高瓦斯突出矿井火区启封瓦斯排放技术研究

Study on Gas Drainage Technology for Fire-area Opening in High Gas Outburst Coal Mine

煤与瓦斯突出矿井火区启封时,为保证高浓度瓦斯安全快速排放,研究采用矿井瓦斯抽放系统对封闭区域内的高浓度瓦斯进行排放,同时向封闭区域注氮实现对高浓度瓦斯的置换,并在瓦斯排放管路中安装CH4、CO、温度在线监测探头,随时掌握封闭区域内火势的发展状况,为瓦斯安全排放及火区的安全启封提供技术保障。

To guarantee the safety and high rate emission of high concentration gas,gas drainage system was applied to drain the high concentration gas in closed area of coal mine,into which nitrogen were injected for replacement,online monitoring probes for CH4,CO and temperature were set in gas drainage pipeline,to control the development situation of fire in real time,and provide technical support for the safe gas drainage and fire- area opening.