David Hendley on sun 19 jun 05
Sally asks about using firebricks from a lime company for a pottery
kiln. The critical question is weather the kilns were "continuous
kilns" or "periodic kilns" (I have no idea what a lime company does
with its kilns).
The problem can be that, for a continuous kiln, high-silica bricks are
often used. A high-silica brick helps withstand the high 2500-degree
temperature. The problem is that such bricks have very little resistance
to thermal shock, and they will crack and crumble if subjected to the
constant heating and cooling of a periodic pottery kiln. They were
made to be slowly heated and then never cooled down again, for the
life of the kiln.
David Hendley
I don't know nothin' but the blues, cobalt that is.
david@farmpots.com
http://www.farmpots.com
----- Original Message -----
> Is there a type of kiln which can be built using industrial arch kiln
> bricks
> used for a lime company? The smallest of the 2 sizes of bricks is 8 x 6 x
> 4
> x 9, and the largest one weighs around 18 lbs. If you connect the bricks
> for a half circle, the base is about 9 feet. The kilns were fired to 2500
> degrees and are in excellent shape. The type of kiln the bricks came out
> of
> was a circular kiln.
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