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| Application of High-end Vertical Roller Mills in the 10 000t Cement Production Line in Ethiopia |
1 CNBM Equipment Group, Hefei Zhongya Building Material Equipment Co., Ltd. Tianjin Branch, Tianjin 300133, China; 2 CNBM Equipment Group, Hefei Zhongya Building Material Equipment Co., Ltd. , Hefei Anhui 230601, China; 3 CNBM Equipment Group, Tianjin Cement Industry Design & Research Institute Co., Ltd. ， Tianjin 300133, China
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Abstract As an advanced grinding equipment, VRMs play avital role in the cement industry. This paper details the process flow, main equipment composition, and actual operation effect of the grinding systems of TRMK60.3 cement VRM, HRM58.4 raw meal VRM and HRM43.3M pulverized coal VRM adopted in Africa's first 10 000t cement production line, invested and constructed in Ethiopia. The production and operation results show that all vertical roller mill systems operate stably and reliably with excellent product quality: the output of the TRMK60.3 cement VRM system is stably maintained at 280t/h, the blaine of the product is >3 900cm2/g, and the system power consumption is about 29.7kW·h/t; the output of the HRM58.4 raw meal VRM system ranges from 470t/h to 480t/h, the residue of the raw meal after grinding on an 80μm sieve is 16%, and the system power consumption is about 15.4kW·h/t; the output of the HRM43.3M coal VRM system is 80~100t/h, the residue of the pulverized coal on an 80μm sieve is 6%, and the system power consumption is about 22kW·h/t. All production and operational indicators have reached the advanced level of the industry, and the system has good promotion and application value.
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Received: 21 April 2025
Published: 22 September 2025
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