Pneumatic Mine Ventilation Door
Mine Scenario, Precisely Adapted
Pneumatic mine ventilation door: To address the explosion risks of methane and coal dust in underground coal mines, it enhances the explosion-proof chamber and sealing design; it is adapted to the high-humidity, dusty, and impact-prone working conditions in metal mines, upgrading the anti-corrosion and anti-impact structures. It can operate stably within the temperature range of -20℃ to 40℃, with a humidity of no more than 95%, and an altitude of no more than 2000m. It is installed in locations such as intake and return airways, mining area connection alleys, and blasting operation channels, achieving directional control of air flow and effective isolation of dangerous areas.
Pneumatic core, structural upgrade
The door panel is made of 11mm high-strength alloy steel, with strong anti-deformation ability; the door frame is a welded steel structure with internal reinforcement ribs; the sealing system uses wear-resistant rubber strips + pneumatic sealing pads, with low air leakage rate; the core drive adopts explosion-proof pneumatic actuators for mining use, combined with a bidirectional reversing valve, with quick opening/closing response; the automatic model is equipped with an intrinsically safe control unit, while the manual model has an emergency pneumatic wrench interface, ensuring both explosion-proof and durable characteristics for the core components.
Safe and compliant, with outstanding performance.
Complying strictly with a series of explosion-proof standards such as GB 3836.1-2010 and the MT/T209-1990 mining specifications, the explosion-proof mark is Exd［ib］I Mb, with a fire resistance limit of 2.5 hours.
The pressure resistance level is 0.38 MPa, and the anti-shock design can withstand a peak impact of 550 m/s²; the emergency opening function supports manual quick opening and closing when power and gas are cut off, with real-time monitoring by the anti-collision sensor, and automatically stops and alarms when encountering people or vehicles, providing comprehensive safety guarantees.
FAQ
Q: Does pneumatic drive rely on a stable air source?
A: Pneumatic mine ventilation door is compatible with mine-standard air sources (0.4-0.8 MPa), equipped with an air storage tank. In case of short-term interruption of air supply, it can be emergency opened and closed 1-2 times to ensure continuous operation.
Q: Can it be used in a high dust environment for a long time?
A: The actuator is equipped with a dust-proof cover and the sealing system has a self-cleaning function. It can operate stably in a high dust environment and can run normally after regular cleaning.
why choose us
A safety officer from a coal mine: "The pneumatic drive has a fast response, smooth opening and closing, excellent sealing effect, effectively reducing air leakage in the tunnels, simple maintenance, and has no faults for over a year of use."
A equipment supervisor from a metal mine: "It is suitable for the high-humidity environment in underground mines, has excellent anti-corrosion performance, precisely customized dimensions to fit the tunnels, and is easy to install, significantly enhancing operational safety."
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