Method and apparatus for removing water from a web by means of p

Details Method and apparatus for removing water from a web by means of p Method and apparatus for removing water from a web by means of p

1996-03-28

1998-01-06

Hastings, Karne M.

Paper making and fiber liberation

Processes and products

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

162306, 1623583, 1623603, D21F 302

Patent

active

057050341

ABSTRACT:
A wet-press arrangement. The flexible press jacket of a shoe press roll removes the web to be dewatered in a first press nip directly from the wire on which the web has been formed. The web then passes, together with the press jacket, through a second press nip which is developed as a felted, lengthened press nip. The web then passes through a third press nip where it is transferred from the smooth outer surface of the press jacket onto the smooth outer surface of a press roll. The web then travels, together with the latter roll, through a fourth press nip, which again is developed as a felted, lengthened press nip. Following that, the web still follows the press roll up to a place of web removal.

REFERENCES:
patent: 2709398 (1955-05-01), Beachler
patent: 3861996 (1975-01-01), Dorfel
patent: 4483745 (1984-11-01), Wicks et al.
patent: 4556451 (1985-12-01), Ely
patent: 4662992 (1987-05-01), Mirsberger
patent: 4915790 (1990-04-01), Dahl
patent: 4923570 (1990-05-01), Steiner et al.
patent: 4988410 (1991-01-01), Meinecke et al.
patent: 5178732 (1993-01-01), Steiner et al.
patent: 5423947 (1995-06-01), Steiner et al.

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