CENTRAL AFRICA'S PREMIER BUSINESS TO BUSINESS MINING MAGAZINE
VOL 13 | ISSUE 1 | January - February 2021
The adoption of Optical Character Recognition in mining
In this issue... Ivanhoe posts another record month of development at Kamoa-Kakula Pg 05
Mine dewatering design and tailings management solutions in mining Pg 16
Digital journey in blasting supports mines’ sustainability Pg 28
OUR NETWORK, YOUR OPPORTUNITY. bauma CONEXPO AFRICA, Johannesburg, Gallagher Convention Centre, Midrand, October 13-16, 2021 Sub Saharan Africa’s Leading Trade Fair for Construction, Building Material, Mining, Agriculture & Forestry Machines, Machinery and Vehicles
Showcase your solutions, position your brand as the leader in your sector and reach the continent’s top industry decision-makers! Exhibitor Sectors NEW
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EARLY BIRD CATCHES THE WORM!
Zambian court allows Konkola Copper Mines split
Platinum Group Metals mining & processing project
Atlas Copco: keeping customers connected digitally
MineWare’s OCR system eliminates human error
BMG improves safety in the workplace in Zambia
World’s Leading Power Supplier Helping Miners
CENTRAL AFRICA'S PREMIER BUSINESS TO BUSINESS MINING MAGAZINE
VOL 13 | ISSUE 1 | January - February 2020
Optical Character Recognition systems in mining industry
In this issue... Ivanhoe posts another record month of development at Kamoa-Kakula Pg 05
Mine dewatering design and tailings management solutions in mining Pg 16
Editor Bertha M. bertham@fmdrc-zambia
New year, greater beginnings!
Sub-Editor Nita Karume
Digital journey in blasting supports mines’ sustainability Pg 28
Contributing Writer Oscar Nkala, Mfuneko Jack Lindani Mkhize Caroline Thomas
Cover Image: MineWare’s Optical Character recognition system (OCR)
COVER STORY: PG 09
Optical Character Recognition systems in mining industry The process of using OCR on a mine or business involves creating check sheets using management data and relevant exploratory questions. These sheets can range from information pertaining to safety, production or just general employee feedback questions. www.fmdrc-zambia.com
appy New Year! 2020 made a name for itself as an oh-so unusual year, what with the way most industries were ravaged and businesses
upended. 2021 is the year we are all looking into with optimism, especially in the mining sector. Industry experts have predicted that this year will see a recovery for minerals and metals demand. According to Fitch Solutions’ latest report, miners and metal producers should see a more favorable
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pricing environment this year as almost all mineral and
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Q420, following the drop recorded at the beginning of
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the broader and deeper global economic recovery
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metal prices (except iron ore) are expected to average higher in 2021 on a year-on-year basis. Now although metal prices made an impressive recovery over Q2the year due to covid-19, Fitch notes that prices will still average lower on a y-o-y basis in 2021. In 2021, Fitch says prices will be supported by as covid-19 vaccines are made available. Access to vaccines will also help reduce the disruptions to operations seen in 2020 in multiple key mining countries such as Peru and South Africa. The year is however not off to that good of a start, following the cancellation of the Investing in African Mining Indaba event due to the ongoing uncertainty caused by COVID-19. Fortunately, the 2021 Virtual Mining Indaba that took place earlier on in the month served as a much needed soothing balm in the mining sector, so all in all, not too shabby. Catch the latest mining news from across Africa as well as a special feature on Mine dewatering design and tailings management solutions in mining and How Optimized Energy Management Delivers Reliability, Efficiency and Sustainability at the Fekola Gold Mineamong others. Cheers to the new year and the fruition of a return to the semblance of normalcy in the mining sector!
Mailing Times Media (Pty) Ltd makes every effort to ensure the accuracy of the contents of its publications, but no warranty is made as to such accuracy and no responsibility will be borne by the publisher for the consequences of actions based on information so published. Further, opinions expressed are not necessarily shared by Mailing Times Media (Pty) Ltd
2,500 Zambian Villagers to be Compensated by British Mining Company
Over 2,500 villagers in Zambia are to be financially compensated by a British mining company for significant water pollution to the region’s waterways. In a joint statement issued late last month, the villagers, represented by Leigh Day solicitors, and Vedanta Resources Ltd said: “Without admission of liability, Vedanta Resources Limited and Konkola Copper Mines Plc confirm that they have agreed, for the benefit of local communities, the settlement of all claims brought against them by Zambian claimants represented by English law firm Leigh Day.” The claim was brought by the thousands of locals — including 642 children, against Konkola Copper Mines Plc and its parent company, UK-based Vedanta Resources. Severe Water Pollution Issued in 2015, the claim centred on pollution caused by the Nchanga Copper Mine. A mine that employs 16,000 people
in Zambia — the country’s biggest private employer, and sold a controlling share of its company in 2004 to Vedanta which is one of the largest mining companies in the world. The plaintiffs alleged that the pollution severely impacted the lives and the livelihoods of people living in nearby villages Shimulala, Kakosa, Hippo Pool and Hellen — where the primary source of income is farming and fishing. It was also claimed that toxic effluent discharge from the mine damaged local land and waterways used for irrigation. As a result, the use of polluted water for drinking, washing and bathing caused severe health problems in residents. The villagers sought damages, remediation and cessation to the alleged continual pollution that they say is gravely impacting the quality of their lives. Accountability and Liability In a landmark ruling, Supreme Court judges ruled in April 2019 that the case
could be brought against Vedanta in the English courts because — as the parent company of Konkola, the company arguably owed the villagers a duty of care. Vedanta had published material asserting its responsibility for the establishment of group-wide environmental control and sustainability standards, and therefore it was decided that the company must be held accountable for such statements. The Supreme Court agreed with arguments advanced by the plaintiffs that there was a real risk they would not be able to achieve justice in the Zambian courts due to lack of funding and legal expertise available. It appears that more and more giant international companies are gradually beginning to be held liable for abusive operations in local African communities.
Zambian court denies Vedanta attempt to halt Konkola Copper Mines split
Zambian court dismissed a motion by miner Vedanta Resources’ seeking to stop a state-appointed provisional liquidator from splitting up its Konkola Copper Mines (KCM) unit and selling the assets. The ruling is a blow to the Indian-owned mining company which has said it would fight any attempt by Zambia to sell KCM to third parties.
SmelterCo Limited and Konkola Mineral Resources Limited, effective Feb. 1.
Vedanta has been locked in a protracted dispute with the Zambian government since May 2019, when the Zambian government, which owns 20% of KCM through state mining investment firm ZCCM-IH, handed control of the mine to a liquidator. Judge Winnie SitholeMwenda discharged a Jan. 18 injunction order which Vedanta had sought to restrain Provisional Liquidator Milingo Lungu from splitting KCM and selling the assets.
Vedanta and Zambia are still in arbitration proceedings in London over the KCM dispute, which began when the government accused Vedanta of failing to honour licence conditions, including promised investment.
“The ex parte Order of Injunction dated 18th January 2021 is, accordingly, discharged forthwith,” she wrote in the ruling. The ruling awarded costs to the defendants (the provisional liquidator and KCM) and denied leave to appeal.
Lungu has previously said asset disposal is KCM’s last remaining option. Lungu said the order that instated him as provisional liquidator set out powers including the ability to split and sell the company. In a restructuring announced in December, Lungu said KCM would be split into two subsidiary companies: KCM
Zambia’s Court of Appeal in November ordered a halt to KCM liquidation proceedings, to allow Vedanta and ZCCM-IH to proceed to arbitration. ZCCM-IH is appealing that ruling.
ZAMBIA: World Bank grants $65 million for sanitation around mining sites
he World Bank has granted $65 million to finance an environmental remediation and restoration project around several mining sites in Zambia. Mining that benefits the Zambian economy has many impacts on the environment, including pollution that affects people’s health. Initiated by the Zambian government, the Zambia Mining and Environmental Remediation and Improvement Project (ZMERIP) aims to clean up the environment around mining sites. It now benefits from financial support of $65 million from the World Bank. The funds granted to the Zambian government will be used to clean up contaminated soils in at least four municipalities. The authorities will also work to upgrade infrastructure to prevent run-off around schools in the city of Kabwe in Central Province. The ZMERIP project will also enable the rehabilitation and closure of a pilot tailings dam and excavation site in the Copperbelt Province.
The fight against lead pollution An important component of the Environmental Remediation and Improvement and Mining Project in Zambia is dedicated to the control of lead pollution. The Zambian government wants to detect and treat children with high lead levels in Kabwe. In this city of almost 189,000 people, “Lead exposure is mainly due to the ingestion of contaminated food, but also to inhalation and skin penetration. Affected people have high levels of lead in their blood,” says the World Bank. Lead is a silent killer that causes anaemia, headaches, convulsions, abdominal pain, neurological symptoms and developmental delays, especially in younger people. Supporting local development According to the World Bank, remediation activities and management of lead contamination hotspots should help protect about 70,000 people. At least 30,000 children will benefit from education and awareness campaigns.
