EP0081380A2 - Verfahren und Vorrichtung zur Mahlen von Pulpholz und Holzspanen durch Fliehkraft - Google Patents

Verfahren und Vorrichtung zur Mahlen von Pulpholz und Holzspanen durch Fliehkraft Download PDF

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Publication number
EP0081380A2
EP0081380A2 EP82306519A EP82306519A EP0081380A2 EP 0081380 A2 EP0081380 A2 EP 0081380A2 EP 82306519 A EP82306519 A EP 82306519A EP 82306519 A EP82306519 A EP 82306519A EP 0081380 A2 EP0081380 A2 EP 0081380A2
Authority
EP
European Patent Office
Prior art keywords
rotor
grinding surface
water
grinding
pathway
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.)
Granted
Application number
EP82306519A
Other languages
English (en)
French (fr)
Other versions
EP0081380B1 (de
EP0081380A3 (en
Inventor
John A. Wildey
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.)
Amca International Ltd
Original Assignee
Amca International Ltd
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
Priority claimed from US06/383,713 external-priority patent/US4474335A/en
Application filed by Amca International Ltd filed Critical Amca International Ltd
Publication of EP0081380A2 publication Critical patent/EP0081380A2/de
Publication of EP0081380A3 publication Critical patent/EP0081380A3/en
Application granted granted Critical
Publication of EP0081380B1 publication Critical patent/EP0081380B1/de
Expired legal-status Critical Current

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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
    • D21B1/04—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
    • D21B1/24—Disintegrating in mills in magazine-type machines of the pocket type

Definitions

  • this invention provides a method of grinding, utilizing an internal grinding surface in the shape of a surface of revolution.
  • the method includes rotating material around the internal grinding surface to generate centrifugal grinding force between the material and surface, while at the same time applying water to the grinding surface through orifices also rotated around the surface in proximity thereto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Paper (AREA)
  • Crushing And Grinding (AREA)
EP82306519A 1981-12-07 1982-12-07 Verfahren und Vorrichtung zur Mahlen von Pulpholz und Holzspanen durch Fliehkraft Expired EP0081380B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8136864 1981-12-07
GB8136864 1981-12-07
US383713 1982-06-01
US06/383,713 US4474335A (en) 1981-12-07 1982-06-01 Apparatus for centrifugal pulpwood and wood chip grinding

Publications (3)

Publication Number Publication Date
EP0081380A2 true EP0081380A2 (de) 1983-06-15
EP0081380A3 EP0081380A3 (en) 1984-10-03
EP0081380B1 EP0081380B1 (de) 1987-03-04

Family

ID=26281479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82306519A Expired EP0081380B1 (de) 1981-12-07 1982-12-07 Verfahren und Vorrichtung zur Mahlen von Pulpholz und Holzspanen durch Fliehkraft

Country Status (4)

Country Link
EP (1) EP0081380B1 (de)
DE (1) DE3275568D1 (de)
FI (1) FI69138C (de)
NO (1) NO157829C (de)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT118812B (de) * 1928-10-29 1930-08-25 Andreas Biffar Verfahren und Vorrichtung zum Schleifen von Holz.

Also Published As

Publication number Publication date
DE3275568D1 (en) 1987-04-09
FI824157L (fi) 1983-06-08
FI69138B (fi) 1985-08-30
NO157829B (no) 1988-02-15
FI824157A0 (fi) 1982-12-02
FI69138C (fi) 1985-12-10
NO824045L (no) 1983-06-08
NO157829C (no) 1988-06-08
EP0081380B1 (de) 1987-03-04
EP0081380A3 (en) 1984-10-03

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