Mine Flameproof press-in counter-rotating fan

Mine Flameproof press-in counter-rotating fan
Product Overview
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.

Recommended Overseas Product Names
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
Recommended H1
Mine Flameproof press-in counter-rotating fan
This title combines the specific FBD model family with commonly understood mining ventilation terminology.

Main Applications
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

Key Features
Flameproof Configuration
The fan can be equipped with a suitable flameproof motor and electrical configuration for specified hazardous underground mining environments.
Counter-Rotating Impellers
The two impellers rotate in opposite directions, providing increased pressure capability within a compact axial-flow configuration.
Suitable for Duct Ventilation
The FBD configuration is suitable for forced-air delivery through flexible ventilation ducts where system resistance and duct length need to be considered.
Efficient Local Ventilation
Fan performance can be configured according to the required airflow, pressure, duct dimensions, and working-face conditions.
Compact Construction
The axial configuration facilitates transportation and installation in underground working environments.
Continuous-Duty Operation
Industrial-grade motor, bearing, impeller, and casing configurations can be selected for continuous mining operations.

Typical Technical Parameters
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.