Fermenter comprising an agitator
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United States of America Patent
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Feb 9, 2010
Grant Date -
Jun 12, 2008
app pub date -
Nov 4, 2005
filing date -
Jan 26, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A plug-flow operated, horizontal fermenter for anaerobic fermentation of biogenic waste includes a fermenter tank having an inlet and an outlet that is configured to be filled with a biomass material. The fermenter also includes an agitator having a shaft passing through the fermenter tank in its longitudinal direction, wherein the shaft is mounted in end regions of the fermenter tank and is designed as a closed, hollow shaft having an inner space filled with gas or air. A plurality of agitator arms are arranged on the shaft. The inner space of the shaft is monitored with respect to a gas or air pressure to ensure that a buoyancy of the shaft in the filled fermenter tank at least approximately compensates for a sagging of the shaft.
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