SE9700304D0 - Refining elements - Google Patents
Refining elementsInfo
- Publication number
- SE9700304D0 SE9700304D0 SE9700304A SE9700304A SE9700304D0 SE 9700304 D0 SE9700304 D0 SE 9700304D0 SE 9700304 A SE9700304 A SE 9700304A SE 9700304 A SE9700304 A SE 9700304A SE 9700304 D0 SE9700304 D0 SE 9700304D0
- Authority
- SE
- Sweden
- Prior art keywords
- bars
- grooves
- refining element
- refining
- fiber material
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/12—Shape or construction of discs
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/30—Disc mills
- D21D1/306—Discs
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Paper (AREA)
- Crushing And Grinding (AREA)
Abstract
A refining element for disintegrating and refining fiber material in a disc refiner. The refining element is formed with a base surface (1, 11), on which a pattern of bars (2, 12) is arranged. The bars (2, 12) extend over the surface of the refining element and are separated by intermediate grooves (6, 13), and flow restrictions (14) can be located in the grooves (6, 13) between the bars (2, 12). Channels (7, 15) are arranged at the same level as the base surface (1, 11) of the refining element for a free passage of steam outward and inward without obstruction by bars (2, 12) of the refining element, or fiber material in the grooves (6, 13) or flow restrictions (14) in the grooves (6, 13). The upper edges of the bars can thereby remain unbroken.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9700304A SE508286C2 (en) | 1997-01-31 | 1997-01-31 | Grinding elements for disc refiners with booms and intermediate tracks and channels for free passage of steam |
AU58886/98A AU5888698A (en) | 1997-01-31 | 1998-01-27 | Refining element |
PCT/SE1998/000109 WO1998033594A1 (en) | 1997-01-31 | 1998-01-27 | Refining element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9700304A SE508286C2 (en) | 1997-01-31 | 1997-01-31 | Grinding elements for disc refiners with booms and intermediate tracks and channels for free passage of steam |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9700304D0 true SE9700304D0 (en) | 1997-01-31 |
SE9700304L SE9700304L (en) | 1998-08-01 |
SE508286C2 SE508286C2 (en) | 1998-09-21 |
Family
ID=20405593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9700304A SE508286C2 (en) | 1997-01-31 | 1997-01-31 | Grinding elements for disc refiners with booms and intermediate tracks and channels for free passage of steam |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU5888698A (en) |
SE (1) | SE508286C2 (en) |
WO (1) | WO1998033594A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8028945B2 (en) * | 2007-05-31 | 2011-10-04 | Andritz Inc. | Refiner plates having steam channels and method for extracting backflow steam from a disk refiner |
SE541111C2 (en) * | 2017-06-19 | 2019-04-09 | Valmet Oy | Steam evacuation in a pulp or fiber refiner |
SE540890C2 (en) | 2017-09-01 | 2018-12-11 | Valmet Oy | Refiner segment in a fiber refiner |
US10589279B2 (en) | 2017-12-15 | 2020-03-17 | Andritz Inc. | Water relief groove to prevent cavitation of opposite refiner plate |
CA3114202A1 (en) * | 2018-10-11 | 2020-04-16 | Andritz Inc. | Refiner plate having inter-bar wear protrusions |
SE545094C2 (en) * | 2021-03-24 | 2023-03-28 | Valmet Oy | Refiner segment |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI53469C (en) * | 1976-07-02 | 1978-05-10 | Enso Gutzeit Oy | MALSKIVA |
FI73256C (en) * | 1984-10-19 | 1987-09-10 | Yhtyneet Paperitehtaat Oy | Target segments. |
SE456223B (en) * | 1987-02-25 | 1988-09-19 | Sunds Defibrator | DISC REFINOR PAINTING ELEMENT |
-
1997
- 1997-01-31 SE SE9700304A patent/SE508286C2/en not_active IP Right Cessation
-
1998
- 1998-01-27 WO PCT/SE1998/000109 patent/WO1998033594A1/en active Application Filing
- 1998-01-27 AU AU58886/98A patent/AU5888698A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU5888698A (en) | 1998-08-25 |
WO1998033594A1 (en) | 1998-08-06 |
SE508286C2 (en) | 1998-09-21 |
SE9700304L (en) | 1998-08-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |