Method for drying sludge
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United States of America Patent
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Mar 5, 2013
Grant Date -
Nov 25, 2010
app pub date -
May 28, 2008
filing date -
Jan 25, 2008
priority date (Note) -
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Abstract
A method for drying sludge comprising the following steps: (a) Dry dehydrated sludge to obtain a carrier for drying sludge (6); (b) Transport the carrier for drying sludge (6) and dehydrated sludge to be dried (1) to a stirring and mixing apparatus (2) for stirring and mixing and thereby obtain mixed sludge; (c) Transport the mixed sludge (3) to a drying apparatus (4) for drying; (d) Repeat steps (b) and (c); characterized in that in said step (d) a portion of the mixed sludge (3) obtained from the stirring and mixing apparatus (2) which is in an amount determined by amount of sludge carrier (6) required for drying is extracted and transported to the drying apparatus (4) for drying and the rest of the mixed sludge is discharged as final product (7).
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