The government of Zimbabwe sets record straight on riverbed mining
he Government of Zimbabwe will investigate mining syndicates defying a ban on riverbed mining, but operations on some rivers deemed to have capacity to sustain activities will be allowed with approval. Cabinet last September announced a ban on riverbed mining and mining in national parks, but malcontents in the small scale mining sector have continued operating clandestinely. Government said operations on rivers such as Angwa and Save, which had capacity to sustain riverbed mining, could be sanctioned after strict review and approval of working plans. Ministry of Mines and Mining Development Permanent Secretary, Mr Onesimo Moyo, said there had not been a change to last year’s Cabinet directive and cases of defiance would be investigated.
More than 3,000 young people affected by lead pollution in Kabwe are already being assisted through direct health interventions, including lead testing, treatment and nutritional supplements. The ZMERIP project will also enable the creation of “environmentally friendly” income-generating activities for unemployed women and young people. It also includes a component dedicated to raising awareness of lead and other heavy metal pollution in mining areas. “Before implementing the activities, the project team made sure that these conditions were in place. Rehabilitation work in Kabwe and major infrastructure activities in Copperbelt province were delayed by almost 8 months due to Covid-19 restrictions,” says the World Bank.
The minister also made it clear that there is no change to the Cabinet directive that bans riverbed mining. If there is anyone still involved, the ministry will investigate such cases of miners who are still doing what was banned and appropriate action will be taken. Government policy was clear that mineral exploitation should be done in an environmentally friendly manner. In the case of national parks, the reasoning was motivated by the need to preserve the country’s wildlife — which is key to the country’s tourism revival strategy.
According to Mr. Moyo, there are rivers such as Save and Angwa which can sustain riverbed mining. However, he further clarifies that before this is done. those who want to mine should present their pilot plan to Government for approval so that it can be assessed if their activities are suitable for the river.
While others heeded the Government’s call, a number of miners continue operating in flagrant disregard of the Cabinet directive. Environment, Climate, Tourism and Hospitality Industry Minister Mangaliso Ndlovu recently told Parliament that Government arms had moved in to stop operations.
Ivanhoe posts another record month of development at Kamoa-Kakula
o-Chairs Robert Friedland and Yufeng “Miles” Sun of Ivanhoe Mines have announced that underground development at the Kamoa-Kakula copper project in the Democratic Republic of Congo (DRC) mined and stockpiled 269,000 tonnes of ore grading 5.36% copper in December from the Kakula and Kansoko mines. The tonnage was 7.6% higher than November, while the copper grade was 10.5% higher. The project’s pre-production surface stockpiles from the Kakula and Kansoko mines now contain about 1.52-million tonnes of high-grade and medium-grade ore, at an estimated blended grade of 4.03% copper.
The stockpile so far contains more than 61 000 t of copper. Ivanhoe plans to have 125 000 t of contained copper stockpiled prior to the planned start of processing activity in July. Underground development at the project remains 10 km ahead of plan, with 2.7 km of development having been completed in December, which is a new monthly record at about 620 m more than the prior monthly record achieved in October. Ivanhoe has completed almost 30 km of underground development at the project. “After more than 26 years of continuous efforts, Ivanhoe and its joint venture partners are less than six months away from initial production at Kamoa-Kakula
Lucapa Diamond Company sells diamonds from Lilo at approximately US $8m
ucapa Diamond Company (LOM) has sold a batch of diamonds produced at the Lulo alluvial mine in Angola for approximately US $8m. In its first sale of the year, Lucapa and its partners, Empresa Nacional de Diamantes E.P. and Rosas & Petalas sold the rough diamond parcel of 4273 carats by Sociedade Mineria Do Lulo for US$5.9m per carat. Lucapa is a diamond producer with mines in Angola and Lesotho. The Lulo alluvial mine in Angola and the Mothae kimberlite mine in Lesotho both produce
diamonds, with more than 75 per cent of revenues generated from the recovery of stones with more than 4.8 carats. Lulo has produced 18 diamonds of more than 100 carats to date and is one of the highest average US dollar per carat alluvial diamond producers in the world.The mining company’s Managing Director Stephen Wetherall said that prices achieved by SML at this sale continued to reflect the positive industry mood, and with sales from both operations in 2021 already totalling A$15m, it has been a solid start to the
– the first world-scale copper discovery on the African continent in generations. This year’s transformation marks the beginning of the next chapter of our journey that began in 1994 and has involved thousands of dedicated and talented people. “Our expectations are for continued rising copper prices through 2021 and beyond; as such, the timing of Kamoa Copper’s first production is fortuitous given that the project is scheduled to have ore stockpiles containing more than 125 000 t of contained copper available for processing by July 1. A rising copper price directly impacts the realisable value of the contained copper in the stockpiles, the cost of which is capitalised,” says Ivanhoe cochairperson Robert Friedland. The company envisions an initial 3.8-million-tonne-a-year operation, at a feed grade of 6% copper. Phases 1 and 2 of the project are forecast to produce about 400 000 t/y of copper. The project’s phased expansion scenario to 19-million tonnes a year would make the Kamoa-Kakula project the world’s second-largest copper mining complex, with peak copper production of more than 800 000 t/y. The Kamoa-Kakula project is a joint venture between Ivanhoe with 39.6% ownership, Zijin Mining Group with 39.6% ownership, Crystal River Global with 0.8% ownership and the DRC government with 20% ownership
year-as with the first sale of Mothae diamonds earlier on this year. Lucapa Diamond Company Ltd is a growing global producer of high-value diamonds from the Lulo alluvial mine (Angola) and Mothae kimberlite mine (Lesotho). Lucapa is also achieving encouraging exploration results from its search to discover the primary kimberlite source of the exceptional alluvial production from Lulo.
Barrick Gold: Kibali Continues to soar to greater heights
he Barrick Gold operated Kibali Joint Venture in the DRC produced 808,134 ounces of gold in 2020, achieving the top-end of production guidance for the year1. This performance was driven by its underground operation which achieved record monthly and quarterly ore production in December and Q4 2020.
against the pandemic, Kibali is currently partnering with the National Laboratory Institution in training medical staff to diagnose the disease. Barrick president and chief executive Mark Bristow said the pandemic response had once again demonstrated the company’s value as a partner to its host countries and communities.
Kibali is a world leader in automated underground mining, through systems that allow multiple autonomous machines to operate on the same haulage and production levels, and provide realtime visibility of all operations as well as automated control of the ventilation fans. Leading-edge technology is also being harnessed elsewhere at Kibali and the successful commissioning of an online particle size analyzer will optimize fine grinding on its ultrafine grind (UFG) mills. Kibali has, since commissioning, consistently lowered its carbon emissions thanks to its three hydropower stations and the implementation of predictive maintenance monitoring at these plants will further minimize downtime. Its new battery-based reactive power support system has further reduced the mine’s reliance on back-up thermal power. At the same time, Kibali has retained its focus on exploration and resource conversion and looks set to once again
replace the ounces depleted by mining, thus extending the life of the mine. Its open-pit operation is set up for a solid year with development of the access to the Sessenge orebody completed ahead of plan. A robust open-pit component has been included in the mine plan and will provide additional processing flexibility to the plant over the next 10 years. Kibali retained its ISO 45001 and ISO 14001 safety and environmental accreditations. Effective Covid-19 prevention protocols also remain in place. Having donated more than $2 million to the DRC government in the form of equipment to support the national campaign
“While protecting our people and our business from the impact of Covid-19, we have continued to invest in community improvement projects, skills development programs to deliver more Congolese managers and technicians, and the implementation of the second phase of the Watsa/Durba concrete road construction. Kibali’s policy of supporting and mentoring local contractors and suppliers has created a new economic frontier in this remote region. Last year we spent more than $200 million with local businesses on services such as civil construction, roadworks, plant maintenance, trucking and catering,” he said. Over the past 10 years, Kibali has pumped $3.4 billion into the Congolese economy in the form of taxes, permits, infrastructure, salaries and payments to local suppliers.
Metso Outotec wins an order for an iron ore pelletizing plant in China
etso Outotec has signed a contract with Beijing Shougang International Engineering Technology Co. Ltd (BSIET) on the delivery of environmentally sound technology for an iron ore pelletizing plant to be built in Southwest China. The order value is not disclosed. The contract has been booked into Metals segment Q4 2020 orders received. Metso Outotec’s scope of delivery covers the engineering and design of the indurating system, engineering of the process gas fan system, supply of proprietary and key process equipment,
instrumentation and control systems, as well as supervisory services and technical training. The core of the plant is Metso Outotec’s traveling grate pellet indurating furnace with a grate area of 432 m². “We are very pleased about this new order, and we are looking forward to working with the customer operating the steel plant and our long-term partner BSIET. This is the second pelletizing plant contract we’ve received in China within six months, underlining the strong presence of our traveling grate technology on the Chinese market,” says Tobias Stefan, Vice President, Ferrous
& Heat Transfer business line at Metso Outotec. Pellet production at the plant is estimated to start by mid-2022. Metso Outotec’s traveling grate technology produces uniform pellets and ensures high performance and quality with low investment and operating costs, as well as low energy consumption and emissions.
