The results showed that: the final concentrate did not be improved after crude concentrate was screened by magnetic screening;
结果表明：再磨后的一段精矿经磁筛精选，最终精矿铁品位未能提高；
Based on the processing flow of Dashihe separation mill, using spiral sluice, the possibility of obtaining final concentrate under coarse primary grinding is searched for.
探索大石河选厂在生产流程的基础上，应用螺旋溜槽，获取粗磨后最终精矿的可能性。
In connection with Meishan Iron for sorting, the final concentrate grade can reach 53.74%, the operating rate was 64.61%, higher than the selected plants on the separation indexes.
针对选别梅山铁矿，其最终精矿品位可以达到53.74%，作业回收率为64.61%，高于选厂分选指标。
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