煤炭洗选一般是指从煤中去除矸石或其他杂质的过程。煤炭洗选一般是利用煤与矸石的物理性质不同来进行的，在不同密度或特性的介质中使煤与矸石(杂质)分开。
煤炭洗选（Coal Preparation） 煤炭经洗选可显著提高燃烧效率，大大减少污染物排放。入洗1 亿吨原煤可减少燃煤排 放的二氧化硫100 一150 万吨，成本仅为烟气洗...
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煤炭开采和洗选业 mining and washing of coal industry ; Mining and Washing of Coal
Coal sludge is the residue raised during coal washing. Its granularity is fine of less than 0.5mm and it has stronger water-holding property.
洗煤泥是煤炭洗选过程中的废弃物,颗粒细(粒度小于0.5mm)且有较强的持水性。
参考来源 - 燃用煤泥的循环流化床锅炉的设计与性能分析研究·2,447,543篇论文数据，部分数据来源于NoteExpress
我国煤炭洗选加工相对落后，煤炭加工设备的利用率低。
Process of coal washing falls behind in our country. The utilization ratio of the processing equipments is low.
应加强煤中硒在煤炭洗选、气化等加工和利用过程中迁移转化规律的研究。
The studies on migration and evolution of selenium during preparation and gasification of coal should be strengthened.
在煤炭洗选过程中产生的煤泥虽然具有一定热值，但因颗粒细、含有大量的有害物质而被废弃堆存；
Slurry which is produced during the coal washing process, has high calorific value, but contains a lot of hazardous substances;
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