煤层注水技术的应用

Application of Coal Seam Infusion Technique

回采工作面通过采用煤层注水挤排瓦斯,降低了回采工作面在割煤期间粉尘量,改善了工作面及上风巷恶劣环境,降低了回采时瓦斯涌出量,使工作面回风流瓦斯浓度小于临界状态,提高了回采工作面生产率,煤层注水工作面得以开展。

Through infusing water into the coal bed to push out the gas, the dust amount in the coal - mining face can be reduced , the poor environmental condition in＂ the working face and in the laneway can be improved, the gas flux can be decreased , and thus the gas density in the wind flow will become lower than the critical level, and finally the productivity in the working face will be boosted, the working face with coal layer water - infusing project will be developed well.