Mining Ventilation System
Your Professional Mining Ventilation System Supplier
Our goal is to become your true partner in the field of dust suppression system main units and accessories China. Established in 2013, SHAN DONG RONGLI POWER MECHANICAL AND ELECTRICAL TECHNOLOGY CO., LTD specializes in manufacturing mining electromechanical products. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
Why Choose Us
Production Equipment
Our company possesses advanced production equipment, such as equipment for manufacturing mine winches, mine rail vehicles, mine valves (manufacturing and welding), mine electrical control devices, and mine water spray dust suppression systems.
Our Services
We offer technical analysis, quotation, contract signing, production, testing, packaging, delivery, and acceptance. We confirm issues, location, arrival time, and required tools by phone in advance. We provide on-site installation or repair until the problem is resolved and the customer accepts the equipment.
Our Certifications
All our equipment holds the necessary mining safety certificates, explosion-proof certificates, and CCC certification.
Fast Shipping
We have ample stock for fast shipping. A variety of models are available for you to choose from.
Advantages of Mining Ventilation System
Energy saving and consumption reducing, with less air leakage loss:
The "air curtain barrier" formed by the air curtain replaces the mechanical seal of traditional air doors, and personnel do not need to fully open the double-layer door leaves when passing through, reducing air leakage loss by more than 80%.
Easy maintenance and adaptability to underground environment:
The air curtain motor is explosion-proof, designed to be dust-proof and waterproof, with a service life of ≥ 5 years; Modular design of control box, which can be restored by replacing the module in case of failure.
Stable wind isolation effect, suitable for complex working conditions:
Air curtain wind speed ≥ 15m/s, effective air curtain thickness 100-150mm, even in high wind pressure environments of 800Pa, can still maintain good wind isolation effect; The double-layer door leaf design further enhances the air isolation capability, with a total air leakage of ≤ 0.2m ³/(min · m) after closure, far lower than the traditional air door standard.
Automatic control, high traffic efficiency:
Equipped with infrared radiation sensors (detection distance of 0-5m), automatic recognition of traffic targets, automatic opening of outer door panels, continuous operation of air curtains, no need to wait for the door panels to completely close for personnel to pass, increasing traffic efficiency by more than 70%.
Specification of Mining Ventilation System
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Product name |
Mining ventilation system |
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Power Supply |
400V / 3 Phase / 50Hz |
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Adjustable |
Door Interlock Logic |
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Origin |
China |
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Lightning Protection |
Support |
The air door electric control main unit is an upgraded version of the mining non pressure air door, with the core improvement being the use of multiple sets of symmetrical balance linkage mechanisms. It mainly consists of steel door frames, double leaf linkage door leaves, balance weight components, double-sided sealing rubber strips, and manual emergency devices. It is suitable for underground high wind pressure (0-800pa) and large-sized tunnels (width 2.5-3.0m x height 2.0-2.4m) scenarios, such as main transportation tunnels, connecting tunnels, and underground parking lots.
The core of its design is to fully convert the high wind pressure in the tunnel into internal force through the coordinated action of balanced weight and multi link. Even in an 800pa wind pressure environment, the opening force can still be controlled within ≤ 180n, solving the pain point of traditional non pressure dampers that require effort to open in high wind pressure tunnels. The equipment has no electrical components, a pure mechanical structure, and is fully adapted to the environment with methane and coal dust explosion risks underground in coal mines. It does not require explosion-proof maintenance for long-term use.
Application of Mining Ventilation System
Mine balanced pressure doors are crucial for underground safety and ventilation, controlling airflow, isolating sections, and protecting workers from blasts/pressure swings by using a unique design where two leaves move in opposite directions, canceling out high air pressure to allow easy, reliable opening for both personnel and machinery, ensuring air reaches all areas and contaminants stay contained.
Door leaves: Two hinged sections balanced to open/close with air pressure, often with a man door & pressure relief panel.
Balance arm/hinge tube assembly: A central tube with arms that pivots, balancing forces and using internal torsion bars/springs for closing.
Frame: Heavy-duty steel/bronze, often with concealed hardware.
Actuation: Hydraulic or pneumatic cylinders/motors for opening/closing.
Control system: Plc (programmable logic controller) for automated logic.
Pivots & bearings
Top and bottom pivots with bearings (like needle/thrust) for smooth, controlled elliptical movement.
Sensors
Proximity sensors, pressure sensors (static/differential) for feedback.
Control panel
Field controls for manual/remote operation.
Packing and Shipping of Mining Ventilation System
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Packing |
Paper Box |
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Shipping |
Sea freight as standard |
FAQ