Method and apparatus for steam packing/presteaming a batch diges

Details Method and apparatus for steam packing/presteaming a batch diges Method and apparatus for steam packing/presteaming a batch diges

1995-06-01

1997-10-07

Czaja, Donald E.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Charging and/or discharging fibrous material

162 68, 162238, 162246, D21C 706

Patent

active

056743602

ABSTRACT:
A batch digester loading method is described wherein a flow stream of steam enters the digester near the bottom thereof as a flow stream of wood chips enters through the top filler neck. Steam flow begins in the bottom portion of the digester at an initial, reduced flow rate after a minimum chip mass is accumulated. Steam flow is thereafter increased at a rate proportional to the inflow rate of chips.

REFERENCES:
patent: 1593147 (1926-07-01), Svensson
patent: 1813205 (1931-07-01), Scholz et al.
patent: 1915410 (1933-06-01), Decker
patent: 2029086 (1936-01-01), Svensson
patent: 2901039 (1959-08-01), Salmonson
patent: 3928123 (1975-12-01), Marks
patent: 4238285 (1980-12-01), Zucker
patent: 5547546 (1996-08-01), Prough et al.
Gary Smook, "Handbook for P & P Tech", 2nd Ed, 1992, pp. 80, 84-89.

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