Apparatus for producing cement clinker
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United States of America Patent
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-
Nov 26, 2002
Grant Date -
N/A
app pub date -
Jun 27, 2000
filing date -
Jun 25, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
It is required with respect to the production of cement clinker from wet slurry raw materials that are calcined to cement clinker in a drying-rotary pipe furnace, which is preceded by a cyclone suspension type heat exchanger system, after the materials have been processed--to initially mechanically dewater the raw meal slurry up to a moisture of approximately 20% and to subsequently thermally dry the materials up to a residual moisture of approximately 0.5 through 1.0%. It is inventively proposed to carry out this thermal drying in a static cascade-step drier, whereby hot gas from the cyclone heat exchangers, in cross current, is led through the step drier for the drying.
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