[TheForge] positive pressure room

[Kathy]

This brings up an interesting subject Jay,
As all old timers know, metal fumes, grinding particulates, and spray painting
inhalants are the main causes of ill health among metal workers. It seems to me
that a booth configured to deal with all of them would be a boon for us.
Naturally, equipment manufacturers have no interest in reducing their potential
markets by producing universal tooling, so such an item can only be home built.
Any thoughts on the matter?
Mikey 

-----Original Message-----
From: theforge-bounces at mailman.qth.net [mailto:theforge-bounces at mailman.qth.net]
On Behalf Of Jay Hayes
Sent: Thursday, March 08, 2007 5:14 PM
To: Sponsored by ABANA
Subject: Re: [TheForge] positive pressure room

Mikey,
That is correct. The heavier the particulate is the higher the velocity the air
needs to be to move it. The paint booth I turned into a grinding room is a large
twelve foot wide walk in type booth with a 36 inch explosion proof fan. We
reconfigured the filter bank with baffles to increase the down draft velocity.
It's sweet and helps keep most of the grit and dirt out of the main part of the
shop. Our old sanding / grinding room was a Binks 22 x 30 booth with a 16 foot
down draft bench on one wall and two six foot down draft benches on another
wall. It was great for small stuff but was only fair for large items like
railings or spiral stairs. The new setup is more versatile and better utilizes
space.

Jay

Kathy wrote:
> Hi Jay,
> I always thought the rule of thumb was that to move fumes you want 
> high volume fans, but to move particulates (like grinder dust) you need high
speed fans.
> Since paint involves both, what kind of machinery do you employ? BTW, 
> thanks again for your contributions about handling copper tubing 
> fittings in Gas Burners.
> Mikey_
>
>   

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