矿井掘进巷道入口火灾的数值模拟研究  

Numerical Simulation of Fire at Entrance of Excavation Roadway

作　　者：康文杰 王德明[1,2] 朱云飞 KANG Wen-jie;WANG De-ming;ZHU Yun-fei(School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China;Key Laboratory of Coal Methane and Fire Control of the Ministry of Education, Xuzhou 221116, China)

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221116 [2]煤矿瓦斯与火灾防治教育部重点实验室,江苏徐州221116

出　　处：《煤炭技术》2019年第3期92-94,共3页Coal Technology

基　　金：国家重点研发计划(2016YFC0801800)

摘　　要：以2010年重庆石壕煤矿掘进巷入口壁挂电缆火灾为背景,基于FDS火灾仿真软件对掘进巷入口处火灾的温度、气体浓度进行数值模拟研究。结果表明,受火源热风压作用,高温烟气浮升使巷道温度呈"上高下低"、沿程迅速衰减的分布特征,在远离火源的掘进面,温度可降至约50℃。烟气来临会使测点的O_2浓度迅速下降(16%)、CO浓度迅速升高(0.14%),是主要致命因素,掘进面的遇险矿工合理使用自救器和压风、压水管路规避致灾因子,可维持生命、等待救援。Taking the fire of cable on the wall at the entrance of excavation roadway in Shihao coal mine in 2010 as a background, the numerical simulation of temperature and gas concentration was studied based on FDS fire simulation software. The results show that the temperature decays rapidly along the length and the top temperature is higher than the bottom visibly due to the hot air pressure of combustion source. The temperature reduced to about 50 ℃ at the working face. The arrival of smoke will rapidly decrease the O2 concentration (16%) and increase the CO concentration (0.14%) at the measuring point, which are the major fatal factors. Miners at the working face should sustain their lives and wait for rescue with the support of SCSRs and air and water pipes to keep them away from fatal factors.

关 键 词：矿井火灾 煤矿安全 自救逃生 火灾模拟 

分 类 号：TD752[矿业工程—矿井通风与安全]