The Asia Miner

OCT-DEC 2018

The ASIA Miner - Reporting Important Issues to Mining Companies in the Asia Pacific Region

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Page 44 of 51

the asia miner • volume 15 • issue 4 43 SUPPLIER NEWS The worldwide processing of ores and coal requires the effecঞve removal of tramp iron, like screws or bars, at very high throughputs. STEINERT Australia, a specialist in delivering separaঞon technologies for the removal of damaging contaminants, has developed electromagnets that are characterised by their extremely strong and extensive magneঞc fields. The pronounced depth effecঞveness of STEINERT's electromagnets means that tramp iron can be reliably collected even from deeper burdens. As a leader in several Global markets, STEINERT offers an unrivalled and extensive product range to enhance the operaঞons of Australia's leading local and internaঞonal recycling and mining projects. The special design of the STEINERT OHSM (overhead suspension magnets), using coils made of anodised ANOFOL® aluminium strip and an inhibited oil, provides consistent and efficient cooling, thus reducing the risk of a coil burnout. STEINERT's special coil design results in a maximum number of windings with a simultaneously compact design, which does not require an external expansion tank for the magnet design. Passive cooling may be sufficient for smaller sizes, whilst the larger series are equipped with an acঞve cooling system. The acঞve cooling, which uses heat exchangers, enables a performance increase of up to 15 per cent. Electric manual overhead suspension magnets from STEINERT can also opঞonally be operated with metal detectors, so that the magnets are only switched on when required and power can also be increased using excessive excitaঞon, which can then achieve temporary power increases of up to 60 per cent. Alternaঞvely, you can rely on the "permanent retenঞon" system, where permanent magnets are installed in addiঞon to the electromagnets ensuring that tramp iron already excavated does not return to the sortable material, for instance in the event of a power failure. Staঞonary STEINERT OHSM units are available with working widths from 750 mm to 3,000 mm and working distances of up to 900 mm. The STEINERT OHSM range offers staঞonary and self- cleaning suspension magnets. Staঞonary magnets are suited for operaঞons where the amount of tramp iron involved is small, while self-cleaning suspension magnets are beer suited to higher concentraঞons of iron components. STEINERT OHSM range offers both Permanent and Electro Magnets in either configuraঞon. The Electro Magnets can be either oil cooled or air cooled. As part of the magneঞc separaঞon soluঞon, STEINERT offers a complementary suite of technologies including manual or motorised trolleys for dumping of collected tramp from staঞonary magnets, as well as the MagDrive/Transformer Recঞfier Control Cabinets. The convenঞonal recঞfier has been replaced in the high- performance magnets series by the "MagDrive" controller developed jointly with ABB. Using ABB DC drives enables significant reducঞons in the ঞme taken to switch the electromagnets on and off. STEINERT delivers continuous magnetic separation under extreme environmental conditions STEINERT OHSM revoluonising magnec separaon

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