MechChem Africa March-April 2022

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CONTENTS Water, wastewater and pumping solutions 6

Pumping systems 101: Advantages and pitfalls of VSDs TAS Online pump expert, Harry Rosen explains the scenarios where variable speed drives (VSDs) are an excellent choice for realising substantial energy saving and those where a VSD will not improve energy efficiency or pumping performance.

10 Locally built diesel pumps for every application 11 Merits of mechanical and digital dosing options 12 AQS: premium quality pumps for seamless onsite operations 13 Envirotech ® pumps popularity continues in Africa

Published bimonthly 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 Design: Katlego Montsho 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. e-mail: peterm@crown.co.za Advertising: Elmarie Stonell e-mail: elmaries@crown.co.za

Power transmission, bearings, bushes and seals 14 Industrial conveyor chain for special applications BMG’s comprehensive range of power transmission components incorporates ZMC industrial conveyor chains that offer dependable service in diverse applications, especially for use in food production. 17 CAE at Bonfiglioli: an engineering service for special needs 18 Customer standardises on SKF bearings and grease 19 Rising electricity price drives demand for higher-efficiency motors

Minerals processing and materials handling 20 Ignite: Imagine the future and bring it to life

De Beers Group Ignite™is nowa unified global innovation arm for the De Beers Group, taskedwith spearheading corporate and technology innovation initiatives. MechChemAfrica talks to Sarandos Gouvelis, head of Incubation, and GordonTaylor, head of CommercialTechnologies. 22 Rubber lining protects equipment against wear, but choose carefully 23 West Africa opportunity for pioneering cement technology

24 New iron ore mine added to Kwatani’s footprint 26 Testing at Multotec improves manganese recoveries

Hydraulic, pneumatic and compressed air solutions 28 Add-on CTS services for air compressors MechChem Africa talks to Ian Ainsworth, of Atlas Copco Compressor Technique Service (CTS), about the company’s advanced add-on services for value, efficiency and reliability.

Transparency You Can See Average circulation Jul to Dec 2021: 8 042 Printed by: Tandym Print, Cape Town

PowerGen, PetroChem and sustainable energy management 30 Zest WEG delivers its biggest mobile substation yet

Zest WEG has custom designed and manufactured a mobile substation solution for Guinea – its biggest such mobile unit yet manufac- tured in South Africa. The innovative 50 MVA substation for the Utility Company of Guinea delivers both emergency and standby power. 32 BMGWorld Goes Green

Front cover: VEGA Controls SA Contact: Leandi Hendrikse Tel: +27 11 795 3249 leandi.hendrikse@vega.com www.vega.com/en-za

Automation, process control and CAE 34 FHV7 smart camera delivers reliable GMP-compliant drug labelling Steierl-Pharma, a pharmaceutical company from Bavaria, has modernised its labelling processes with an inspection system based on the OMRON FHV7 smart camera. 36 MOVI-C: the all-in-one modular drive automation solution Innovative engineering 42 The Trial Reservoir: accelerating the pace of water technology adoption Xylem, in partnership with water consultancy Isle Utilities, has introduced an industry-first approach to funding and scaling for breakthrough water technologies. Called The Trial Reservoir, the initiative will tackle the pace of technology adoption.

Regulars 2

Peter’s comment:War in Europe: a major global challenge

4 On the cover: Compact VEGAPULS 21 overcomes chromium overflow risk: Laurent Roumieux of ENGIE Solutions talks about why his company chose the newVEGAPULS 21. 38 Products and industry news 44 Back page: Modular wastewater plants ideal for African Mines

March-April 2022 • MechChem Africa ¦ 1