What Are the Operating Environment Requirements for Mining Flameproof Forced Type Contra-Rotating Axial Flow Local Fans?

The performance and safety of mining flameproof forced type contra-rotating axial flow local fans depend heavily on their operating environment. Adhering to specific requirements ensures reliable function and safety, particularly in hazardous mining conditions.

These fans are designed to operate within an environmental air temperature range of -15°C to +40°C. Additionally, the relative humidity should not exceed 90% when the ambient temperature is 25°C. Maintaining these conditions prevents the fans from facing operational issues or deterioration due to moisture.

For installations at altitudes up to 1,000 meters, standard power and temperature parameters apply. However, if the fans are used at altitudes exceeding 1,000 meters, adjustments to power and temperature rise must be made according to the GB 755 standards to ensure performance consistency.

The fans should be placed in environments free from intense vibrations and corrosive gases. This helps maintain structural integrity and prevents potential damage or malfunctions that could lead to safety risks.

These fans are specifically designed to be installed in intake airways of coal mines where explosive and hazardous methane gas may be present. This flameproof design reduces the risk of igniting gases, enhancing the safety of mining operations.

To ensure proper function, the fan operates at a rated power frequency of 50Hz and a rated voltage of 415V. The working mode for these fans is S1, or continuous operation, making them suitable for demanding and prolonged use in mining environments.

By adhering to these environmental and operational conditions, mining flameproof forced type contra-rotating axial flow local fans can perform reliably, ensuring worker safety and effective ventilation in hazardous underground mining sites.