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Ramaphosa praises the South African mining sector for its resilience during the COVID-19 pandemic
resident Cyril Ramaphosa said they want to promote greater exploration and beneficiation of minerals, during his opening address to Mining Indaba Virtual 2021, where he praised South African mining for having shown tremendous resilience in the midst of Covid-19 pandemic. Ramaphosa singled out mining and quarrying as being among the biggest contributors to economic growth in the third quarter of last year, when the 288% growth recorded was underpinned by platinum group metals, iron-ore, gold, manganese ore and diamonds in particular. The President spoke laudably of mining’s strong showing on the Johannesburg Stock Exchange in 2020 and put the ability of mining to weather the storm down to the positive working relations between government and the mining industry.
“This is something we should continue to build on. We should adapt to the realities of Covid-19, provide greater policy certainty, attract higher levels of investment, and protect livelihoods at the same time,” Ramaphosa said. He described sustainable mining as the key to accelerated industrialisation, innovation, competition and creating employment. “To ensure we increase the contribution of both mining and energy to meeting our developmental aspirations, we’ve taken significant steps to resolve policy and regulatory issues that investors have identified and raised with us as constraints to greater investment,” he revealed. Ramaphosa stated that the ability of mining to weather the coronavirus storm was also down to the positive working relationship between government and the mining industry – a relationship that all parties should continue to build on.
He further stated that the sector as well as government should adapt to the realities of COVID-19, provide greater policy certainty, attract higher levels of investment and protect livelihoods at the same time. “Sustainable mining is key to accelerated industrialisation, innovation and creating employment,” he added. To that end, to ensure that there is a continual increase of mining to meet the country’s developmental aspirations, Ramaphosa stated that significant steps have been taken to resolve policy and regulatory issues that are a hindrance to investment. Ramaphosa further called for the mining sector to strive for sustainability, competitiveness and transformation. He urged companies to make ESG a key part of their strategies and also called for the greater inclusion of women in mining.
PRODUCT & TECH
The adoption of optical character recognition in mining
ptical Character Recognition (OCR) is process of classification of optical patterns contained in a digital image. The character recognition is achieved through segmentation, feature extraction and classification. This chapter presents the basic ideas of OCR needed for a better understanding of the book. The chapter starts with a brief background and history of OCR systems. Then the different techniques of OCR systems such as optical scanning, location segmentation, pre-processing, segmentation, representation, feature extraction, training and recognition and post-processing.
The different applications of OCR systems are highlighted next followed by the current status of the OCR systems. The process of using OCR on a mine or business involves creating check sheets using management data and relevant exploratory questions. These sheets can range from information pertaining to safety, production or just general employee feedback questions. Information is captured on physical sheets and collected at a central point for digital scanning. The system reads, populates and actions data in less than 30 seconds per sheet, so that all data is
available digitally. By linking predefined answers to certain questions defined in the risk model, called mapped questions, the system can automatically trigger predefined actions by utilizing the action manager. Mobile device capability allows data to be captured immediately and on-site, while data is fresh and visually available. The use of OCR systems eliminates the need for data to be read and captured by humans, negating the possibility of human error. This system will benefit any business that wishes to streamline operational safety, improve efficiency and eliminate the factor of human error in data gathering.
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PRODUCT & TECH
MineWare’s Optical Character recognition system (OCR) takes human error out of the safety equation
ptical Character Recognition (OCR) is the recognition of printed or written characters by a computer. The process of using OCR on a mine or business involves creating check sheets using management data and relevant exploratory questions. These sheets can range from information pertaining to safety, production or just general employee feedback questions.
available. The use of OCR systems eliminates the need for data to be read and captured by humans, negating the possibility of human error. To date the OCR system has been used to scan and check operational and SHEQ capture sheets, which would
Information is captured on physical sheets and collected at a central point for digital scanning. The system reads, populates and actions data in less than 30 seconds per sheet, so that all data is available digitally. By linking predefined answers to certain questions defined in the risk model, called mapped questions, the system can automatically trigger predefined actions by utilizing the action manager. Mobile device capability allows data to be captured immediately and onsite, while data is fresh and visually
then populate relevant databases, all as part of the Syncromine software suite. In response to the Covid-19 crisis, this technology is now being used to scan health checklists that have to be filled in by all visitors to the mines. This data is then seamlessly converted to digital information and analyzed. MineWare’s OCR software feature is working around the clock to scan and verify the avalanche of Covid-19 health assessment forms that the mines have instated, in an effort to keep visitors and workers safe, while ensuring compliance with national guidelines.Two new installations of this functionality are currently taking place at Gold Fields Limited and Impala Platinum in South Africa. This system will benefit any business that wishes to streamline operational safety, improve efficiency and eliminate the factor of human error in data gathering.
MineWare’s Optical Character Recognition system (OCR) is scanning Covid-19 safety forms in mines, ensuring a safer work environment.
OPTICAL CHARACTER RECOGNITION SOFTWARE Part of MineWare's SYNCROMINE SUITE Optical Character Recognition (OCR) is the recognition of printed or written characters by a computer In response to the Covid-19 crisis MineWare’s Optical Character Recognition technology, part of their Syncromine Suite, is now being used to scan health checklists that have to be filled in by everyone on the mine. This data is then seamlessly converted to digital information and analyzed. Mobile device capability allows data to be captured immediately and on-site, while data is fresh and visually available. The use of OCR systems eliminates the need for data to be read and captured by humans, negating the possibility of human error. www.mineware.co.za
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The 7th edition of MMEC: Mozambique’s longest lasting Mines, Energy, Oil and Gas event, will take place in April 2021 in a hybrid format
he Joaquim Chissano Conference Centre will host the 7th edition of the biennial event on Mining, Oil, Gas and Energy of Mozambique, which will take place from 21 to 22 April 2021. The conference is held under the theme “Utilizing Natural Resources as the Catalyst for Economic Development and Diversification”. MMEC is the most successful industrial exhibition in Mozambique and is estimated to attract participants from over 30 countries. The event was initially planned to happen in 2020 but due to the Covid-19 pandemic, it has been decided to host the event in 2021, and this time, the event will be hybrid, meaning that the participants can attend to the event on site in Maputo or online. MMEC is a biennial international comprehensive event covering the entire extractive industry with key objectives of promoting investments in these sectors; sharing knowledge and experiences; advancing partnerships; hear from key policy makers from regional and international partner organisations; and positioning newly qualified Mozambican students within the industry. Endorsed by ENH - Empresa Nacional de Hidrocarbonetos E.P, MMEC 2021
Conference & Exhibition will also have the participation of Ministers, Senior Directors of governmental companies, strategic development partners, operators from the oil & gas, mining, and energy sectors. MMEC also counts with the participation of institutional investors and service providers with whom the other attendees will be able to interact, share trends, exchange contacts and establish the largest commercial partnerships. What is new for MMEC 2021? The 7th edition will bring new features to all participants, such as: Simultaneous Translation in English and Portuguese; online skills development course before the event; face to face or virtual participation; online news and project opportunities through our dedicated website; application and social media portals to market your business news and developments. The MMEC conference application is designed to keep you up to date on the programme, arrange one-on-one meetings, and access participants list, chat with attendees and access more content. The event will continue to present Mozambique as a business-friendly country where policy reforms are being implemented to encourage the flow of
domestic and foreign direct investment into the extractives industry. This is the largest and most successful industry focused exhibition in Mozambique, as the event attracts visitors with budget and decision-making power to engage with technology and solution providers. Mozambique is on the cusp of becoming a very large player in the LNG space, with several projects currently in play. It is also known as one of the key countries for the mining of rubies, with the Montepuez mine having the richest known ruby deposit, generating revenue of almost US$122 million for Gemfields. Other natural resources include coal, mineral sands, hydropower, iron ore, tantalite, gold and limestone. From an energy perspective, Mozambique has the largest power generation potential in Southern Africa from untapped coal, hydro, gas, wind and solar resources. Hydropower is the main source of energy currently however, the government is focussing on renewable energy and mini/off grid solutions and working towards incorporating domestic gas plans. REGISTRATION LINK: https://ametrade.org/event/mmec-2021/
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Platinum Group Metals mining and processing project elevates platinum to a new level
he innovative new platinum group metals (PGMs) mining and processing project that slashes 82% off electricity use and elevates platinum to a new high level of greenness leapt out of its starting blocks in the North-West province this month. “We’ve commenced. The tanks are rolling,” Pallinghurst managing partner and cofounder Arne Frandsen told Engineering News & Mining Weekly in a Zoom interview. PGMs producer Sedibelo Platinum Mines Limited, of which Frandsen is chairperson, is expanding its Pilanesberg Platinum Mines and building the revolutionary new ‘green’
Kell processing plant, which uses only 18% of the energy normally associated with conventional PGMs smelting, axes associated carbon emissions, improves recoveries, lowers operating costs and eliminates sulphur dioxide emissions. Kell’s carbon dioxide (CO2) emissions from concentrate to final refined metals are only 19% of the CO2 emissions caused by the current smelting/refining route. Sedibelo shares an interest in Kell South Africa with the State-owned Industrial Development Corporation (IDC) and founder Keith Liddell through Lifezone.
