Fluid coupling raises productivity of belt conveyor

Hydraulic systems & components

2nd Quarter 2013 Hydraulic systems & components

Developed especially for drives on open-pit mining belt conveyors, the latest fluid coupling technology from Voith has several benefits. Thanks to the innovative XL blade wheel profile, the TurboBelt 780 TPXL coupling transmits twice the power of previous couplings of similar size. It is designed for 6- and 8-pole induction motors operating at speeds of 900 to 1200 rpm. On start-up the precisely controlled introduction of torque not only protects the belt but also the entire driveline. Even overloaded belt conveyors can be started reliably. Start-up times of up to several minutes can be individually set in the control system.

In 2012, this new fluid coupling was installed in one of the biggest sea terminals in northern Brazil, from where iron ore is shipped worldwide. In order to handle increasing amounts of the ore, the operating mining company decided to install three TurboBelt 780 TPXL couplings in the drives of a 1451 metre long conveyor. The couplings ensured smooth operation and prevented unscheduled downtime of the belt conveyor. As the conveyor transported around 10 000 tons of iron ore every hour, reliability was a high priority for the mining company. The hydrodynamic coupling was ideal as it has an extremely high system availability of up to 99,8% when combined with a reliable mechanical system.

Maintenance can be reduced to a minimum as the hydrodynamic power transmission is completely wear-free. Compared with traditional couplings, the TurboBelt 780 TPXL requires only half as much installation space and is also significantly lighter. For the Brazilian sea terminal, this led to simple and quick installation and alignment. The overall result of installing the new couplings was increased productivity and profitability of the belt conveyor.

For more information contact Terry-Lynn McIntosh, Voith Turbo, +27 (0)11 418 4036, terry.mcintosh@voith.com, www.voith.com

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Fluid coupling raises productivity of belt conveyor

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