Method for conveying, mixing, and leveling dewatered pulp prior to drying

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United States of America Patent

PATENT NO 7601243
APP PUB NO 20080216981A1
SERIAL NO

12122934

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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System for conveying, mixing, leveling, and flaking dewatered pulp to produce pulp flakes suitable to be used in a dryer. The system produces a consistent flow rate of pulp and uniform pulp flakes in terms of pulp flake size and pulp flake moisture content. The system includes a rotating shaftless screw conveyor for mixing and conveying dewatered pulp. The system includes a belt conveyor. The pulp is deposited from the screw conveyor onto the moving belt conveyor through a chute. The system includes a rotary doctor. The pulp is leveled with the rotary doctor located above the belt conveyor to produce a substantially even rate of mass flow of pulp along a length of belt conveyor. Uniform and consistent quantities of pulp per unit time can then be fed from the belt conveyor to a pulp flaker that then translates into an even rate of pulp mass flow to the dryer.

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Patent Owner(s)

Patent OwnerAddress
WEYERHAEUSER NR COMPANYPO BOX 9777 CH1J27 FEDERAL WAY WA 98063-9777

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
DeZutter, Ramon C Milton , US 10 187
Tveter, Christopher Q Auburn , US 6 44

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