“The IDC has been an enormously supportive investor since 2012. They’ve put money in, they’ve put quality management in and when it comes to Kell, before it was fashionable, the IDC was part of it. I’m extremely happy and we’re very fortunate to have this relationship with the government through the IDC,” Frandsen added. The end products can be customised and the proposed Sedibelo Kell plant will be producing refined 99.95% PGM metal products. Locked-up ‘work in progress’ PGMs inventory is 90% lower, releasing working capital and shortening payment pipelines from several months for
smelters down to a month or so. In fact, for a mining company that is currently selling concentrate, the release of lockedup working capital can pay more than half of the cost of a Kell plant. Hydrogen fuel cells, which are being adopted globally to generate emissionfree transport and carbon-free power, rely on platinum catalysis. Continued production of platinum with the help of frowned-upon coal-fired electricity is now avoided with the use of Kell technology. The technology thus has the potential to reposition PGMs production into the ‘green’ space. On the capital required for the expansion sourced from existing cash resources and future cash flow, Frandsen said: “It’s wonderful to see that the industry is actually making money, not only us, but the entire industry, and it is nice to see that the prices have come back. I still want to mention that platinum is still half of what it was when I invested in 2008. “Palladium is higher, rhodium is higher, the exchange rate is helping, but there is still upside and, in my view, we still have to see a correction of the platinum prices. It’s abnormal that platinum is trading at half of what palladium is when it should be trading at near double. I think there is still a lot of upside. “When investors are willing to come into an industry that has done it’s best to limit its carbon footprint, like we do with Kell, I think we will attract new investors to South Africa,” said Frandsen. Pilanesberg Expansion The opencast operations at Pilanesberg Platinum Mines comprise the contiguous deposits of Sedibelo Central, Magazynskraal and Kruidfontein. These are known as the Triple Crown properties, which are considered one of the world’s largest undeveloped PGM deposits. They have an estimated resource base of more than 60-million four-element (4E) PGM ounces. This expansion includes the construction of a 110 000 t Kell beneficiation plant. The predominantly shallow deposits will enable safe and sustainable mining activities for potentially more than 60 years. The first ounces from Triple Crown are expected in 2023. The Triple Crown expansion will be mined simultaneously with ore from the
existing opencast upper group two (UG2) reef and Merensky operation, using two separate decline shaft systems. The existing Pilanesberg Platinum Mines’ concentrator plant has the capacity to be used to process the Triple Crown ore as well as ore from the openpits. With minimal reconfiguration, the Triple Crown UG2 and Merensky ore will be blended and processed through the existing Merensky plant, thereby reducing capital expenditure as well as lowering operating cost significantly. Sedibelo’s current workforce of 1 500 employees is expected to grow significantly as the Triple Crown operations develop. More than 60% of the current workforce is from the local communities. Sedibelo expects that the new positions will also be taken up by local employees predominantly. Sedibelo’s environment-friendly PGMs are poised to become an important part of future ‘green’ electrification in hydrogen fuel cells around the world. Europe moved towards clean mobility last July,
when the European Union announced a new hydrogen strategy as part of a green recovery from the economic effects of the Covid-19 crisis. Plans to increase the production of green hydrogen fuel, which is made without CO2 emissions by using renewable electricity to separate the hydrogen and oxygen in water, are set to provide the green hydrogen energy for transportation as well as industrial, commercial and residential activities.
READY GATE Adjustable Self-Closing Safety Gate
SHA and ANSI Standards require any surface above 48” (4 feet) to be guarded by guardrail systems. Any opening in the guardrail system must be protected by an offset rail or self-closing safety gate. The Model RG (Ready Gate) is an adjustable self-closing safety gate that meets the current requirements of OSHA 1910 Subpart D as well as ANSI-A1264.1-2017, and is available in two sizes, to protect 16” to 26” or 24” to 40” guardrail openings. The gate can easily be field mounted as left-opening or right-opening, and the included mounting brackets are adaptable to round or square guardrails. The core of the Model RG (Ready Gate) is a stainless-steel spring that resists rust while also ensuring the gate closes automatically. The gate standard construction is a mild steel/ carbon steel frame with a UV resistant red color polyester powder top coating and a zinc-rich primer underneath. A
strike plate adds additional strength to the gate and a noise dampening foam pad reduces loud noise when the gate closes. If you would like additional information on this or other products that Conveyor Components Company offers please contact their sales department toll free 800-233-3233, fax 810-679-4510, e - mail- info @conveyorcomponents. com or visit their website at www. conveyorcomponents.com. An ISO 9001 certified company.
Tailings storage facilities design and tailings management
ustainability and social responsibility have become a top priority for mining companies. Water is becoming scarcer, and the cost of water is rising in some regions to all-time highs. Low head grades and ore bodies continue to pose their own challenge with the growing demand. Meanwhile tailings dams’ failures are causing destruction ranging from fatalities of innocent lives to property destruction. Water is critical for every mine site but its management can pose a challenge. From water scarcity through to water excess, mine dewatering can be a difficult process to navigate. Whether you need to install a new dewatering
circuit or iron out issues with an existing one, we’ve got you covered: • Develop a reliable and flexible dewatering plan • Reclaiming process water for reuse • Remove excess water from your pit An important component of a responsible tailings management strategy is the dewatering of tailings. It can be a difficult process, however when undertaken successfully, can deliver significant benefits to mine operators. Why you should dewater your tailings The foremost benefit of dewatering tailings is the reduction of water that needs to be transported from a process
plant to a tailings storage facility (TSF). Reduced water content means tailings slurry volume is decreased, allowing for smaller pipelines and pumping equipment to be used. This can also minimise power requirements. Thickened tailings and paste can improve the stability of TSFs and diminish their footprint. In some instances where existing TSF capacities are limited by regulatory or other environmental considerations, thickened tailings can help to extend the life of the mine. Proper containment of tailings reduces the risk to people and the environment, and when decommissioning a mine,
thickened tailings facilities are easier to rehabilitate. To a growing extent, thickened tailings are also used for underground mine backfill. This can increase productivity and reduce mine cycle times as well as surface TSF disposal volumes. Underground mining conditions can also be improved due to decreased water and slimes handling. Important considerations and challenges When tailings are not properly managed, the results can be lethal. It is vital that mine operators have a clear understanding of key risks and considerations related to this process, in particular, tailings dewatering. Every mine site is different and subject to varying environmental, regulatory, capital and operating cost constraints. Cost is a key consideration for many operators and can adversely affect the viability of a mine site. Therefore, it is necessary to implement a tailings management strategy which provides both reliability and value for money.
Environmental limitations are also a major factor when establishing a TSF. In parts of the world where there is challenging topography, such as mountainous regions or other environmentally sensitive landscapes, TSFs may need to be built further away from the process plant. This can result in slurry being transported across longer distances or higher elevations. Dewatering of tailings is a viable option in these scenarios as less slurry needs to be moved, in turn reducing operational costs. Some operations produce highly diluted tailings which require extensive dewatering to reach the desired level of thickness. Other slurries may contain extremely fine particle solids, which can also be difficult to manage. Large mine sites or those with complex ore bodies can produce many different tailings waste slurries which may require varying methods of treatment. Across this multitude of situations, the operator must determine all associated costs and assess the level of dewatering required
to confirm the most suitable solution for their site. While some mines are in a position to increase the size of their TSFs, many are not and must implement a viable dewatering process which can involve significant capital expenditure. If dewatering tailings to the highest possible degree, operators also need to develop a suitable strategy for transporting the waste material. Tailings which are too thick or dry to be pumped may need to be transported by either a conveyor system or truck. Finally, when a mine site reaches the end of its life and moves into the decommissioning phase, TSFs must be dealt with in accordance with regulatory and legislative requirements. As many mine sites need to be rehabilitated and restored to a natural state, a key benefit of producing thickened tailings is its ability to be covered with overburden and re-planted with suitable vegetation.
