SE9701687L - Apparatus for feeding and milling lignocellulosic fibrous material - Google Patents

Apparatus for feeding and milling lignocellulosic fibrous material

Info

Publication number
SE9701687L
SE9701687L SE9701687A SE9701687A SE9701687L SE 9701687 L SE9701687 L SE 9701687L SE 9701687 A SE9701687 A SE 9701687A SE 9701687 A SE9701687 A SE 9701687A SE 9701687 L SE9701687 L SE 9701687L
Authority
SE
Sweden
Prior art keywords
screw
feeding
stem
refiner
milling
Prior art date
Application number
SE9701687A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE511370C2 (en
SE9701687D0 (en
Inventor
Inge Larsson
Carl-Johan Soederberg
Goeran Lundgren
Oerjan Ahlgren
Original Assignee
Sunds Defibrator Ind Ab
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 Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab
Priority to SE9701687A priority Critical patent/SE511370C2/en
Publication of SE9701687D0 publication Critical patent/SE9701687D0/en
Priority to PCT/SE1998/000813 priority patent/WO1998050623A1/en
Publication of SE9701687L publication Critical patent/SE9701687L/en
Publication of SE511370C2 publication Critical patent/SE511370C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Disintegrating Or Milling (AREA)
  • Paper (AREA)
  • Crushing And Grinding (AREA)

Abstract

An apparatus for feeding and refining lignocellulosic fibre material in a pulp manufacturing process includes a chip preheater (10) which is connected to the inlet of a screw feeder (11), and a refiner (16) which is connected to the outlet of said screw feeder. The screw feeder (11) includes a screw (12) whose rotational speed can be varied and which has a stem (15). The stem (15) extends right up to the refiner (16) and there widens conically in the feed direction. The refiner inlet (19) is formed by a compression zone (14) between the screw housing (13) and the screw stem (15).
SE9701687A 1997-05-05 1997-05-05 Apparatus for feeding and milling lignocellulosic fibrous material SE511370C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9701687A SE511370C2 (en) 1997-05-05 1997-05-05 Apparatus for feeding and milling lignocellulosic fibrous material
PCT/SE1998/000813 WO1998050623A1 (en) 1997-05-05 1998-05-04 Apparatus for feeding and refining lignocellulosic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9701687A SE511370C2 (en) 1997-05-05 1997-05-05 Apparatus for feeding and milling lignocellulosic fibrous material

Publications (3)

Publication Number Publication Date
SE9701687D0 SE9701687D0 (en) 1997-05-05
SE9701687L true SE9701687L (en) 1998-11-06
SE511370C2 SE511370C2 (en) 1999-09-20

Family

ID=20406841

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9701687A SE511370C2 (en) 1997-05-05 1997-05-05 Apparatus for feeding and milling lignocellulosic fibrous material

Country Status (2)

Country Link
SE (1) SE511370C2 (en)
WO (1) WO1998050623A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000052256A1 (en) * 1999-03-02 2000-09-08 Andritz Inc. Feed preconditioning for chemical pulping
FI121816B (en) 2009-01-08 2011-04-29 Upm Kymmene Corp Refiner and pulp refining process
FI122889B (en) * 2010-12-31 2012-08-31 Upm Kymmene Corp Method and apparatus for preparing nanocellulose
CN105887543A (en) * 2014-11-12 2016-08-24 吴解生 Eccentric-fed high-concentration pulping machine with metering and compressing feeding device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877365A (en) * 1973-07-09 1975-04-15 Krima Maskinfabrik Ab Adjustable pressure worm press

Also Published As

Publication number Publication date
SE511370C2 (en) 1999-09-20
SE9701687D0 (en) 1997-05-05
WO1998050623A1 (en) 1998-11-12

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Legal Events

Date Code Title Description
NUG Patent has lapsed