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Ventilating The Face Area
Coal Mine Ventilation Ventilating The Face Area
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Purpose of Ventilation
Dilute, render harmless and carry off accumulations of dangerous gasses and dust from the mines. Supply fresh or uncontaminated air to persons working in the mine.
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The Ventilation Current
The Body of Air which is moved through a mine. Intake and Return
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Ventilating Pressure Air, like any fluid body, will always move from a point of High Pressure to a point of Low Pressure.
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Diagram of Main Fan at a Shaft
Automatic Doors Explosion Door or Weak Wall Fan Impeller 15' Overburden Shaft Mine Entry
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DIRECTION OF AIRFLOW INTAKE AIR
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DIRECTION OF AIRFLOW RETURN AIR
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PERMANENT STOPPING
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TEMPORARY STOPPING
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CHECK CURTAIN
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LINE CURTAIN
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OVERCAST Over Return Air Under Intake Air
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REGULATOR
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C C C R R
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Longwall Ventilation
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R R R c c c R R R R R R R
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Multi-Section Ventilation
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c c c R R R R c R c c c c c
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END
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