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Water spray inside a cement mill is used to

  • A.wash the finished cement before dispatch
  • B.increase the moisture content of the product
  • C.help the gypsum dissolve into the clinker
  • D.control the mill temperature by evaporation

Answer: D

A carefully controlled quantity evaporates and removes heat without wetting the cement. Too much would cause pre-hydration, so the spray is metered against the measured mill outlet temperature. Control of the dose is what makes the technique safe.

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