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State whether the following is true or false.
Cement grinding typically consumes more electricity per tonne than raw grinding.

  • A.False only at small scales
  • B.True
  • C.False
  • D.True only at large scales

Answer: B

Correct answer: True

Cement grinding takes roughly 35 to 45 kilowatt hours per tonne against 15 to 25 for raw grinding, because the clinker is harder and must be taken very much finer. It is the largest single electrical load on a cement plant, which is why so much attention is paid to separators, roller presses and grinding aids.

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