Method and apparatus for filling a pressure treatment vessel wit

Details Method and apparatus for filling a pressure treatment vessel wit Method and apparatus for filling a pressure treatment vessel wit

1975-06-09

1978-03-14

Bashore, S. Leon

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Continuous chemical treatment or continuous charging or...

162 19, 162 40, 162 49, 162 52, 162237, 162238, 162246, 222194, 222 17, D21C 706, D21C 712, D21C 714

Patent

active

040789640

ABSTRACT:
A method and apparatus for filling a treatment vessel with a fiber material -- liquid mixture. A conventional feeder rotor, having a number of pockets extending therethrough, has each pocket thereof sequentially filled with chips-liquid mixture in a first position from a pretreatment vessel. A portion of the liquid is withdrawn from the pocket, and the pocket rotates to a second position wherein the chips-liquid mixture in the pocket is discharged into a digester by a liquid flow. The pocket then rotates to a third position wherein the liquid in the pocket is discharged by admitting a gas, such as steam, under pressure into the pocket (and the pocket simultaneously filled with gas), and then to a fourth position wherein the gas is allowed to expand and be transported to a pretreatment vessel while the pocket is filled with cooking liquor, and thereby is ready to begin another cycle.

REFERENCES:
patent: 2680683 (1954-06-01), Obershain
patent: 3007839 (1961-11-01), Richter
patent: 3429773 (1969-02-01), Richter
patent: 3433392 (1969-03-01), Roesig et al.
patent: 3441475 (1969-04-01), Tomlinson
patent: 3537953 (1970-11-01), Brown et al.
patent: 3585002 (1971-06-01), Boys
patent: 3921918 (1975-11-01), Peterson

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