摘要
为实现高瓦斯矿井低瓦斯状态下开采,提出一套以煤层瓦斯超前预抽、边采边抽及采空区抽采为主的瓦斯综合治理技术。详细介绍保德煤矿81305综放工作面瓦斯综合治理技术及措施,通过具体实践,详细记录本煤层采前预抽、上下行通风切换、采空区埋管抽放、均压措施、设置导风帘和负压喷雾、合理分配风流、及采终封闭等瓦斯综合防治措施。结果表明:实现81305工作面抽排瓦斯量合计1854.91万m^(3),综合抽放率达到81.07%,取得良好应用效果。通过采用多种抽、排方式相结合的瓦斯综合治理技术,可使保德煤矿综放工作面回采期间瓦斯浓度安全可控。
In order to realize mining in high gas mines in low gas states,a set of comprehensive gas treatment technology based on over-pre-pumping of coal seam gas,pumping while mining,and pumping and mining in the goaf area was proposed.The comprehensive gas treatment technology and measures for 81305 comprehensively drained working face in Baode Coal Mine were introduced,and the comprehensive gas treatment measures were recorded in detail,such as pre-pumping before mining of the present coal seam,switching between downdraft and updraft,pumping and drainage by buried pipeline in goaf area,pressure equalizing,air guide curtain and negative pressure spray setting,rationally distributed air flow,and closing at the end of mining.The results show that the volume of the gas pumping and drainage in the 81305 working face has reached a total of 18.5491 million m^(3),and the comprehensive pumping and drainage rate has reached 81.07%,indicating excellent application effects.The comprehensive gas treatment technology combining various pumping and drainage methods can make the gas concentration in the comprehensively drained working face in Baode Mine safe and controllable during mining.
作者
袁保发
YUAN Baofa(National Energy Chongqing Wanzhou Electric Power Co.,Ltd.,Chongqing 404100,China)
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2024年第S01期109-114,共6页
China Safety Science Journal
关键词
高瓦斯矿井
综放工作面
瓦斯综合治理
矿井通风
瓦斯抽放
high gas mines
comprehensively drained working face
comprehensive gas treatment
mine ventilation
gas pumping drainage