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Photo credit – Hydroserv International
The Dewatering Institute; bringing together the global dewatering industry
the world’s largest dewatering contractors and consultants, played an integral role in establishing TDI in 2020. It was his passion for training and knowledge sharing in his field that brought him to founding the Institute.
he Dewatering Institute (TDI) is a global platform that brings together the dewatering industry internationally, through a knowledge sharing platform and by promoting best practices. The network includes practitioners from across the industry including mine dewatering, construction dewatering, groundwater control and covers Geotechnical Investigation, Hydrogeology, Drilling, Ground Source Energy Wells, Design, Pipeline, Pumps, Power, Monitoring, Groundwater Treatment, System Operation, Groundwater Recharge, System Decommissioning and more. Building foundations for the dewatering industry TDI founder Christoffel Botha, who has held executive positions for over 16 years working across the globe on leading design and construction teams of some of
Photo credit Christoffel Botha – TDI Founder & Executive Member of the Advisory Council
“While working internationally on over 350 dewatering systems for various companies, I came across similar challenges. This is what motivated me to start TDI; transferring knowledge is not only key in driving the industry forward, but also ensures that the current and the next generation of practitioners have the necessary technical and practical experience in our specialised field. Thus, bridging the gap between academic qualifications, experience and the art of dewatering.” According to Executive Member of the Advisory Council member Christoffel Botha.
TDI for the Mine dewatering Industry “TDI’s network and initiatives cover the mine dewatering industry in a similar way they do the construction dewatering industry.” according to Christoffel Botha. “Mine dewatering uses similar techniques and technology and they both require an understanding of hydrogeology, dewatering technologies and environmental sensitivities. We have a diverse Advisory Council that brings the required expertise to cover our mine dewatering and construction areas for the institute. Delivering effective dewatering solutions require an in-depth understanding of the external factors and parameters that may impact a mining operation. This is why it is crucial to promote best practices directly from professionals.” Christoffel adds. Fundamentals, advantages of becoming a TDI member TDI’s fundamentals are Education, Knowledge Sharing, Best Practices and Networking. These are put into practice through a range of activities including webinars, training courses, case studies, short guides and continual professional development. Networking and brand exposure provides members with a variety of new opportunities to reach a broader audience, through social media, events, blog posts and newsletters. “The events and training courses are crucial to elevate and improve the employee’s knowledge
while simultaneously networking with fellow industry professionals across the globe. “says Christoffel. “Our platform brings together players from across the industry. TDI’s purpose is to serve all members and collaborators from the entire life cycle of a project. As a member of TDI, you will have access to all resources and case studies shared by others to promote knowledge sharing within the industry.” Christoffel Botha adds. TDI Founding Members Founding members that are supporting TDI in expanding the community include Griffin Dewatering LLC, Asiawaterjet Equipment, Roscoe Moss Company and CRI Pumps. “Griffin Dewatering is excited to be part of The Dewatering Institute as a Founding Member. It enables us to connect with others on all levels of our industry. We are keen to share our extensive dewatering know-how and work together with TDI and fellow members to further develop the industry and create best practices in the near future.” According to Chris Peschang, VP Business Development of Griffin Dewatering. Additional members from all across the globe have joined TDI such as GEOROC, Keller, Franklin Electric, Umvoto Africa, HydroGeek Consulting, Delta H, GEOSS South Africa to name a few.
Plans moving forward For the year 2021 TDI will be focusing on building the knowledge centre, establishing TDI training courses and expanding its network of members and followers. “Our aim is to create short online courses in collaboration with TDI members and later develop these into extended CPD registered courses. TDI’s future plans involve creating industry guidelines using the know-how and practical expertise gathered through the members with diverse topics of focus within the industry and ultimately to establish TDI as an accreditation entity within the dewatering industry.” says Christoffel How to become a member of TDI? Becoming a TDI member means you get to be a part of a growing and thriving community of industry specialists. Reap the rewards of knowledge-sharing, education, best practices and networking within the dewatering industry. TDI’s purpose is to serve all its members and collaborators including project owners, government bodies, engineers, contractors, manufacturers and suppliers. To stay up to date with the latest developments in the industry visit the TDI website www.dewateringinst.com, subscribe to the newsletter and follow TDI on social media. To register as a member contact TDI on admin@ dewateringinst.com
How Optimized Energy Management Delivers Reliability, Efficiency and Sustainability at the Fekola Gold Mine By Luke Witmer, General Manager, Data Science, Wärtsilä Energy Storage and Optimization The reciprocating engines operate most efficiently at 85-90 percent of their capacity, this is their “sweet spot”. But if there is a sudden spike in demand, if a little more power is needed, or if mining equipment is coming online, then another engine needs to be run to meet the extra load. With the battery providing spinning reserves, the engines can be kept running at their sweet spot, reducing the overall cost per kilowatt hour. Moreover, with the solar plant providing power during the day, three to four engines can be shut down over this period, providing a quiet time to carry out preventive maintenance. This really helps the maintenance cycle, ensuring that the engines operate in a more efficient manner.
ince B2Gold first acquired the Fekola gold mine, located in a remote corner of southwest Mali, exploration studies revealed the deposits to be almost double the initial estimates. A recent site expansion has just been completed, and while the existing power units provide enough power to support the increase in production, the company sought to reduce its energy costs, cut greenhouse gas emissions, and increase power reliability. The addition of a 35MWp solar photovoltaic (PV) plant and 17MW/15MWh of energy storage to the existing 64MW thermal engine plant was decided. This new energy mix is anticipated to save over 13 million litres of fuel, reduce carbon emissions by thirty-nine thousand tons per year, and generate a payback in just over four years. Such an elaborate hybrid configuration needs a powerful brain to deliver on all its potential: Wärtsilä’s GEMS, an advanced energy management system, has been set up to control the energy across the fleet of power sources,
thermal, renewable, and battery storage. The integration, control, and optimization capabilities provided by GEMS allow the thermal units to be run at the most efficient rate and enable the battery storage to handle the large load step changes and volatility of the solar PV generation assets. Integrated Hybrid Energy Solution In the context of the Fekola mine, which is an off-grid electrical island, the battery is performing a lot of different services simultaneously, including frequency response, voltage support, shifting solar energy, and providing spinning reserves. The energy load is very flat, with a steady consumption rate around 40MW as the mining equipment is operating consistently, 24/7. However, if an engine trips offline and fails, the battery serves as an emergency backstop. The controls reserve enough battery energy capacity to fill the power gap for the time it takes to get another engine started, and the software inside each inverter enables the battery to respond instantaneously to any frequency deviation.
Solar PV volatility can be intense. On a bright day with puffy clouds passing by a solar farm of this size can easily see ramps of 25MW over a couple of minutes. This requires intelligent controls, dynamically checking the amount of solar that can be let into the grid without causing an issue for the engine loadings or without overloading the battery. Conducting the Orchestra The GEMS intelligent software provides the optimization layer that controls all the power sources to ensure that they work together in harmony. The user interface (UI) gives access to all the data and presents it in a user-friendly way. Accessible remotely, all operations are simulated on a digital twin in the cloud to verify the system controls and simulate the most efficient operating scenarios to lower the cost of energy. This is an important software feature, both during and after commissioning as it allows operators to train on the platform ahead of time and familiarise themselves with the automated controls and dynamic curtailment of renewables. The UI provides the forecast for renewables and the battery charge status at any given moment, it can provide push email
or phone notifications for alerts; telling operators when to turn off an engine and when to turn it back on. The software is constantly analysing the data and running the math to solve the economic dispatch requirements and unit commitment constraints to ensure grid reliability and high engine efficiency. Load forecasting integrates the different trends and patterns that are detectable in historic data as well as satellite based solar forecasting to provide a holistic approach to dispatching power. The Fekola site has a sky imager, or cloud tracking camera with a fisheye lens, that provides solar forecasts for the next half hour in high temporal resolution. To ensure that operators really understand the platform, and have visibility over the advanced controls, the UI provides probability distributions of the solar forecast. Tracking the forecast errors enables operators to see whether the solar is overproducing or underproducing what the forecast
was expecting at the time and provides visibility to the operators on the key performance indicators. This feedback is an important part of the machine/ human interface and provides operators with insight if an engine is required to be turned on at short notice. Automated curtailment enables the optimization of the system providing a reactivity that people cannot match. By continually monitoring the engine loadings and battery, the system is ready to clamp down on solar if it gets too volatile or exceeds some spinning reserve requirement. For example, if a large, unexpected cloud arrives, the battery is dispatched to fill the gap while the engines ramp up. Once the cloud disappears however, the engines remain committed to operating for a few hours, and the solar power is transferred to recharge the battery. Over time, as load patterns shift, the load forecasting algorithm will also be dynamically updating to match the changing realities of the load. As mining
equipment hits layers of harder rock, increasing the power load, the system will adjust and dispatch the engines accordingly. Hybrid solutions will become the new gold standard for off-grid heavy energy users The Fekola mine project incorporates the largest off-grid hybrid power solution in the world, demonstrating the growing case for clean energy and its sustainable and economic potential for mines in Africa and beyond. As the cost of batteries and solar panels continues to become more competitive, hybrid solutions are proving to be a realistic and effective means for increasing energy reliability and lowering operating costs in any context, thus freeing up resources to improve the human condition; whether through cheaper materials and gainful employment, or by providing broader access to reliable electricity for healthcare, education, and improved quality of life.
