摘要
现场实测内蒙古乌海矿区现有煤田火区内的气体组分发现,火区内CO_2、CO气体为浓度最大的2种有害气体,且CO_2气体浓度超过CO气体25倍以上。根据适当的火区气体侵入预警标志气体应具备的灵敏性、普遍性、可测性、早期显现性4个基本特征,并利用组分浓度质量守恒定律建立了火区气体侵入最小漏风强度计算公式,认为CO_2气体是最适合的预警火区气体侵入工作面的标志气体,且现场火区气体侵入实例证明了这一结论。
Through on-site measurement of gas components in the existing coalfield fire zone in the Wuhai mining area of Inner Mongolia,it was found that CO 2 and CO were the two highest concentration harmful gases in the fire area,and the concentration of CO 2 is more than 25 times higher than that of CO.According to the four basic characteristics of sensitivity,universality,measurability and early manifestation of the gas which should be possessed by the appropriate early-warning signs of gas intrusion in the fire area,by using the law of conservation of component mass concentration,the formula for calculating the minimum air leakage intensity of gas intrusion in fire area was established.CO 2 gas was considered to be the most suitable indicator gas for the early warning of gas intrusion into the working surface of the fire area,and the on-site gas intrusion in the fire area has proved this conclusion.
作者
师吉林
Shi Jilin(Shenyang Research Institute,CCTEG,Fushun 113122,China)
出处
《能源与环保》
2019年第4期46-49,53,共5页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
关键词
煤田火区
火区气体
气体侵入
预警
标志气体
CO2
coalfield fire area
gas in fire area
gas invasion
warning
indicator gas
CO 2
