防瓦斯、防灭火技术在煤矿中的应用

Application of gas and fire prevention technology in the coal mine

针对高瓦斯易自燃厚煤层煤矿在综采放顶煤开采方式下存在煤尘量大、瓦斯涌出量大、易发生火灾等缺点,对该开采方式下的防瓦斯、防灭火技术进行了深入探讨。首先对矿井工作面瓦斯、火灾事故发生的影响因素进行了具体分析;其次根据工作面回采不同时期的具体特点提出了针对性的防瓦斯、防灭火技术;最后对实际防治效果进行了总结与分析。目前各项防治技术已应用到综采工作面,现场实际防治效果很好,大大降低了工作面的火灾事故发生率及瓦斯浓度,具有一定的应用借鉴价值。

In view of the shortcomings of high gas and spontaneous combustion thick coal seam coal mines in the fully mechanized caving coal mining method,there is a large amount of coal dust,a large amount of gas gushing,and a fire-prone technology.discuss in depth.Firstly,the factors influencing the occurrence of gas and fire accidents in the coal mining face are specifically analyzed;secondly,the targeted gas prevention and fire extinguishing technologies are proposed according to the specific characteristics of the mining face in different periods;finally,the actual prevention and control effects are summarized and analyzed.At present,various prevention and control technologies have been applied to fully mechanized coal mining face.The actual prevention and control effect on site is very good,which greatly reduces the fire accident rate and gas concentration of the coal face.It has certain application reference value.