Sme final apr14 pdf

S MECHANICAL A ENGINEER April 2014

Publication of the SA Institution of Mechanical Engineering, Incorporating News of Associate Organisations

l These Boots Were Made for Walking l l Cutting Lube Costs l THE SOUTH AFRICAN MECHANICAL ENGINEER

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Excellent Minerals Solutions

WARMAN® Centrifugal Slurry Pumps ENVIROTECH® Centrifugal Slurry Pumps ISOGATE® Slurry Valves Lower your operational costs with the Weir Minerals Solution In slurry and dewatering pumping, processing and control applications where the cost of ownership often outweighs capital cost as a priority, we help our customers address such issues as longevity, capacity, efficiency of operation and maintenance.

Warman® slurry and Envirotech® dewatering pumps are among the world’s most comprehensive range of pumps for use in mining, chemical and industrial applications. These pumps are designed for ultra heavy duty applications such as mill discharge, process plant and tailings, high pressure pipelines, as well as other speciality applications.

Expertise where it counts

Robust design and rugged heavy-duty construction, the Isogate® slurry knife gate valve is designed for long life and high reliability.

The Isogate® valve range now also includes Autoball™ 3 way check valves, swing check valves, and a diverse range of mechanical and pneumatic pinch valves.

Copyright ©2012, Weir Minerals Africa (Pty) Ltd. All rights reserved.

WARMAN is a registered trademark of Weir Minerals Australia Ltd and Weir Group African IP Ltd; ISOGATE is a registered trademark of Weir do Brasil Ltda; AUTOBALL is a trademark of Weir Minerals Australia Ltd.

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For more information contact us on: +27 (0)11 9292600 www.weirminerals.com

Chris Reay

Chairman of the Working Committee: Communications (SA Institution of Mechanical Engineering)

Vaughan Rimbault, CEO of SAIMechE

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S MECHANICAL A ENGINEER April 2014

Publication of the SA Institution of Mechanical Engineering, Incorporating News of Associate Organisations

Bell Equipment

The monthly circulation is 3 947

l These Boots Were Made for Walking l l Cutting Lube Costs l

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SAIMechE Scheduled Training Workshops Programmes and Registration Forms obtainable from Carey Evans, Tel: 031 764 7136 or Email: carey@saimeche.org.za Code

Event Title

Start Date

Region

C0814

Leapfrog Stubborn Problems with Technology Evolution

6 May 13

Cape Town

H1014

Hoshin Kanri Strategy 13 May 14 Rivonia Planning

E8714 Engineering Contracts 14 May 14 East Rand E6514 Overview of Fans & Air Handling A1014

14 May 14 East Rand

Hoshin Kanri Strategy 20 May 14 Durban Planning

E8414 Surface Engineering 21 May 14 East Rand of Components

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H7814

Project Risk Management

C1014

Hoshin Kanri Strategy 27 May 14 Cape Town Planning

H8714

Engineering Contracts 28 May 14 Rivonia

April 2014

21 May 14 Rivonia

Prof Détlev Kröger

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Wayne de Mello Koch of Amandla Pumps

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One of the five 4 000 litre per second APE superpumps

Pump station at Walker’s Ferry

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A split-case pump under test

Vertical turbine pumps

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Academic

Izak van Niekerk

Career Path

Projects

Commentary Achievements

HAVASWW-D63104/E

WHEN WE SAY WE SHARE OUR SUCCESS, WE MEAN IT. PPS SHARES 100% OF ITS PROFITS WITH MEMBERS*. ALL R4.2 BILLION. Visit www.pps.co.za to view the increase in your PPS Profit-Share Account.

THE KEY TO SUCCESS LIES IN SHARING IT Consult a PPS product-accredited financial adviser or visit www.pps.co.za PPS is an authorised Financial Services Provider. * PPS members with qualifying products share all the profits of PPS.

