杨村煤矿属于衰老矿井,各采煤面为煤柱及下分层工作面,周围采空区复杂、老巷穿梭,上下巷掘进期间经常与其它老巷交叉,工作面漏风严重。经验证,工作面掘进期间采用小炮掘进、老巷密闭及过巷段喷浆注水,回采时采用在采空区不对称注氮、调整通风系统等方式进行防灭火,对矿井残采阶段自然发火的防治具有良好效果。 Yangcun Coal Mine belongs to the aging mine. The coal mining faces are the coal pillar and the lower stratification face. The surrounding goaf is complex and the old lanes are shuttling. During the tunneling of the upper and lower lanes, they often cross with other old lanes, and the working face air leakage is serious. It has been verified that during the excavation of the working face, the use of small artillery tunneling, closing of old lanes and injection and injection of water through the tunnels are adopted. In the mining process, asymmetric nitrogen injection and adjustment of ventilation system are adopted to prevent and extinguish fires. Fire prevention and treatment has a good effect.