论文部分内容阅读
近几年来,不少矿井先后相继报废,一是解放后三十二年来,由于国家建设急需要煤,加大开采强度,使有些矿井提前完成使命,二是矿井的回采率低,采损各半,矿井寿命缩短,由此椎算,全国若年产A亿吨原煤,国家就要兴建年产能力为2A亿吨的新井.这不仅耗费了国家大量资金,而且还要浪费国家很多宝贵的煤炭资源.再考虑每年能源消费的平均递增率,那末新井建设的任务就更重了.我们平顶山矿区的煤层贮存稳定,藏量丰富而著称,但矿井回采率也不
In recent years, many mines have been scrapped one after another, one after 32 years since liberation, due to the urgent need for coal construction in the country, increase mining intensity, so that some mines completed their mission ahead of schedule, and second, low recovery rate of mines, Half, the shortened life expectancy of the mine, which according to this calculation, if the national annual output of 100 million tons of raw coal, the state will build a new annual capacity of 200 million tons of new wells.This not only cost a lot of state funds, but also waste a lot of the country’s precious coal Resources.And then consider the average annual rate of increase in energy consumption, then the construction of new wells even heavier.We Pingdingshan coal seam storage stability, rich reserves known, but the mine recovery rate is not