Bulk Handling Today May 2018

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BULK

HANDLING

Copyright

All rights reserved. No editorial matter published in “Bulk Handling Today” may be reproduced in any form or language without written permission of the publishers. While every effort is made to ensure accurate reproduction, the editor, authors, publishers and their employees or agents shall not be responsible or in any way liable for any errors, omissions or inaccuracies in the publication, whether arising from negligence or otherwise or for any consequences arising therefrom. The inclusion or exclusion of any product does not mean that the publisher or editorial board advocates or rejects its use either generally or in any particular field or fields.

Our e-mail address is bulkhandling@promech.co.za Visit our website on www.bulkhandlingtoday.co.za

T O D A Y

The monthly circulation is 3 673

Proprietor and Publisher: PROMECH PUBLISHING Tel: (011) 781-1401, Fax: (011) 781-1403 E-mail: bulkhandling@promech.co.za www.promech.co.za Managing Editor: Susan Custers Chief Editor: Danette Capper Advertising Sales: Linda Patricio DTP: Anne Rotteglia Subscriptions: Please email us at accounts@promech.co.za if you wish to subscribe to “Bulk Handling Today” at R550,00 (excl postage and VAT) per year; R1 380,00 per year for Africa/Overseas.

Printed by: Typo Colour Printing, Tel: (011) 402-3468 FSC (Forestry Stewardship Accreditation)

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Membership at May 2018 All members subscribe to the CMA Code of Ethics ABB Industry Acrow Limited Actom Afripp Projects Altra Industrial Motion South Africa (Pty) Ltd Bauer Bearings International Belt Brokers Belting Supply Services BMG Bonfiglioli Power Transmissions Bosworth Brelko Conveyor Products CedoTech cc Closeal Manufacturing Collisen Engineering ContiTech South Africa (Pty) Ltd Conveyor & Engineering Equipment CPM Engineering CT Systems David Brown Gear Industries

DRA Projects SA (Pty) Ltd Dunlop Belting Products Dymot Engineering Company ELB Engineering Services Fenner Conveyor Belting (South Africa) Flexco SA (Pty) Ltd FLSmidth Roymec Habasit South Africa (Pty) Ltd Hägglunds Drives South Africa Hatch Africa (Pty) Ltd Hosch - Fördertechnik (SA) International Belting & Marketing (Pty) Ltd Iptron Technology KevConBelt (Pty) Ltd Lesa Mining Equipment and Conveyor Belt Lorbrand Martin Engineering Megaroller Melco Conveyor Equipment Moret Mining Nepean Conveyors OE Bearings Oriental Rubber Industries SA

Osborn Engineered Products Pegasus Industrial Services cc Protea Conveyors Regal Beloit South Africa Rema Tip Top South Africa Ringspann South Africa Rossi Gearmotors (Pty) Ltd Rula Bulk Materials Handling Schaeffler South Africa SENET SEW Eurodrive Shaft Engineering (Pty) Ltd SKF South Africa Tenova Takraf ThyssenKrupp Industrial Solutions South Africa (Pty) Ltd Timken South Africa (Pty) Ltd Transvaal Rubber Company Voith Turbo Weba South Africa (Pty) Ltd WorleyParsons RSA Zest Electric Motors

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"There are numerous contractors and machines competing for limited space and limited windows in which to access the site.�

“Our sub-contractors and employees are trained and empowered to stop work and correct a problem before it develops into a major incident.�

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A simple solution to a complex problem

Recovery of mineral commodities is a complex challenge. Discover how we can help you find simple solutions and achieve sustainable productivity enhancements. flsmidthminerals.com South Africa Tel: +27 (0)10 210 4000 E-mail: flsm-za@flsmidth.com

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The South African Institute of Materials Handling

Sample

The South African Institute of Materials Handling (SAIMH) is a Non-Profit organisation set up with an objective to encourage the transfer of knowledge associated within the fields of Bulk Materials Handling (conveyors, stacker, reclaimers, tipplers, train loading systems, etc.) through a combination of seminars and networking sessions.

The SAIMH is made up of professional engineers, each practising their trade in a variety of organisations who volunteer their time to execute the SAIMH’s objective. The main aim is thus to promote the advancement of the art, science, theory and practice of the Bulk Materials Handling principles and techniques.

Company Affliates as at May 2017 Afripp Projects cc Brelko Conveyor Products (Pty) Ltd Bulkcon CPM Engineering CT Systems cc Conveyor Watch (Pty) Ltd David Brown Gear lndustries (Pty) Ltd ELB Engineering Services (Pty) Ltd Engicon Systems (Pty) Ltd Facet Engineering cc Flexco (SA) (Pty) Ltd

Hagglunds Drives SA (Pty) Ltd Hansen Transmissions SA (Pty) Ltd Hatch Goba (Pty) Ltd lllustech J & A Engineering Services Kimrae Engineering Prolects Loadtech Load Cells (Pty) Ltd MacsteelVRN Martin Engineering Melco Conveyor Equipment Morris Material Handling SA (Pty) Ltd

Osborn Engineered Products (Pty)Ltd PD Engineering Services cc PH Projects Holdings (Pty) Ltd Rio Carb (Pty) Ltd Sandvik Materials Handling Africa Screw Conveyors & Material Handling Senet SEW Eurodrive Spar Western Cape SSAB South Africa (Pty) Ltd Tenova Zest Electric Motors (Pty) Ltd

