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瓦斯在煤体和围岩中,以游离和吸着状态存在,其储存取决于储存空间的体积、瓦斯压力和温度。各种状态的瓦斯是处在不断的动平衡之中,在一定条件下又具有相对稳定性,外界条件的变化使这种稳定性遭到破坏。本文针对矿井瓦斯来源和活动特点,根据瓦斯爆炸的上、下限,推导瓦斯爆炸的时间和范围,对指导煤矿安全生产与管理具有重要的现实意义。
Gas in the coal and rock in the free and adsorption state exists, its storage depends on the volume of storage space, gas pressure and temperature. The gas of various states is under constant dynamic balance and has relative stability under certain conditions. The change of external conditions makes the stability destroyed. According to the gas source and activity characteristics of mine, according to the upper and lower limits of gas explosion, the time and range of gas explosion can be deduced. It has important practical significance to guide coal mine safety production and management.