摘要
采空区自燃“三带”划分是预防自然发火的基础工作,在利民煤矿Ⅱ011602工作面回风巷敷设束管(2个测点)监测采空区气体变化,采用氧浓度指标获得了采空区自燃“三带”范围,散热带:0~23m,氧化带:23~110m,窒息带:大于110m。依据煤的最短自燃发火期和自燃“三带”范围,计算获得的工作面月最低推进速度为54m。研究结果能够为制定采空区防灭火措施提供一定依据。
The division of spontaneous combustion“Three-zone”in goaf is the basic work to prevent spontaneous combustion.The gas change in goaf(2 measuring points)was monitored by laying bundle pipe ofⅡ011602 working face in Limin coal mine.The spontaneous combustion“Three-Zone”range of in goaf is obtained by using oxygen concentration index.The heat dissipation zone is 0-23 m,the oxidation zone is 23-110 m,and the asphyxiation zone is more than 110m.According to the minimum spontaneous combustion period and the spontaneous combustion“Three-Zone”range,the minimum monthly propulsive speed of working face is calculated to be 54 m.The research results can provide certain basis for formulating fire prevention and extinguishing measures in goaf.
作者
陈新
李亚斌
CHEN Xin;LI Yabin(Limin Coal and Char Company Limited,Wuhai Energy Company,Eerduosi,Inner Mongolia 016064,China)
出处
《华北科技学院学报》
2019年第4期27-29,共3页
Journal of North China Institute of Science and Technology
关键词
采空区
自然发火
自燃“三带”
氧气浓度
goaf
spontaneous combustion
spontaneous combustion“Three-Zone”
Oxygen density
