Discussion
State whether the following is true or false.
A kiln shell hot spot can usually be ignored until the next planned shutdown.
Answer: D
Correct answer: False
A hot spot means the shell is being heated far beyond its design temperature, and steel loses strength rapidly as it heats. Left alone the shell distorts permanently or fails, which is a far larger repair than replacing brick. The response is to cool the spot externally and to plan an early stop, not to wait.
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