Method and installation for production of cement clinker
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United States of America Patent
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-
Feb 24, 2004
Grant Date -
Nov 28, 2002
app pub date -
Apr 15, 2002
filing date -
Apr 24, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the production of cement clinker or cement with the addition of a cement additive (40), such as for example slag, which is ground in a closed-circuit grinding installation into slag meal (32) of equal fineness to cement, in order to utilize excess slag capacity in a beneficial way in the cement clinker production process, an intermediate slag fraction (33, 34) withdrawn from a three-fraction classifying device (31) is added as a raw material component to the stock inlet of the rotary kiln (20) of the cement clinker production line, and at the same time the chemical composition of the remaining raw material components (10) is adapted to the added quantity (34) of the intermediate slag fraction.
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