pressure fan

pressure fan

[′presh·ər ‚fan]
(mining engineering)
A fan that forces fresh air into a mine as distinguished from one that exhausts air from the mine.
References in periodicals archive ?
Firefighters wearing breathing apparatus helped tackled the blaze and a high pressure fan was used to disperse smoke.
5) Air blower: Discharge machine of middle pressure between pressure fan and compressor.
Crew members wearing full protective equipment ventilated the premises using a Positive Pressure Fan and looked for signs of contamination but couldn't find any.
This weight reduction, combined with a slimmer profile and natural convection/radiation cooling that dissipates up to 22 W at +55 degrees C in stagnant (non-flowing) air, or at up to 71 degrees C with an optional low pressure fan or baseplate, makes the rugged control unit ideal for a variety of military, aerospace and commercial environments.
Kongskilde has developed the Multiair high pressure fan, which is a high efficiency centrifugal blower unit that is housed in a standard modular acoustic cabinet providing excellent noise properties and also full weather protection for most outdoor installations.
Firefighters extinguished the blaze and a pressure fan was used to ventilate the store room, which measures 50ft by 30ft.
A small positive pressure fan was installed and ducted to the tie-in point in the dust collector ductwork.
Two firefighters using breathing apparatus and a high pressure fan tackled the blaze, which was limited to the bedroom.
We isolated the supply and had to use a positive pressure fan to ventilate the property.
There was very little damage to the post office and we used our positive pressure fan to ventilate the building.
We used two hose reels and four fire-fighters wearing breathing apparatus to check the property and a positive pressure fan.
Two breathing apparatus, a hose reel and positive pressure fan were used to extinguish the blaze.