NL7712833A - Rotor with vane cutting edges clad with sharp carbide granules - esp. for grinding and opening waste paper to form fibrous slurry for mfg. paper or board - Google Patents

Rotor with vane cutting edges clad with sharp carbide granules - esp. for grinding and opening waste paper to form fibrous slurry for mfg. paper or board

Info

Publication number
NL7712833A
NL7712833A NL7712833A NL7712833A NL7712833A NL 7712833 A NL7712833 A NL 7712833A NL 7712833 A NL7712833 A NL 7712833A NL 7712833 A NL7712833 A NL 7712833A NL 7712833 A NL7712833 A NL 7712833A
Authority
NL
Netherlands
Prior art keywords
rotor
paper
grinding
clad
fibrous slurry
Prior art date
Application number
NL7712833A
Other languages
Dutch (nl)
Original Assignee
Eximco Naamloze Vennootschap
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 Eximco Naamloze Vennootschap filed Critical Eximco Naamloze Vennootschap
Publication of NL7712833A publication Critical patent/NL7712833A/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
    • D21B1/04—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
    • D21B1/30—Defibrating by other means
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers
    • D21B1/347—Rotor assemblies

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

A rotor is a vessel for the prepn. of a fibrous slurry for paper or board making, is used for opening, grinding and maintaining in motion the charge of fibrous material such as waste-paper, carbodard, wood grinding and chemicals. At least the working edges of the rotor are clad with a hard granular material having sharp cutting points. The tranular material is a carbide and the granules are bonded to the vanes of the rotor by an alloyed substance. Alternatively the carbide granules may be melted on to the vanes by a plasma flame or they may be held by a synthetic resin. The rotor is highly resistant to wear and yields a homogneous, fibrous slurry, much more quickly and effectively. Energy is thus saved and with continuous working throughput is greatly increased.
NL7712833A 1977-11-03 1977-11-22 Rotor with vane cutting edges clad with sharp carbide granules - esp. for grinding and opening waste paper to form fibrous slurry for mfg. paper or board NL7712833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2056392A BE860386A (en) 1977-11-03 1977-11-03 ROTOR FOR A DEVICE FOR THE PREPARATION OF FIBER PURGE FOR OBTAINING PAPER OR CARDBOARD

Publications (1)

Publication Number Publication Date
NL7712833A true NL7712833A (en) 1979-05-07

Family

ID=3865398

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7712833A NL7712833A (en) 1977-11-03 1977-11-22 Rotor with vane cutting edges clad with sharp carbide granules - esp. for grinding and opening waste paper to form fibrous slurry for mfg. paper or board

Country Status (2)

Country Link
BE (1) BE860386A (en)
NL (1) NL7712833A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0328500A2 (en) * 1988-02-10 1989-08-16 Sunds Defibrator Jylhä Oy Device to disintegrate paper, cardboard and the like

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO314396A0 (en) * 1996-10-22 1996-11-14 Wood, Jeffrey Robert Pulping apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0328500A2 (en) * 1988-02-10 1989-08-16 Sunds Defibrator Jylhä Oy Device to disintegrate paper, cardboard and the like
EP0328500A3 (en) * 1988-02-10 1991-06-05 Sunds Defibrator Jylhä Oy Device to disintegrate paper, cardboard and the like

Also Published As

Publication number Publication date
BE860386A (en) 1978-03-01

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed