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我厂几年来在生产上存在三个主要問題。首先是矿石的嵌佈性复杂,生产中經常产生多变性,因而在条件掌握上就处于被动局面。其次是处理量的任务不能使磨矿細度完全适合于浮选的要求,磨矿后仍有粒子呈各种中矿存在。此外是銅精矿含鋅較高,严重地影响着提高鋅回收率。铜精矿含鋅較高的主要原因是部分鋅金屬呈中矿存在而損失于銅精矿中;銅精矿中含鋅每提高1％,則影响鋅回收率下降2～2.5％;損失在銅精矿中的鋅金屬佔鋅总含量13～14％,超过
I plant in the past few years there are three major problems in production. First of all, the complexity of the cloth embedded in the ore, often produce variability in production, and thus grasp the conditions on the passive situation. Followed by the task of processing capacity can not be completely met the requirements of fining fine grinding flotation, there are still some particles in the ore after grinding there. In addition, high copper concentrate, zinc, seriously affect the recovery of zinc. The main reason for the higher zinc content in copper concentrates is the loss of part of the zinc metal in the presence of the intermediate ore and loss of copper concentrate. When the zinc content in the copper concentrate is increased by 1%, the zinc recovery rate is reduced by 2 to 2.5% Copper concentrate in the total zinc content of zinc accounted for 13 to 14%, more than