MechChem Africa August 2019

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Asset, maintenance and risk management 8 Turbine drive train and generator overhauls showcase local capacity Marthinusen & Coutts,a division ofACTOM,has successfully completed overhauls on a 70 MVA generator set for South 32’s Metalloys – within six weeks – and a major repair at Eskom’s Ingula pumped storage hydro-electric plant. 10 Nuts of the threaded variety 12 Improving asset value maturity with reliability engineering 13 Wheel slogging and slogging hammers locally upgraded 14 RFI earns Bosch Service Centre of the Year 15 Preventative maintenance: the key to sustainability Materials handling 16 Fast track solution to DRDGOLD tailings recovery project Tyrone Willemse of WEG Automation Africa and Stuart Brown of WEG Transformers talk about the commissioning of a containerised substation and control room for DRDGOLD’s Far West Gold Recoveries Project. 17 Improved chairlift safety and ergonomic comfort 19 FLSmidth’s FerroCer panels bring longer wear life to Africa 20 Mines convert to Warman froth pumps 23 Market benefits from stronger Weba – Brelko link Corrosion and coatings 24 World class lab at CHRYSO providing solutions Upgrading its Jet Park laboratory has given CHRYSO Southern Africa the capacity to expand its solutions to customers in fields including aggregates, concrete aesthetics and cement. 25 Effective bridge preservation with MCI surface protection Heating, cooling, ventilation and air conditioning 26 York technology powers Omnia innovation Johnson Controls’ Sabroe compressors are powering the custom-build ammonia chiller plant at Omnia’s new nitro-phosphate (NP) plant in Sasolburg. 27 Data centres can be efficient and green Water and wastewater processing 28 UJ Mobile lab to combat disease outbreaks UJ’s Health Science faculty has come up with mobile solution for on-site testing of potentially contaminated water sources in remote and difficult to reach areas. 31 What the sewage sludge treatment plant of the future looks like 32 Water resilience expertise for drought-plagued SA 33 GraviFilter chooses MOVIDRIVE Innovative engineering 38 Robotic solutions for the hospital of the future ABB is to install advanced collaborative robotics systems for the new non-surgical medical facility at Texas Medical Center’s innovation campus. REGULARS 2 Comment: Reliability, skills and long-term thinking 4 Mixtec: 35 years of continuous improvement Rudi Swanepoel presents the case for the company being amongst the world’s premier manufacturers of agitation technologies. 6 SAIChE News: Renewing and upscaling SA’s nanomaterials initiatives 34 Product and industry news 40 Back page: Carbon fibre from algae

P U B L I C A T I O N S CR O WN

Published monthly by Crown Publications (Pty) Ltd Cnr Theunis and Sovereign Streets Bedford Gardens 2007 PO Box 140, Bedfordview, 2008 Tel: +27 11 622 4770 e-mail: mechchemafrica@crown.co.za www.mechchemafricamagazine.co.za Editor: Peter Middleton e-mail: peterm@crown.co.za Assistant editor: Phila Mzamo e-mail: philam@crown.co.za Advertising: Brenda Karathanasis e-mail: brendak@crown.co.za Design: Darryl James Publisher: Karen Grant Deputy publisher: Wilhelm du Plessis Circulation: Brenda Grossmann The views expressed in this journal are not necessarily those of the publisher or the editors. P U B L I C A T I O N S CR O WN P U B L I C A T I O N S CR O WN 2015/02/10 01:17:09PM

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Transparency You Can See Average circulation January-March 2019: 5 168 Printed by: Tandym Print, Cape Town

Front cover: Mixtec Contact: Selina Narainsamy +27 11 974 7161 SNarainsamy@mixtec.com www.mixtec.com

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August 2019 • MechChem Africa ¦ 1