Headbox for paper machine with parallel twisted plates

Details Headbox for paper machine with parallel twisted plates Headbox for paper machine with parallel twisted plates

1987-09-21

1989-03-14

Lacey, David L.

Paper making and fiber liberation

Apparatus

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

162336, 162344, D21F 102

Patent

active

048122084

ABSTRACT:
A plurality of stages of parallel twisted plates extend in a slurry passage adjacent to a slice outlet of a head box in the direction of papermaking slurry flow therethrough and are spaced apart from each other by a predetermined distance. The twisted plates directly cause the slurry flowing through the head box to swirl. Adjacent vortex flows of the slurry interfere with each other, resulting in the violent agitation of the slurry.

REFERENCES:
patent: 3328236 (1967-06-01), Burgess, Jr. et al.
patent: 3607625 (1977-09-01), Hill et al.
patent: 3839149 (1974-10-01), Justus et al.
patent: 3843470 (1974-10-01), Betley et al.
patent: 4504360 (1985-03-01), Fujiwari
patent: 4604164 (1986-08-01), Fujiwari et al.

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