综放工作面瓦斯综合治理技术的研究与应用

摘要

余吾煤业为高瓦斯矿井，矿井绝对瓦斯涌出量可以达到300 m3/min，严重制约着工作面的安全高效生产。为从根本上解决这一难题，以S2206工作面为试点，通过在工作面采取煤层60º顺层钻孔、钻场裂隙带钻孔、上隅角插管钻孔等多种方法抽采瓦斯，对工作面瓦斯实现分源立体式抽采，成功的降低了工作面瓦斯浓度，解决了瓦斯超限问题，为工作面的安全高效生产提供了保证。%In the high gas mine in Yuwu Coal Co., Ltd., its absolute gas emission could reach 300 m3/min, which seriously restricts the safe and efficient production on the mining face. To solve the problem, taking S2206 mining face as pilot, we used 60oborehole along coal seam, borehole in auger field fissure zone, borehole with incubation in upper corner angle, and other methods for gas drainage. The different-source structural integrated gas drainage was realized, which effectively reduced the gas concentration, solved the gas exceeding problem, and guaranteed the safety and efficient production on the working face.