鹿台山矿2205综采工作面煤层瓦斯抽采技术

Coal Seam Gas Drainage Technology in the 2205 Fully Mechanized Mining Face of Lutaishan Mine

为实现煤矿瓦斯灾害的有效防治,以鹿台山矿2205综采工作面为工程背景,采用高、低负压瓦斯抽采系统进行煤层瓦斯抽采,高负压瓦斯抽采系统采用双侧顺层平行钻孔进行本煤层预抽,低负压瓦斯抽采系统采用定向高位钻孔、插管进行采空区瓦斯抽采。实施瓦斯抽采后,煤层瓦斯含量大幅度降低,2205综采工作面瓦斯得到了有效治理。

In order to realize the effective prevention and control of coal mine gas disasters,taking the 2205 fully mechanized mining face of Lutaishan Mine as the engineering background,the high and low negative pressure gas drainage system is used for coal seam gas drainage,the high negative pressure gas drainage system adopts bilateral bedding parallel drilling for pre drainage of the coal seam,and the low negative pressure gas drainage system adopts directional high drilling and intubation for gas drainage in goaf.After the implementation of gas drainage,the gas content in coal seam has been greatly reduced,and the gas in the 2205 fully mechanized mining face has been effectively controlled.