石港公司综采工作面高位钻孔抽采瓦斯技术

Gas Drainage Technology by High Level Drilling in Comprehensive Mining Face of Shigang Company

为降低阳煤集团石港公司15210工作面采空区的瓦斯浓度,通过Fluent软件建立15210工作面抽采瓦斯前后浓度的对比,研究该作面在未抽采时采空区瓦斯分布特征,发现大量瓦斯积聚在采空区上部。经研究决定,采用高位岩石钻孔来抽采采空区瓦斯,并对治理期间的瓦斯浓度进行检测,发现瓦斯浓度降低至安全范围内,可以正常工作。

In order to reduce the gas concentration in the goaf of 15210 working face of Shigang company of Yangmei group,the contrast of the concentration before and after the gas drainage was established by FLUENT software.The gas distribution characteristics of the goaf were studied when the goaf was not drained.It was found that a large amount of gas accumulated in the upper part of the goaf.Through the research,it is decided to use high-level rock drilling to extract the gas in the goaf,and detect the gas concentration during the treatment period.It is found that the gas concentration is reduced,and it can work normally within the safe range.