物料相对易磨性的试验研究

Experimental research on relative grindability of material

研究了两种不同的方法对物料相对易磨性检测结果的影响,结果表明,激光粒度分析法比筛析法便捷有效,它能够有效降低颗粒之间由于团聚对测试结果的影响。在此基础上,定义了新的相对易磨性系数计算公式,结果表明,不同的物料相对易磨性系数相差较大,部分物料的相对易磨性系数随着粉磨时间的延长而增大,也有部分物料的相对易磨性系数变化不大甚至下降。

The effect of two different methods on the detection results of relative grindability of material was studied. The re- suits showed that the laser particle size analysis was more convenient and effective than screen analysis. The laser particle size analysis could reduce influence of particle agglomeration on the detection results of relative grindability of materials, and the new relative grindability coefficient formula was defined based on this. The results indicated that the relative grindability coefficient of different materials had larger difference. The relative grindability coefficient of some materials was increased with grinding time extension, and relative grindability coefficient of some other materials changed little or reduced with grind- ing time extension.