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MEI Online: Plant Operation News: Middle East & Asia: September 23rd 2010


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:: DMS Plant for Iranian Base Metal Producer

Bateman Engineering has successfully commissioned a 30 t/hr dense media separation (DMS) modular plant it supplied to the Asechin Ara Company in Iran. The plant is used for the pre-concentration of zinc and lead carbonate bearing ore from the Angouran Mine in Iran's Zanjan Province. The plant will also be used to process other base metals and also industrial minerals from various mine sites in Iran.

There has been a worldwide increase in the use of DMS technology for the pre-concentration of base metals and industrial minerals in general, due to the potential this technology offers of reducing the size of downstream equipment.

The DMS modular plant was manufactured, fully assembled, water tested and signed off by the client at the contractor's works in Pretoria, South Africa, prior to being dismantled for shipping to Iran. The plant was constructed by the client and commissioning and training of the operators was carried out under the supervision of an engineer from Bateman Engineering.

The plant required a complete redesign of the standard Bateman 30 t/hr DMS. This was due to differences in operating density and the material yield to the cyclone underflow required for this application. The basic operating parameters were determined from tests results on a Zn/Pb carbonate bearing ore sample that was sent to South Africa for testing at the South African minerals research institute, Mintek. The plant achieved an approximately 85 % zinc recovery with a 60 % mass reduction.

The material is trucked from mine sites and crushed at the client's crushing facilities in Takestan prior to trucking to site. All peripheral equipment such as the feed hoppers, conveyor belts, rotary scrubber, screw classifier, thickener and water reticulation plant were designed and built by the client's in-house engineer.

This is the second DMS plant supplied to Iran following the 5 t/hr DMS supplied to the Iranian Minerals Processing Research Centre (IMPRC) in 2004.

Bateman Modular Plants can be applied in prospecting, exploration, small-scale mining and mineral processing, and are designed to overcome the problems encountered in the erection and commissioning of processing facilities in remote and difficult locations. The design options are standardised, but flexible, and significantly reduce engineering and construction times and hence capital cost.




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