16 - 17 march 2021 | VIrTUaL ExplorE UnEarthEd opportUnitiEs
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TESTIMONIAL Fixed Ratio Pressure Reducing Valve Purchasing and Supply expert Benjamin Zis highly recommends Plasson’s new valve based on his experience during his work at Salt Lake Mining Pty Ltd, Beta Hunt Mine until earlier this year.
The 2:1 fixed ration valve works in the most testing underground conditions.
Product Details Q. How would you describe the site and water conditions of the Plasson 2:1 fixed ratio valve in use? The valve was placed in a small cutty of the primary decline in moderately high traffic and wet environment; the water was super saline and at high head pressure. Q. How did the installation process of the valve go? Did you notice any leaks? The valve performed well and was as simple to install as a standard Plasson coupling. There have been no instances of the Plasson 2:1 fixed ratio valve leaking as yet. Q. What makes the Plasson valve advantageous compared to other products (life span, etc.)? The easier installation and the ability to fit the valve directly to the poly water line meant no metal was left exposed to the environment and there was no need to space the line of the walls to prevent contact rust with ground support or wall hooks. The lack of corrosion and zero impact from the sun makes it an ideal option for underground operations. Q. Do you have confidence in the valve and would you recommend it to others? I would recommend the valve as an absolute must-have addition to any Plasson installation; it is a simple and effective alternative to the industry standard valves that eliminates many of the common problems encountered. Q. In general with all Plasson fittings you have used on site, would you recommend them? With 10+ years in the mining industries, I have personally come to depend on the Plasson range for dewatering and poly fixtures. Their superior design, interchangeable parts and readily available supply network mean I can always rely on the brand.
Plasson’s new lightweight fixed ratio pressure reducing valve is designed to reduce static “head” pressure, especially in underground mining water supply systems. The pressure is reduced by a fixed ratio of either 3:1 or 2:1. The valve also protects pipework by reducing surge and water hammer.
Technical Specifications • • • • • • • • •
Pressure rating: 16 bar Working pressure range: 2 –16 bar Flow range: 0 to 14 m3/Hour Body: Polypropylene PPB Seals: NBR Diaphragm: Reinforced Neoprene Available ratios: 2:1 or 3:1 Connections: 63 mm Plasson compression Optional: 2” threaded male BSP, 2” “Shouldered”
Features • • •
• • •
Stable pressure control over the full flow and pressure range Corrosion resistant plastic body and internal parts Enhanced flow design and diaphragm reduce the damage caused by abrasive solids (sand, stones) and increase service life Lightweight - for easy handling Assembled directly to PE pipe by built in Plasson compression fittings Can be installed either vertically or horizontally
The Expert Choice of Connecting PE Pipes in Mines
The most reliable mechanical fitting
the only Mechanical 160 mm solution
110-63 Line 7 connection Fully Plastic Available 1:2 1:3 Ratio
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BMG improves safety in the workplace in Zambia through the supply of PPE and welding solutions
MG has extended its integrated engineering solutions services in Zambia to include the supply and support of a comprehensive range of personal protection equipment (PPE) and advanced welding systems, designed to create a healthy, clean and safe environment. “BMG is committed to assisting businesses in Zambia improve safety in the workplace by ensuring easy access to a broad range of quality branded PPE, which is suitable for use in many sectors, including mining, agriculture, manufacturing and packaging, food and beverage plants, milling and general industry,” says Brendan Kitcat, BMG’s
Lusaka Branch Manager, Zambia. “BMG also offers an extensive range of welding products and systems, designed to protect workers’ health during metal working procedures, through the extraction and control of welding fumes. “Our welding products and services are tailored to meet specific customer requirements and include carefullyselected fume extraction products that reduce risks associated with welding and cutting fumes, grinding dust and oil mist. “We work closely with every customer to ensure the selection of the correct equipment and appropriate and safe use of each system.”
BMG’s portfolio of safety and PPE comprises complete head-to-toe solutions, including hard hats, helmets, bump caps, earplugs and earmuffs, goggles and spectacles. The range also includes general, flame and acid-proof worksuits, as well as gloves, safety shoes and gumboots. The company’s welding related products encompass source extraction, PPE, general filtration and extraction hoods and a wide range of inverter welders, electrodes, welding wire and accessories.
breakdown, repair and maintenance support, to ensure production plants are up and running as quickly as possible following a breakdown. According to BMG specialists, the introduction of a structured maintenance management programme - which can be implemented in-house, or partially outsourced to a professional organisation - is critical to maximising production efficiencies. Conditioning monitoring identifies lubrication problems, misalignment and vibration troubles and also helps in identifying the causes of the damage, so that equipment can be fixed before further damage occurs. This means reduced downtime, efficient production and substantial cost savings.
BMG’s comprehensive product range also includes bearings, seals and gaskets; power transmission; hydraulics and pneumatics; fluid technology and filtration; drives, motors and controllers; materials handling; fasteners and tools. BMG’s two branches in Zambia – in Lusaka and on the Copperbelt in Kitwe – offer a 24/7 support service for the full product range, through technically competent workshops and field service teams. Services include mobile
The BMG branch in Lusaka has recently completed a new showroom that effectively displays the company’s extensive product range.
More than expected The power clamping nut MDA from JAKOB Antriebstechnik
he current model of the mechanical power clamping nut MDA combines the simplest, manual operation at low tightening torques with the highest clamping forces. The interior can multiply the manual tightening torque by means of a robust gear transmission with special slide bearing. The self-locking mechanism guarantees maximum operational safety. A long life is ensured by the material design made of tempered steel with a corrosion-protective surface coating. Special endurance tests confirm these expectations. For example, the power clamping nuts were subjected to continuous load on a special test bench up to 10,000 load cycles.
The power clamping nuts MDA are available for thread sizes from M12 to M48 and can apply up to 180kN clamping force. The fields of application of the MDA cover all fields of mechanical engineering in which high clamping are required. For example, clamping of pressing and punching tools or workpiece clamping during machining. The MDA power clamping nut enables safer, more economical and more exact clamping. Under normal operating conditions, it is maintenance-free and can be used up to 200 ° C. In special versions, it can be used even up to 400 °C.
project to fruition. We also thank the Government of Angola for its continued support throughout the development process,” concludes Krneta. President and CEO of the MCA Group, Manuel Couto Alves, says “the project will have a huge positive impact on Angola and specifically its economy, as more people are guaranteed access to affordable and clean energy. He added that the project will significantly increase the country’s share of renewable energy.” Angola is Africa’s seventh largest nation, with approximately 30 million inhabitants and a rapidly growing economy. The initiative is being financed under the Swedish Export Credit System (the Swedish Export Credit Corporation and Swedish Export Credit Agency), which aims to raise investment in Swedish sustain-able technology globally.
Hitachi ABB Power Grids partners with consortium in Angola on Africa’s largest solar project Hitachi ABB Power Grids to supply the main electrical infrastructure for one of the largest photovol-taic projects ever developed by MCA Group and Sun Africa consortium
itachi ABB Power Grids has joined forces with Sun Africa LLC and M. Couto Alves S.A., part of the EPC conglomerate, on behalf of Angola’s Ministry of Energy and Water, to supply the main electrical infrastruc-ture to connect Sub-Saharan Africa’s largest solar project to Angola’s transmission. Hitachi ABB Power Grids’ scope of work will include the design, main power equipment supplies, testing and commissioning of the project. It is based on an in-depth grid impact study into the customer’s unique requirements to determine in advance the best way to achieve the integration of the Government of Ango-la’s renewable energy programme. The initial stage of the project will include the construction of a 188 MWp solar power plant and six other solar power plants to electrify homes in the southern African country. “This is one of the largest and most significant photovoltaic projects delivered,” says Niklas Persson, Managing Director of Hitachi ABB Power
Grids’ Grid Integration business unit. “We are contributing pioneering technology to enable MCA to integrate more renewables and electrify rural areas, while maintaining a stable network. Our role is to develop the project from idea to energisation – ultimately shaping a reliable and sus-tainable energy future for Angola.” “We are pleased to partner with Hitachi ABB Power Grids as we share its commitment to provide low-cost clean energy throughout the African continent,” comments Nikola Krneta, CEO of Sun Africa. “This is an incredible accomplishment given the ongoing financing and other challenges due to the Covid-19 pandemic. It demonstrates the dedication, capabilities and the resilience of all our partners to overcome the unique challenges together.” “We appreciate our trusted partners, such as ING Bank, SEK, EKN, DBSA and KSURE, and the support we have received from the Swedish and US governments, in helping bring this
The project supports the UN’s Sustainable Development Goal 7 – ensuring that all people have access to affordable, reliable, sustainable and modern energy for all. The initiative will also help to increase the share of renewable energy in the global energy mix.
