Study on suppression of the coal dust/methane/air mixture explosion in experimental tube by water mist
In order to develop highly effective and reliable measures to suppress the coal dust/methane/air mixture explosion frequently occurred in coal mine, the effect of the presence of methane on the coal dust explosion was investigated in this study. The flame propagation velocity and the explosion temperature were measured for explosion tests with the different methane concentration in the mixture. The flame evolution histories were also captured by high speed camera. The inhibiting efficiency of water mist was qualitatively studied and analyzed by explaining mechanism of gas and goal dust explosion. The results showed that water mist can efficiently decline the flame propagation velocity, reduce flame temperature, and change flame characteristics of gas and coal dust explosion. It can be concluded that water mist can effectively inhibit gas and coal dust explosion.
water mist gas coal dust explosion
Hao You Minggao Yu Ligang Zheng An An
School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
832-839
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）