MechChem Africa July-August 2021

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CONTENTS Power transmission, bearings, bushes and seals 6 MOVIGEAR: The all in one mechatronic drive SEW-EURODRIVE sales manager Willem Strydom talks about MOVIGEAR ® mechatronic drive technology. 8 Industrial solutions for the cement industry 10 Remote diagnostic services: a stitch in time

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. Transparency You Can See Average circulation Q2 2020: 6 305 Printed by: Tandym Print, Cape Town Front cover: Weir Minerals Africa Contact: Marnus Koorts Tel: +27 (0) 11 929 2792 marnus.koorts@mail.weir www.global.weir e-mail: peterm@crown.co.za Advertising: Elmarie Stonell e-mail: elmaries@crown.co.za

Pump systems, pipes, valves and seals 12 The advantages of flooded-suction wastewater solutions

MechChemAfrica talks to KSB Pumps andValves’ Frikkie Botma and Hugo du Plessis about the need to specify the right pump for the right application.

14 Integrated intelligence to solve wastewater challenges 16 Another Sykes pump added to solve mine flooding 17 Intelligent wash-and-clean solutions from Grundfos

Hydraulic and pneumatic systems 18 Smart pneumatics: five ways to improve packaging Chris Noble, Emerson business development and IIoT consultant for the food and beverage industry, talks about smart pneumatic control to reduce the costs of packaging. 20 HYDAC expands its hydraulics footprint in Southern Africa 22 Tetra Pak solutions for cheese manufacturers Minerals processing and materials handling 24 Multotec’s new UX7 spiral for recovering ultra-fines Multotec has released its new UX7 spiral to allow customers to recover more of their valuable ultra-fine material, and to “open the door for customers to cost effectively re-treat their tailings dams”.

25 BMG’s advanced solutions for the chemical sector 26 Depth of engineering capacity underpins mining 27 COVID analyses from sewage treatment plants

PowerGen, PetroChem and sustainable energy management 28 The green economy and Africa In his role as chairman of the African Hydrogen Partnership, Ian N Fraser argues the positive case for adopting green hydrogen. 31 Trafo distributes world-leading temperature control

Automation, process control, instrumentation and CAE 32 Digitising agriculture with SICK’s 3D environment monitoring sensors

SICK Automation is leading the ‘Farming 4.0’ agricultural digitisation era with its visual perception solutions. 33 EM safety light curtain boosts productivity

Environmental management, waste and cleaning technologies 34 Unique recycling project gains national traction The successful PETCO Separation at Source programme has begun to be rolled out nationwide. 35 Used oil generators urged to recycle responsibly

Innovative engineering 38 Gravity plus hydrogen energy storage in underground shafts Energy storage specialist Gravitricity has submitted a global patent to turn underground shafts into pressurised energy stores capable of safely accumulating significant quantities of hydrogen gas.

Publisher of the Year 2018 (Trade Publications)

Regulars 2

Peter’s comment: Tipping points, optimisation and the environment 4 On the cover: Warman ® mill circuit pumps: a global flagship: Marnus Koorts outlines features driving the success of Warman® Mill Circuit (MC) slurry pumps. 36 Products and industry news 40 Back page: Circular economy products developed from industrial wastewater

July-August 2021 • MechChem Africa ¦ 1