FI20040730A - strainer body - Google Patents
strainer body Download PDFInfo
- Publication number
- FI20040730A FI20040730A FI20040730A FI20040730A FI20040730A FI 20040730 A FI20040730 A FI 20040730A FI 20040730 A FI20040730 A FI 20040730A FI 20040730 A FI20040730 A FI 20040730A FI 20040730 A FI20040730 A FI 20040730A
- Authority
- FI
- Finland
- Prior art keywords
- digester
- screen element
- liquid stream
- screen
- strainer body
- 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
Landscapes
- Paper (AREA)
- Centrifugal Separators (AREA)
Abstract
A central screen element being located substantially parallel with the vertical axis of a pulp digester is provided. In the vertical direction, the screen element comprises at least one zone including one screen segment for removing a liquid stream from the digester and at least one outlet for introducing a liquid stream to the digester. The zones may be adjacent or separated and liquid streams may be independently removed and introduced, as required by the properties and the stage of the cooking process. A screen element may be used in both continuous and batch digesters.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20040730A FI117477B (en) | 2004-05-28 | 2004-05-28 | strainer body |
CA2537087A CA2537087C (en) | 2004-05-28 | 2005-05-25 | Screen device for a digester for producing pulp |
PCT/FI2005/050174 WO2005116328A1 (en) | 2004-05-28 | 2005-05-25 | Screen device for a digester for producing pulp |
US10/569,093 US20080169071A1 (en) | 2004-05-28 | 2005-05-25 | Screen Device For a Digester For Producing Pulp |
EP05744411A EP1769118B1 (en) | 2004-05-28 | 2005-05-25 | Screen device for a digester for producing pulp |
AT05744411T ATE553247T1 (en) | 2004-05-28 | 2005-05-25 | SCREENING DEVICE FOR PULP COOKERS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20040730 | 2004-05-28 | ||
FI20040730A FI117477B (en) | 2004-05-28 | 2004-05-28 | strainer body |
Publications (3)
Publication Number | Publication Date |
---|---|
FI20040730A0 FI20040730A0 (en) | 2004-05-28 |
FI20040730A true FI20040730A (en) | 2005-11-29 |
FI117477B FI117477B (en) | 2006-10-31 |
Family
ID=32338431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20040730A FI117477B (en) | 2004-05-28 | 2004-05-28 | strainer body |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080169071A1 (en) |
EP (1) | EP1769118B1 (en) |
AT (1) | ATE553247T1 (en) |
CA (1) | CA2537087C (en) |
FI (1) | FI117477B (en) |
WO (1) | WO2005116328A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2638196C (en) * | 2007-08-07 | 2015-12-15 | Andritz Inc. | Method and system for semi-chemical pulping |
WO2012102650A1 (en) * | 2011-01-25 | 2012-08-02 | Metso Paper Sweden Ab | Continuous digester with a bottom scraper equipped with draining apertures |
SE539706C2 (en) * | 2014-11-07 | 2017-11-07 | Valmet Oy | Method for recovering hydrolysate |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1231247A (en) * | 1913-08-14 | 1917-06-26 | Walter K Freeman | Apparatus for harvesting the constituents of wood and vegetable substances, distilling and purifying them. |
DE517951C (en) * | 1929-05-14 | 1931-07-30 | Einar Morterud | Device for the forced circulation of the lye in the cellulose digester |
US3215591A (en) * | 1963-04-22 | 1965-11-02 | Lummus Co | Pressure impregnation apparatus for impregnating wood chips and the like |
SE225814C1 (en) * | 1965-03-25 | 1969-03-25 | ||
US3475271A (en) * | 1966-02-07 | 1969-10-28 | Kamyr Ab | Cellulose digester with washing apparatus |
SE500455C2 (en) * | 1992-11-18 | 1994-06-27 | Kamyr Ab | Method of continuous cooking under elevated pressure and temperature of fiber material in a vertical digester |
US6123808A (en) * | 1997-12-09 | 2000-09-26 | Ahlstrom Machinery Inc. | Distribution of dilution liquor to the discharge of a cellulose pulp digester |
US6120647A (en) * | 1998-01-26 | 2000-09-19 | Ahlstrom Machinery Inc. | Simplified liquid removal system for a cellulose pulp digester |
-
2004
- 2004-05-28 FI FI20040730A patent/FI117477B/en not_active IP Right Cessation
-
2005
- 2005-05-25 WO PCT/FI2005/050174 patent/WO2005116328A1/en not_active Application Discontinuation
- 2005-05-25 EP EP05744411A patent/EP1769118B1/en not_active Not-in-force
- 2005-05-25 US US10/569,093 patent/US20080169071A1/en not_active Abandoned
- 2005-05-25 CA CA2537087A patent/CA2537087C/en not_active Expired - Fee Related
- 2005-05-25 AT AT05744411T patent/ATE553247T1/en active
Also Published As
Publication number | Publication date |
---|---|
US20080169071A1 (en) | 2008-07-17 |
CA2537087A1 (en) | 2005-12-08 |
FI117477B (en) | 2006-10-31 |
FI20040730A0 (en) | 2004-05-28 |
ATE553247T1 (en) | 2012-04-15 |
CA2537087C (en) | 2013-01-08 |
WO2005116328A1 (en) | 2005-12-08 |
EP1769118A1 (en) | 2007-04-04 |
EP1769118B1 (en) | 2012-04-11 |
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