Apparatus for regulating pulp density

Details Apparatus for regulating pulp density Apparatus for regulating pulp density

1980-11-19

1983-01-11

Alvo, Steve

Paper making and fiber liberation

Apparatus

Automatic control

162259, 162310, 162311, D21F 108, D21F 148

Patent

active

043681026

ABSTRACT:
A method of and apparatus for regulating the pulp density above the moving screen of a machine which forms a continuous web from a fibrous suspension is disclosed. In its method aspects, the present invention discloses introducing water into the suspension located above the moving screen while also controlling the rate of flow and quantity of the water passing through the screen. In its apparatus aspects, the present invention discloses at least one plate arranged between the screen and a suspension containing chamber located beneath said screen, which plate includes water discharge openings on the side facing the chamber, at least one water support line communicating with the opposite side of the chamber and means for regulating the water discharge of the water supply into the chamber.

REFERENCES:
patent: 1623278 (1927-04-01), Sears et al.
patent: 1746434 (1930-02-01), Lowe
patent: 2028952 (1935-11-01), Reiner
patent: 2683415 (1954-11-01), Schur
patent: 3052295 (1962-09-01), Magill, Jr.
patent: 3564631 (1971-02-01), Burling
patent: 3981768 (1976-09-01), Lentinen
patent: 3989085 (1976-11-01), Crosby
patent: 4011311 (1977-03-01), Nicholson

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