KHD HUMBOLDT WEDAG INTERNATIONAL AG

KHD hands over a new grinding plant in Thailand

For Siam City Cement Public Co., Ltd. (SCCC) from Thailand, KHD Humboldt Wedag engineered and commissioned a new roller press-based raw meal grinding plant at SCCC’s factory 1 located in the Saraburi province.

With the new Comflex® grinding unit, the client is able to replace two outdated ball mill circuits. The new roller press-based circuit achieves the same production of 350t/h, but with a much less energy-demanding equipment setup. During the successful extended 72-hour performance test at the beginning of 2020, the new grinding unit met all targets regarding performance and product quality.

The Comflex circuit comprises the following proprietary KHD equipment:

Roller press RP M 18 – 200 / 180

Static coarse material separator VS 620

Static fine material separator LS 8600

System fan HKSK 236 / 346

Four product separation cyclones

The client SCCC appointed KHD with the contract because of the significantly reduced electrical energy demand of the main equipment. With a specific energy consumption of 13.36 kWh/t, the new roller press-based grinding circuit saves more than 8 kWh per ton compared to the old ball mill circuits. SCCC is now able to save almost 40% of energy while maintaining the same production volume. This converts to a reduction of annual energy costs of approximately € 1.5 million; a number that clearly indicates the significant return on investment of such a modernization project.

www.khd.com

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