摘要
为了保证九里山矿1508工作面采空区瓦斯治理效果,通过现场数据测定、实验考察和理论分析,研究了推进度、抽采负压、抽采管网等高位巷抽采关键参数。研究结果表明,工作面煤层越厚、推进度越快,瓦斯涌出量越大;孔抽期间理想抽采负压为25~30 kPa、巷抽期间理想抽采负压为5~10 kPa,高位巷并联支路及管路阻力会影响高位巷的抽采效果。
In order to ensure the gas control effect of the gob in the 1508 working face of Jiulishan Mine,the key parameters of high-level roadway extraction such as propulsion,extraction negative pressure and extraction pipe network were studied through field data measurement,experimental investigation and theoretical analysis.The research results showed that the thicker the coal seam of the working face,the faster advancing speed of working face,the greater the gas emission;the ideal suction negative pressure during hole extraction was 25~30 kPa,and the ideal extraction negative pressure during roadway extraction was 5~10 kPa.The parallel branch and pipeline resistance of high level roadway would affect the extraction effect of high level roadway.
作者
易书钢
张向磊
郭斌
Yi Shugang;Zhang Xianglei;Guo Bin(Institute of Science and Technology,Henan Jiaozuo Coal and Energy Co.,Ltd.,Jiaozuo 454000,China;Jiulishan Mine,Henan Jiaozuo Coal and Energy Co.,Ltd.,Jiaozuo 454000,China)
出处
《能源与环保》
2020年第7期1-4,10,共5页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
基金
国家自然科学基金资助项目(51504084)
河南省高等学校重点科研项目(19B440002)。
关键词
综放工作面
高位巷
工作面推进度
管网参数
fully-mechanized top-coal caving face
high level roadway
advancing speed of working face
pipe network parameters
