Patent ID: 6109450
Filing Date: 2000-08-29
Classification: B07B

Abstract:
Apparatus for separating contaminants from a fibrous slurry comprising:a rotatable drum having an axis of rotation and a circumferential wall including a screen formed by a plurality of circumferential mutually parallel wedgewires oriented so that (i) a broad surface of each of said wedgewires is directed radially inwardly toward said central axis, and (ii) a narrow edge of each of said wedgewires is directed radially outwardly, and wherein a plurality of mutually parallel openings are defined between said wedgewires, each of said openings having a longitudinal axis which is large relative to the transverse axes of said openings, said openings being disposed with their longitudinal axes extending substantially circumferentially relative to the rotatable drum, said drum having at least one open end;a slurry delivery conveyor terminating adjacent the drum for delivery of slurry within the drum so that a portion of said slurry flows onto said broad surfaces of said wedgewires.