Cement system and method for operating a cement system
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United States of America Patent
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Jul 1, 2014
Grant Date -
Jun 2, 2011
app pub date -
Jul 28, 2009
filing date -
Aug 4, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In the method according to the invention for operating a cement plant, the raw meal is preheated in a preheating zone, the preheated material is precalcined in a calcining zone and the precalcined material is finally sintered in a sintering zone. The cement plant is operated in such a manner that the precalcined material which is supplied to the sintering zone has an SO3 concentration of at least 5.5% by mass and a CaSO4 proportion of at least 75%, preferably 90%, of the total salt content.
First Claim
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International Classification(s)
- F23J:REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COM....
- C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....
- F27B:FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPE....
- F23N:REGULATING OR CONTROLLING COMBUSTION
- F27D:DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, ....
- F23B:METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOL....
- F23C:METHODS OR APPARATUS FOR COMBUSTION USING FLUENT F....
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