MechChem Africa May-June 2021

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CONTENTS

Maintenance solutions and asset management 6 Progressive automatic lubrication systems for extended life Joe Barnard of Lincoln Lubrication SA describes the SKF Group company’s continual lubrication solutions for stationary and mobile machines operating in harsh and unforgiving environments. 8 Bosch Rexroth Ghana milestone repair project in Nigeria 9 Tube and drain cleaning – what you need to know Special report 10 Bonfiglioli SA: 30 years of commitment to local industry In celebration of its 30 th anniversary as a subsidiary of the Italian Bonfiglioli Group, MechChem Africa talks to founding members Tony dos Santos and retired CEO, Robert Rohman. Water and wastewater solutions 12 Veolia: resourcing the world through environmental services Chris Braybrooke talks to MechChem Africa about Veolia’s new and broader global purpose, which embraces the UN’s sustainable development goals (SGDs) through optimised and integrated resource management solutions involving water, waste and energy. 15 Pumping responsibly the only way to conserve groundwater 16 An integrated path to Africa’s water future 18 Dynamic Fluid Control sees a future in local valve designs Minerals processing and materials handling 20 Mega screens: where materials science meets mechanical engineering Annelize Van der Walt and Gideon De Villiers of Kwatani talk about the design of increasingly large vibrating screens. 22 FLSmidth high density thickeners double mine output 24 New composite liners for large sag mills 25 Raising beneficiation efficiencies in coal Heating ventilation and air conditioning 26 Modular HVAC systems for adverse applications Johan Pienaar of SME – Specialist Mechanical Engineers – talks about his company’s MicroKool MK series industrial HVAC solutions and describes an implementation success in the aluminium smelter industry. PowerGen, PetroChem and sustainable energy management 28 WEG IE4 motors: a zero-premium route to optimum efficiency With the introduction ofWEG IE4 super premium efficiency motors into SouthernAfrica at the same price as its premium efficiency IE3 range, Fanie Steyn of Zest WEG outlines why no other motor choice makes sense. 31 G7 Energy facility preferred bidder in RMIPPPP Local manufacturing and food processing 32 Bespoke drive solution for local animal feed equipment Phillip Steyn of SEW-EURODRIVE talks about a custom-designed 6.0 t twin-shaft paddle mixer drive solution developed in conjunction with Dalein Agriplan for a local agricultural feed producer. 33 siFramo: a modular non-welded steel support system Innovative engineering 38 Multipurpose bioplastic from soy residues: a pilot plant in Finland A biopolymer plant is being built in Uusikaupunki, Finland, in which bioplastic production from the soy residues derived from main stream food and feed production processes will be piloted on an industrial scale. Regulars 2 Peter’s comment: Global sustainability and progress for forestry industries 4 On the cover: Drive solutions for water, wastewater and sewage Kelly Mac Iver of BMG describes suitable drive solutions for the water industries. 36 Products and industry news 40 Back page: Smart cities promote best practice in urban sustainability

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 Q2 2020: 6 305 Printed by: Tandym Print, Cape Town

Front cover: BMG Contact: Kelly Mac Iver Tel: +27 (0) 11 620 1615 kellyM@bmgworld.net www.bmgworld.net

Publisher of the Year 2018 (Trade Publications)

May-June 2021 • MechChem Africa ¦ 1