MTA-AUS 2014

CONEXPO-CON/AGG VIP SHOW GUIDE contains Floor Plans and a complete listing of companies exhibiting at the ConExpo-Con/Agg 2014 trade show in Las Vegas March 3-7, 2014. It also contains 2014 forecasts for the Aggregate, Concrete and Cement industries

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66 VDMA | 2014 VDMA MINING SUPPLEMENT VDMA "This is one of the biggest improvements we have made in this field in 20 years and we are referring to the new product line as the CF line," said Tore Hartmann, senior product manager-mineral processing, GEA Westfalia Separator Group. "We combined the old system, which used two gearboxes, into one system with three steps of planetary gearing. Through optimization, we have improved the energy balance of the ma- chine and reduced energy consumption by at least 10%." The summa- tiondrive system speed drive is designed with an above-average safety factor for high torques even in cases of high differential speeds. With a rugged, robust and reliable design, the decanter centrifuge has sev- eral improved features, such as a flattened cone, an external gear, an enhanced solid output diameter and a special scroll design for the highest solid throughput and highest dryness. Hartmann specializes in solid-liquid separation equipment and he said that GEA has identified many areas for these decanters in the mineral processing sector. "Many of these machines can be found working in the industrial minerals sector, processing kaolin, talc, bentonite, calcium carbonate and lithium carbonate," Hart- mann said. "The se machines have also been used to treat the crud formed by the foam during the extraction phase of the SX/EW process. We have developed machines with Hastelloy C276 specif- ically for this segment." GEA has already sold and commissioned several different sizes of these machines worldwide. Performance in Motion Joest produces some of the world's largest screening machines. The company's screens, feeders and sorting systems are based on some of the most advanced vibrating technology. Headquartered in north- ern Germany, the company manufactures equipment in Australia, China, France, North America, India and South Africa. It also makes its own exciter drives. This is especially important for the mining sector as the heavy-duty drives used for the large screening ma- chines need to operate safely for long periods of time. Joest Australia Pty Ltd. recently signed a second agreement with Rio Tinto to deliver six additional vibrating screens and feeders to the miner's iron ore projects in the Pilbara. The contract extends to the Cape Lambert Port B expansion, which will include 13 large vi- brating screens and feeders. Under the new contract, Joest will manufacture screens and feeders in Welshpool, Wester n Australia, for the second phase of the Cape Lambert Port project. In 2012, Joest supplied equipment for the first phase of this project: Cape Lambert Port A project. The Cape Lambert Port B project will provide an additional 123 million metric tons per year (mt/y) in iron ore shipping capacity, increasing Rio Tinto's total port capacity from 237 million mt/y to 360 million mt/y. Cape Lambert Port B i s being delivered in two overlapping phases of 53 million mt/y and 70 million mt/y. The first major milestone for the project (290 million mt/y) was achieved during the third quarter 2013 and it expects to achieve 360 million mt/y in 2015. GEA Westfalia's decanter centrifuges have been used successfully to remove the crud formed by the foam during the extraction phase of the SX/EW process. This illustration shows the summationdrive and two operating modes. Main motor Secondary motor Gearbox

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