玉华矿矿井通风系统的综合评定

Comprehensive Evaluation on the Ventilation System in Yuhua Coal Mine

通过计算玉华矿矿井风量、风压及等积孔,对该矿井通风系统进行了综合评定。矿井移交生产及达到设计生产能力时,矿井总进风量为135m3/s;通风容易时期风压为1650.54Pa,通风困难时期风压为2917.09Pa;矿井通风容易时期和困难时期等积孔分别为3.95m2和2.97m2,属通风小阻力矿井。

Through the calculation of Yuhua Coal Mine＇s air volume,wind pressure and equivalent orifice,this paper makes the comprehensive evaluation on the mine ventilation system：when the mine was passed onto the production,the total mine air volume was 135 m3/s;the wind pressure was 1 650.54 Pa in the easy ventilation period,and was 2 917.09 Pa in the difficult ventilation period;and the equivalent orifice in the easy ventilation period and difficult ventilation period was 3.95 m2 and 2.97 m2 respectively,belonging to small residence ventilation mine.