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castable venturi burner

updated tue 28 oct 08

 

Taylor Hendrix on thu 23 oct 08


Hey everyone,

I was looking through one of the Ceramic Monthly Handbooks and came
across W. Lowell Baker's article on burners. In the article he
mentions the "Appalachian Burner" and I was wondering if anybody has
experience with these type of home made burners. Hmm, anyone from
Smithville maybe?

Very interesting article, but just two pages. Wish there were more.
Taylor, in Rockport TX
wirerabbit1 on Skype (-0500 UTC)
http://wirerabbit.blogspot.com
http://wirerabbitpots.blogspot.com
http://www.flickr.com/photos/wirerabbit/

DRB Seattle on fri 24 oct 08


Taylor somewhere on this site-
http://www.backyardmetalcasting.com/index.html
There was a description of a castable oil burner.=A0couldn't locate it but =
maybe you could e-mail the guy.=A0 WHILE GOOGLING TO FIND THIS=A0I=A0=A0 I =
also found-
http://users.ticnet.com/mikefirth/burner.htm
Which also could be useful
And for more fun check out-
http://www.steamesteem.com/
Duff

--- On Thu, 10/23/08, Taylor Hendrix wrote:

From: Taylor Hendrix
Subject: Castable venturi burner
To: CLAYART@LSV.CERAMICS.ORG
Date: Thursday, October 23, 2008, 6:17 PM

Hey everyone,

I was looking through one of the Ceramic Monthly Handbooks and came
across W. Lowell Baker's article on burners. In the article he
mentions the "Appalachian Burner" and I was wondering if anybody has
experience with these type of home made burners. Hmm, anyone from
Smithville maybe?

Very interesting article, but just two pages. Wish there were more.
Taylor, in Rockport TX
wirerabbit1 on Skype (-0500 UTC)
http://wirerabbit.blogspot.com
http://wirerabbitpots.blogspot.com
http://www.flickr.com/photos/wirerabbit/
=0A=0A=0A

Vince Pitelka on fri 24 oct 08


Mr. Taylor "Jimmie" Hendrix wrote:
"I was looking through one of the Ceramic Monthly Handbooks and came
across W. Lowell Baker's article on burners. In the article he
mentions the "Appalachian Burner" and I was wondering if anybody has
experience with these type of home made burners. Hmm, anyone from
Smithville maybe?"

Taylor -=20
When I arrived at the Appalachian Center for Craft in 1994 there were =
two old Norman updraft kilns with undermounted ceramic venturi burner =
tubes, and they were in terrible shape. Many were cracked, and had been =
wrapped with aluminum flashing with a hose-clamp around the outside to =
hold everything together. I took one good burner tube and measured the =
outside diameter. It was almost exactly the inside diameter of 2" black =
iron pipe, so I took a piece of such pipe, cut it to the appropriate =
length, and cut it in half lengthwise with a hacksaw in order to =
minimize loss from the saw kerf. =20

I made two wood spindles that fit the interior bore of the burner from =
either end. As with all venturis, the bore tapers smaller in the =
center, so a single spindle would not work - you could not remove it. I =
sprayed the inside of the pipe halves with WD-40, fastened the two =
halves shut with two hose clamps and packed it full with a claybody made =
from 60% mullite grog and 40% fireclay. I scored it off on each end and =
made a hole dead center in each end with a pointed piece of 1/4" dowel. =
I kept working these holes until they met in the center. I graduated up =
to 3/8" and then 1/2" dowel, and in each case I shaved off any displaced =
clay from the ends of the pipe. Finally I graduate up to the spindles. =
I forced one in from one end, and removed any clay displaced from either =
end. I forced the other spindle into the other end, and same thing. I =
alternated back and forth between these two spindles until I got a nice =
clean bore exactly the same shape as the original one.=20

Buy the way, the last time I made such burner tubes was in the spring of =
1995 when I overhauled the burner systems on those kilns. I replaced =
all of the tubes that were broken, and the ones I installed are still in =
perfect shape, so my system worked pretty well.

