Dewatering zone in a papermachine

Details Dewatering zone in a papermachine Dewatering zone in a papermachine

1988-07-06

1990-05-08

Chin, Peter

Paper making and fiber liberation

Apparatus

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

162308, 162352, 162363, 162364, 162368, 162370, D21F 100

Patent

active

049235680

ABSTRACT:
A joint dewatering zone of wires for dewatering a web to be formed in a two-wire papermachine having a first wire loop and a second wire loop, includes a first forming roll which is situated inside the second wire loop and other dewatering means which are situated after the first forming roll inside the first wire loop. The other dewatering means comprises as a combination a first suction box, a second suction box with a curved guiding surface, and a roll interposed between the suction boxes.

REFERENCES:
patent: 2369653 (1945-02-01), Berry et al.
patent: 3149027 (1964-09-01), Mih
patent: 3824152 (1974-07-01), Nevalainen
patent: 4125428 (1978-11-01), Phelps
patent: 4176005 (1979-11-01), Bubik et al.
patent: 4207144 (1980-06-01), Meinecke et al.
patent: 4517054 (1985-05-01), Hujala et al.
patent: 4614566 (1986-09-01), Koponen et al.
"Was erwartet der Papiermacher von der Blattbildung und Welche Systeme Stehen ihm zur Verfugung", Wochenblatt for Papierfabrikation 11/12 1981, pp. 361-370.

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