Proven top performance: Voith’s TPKL fluid coupling in mining application 26 MDA Technologies 1/2015
MACHINE ELEMENTS DaTong Coal Group uses fluid couplings from Voith in many mines across the country Reliability is very important in decision-making processes. Chinese DaTong Coal Mining Group successfully relied on Voith fluid couplings in the past and, thus, chose the drive solution specialist’s TPKL fluid coupling for its 6.4 MW conveyer belt drive. Voith recently manufactured their 1,000 th fluid coupling type TPKL. This coupling will go to the DaTong Coal Mining Group in China. DaTong Coal Mining Group Co., Ltd. is located in DaTong City, province Shanxi, China. It is one of the top three coal groups in China, with a coal production capacity of 152 million tons per year. The coal group operates a large number of coal mines across the country. Many of them use Voith fluid couplings in diverse underground applications like AFCs, belt conveyors, stage loaders and crushers. Four couplings for 6.4 MW drive conveyor drive with demanding requirements. The 3,160 m (10.367 ft) long underground belt conveyor is driven by four 1,600 kW motors, with a planned capacity of 4,000 tons per hour. The belt conveyor is designed for a demanding workload as it will transport coal uphill at a 14 degree angle. The Manager of the Mechanical and Electrical Department reports: “We are very happy to use fill-controlled couplings from Voith running in our belt conveyors. The extraordinary soft start characteristic, very high reliability and good after sales service of these couplings provide guarantee to our normal safely production in our mines.” of the belt conveyor. It allows active load sharing with multi-motor drives. Thanks to its standstill cooling function it can handle the most difficult start-ups multiple times in succession. Voith Turbo, a Group Division of Voith GmbH, is a specialist for intelligent drive solutions. Customers from highly diverse industries such as oil and gas, energy, mining, mechanical engineering, ship technology, rail and commercial vehicles rely on advanced technologies from the division. Founded in 1867, Voith employs more than 39,000 people, generates € 5.3 billion in sales, operates in about 50 countries around the world and is today one of the largest family-owned companies in Europe. www.voith.com Convinced by the good performance of hydrodynamic power transmission the decision for the drive line arrangement in the main belt conveyor of a new coal mine was also made in favor of Voith fluid couplings. In this specific case the mine will receive four fluid couplings type TPKL. The fill-controlled fluid couplings will be used in a 6.4 MW belt Smooth start-up The manufacturer started the production of the TPKL coupling series in 1997. This fluid coupling type was especially developed for demanding belt conveyor applications in mining. The coupling type provides excellent torque limitation for a smooth start-up About Company name: Voith GmbH Established: 1867 Headquarters: Heidenheim, Germany Turnover: € 5.3 bn Employees: more than 39.000 Products: intelligent drive solutions and systems MDA Technologies 1/2015 27
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