近年来国内煤矿发生了几起带来灾难性后果的甲烷和煤尘爆炸事故。在一定意义上来讲,恰巧是由于采用了高效率的采煤机组,加剧了煤层碎裂,从而造成瓦斯和煤尘涌入巷道,而用通风,洒水,抽放瓦斯和煤层注水等方法却未能解决问题,大量瓦斯和粉尘进入矿井大气,煤尘又助长了 In recent years, several catastrophic methane and coal dust explosions have taken place in domestic coal mines. In a sense, it happens to be due to the adoption of high-efficiency coal-mining units that exacerbate the fragmentation of coal seams, resulting in the influx of gas and coal dust into the roadways. However, ventilation, sprinkling, gas drainage and coal seam water injection have failed Can solve the problem, a lot of gas and dust into the mine atmosphere, coal dust has contributed to