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| Causes Analysis and Solutions of Material Silo Blockage in Cement Plants |
| Yang Guangjian1, Yao Qin1, Peng Zhongyao1, Mao Wen2
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1 Gezhouba Jingmen Cement Co., Ltd. , Jingmen Hubei 448155, China; 2 Gezhouba Shimen Special Cement Co., Ltd. , Changde Hunan 415000, China
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Abstract This paper analyzes the main causes of material silo blockage, including high moisture content of raw materials, unreasonable structural design of silos, large friction coefficient of silo walls, and lack of external driving force to promote material flow. This paper compares the inherent limitations of traditional blockage treatment measures, including material moisture control, widening of discharge openings, laying resin plates on silo walls, installation of silo wall vibrators and manual blockage cleaning.The paper focuses on the structural working principle, key points of installation and commissioning, and common trouble-shooting methods of the hydraulically driven silo blockage dredging machine. Field application results show that the dredging machine adopts hydraulic drive to realize reciprocating motion of material rakes, which automatically loosens materials and breaks material arches, and can completely replace manual silo cleaning operation.After application, the cement mill downtime caused by silo blockage was reduced from 50% to 0%, and the frequency of manual blockage clearing per shift fell from 5 to 0, which greatly improves production continuity and on-site operation safety.
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Received: 02 January 2026
Published: 25 September 2026
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