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目前国内冶金矿山使用的风门种类很多。仅门扇形式就有七、八种之多。有的一个矿山就采用了三、四种不同形式的风门。这些风门虽然各有特点,但是多年实践证明,有的风门是比较好的,有的风门由于设计不合理或维护管理不当,暴露出不少问题,因而不能坚持使用。个别矿山就是因为风门不过关,漏风量竟达20～30％,例如江西某钨矿由于主运输平巷的自动风门长期使用不好而被迫将合理的压入式通风改为抽出式通风,造成很大的浪费。设计
At present, there are many types of throttle used in domestic metallurgical mines. There are only seven or eight as many door leaves. Some mines use three or four different types of dampers. Although these have their own characteristics, but many years of practice has proved that some throttle is better, and some throttle due to unreasonable design or improper maintenance, exposing a lot of problems, and therefore can not adhere to use. Individual mine is because the throttle is off, air leakage as high as 20% to 30%, for example, a tungsten mine in Jiangxi Province due to long-term use of the automatic transport doorway poor long-term use and forced to be replaced by a reasonable push-type ventilation ventilation, Cause a lot of waste. design