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| Application and Upgrade of the Cement Equipment Walking Steady-flow Grate Cooler in the Alumina Industry |
| CONG Xiaojing1, SUN Yanliang2, WU Yongzhe1, CONG Jiaqing2
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1 CNBM (Tianjin) Pyro Technology Co., Ltd. , Tianjin 300133, China; 2 CNBM Equipment Group, Tianjin Cement Industry Design & Research Institute Co., Ltd. , Tianjin 300133, China
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Abstract With the gradual depletion of bauxite resources in China, the significance of the sintering method in alumina production is increasingly prominent. As the critical equipment in the alumina clinker calcination system, the cooling device directly affects the energy consumption index and product quality of the system. This article takes the walking steady-flow grate cooler in the cement industry as the research object and systematically analyzes its adaptive transformation and optimization upgrade in the cross-industry alumina clinker sintering process. By comparing the traditional single-tube and double-tube cooling devices in alumina production and analyzing the physicochemical properties of alumina clinker, the improvement measures of the cooling equipment are expounded, revealing the technical path of the cross-industry application of the walking steady-flow grate cooler. The research shows that in response to the high alkalinity, strong corrosivity, and easy deliquescence of alumina clinker, through the development of special corrosion-resistant and wear-resistant materials, optimization of the grate cooler's grate plate structure, and addition of a screening device, the technical problems such as easy clogging and rapid wear of the walking steady-flow grate cooler in the alumina clinker cooling process can be effectively solved, meeting the requirements of the alumina clinker cooling process and providing a useful reference for the cross-industry application of cement industry cooling equipment in the nonferrous industry.
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Received: 06 September 2025
Published: 18 May 2026
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