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在煤矿开采过程中,瓦斯泄露与爆炸一直是煤矿安全事故的主要原因。随着煤矿的开采深度增加,煤层透气性降低,从而影响煤矿瓦斯的抽采效率。因此,本文针对目前国内普遍存在的低透气性煤矿,详细分析了各种低透气性煤矿瓦斯抽采的技术原理和应用。并结合瓦斯抽采技术在东曲矿井的实际应用,表明目前低透气性瓦斯抽采技术在国内的广阔市场应用前景。
In coal mining process, gas leak and explosion have been the main causes of coal mine safety accidents. As the mining depth increases, the gas permeability of the coal seam will decrease, which will affect the gas drainage efficiency of the coal mine. Therefore, this paper analyzes the technical principles and applications of various low permeability gas coal mines in view of the current prevalence of low permeability coal mines in China. Combining with the practical application of gas drainage technology in Dongqu mine, it shows that the current low permeability gas drainage technology has a bright future in domestic market.