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WO2009136849A9 - Coaxial feeder with threads having a top - Google Patents

Coaxial feeder with threads having a top Download PDF

Info

Publication number
WO2009136849A9
WO2009136849A9 PCT/SE2009/050476 SE2009050476W WO2009136849A9 WO 2009136849 A9 WO2009136849 A9 WO 2009136849A9 SE 2009050476 W SE2009050476 W SE 2009050476W WO 2009136849 A9 WO2009136849 A9 WO 2009136849A9
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
coaxial feeder
intended
threads
openings
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/SE2009/050476
Other languages
French (fr)
Other versions
WO2009136849A1 (en
Inventor
Hans-Olof Backlund
Göran BYSTRÖM
Johan FÄLLMAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
Original Assignee
Metso Paper Oy
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 Metso Paper Oy filed Critical Metso Paper Oy
Publication of WO2009136849A1 publication Critical patent/WO2009136849A1/en
Publication of WO2009136849A9 publication Critical patent/WO2009136849A9/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
    • B02C7/06—Crushing or disintegrating by disc mills with coaxial discs with horizontal axis
    • 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
    • B02C7/16—Driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C11/00—Other auxiliary devices or accessories specially adapted for grain mills
    • B02C11/04—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02—Feeding devices
    • 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
    • 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
    • D21B1/14—Disintegrating in mills
    • D21B1/18—Disintegrating in mills in magazine-type machines
    • D21B1/22—Disintegrating in mills in magazine-type machines with screw feed

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention relates to a refiner for refining of material such as wood chips or the like, which comprises: a first and a second opposed and with respect to each other rotatable rotors (11, 12), which are provided with refining elements (15, 16) and which between themselves define a refiner gap with a refining zone (17) for processing of the material, wherein the first rotor (11) comprises openings (19) having an inlet side and an outlet side (19a, 19b) intended to let the material through, and wherein the outlet side is adjacent to the feeding zone (18) of the refiner gap; a feeding chamber (22) to which the material is arranged to be fed, and which is adjacent to the inlet side of the openings (19) of the rotor; a coaxial feeder (23) having a screw body (24) and helix shaped threads (25), which coaxial feeder (23) is arranged inside the feeding chamber (22) in order to rotate together with the first rotor (11) and to carry the material towards the openings (19) of the rotor. The threads (25) of the coaxial feeder (23) comprise an essentially straight part (25a) that extends essentially perpendicular from the screw body (24) and that in operation is intended to carry the material in the longitudinal direction towards the refiner gap, wherein the straight part (25a) passes into a top (25b) that is intended to limit the motion of the material radially.
PCT/SE2009/050476 2008-05-08 2009-04-30 Coaxial feeder with threads having a top Ceased WO2009136849A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0801030-8 2008-05-08
SE0801030A SE532411C2 (en) 2008-05-08 2008-05-08 Refiner coaxial feeder

Publications (2)

Publication Number Publication Date
WO2009136849A1 WO2009136849A1 (en) 2009-11-12
WO2009136849A9 true WO2009136849A9 (en) 2010-03-25

Family

ID=41264777

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2009/050476 Ceased WO2009136849A1 (en) 2008-05-08 2009-04-30 Coaxial feeder with threads having a top

Country Status (2)

Country Link
SE (1) SE532411C2 (en)
WO (1) WO2009136849A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE535778C2 (en) * 2011-07-01 2012-12-18 Metso Paper Sweden Ab Feeder screw, feeder screw device and mill for lignocellulosic material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843065A (en) * 1972-10-13 1974-10-22 Bauer Bros Co Labyrinth seal ring for pulp refiner
US3889890A (en) * 1974-01-21 1975-06-17 Bauer Bros Co Refiner disc
US4191338A (en) * 1977-06-03 1980-03-04 The Bauer Bros. Co. Infeed disc for disc-type refiners
DE3712042C2 (en) * 1987-04-09 1995-01-05 Schnell Maschfab Karl Feeding device on a shredding machine, in particular for bones, meat and. the like
SE516965C2 (en) * 1997-02-25 2002-03-26 Valmet Fibertech Ab Methods for mechanical processing of lignocellulosic fibrous material in a grinder and feed device for such grinder

Also Published As

Publication number Publication date
SE532411C2 (en) 2010-01-12
WO2009136849A1 (en) 2009-11-12
SE0801030L (en) 2009-11-09

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