JK / DJK Series Mine Auxiliary Ventilation Fan

The Mine Auxiliary Ventilation Fan is designed for local and auxiliary ventilation in underground mines, including coal mines, metal mines and underground development projects.

The fan is typically installed near a mine heading or working area and connected to a flexible ventilation duct to deliver fresh air over long distances.

With an axial-flow configuration and compact construction, the JK / DJK series is suitable for mine heading ventilation, underground tunnel ventilation, local working-area ventilation and auxiliary mine ventilation systems.

Depending on the actual mining environment, the fan can be configured with industrial, mining-duty or flameproof electrical equipment.

The JK / DJK fan operates as an auxiliary forcing ventilation fan.

Typical ventilation arrangement:

Fresh Air → JK / DJK Fan → Flexible Ventilation Duct → Mine Heading / Working Face

The fan pressurizes fresh air and delivers it through the ventilation duct to the underground working area.

For long-distance ventilation, fan selection should consider airflow, pressure loss, duct diameter, duct length and duct leakage.

The JK / DJK Series is suitable for:

• Underground Mine Heading Ventilation
• Mine Development Tunnels
• Coal Mine Roadways
• Metal Mine Tunnels
• Mine Heading Faces
• Underground Working Areas
• Local Mine Ventilation Stations
• Long-Distance Duct Ventilation
• Underground Construction Tunnels
• Mine Auxiliary Ventilation Systems
• Temporary Underground Ventilation
• Tunnel Excavation Areas

The above values are typical engineering reference ranges. Final airflow, pressure and equipment configuration should be selected according to the actual mine ventilation system, duct diameter, duct length and operating conditions.

Local and Auxiliary Ventilation

Designed specifically for localized underground ventilation, including mine headings, development tunnels and working faces.

Axial-Flow Design

The axial-flow impeller provides an efficient airflow path and a compact fan arrangement suitable for underground applications.

Flexible Duct Connection

The fan can be integrated with flexible ventilation ducts for long-distance air delivery.

Compact Construction

The compact configuration simplifies installation where underground space is limited.

Continuous-Duty Design

The fan can be engineered for continuous operation with appropriately selected motors, impellers, bearings and casing components.

Multiple Motor Configurations

Industrial, mining-duty or flameproof motor configurations can be considered according to the application environment and project requirements.

Customized Engineering

Airflow, pressure, fan diameter, motor power, voltage, frequency, materials and electrical configuration can be customized.

For an overseas website, JK / DJK fans can be placed under:

Mining Axial Fans → Mine Auxiliary Ventilation Fans

Recommended product pages include:

Where the specific configuration has a certified flameproof design, the product can also be marketed as:

JK / DJK Flameproof Mine Auxiliary Ventilation Fan

or

Explosion-Proof Mine Local Ventilation Fan

For proper fan selection, customers should provide:

• Required Airflow
• Required Pressure
• Ventilation Duct Diameter
• Duct Length
• Duct Leakage Conditions
• Heading Distance
• Mine Type
• Gas Conditions
• Dust Conditions
• Motor Voltage
• Frequency
• Explosion Protection Requirements
• Ambient Temperature
• Available Installation Space

The key parameters for auxiliary ventilation selection are generally airflow, pressure, duct diameter and duct length.

JK / DJK fans are normally installed in a fresh-air area and connected to a flexible ventilation duct leading toward the underground working face.

During installation:

• Keep the air inlet unobstructed.
• Securely connect the fan to the ventilation duct.
• Avoid excessive duct bending.
• Minimize unnecessary duct leakage.
• Verify the impeller rotation direction.
• Check motor and electrical connections.
• Ensure reliable grounding.
• Check bearing lubrication.
• Prevent foreign objects from entering the impeller.

During operation, airflow, pressure, motor current, bearing temperature, vibration and noise should be monitored.

For coal mines or other environments containing potentially combustible gases or dust, the required flameproof equipment, electrical configuration and certification should be determined according to the actual hazardous area and applicable local mining regulations.

EMS provides:

• Auxiliary Fan Selection
• Airflow and Pressure Matching
• Fan Performance Data
• Technical Drawings
• Motor Selection
• Flameproof Configuration
• Flexible Duct Matching
• Customized Fan Design
• Export Packaging
• Technical Documentation
• Overseas Project Support

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