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在苏联许多选矿厂采用自磨处理铁、含金、铜-钼、金刚石等矿石。各选厂自磨工艺流程的区别是原矿给入磨机、处理“临界”矿石粒级以及稳定磨机生产能力的方法不同。按原矿给入磨机的方法分出预先筛分和不用预先筛分流程。根据处理“临界矿石粒级的方法流程分为:从给矿之中分离出“临界粒级”流程和在单独循环中再破碎流程;把砾石从磨机中局部或全部分离的流程,一部份砾石作为砾磨机的磨矿介质,而另一部份在球磨机中再磨。
Many mills in the Soviet Union using self-grinding iron, gold, copper - molybdenum, diamond and other ore. The process of the mill from the mill process difference is raw ore into the mill, dealing with “critical” ore particle size and stability of mill production capacity of the different methods. According to the method of raw ore into the mill out of pre-screening and no pre-screening process. According to the method of handling “critical ore particle size, the process is divided into: separating the” critical particle size "from the feed ore and the re-crushing process in a separate cycle; the process of separating the gravel partially or completely from the mill, Gravel as the gravel mill grinding media, and the other part in the ball mill reground.