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What is the advantage of using precalciner?(a) Fine grained cement(b) Larger clinker size(c) Fuel efficiency(d) Sound cementThe question was posed to me in an internship interview.The doubt is from Manufacture of Cement in division Materials for Construction of Basic Civil Engineering

Answer»

Right ANSWER is (c) FUEL efficiency

Explanation: Almost 95% of calcination is completely over in the precalciner, if 50-60% of fuel is added to this chamber.Hence fuel in the kiln required is less.



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