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| Application of Special-shaped Forced Rotary Discharge Device in Cement Batching System |
| Chengxian Qilianshan Cement Co., Ltd. , Longnan Gansu 742508, China |
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Abstract The traditional batching silo in cement production is analyzed for its problems such as the simple structure of the discharge chute and the large critical angle of repose of materials. When industrial by-product desulphurization gypsum is used as a retarder, it is prone to silo blockage, interruption and silo bridging due to its high moisture content and high viscosity. The application of a special-shaped forced rotary discharge device has been used to transform the batching silo. The upper part of the original batching silo is reused and the lower part is demolished and a new "split-into-two" special-shaped silo body is installed. High molecular polyethylene boards, special-shaped forced rotary discharge device and proximity limiter mechanism are installed. The forced discharge device is equipped with three scrapers, and the relative motion of the scrapers and the silo wall has realized the stable flow materials in all directions. It can judge the blockage of the equipment by itself, and the automatic plugging of the batching silo is realized. After the modification, the cement SO3 control index is reasonable, the qualified rate of cement out of the mill is improved, and the electricity can be saved about RMB 1.693 2 million per year, and the labor cost can be saved about RMB 180 000.
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Received: 05 November 2024
Published: 25 May 2025
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