综放工作面上隅角瓦斯治理数值模拟  

Numerical Simulation of Gas Control in Upper Corner at Fully Mechanized Caving Face

作　　者：张金山[1] 赵晓坤[1] 曾祥柱[1] 杨坡[1] 

机构地区：[1]内蒙古科技大学矿业研究院,内蒙古包头014010

出　　处：《煤炭技术》2015年第6期134-135,共2页Coal Technology

摘　　要：对比分析综放工作面U形通风和Y形通风对于治理工作面上隅角瓦斯的优缺点,利用Fluent对3D模型进行数值模拟,无论Y形还是U形,沿采空区走向方向瓦斯浓度逐渐增大,但是U形较Y形来说,采空区瓦斯浓度较大;上隅角瓦斯浓度超出允许范围;Y形通风能更好解决上隅角瓦斯积聚问题。Analysis of fully-mechanized caving U-type ventilation and Y- type ventilation for the advantages and disadvantages to control the upper corner gas management problem. Use the Fluent software to run the numerical simulation of 3D model of the Y-type and U-type. The conclusion is that: along the goaf towards the direction the gas concentration increases gradually, but U-type compared with Y-type, the concentration of goaf is bigger; the gas concentration in upper corner is beyond the scope allowed; Y-type ventilation can solve the problem of gas accumulation at upper corner better.

关 键 词：采空区 U形通风 Y形通风 上隅角 瓦斯积聚 

分 类 号：TD712[矿业工程—矿井通风与安全]