And the obvious question .... can the kiln be turned off and hence cooled down for this maintenance?
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And the obvious question .... can the kiln be turned off and hence cooled down for this maintenance?
Well short answer is yes….however we are fully sold across the business therefore customers are at risk..Quote:
Originally Posted by speleomike
Taking the kiln down, cooling time, reheat time, on grade time it we would be maybe 2 weeks without production maybe longer. Not call if there isn’t an issue in the crossover…..hence happy to burn a few dollars in designing something for a quick look.
These kilns don’t like full shutdowns even more so when dumping the rock. 10 + years is the target between full shut downs.
At the temperatures your talking about I'm sure you would get away with an optical fibre down a copper tube with water cooling provided you got the water cooling flow rate right.Quote:
Originally Posted by W&KO
Though copper has fairly low melting point it has very high thermal conductivity. Just got to transfer the heat away from it fast enough and it will stay intact. Will last much longer than 10sec too.
Blast furnace tuyeres (the ports through which hot blast is admitted into a blast furnace) are essentially water cooled copper pipes. The blast is ~1200C and the tuyeres protrude into 2000C environments. They last ~3 months provided they only have to cope with radiation. Splash them with molten metal and it's a different story.