为了挖掘生产潜力,不少磁铁矿选厂在破碎系统安装了磁滑轮,但由于磁滑轮的分选,使矿石产生了剩磁造成分级混乱影响选别指标。尤其是磁滑轮处理最终破碎产品的选厂,更应考虑去掉矿石剩磁问题。带有剩磁的矿石进入磨机后,虽然可经受磨矿介质的冲击、磨剥和温度不高的热作用,对 In order to tap the potential of production, many magnetite processing plants installed magnetic pulleys in the crushing system. However, due to the sorting of magnetic pulleys, the ore produced residual magnetism and caused the disorder of classification. In particular, magnetic pulleys handle the final crushing product selection plant, we should consider removing ore residual magnetism problems. After entering the mill with residual magnetism, although it can withstand the impact of grinding media, grinding stripping and the role of heat is not high,