SE0202032D0 - Method for manufacturing mechanical or chemical-mechanical pulp and a device for manufacturing the same - Google Patents
Method for manufacturing mechanical or chemical-mechanical pulp and a device for manufacturing the sameInfo
- Publication number
- SE0202032D0 SE0202032D0 SE0202032A SE0202032A SE0202032D0 SE 0202032 D0 SE0202032 D0 SE 0202032D0 SE 0202032 A SE0202032 A SE 0202032A SE 0202032 A SE0202032 A SE 0202032A SE 0202032 D0 SE0202032 D0 SE 0202032D0
- Authority
- SE
- Sweden
- Prior art keywords
- reject
- defibrated
- mechanical
- manufacturing
- pulp
- Prior art date
Links
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The present invention relates to a method for manufacturing mechanical or chemi-mechanical pulp by disintegrating and treating wood material. The wood material is defibrated in a first step with a low energy input compared to conventional processes. Then the reject is screened from the defibrated wood material. The reject is then refined separately and mixed again with the rest defibrated material to a final pulp product. The invention also relates to an apparatus for manufacturing mechanical or chemi-mechanical pulp by disintegrating and treating wood based material. The apparatus comprises a defibration device (1) with a low energy input, a screening device (2) separating reject from the main part of the defibrated wood material, a reject refining device (4) and a device for (6) mixing the refined reject with the rest of the wood based material.One object of the invention is to carry out the disintegration and the refining of the pulp in such a manner, that the total energy consumption is substantially reduced relative to common practice.It is a further object of the invention to provide a method and apparatus by which it is easy to control through choice of energy inputs the characteristics of the end product by controlling the properties of the defibrated wood material through the process.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0202032A SE0202032D0 (en) | 2002-07-01 | 2002-07-01 | Method for manufacturing mechanical or chemical-mechanical pulp and a device for manufacturing the same |
CA002491533A CA2491533A1 (en) | 2002-07-01 | 2003-07-01 | Method of manufacturing mechanical or chemi-mechanical pulp and an apparatus for manufacturing the same |
EP03761888A EP1540073A1 (en) | 2002-07-01 | 2003-07-01 | Method of manufacturing mechanical or chemi-mechanical pulp and an apparatus for manufacturing the same |
PCT/SE2003/001146 WO2004003288A1 (en) | 2002-07-01 | 2003-07-01 | Method of manufacturing mechanical or chemi-mechanical pulp and an apparatus for manufacturing the same |
AU2003243114A AU2003243114A1 (en) | 2002-07-01 | 2003-07-01 | Method of manufacturing mechanical or chemi-mechanical pulp and an apparatus for manufacturing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0202032A SE0202032D0 (en) | 2002-07-01 | 2002-07-01 | Method for manufacturing mechanical or chemical-mechanical pulp and a device for manufacturing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
SE0202032D0 true SE0202032D0 (en) | 2002-07-01 |
Family
ID=20288382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0202032A SE0202032D0 (en) | 2002-07-01 | 2002-07-01 | Method for manufacturing mechanical or chemical-mechanical pulp and a device for manufacturing the same |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1540073A1 (en) |
AU (1) | AU2003243114A1 (en) |
CA (1) | CA2491533A1 (en) |
SE (1) | SE0202032D0 (en) |
WO (1) | WO2004003288A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI121311B (en) * | 2005-05-03 | 2010-09-30 | M Real Oyj | A process for the preparation of a mechanical pulp for use in the manufacture of paper and board |
DE102007036379A1 (en) * | 2007-07-31 | 2009-02-05 | Voith Patent Gmbh | Process for producing fines from pulp reject |
CA2824076A1 (en) | 2012-08-21 | 2014-02-21 | University Of New Brunswick | System and method for reclaiming rejects in sulfite pulping |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE459924B (en) * | 1988-01-22 | 1989-08-21 | Sunds Defibrator | SET FOR MANUFACTURE OF MECHANICAL MASS |
SE513140C2 (en) * | 1998-11-19 | 2000-07-10 | Valmet Fibertech Ab | Procedure for producing upgraded newsprint pulp to SC / LWC quality |
-
2002
- 2002-07-01 SE SE0202032A patent/SE0202032D0/en unknown
-
2003
- 2003-07-01 CA CA002491533A patent/CA2491533A1/en not_active Abandoned
- 2003-07-01 AU AU2003243114A patent/AU2003243114A1/en not_active Abandoned
- 2003-07-01 WO PCT/SE2003/001146 patent/WO2004003288A1/en not_active Application Discontinuation
- 2003-07-01 EP EP03761888A patent/EP1540073A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
AU2003243114A1 (en) | 2004-01-19 |
EP1540073A1 (en) | 2005-06-15 |
WO2004003288A1 (en) | 2004-01-08 |
CA2491533A1 (en) | 2004-01-08 |
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