MechChem Africa January-February 2022

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CONTENTS Maintenance solutions and asset management 6 Werner Pumps’ SA-manufactured boiler tube cleaning equipment Sebastian Werner, MD at Werner Pumps, talks about the role played by his company’s cleaning equipment in keeping boiler tubes in peak working condition. 7 WearCheck embraces communication tech 8 thyssenkrupp’s condition-based maintenance solution 9 Ultra-reliable lubrication from SKF Water, wastewater and pumping solutions 10 Ten years on, the Warman DWU pump remains a ‘local hero’ In the competitive world of pumps, gaining the technological edge is not easy; but ten years ago the South Afri- can engineering team at Weir Minerals Africa achieved just this – and the results are being enjoyed worldwide. 13 Tough conditions call for Grindex drainage pumps 14 StitchWise and ZebraTube: a local dewatering success story Minerals processing and materials handling 16 Vibrating screen designs informed by fundamental parameters MechChem Africa speaks to Kenny Mayhew-Ridgers of Kwatani about the holistic design approach for vibrating screens. 18 Pressure on cement, mining for sustainable production 20 Dust control vital to miners’ health 22 MineARC’s ChemSAFE Safe Havens: the gold standard Heating ventilation and air conditioning 24 BBE Consultants and the VUMA simulation advantage The BBE Group has released the 2021 version of its flagship mine ventilation simulation software, VUMA-network, which is being offered free to the mining industry. MechChemAfrica talks to Russell Hattingh, MD of BBE Consulting and Hannes Potgieter, Senior Ventilation Consultant. 26 Booyco mobile HVAC systems: busting the perception of over-engineering PowerGen, PetroChem and sustainable energy management 28 Zest WEG supplies SA’s new helium gas project Zest WEG is supplying locally manufactured transformers, switchgear and substations to South Africa’s exciting onshore natural gas and helium project, Tetra4, which is being developed by Renergen near Virginia in the Free State province. 31 IdentiQ digital twin for sustainable, flexible and secure power grids Corrosion control and coatings 32 Cooling tower water treatment – understanding the options JP Thyse, technical manager at Allmech, talks about how to protect cooling towers, evaporative condensers and hot and cold water-treatment systems from scale, corrosion and microbiocides. Local manufacturing and food processing 34 SEW-Eurodrive’s build strategy: the pride of Africa MechChemAfrica talks to SEW-Eurodrive’s, Raymond Obermeyer and Jonathan McKey about the strategy that has enabled growth in difficult times and their modern 26 000 m 2 facility in Johannesburg. Innovative engineering 38 Mobile power innovation for a cooler and cleaner environment Atlas Copco’s David Stanford talks about some the innovative solutions emerging from the company’s Power Technique business line, driven by the global group’s commitments to help meet the UN’s sustainability develop- ment goals(SDGs) and the Paris Agreement. Regulars 2 Peter’s comment: Davos, Klaus Schwab and the multi-stakeholder sustainable future 4 On the cover: Water reuse and ecological transformation: MechChem Africa talks to Miles Murray, about Veolia’s expertise in water and resource reuse and the role the company plays in delivering ecological transformation. 36 Products and industry news 40 Back page: Mechanised machinery training enters virtual age

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

Transparency You Can See Average circulation Jan to Jun 2021: 7 196 Printed by: Tandym Print, Cape Town

Front cover: Veolia Services Southern Africa (VSSA) Contact: Veronica Stevens Tel: +27 11 663 3618 veronica.stevens@veolia.com www.veolia.co.za

January-February 2022 • MechChem Africa ¦ 1