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全国统配煤矿自用煤年用量达1000多万吨。如果包括地方煤矿、乡镇煤矿的自用煤,这个数字恐怕还要翻两番。如果所有统配矿节约自用煤5％,就能节约50万吨左右,相当于一个中型矿井的年产量。而建设一个中型矿井需投资1亿元,时间要5～6年。煤矿节约自用煤是有潜力的,以平顶山矿务局为例,1981年以来推行自用煤包干节约有奖,三年节煤37万多吨,价值800多万元。煤炭系统节煤的一个重要途径是降低锅炉的能耗,提高热效率。为此,必须坚决淘汰一部分低效锅炉,同时对一部分锅炉实行必要的技术改造。煤矿本身还应尽可能多烧
National coal mine self-use amount of more than 10 million tons. If you include local coal mines, township coal mines for self-use coal, I am afraid this figure will quadruple. If all the coal mines to save 5% of self-use coal, you can save about 500,000 tons, equivalent to an annual output of medium-sized mines. The construction of a medium-sized mine need to invest 100 million yuan, time to 5-6 years. Saving coal for coal mines has potential. Taking Pingdingshan Mining Bureau as an example, since 1981, it has won a prize for self-use coal briquettes, saving more than 370,000 tons of coal over three years and worth more than 8 million yuan. Coal coal-saving system is an important way to reduce boiler energy consumption and improve thermal efficiency. To this end, we must resolutely eliminate part of inefficient boilers, while the implementation of the necessary part of the boiler technical transformation. The coal itself should also burn as much as possible