Ventilating The Face Area Coal Mine Ventilation Ventilating The Face Area

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.

The Ventilation Current The Body of Air which is moved through a mine. Intake and Return

Ventilating Pressure Air, like any fluid body, will always move from a point of High Pressure to a point of Low Pressure.

Diagram of Main Fan at a Shaft Automatic Doors Explosion Door or Weak Wall Fan Impeller 15' Overburden Shaft Mine Entry

DIRECTION OF AIRFLOW INTAKE AIR

DIRECTION OF AIRFLOW RETURN AIR

PERMANENT STOPPING

TEMPORARY STOPPING

CHECK CURTAIN

LINE CURTAIN

OVERCAST Over Return Air Under Intake Air

REGULATOR

C C C R R

Longwall Ventilation

R R R c c c                              R                                 R R R R R R

Multi-Section Ventilation

c c c R R R R c R c c c c c

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