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球磨机的衬板应该既能防止磨机外壳破裂,又能将磨碎的机械功传给磨机内的物料。本文介绍改进了的球磨机的矿石自磨衬板。试验和试验结果是在芬兰Otanmaki选矿厂进行和得到的。磨矿迥路由一台φ2.75×3.66米的棒磨机和一台同样大小的、配有分级机的球磨机组成。两台磨机的转速为20.3转/分,相当于理论临界转速的75%。每小时可将70吨磁铁矿——钛铁矿矿石磨细到75微米以下,而且,这种粒度的矿石占磨矿产量的55%。装球量为30吨,新钢球的直径为30毫米。
Ball mill liner should not only prevent the breakdown of the mill shell, but also the grind of mechanical power transmission to the mill material. This article describes an improved ball mill self-wearing liner. The results of the tests and tests were carried out and obtained at the Otanmaki beneficiation plant in Finland. Grinding ore loop by a φ2.75 × 3.66 m rod mill and a the same size, equipped with grader ball mill composition. The speed of the two mills is 20.3 rpm, which corresponds to 75% of the theoretical critical speed. 70 tons of magnetite-ilmenite ore can be ground down to below 75 microns per hour, and this size of ore accounts for 55% of the grinding output. Set the ball to 30 tons, the new ball diameter of 30 mm.