MechChem Africa December 2018

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Pump systems, pipes, valves and seals 8 Using pumps to generate electricity

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

A forward-thinking municipal technical team serving the requirements of the Drakenstein Municipality (Wellington) in the Western Cape has designed one of the country’s largest pump and turbine stations, which will be used for pumping water to the nearby town of Paarl during dry periods and to generate electricity for the city during the remainder of the year. 11 New levels of hydraulic efficiency in slurry applications 12 Mill circuit pumps reduce operating costs Local manufacturing and food processing 14 Mega train manufacturing ramps up in Dunnottar On Thursday, 25 October 2018, South African President Cyril Ramaphosa officially opened Gibela’s train manufacturing plant in Dunnottar, east of Gauteng. MechChem Africa talks to systems integrator, David Blackwood of DESign about the modern systems installed to ensure high integrity fabrication. 16 Steel processor extends stretcher leveller capacity 17 MAP, poultry and the cold food chain Power generation, sustainable energy and energy management 18 Integrated solutions key to growing Africa’s power generation As African countries work to develop their power generation capacity in the most cost effective ways, the key will be to find integrated solutions that attract investment throughout the value chain, argues Alastair Gerrard, Integrated Solutions executive at Zest WEG Group. 20 Key to a sustainable future: advanced water electrolysis Extensive tests performed at the National Engineering Laboratory’s (NEL) flow test facility in Glasgow, UK, have confirmed that thermowells with a ScrutonWell ® design have no tendency to vibrate. Kai Grabenauer, product manager for WIKA’s electrical temperature measurement business in Europe, presents the findings and the principles underpinning the ScrutonWell design. 25 The uprising – a natural gas movement Environmental management and cleaning technologies 26 Collective accountability to clean up SA Kate Stubbs, director of business development and marketing at Interwaste, summarises the current status quo with respect to waste management and urges all stakeholders – Government, corporate South Africa and individual citizens – to play a more proactive role in reducing waste-to-landfill and to put more effort into recycling. Innovative engineering 30 GE announces industrial scale additive manufacturing system GE Additive has announced that its first Concept Laser M-Line Factory systems for industrial scale additive manufacturing will be delivered to customers during the second quarter of 2019. REGULARS 21 Renewable energy projects on home ground Chemical, petrochemical, oil and gas 22 Endurance test for vortex breakers

Published monthly by Crown Publications cc 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 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 July-September 2018: 5 027

Printed by: Tandym Print, Cape Town

Front cover: Mixtec South Africa info@mixtec.com www.mixtec.com

2 Comment: An inhospitable earth or urgent green spending? 4 Cover story: Mixtec: SA’s agitation and suspension expert. MechChem Africa talks Rudi Swanepoel about the company’s innovative EDICT agitation systems. 6 SAIChE iCHEMe: Member Group News 28 Product and industry news 32 Back page: Robot welder unveiled at SAIW

December 2018 • MechChem Africa ¦ 1