What is “x” in the following flow chart?
A. Rotary kiln
B. Pulverizer
C. Waste- heat boiler
D. Rake classifier
Answer:A
What is “x” in the following flow chart?
A. Rotary kiln B. Pulverizer C. Waste- heat boiler D. Rake classifier
Explanation: In Portland cement production, dry powdered feed or wet slurry is fed to the direct-fired counter-current rotary kiln. The residence time is 1-3 hours and the feed mixture is decarbonated and fused to form the cement compounds.