【摘要】 针对开采多年老矿山的具体情况,在通风系统改造中灵活应用了回风侧为主的多级机站通风系统。同时,将上下行间隔式阶段通风网络和棋盘式阶段通风网络有机结合,建立起了二者混合式的阶段通风网络,较好地解决了用风段污风串联、漏风等问题。更多还原

【Abstract】 The multi-stages ventilation system model in exhaust section was used according to the actual condition of the old mines.Moreover,the complex stages ventilation net was rationally set up by combining the chess-board type with the up-down alternate type.The problems were solved such as contaminated air series,air leakage and so on.更多还原