[TheForge] gas forge design

Mon Apr 21 10:41:02 2003

What's funny is they do run them on waste oil and solvents, and yes its EPA
approved.  Burning waste oil, and solvents has NO restrictions, the EPA
allows it because it terminates an otherwise larger nuisance.  The EPA has
some cradle to grave liabilities on waste oil  if you take it out of the
cranky case and store up 500 gallons then sell it to a recycler and the
recycler truck gets in a wreck, YOU are responsible for the cleanup.  This
is why many companies are switching to waste oil heaters in shops and other
places, because they can terminate the product without it every leaving the
premises therefore lowering their insurance bill and potential liability.
While the EPA doesn't regulate the waste oil burning, it burns pretty clean
provided you get it hot enough.  Someone suggested burning the waste oil
product with a second box in side the furnace to protect the work from the
misc other impurities etc.

As for a gas forge, why heat a large spot, build a smaller furnace.  I have
also learned to use light weight fire brick strategically placed to limit
the exposure of parts to heat at places I don't want them heated.  I just
move them around with a pair of tongs while the furnace is running.  Some of
them have notches, or holes through the center, others are just splits than
can be stacked to make a "cold" tunnel to protect spots on longer pieces, it
really works out quite handy since my most used forge is very large.  In
fact its downright huge  its 24" in diameter the inside is lined with 4
layers of 1800 degree ceramic fiber blanket, then 1 layer of 2600 degree
fire blanket.  The bottom made from soft fire bricks stacked on pins
protruding through the blanket, then has hard "split" bricks to protect the
soft fire brick as a final floor.  I am thinking about putting a
recuperative chimney on the furnace some day, using some alumina ceramic
tubes, and probably some cast refractable.

one can dream anyways......................

I think however though I am going to experiment with the oil burner,
probably just buy a commercial waste oil burning blower though and build a
ceramic nozzle for it.

----- Original Message -----
From: "Bob Ehrenberger" <[email protected]>
To: "theforge" <[email protected]>
Sent: Monday, April 21, 2003 6:53 AM
Subject: Re: [TheForge] gas forge design

> The local cement factory advertise that they run their kilns on waste oil
> and solvents. So it must be able to be done in an EPA approved way.  I
have
> never toured their plant, but have always assumed that they ran on clean
> fuel and mixed in the waste oil to supliment.
>
> This subject has come up before, I would consider a waste oil forge if I
had
> a good supply of the stuff. Though I really like to work with coal and
don't
> like the way gas forges get such a large area hot.
>
> Bob Ehrenberger
> Shelbyville, Mo
>
> Subject: Re: [TheForge] gas forge design
> Date: Sun, 20 Apr 2003 22:29:51 -0700
> Reply-To: [email protected]
>
> Actually what funny is in Oregon we get tax credits for alternative fuel
> usage, and we are EPA exempt from any regulations if we are using recycled
> waste oil!
>
> It don't get any better than that.  and a simple water water stack
scrubber
> on the furnaces would make em even happier.
>
>
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