[TheForge] beards and masks

[Jerry Frost]

Aw shucks guys. <shuffle shuffle>

What I'm building isn't a dust and fume cleaning 
system, all it does is exhaust it out of the building. 
Still, $600 isn't too bad for a system that'll clean 
dust, fumes and smoke out of the air. I wonder what 
filters cost and how long they last.

The way I look at it the best way to not have a shop 
full of smoke is to get rid of it as soon after it's 
made as possible. Right under the table seems the best 
to me. Sure an exhaust hose laid next to the work gets 
it too but you're always tripping over the hose, 
repositioning it, etc.

Another factor is heat. It's been hanging in the -5 
to -12f range for better than a week. If the shop were 
up and running and I filled it with smoke a "normal" 
under the peak exhaust fan would have to change the 
total volume of air out two or three times to get most 
of the smoke. If I can keep the smoke out of the air in 
the first place I can keep all the warm air in the 
shop.

Then there's the lesser factor of where the warm shop 
air/smoke is going before it exits the shop. It's 
sucked down below the floor slab and circulated around 
at least part of the perimeter before hitting the 
blower and exiting. This will help keep the temp of the 
slab up in the winter and warm feet are a good thing.

Anyway, if all you do is exhaust it out of the shop you 
should be able to build what I have in mind for a 
couple hundred bucks.

Frosty
-------------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.




From: <PlumDon at aol.com>


>A most excellent response, Frosty, and much 
>appreciated.
>
> I  requested info re downdraft welding tables from 
> one of the on line
> suppliers and  the sales rep called me. (I assume he 
> is probably a marketing rep)
> After finding  out I was a small, one person shop he 
> suggested what I had been
> looking at would  be over $3000.
> _http://www.mist-dust-collection.com/fume-extraction/high-temperature-grinding.htm_
> (http://www.mist-dust-collection.com/fume-extraction/high-temperature-grinding.htm) 
> .  I confirmed that was
> inappropriate. He was kind enought to call and then 
> e-mailed the following response.
>
> ------------------------------------------------------------------------------
> -----------------------------------------------------------------------------
>
> "This is the least expensive system you can get into 
> that will still be
> effective for your needs. Designed for intermittent 
> use it is designed to trap
> smoke and fumes and has a replaceable HEPA filter 
> which is the easiest way to
> trap smoke indoors. This unit goes for $595 and comes 
> work ready. As I
> explained- I would set up a metal table if you dont 
> already have one perhaps 1 x  3
> grating or perforated deck with a water pan on the 
> underside-This will
> extinguish any sparks and the collector will take 
> away the smoke.
> _http://www.nikro.com/new/pdf4.htm_ 
> (http://www.nikro.com/new/pdf4.htm)  "
>
> If  you need anything more please let me know. "
>
> Paul  Disanza
> Industrial Air Solutions, Inc.
> North East Sales Office
> (P)  973-981-4097
> (F) 973 702 2213
>
> ------------------------------------------------------------------------------
> ------------------------------------------------------------------------------
>
> Right nice of him to respond. Anyone used any of 
> these devices?
>
> Don Plummer
>
>