云锡某尾矿重选精矿再选试验

摘要

对云锡公司某尾矿库库内含锡尾砂离心重选产物的粒度组成,锡矿物的分布特点、物相、解离等情况进行了分析,重点对试样进行了再选试验.结果表明,重选产物经强磁脱铁、沉降脱泥、2粗1精1扫正浮选、1粗1精1扫反浮选、中矿顺序返回的闭路流程处理,可获得锡品位为4.28％、回收率为46.71％的锡石精矿,以及铁品位为36.79％、回收率为77.78％的铁磁性中间产物.%Analyzed the size composition of tin product separated by centrifugal gravity separation from yunnan tin corporation a tailings pond, and the distribution characteristic, phase,liberation of tin mineral, carried out the reelection test to the sample. The results show that from the gravity separation product can get tin concentrate with 4. 28% grade and 46.71% recovery, and ferromagnetic middlings product with 36.79% iron grad and 77. 78% recovery through the closed circuit of high intensity magnetic separation removing iron, settlement desliming, twice roughings once cleaning once scan-venging positive flotation, once roughing once cleaning once scanvenging reverse flotation, middlings return in order.