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 same

Info

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
Application number
SE0202032A
Other languages
Swedish (sv)
Inventor
Boerje Svensson
Lars-Aake Hammar
Original Assignee
Skogsind Tekn Foskningsinst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skogsind Tekn Foskningsinst filed Critical Skogsind Tekn Foskningsinst
Priority to SE0202032A priority Critical patent/SE0202032D0/en
Publication of SE0202032D0 publication Critical patent/SE0202032D0/en
Priority to CA002491533A priority patent/CA2491533A1/en
Priority to EP03761888A priority patent/EP1540073A1/en
Priority to PCT/SE2003/001146 priority patent/WO2004003288A1/en
Priority to AU2003243114A priority patent/AU2003243114A1/en

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  • 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.
SE0202032A 2002-07-01 2002-07-01 Method for manufacturing mechanical or chemical-mechanical pulp and a device for manufacturing the same SE0202032D0 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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