About Hitachi ABB Power Grids Ltd. Hitachi ABB Power Grids is a global technology leader with a combined heritage of almost 250 years, employing around 36 000 people in 90 countries. Headquartered in Switzerland, the business serves utility, industry and infrastructure customers across the value chain, and emerging areas like sustainable mobility, smart cities, energy storage and data centres. With a proven track record, global footprint and unparalleled installed base, Hitachi ABB Power Grids balances social, environmental and economic values. It is commit-ted to powering good for a sustainable energy future, with pioneering and digital technologies, as the partner of choice for enabling a stronger, smarter and greener grid. https://www.hitachiabbpowergrids.com
Engineered Process Solutions
SULPHUR BURNER SYSTEM MINING INDUSTRY System Design Parameters System capacities from 1 to 100 metric tonnes per day of molten sulphur burned High strength SO2 gas (18%) generated High turndown of 6:1 or better Pressurized gas discharge to meet process demand of 100 to 300 kPa Integrated sub-gas coolers for cooled SO2 gas discharge to the process Fully modularized and transportable system Design can include solid and/or molten sulphur handling and storage system
Uses in the Mining Industry Feed for cyanide destruction Feed for generating Sulphuric Acid Feed for inhouse generation of SO2
The demand for in-house generation of sulphur dioxide is on the rise. This is due to the stringent environmental regulations being imposed for the transportation and storage of liquid SO 2 and the safety risk associated with storage of liquid SO2 on site. AHLS has the technology and expertise to support and provide your needs of a proven Sulphur Burning technology that includes all the upstream and downstream requirements plus the sulphur burner. Advantages of the AHLS system:
Wide range of design capacity available
High turndown ratio
Available as a modular system
Extensive reference list (mining and other applications)
For more information contact: email@example.com A.H. LUNDBERG SYSTEMS LIMITED® 5118 Joyce Street, Unit 300 Vancouver, BC V5R 4H1 CANADA
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Mining sustainability can be enhanced considerably by quality blasting
Digital journey in blasting supports mines’ sustainability
he quest to raise productivity on mines is relying increasingly on technological innovation and pushing the boundaries of blasting science has therefore been a priority for explosives and blasting leader BME, a member of the JSElisted Omnia group.
Mining sustainability can be enhanced considerably by quality blasting, according to D. Scott Scovira, BME’s Global Manager for Blasting Science. The company’s technology offerings apply across the blast cycle from design and planning to initiation and analysis. BME has also just launched its global on-line technical services and solutions platform, enabling explosives users to consult with experienced explosive engineering professionals.
“This service comes from BME’s inhouse technical staff, and also from other recognised third-party specialists in blasting, mining and construction – with the aim of realising the best project outcomes for the client,” said Scovira. The initial on-line consultation to discuss and scope out a blasting project is free of charge, and the service is not limited to existing BME clients. “Using our powerful BLASTMAP™ blast design software, mines can achieve optimal rock fragmentation to make their loading and comminution functions more economical,” he said. He also highlighted the value of BLASTMAP™ in understanding and managing burden relief times. A pioneer with its AXXIS™ electronic detonation systems, BME has been continuously improving this technology for greater on-mine safety and productivity. The system allows the downloading of blasthole firing times from BLASTMAP™ into the AXXIS™ Logger – for quick and reliable detonator programming. Data from the AXXIS™ Logger can be analysed after the blast to ensure that the actual initiation matched the blast design.
– to improve efficiencies in blasting and saving time and cost for customers. The system speeds up the logging process allowing on-bench logging and testing of up to 500 detonators. The integration of BME’s technology with mine-wide platforms is a vital element of supporting the mining sector’s ongoing productivity drive, said Christiaan Liebenberg, BME’s Software Product Manager. “The digital age calls for increased collaboration between technology providers for integrated solutions,” said Liebenberg. “It also means that mines and their suppliers will need to work in closer partnerships to develop and apply the systems for increasingly automated mining.” He emphasised that higher levels of business optimisation can be achieved through gathering and processing realtime data from all mining assets. “A key focus of BME’s development with digital tools for blasting operations is to leverage the value of real-time data on mines,” he said. “On the blasting side, this means integrating blast data with the mine’s digital systems.”
D. Scott Scovira, Global Manager: Blasting Science
In southern Africa, AXXIS™ has been used by the leading copper producers to initiate record-size blasts – with 7,401 electronic delay detonators (EDDs) involved in a recent record blast. The system has also been well received in mining markets like Australia, where it has initiated record blasts in the coal sector. According to Tinus Brits, BME’s Global Product Manager for AXXIS™, the latest version of the system – AXXIS TITANIUM™ – is due to be released to the global market this year. This version promises to be the most advanced electronic blast detonation system in the world, said Brits. “We are conducting final trials and evaluations in South Africa, and these have been successful so far,” he said. AXXIS TITANIUM™ boasts a unique three-in-one blasting box that can be configured as a controller, blaster and as a repeater. A larger number of boxes can be easily linked, as well as many more detonators
Atlas Copco – keeping customers
connected every digital step of the way
All the advantages of online shopping with Atlas Copco Shop Online and Parts Online
tlas Copco offers several convenient online platforms to enable customers and endusers, with the click of a button, to stay connected with their machines and equipment, access vital product information and make online purchases 24/7, enhancing product performance, efficiencies and life cycles for sustainable productivity. The Atlas Copco brand has been synonymous with quality and reliability for 147 years. The global Industrial Group has maintained this enviable reputation through ongoing R&D and an unrelenting drive to continue advancing and innovating its product, technology and service solutions. Atlas Copco has remained at the forefront of the Fourth Industrial Revolution which sees the ongoing automation of traditionally manual processes and practices using smart technology.
“4IR is concomitant with efficiencies and environmental accountability,” says Atlas Copco Power Technique Business Line Manager, Portable Products, David Stanford. “So we incorporate the latest IoT technologies into our portable generators, air compressors, light towers and pumps and continue to augment our service and after-market support with the role out of several online solutions to assist customers in expanding their efficiencies and shrinking their carbon footprint.” “Online retail shopping has seen exponential growth globally which has no doubt been further propelled by the COVID-19 pandemic and its accoutrements of lockdown levels and health and safety protocols,” notes Stanford. “But online shopping is not the exclusive domain of retail. It also plays an integral role in the industrial landscape.”
Atlas Copco Shop Online, an ecommerce platform, and Parts Online, an interactive spare parts catalogue system, are two user friendly platforms that offer customers as well as distributors all the advantages of online shopping. Going hand in hand with these platforms is Atlas Copco Power Connect. Stanford explains that with a single scan of the QR code, which appears on all Atlas Copco products, customers can obtain machine information, link directly to spare parts catalogues on Parts Online to choose their products and then transfer their selected items to Shop Online and place their order, 24/7. The QR code, located in the data plate on all Atlas Copco mobile machines, provides an excellent source of information on machine components, warranty, manufacturing date, etc. “Customers are even able to watch
Geofencing for complete control of machines as well as performance indicators or service notifications to assist customers with proactive planning of their maintenance and enable rapid response in the event of a breakdown.
Parts Online _ customers can select products from interactive spare parts catalogue system
instruction and service videos of their machine such as how to start up, perform daily maintenance, trouble shoot, etc. and they can also share their machine information on this online portal,” adds Stanford. Available on all smart devices, Power Connect conveniently provides a direct link to Atlas Copco’s Parts Online. Once customers have found the required spare parts and/or consumables for their Atlas Copco equipment on the upto-date spare parts catalogue system, they simply transfer them to Shop Online to place their order. Additional features such as pricing and availability checks, order tracking, delivery tracing and printing of picking lists add further value to Atlas Copco’s Shop Online platform.
