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中煤解离再选是炼焦煤资源高效开发利用的重要组成部分。文章首先简述了煤中主要矿物质的特点,分析了煤的解离与连生的关系及其对分选的影响。随后介绍分析了国内现有的几种中煤解离再选工艺,主要包括中煤破碎解离-粗煤泥分选方法回收精煤工艺、中煤磨矿解离-浮选回收精煤工艺、中煤超细磨解离-絮团浮选法回收精煤工艺。最后介绍了几种适用不同产品粒度要求的破、磨设备。
Coal dissociation and re-election is an important part of efficient development and utilization of coking coal resources. The article first briefly describes the characteristics of major minerals in coal and analyzes the relationship between coal dissociation and intergrowth and its impact on the separation. Then introduced and analyzed several domestic existing domestic coal dissociation and re-election process, including coal crushing and dissociation - coarse slime separation method for recovery of coal, coal mining dissociation - flotation recovery of coal technology , Ultrafine grinding of coal from the - floc flotation recovery of coal technology. At last, it introduces several kinds of broken and grinding equipment which are suitable for different product granularity requirements.