Powering Ventilation, Driving Progress — Achieve Your Mining Goals with MiningFan.
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An auxiliary forcing fan is a localized supply unit used to ventilate development headings, working faces, and equipment bays in underground mines. Operating in a press-in configuration, it forces intake air along ducts to the point of use, countering system losses so the specified quantity reaches the workplace. This ensures effective dilution of methane, blast fumes, and diesel particulates while supporting temperature control and visibility.
Auxiliary fans are typically compact axial machines mounted on frames or hangers, with options for silencers and flexible or spiral-wound ducting. Explosion-proof designs are selected in coal and other gassy mines. Control through variable-frequency drives allows incremental increases as drivages advance and duct length expands. Proper placement—upstream of duct runs with smooth inlets and sealed joints—reduces recirculation risk and preserves pressure head.
Selection is based on required airflow at the face and the calculated total pressure of the duct system. Efficiency, noise limits near occupied areas, and available power are key criteria. Commissioning measurements of quantity and pressure validate performance and inform operational setpoints.
