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dust venting hood over clay mixer

updated tue 31 dec 96

 

Bob Chance on tue 17 dec 96

Everyone,

I am looking for information concerning venting dust from a partially
enclosed claymixing area. It has become a necessity to find a way to
move lots of air and dust out of this mixing space and I am specifically
thinking about a covering hood or vent with a strong motorized fan for
the the area directly over and around the mixer. I will appreciate any
information on size, configuration, manufactures of vents, hoods or fans
and/or general comments about the pros and cons of whatever methods are
used. I will need to exit through a concrete block wall--(envision
angry college maintenance people here)--to the outside. My Mixer is a
bluebird unit that mixes 100 lbs (dry) at a whack. I look forward to
any responses in this matter.
Thanks
Bob Chance
Chance_Bob@Furman.EDU
Web Page at http://ns9000.furman.edu/~chance/chance.html

Vince Pitelka on wed 18 dec 96

>I am looking for information concerning venting dust from a partially
>enclosed claymixing area.

Bob -
A hood only accommodates fumes which rise by themselves, as from a hot kiln.
An effective dust-extraction system for a claymixer involves a very
high-volume fan, and a long, thin suction-slot (like the floor nozzle for an
old vacuum cleaner) mounted slightly above and behind the clay mixer. The
slot should be 1/2" to 3/4" high, and slightly longer than the length of the
mixer. If the fan is strong enough, it will pull a curtain of air across
the mixer, and extract all the dust from the immediate area. It is
important to realize, however, that any extractor fan in a clay-mixing area
is never a substitute for wearing a respirator. Everyone in the clay-mixing
area should wear a respirator whenever dry materials are being handled.
- Vince

Vince Pitelka - vpitelka@Dekalb.Net
Phone - home 615/597-5376, work 615/597-6801
Appalachian Center for Crafts, Smithville TN 37166