并巷降阻工程在矿井通风系统改造中的应用

Application of Roadway-combination Resistance Reduction in Mine Ventilation System

为保证矿井通风系统稳定、牢靠,针对余吾煤业回风大巷部分巷道年久失修、受压变形造成通风阻力增大问题,对三种不同降阻方案进行分析比对,采取并巷降阻方案调整现有通风系统,经过系统阻力模拟分析与改造后实测,有效风量增加约795 m^(3)/min,通风阻力下降约300 Pa,矿井通风系统运行稳定。

In view of the ventilation resistance increase caused by the disrepair and compression deformation of some tunnels in the main ventilation roadway of Yuwu Coal Industry Co.,Ltd.,the author proposes the roadway-combination resistance reduction scheme to adjust the existing ventilation system through by comparative analysis of three dfferent resistance reduction schemes,whose simulation analysis and transformation testing show that the effective air volume has increased by about 795 m^(3)/min and the ventilation resistance has decreased by about 300Pa,ensuring the stability and reliability of the mine ventilation system.