脉动通风消除上隅角瓦斯积聚的理论分析  

Theoretical Analysis of Eliminating Gas Accumulation in Upper-Corner by Pulsed Ventilation

作　　者：杨胜强[1] 俞启香[1] 王凯[1] 张仁贵[1] 

机构地区：[1]中国矿业大学能源科学与工程学院,江苏徐州221008

出　　处：《中国矿业大学学报》2000年第6期571-575,共5页Journal of China University of Mining & Technology

基　　金：国家自然科学基金资助项目! (5 98740 2 7) ;国家"九五"重点科技攻关项目! (96-2 2 3 -0 1-0 5 -0 4) ;煤炭科学基金资助项目! (96

摘　　要：针对“U”型采煤工作面上隅角瓦斯积聚问题 ,建立了脉动通风作用下上隅角风流动力学极坐标方程及瓦斯传质方程 ,详细分析了脉动通风作用下上隅角瓦斯的传质运移过程 ,论述了瓦斯扩散传质机理 ,并通过现场试验验证了脉动通风解决上隅角瓦斯积聚是有效。Aiming at the problem of gas accumulation in upper corner of U shape coal faces, the air flow dynamics equation and gas mass transmission equation under pulsed ventilation were set up. The transport process of gas was analyzed in detail, and the mechanism of gas diffusion and mass transmission in the upper corner of coal faces under pulsed ventilation was discussed. Field experiment has proved that the pulsed ventilation method is effective and feasible.

关 键 词：上隅角 瓦斯积聚 脉动通风 瓦斯扩散传质机理 动力学分析 

分 类 号：TD712.54[矿业工程—矿井通风与安全]