Each one of these burners stands up vertically in a little steel collar =
that has the gas orifice centered in the middle, so the ceramic part is =
just the venturi tube. The collar is attached to the steel nipple that =
screws into the burner manifold under the kiln. When I get some time, I =
could photograph the various burner, mold, and spindle parts and send =
you the pictures along with some dimensions. As far as I can see, this =
particular design would only work for a vertically-placed undermounted =
burner. I have never considered any other arrangement. =20
- Vince

Vince Pitelka
Appalachian Center for Craft
Tennessee Tech University
vpitelka@dtccom.net; wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka

=?ISO-8859-1?Q?Elliott_Faur=E9?= on sat 25 oct 08


*"When I get some time, I could photograph the various burner, mold, and
spindle parts and send you the pictures along with some dimensions."*

Oh, yes, please do!

EF

On Sat, Oct 25, 2008 at 2:57 AM, Vince Pitelka wrote:

> Mr. Taylor "Jimmie" Hendrix wrote:
> "I was looking through one of the Ceramic Monthly Handbooks and came
> across W. Lowell Baker's article on burners. In the article he
> mentions the "Appalachian Burner" and I was wondering if anybody has
> experience with these type of home made burners. Hmm, anyone from
> Smithville maybe?"
>
> Taylor -
> When I arrived at the Appalachian Center for Craft in 1994 there were two
> old Norman updraft kilns with undermounted ceramic venturi burner tubes, and
> they were in terrible shape. Many were cracked, and had been wrapped with
> aluminum flashing with a hose-clamp around the outside to hold everything
> together. I took one good burner tube and measured the outside diameter.
> It was almost exactly the inside diameter of 2" black iron pipe, so I took
> a piece of such pipe, cut it to the appropriate length, and cut it in half
> lengthwise with a hacksaw in order to minimize loss from the saw kerf.
>
> I made two wood spindles that fit the interior bore of the burner from
> either end. As with all venturis, the bore tapers smaller in the center, so
> a single spindle would not work - you could not remove it. I sprayed the
> inside of the pipe halves with WD-40, fastened the two halves shut with two
> hose clamps and packed it full with a claybody made from 60% mullite grog
> and 40% fireclay. I scored it off on each end and made a hole dead center
> in each end with a pointed piece of 1/4" dowel. I kept working these holes
> until they met in the center. I graduated up to 3/8" and then 1/2" dowel,
> and in each case I shaved off any displaced clay from the ends of the pipe.
> Finally I graduate up to the spindles. I forced one in from one end, and
> removed any clay displaced from either end. I forced the other spindle into
> the other end, and same thing. I alternated back and forth between these
> two spindles until I got a nice clean bore exactly the same shape as the
> original one.
>
> Buy the way, the last time I made such burner tubes was in the spring of
> 1995 when I overhauled the burner systems on those kilns. I replaced all of
> the tubes that were broken, and the ones I installed are still in perfect
> shape, so my system worked pretty well.
>
> Each one of these burners stands up vertically in a little steel collar
> that has the gas orifice centered in the middle, so the ceramic part is just
> the venturi tube. The collar is attached to the steel nipple that screws
> into the burner manifold under the kiln. When I get some time, I could
> photograph the various burner, mold, and spindle parts and send you the
> pictures along with some dimensions. As far as I can see, this particular
> design would only work for a vertically-placed undermounted burner. I have
> never considered any other arrangement.
> - Vince
>
> Vince Pitelka
> Appalachian Center for Craft
> Tennessee Tech University
> vpitelka@dtccom.net; wpitelka@tntech.edu
> http://iweb.tntech.edu/wpitelka
>

jonathan byler on mon 27 oct 08


vince,

I would be interested in seeing pictures of this too, if you would =20
not mind sending them.
by the way, our new soda kiln is coming along nicely. I should see =20
about posting pics to a blog or something.

