SE9001782L - CONTINUOUS COOKING WITH REDUCED COST, POWER CONSUMPTION AND MASS DEGREE - Google Patents
CONTINUOUS COOKING WITH REDUCED COST, POWER CONSUMPTION AND MASS DEGREEInfo
- Publication number
- SE9001782L SE9001782L SE9001782A SE9001782A SE9001782L SE 9001782 L SE9001782 L SE 9001782L SE 9001782 A SE9001782 A SE 9001782A SE 9001782 A SE9001782 A SE 9001782A SE 9001782 L SE9001782 L SE 9001782L
- Authority
- SE
- Sweden
- Prior art keywords
- digester
- impregnation vessel
- power consumption
- continuous cooking
- reduced cost
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
- D21C7/14—Means for circulating the lye
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
Abstract
In the continuous cooking of comminuted cellulosic fibrous material (e.g. wood chips) to produce paper pulp, the material passes upwardly in an impregnation vessel (34) which is within and concentric with a continuous digester (32) and open at the top to digester pressure. At the top of the impregnation vessel, a solids/liquid separator (36) (a screw (37) within a screen cylinder (38)) is provided. Separated liquid is returned in a conduit (41) adjacent the exterior of the impregnation vessel, and open at the top to digester pressure, and passes out the bottom of the digester. The impregnation vessel is welded to the bottom (35) of the digester, and the bottom of the digester is generally hemi-spherical, and substantially devoid of packings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37265089A | 1989-06-28 | 1989-06-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9001782D0 SE9001782D0 (en) | 1990-05-17 |
SE9001782L true SE9001782L (en) | 1990-12-29 |
SE506456C2 SE506456C2 (en) | 1997-12-15 |
Family
ID=23469091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9001782A SE506456C2 (en) | 1989-06-28 | 1990-05-17 | Apparatus and method for continuous production of pulp, wherein the impregnation vessel is arranged in the cooking pot |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0407371A3 (en) |
JP (1) | JPH0333287A (en) |
BR (1) | BR9003023A (en) |
DE (1) | DE407371T1 (en) |
FI (1) | FI903207A0 (en) |
NO (1) | NO902849L (en) |
SE (1) | SE506456C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5302247A (en) * | 1992-11-02 | 1994-04-12 | Kamyr, Inc. | Top circulation line cooling for a modified cook digester |
US5476572A (en) * | 1994-06-16 | 1995-12-19 | Kamyr, Inc. | Chip feeding for a continuous digester |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE525692A (en) * | 1952-05-14 | |||
NL136526C (en) * | 1959-11-20 | |||
GB1042381A (en) * | 1963-01-08 | 1966-09-14 | Defibrator Ab | Apparatus for use in the production of pulp from lignocellulose-containing material |
US5300195A (en) * | 1988-05-31 | 1994-04-05 | Kamyr Ab | Continuous vertical digester apparatus |
-
1990
- 1990-05-17 SE SE9001782A patent/SE506456C2/en unknown
- 1990-06-07 EP EP19900890180 patent/EP0407371A3/en not_active Withdrawn
- 1990-06-07 DE DE199090890180T patent/DE407371T1/en active Pending
- 1990-06-19 JP JP2161173A patent/JPH0333287A/en active Pending
- 1990-06-26 FI FI903207A patent/FI903207A0/en not_active IP Right Cessation
- 1990-06-27 NO NO90902849A patent/NO902849L/en unknown
- 1990-06-28 BR BR909003023A patent/BR9003023A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0407371A3 (en) | 1991-11-27 |
DE407371T1 (en) | 1991-10-17 |
BR9003023A (en) | 1991-08-20 |
SE9001782D0 (en) | 1990-05-17 |
FI903207A0 (en) | 1990-06-26 |
JPH0333287A (en) | 1991-02-13 |
NO902849L (en) | 1991-01-02 |
EP0407371A2 (en) | 1991-01-09 |
NO902849D0 (en) | 1990-06-27 |
SE506456C2 (en) | 1997-12-15 |
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