新集二矿210108工作面瓦斯抽采技术研究

Research on Gas Drainage Technology of 210108 Working Face of Xinji 2 Coal Mine

为了解决新集二矿210108工作面瓦斯涌出量大的难题,并根据1#煤层赋存条件和瓦斯分布规律,设计了210108工作面瓦斯抽采系统。该系统主要以本煤层抽采为主,采空区抽采为辅,预抽、边采边抽相结合的综合抽采方法。研究结果表明,工作面瓦斯抽采效果显著,210108工作面回采期间共抽排瓦斯总量8.415万m3,有效解决了工作面瓦斯超限问题,保证了210108工作面的安全回采。

In order to solve the problem of huge gas emission in 210108 working face of Xinji-2 colliery, the gas extraction system has been designed according to the conditions of coal seam and gas distribution. The system is mainly based on the extraction of coal seam, and combined extraction methods adopted in the goaf. The results show that the extraction system is effective for the gas drainage, with extracted gas total 8.415 million m3, which effectively solve the problem of the working face gas overrun, and guarantee the safety for production.