B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
209/108
B07B 1/18 (2006.01) D21D 5/02 (2006.01)
Patent
CA 1136585
Docket 6369 HIGH TURBULENCE SLOTTED CIRCULAR SCREEN WITH COLUMN-SPACED ROTATING CLEANERS Abstract of the Disclosure A method and apparatus for treating a suspension of liquid, paper making fibers and undesirable rejects to remove a substantial portion of the rejects from the suspen- sion. A cylindrical screen is utilized which has narrow slots on the order of 0.001 to 0.008 inch in width disposed normally with respect to the screen axis, and bars projec- ting from the inlet face of the screen and cooperating with rotating foils for creating a field of high intensity, fine scale turbulence adjacent the inlet face of the screen. This permits the paper making fibers to pass through the narrow screen openings but causes very small reject particles, which would pass through the larger openings of conventional paper making screens, to be removed without fractionation of the paper making stock or appreciable variation in the consistencies of the feed, accepts and rejects.
297005
Chupka David E.
Seifert Peter
Black Clawson Company (the)
Gowling Lafleur Henderson Llp
LandOfFree
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