Research and Application of Pneumatic Air Door of Large Modern Mines

Modern mine development is very rapid, and the development of mine ventilation facilities is also indispensable. In order to make the modern mine ventilation facilities of driving air door meet the development requirements of modern large mines, the paper introduces the applications of the driving air door from initial wood air door, bamboo plywood air door to balance type automatic air door, then to the pneumatic air door, finally to the high negative pressure pneumatic dual cylinder driving air door. High negative pressure pneumatic dual cylinder driving air door has many advantages; it is very suitable for the production needs of modern large-scale mines. Bulianta Coal Mine has been exploring the open mode of automatic air door, which greatly facilitates and guarantees the safe production of mines.