SE8306529D0 - PROCEDURE AND DEVICE FOR FIBERATION OF TREATED RECOVERY PAPER - Google Patents
PROCEDURE AND DEVICE FOR FIBERATION OF TREATED RECOVERY PAPERInfo
- Publication number
- SE8306529D0 SE8306529D0 SE8306529A SE8306529A SE8306529D0 SE 8306529 D0 SE8306529 D0 SE 8306529D0 SE 8306529 A SE8306529 A SE 8306529A SE 8306529 A SE8306529 A SE 8306529A SE 8306529 D0 SE8306529 D0 SE 8306529D0
- Authority
- SE
- Sweden
- Prior art keywords
- rotor
- inlet channel
- fiberation
- procedure
- disintegrated
- Prior art date
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>
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 true SE8306529D0 (en) | 1983-11-25 |
SE8306529L 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)
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 |
WO1999054026A1 (en) * | 1998-04-22 | 1999-10-28 | Irish & Associates | A flow directing device for a medium consistency pump |
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 A/S, Bjerringbro | 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 |
-
1982
- 1982-11-30 FI FI824113A patent/FI824113A0/en not_active Application Discontinuation
-
1983
- 1983-11-11 DE DE19833340858 patent/DE3340858A1/en not_active Withdrawn
- 1983-11-25 SE SE8306529A patent/SE8306529L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE3340858A1 (en) | 1984-05-30 |
FI824113A0 (en) | 1982-11-30 |
SE8306529L (en) | 1984-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8306529-2 Effective date: 19850809 |