采空区调压技术在工作面瓦斯治理中的研究和应用

Research and application of goaf pressure adjustment technology in gas control of working face

在唐山矿通风系统布置的基础上,分析Y486外综放工作面通风压力与瓦斯涌出变化关系进行分析,研究了利用临近上部采空区及尾巷密闭进行泄放治理瓦斯技术;通过调整通风压力,迫使Y486工作面瓦斯向临近T1455采空区和Y486尾巷密闭运移,有效降低了Y486工作面瓦斯浓度,提高了Y486尾巷抽放浓度,保证Y486工作面安全生产。

Based on the ventilation system layout of Tangshan Mine, the relationship between Y486外fully mechanized working face ventilation pressure and gas emission change was analyzed, gas let out control technology using upper goaf nearby and tail roadway gasproof, adjusting ventilation pressure made Y486 working face gas move airtightly to T1455 goaf and Y486 tail roadway, which reduced gas content of Y486 working face, improved the gas drainage content of Y486 tail roadway and ensured the safe mining of Y486 working face.