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所谓脏杂煤,是指矿井在掘进煤岩、半煤岩的过程中以及在清理井下巷道、井底车场时所产生的煤与杂质的混合物。目前,我国煤炭企业中有相当一部分有回收价值的脏杂煤被抛在了井下或矸石山上,造成了煤炭资源的巨大浪费,造成了严重的环境污染和安全隐患。因此,对脏杂煤的回收与利用具有重要的经济效益和社会效益。
The so-called dirty miscellaneous coal, refers to the mine in the process of heading coal and semi-coal rock, as well as in the clean-down roadway, bottom-line yard when the resulting mixture of coal and impurities. At present, a considerable part of the coal mines in our country have dirty and miscellaneous coal with recycling value thrown in the underground or gangue hill, resulting in a huge waste of coal resources, causing serious environmental pollution and potential safety problems. Therefore, the recycling of dirty coal has important economic and social benefits.