摘要
针对白庄煤矿部分巷道变形较大导致有效回风断面减小,通风阻力增大的问题,采用现场实测和仿真模拟的方法,对矿井通风系统现状可靠性进行了研究,发现矿井南、北风井系统测定路线通风总阻力都符合煤矿通风技术条件要求,通风系统的自然风压为正值,阻力分布和风量分配合理,但通风系统现状仍存在以下缺陷:矿井北风井1号风机机械损耗大,效率仅43.77%;矿井角联分支较多,部分分支存在风流反向,不利于通风系统管理。
In response to the problem of significant deformation in some tunnels of Baizhuang Coal Mine,which leads to a reduction in the effective return air cross-section and an increase in ventilation resistance.The reliability of the current status of the mine ventilation system was studied using on-site measurement and simulation methods.It was found that the total ventilation resistance of the south and north air shaft systems in the mine meets the requirements of the coal mine ventilation technical conditions.The natural air pressure of the ventilation system is positive,and the resistance distribution and air volume distribution are reasonable.However,the current situation of the ventilation system still has the following defects:the mechanical loss of fan 1 in the north air shaft of the mine is large,with an efficiency of only 43.77%;There are many corner connected branches in the mine,and some branches have reverse airflow,which is not conducive to ventilation system management.
作者
李桂平
张志学
孙守辉
王光东
陆春辉
LI Guiping;ZHANG Zhixue;SUN Shouhui;WANG Yudong;LU Chunhui(Feicheng Baizhuang Coal Mine Co.,Ltd.,Tai'an,271000,China;Pingan Coal Mine Gas Control National Engineering Research Center Co.,Ltd.,Huainan 232001,China)
出处
《煤矿现代化》
2024年第3期80-82,89,共4页
Coal Mine Modernization
关键词
通风阻力
通风系统
仿真
风压
风量
ventilation resistance
ventilation system
simulation
wind pressure
air volume
