Apparatus for treating cellulosic material

Details Apparatus for treating cellulosic material Apparatus for treating cellulosic material

D - Textiles, Paper

21

C

92/59

D21C 7/00 (2006.01) B01J 3/02 (2006.01)

Patent

CA 1230002

APPARATUS FOR TREATING CELLULOSIC MATERIAL ABSTRACT OF THE DISCLOSURE Cellulosic material, such as wood chips, is fed from a storage bin (10) through a compating screw feeder (12) to an impregnation chamber (16) in housing (14) wherein the material is contacted with a treatment liquid. The impregnated chips and treatment liquid are passed from chamber (16) by a triple flight intermeshing screw feeder (18) directly to the interior of an inclined treatment vessel (20) wherein the material is digested by cooking at elevated temperature and pressure in both the treatment liquid and a treatment vapor.

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