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针对某铜选厂浮选工艺流程,采用中矿再磨工艺进行选矿试验,对比了不同中矿再磨钢球配比条件下的选矿效果。不同钢球配比条件下,新工艺的回收率不同,说明中矿再磨不同球比磨矿的针对性不同。运用筛析法、点测法对中矿磨前、磨后颗粒进行了分析,发现中矿磨后能有效的降低粗颗粒粒级的数量,解离度增加,中间粒级及细颗粒级产率增加。对新工艺的机理进行了分析。
Aiming at the copper flotation process in a copper processing plant, the ore dressing test is carried out by using the medium re-grinding process, and the beneficiation results under the condition of different medium-sized re-grinding steel balls are compared. Different steel ball ratio conditions, the recovery rate of the new process is different, indicating that different balls re-grinding ore grinding targeted at different. Using sieve analysis and spot measurement, the particles before and after grinding were analyzed. It was found that the quantity of coarse particles, the increase of the degree of dissociation, the increase of the size of intermediate particles and the production of fine particles Rate increased. The mechanism of new process is analyzed.