-jon


jon byler
3-D Building Coordinator
Art Department
Auburn University, AL 36849

On Oct 25, 2008, at 6:21 AM, Elliott Faur=E9 wrote:

> *"When I get some time, I could photograph the various burner, =20
> mold, and
> spindle parts and send you the pictures along with some dimensions."*
>
> Oh, yes, please do!
>
> EF
>
> On Sat, Oct 25, 2008 at 2:57 AM, Vince Pitelka =20
> wrote:
>
>> Mr. Taylor "Jimmie" Hendrix wrote:
>> "I was looking through one of the Ceramic Monthly Handbooks and came
>> across W. Lowell Baker's article on burners. In the article he
>> mentions the "Appalachian Burner" and I was wondering if anybody has
>> experience with these type of home made burners. Hmm, anyone from
>> Smithville maybe?"
>>
>> Taylor -
>> When I arrived at the Appalachian Center for Craft in 1994 there =20
>> were two
>> old Norman updraft kilns with undermounted ceramic venturi burner =20
>> tubes, and
>> they were in terrible shape. Many were cracked, and had been =20
>> wrapped with
>> aluminum flashing with a hose-clamp around the outside to hold =20
>> everything
>> together. I took one good burner tube and measured the outside =20
>> diameter.
>> It was almost exactly the inside diameter of 2" black iron pipe, =20
>> so I took
>> a piece of such pipe, cut it to the appropriate length, and cut it =20=

>> in half
>> lengthwise with a hacksaw in order to minimize loss from the saw =20
>> kerf.
>>
>> I made two wood spindles that fit the interior bore of the burner =20
>> from
>> either end. As with all venturis, the bore tapers smaller in the =20
>> center, so
>> a single spindle would not work - you could not remove it. I =20
>> sprayed the
>> inside of the pipe halves with WD-40, fastened the two halves shut =20=

>> with two
>> hose clamps and packed it full with a claybody made from 60% =20
>> mullite grog
>> and 40% fireclay. I scored it off on each end and made a hole =20
>> dead center
>> in each end with a pointed piece of 1/4" dowel. I kept working =20
>> these holes
>> until they met in the center. I graduated up to 3/8" and then =20
>> 1/2" dowel,
>> and in each case I shaved off any displaced clay from the ends of =20
>> the pipe.
>> Finally I graduate up to the spindles. I forced one in from one =20
>> end, and
>> removed any clay displaced from either end. I forced the other =20
>> spindle into
>> the other end, and same thing. I alternated back and forth =20
>> between these
>> two spindles until I got a nice clean bore exactly the same shape =20
>> as the
>> original one.
>>
>> Buy the way, the last time I made such burner tubes was in the =20
>> spring of
>> 1995 when I overhauled the burner systems on those kilns. I =20
>> replaced all of
>> the tubes that were broken, and the ones I installed are still in =20
>> perfect
>> shape, so my system worked pretty well.
>>
>> Each one of these burners stands up vertically in a little steel =20
>> collar
>> that has the gas orifice centered in the middle, so the ceramic =20
>> part is just
>> the venturi tube. The collar is attached to the steel nipple that =20=

>> screws
>> into the burner manifold under the kiln. When I get some time, I =20
>> could
>> photograph the various burner, mold, and spindle parts and send =20
>> you the
>> pictures along with some dimensions. As far as I can see, this =20
>> particular
>> design would only work for a vertically-placed undermounted =20
>> burner. I have
>> never considered any other arrangement.
>> - Vince
>>
>> Vince Pitelka
>> Appalachian Center for Craft
>> Tennessee Tech University
>> vpitelka@dtccom.net; wpitelka@tntech.edu
>> http://iweb.tntech.edu/wpitelka
>>

Taylor Hendrix on mon 27 oct 08


Yeah Vince:

I thought you might have run into something there at the Center.

The small article in _Studio practices, techniques and tips :
a collection of articles from Ceramics monthly_ ,"Castable venturi
burner" by W. Lowell Baker, doesn't really have a bunch of pictures
but it does contain enough info to make a go of it.

Looking forward to some pictures of your replacements.

Taylor, in Rockport TX
wirerabbit1 on Skype (-0500 UTC)
http://wirerabbit.blogspot.com
http://wirerabbitpots.blogspot.com
http://www.flickr.com/photos/wirerabbit/



On Fri, Oct 24, 2008 at 7:57 PM, Vince Pitelka wrote:
... When I get some time, I could photograph the various burner,
mold, and spindle parts and send you the pictures along with some
dimensions. As far as I can see, this particular design would only
work for a vertically-placed undermounted burner. I have never
considered any other arrangement.
> - Vince
...