Method of washing sawdust and arrangement for carrying out the method
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United States of America Patent
Stats
-
Jun 29, 1999
Grant Date -
N/A
app pub date -
Mar 27, 1997
filing date -
Apr 11, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Methods for washing sawdust are disclosed which include providing a mixture of sawdust and water to a vessel, subjecting the mixture to a reduced pressure so that gases present in the sawdust cause expansion therein and the sawdust rises to the surface of the mixture while the contaminants descend within the vessel, and withdrawing the sawdust from the vessel, in which the sawdust is withdrawn from the vessel at a location above the point where the sawdust and water enter the vessel. Apparatus for carrying out this method is also disclosed.
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