屯兰矿18402工作面瓦斯综合治理技术措施

Technical Measures for Gas Comprehensive Control in 18402 Working Face of Tunlan Coal Mine

本文以屯兰矿18402工作面为例,研究提出并实施了工作面通风措施优化、本煤层瓦斯抽采、上下邻近层瓦斯抽采和采空区瓦斯抽采等综合瓦斯治理技术措施。上述技术措施实施后,18402工作面的瓦斯抽采率达到84.3%,回风流和回风隅角的瓦斯浓度控制在规程规定范围以内,保证了工作面安全回采。

Taking 18402 working face of Tunlan Coal Mine as an example, this paper puts forward and implements comprehensive gas control measures such as optimization of ventilation measures, gas drainage of coal seam, gas drainage of upper and lower adjacent layers and gas drainage of goaf. After the implementation of the above technical measures, the gas drainage rate of 18402 working face reached 84.3%, and the gas concentration of return air flow and return air corner was controlled within the scope of regulations, which ensured the safe mining of working face.