Rotary kilns meant for calcination of limestone are lined with chrome magnesite in ______________ zone?
Correct answer: C. Burning
- A. Preheating
- B. Cooling
- C. Burning
- D. All the above
Explanation
The burning zone of a limestone rotary kiln experiences the highest temperature and severe chemical attack, so chrome-magnesite is used there for its basic character and resistance to corrosion. The preheating and cooling zones generally require less demanding linings.
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