Recovery of pin chips from a chip washing reject stream
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United States of America Patent
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N/A
Issued Date -
Mar 1, 2007
app pub date -
Aug 29, 2005
filing date -
Aug 29, 2005
priority date (Note) -
Abandoned
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Abstract
A recovery process and apparatus employing a pressure water washer to process wood chip wash water, to separate pin chips from sand and dirt contained in the wash water. Wash water from a chip wash system is supplied to a pressure washer having a cylindrical screening basket and a rotor positioned within the basket. The screen basket has holes of 1-3 mm which allows dirt and sand to pass but retains pin chips. The wood fiber pin chips on the way to the accepts outlet thus do not pass through the screen basket. Additional water may be added to the pressure washer to balance the flow of water along and through the screen basket.
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