METHOD AND INSTALLATION FOR COAL GRINDING IN INERT OPERATION OR IN NON-INERT OPERATION
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United States of America Patent
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Issued Date -
Jun 13, 2013
app pub date -
Aug 23, 2011
filing date -
Sep 2, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a method and an installation for coal grinding in inert operation or in non-inert operation, wherein a proportion of the coal dust produced in a mill is fed to a classifier for separation of super fines. The super fines are fed to a hot gas generator with solid fuel burner in order to heat the re-circulated process gas and to feed it back to the mill. The self-produced coal dust is thus used for the hot gas generation.
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