泡沫陶瓷对瓦斯爆炸过程影响的实验及机理  

The experiments and mechanism of foam ceramics affecting gas explosion process

作　　者：聂百胜[1] 何学秋[1] 张金锋[2] 谷小敏[1] 胡铁柱[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院 [2]河北科技大学环境科学与工程学院,石家庄050018

出　　处：《煤炭学报》2008年第8期903-907,共5页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(10672175);“十一五”科技支撑计划资助项目(2007BAK22B05);爆炸科学与技术国家重点实验室开放基金资助项目(KFJJ05-1);教育部新世纪优秀人才支持计划资助项目(NCET-07-0799);北京市科技新星计划(2006A081)资助项目

摘　　要：为了对煤矿瓦斯多次爆炸和连续爆炸实现阻隔爆,利用建立的瓦斯爆炸实验系统,研究了A l2O3和SiC两种材质的泡沫陶瓷对瓦斯爆炸过程的影响规律,利用SEM技术对泡沫陶瓷的细观结构进行了测试,分析了其对瓦斯爆炸的作用机理.结果表明:泡沫陶瓷对瓦斯爆炸最大超压衰减作用明显,最大衰减可达到50%;泡沫陶瓷在细观上具有三维连通网络结构,可以淬熄瓦斯爆炸火焰,抑制爆炸应力峰值和爆炸声波.In order to find new methods for suppression and isolation of continuous and many-times gas explosions, the rules of two kinds of foam ceramics composed by Al2O3 and SiC affecting gas explosion was studied in laboratory with gas explosion experimental system and micro-structure of foam ceramics was measured by SEM. Moreover mechanism of foam ceramics affecting gas explosions was analyzed. The results show that the foam ceramic attenuates obviously the largest overpressure of gas explosion, which can weaken about 50 percents at the most extend and the foam ceramic has three dimensions connective micro-network structures to quench gas explosion flame and weaken pressure peak value and shock wave of gas explosion.

关 键 词：泡沫陶瓷 瓦斯爆炸 阻隔爆 

分 类 号：TD712.7[矿业工程—矿井通风与安全]