基于CFD的独头巷道排炮烟通风参数优化的 数值模拟研究  

Numerical Simulation on Optimization of Blasting Smoke Ventilation Parameters in Blind Roadway Based on CFD

作　　者：马东华 左淳 李智谋 张书刚 安云龙 MA Dong-hua;ZUO Chun;LI Zhi-mou;ZHANG Shu-gang;AN Yun-long(China Nuclear 25th Construction Co.,Ltd.,Changsha 410000,China)

机构地区：[1]中核二十五建设有限公司,长沙410000

出　　处：《价值工程》2023年第17期103-107,共5页Value Engineering

摘　　要：为研究独头巷道爆破后压入式通风炮烟运移规律,以衢州市某地下工程无轨大断面独头掘进巷道为研究对象,采用CFD方法对独头巷道内炮烟运移进行数值模拟,结果表明:①风筒安装高度、直径和出风口距掘进面的距离等条件一定时,增加通风风量,会降低CO浓度排至国家限制值以下的时间。②风筒安装高度、直径和出风口速度等条件一定时,风筒出风口与掘进面的距离介于10~13m为排炮烟的最优距离。③独头巷道长度大于600m时,为保证工作人员的工作安全,安全通风时间应在排炮烟风量计算公式确定的通风时间基础上增加10min。The movement of blasting smoke in blind roadway is numerically simulated using the CFD method in order to study the movement law of blasting smoke after blasting in blind roadway,using the trackless large section bl roadway of an underground project in Quzhou as the research object.As a result of the findings,we can conclude that:①when the installation height of air duct,straight diameter and the distance between air outlet and heading face are certain,increasing the ventilation air volume will reduce the time for CO concentration to be discharged below the standard.②When the installation height,diameter and air outlet speed of the air duct are certain,the distance between the air outlet of the air duct and the heading face is 10m~13m,which is the optimal distance for discharging blasting smoke.③When the length of blind roadway is greater than 600m,in order to ensure the work safety of workers,the safe ventilation time should be increased by 10min based on the ventilation time determined by the calculation formula of blasting smoke and air volume.

关 键 词：独头巷道 炮烟 CO浓度 CFD 数值模拟 

分 类 号：TD752[矿业工程—矿井通风与安全]