Method and apparatus for treating a gas containing aqueous fiber

Details Method and apparatus for treating a gas containing aqueous fiber Method and apparatus for treating a gas containing aqueous fiber

1991-07-29

1993-12-07

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210772, 2101951, 210258, 210260, 162 20, 162 23, 162 25, 162 60, B01D 3700

Patent

active

052676552

ABSTRACT:
Method and apparatus for treating a gas containing aqueous fiber suspension in a fiber line process of a pulp mill including at least one of pulp screening, washing and bleaching includes (a) transferring the gas containing fiber suspension at a consistency to a treatment station; (b) treating said fiber suspension at the same level by removing a portion of the water from the fiber suspension so as to generate aqueous filtrate and treated fiber suspension having a relatively higher consistency; (c) simultaneously pumping and degassing the filtrate at the same level; and (d) pumping the treated fiber suspension having the relatively higher consistency away from the treatment station at the same level by imparting to the treated fiber suspension sufficient shear force so as to render the fiber suspension pumpable.

REFERENCES:
patent: Re28777 (1976-04-01), Wilder
patent: 2571219 (1951-10-01), De Cew
patent: 2685937 (1954-08-01), Clark et al.
patent: 3131117 (1964-04-01), Hickey
patent: 3145134 (1964-08-01), Roberson et al.
patent: 4014736 (1977-03-01), Sexton
patent: 4485646 (1984-12-01), Henricson
patent: 4643800 (1987-02-01), Maloney et al.

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