By using the process of discarding tailings with shaking table, the rough concentrate with the yield 49.

采用摇床抛尾工艺流程，可得到精矿产率49。

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Test research of discarding coarse tailings in new technological flowsheet consisting of two stage continuous grinding-gravity separation-magnetic separation-reverse flotation is described.

介绍了东鞍山矿石两段连续磨矿、重选-磁选-反浮选新工艺流程中粗粒部分抛尾试验研究。

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Magnetic pulleys are used in series for dry separation, with the first pass dry separation to ensure a 8%-10% tailings discarding and the second pass to ensure an over 98% recovery.

利用磁滑轮串联干选，第一道磁滑轮干选保抛尾8％-10％、第二道磁滑轮干选保回收率大于98％，将改造后干选设备和工艺嵌入现有的三段一闭路破碎筛分工序中。

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