风门是煤矿井下通风系统的重要装备,它直接关系到井下生命财产的安全。锦州蛤蟆山矿多年来一直采用撞杆式风门,维修量大,车灾人祸较多,不符合国产人车下井的要求,常因风门损坏而影响通风,影响生产。本文介绍的光电风门自动控制装置可 Air damper is an important equipment of ventilation system in coal mine, which is directly related to the safety of underground life and property. For many years, Jinzhou toad mountain mine has been using the rod-type throttle, maintenance of large, car disaster more, does not meet the requirements of domestic car down, often due to damage to the ventilation door ventilation, affecting production. This article describes the photoelectric shutter automatic control device can be