利用高浓度瓦斯窒息开区火源技术研究

Study on Utilizing High -concentrat ion Gas to Stifle Fire Source in Mined -out Area

白皎矿属高瓦斯极近距离煤层群开采,处理因煤层自然发火引起的连续瓦斯爆炸难度大。经采取调整通风系统,将采空区内大量高浓瓦斯以极快的速度调到火源点,迅速窒息采空区火源,防止瓦斯连续爆炸和浮煤重新氧化发火的技术,获得了显著的经济、安全和社会效益。

Baijiao mine belongs to high gassy mine practicing the mining of group o f seams with extra -short intervals,so it is more difficult to deal with continuous gas ex-plosions caused by spontaneous comb ustion of coal seams.A new fire -extinguishing technology,which is by regulating ventilation system and rapidly introducing a large amount of high -concen-tration gas in gob area to the fire sou rce to stifle fire source in gob area and prevent continuous gas expl osion and re -oxidation of residual coal ,has successfully ach ieved economic,safety and social benefits,so it is wealth to be spread and applied in coal mines.