10 (011) BULK HANDLING 2018867-0036  Email: saimh@global.co.za  www.saimh.co.za Tel: 867-0902TODAY  Fax:May (011)

Advantages include a considerable reduction in the drive system’s footprint so it can be installed in smaller spaces, less weight, and a reduction in the instrumentation required to operate the system

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Committed to the Future Kawasaki 115 ZV

www.elbequipment.com

ELB EQUIPMENT HEAD OFFICE: +27 (0)11 306 0700 Elb@elbquip.co.za

BRANCHES & DEALERS SOUTH AFRICA: BRITS • CAPE TOWN • DURBAN EAST LONDON • GEORGE KIMBERLEY • MIDDELBURG POLOKWANE

DEALERS – SOUTHERN AFRICA: BOTSWANA • LESOTHO MOZAMBIQUE • NAMIBIA •SWAZILAND • ZAMBIA ZIMBABWE

Distribution and Product Support

ENDORSER OF “BULK HANDLING TODAY”

LIFTING EQUIPMENT ENGINEERING ASSOCIATION OF SA

• A recognised ECSA Voluntary Association (VA) •

LEEASA is a fully-fledged association devoted to the lifting industry across Southern Africa. Members hale from the crane, forklift, mobile elevated work platform, aerial and suspended access platform, chain hoists, rigging and lifting tackle arenas, etc. Primarily devoted to the LMI’s (Lifting Machinery Inspectors), and LME’s (Lifting Machinery Entities), the association considers safety paramount. As such it serves in an advisory capacity to the SABS, the Department of Labour, various training bodies and the industry at large. LEEASA is recognised by ECSA as a voluntary association.

What’s in it for you:

As an Individual member who is registered as a Lifting Machinery Inspector (LMI), you may qualify for any concessionary fee granted by ECSA (this could save you over R1 000 a year).

and other training courses accredited by the association attract ECSA CPD points.

ECSA registered LEEASA members are awarded one Continuing Professional Development (CPD) credit each year. CPD is an ECSA requirement to retain registration.

Members benefit from the collective power of a recognised and established association and collective co-ordination in dealing with authorities in policy making and matters concerning the industry.

Members obtain a discount on LEEASA seminars. Both these

LEEASA has some 650 members (Individuals and Companies).

• • •

LEEASA Occupational Health & Safety Act and Regulations LEEASA Mine Health & Safety Act and Regulations LEEASA Lifting Equipment Inspection & Legal Compliance Register

Available for purchase online at www.leeasa.co.za

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LIFTING EQUIPMENT ENGINEERING ASSOCIATION OF SOUTH AFRICA Head Office: 8 Boris Road, Bordeaux, Randburg, Johannesburg Tel: 074 900 8378 • www.leeasa.co.za Secretary: Arni Sommer • email: arni@leeasa.co.za

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February 2012

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Plant audits and evaluation services improve customers' plant operations and performance

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BELTCON 19

Ludger Overmeyer

Patrick Heitzmann

Figure 1. Textile belt splice:finger splice (left) and step splice (right)

Figure 2. Required data for FEA-model of textile belt splice

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Figure 3. Theoretical strain behaviour of a one-step splice according to Oehmen

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BELTCON 19

Figure 4. Geometry of a finger splice

Figure 5. Theoretical strain behaviour of a finger splice and variation of the total cross- section A of the tension members

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BELTCON 19

Figure 6. Setup of FEA-model for textile belt splices

Figure 7. Simulated strain behaviour of FEA-model for a one-step splice

Figure 8. Results of parameter studies on varying step splice length of a one-step splice

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BELTCON 19

Figure 9. Simulated strain in finger splices using FEA

Figure 10. Simulated strain in finger splices

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Table 1. Parameter studies on variation of finger length

Table 2. Parameter studies on variation of pull-back

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BELTCON 19

Figure 11. Parameter studies on variation of finger length

Figure 12. Parameter studies on variation of pull-back

Figure 13. Strain behaviour of a finger splice in relation to a varying finger length (left) and pull-back (right)

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ABSOLUTE MATERIAL FLOW CONTROL

CHUTE SYSTEMS & SOLUTIONS • Optimum material flow • Up to 80% decrease in material degradation

• Reduced dust and noise levels • Virtually maintenance free

• Greatly reduced spillage • Significant reduction in belt damage

Tel: +27 (0) 11 827-9372 email: info@webachutes.com

www.webachutes.com

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Communication vital

Good communication is vital, so that everyone is clear on the strategy and their roles in meeting daily production targets. Managed well, the regular morning meeting can be a powerful tool allowing progress to be tracked through role players reporting back. “In this forum, changes to the production plan can be easily shared and discussed,” Werner explains.

It is important that communication methods should be practical and timeous. This means a judicious balance of verbal and written communication. The message must also reach all parties involved, so communicators must ensure that everyone has access to optimal communication tools.

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Trusted role players

Secondly, the project must have trusted role players who have been vetted and selected based on their ability to finish work within the allocated timeframe, and have the experience to conduct work effectively.

“All teams on a project must also function well with others from different contractors, without causing unnecessary conflict or problems,” Werner expands. “Such problems can cost time and money.”

Werner Cloete, SPH Kundalila group commercial officer

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For ease of maintenance, both sides of the cranes are fitted with a walkway running along the entire span

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