2026-04-18
The FBD-9.0 mine explosion-proof press-in axial flow fan is a high-efficiency, low-noise local ventilation fan designed for underground mining applications. It features two counter-rotating impellers that rotate in opposite directions, with the motors directly coupled to the impellers in a straight-line configuration. The fan consists of four main components: the collector, stage I main unit, stage II main unit, and diffuser. Both the collector and diffuser are fitted with inner core tubes, and the surfaces of the core tubes are lined with ultra-fine glass wool and perforated panels for sound absorption.
The fan is equipped with two YBF-2 series flameproof three-phase asynchronous motors, featuring an explosion-proof type with marking Exd I. The motors are installed inside the main unit barrel and dissipate heat through the airflow generated by the fan itself. Impeller blades are arc plate blades welded to the hub according to the required angle. The FBD-9.0 series fan has obtained both explosion-proof certification and mining product safety certification.
The FBD-9.0 mine explosion-proof press-in axial flow fan is primarily used as a press-in local ventilator in underground coal mines containing explosive gases such as methane or coal dust. It is suitable for installation in intake airways in conjunction with positive pressure ducts, providing ventilation for mining excavation faces and various chambers. The fan can also be applied to metal mines, chemical mines, tunnel construction ventilation, and other industrial sectors requiring forced ventilation in explosive atmospheres. It is equally suitable for press-in ventilation in coal mine shafts, metal mines, chemical mines, and for long-distance tunnel ventilation applications.
The FBD-9.0 mine explosion-proof axial flow fan can be placed flat on the tunnel floor or suspended on the tunnel wall for use. When placed on the floor, the fan's air intake (collector end) must not be submerged in water or mud. The fan is suitable for use in ambient gas temperatures ranging from -20°C to +40°C, with atmospheric pressure between 86kPa and 106kPa, and relative humidity not exceeding 95% (at 25°C). The altitude should not exceed 1000 meters. The power supply should have a rated frequency of 50Hz, with voltage levels available in 380V, 660V, or 380/660V, 660/1140V dual voltage configurations.
High Efficiency & Low Noise: The fan delivers excellent aerodynamic performance with high efficiency and low noise levels. The use of counter-rotating direct-coupled transmission reduces guide vane devices, increasing fan pressure while minimizing airflow resistance. The housing is equipped with a wrap-around silencing device, keeping the overall operating noise below 85 dB (specific A-weighted sound level ≤25 dB) .
Long-Distance Air Supply: The fan can deliver normal air supply within roadways up to 2000 meters without requiring fan relocation, significantly reducing labor intensity and saving ventilation time.
Flexible Operation: The fan can be used as a complete unit or staged according to different ventilation resistance requirements, reducing ventilation power consumption and saving energy. The two-stage motors can also be driven separately as needed.
Compact & Durable Construction: The fan features a compact structure with small overall dimensions, simple installation, and easy maintenance. The housing and structural components are welded from high-quality steel plates, ensuring safety, reliability, and long service life.
Advanced Blade Design: The blades utilize three-dimensional fluid design with airfoil twisted profiles, providing a large high-efficiency operating range that keeps the fan running within optimal performance parameters.
Superior Silencing Treatment: The collector, stage I main unit, stage II main unit, and diffuser are all lined with ultra-fine glass wool and perforated panels for sound absorption. Additionally, intake tower silencers and inlet/outlet spiral composite silencers are designed to effectively reduce fan noise.
Dual Voltage & Explosion Protection: The fan is equipped with YBF-2 series flameproof three-phase asynchronous motors (Exd I marking), available in voltage levels of 380V, 660V, or 380V/660V, 660/1140V dual voltage configurations, suitable for different mine power systems.
| Parameter | Value/Description |
|---|---|
| Product Series | FBD (Mine explosion-proof press-in counter-rotating axial flow local fan) |
| Voltage Levels | 380V, 660V, or 380/660V, 660/1140V dual voltage configurations |
| Rated Frequency | 50Hz |
| Power Supply | Three-phase asynchronous motor |
| Motor Type | YBF-2 series flameproof three-phase asynchronous motor |
| Explosion-Proof Marking | Exd I |
| Number of Impellers | Two counter-rotating impellers |
| Number of Blades | 10 blades |
| Speed | 2900 r/min |
| Operating Temperature | -20°C to +40°C |
| Atmospheric Pressure | 86kPa ~ 106kPa |
| Relative Humidity | ≤95% (at 25°C) |
| Altitude | ≤1000m |
| Maximum Dust Content | ≤200 mg/m³ |
| Maximum Noise | ≤85 dB(A) (Specific A-weighted sound level ≤25 dB) |
| Maximum Full Pressure Efficiency | ≥80% |
| Housing Material | High-quality steel plate |
| Silencing Material | Ultra-fine glass wool + perforated panels |
| Certifications | Explosion-proof certificate + mining product safety certificate |
