MechChem Africa November-December 2021

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CONTENTS Pump systems, pipes, valves and seals 6 Hubgrade: sustainable management of our natural resources Veolia Environmental Services is introducing its Hubgrade digital platform, which combines human expertise and digital technology for operational and environmental efficiency. Chris Braybrooke explains. 8 Quality, custom rubber hoses fromWeir Minerals’ Alrode facility 11 To process dam operators: desilt as soon as possible Power transmission, bearings, bushes and seals 12 Rexnord: for fitting convenience and superior performance Following the release of SN 500 compatible Rexnord RN series bearings into SouthAfrica by Bearings International (BI), MechChem Africa talks to Lingesh Naidoo about the Rexnord brand and its niche advantages. 14 Sealed chains for the harshest environments Minerals processing and materials handling 16 Optimising mill circuits for best efficiency impact Decades of product evolution have given FLSmidth a range of solutions – including its LoadIQ smart sensor technology – both to supply and optimise all the technology in grinding circuits. 19 New presses for Multotec Rubber 20 Afrisam upgrades crushing technology with Metso C120 22 Cleaner coal viable due to fine-coal beneficiation 23 Kwatani develops specialised spiral elevator in-house Hydraulic and pneumatic systems 24 Festo Didactic: unleashing full learning potential Festo’s Didactive Unpacked helps customers to ‘unbox’ its online training courses and webinars. Hannes Otto, Automation Skills Consultant, gives an overview. 25 Atlas Copco celebrates 75 years PowerGen, PetroChem and sustainable energy management 26 Re-using depleted mines for energy storage thyssenkrupp Uhde SouthAfrica has signed a pre-feasibility study with Pumped Hydro Storage Sweden for a project that involves storing renewable energy using depleted underground mining infrastructure. 27 Zest WEG customers can now buy online – anytime 28 Turnkey Energas natural gas power plant 30 Wind Atlas Project: WASA 3 31 PwC’s climate targets validated by SBTi Automation, process control, instrumentation and CAE 32 Collaboration in the industrial ecosystem. Eplan CEO, Sebastian Seitz, talks about the Eplan Platform and how it promotes collaboration among the various process participants across the industrial automation ecosystem. Environmental management, waste and cleaning technologies 34 The paper industry: the epitome of the circular economy The pulp and paper manufacturing and recycling sector has been adopting production innovations to reduce its environmental footprint, divert waste from landfill and stay ahead of the circular economy curve. Innovative engineering 40 Modern lubricants, viscosity and the role of additives In Part 2 of her series entitled Diesel emissions –A breath of fresh air,Wearcheck’s technical manager, Steven Lumley, talks about lubricant viscosity and the different roles of additives. MechChem Africa presents the key takeaways. Regulars 2 Peter’s comment: COP26 and concrete action 4 On the cover: New NCPC-SA training initiatives extend IEE project success: Tanya van Zyl of the NCPC-SA talks about training success and the Centre’s exciting new courses. 36 Products and industry news 44 Back page: Lights-out manufacturing feasible from the late 2020s

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:NCPC-SA Contact: Tanya van Zyl Tel: +27 (0) 12 841 3225 info.tvanzyl@csir.co.za www.ncpc.co.za

November-December 2021 • MechChem Africa ¦ 1