摘要
为预防青东煤矿的局部瓦斯积聚造成瓦斯事故,本文根据二百多处本矿区在井下实际测得瓦斯压力数据,通过朗格谬尔方程换算,根据各测点对应的瓦斯含量,得出井田内部分区段存在局部富集现象。同时在全区勘探阶段通过解吸法对瓦斯含量进行了测定,结果表明:区内7、8、10主采煤层瓦斯含量较低,均在8 m3/t以下。根据近几个月来本矿井7、8、和10主采煤层的井下瓦斯涌出量情况,7煤和8煤具有较大的瓦斯涌出量,10煤层瓦斯涌出量较少,绝对瓦斯涌出量均小于40 m3/min,可知本矿井为低瓦斯矿井。
To avoid gas accident caused by local gas accumulation in Qing Dong coal mine, this paper showed that there was some local enrichment in certain section of the minefield by means of Langmuir Equation conversion, which was based on gas content corresponding to each measuring point, according to more than 200 data of the actual gas pressure measured under the shaft in the minefield. The content of gas was measured during whole area exploration stage through desorption, and the result showed that the gas content of the 7, 8 and 10 coal seam was lower than that of 8 m3/t. In the light of the coal mine gas emission in the 7, 8, and 10 coal seam in recent months, the amount of gas emission of the 7 coal and 8 coal was large, and the gas emission of the 10 coal seam was small. The absolute gas emission was less than 40 m3/min, so it is known that this mine is a low gas mine.
出处
《矿山工程》
2018年第1期16-24,共9页
Mine Engineering
