Different gas explosion mechanisms and explosion suppression techniques
Gas explosions are characterized principally in terms of two types according to the mechanism of combustion: deflagrations and detonations; detonations can be further subdivided into unstable detonations and stable detonations. All these three kinds of explosions are possible in confined underground coal mine roadways, so corresponding explosion suppression techniques shall be available. The effectiveness of water barriers commonly used in todays coal mines is in doubt in views of catastrophic gas explosions occurring from time to time, in this paper, different gas explosion mechanisms are theoretically investigated; the adequacy of current explosion suppression measures is explored. Along with the explosion suppression materials generally used in other process industries, their possible applications in coal mine roadways are discussed. It is concluded that porous medium is a promising material. If they are used with water barriers together, explosion accidents may be diminished to the minimum and production safety be guaranteed to the maximum.
gas explosions deflagration detonation water barriers porous medium
ZHANG Ruming NIE Baisheng HE Xueqiu WANG Chao ZHAO Caihong DAI Linchao LI Qian LIU Xinna LI Hailong
School of Resource and Safety Engineering, China University of Mining & Technology (Beijing) Beijing 100083, 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
1380-1385
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）