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通过测定矿石力学性质和给矿粒度组成,优化棒磨机棒径,并与现场磨机磨矿结果对比.结果表明,矿石整体较硬且韧性较大,但有部分矿较易泥化,铝土矿可选择性磨矿;粗磨矿粒度较粗,矿粉很少,小于0.074 mm的矿粉仅占2.98%;与现场100 mm棒径磨机磨矿结果相比,按棒径半理论公式计算的80 mm棒径磨机的磨矿细度(小于0.074 mm的产率γ?0.074 mm)提高了6.51%,小于0.9 mm的产率γ?0.9 mm提高了4.00%,小于0.9 mm的生产能力q?0.9 mm提高了4.76%.棒径优化对提高磨机生产能力及磨矿细度作用明显.
By measuring the mechanical properties of the ore and the particle size distribution of the ore, the rod diameter of the rod mill was optimized and compared with the grinding results of the field mill.The results show that the ore is hard and tough, The ground ore can be selectively ground. The coarse grinding ore is coarse and the ore powder is very little, only about 2.98% of the ore powder smaller than 0.074 mm. Compared with the grinding results of the 100 mm rod mill in the field, Grinding fineness (yield of less than 0.074 mm γ 0.074 mm) of the 80 mm rod mill increased by 6.51%, and the yield of less than 0.9 mm γ 0.9 mm increased by 4.00% and less than 0.9 mm Production capacity q? 0.9 mm increased 4.76%. Rod diameter optimization to improve mill production capacity and grinding fineness obvious.