Apparatus and method for feeding materials to a cement mill
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United States of America Patent
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Apr 20, 2010
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app pub date -
Nov 21, 2006
filing date -
Nov 21, 2006
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Abstract
A flow enhanced calcium sulfate product includes a calcium sulfate source material, such as a flue gas desulphurization by-product, is pre-blended with a granular feedstock exhibiting good cementitious properties. The flow enhanced calcium sulfate is fed to a cement mill where it is combined with clinker during a finishing grinding process for portland cement. The flow enhanced calcium sulfate exhibits good flowability without changing the properties of the cement.
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