钱家营矿瓦斯抽采优化措施分析与研究

Research and Analysis on the Gas Drainage Optimization measures in Qian Jiaying Mine

从钱家营矿工作面瓦斯抽采效果分析入手,对工作面煤层采取平行钻孔预抽,掘进工作面边掘边抽相结合,上隅角安装气动风机和风帐,同时配合原有采空区瓦斯处理方法,综合治理工作面瓦斯;采用二次封孔工艺,以提高瓦斯抽采量等措施解决该矿瓦斯抽采问题。

After analyzing Qianjiaying mine gas-drainage result. To solve problems of the gas-drainage and com-bined with the main source of combined coalface gas, which proposed the method of pre-pumped parallel gas drill-ing. And it proposed the method of excavating roadway when drainage gas in the heading face at the same time. Based on the old methods that include gas-drainage in the gob and upper corner, which proposed the method of installing pneumatic fan with the wind net, to dilute the gas in the upper corner. Used second hole sealing process in order to improve the amount of gas extraction that solved the problem of gas drainage in Qian Jiaying Mine.