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工业“三废”(废渣、废水、废气)未经处理而排放,是造成环境污染的主要原因。但“三废”中有不少有用物质可供提取,不少能量可供利用。煤矿“三废”排量很大,处理利用却存在不少问题。另一方面,煤矿过去长期只生产单一产品(煤炭)作为基本原料供给社会,价格低廉,市场统得较死,致使大部分企业形成了历史性亏损经营。加之,煤矿工作条件差,安全威胁大,劳动强度大,环境条件差,更使其社会形象受到了损害。湖南的煤矿,除存在上述普遍问题外,尚因地质条件十分复杂、井型小、万吨掘进率高、企业分散等,相对来说,“三废”排量更大;而且亦因地质条件限制,机械化程度难于提高、全员效率低,坑木消耗大等,使吨煤成本增高,企业始终在亏损局面下坚持煤炭生产。因此,处理、
Industrial “three wastes” (waste residue, waste water, exhaust gas) discharged without treatment, is the main cause of environmental pollution. However, “three wastes” there are many useful substances available for extraction, a lot of energy available. Coal mine “three wastes” displacement, treatment and utilization, but there are many problems. On the other hand, in the past, coal mines only supplied a single product (coal) to the society as a basic raw material for a long period of time. The prices were low and the market was dead. As a result, most of the enterprises formed a historic loss-making business. In addition, poor working conditions in coal mines, security threats, labor intensity, poor environmental conditions, but also make its social image has been harmed. In addition to the above common problems, the coal mines in Hunan still have a relatively large displacement because of the complex geological conditions, small well size, high drilling rate of 10,000 tons and diversification of enterprises. However, due to the limitation of geological conditions , The degree of mechanization is difficult to improve, full efficiency, pits and other expensive, so that the cost of tons of coal increased, the business has always insisted on the situation of loss of coal production. Therefore, handling,