MechChem Africa January-February 2023

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CONTENTS 30 Maintenance solutions and asset management 6

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Oxidation condition and lubricant refreshment in turbine oils MechChemAfrica presents a summary of WearCheck’s Technical Bulletin 81, which details how lubricant refreshment life for turbines can be accurately estimated to achieve lean operation. 8 Top tools for efficient operations 10 Atlas Copco’s SmartLink optimises compressor rooms 11 Metso Metrics offering extended to stationary crushers Water, wastewater and pumping solutions 12 Pump rental offers benefits that are hard to beat LeeVine of pump rental specialist IPR, presents some of the advantages to consider when deciding to rent or buy pumping equipment. Minerals processing and materials handling 16 Mines increasingly seeing value in digital systems Mining companies are increasingly looking to invest in digital technologies to enable them to make informed decisions.Weir Minerals Africa’s Tiisetso Masekwameng explains. 17 Biomass gasification: the alternative hydrogen beneficiation pathway 18 Avoiding load losses by keeping buckets in good shape 19 Molefi Letsiki Diamonds awarded De Beers Group Sightholder contract 20 Mobile crushing with less fines, more value 21 Casting innovation forWeir Minerals’ Isando plant Heating ventilation and air conditioning 22 Heat recovery, energy efficiency and decarbonisation goals Bosch Projects' new dimple tube technology is set to transform the capacity of vacuum pan heat exchangers. 23 HVAC leader takes high-tech approach to prototyping PowerGen, PetroChem and sustainable energy management 24 LNG: a vital component for SouthernAfrica’s energy transition MechChemAfrica talks toStephenRothmanof LNGHubabout the reliable,financially viable,environmentally sustainableandsocially responsible services his company is able to offer to SouthernAfrica industries wishing to start transitioning away from heavy-oil-based fuels. 27 Emerson and Neste to optimise Fintoil biorefinery 28 Concentrated solar thermal plant with molten salt central receiver Local manufacturing and food processing 30 Steel import tariffs destroying local manufacturing efforts Tal-Tec’sGregTalbot,MDof theBrits-based localmanufacturer ofmodular farming solutions formanaging livestock,describes howSouthAfrica’s steel import tariffs are impacting the competitiveness of his business. 31 Can SA’s steel master plan revitalise the local steel sector? 33 Tetra Pak ® SouthAfrica joins PETCO Corrosion control and coatings 34 SA’s nuclear build programme a bonanza for galvanized steel Simon Norton of the International Zinc Association (IZA) Africa talks about SA’s proposed nuclear build programme and the opportunities it presents for galvanized steel. 35 Prevent CUI with injectable, vapour-phase corrosion inhibitor Automation, hydraulic and pneumatic systems 36 Industrial automation, air handling and energy efficiency MechChemAfrica talks toSMCproductmanager,BrianAbbott,about localmanufacturingandengineeringexpertise;air andenergyoptimisation solutions; and support for industrial automation. Innovative engineering 42 A practical and cost-effective approach to CFD Thomas Sprich of SimSpire talks about the use of computational flow dynamics (CFD) for improving process-mixer, pump and fan design. Regulars 2 Peter’s comment:Agility, long-term resilience and sustainability 4 On the Cover: Nedbank Business,Manufacturing 38 Products and industry news 44 Back page: Sandvik improves sustainability of packaging 13 Revamp for EC water treatment works 14 JoJo water solutions acquires Calcamite

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 Jul to Sep 2022: 10 363 Printed by: Tandym Print, Cape Town

Front cover: Nedbank Commercial Banking - Manufacturing

Contact: Amith Singh Tel: +27 83 638 2220 AmithSin@nedbank.co.za nedbank/manufacturing

January - February 2023 • MechChem Africa ¦ 1