瓦斯的积聚,是煤矿中安全生产的一大隐患。任何地点的瓦斯达到一定浓度时,一旦遇到火源就会引起爆炸。即使体积比较小的瓦斯积聚,虽然不会引起大的瓦斯爆炸事故,但它可能成为引起煤尘爆炸的导火线。 根据现场情况的调查了解,造成瓦斯局部积聚的原因很多,主要有:供风量不足;供风量虽够,但局部地点如巷道高冒处等风 Gas accumulation, is a major hazard in the safe production of coal mines. Any place of gas reaches a certain concentration, the event of a source of fire can cause an explosion. Even if the accumulation of relatively small gas, although it does not cause a large gas explosion, but it may lead to coal-fired explosion fuse. According to the investigation of the situation on the ground, there are many reasons for the local accumulation of gas. There are many reasons for this: the shortage of air supply; the supply of air is enough, but the local locations such as high risk of roadway