非标准、高细度两段磨矿的介质优化试验研究

有些老选厂在改扩建中受各种因素限制而采用了两段磨机容积差较大的非标准的两段球磨流程。由于不能很好的调节两段磨机的负荷及进行介质优化,所以达不到预期的设计要求。在这种非标准特别是高细度的两段磨矿中粗磨段及细磨段的任务分配也较困难,在实际的生产中没有可参照的装补球方案。针对这种情况,本文对云南某铜矿采用精确化装补球技术进行了实验室试验和工业试验研究,使磨机处理量提高了17%,磨矿产品细度提高10%以上,达到了预期的研究目标。

Experimental Study on Media Optimization of Non-standard and High Fineness Two-stage Grinding Process

Some of the ore concentrators had to use the non-standard two-stage grinding process because of the limits of the various factors.Owing to the loading of two-stage grinding mill cannot be satisfactorily regurated and the optimization of the media load cannot be performed,thus they could not reach expected design requirements.In theprocess of non-standard grinding,especially high fineness grinding,the distribution of tasks between the first section and second section is more difficult,and in the production practice there have not a reference to this process.In light of this situation,the laboratory research and industrial test on the precious loading technology of media suited to such non-standard two-stage grinding flowsheet were carried out.Test results showed that the processing capacity of mill is increased by 17%,and the fineness of ground products is increased by more than 10%.