综采回风隅角瓦斯抽放效果探究

Research on gas drainage effect of return corner in fully mechanized mining face

通过对寸草塔煤矿瓦斯抽放管路之"三通"深入切顶线以内的距离长短,对综采回风隅角的瓦斯大小的影响,得出了瓦斯抽放效果最佳的距离,为该矿22107综采工作面瓦斯抽放设计提供了科学依据,确保了工作面的安全生产。

By analyzing the influence of the distances that three links joints of the gas extraction pipelines extended into goaf to the quantity of gas at the return corner of fully mechanized mining face, the optimal distance of gas drainage was realized. The result pro- vides scientific basis for the gas drainage design at No22107 fully mechanized mining face and guarantees the safety production of min- ing face.