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我矿是一个年产不到一千吨的小矿,整个选矿流程是合并成一个料流进行精选的,因此,尾矿品位的多少随矿石入选品位的高低和入选矿量(粗精矿)的大小而变化。当矿石入选品位大于3%,入选矿量大于12吨/时时(流程采用三次破碎,三次吸选),尾矿品位则上升到1%以上,使选矿回收率变低。我们参照了兄弟矿山的经验结合我矿生产实际,自制了一台简易空气通过式分选机(如
As mine is a small mine with an annual output of less than 1000 tons, the entire beneficiation process is combined into one stream for selection. Therefore, the tailings grade varies with the grade selected for the ore and the amount of beneficiation (coarse concentrate ) The size of the change. When the ore grade is more than 3%, the ore dressing amount is more than 12 tons / hour (the process adopts three times of crushing and three times of suction), the tailings grade will rise to over 1%, making the ore dressing recovery rate lower. With reference to the experience of brothers and mines with mine production practice, we made a simple air through the sorting machine (such as