it builds suspense....I'm on the edge of my seat !
See: engage the audience.
I have already mentioned pyrolytic decomposition in another thread, but there are other projects.
Besides, without close direction, the discussion may take an interesting turn...
NorthernMonkeyGirl
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Without knowing what you are insulating, I can only suggest asking a local crematorium what they use for heatproofing...
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Woo
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Fibre glass.
I wouldn't trust the extruded stuff. we had a fire in the genie house which we had insulated with the sheets of kingspan type stuff for sound proofing and it was a sticky mess! the wiring held out longer!
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dpack
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assuming keep the heat in rather than make the outside cool
fibre glass up to about 650 c,rockwool a little higher maybe 700c
above that you would be best off with a refractory lining and lots of heat as a lot of metals will start to soften ,react too much,degrade or just melt above that sort of temp
with a pyrolosis unit i would think either glass or rock would do
rockwool is less itchy and probably less damaging to lungs ,whichever if you are shaking and rolling so to speak rubber gloves and a dust mask are sensible
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Hairyloon
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Fibreglass also has the advantage that I have some left over from the loft.
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gz
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HTI (high temperature insulation) bricks, made from China clay plus other stuff, used to build kilns....my kiln is made from these and I fired it regularly to1300 C I should say that the hot face of them could have been going to 1400plus.....yoou get different grades,next down you don't take over 1240 C
You can build kilns from ceramic fibre blanket, but it does get brittle after a few firings = dust =danger
All depends what you're doing to what temperature.
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Hairyloon
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A friend was talking to me about kilns recently. I'd mostly decided they would be fairly tricky to build... You may have just changed my mind.
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Mistress Rose
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If you have enough mass, you won't need to insulate a pyrolytic decomposition burner too much. Our charcoal kiln is just a ring of steel, and we managed to get small amounts of wood tar out of a contraption built out of scrap iron and steel, including part of an old saw by the looks of things. Cooling the distillate will be the most important thing while checking the temperature so that the different fractions can be separated.
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