Pressure pulp washer

Details Pressure pulp washer Pressure pulp washer

D - Textiles, Paper

21

C

92/60

D21C 9/02 (2006.01) D21C 9/06 (2006.01) D21D 1/40 (2006.01) D21D 5/06 (2006.01)

Patent

CA 1293402

PRESSURE PULP WASHER Abstract of the Disclosure An apparatus for forming on the outside of a permeable, rotatable drum by feeding a pulp slurry through a mat forming and pressing zone, followed by a mat washing zone. In the mat washing zone, the mat is washed with liquid from a first source and then washed with liquid from a second source. A washing baffle has a first portion extending from its upstream end partially along the outside surface of the drum and slightly spaced from the outside surface of the drum. This first portion is followed by a second portion extending partially along the outside surface of the drum and spaced further from the outside surface of the drum than the first portion. A valve is provided for controlling the velocity of liquid through a slot into a circumferential space separating the washing baffle from the drum.

532366

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