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► EIA Process

► Environmental Risk Assessments

► Geographical Information Systems

► Agricultural Assessment and Advise

► Project Managment

► Wetland and Riparian Services

► Natural Resource Services

► Visual Impact Assessments

► Ecological/Biodiversity Services

► Public Participation Process

► Application Assistance

► Game Ranch Management

► Developement Research, Monitoring and Evaluation

N2 Mnini ECO Duties

Plant rescue

Durban Coal Terminal Site Inspection

Ohlanga Pump station ECO Duties

Freightpak Warehouse Site Audit

Public participation Makhabeleni

Ballito Interchange Botanical survey

Site assessment Sundumbili pipeline

l Tel: (031) 303-2835 l Fax: 086 692 2547 l l Email: info@afzelia.co.za l www.afzelia.co.za l

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April 2014 Skills on Site

Septmeber 2012

1

Kiewiet van der Westhuizen, lubricant sales manager at Chem Systems

Application of the lubricant in a cement manufacturing plant

Girth gear Pinion bearing

Lubricant supply line Gear guards Minimum leakage

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Greases and lubrication products are formulated to outperform anything on the market

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The damage to the race, with and without XPL+ grease

Bosch Rexroth is renowned as the benchmark company for drive and control technology worldwide.

Reliable, quality

and innovative fluid management solutions

Specialists in fluid management solutions, Hytec Fluid Technology offers cost-effective, customised filtration solutions with extensive facilities, technical expertise and excellent services.

Our comprehensive product range includes accumulators; compact-hydraulics; process, mobile and hydraulic filtration; cooling systems; oil services; as well as decontamination and exclusive fluid maintenance equipment.

We are distributors of leading international brands such as Bosch Rexroth, Baldwin, Fleetguard, Hy-Pro, Stauff, ASA Hydraulik, Olaer, Settima and BĹąhler.

The TOTAL filtration and fluid CONTROL specialists Hytec Fluid Technology Tel: (011) 976 7300 Web: www.hytecgroup.co.za E-mail: info@hft.co.za

A Member of the Hytec Group of Companies

71767 HFT A5 Ad_SAME.indd 1

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2014/04/02 2:19 PM

April 2014

As they say, seeing is definitely believing

A Well Recognized Distributor in South Africa for Quality Castings from China, 17 Years Experience in the Engineering and Mining Industries • Casting bodies and components for valves and pumps • Couplings, End rings, Adaptors and Flanges for pipe systems • Mill Liners for metallurgical plants in the mining industries • Bowls, Mantles and Jaw plates for crushing and palletizing plants • Machined and hardened Gears for power transmission • Wear components for scrapers • Furnace Ladles for smelting furnaces • Forged steel grinding balls and High chrome grinding balls • SS316 and SS304 Stainless steel investment castings • Material standard to SANS 936, SANS 407, SANS 1465, BS EN 12513 (BS4844), SANS 1338

GOOD METALS CORPORATION TEL: +27 11 455-1085, 455-1086 FAX: +27 11 455-3495 www.goodmetals.co.za

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POWER

GENERATION

T O D A Y

PROMECH PUBLISHING Tel: (011) 781-1401 Fax: (011) 781-1403 Email: samecheng@promech.co.za Website: www.promech.co.za Managing Editor: Susan Custers Editorial: Kowie Hamman Advertising: Mark Bennett Circulation: Catherine Macdiva DTP:

Zinobia Docrat/ Jacquelene Nene

Disclaimer PROMECH Publishing does not take responsibility for the opinions expressed by individuals.

Copyright

From left to right: Prof Robbie Lindsay, HOD of The Physics Department; Prof Michael DaviesColeman, Dean of the Faculty of Natural Sciences; Prof Serge Haroche, the 2013 Nobel Physics Laureate; and Prof Ramesh Bharuthram, Deputy Vice-Chancellor: Academic at UWC

TICKER TAPE

All rights reserved. No editorial matter published in “Power Generation 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.

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TICKER TAPE

Professor Haroche was awarded the 2012 Nobel Prize for Physics jointly with David J Wineland for “ground-breaking experimental methods that enable measuring and manipulation of individual quantum systems”.

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Traffic generates vast amounts of kinetic energy

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The right clothes blend the hunter into the bush

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THEGRASSOV-SERIESCOMPRESSORS Reduced Total Cost of Ownership •

Reduced power consumption due to improved COP

•

Increased service intervals

•

Minimum maintenance costs due to onboard Grasso Maintenance Monitor

•

Extremely low oil carry over

•

Improved cost per kW ratio

•

Simple installation of packages, no water cooling required

Maximum Reliability & Ease of Maintenance •

Proven composite material valves for increased maximum operating hours

•

O-ring seals, no scraping or polishing required

•

50% less fixing bolts all over compressor housing

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Supplied standard with heavy duty thrust bearing

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Continuous monitoring of discharge temperature per cylinder via Thermo Master option

GEA Refrigeration Africa (Pty) Ltd

19 Chain Avenue, Montague Gardens, 7441, RSA P.O.Box 36815, Chempet, 7442, RSA Phone: +27 21 555 9000, Fax: +27 21 551 4036 industrial@gea.com, www.gearefrigeration.co.za

