Abstract:This paper studies the comprehensive gas control technology used in the high gas mining face of low permeability thick coal seam in Longquan Coal Mine. The practical results show that through implementation of this technology, the gas concentration of the upper corner and the return air flow in the working face is kept below 0.3%, and the gas extraction rate is above 60%, which successfully solves the problem of gas overrun in the high gas mining face of low permeability thick coal seam.
韩思华1,刘树轮2. 低透气性厚煤层高瓦斯回采工作面瓦斯综合治理技术研究[J]. 煤炭与化工, 2023, 46(5): 108-111.
Han Sihua1, Liu Shulun2. Research on comprehensive gas control technology in high gas mining face of low permeability thick coal seam. CCI, 2023, 46(5): 108-111.