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煤矸石的大量堆放,不仅压占土地,而且影响生态环境。为了有效利用煤矸石,提高企业经济效益,试验采用阶段磨选,一粗-四精-两扫的浮选工艺,可获得产率39.77%、灰分品位25.86%、固定碳品位60.65%、固定碳回收率86.02%的精矿,指标较为理想。
A large number of stacked gangue, not only pressure on land, but also affect the ecological environment. In order to make effective use of coal gangue and improve the economic efficiency of the enterprise, the experiment adopts stage flotation, one coarse-four fine-two-sweep flotation process to obtain the yield of 39.77%, the ash content of 25.86%, the fixed carbon content of 60.65% The recovery rate of 86.02% concentrate, the index is more ideal.