多进风井井底风流紊乱原因及预防措施研究  

Research on the reasons and preventive measures for the disturbanceof bottom air flow in multiple air inlet shafts

作　　者：王振国 田素超 包迪文 李博[2] WANG Zhenguo;TIAN Suchao;BAO Diwen;LI Bo(Xukuang Group Tianshan Mining Com pany,Kuche 842008,China;China Universit y of Mining and Technology,Xuzhou 221008,China)

机构地区：[1]徐矿集团天山矿业公司,新疆库车842008 [2]中国矿业大学,江苏徐州221008

出　　处：《建井技术》2023年第6期31-35,共5页Mine Construction Technology

摘　　要：为了解决俄霍布拉克煤矿多进风井井底风流汇合点附近巷道风流方向不稳、风量较小的问题,利用风压平衡定律和通风能量方程对其通风系统进行分析,推导出了风流不稳巷道风流方向确定判别式和风量计算式;利用现场实测数据对计算式进行验证,结果表明计算式结果与现场实际吻合,正确可用;结合计算式和现场实际情况,提出防治措施,确保了矿井通风系统稳定性,提高了其抗灾性。In order to solve the problem of unstable airflow direction and small air volume in the road-way near the confluence point of multiple intake shafts in the Okhobrak coal mine,the ventilation system was analyzed using the law of air pressure balance and the ventilation energy equation,and thediscriminant formula for determining the airflow direction of the unstable airflow roadway and the airvolume calculation formula were derived;The calculation formula was validated using onsitemeasured data,and the results showed that the calculation formula results were consistent with theactual situation on site and were correct and usable;Based on the calculation formula and the actualsituation on site,prevention and control measures were proposed to ensure the stability of the mineventilation system and improve its disaster resistance.

关 键 词：多进风井 风流紊乱 计算式 角联分支 预防措施 

分 类 号：TD724[矿业工程—矿井通风与安全]