Snail Scott on sat 15 aug 09
On Aug 15, 2009, at 6:27 PM, Ann Baker wrote:
> Because the lid is
> so heavy (has a welded steel frame around it) I am considering making a
> substitute lid from ceramic fiber blanket. I fire to cone 6. Will
> this work...?
Try using fiberboard instead. It is nice and rigid.
-Snail
Michael Wendt on sat 15 aug 09
Ann,
I suggest you look at:
http://www.wendtpottery.com/kilns.htm
because of ceiling height concerns like yours,
the two large ring kilns are split at a convenient level to
allow easy loading. They are lifted by cables over pulleys
to a counterweight of the exact weight as the lifted section
(I weighed all the components and used the same amount of
concrete to make manageable blocks).
The counterweight slides on a single pipe and the kiln is
leveled by means of a heavy turnbuckle on one of the cables.
The rear pulleys are synchronized by means of a solid shaft
keyed to the pulleys and supported on both ends by pillow
blocks.
For those who don't weld, I also offer custom fabrication of
such hoists to fit your application.
Regards,
Michael Wendt
Monica Wright on sun 16 aug 09
How about fiber board?=3DA0 Always liked that stuff.=3DA0 Not the loose fib=
ers =3D
like with the blanket.=3DA0 Not sure what sizes it comes in though.
--- On Sat, 8/15/09, Ann Baker wrote:
From: Ann Baker
Subject: alternative kiln lid
To: Clayart@LSV.CERAMICS.ORG
Date: Saturday, August 15, 2009, 6:27 PM
I have an L&L Da Vinci T3445 kiln, which is a very large rectangle kiln.=3D=
20
Because of the type of work I do I have a system where I unstack and re
stack the rings in order to load it.=3DA0 This is my alternative to a Bell =
Li=3D
ft
system as I don't have the head room for the Bell Lift.=3DA0 Because the li=
d =3D
is
so heavy (has a welded steel frame around it) I am considering making a
substitute lid from ceramic fiber blanket.=3DA0 I fire to cone 6. Will this=
w=3D
ork
or just leak heat and waste power?=3DA0 Any tips on how to accomplish a 4' =
x =3D
3'
lid of fiber blanket?=3DA0 Could I just lay thick, oversized layers across =
th=3D
e
top with plenty of hangover?
Just a thought.=3DA0 Try to simplify.
ann b
William & Susan Schran User on sun 16 aug 09
On 8/15/09 7:27 PM, "Ann Baker" wrote:
> Because the lid is
> so heavy (has a welded steel frame around it) I am considering making a
> substitute lid from ceramic fiber blanket. I fire to cone 6. Will this w=
ork
> or just leak heat and waste power? Any tips on how to accomplish a 4' x =
3'
> lid of fiber blanket? Could I just lay thick, oversized layers across th=
e
> top with plenty of hangover?
If you decide to go this route, the fiber will need some type of support
system. I would think the minimum thickness would be 2" and probably need i=
t
thicker. I would expect the fiber to lose heat MUCH faster than brick, so
you may run into cooling issues. You'll probably need to construct a "box"
of expanded metal with stiffer angle iron (or similar metal bracing) to hol=
d
the fiber in place. You'll also need ceramic buttons, wired through to the
frame, to hold the fiber up into the structure. With all this, you may not
save all that much on weight.
On the other hand, there might be an option using a rigid fiber board.
I ran across this:
And on Bailey's site, there's information about fiber board and ceramic
anchors:
Also ran across this about building fiber kiln:
You can also investigate an industrial company to have a custom lid made,
though that might be very costly:
Bill
--
William "Bill" Schran
wschran@cox.net
wschran@nvcc.edu
http://www.creativecreekartisans.com
liz gowen on sun 16 aug 09
I'd save your money on the rigid fiber board. I tried this as a second lid
to lay on top of the existing lid on my kiln to help insulate it. It worked
fine until you go to take it off. Whatever was holding it together burned
out and left patches of powdered fiber which got worse with each firing. I
tried a thin layer of kiln cement but it just cracked. What a mess.
Liz Gowen
Re: On the other hand, there might be an option using a rigid fiber board.
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