Mining explosive -proof and intrinsic safety throttle control device

The utility model provides a mining explosive -proof and intrinsic safety throttle control device sets up the sensor at an air door and no. Two air door both sides respectively for the distance whether detection has vehicle or staff and air door is within default distance, if have vehicle or staff to be close to the air door, then the sensor can detect immediately, and then the signal that sends the corotation of control ventilation door motor after the time of predetermineeing after opening the air door, estimates that vehicle or staff pass the air door safely, then send the direction changing control signal of control ventilation door motor in order to close the air door in order to open the air door. Through above technical scheme, can carry out automatic control to twice air door in the ore ducts, released the human cost. And, through the opening or closing of sensor and PLC control module control ventilation door, have higher precision, can make the switch of an air door and no. Two air doors carry out g