In underground mining, the airflow generated by the main fan is circulated along a designated route through the mine galleries. Air doors serve the following purposes:
- Direct fresh air to production areas.
- Ensure that contaminated or gas-laden air follows the return airway.
- Reduce ventilation leakage.
- Help maintain pressure differentials.
- Reduce energy consumption.
Areas of Use
- Main haulage drifts/galleries
- Connections between different sections
- Entrances to production panels
- Escape routes
- Intersections of intake and return airways
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