乌东煤矿通风系统优化改造研究

Research on Optimization and Reform of Ventilation System in Wudong Coal Mine

乌东煤矿采用水平分段综采放顶煤采煤方法,总回风立井和+500^+568m水平斜巷风速超限;矿井通风阻力大,进、回风通风线路长;立回风井筒内未设置通达地面的第二安全出口。通过认真研究,决定在南区各新建1个进、回风立井井筒,解决了总回风立井和+500^+568m水平斜巷风速超限的问题,并且南区第二安全出口的设置达到了规定要求。

Wudong Coal Mine adopts horizontal subsection fully mechanized top coal caving mining method,the total return air shaft and+500^+568m horizontal inclined roadway exceed the limit of wind speed;the mine ventilation resistance is large,the line of inlet and return air ventilation is long;the second safe exit to the ground is not set in the vertical return air shaft.Through careful study,it was decided to build a new intake and return air shaft in the southern area,which solved the problem of excessive wind speed in the total return air shaft and+500^+568m horizontal inclined roadway,and the setting of the second safe exit in the southern area met the requirements.