[TheForge] burners

[CGRAF]

Just one more note.
The original of this burner had a damper in the line between the blower 
T and the gas. I thought I might get too much air with just the spill 
gate. It was all the way open when I got done. That probably is due to 
internal resistance in the piping and the forge configuration. It may 
not be the case  in another application.

Mike Graf
>>
>
>    I may have that in from the street, but the regulator at the meter
> cuts me down to between 6.5 and 7 inches of water column.
>
> That being said I have a natural gas forge that I use for heating bulk
> items to forging temps. I did succeed in melting a steel bar once, so I
> suppose that I can get welding temps. Mostly I just fire up the coal
> forge if I am going to weld, or light up the torch.
>
> My NG Burner looking from left to right.
>    1. A large tee "2" inch air from blower  piped into the side so that
> air can flow both ways. The left hand side has a short nipple with a
> spill gate that is easily adjustable.
> 2. To the right is a short nipple and another tee with a 1/8th inch gas
> pipe mounted with a bushing piped into the side. Gas/air mixture flows
> to the right and into side of the forge near the rear.
> 3. Forge  3 inches of kaowool and a 12 inch pipe closeable on either
> end. Usually the rear is blocked off.
> 4.Gas is at about 5 inches of water column is supplied through a
> regulator and two hand shut offs. One shutoff near the forge for
> operating it and another across the room, just in case.
> 5. Air is supplied from a remote furnace vent fan salvaged from a job
> site. It can supply way more than I need.
>
>    This is primitive and entirely devoid of any safety features, but it
> works.
> I run it only with the big door up and shop ventilation on. CO detector
> is a must.
>
>    All that being said, by metering the gas and air supplies I can get
> pretty much any size flame that I need and anywhere from oxidizing to
> reducing atmospheres in the forge.
>
> Mike Graf
>
>
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