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5:23 am
NWBA Member
January 9, 2011
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I started a two burner atmospheric forge and experienced blue flames protruding about 10-12" out of the openings of the forge. I would have recorded video but the flames started to go back up the burners toward the supply line. I adjusted the pressure regulator, but I didn't notice a change in the flame. The chamber inside the forge is 12" long and 5" wide. Propane supply is from a 30 gallon tank. I think i need to build some burners, or get longer tongs. Cam
5:50 am
NWBA Member
August 7, 2010
Offline
Good Morning,
10-12 Inches of flame outside means you have too much fuel. Jet is too big. Flame burning back into burner means you don't have enough air flow through the burner. The heat should only be at the end of the burners, there should not be heat back up the burner body, next stop is the tank, then the roof!! Go to your local welder supplier and buy the regulator check valves that won't allow the flame to go past them, it doesn't matter if they are $20.00. The roof replacement is $200,000.00!!!!!!
Heat back up the burner is deadly!!!! Quite often it makes a whistling/squealing noise. Learn to hate that noise!!
When the burner is working correct you will get a dull roar from the forge, there will be some blue flame coming out of the forge, 3" from the forge the burner body should be cold. I like to use adjustable propane regulator with a gauge, so you can pay attention to what works.
If the propane bottle starts to freeze up, put it in a bucket of water. Water will act as a heat sink for the propane.
Neil
As long as we are above our shoes, We know where we are.:happy:
1:59 pm
NWBA Member
January 9, 2011
Offline
Thank you for the advice Neil. The gauge I installed was not indicating, another clue pointing to poor quality of the regulator. I think it is time to visit the local welder supply, and to order two Z burners from Zollier forge.
2:16 am
NWBA Member
July 9, 2010
Offline
Cam,
I don't see an air inlet to your burners. Can you give us a description or a detailed photo.
Jeff in Poulsbo
My son is the Blacksmith
2:52 am
NWBA Member
August 7, 2010
Offline
Good Morning,
Good Eye Jeff, I didn't even look at the pictures!!! There is no place for air to enter the mixing tubes!!!!
Cam, you "HAVE TO ALLOW AIR INTO THE BURNER" to mix with the propane/natural gas. An atmospheric burner draws air from the venturi effect of the gas jet placement. A forced air burner has a fan to blow (force) air into the burner. On my forced air burner, I have a large gate valve (2" npt plastic) between the fan motor and the burner body, gas is fed into a 90 degree elbow (OK call it a Tee) so the propane will mix with the air before it gets to the burner tip. Propane pressure is adjustable, air volume is adjustable, fan speed is not adjustable, gas jet can be changed (mig tip). Center of the gas jet "MUST BE IN THE CENTER" of the air flow (not negotiable)!!
Is Natural gas what we create???:bounce:
Neil
As long as we are above our shoes, We know where we are.:happy:
5:42 am
NWBA Member
January 9, 2011
Offline
I was reading Ron Reil's web pages and the burners seem to be a modification of the the mongo burner. The burners are in the shape of a croquet wicket or upside down U. Four holes have been drilled at the top of each tube to admit air. I was thinking that this design would not create a venturi effect at all. The jets are visible through the top hole of each burner tube. The jets are not properly aligned(I believe bent is the word). I can provide pictures, but its late and I have my PJs on. I think the best course of action is to build new burners using Ron Reil's instructions. I thank you gentlemen for your assistance again. Cam p.s. I can drag this mess out to Bruce's hammer in, but I think it would qualify more as a safety hazard at this point.
5:59 am
NWBA Member
July 9, 2010
Offline
Cam,
The "Reil" burner from Ron's site that you show is what I have in one of my forges. It works well and is simple to construct. It will even stay lit outside of the forge like a hand torch. Put one together and try it.
Sure, bring your original over to the hammer in and we'll have a look.
Jeff
Grasp the Cold end, Hit the HOT end.
My son is the Blacksmith
3:07 am
NWBA Member
August 7, 2010
Offline
Good Morning,
That design of burner, Derry Cook brought from Australia. Derry passed away last spring, Creston, B.C. If you want Derry's drawings I can get them, but I think Ron Riel has a pretty good copy. I also have a couple of these burners, if you want to handle one.
Derry was a member of Vancouver Island Blacksmith Association and NWBA. He was a Board member for NWBA for a few years (1994-2000??). He also was instrumental with starting CanIRON in 1997 at the O'Keefe Ranch near Vernon, B.C.
Lorne Bakker in Duncan makes the "Mighty-Mite" Forge. He made all the forges for Kwantlen College new Farrier Classroom/Shop in Langley. We used them when we hosted CanIRON VI in 2007. I have two of his, a single burner and a double burner. During one teaching session, I got distracted when I had 4 - 2" square x 4" hammer blanks in the single burner forge, I opened the door to grab one blank with tongs and the tongs went into the 1045. it was jelly almost. No, they don't get very hot!!! As Hank (who taught at Kwantlen) said, "That's some Forge"!! For those that don't know Hank, he is a man of few words and the times he speaks, you better listen cause he won't say it again.
Neil
As long as we are above our shoes, We know where we are.:happy:
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