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针对煤矿井下采空区、采煤工作面、煤壁和顶板冒落坑等地方涌出的瓦斯汇入风流增加风流中瓦斯浓度而引起的局部瓦斯浓度超限,及甲烷氧化菌在煤体复杂多变的环境内易死亡或失去降解瓦斯能力的问题,结合矿井局部通风系统,主要指抽出式,研究了在煤矿瓦斯涌出源附近风流中来降解涌出的瓦斯,防止煤矿井下局部区域瓦斯浓度超限。设计并开发了模拟微生物降解煤矿风流瓦斯实验装置,分析研究了不同瓦斯浓度、不同菌液浓度及菌液与瓦斯不同接触面积,对菌液降解瓦斯能力的影响。
In view of the problems of local gas concentration caused by increase of gas concentration in the wind stream due to the influx of gas from coal mined areas, coal mining face, coal wall and roof caving pit, etc., and methane oxidation bacteria in coal complex In the changing environment, it is easy to die or lose gas capacity to degrade. Combined with the local ventilation system of mine, it mainly refers to the withdrawing type. It studies the gas that gushes down in the wind flow near the gas emission source of coal mine to prevent the gas in the local area Concentration limit. Design and development of simulated microbial degradation of coal mine gas methane experimental device, analysis of different gas concentrations, different concentrations of bacteria and bacteria and gas contact area, the bacterial liquid gas degradation ability.