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| Application Practice of Powder Flow Control Technology in the Renovation of Cement Silo Discharge Systems |
| HE Xigui, ZI Wei, ZHANG Wengong, GAO Peng, XUE Jinwei
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| Shaanxi Beiyuan Group Cement Co., Ltd. , Yulin Shaanxi 719319, China |
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Abstract The cement silo discharge system is critical equipment in cement production, and its stable operation directly affects the continuity of cement production and product quality. Traditional discharge systems generally suffer from the "funnel flow" phenomenon, in which materials only flow along the central area while materials near the silo wall remain static for a long time, resulting in material caking, arching, blockage and other problems. Based on the strategy of "flow field reconstruction + intelligent control", the Powder Flow Control technology realizes the mass flow discharge of materials. Taking a single cement silo of a company as an example, this paper proposes a technical renovation scheme adopting the Powder Flow Control V7.0 H-type control system. By installing Taiji cones and rectifying grids inside the silo, equipping pneumatic flow valves at the silo bottom, and integrating a local/remote dual-mode intelligent control system, the mass flow discharge at the bottom of the cement silo is realized. After renovation, the thickness of the caked material layer in the cement silo decreases significantly, the arching problem is completely eliminated, the power consumption per ton of cement is reduced by 0.74kW·h/t, the silo utilization rate is increased to 98%, and the annual direct economic benefit reaches 2.32×105CNY. This provides a reliable scheme for the upgrading of cement silo discharge systems.
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Received: 29 December 2025
Published: 25 May 2026
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