SE8306529L - PROCEDURE AND DEVICE FOR FIBERATION OF TREATED RECOVERY PAPER - Google Patents

PROCEDURE AND DEVICE FOR FIBERATION OF TREATED RECOVERY PAPER

Info

Publication number
SE8306529L
SE8306529L SE8306529A SE8306529A SE8306529L SE 8306529 L SE8306529 L SE 8306529L SE 8306529 A SE8306529 A SE 8306529A SE 8306529 A SE8306529 A SE 8306529A SE 8306529 L SE8306529 L SE 8306529L
Authority
SE
Sweden
Prior art keywords
rotor
inlet channel
fiberation
procedure
disintegrated
Prior art date
Application number
SE8306529A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8306529D0 (en
Inventor
K O Henricson
Original Assignee
Ahlstroem 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 Ahlstroem Oy filed Critical Ahlstroem Oy
Publication of SE8306529D0 publication Critical patent/SE8306529D0/en
Publication of SE8306529L publication Critical patent/SE8306529L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • 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
    • 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
    • D21B1/32—Defibrating by other means of waste paper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

In a process for defibrating waste paper, the paper shreds and fibre bundles are disintegrated in the inlet channel of a centrifugal pump upstream of the rotor by being subjected to mechanical forces and/or strong turbulence by means of a defibration rotor arranged in the inlet channel, and the stock suspension thus disintegrated is caused to enter into the rotor. The device provided for carrying out the process comprises a defibration rotor which is fitted with projections and is arranged in the inlet channel, fitted with projections, of the centrifugal pump, the channel preferably widening towards the rotor. The space between the inlet channel and the rotor and hence the strength of the turbulence can be adjusted by altering the position of the rotor in the inlet channel. <IMAGE>
SE8306529A 1982-11-30 1983-11-25 PROCEDURE AND DEVICE FOR FIBERATION OF TREATED RECOVERY PAPER SE8306529L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI824113A FI824113A0 (en) 1982-11-30 1982-11-30 FOERFARANDE OCH ANORDNING FOER FIBRERING AV FOERBEHANDLAT AVFALLSPAPPER

Publications (2)

Publication Number Publication Date
SE8306529D0 SE8306529D0 (en) 1983-11-25
SE8306529L true SE8306529L (en) 1984-05-31

Family

ID=8516381

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8306529A SE8306529L (en) 1982-11-30 1983-11-25 PROCEDURE AND DEVICE FOR FIBERATION OF TREATED RECOVERY PAPER

Country Status (3)

Country Link
DE (1) DE3340858A1 (en)
FI (1) FI824113A0 (en)
SE (1) SE8306529L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI67580C (en) * 1983-07-12 1985-04-10 Ahlstroem Oy FOERFARANDE OCH ANORDNING FOER FIBRERING SILNING OCH PUMPNING AV CELLULOSAMASSA OCH RETURPAPPER
BR9909782A (en) * 1998-04-22 2000-12-19 Irish & Associates Flow targeting device, pumping system and efficient flow method of medium to high consistency material slurry
US6210105B1 (en) 1998-11-27 2001-04-03 Irish & Asssociates Flow directing device for a medium consistency pump
DE20115516U1 (en) 2001-09-20 2001-11-29 Grundfos As Centrifugal pump
DE102004010857A1 (en) * 2004-03-05 2005-11-03 Voith Paper Patent Gmbh Device for pumping and de-stubbing a pulp stock containing pollutant
DE102008057849A1 (en) * 2008-11-18 2010-05-20 Wilo Se Cutting device for e.g. sewage pump, has cutting body coaxially surrounded by fixed cutting ring, where annular gap between cutting body and ring decreases in its width from inlet aperture to rotor in opening region close to pump inlet
DE102014004420A1 (en) 2014-03-27 2015-10-01 Wilo Se Centrifugal pump with cutting device

Also Published As

Publication number Publication date
DE3340858A1 (en) 1984-05-30
FI824113A0 (en) 1982-11-30
SE8306529D0 (en) 1983-11-25

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Legal Events

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NAV Patent application has lapsed

Ref document number: 8306529-2

Effective date: 19850809