The Mine Flameproof press-in counter-rotating fan is a flameproof, counter-rotating axial fan designed for local and auxiliary ventilation in underground coal mines and other suitable underground mining applications.
The FBD series uses a two-stage counter-rotating impeller configuration. The first impeller adds energy to the airflow, while the second impeller rotates in the opposite direction to further increase the pressure capability of the fan.
This configuration makes the FBD fan suitable for mine heading ventilation, underground roadways, local ventilation stations, and ventilation duct systems, particularly where relatively high system resistance and long duct runs are involved.
EMS can configure the fan according to airflow, pressure, duct diameter, duct length, motor requirements, electrical specifications, and applicable flameproof requirements.
Mine Flameproof press-in counter-rotating fan
FBD Flameproof Forcing Fan
FBD Explosion-Proof Auxiliary Mine Fan
FBD Auxiliary Mine Ventilation Fan
Flameproof Local Mine Ventilation Fan
Explosion-Proof Local Ventilation Fan
Mining Auxiliary Ventilation Fan
Coal Mine Auxiliary Ventilation Fan
Twin-Impeller Auxiliary Mine Fan
Counter-Rotating Mine Ventilation Fan
Mine Flameproof press-in counter-rotating fan
This title combines the specific FBD model family with commonly understood mining ventilation terminology.
The FBD fan can be used for:
Coal Mine Heading Ventilation
Underground Roadways
Mine Tunnels
Development Headings
Local Ventilation Stations
Underground Mining Areas
Auxiliary Ventilation Systems
Long-Distance Duct Ventilation
Suitable Underground Metal Mining Applications
Selected Underground Engineering Projects
The fan can be equipped with a suitable flameproof motor and electrical configuration for specified hazardous underground mining environments.
The two impellers rotate in opposite directions, providing increased pressure capability within a compact axial-flow configuration.
The FBD configuration is suitable for forced-air delivery through flexible ventilation ducts where system resistance and duct length need to be considered.
Fan performance can be configured according to the required airflow, pressure, duct dimensions, and working-face conditions.
The axial configuration facilitates transportation and installation in underground working environments.
Industrial-grade motor, bearing, impeller, and casing configurations can be selected for continuous mining operations.
| Parameter | Typical Range |
|---|---|
| Fan Type | Flameproof Counter-Rotating Axial Fan |
| Application | Auxiliary Mine Ventilation |
| Airflow | 200–1,500 m³/min |
| Pressure | 1,000–8,000 Pa |
| Fan Diameter | 300–1,200 mm |
| Motor Power | 2 × 5.5–2 × 110 kW |
| Fan Speed | 1,450–2,900 rpm |
| Impeller | Two-Stage Counter-Rotating Impellers |
| Motor | Flameproof Motor |
| Drive | Direct Drive |
| Casing | Steel / Customized |
| Installation | Horizontal |
| Operation | Continuous Duty |
| Air Conveying | Flexible Duct / Ventilation Duct |
The above figures are typical engineering reference ranges for FBD-type mine auxiliary ventilation fans. They are not fixed specifications for every FBD model. Actual airflow, pressure, motor power, fan diameter, and flameproof certification must be confirmed according to the specific model and project requirements.
The FBD fan uses a counter-rotating axial-flow configuration.
Air enters the first impeller and receives an initial pressure increase. It then passes through the second impeller, which rotates in the opposite direction and adds further energy to the airflow.
A typical ventilation arrangement is:
Fresh Air → FBD Fan → Flexible Ventilation Duct → Heading Face / Working Area
This configuration is particularly suitable for local underground ventilation and ducted forced-air systems.
Mine Flameproof press-in counter-rotating fans are typically installed at:
Mine Heading Faces
Underground Roadways
Coal Mine Tunnels
Development Headings
Local Ventilation Stations
Underground Mining Areas
Auxiliary Ventilation Systems
Long-Distance Duct Ventilation Systems
The fan is normally connected to a flexible ventilation duct or suitable mine ventilation ducting to deliver fresh air to remote working areas.
For proper selection, customers should provide:
Required Airflow
Required Pressure
Ventilation Duct Diameter
Duct Length
Duct Leakage Condition
Working-Face Distance
Gas and Dust Conditions
Required Explosion Protection
Motor Voltage
Power Supply Frequency
Installation Environment
Continuous Operating Requirements
EMS provides:
Main Mine Fan Selection
Airflow and Pressure Calculation Support
Fan Technical Data
Performance Curves
General Arrangement Drawings
Motor Configuration
Flameproof Configuration
Customized Fan Engineering
Export Packaging
Technical Documentation
Overseas Project Support