Product introduction
Mining electro-hydraulic automatic air door is mainly used in the connecting roadway between the mine underground air inlet and return roadway and the main inlet and return air roadway. It breaks the long-standing structure of the traditional damper, and skillfully transforms the wind pressure acting on the damper into an internal force through the balance structure. The electro-hydraulic automatic air door has the functions of automatic opening and closing, electric control locking, in place detection, sound and light alarm, anti pinch of people and anti vehicle. The air door has the advantages of unique structure, simple use, safe and reliable, small opening force, etc., which is the substitute of traditional damper.
Product features
1) The switch of air door is realized by driving device (such as hydraulic cylinder and reducer). No additional facilities are needed. The driving device is installed on the door body, which does not occupy the use space of the roadway. The installation is simple and the opening and closing is stable. The function of safety, convenience and automaticity is achieved. In particular, the hydraulic drive damper has larger thrust, which can meet the control requirements of large-scale and heavy-duty damper.
2) Under the fully automatic control state, the damper operates automatically without manual opening, which is convenient and practical.
3) PLC control is adopted to realize the whole automatic control of air door, which can effectively reduce labor intensity, enhance safety function and improve work efficiency.
4) The two air doors are locked with each other, only one can be opened at the same time, and the closing priority is to avoid short circuit operation of the ventilation system.
5) In case of power failure, the air door can be opened and closed manually, and the device will reset automatically after power recovery (if the damper is open at this time, the system will close the damper automatically).
6) There are two kinds of sound and light alarm modes, which can send out sound and light alarm signals. There are anti pinch device and anti pinch device to improve the safety of system operation.
7) System control and data communication: the main control system adopts PLC with communication interface.
8) The electric control system has over-current, overload, over-voltage, three-phase imbalance, leakage protection.