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对我国煤矿2000~2012年间发生的144起瓦斯燃烧事故进行了统计,统计数据表明:瓦斯燃烧事故大多发生在乡镇煤矿,在一些地质条件复杂,瓦斯含量高的煤层,发生的概率大;采煤工作面和掘进工作面是瓦斯燃烧的常发地点;引燃瓦斯的点火源主要是电火花和放炮火焰;瓦斯燃烧频发的原因在于瓦斯的点火能量低,且燃烧范围广;井下瓦斯、氧气、火源耦合的概率大。针对不同类型的瓦斯燃烧事故给出了相应的治理措施。
The statistics of 144 gas burning incidents occurred in China’s coal mines between 2000 and 2012 show that the gas burning incidents are mostly occurred in the township coal mines and the probability is high in some coal mines with complex geological conditions and high gas content. Coal mining The working face and driving face are the frequent sites of gas combustion. The ignition sources of piloted gas are mainly electric spark and blasting flame. The reason of frequent gas burning is that the gas has low ignition energy and wide combustion range. The underground gas and oxygen , The probability of fire source coupling is big. According to different types of gas combustion accidents, the corresponding control measures are given.