SE9304177D0 - A screening device - Google Patents
A screening deviceInfo
- Publication number
- SE9304177D0 SE9304177D0 SE9304177A SE9304177A SE9304177D0 SE 9304177 D0 SE9304177 D0 SE 9304177D0 SE 9304177 A SE9304177 A SE 9304177A SE 9304177 A SE9304177 A SE 9304177A SE 9304177 D0 SE9304177 D0 SE 9304177D0
- Authority
- SE
- Sweden
- Prior art keywords
- rod
- chip bed
- profiles
- screen device
- facing towards
- 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
- D21C7/08—Discharge devices
Landscapes
- Paper (AREA)
Abstract
The present invention relates to a screen device when displacing liquid through a chip bed, preferably in conjunction with the withdrawal of cooking liquid in a continuous digester for producing chemical pulp. The said screen device (5) preferably has a rectangular shape and is constructed from a multiplicity of rod profiles (6) which are fixed, parallel to each other, at a number of crossbars (7). The said rod profiles (6) are arranged with their longitudinal extent horizontal, and these rod profiles (6) together exhibit a wash-board-like surface facing towards the chip bed. This surface is produced by the surface of each rod profile (6) facing towards the chip bed being bevelled at a given angle, which can be optimized, so that a widening in the cross-sectional area of the digester occurs prior to each new rod, seen from above and downwards.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9304177A SE9304177L (en) | 1993-12-16 | 1993-12-16 | A screening device |
| AU12855/95A AU1285595A (en) | 1993-12-16 | 1994-11-08 | Screen device |
| PCT/SE1994/001045 WO1995016817A1 (en) | 1993-12-16 | 1994-11-08 | Screen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9304177A SE9304177L (en) | 1993-12-16 | 1993-12-16 | A screening device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE9304177D0 true SE9304177D0 (en) | 1993-12-16 |
| SE501243C2 SE501243C2 (en) | 1994-12-19 |
| SE9304177L SE9304177L (en) | 1994-12-19 |
Family
ID=20392116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9304177A SE9304177L (en) | 1993-12-16 | 1993-12-16 | A screening device |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU1285595A (en) |
| SE (1) | SE9304177L (en) |
| WO (1) | WO1995016817A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE500959C2 (en) * | 1993-02-16 | 1994-10-10 | Kvaerner Pulping Tech | Strainer in a continuous digester |
| FI97979B (en) * | 1995-02-23 | 1996-12-13 | Ahlstrom Machinery Oy | Strainer |
| US6165323A (en) * | 1999-02-10 | 2000-12-26 | Andritz-Ahlstrom Inc. | Screen plate having a plurality of inclined slots in a digester |
| SE531717C2 (en) | 2007-11-30 | 2009-07-21 | Metso Fiber Karlstad Ab | Kokarsil for a continuous cellulose pulp cooker |
| CA2860758C (en) | 2012-01-12 | 2019-04-02 | Valmet Ab | Profile bar screen for digester vessels |
| SE538326C2 (en) | 2014-09-01 | 2016-05-17 | Valmet Oy | Profile bar screen for digester vessels |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2998064A (en) * | 1957-12-11 | 1961-08-29 | Improved Machinery Inc | Strainer construction |
| DE1223343B (en) * | 1967-05-15 | 1966-08-25 | Improved Machinery Inc | Cylindrical edge filter |
| SE354088B (en) * | 1970-09-24 | 1973-02-26 | Kamyr Ab |
-
1993
- 1993-12-16 SE SE9304177A patent/SE9304177L/en not_active IP Right Cessation
-
1994
- 1994-11-08 AU AU12855/95A patent/AU1285595A/en not_active Abandoned
- 1994-11-08 WO PCT/SE1994/001045 patent/WO1995016817A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| SE501243C2 (en) | 1994-12-19 |
| WO1995016817A1 (en) | 1995-06-22 |
| SE9304177L (en) | 1994-12-19 |
| AU1285595A (en) | 1995-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |