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将某选厂的磁选尾矿和反浮选尾矿按实际生产的产率比例混合后,进行铁矿物的回收试验。利用不同矿物间的相互载体作用进行反浮选,采用Slon-100周期式脉动高梯度磁选机进行抛尾,极大地提高了分选指标。采用两段磨矿,两段强磁选,两段弱磁选,反浮选工艺,试验最终得到产率7.54%,品位65.35%,回收率25.57%的铁精矿,以及产率8.69%,铁品位29.30%,回收率13.43%的中矿,最终尾矿品位为13.68%,与实际生产相比,精矿产率提高2.74%,回收率提高6.50%。
The magnetic separation of tailings and anti-flotation tailings of a selected plant according to the actual production ratio of mixed, the iron ore recovery test. Flotation was carried out using the interaction between different minerals, and the tailing was performed by Slon-100 pulsating high-gradient magnetic separator, which greatly improved the sorting index. Two-stage grinding, two strong magnetic separation, two weak magnetic separation, anti-flotation process, the final test yield 7.54%, grade 65.35%, 25.57% recovery rate of iron concentrate, and the yield of 8.69% The iron ore grade is 29.30% with the recovery rate of 13.43%. The final tailings grade is 13.68%. Compared with the actual production, the concentrate yield increases 2.74% and the recovery rate increases 6.50%.