GEA Refrigeration Technologies engineering for a better world THE SOUTH AFRICAN MECHANICAL ENGINEER

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David Beard

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Figure 1: Decrease in Boiling Point with increasing Water Content for DOT3 and DOT4

Figure 2: FMVSS Specs for DOT fluids. ERBP is Equilibrium Reflux Boiling Point

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V13812

The Xpernomics report shows history and forecast of stock optimisation graphically

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Your business doesn’t have to become an unfortunate ERP statistic

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Register Now!

manufacturing indaba

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MARKET FORUM

Ceramic tiles offer the optimum area for resistance against abrasion and impact

Impact Panels In-depth research into the optimal design of their panels, coupled with extensive feedback from its customers, has led Multotec to incorporate modifications that enhance their impact resistance.

According to Stephen Jackson, marketing manager of Multotec Wear Linings, the impact-resistant ceramic shape of the block or tile itself is just as important as the high alumina ceramic formulation used. The tiles are not only shaped to provide the optimum working area for resistance against abrasion and impact, but they are also engineered to obtain a mechanical attachment to the poly-

urethane and to prevent shearing of the polyurethane bed.

“The advantages to our customers in the hard rock mining sector are apparent in the increased lifespan of the ceramic impact panels. We can cite many examples where our panels have achieved a lifespan of five years compared with the six months generally achieved by steel liners in the same application.

The economics are apparent – Multotec Ceramic Impact Panels achieve at least ten times the lifespan,” he concludes.

Multotec Group Bernadette Wilson Tel : (011) 923-6193 Email: bernadettew@multotec.com www.multotec.com

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MARKET FORUM

Rene Rose

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A selection of slurry pumps awaiting despatch

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MARKET FORUM

Zip Chain BMG’s range of mechanical power cylinders includes eco-friendly Tsubaki Zip Chain actuators, which are linear actuators that utilise the world’s first zip chain.

When they withdraw and uncouple, they coil back compactly into plastic storage cases. This design offers significant space savings compared with conventional linear actuator mechanisms.

“These compact actuators, which have been designed for high-speed, highfrequency operation, use about a 30th of the energy of equivalent hydraulic actuators,” says Carlo Beukes, BMG’s power transmission product manager.

“Tsubaki actuators, with a multi-point stopping capability and a multi-level position setting for easy position control, ensure increased productivity and reduced energy usage in diverse industries, including industrial and manufacturing applications.

This means this system can be installed in the most cramped spaces in applications including transfer and lifting equipment. Another advantage is the option of various installation options - these units can be positioned vertically, horizontal or hanging.

Zip Chain actuators are used in any application requiring linear actuation, including production lines for automobiles, semi-conductors and LCDs.

BMG, Carlo Beukes Tel: (031) 576-6200 carlob@bmgworld.net www.bmgworld.net

This (ZCA) encompasses two lengths of chain that lock together like a zipper, to form a single rigid column which is capable of pushing and pulling.

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MARKET FORUM

MAN ITEMS Y BE OFF CAN ER FROM ED STOCK

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MARKET FORUM

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MARKET FORUM

Daphne Mashile-Nkosi, executive chairperson of Kalagadi Manganese

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CMY

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Richard Rudling

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Etienne Minaar

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BENDING AND FABRICATION S !

LIMITATIONS LIFTED H NEW S A FL COUNTRY WIDE!

REDUCE FABRICATION COSTS AND IMPROVE ENGINEERING DESIGN BY UTILISING OUR NEW 12 METRE X 2 000 TON PRESS BRAKE We bend mild steels up to 25mm over 12 000mm We bend Q & T steels up to 22mm over 12 000mm We bend stainless steels up to 20mm over 12 000mm

WE CAN BEND MUCH THICKER OVER SHORTER LENGTHS. Please call to enquire.

• We also cut (Laser, Plasma, Flame) up to13 000mm long & 3 000mm wide • We now roll up to 50mm over 3 000mm (much thicker over shorter lengths) • We carry a comprehensive range of stock in ferrous and non-ferrous metals • Contact our sales team to discuss your individual requirements • Please visit our website for full details • Trade buyers are welcome • We deliver

PEOPLE WORTH KNOWING

CONTACT US +27 11 062 3200 • www.generalprofiling.co.za • sales@generalprofiling.co.za THE SOUTH AFRICAN MECHANICAL ENGINEER

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