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日本神子畑选矿厂的生产特点之一是铜、锌浮选和锡的重选共同存在。从对这种矿石的最适宜的粉碎粒度的观点看,前者要细,后者要粗。实际生产中,对两者的磨矿要求无法妥协。为防止锡的过粉碎对磨矿作业的改进方针是:(1)增加磨矿段数,缩小粉碎比,使微粒锡迅速分出系统之外;(2)控制铜锌浮选,尽可能采用粗碎;(3)在闭路磨矿中不受矿石比重的影响安装筛子做分级机用。由于上述
One of the characteristics of the production of Japan’s Shizuoka concentrator is the coexistence of copper and zinc flotation and tin re-election. From the point of view of the optimum particle size for this ore, the former should be fine and the latter coarse. In actual production, the grinding requirements of the two can not be compromised. In order to prevent over-pulverization of tin, the improvement guidelines for grinding operations are as follows: (1) Increase the number of grinding sections and reduce the pulverization ratio so that the fine particles of tin can be quickly separated from the system; (2) Control the flotation of copper and zinc, Broken; (3) in closed-circuit grinding from the impact of the proportion of ore installed sieve to do grading machine. Due to the above