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This is the back of the
kiln stack, with wiring and plumbing installed. We have a solenoid
switch to shut off the gas in the event of a power hiccup.
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Our new L&L 10 cu.ft.
Electric Kiln, which will primarily used for bisque firings of short loads.
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The sprung arch is 3/4 removed,
with original arch form in place. I had layed it up dry, and tuck
pointed the exterior edges. Broke about ten arch bricks getting it
apart.
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The arch is removed and
the walls are torn down. Had to replace hard brick by the burner
ports, plus when I rebrick it, I want to put stretcher courses every five
layers. Had problems thru the years with inner course wall separating
from the outer wall at the top, where the door closes.
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Burner port hard bricks
replaced, going vertical. We are rebuilding it with a combination
of firebrick. Candace had traded a piece of equipment for enough
K 26 brick to do about seven courses. They are higher than standard
brick, so I layed them on the interior and exterior walls. When I
ran out, I switched to USS Saratoga (CVA 60) boiler brick that I bought
cheap from a surplus lot down the street. They had to be dried out
first. These have the two yellow stripes. I contacted the manufacturer
and found they are K 25 brick. So I'm laying them on the interior
wall, and using recycled k23's from the tear down for the exterior wall.
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Arch bricks cleaned, corrosion
control to kiln frame, primer to go. Ordered and recieved a box of
#1 arch brick to replace pieces broken in removal. Also pulled the
door and ground hinge tongues on 2 lower hinges to releive some binding
that had plagued us for years.
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I'm grinding out high spots
in the brick to keep everything level. Also, primed the frame when
rust was removed. We also did the test firing on the L&L electric
kiln, and it passed with flying colors.
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The sprung arch is back
in place. A few bricks on the back of the arch to lay. Will
cover arch with two layers of fibrefax for additional insulation.
Rebricking the door is next,
then a test fire to dry everything out.
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The door is rebricked, starting
to apply gasket. Note valve springs at top to form a pressure plate.
There are also 3 horizontal 1/2 inch rods to keep the bricks in.
Peep holes to go.(Click on image to enlarge)
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I have layed two layers
of Inswool on the arch of the kiln.
I would like to plug Harbison
Walker, out of Charlotte, NC, for great response and support for the arch
bricks, mortar, and Inswool.
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Plumbed the solenoid valve
to the gas, and testing the burners. Pilots are lit and driving out
any moisture, without the damper on.
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The gasket is in the door
and the peep holes drilled. Fired pilots for six hours. (Click
on image to enlarge)
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The Raku Kiln Shed roof
is installed. The Kiln Shed kinda looks like a tobacco barn.
Pouring a base slab and moving the raku kiln to go. (Click on image
to enlarge)
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The raku kiln as moved to
it's new pad. Test fired, cut the counterweight block in half for
neutral balance. We fired the Big kiln in a glaze firing and she
passed all tests. We are back in business!
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