Pressure pulp washer

Details Pressure pulp washer Pressure pulp washer

1988-08-26

1990-01-16

Alvo, Steve

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

68 43, 68158, 68181R, 162380, 210402, D21C 902, D21C 906

Patent

active

048941212

ABSTRACT:
A method and 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 the 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.

REFERENCES:
patent: 3190792 (1965-06-01), Beachler
patent: 3772144 (1973-11-01), Luthi et al.
patent: 3856617 (1974-12-01), Fukuzaki
patent: 4085003 (1978-04-01), Luthi
patent: 4521314 (1985-06-01), Lundin et al.
Tappi Journal, vol. 67, No. 11, p. 80A, Rauma-Repola PW Washer.
Tappi Journal, Nov. 1984, Rauma-Repola Pro Feed Washer.
Paper Trade Journal, p. 35, Mar. 1985, Rauma-Repola PW Washer.
Pulp & Paper Int., p. 54, Mar. 1985, Rauma-Repola PW Washers.

Affiliated with

Also associated with

Rating

Pressure pulp washer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure pulp washer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure pulp washer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1333278