在煤矿生产过程中,最大的安全隐患是瓦斯事故。预先抽放煤层气体是防止瓦斯事故的根本性措施。对预抽瓦斯加以利用,消除排放大气中对环境造成的污染,创造经济效益,是保证煤矿安全生产,实现减污提效综合治理的有效途径。辽源矿业集团梅河煤矿利用抽采出的煤层气,实现低浓度瓦斯发电取得了良好的经济效益和社会效益。 In the coal production process, the biggest safety hazard is gas accident. Pre-drainage of CBM is a fundamental measure to prevent gas accidents. Pre-drainage gas to be used to eliminate emissions of atmospheric pollution caused by the environment and create economic benefits, is to ensure safe production of coal mines to achieve an effective way to comprehensively reduce pollution and improve efficiency. Coal Mine of Liaoyuan Mining Group Mehe uses extracted CBM to achieve low concentration gas power generation has achieved good economic and social benefits.