焦家寨煤矿通风系统阻力测定与分析

朱旭东,鲁忠良

Measurement and Analysis of Resistance in Ventilation System of Jiaojiazhai Coal Mine

Xudong ZHU,Zhongliang LU

表6 各采区通风系统的等积孔

Table 6 Isometric hole of the mining area ventilation system(m 2 )

采区名称 等积孔 213采区 2.05 221采区 2.20 521采区 1.72