• Explosion proof
• Compact
• Built-in muffler
• unique tracking order for each fan. 
• three layer anti-corrossion painting. 
• largest diameter 5meters! 
• Each hub is annealed to remove internal stress.Durable enough. 
• Orthogonal 3D Twisted Blade Technology of Bend and Sweep Combination,Simulated Dune Principle. 
• In line with international standards, 1000: 1.5~2.5, to ensure that the impeller works more safely and efficiently. 

Product-related News:

DECENT MACHINERY‘12 Custom Mining Ventilation Fans Pass Full Bv Third-Party Full-Condition Tests For Central Asian Copper Mine Project.



DECENT MACHINERY Welcomes East African Mining Partners for In-depth Mine Fan Cooperation



DECENT MACHINERY Welcomes Top Southeast Asian Copper Mining Enterprise for Strategic Cooperation Talks,New Partnership Secured



DECENT MACHINERY Forges Long-Term Strategic Partnership with Leading Southeast Asian Mining Conglomerate

The Smart Local Ventilation Fan is a high-tech ventilation solution designed for underground mining, tunneling, and industrial air circulation. This energy-efficient underground fan adapts in real time to gas concentration fluctuations and ventilation demands, providing optimized airflow distribution and enhanced workplace safety.
 

Key Features of the Smart Local Ventilation Fan

1. Real-time display of air volume, pressure, and motor power on a user-friendly LCD interface.
2. Energy-efficient operation, adjusting output airflow according to ventilation requirements.
3. Fully automated system, using PLC-controlled variable frequency drive (VFD) technology for precise airflow adjustments.
4. Flexible inverter installation options, supporting both integrated and independent configurations.
5. Intuitive LCD touch display, offering real-time operational data and gas concentration alerts.
6. Advanced safety features, including overcurrent, overload, and phase-loss protection.
7. Enhanced cooling mechanism, utilizing high-speed airflow to dissipate heat efficiently.

How It Works

The Smart Local Ventilation Fan automatically modulates motor speed and air volume based on gas levels and workplace ventilation requirements, ensuring effective airflow management.
 

• ① Automated Gas Exhaust Function If gas levels exceed safe thresholds due to power failure or ventilation stoppage, the VFD system dynamically adjusts fan speed to maintain stable gas concentration at the T3 mixing point. This prevents excessive gas release and ensures controlled air circulation, reducing dust exposure and improving air quality.
• ② Energy-Saving Adaptive Operation The system maintains optimal airflow using real-time power and pressure analysis. Fan speed dynamically adjusts to prevent unnecessary energy consumption while maintaining safe ventilation levels.
• ③ Reversible Airflow Direction Control Operators can toggle between forward and reverse airflow via the intuitive LCD touch screen interface.
• ④ Automatic Backup Fan Activation In the event of primary fan failure, the standby ventilation fan seamlessly activates, ensuring continuous airflow circulation.
• ⑤ Wind-Electric and Gas-Electric Interlock System Features integrated safety interlocks, ensuring synchronized operation between ventilation and electrical systems.
• ⑥ Smart Data Logging and Memory Function The system stores historical data from the last 10 gas exhaust cycles, including start time, gas concentration, frequency changes, and shutdown details, for performance monitoring and diagnostics.

Installation and Environmental Conditions

• Operating Temperature: 0°C to +40°C Altitude: ≤1000m (Capacity adjustment required for elevations above 1000m)
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• Humidity: ≤95% Relative Humidity
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• Operating Pressure: 80kPa~106kPa
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• Explosion-proof design for methane and coal dust environments
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• Designed to withstand vibrations, water splashes, and harsh mining conditions
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• Power Supply: 660V/1140V AC
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