Process and device for production of a pulp web

Details Process and device for production of a pulp web Process and device for production of a pulp web

1996-12-20

2000-02-15

Fortuna, Jose

Paper making and fiber liberation

Processes and products

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

162207, 162201, 162197, 34121, 34117, D21F 702

Patent

active

06024836&

ABSTRACT:
A process and device for producing a pulp web utilizes several independently driven aggregates (i.e., discrete groups) to attain a median web dry content of, e.g., 60%. The number of driven aggregates may depend upon an initial wet strength of the wet pulp web. The relationship is such that when the initial wet strength is relatively high, the number of drier groups is small and when the initial wet strength is relatively low, the number of drier groups is large. However, each drier group includes only a few drier cylinders. The first drier group may include either one or two cylinders, and each subsequent drier group may include at least one drier cylinder more than the adjacent upstream drier group.

REFERENCES:
patent: 2091805 (1937-08-01), Chuse
patent: 3257734 (1966-06-01), Boadway et al.
patent: 3523865 (1970-08-01), Ihrman
patent: 4359828 (1982-11-01), Thomas
patent: 5311672 (1994-05-01), Kotitschke et al.
patent: 5542193 (1996-08-01), Sims et al.
patent: 5638611 (1997-06-01), Oechsle

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