Taking it a step further, customers are able to remotely manage their Atlas Copco machine fleet, irrespective of size, with FleetLink. By having the latest fleet information at hand, customers can optimise their fleet usage and reduce maintenance cost, ultimately saving both time and money. The FleetLink APP which can be downloaded from the Google Play and Apple Stores, provides access to information from anywhere, any time, keeping customers connected to job-sites, machines and teams. “This intelligent telematics system is all about smart fleet management,” says Stanford. Available as an option on new products or as a retrofit kit, FleetLink features
A customisable dashboard provides an easy view of vital information such as machine running status, running hours, fuel consumption, engine load, vessel pressure, air flow or power load, and service status. “What is more, customers can keep an eye on their operational expenses by setting up daily or weekly automatic reports that contain this information,” continues Stanford. A remote Function Lockout which allows customers to remotely switch off their machine in undesired periods is also available on this state-of-the-art digital monitoring tool. Atlas Copco has also introduced ‘Light The Power’, a power and light calculator APP that assists customers with generator and light tower sizing, cable sizing, modular power plants set, etc. enabling them to choose the best Atlas Copco solution for their individual needs. Stanford explains: “The APP will find the best Atlas Copco generator according to a customer’s application conditions and will also share information on noise emissions of all Atlas Copco mobile generators. Using our efficient Power Management System (PMS), customers are able to simulate a modular power plant according to their needs. If customers want to know how many cables they require, including length and size, or how many light towers they will need for a specific application and in any conditions, the APP will calculate this. The APP will also allow users to combine Atlas Copco products. For example, it will accurately calculate how many HiLight E3+ light towers can be connected to a portable generator.” Wrapping up Stanford says, “It is all about keeping our customers connected and making it as convenient as possible for them. “We build lasting customer partnerships; when they invest in our products, they acquire a complete solution – superior quality products and state-of-the-art technology supported by outstanding after-sales service and convenient, value adding online digital platforms. We stay with them every step of the way.”
Customer can scan a QR code to obtain information on Atlas Copco machines
SUSTAINABLE SOLUTIONS FOR PROFITABLE MINING TOMRA’s sensor-based ore sorting solutions deliver proven improvements in recovery and profitability in a wide variety of mining operations, including tin, gold, lithium, diamonds, quartz, chromite, tungsten and phosphate. They maximize efficiency, precision and speed, capturing even the smallest particle sizes with technologies that include Color, Near-Infrared (NIR), X-Ray Transmission (XRT), Electromagnetic and Laser sensors. Energy-efficient, cost-effective, green mining.
Vivo Energy success story: Sustainable and cost-effective energy solutions at Africa’s mines
fter a most successful introductory year at the Mining Indaba last year, Vivo Energy returns with a success story around power generation for mines on the continent. Vivo Energy, which sells and distributes Shell and Engen branded fuels and lubricants in Africa, believes it will be able to transform how energy is supplied to mines across the continent. The company announced in October last year that it had reached an agreement to supply Canadian mining company Robex Resources’ Nampala gold mine, in Mali, with a hybrid fuel and solar energy solution for a period of five to fifteen years.
DOC_I_SRBZZ_AP1_GBa - NTN-SNR © 12/2019 - Photos: NTN-SNR / PEDRO STUDIO PHOTO / SHUTTERSTOCK -
Alistair Jessop, Head of Power Vivo Energy said: “We are innovating in the renewable energy sector, bringing exciting commercial solutions to our customers. Vivo Energy plans to build
we faced last year. What makes Vivo Energy different for its customers is the resilience we showed in 2020. That was a testament to our flat organisational structure. We were able to react quicker than most and put those decisions into action on the ground.” says Alex Caldwell, Head of Mining for Vivo Energy. on balance sheet hybrid solar solutions, engineered to the mines’ requirements. The Mali project saves the mine $4/MWh and will displace over 60,000 tonnes of CO2 over the next10 years.” Jessop added: “Vivo Energy will expedite the provision of energy solutions, while minimising the impact on the mines’ balance sheet and at the same time reducing the mines’ cost of production and carbon footprint.” “I think 2020 was a year of real challenge for all of us. Nothing comes close to what
“Vivo Energy’s experience in working with mines over many years is reflected in its innovative competitive power purchase agreement, aimed at meeting the mines’ needs and time scales, allowing the mines to focus on their core business.” concluded Alistair Jessop Head of Power Vivo Energy. Vivo Energy will use this pioneer project to spur further uptake of such projects in Africa to help mining operations reduce their costs and carbon dioxide emissions.
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World’s Leading Power Supplier Helping Miners with Emission Targets
ggreko, the world’s leader in mobile, modular power has committed to net zero emissions by 2050 and is partnering with the world’s biggest miners to use greener energy like solar, wind and natural gas. The company has vowed to invest AU$450 - $600 million (£250 million £350 million) each year to support its energy transition, including big spends in what it sees as a major growth area for its business: mining. Aggreko Australia Pacific Managing Director George Whyte said environmental responsibility and new technology are changing the way electricity is generated, distributed, consumed, stored, and monitored. Mr Whyte said the company had already invested heavily in the sector in the past three years as miners requested alternatives to fossil diesel.
“Miners have the great challenge of reducing their emissions in line with the Paris Agreement, as well as their own commitments to net-zero emission targets by 2030 and 2050,” Mr Whyte said. Power generation for our customers has become more complex, and Aggreko has a responsibility to create power that is healthier for the world’s wellbeing. Miners – and increasingly those with unreliable or no access to grid power – are partnering with Aggreko to provide hybrid power solutions on site, which might include an energy mix of diesel, gas, solar, wind and battery storage. Power can be switched to another source and scaled up or down, depending on the renewable power available and the operation’s daily requirements.
“I believe that in the future we will see more miners partnering with power providers who are able to provide highly efficient, but also low-carbon solutions like Aggreko,” Mr Whyte said. It is a de-risking strategy for miners, helping them to reduce their capital costs, while lowering their emissions. Instead of miners having to specialise in power solutions, Aggreko invests in the capital, remotely monitors it, and provides the maintenance and all of the technological upgrades along the way. “They don’t then have the fear that power capital they invest in will be obsolete in five years’ time.” Mr Whyte said global economic growth was driving the mining sector’s growth. “Just 30 years from now – in 2050 – increasing electrification and the growing
world population means global electricity demand is expected to rise by 70%. This means the need for flexible, reliable and integrated solutions with lower carbon and local emissions has never been greater, and our market for temporary, distributed energy is growing,” he said. Of the 80 countries in which Aggreko has a large presence, most of the hybrid power solutions it is delivering to mining sites are located across Australia, Africa, North America, Canada, Latin America, Africa, and South East Asia. Rod Saffy, Aggreko’s Global Head of Mining, said while the mining industry is looking for economic, reliable, and available alternatives to fossil diesel, it would be a phased approach. “Miners are interested in hybrid projects that utilise solar and battery storage and are looking to us to become their independent power provider for the life of their projects,” Mr Saffy said. Currently internal combustion engines (ICE) running diesel and natural gas are the baseline for temporary power generation. A trend towards natural gas
means more virtual pipelines are being utilised where gas – both LNG and CNG – is trucked from a pipeline take-off point to the mine site, where distances are less than 1000km. Hydrogen as a fuel source also plays an important role in Aggreko’s future decarbonisation strategy; particularly green hydrogen, where electrolysis is powered by renewable energy. “We are currently investing in pilot projects to
understand its potential and limitations as a fuel for our customers,” Mr Saffy said. “We are also exploring how we can integrate green hydrogen into our fleet, and how we can combine it with renewables and battery storage to build efficient and resilient hybrid systems, which simultaneously help our customers to achieve their sustainability goals.”
ADVERTISER’S INDEX African Gems.........................................................................................................................29 Agru.............................................................................................................................................07 AH Lundberg Systems......................................................................................................27 Ambra Solutions....................................................................................................................09 BAUMA Africa ...................................................................................................................IFC Derrick.....................................................................................................................................IBC DRC Mining Week ..............................................................................................................13 Junipers.....................................................................................................................................31
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FMDZ is a bi-monthly magazine for mining industry incorporating, exploration, oil, power, drilling and other large scale extraction, storage, transport, Market and utilisation of Africa’s Copper Belt wealth and resources. First Mining DRC-ZAMBIA is published 6 times per annum: Jan/Feb, Mar/Apr, May/Jun, Jul/Aug Sept/Oct and Nov/Dec.
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Introducing the SuperStack® Wet Sizing Screen Up to 3X the capacity of the 5-Deck Stack Sizer® Derrick® has once again redefined high capacity, fine particle wet screening with the introduction of the SuperStack®. With 8 decks operating in parallel and a 35% increase in the effective width of each deck, the SuperStack has a demonstrated capacity equivalent to 2½ to 3 times that of its precursor, the 5-Deck Stack Sizer®. All this added capacity comes with only a slight increase in the space required per machine, significantly reducing CAPEX and OPEX for any screening installation. Offering high productivity, low operating and maintenance costs, convenient serviceability and durability, the SuperStack is built to last and backed by a worldwide support team available 24/7.
2021 Virtual Mining Indaba,COVID-19, Drc-Mining ,Zambian court denies Vedanta attempt to halt Konkola Copper Mines split,Ivanhoe posts anoth...
Published on Feb 8, 2021
2021 Virtual Mining Indaba,COVID-19, Drc-Mining ,Zambian court denies Vedanta attempt to halt Konkola Copper Mines split,Ivanhoe posts anoth...