高寒矿井穿脉巷道掘进炮烟扩散规律的数值模拟  

Numerical simulation on the diffusion law of blasting fume during roadway tunneling across a vein in an alpine mine

作　　者：陈赞成[1] 杨鹏[1,2] 吕文生[1] 何磊[1] 门瑞营[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]北京联合大学,北京100101

出　　处：《北京科技大学学报》2011年第5期521-525,共5页Journal of University of Science and Technology Beijing

基　　金：国家科技支撑计划资助项目(No.2007BAB18B02)

摘　　要：根据高寒矿井穿脉巷道掘进的实际参数建立数值模型,分块划分计算网格,依据掘进进尺和风筒口距掘进工作面的距离,利用Fluent流体分析软件对不同工况条件下的炮烟扩散规律进行数值模拟.模拟结果表明:随着风筒口距掘进工作面的距离增加,CO排除的速度越慢;通风时间与穿脉长度和风筒口到掘进工作面的距离有一定的函数关系.According to the actual parameter of across vein roadway tunneling in alpine mine, the numerical simulation was set up, and the computation grids were piecemeal-divided. Referring to the tunneling footage and the distance between venting duct and heading face, the diffusion law of blasting fume under different operating modes was simulated by the Fluent fluid analysis software. The simulation results show that the slower the preclusion speed of CO is, the longer the distance between venting duct and heading face, and the ventilation time has a certain functional relationship between the length of across vein roadway and the distance from venting duct to heading face.

关 键 词：地下采矿 通风 烟气 扩散 数值分析 

分 类 号：TD72[矿业工程—矿井通风与安全]