Method for the mechanical-thermal dewatering of a fiber stock we

Details Method for the mechanical-thermal dewatering of a fiber stock we Method for the mechanical-thermal dewatering of a fiber stock we

1990-01-23

1991-12-10

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

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

34 16, 34111, 100 38, 100 93R, 162359, 1623601, D21F 306, D21F 500

Patent

active

050715135

ABSTRACT:
At least two substantially parallel rows of adjustable pressure elements cooperate with a heatable counter element like a counter roll and are arranged immediately consecutive but separate from each other to define at least two pressing sections of an extended pressing zone through which a water-containing fibrous web is passed conjointly with a water absorbing porous band or felt in a predeterminate travel direction. Pressures and temperatures in each one of the at least two pressing sections of the extended pressing zone are adjusted such that water is displaced from the fibrous web under the combined action of pressure and steam which is formed in the extended pressing zone in a controlled manner and without damage to the fibrous web due to explosion-like flash evaporation.

REFERENCES:
patent: 2907690 (1959-10-01), Hornbostel et al.
patent: 3354035 (1967-11-01), Gottewald et al.
patent: 3970515 (1976-07-01), Busker
patent: 4464226 (1984-08-01), Karrinen
patent: 4468287 (1984-08-01), Dahl
patent: 4506456 (1985-03-01), Lehtiner
patent: 4506457 (1985-03-01), Lehtiner
patent: 4556454 (1985-12-01), Dahl et al.
patent: 4568423 (1986-02-01), Laapotti
patent: 4570314 (1986-02-01), Holik et al.
patent: 4576682 (1986-03-01), Laapotti
patent: 4661206 (1987-03-01), Heitmann et al.
patent: 4738752 (1988-04-01), Busker et al.
Wochenblatt Fur Papierfabrication 1-1987, Article by P. Mirsberger entitled "Ergenbnesse Mit Intensa-Pressen", pp. 7 to 13.
Pulp & Paper Canada 85:7 (1984)-Article by M. N. Radwan et al.-entitled "Application of Hot Pressing on Domtar Paper Machines", pp. 38-42.
Tappi Journal, vol. 66, No. 9-Article by Sven Arenandar et al.-entitled "Impulse Drying Adds New Dimension to Water Removal", pp. 123-126, Sep. 1983.

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