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.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
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)
关键词
地下采矿
通风
烟气
扩散
数值分析
underground mining
ventilation
fume
diffusion
numerical analysis
