排风斜井兼作提升井的风门管理,是一项比较复杂的工作。一九六四年以前,我矿采用的主要是双扇双拉杆风门。但由于矿车冲撞,破坏严重。修理时漏风量大,经常影响生产。以后不得不改在风门处设一专人负责矿车上下时开关风门,但人力开关风门,又出现了新问题。如:矿井负压,着用力大,风门拉不动,只好在扇门上安设活动门窗。利用部分风流短路,以降低负压对风门的压力,但人力拉门,不仅增加人员,在车行频繁时,劳动也很繁重。尤其是一人只能负担 Exhaust inclined shaft also serves as a damper to enhance the well management, is a more complicated work. Before 1964, mine mainly used double-rod double-rod throttle. However, due to collision car, serious damage. Air leakage during repair, often affect the production. Later had to change the door at the door to set a person responsible for the car when the throttle switch, but the human switch throttle, there have been new problems. Such as: mine negative pressure, with great force, the wind pull fixed, had to set up doors and windows in the activities of the doors. The use of some romantic short circuit to reduce the negative pressure on the throttle pressure, but human sliding door, not only to increase staff, frequent in the car when the labor is very heavy. In particular, one can only afford