CA2042366A1 - Method and Device for the Production of Cellulose Pulp of Improved Quality - Google Patents

Method and Device for the Production of Cellulose Pulp of Improved Quality

Info

Publication number
CA2042366A1
CA2042366A1 CA2042366A CA2042366A CA2042366A1 CA 2042366 A1 CA2042366 A1 CA 2042366A1 CA 2042366 A CA2042366 A CA 2042366A CA 2042366 A CA2042366 A CA 2042366A CA 2042366 A1 CA2042366 A1 CA 2042366A1
Authority
CA
Canada
Prior art keywords
cleaning
consistency
pulp
hydrocyclone unit
production
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
CA2042366A
Other languages
French (fr)
Other versions
CA2042366C (en
Inventor
Nils Anders Lennart Wikdahl
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8203268&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2042366(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2042366A1 publication Critical patent/CA2042366A1/en
Application granted granted Critical
Publication of CA2042366C publication Critical patent/CA2042366C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
    • D21D5/24—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force in cyclones
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Silicon Compounds (AREA)
  • Materials For Medical Uses (AREA)
  • Magnetic Record Carriers (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

In a process and a device, a cellulose suspension of thin consistency, the consistency and flow rate of which is known, is conducted to the suction side of a main pump (4), to the pressure side of which there are coupled in sequence a first multi-hydrocyclone unit (6) for cleaning out heavy impurities, a second multi-hydrocyclone unit (7) for cleaning out light impurities, and a headbox (8) for a wet machine or paper machine (9). This provides, on one hand, cleaning and pulp or paper production uninterrupted by intermediate storage, and on the other hand a thicken-ing of the pulp in the second multi-hydrocyclone unit from a suitable consistency for cleaning to a thicker consist-ency suitable for spreading on a wire or the like.
CA002042366A 1989-10-10 1990-10-09 Method and device for the production of cellulose pulp of improved quality Expired - Lifetime CA2042366C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP89850341A EP0422314B1 (en) 1989-10-10 1989-10-10 A method and device for the production of cellulose pulp of improved quality
EP89850341.2 1989-10-10

Publications (2)

Publication Number Publication Date
CA2042366A1 true CA2042366A1 (en) 1991-04-11
CA2042366C CA2042366C (en) 1995-07-04

Family

ID=8203268

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002042366A Expired - Lifetime CA2042366C (en) 1989-10-10 1990-10-09 Method and device for the production of cellulose pulp of improved quality

Country Status (10)

Country Link
EP (1) EP0422314B1 (en)
JP (1) JPH0781240B2 (en)
AT (1) ATE104382T1 (en)
BR (1) BR9006945A (en)
CA (1) CA2042366C (en)
DD (1) DD296722A5 (en)
DE (2) DE68914666T2 (en)
ES (1) ES2023626T3 (en)
NO (1) NO178348C (en)
WO (1) WO1991005912A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9317817D0 (en) * 1993-08-27 1993-10-13 Wiggins Teape Group The Ltd Papermaking process and apparatus for use therewith
DE19522761C2 (en) * 1995-06-27 2000-11-16 Voith Sulzer Papiermasch Gmbh Shoe press device
SE507387C2 (en) * 1996-09-16 1998-05-25 Alfa Laval Ab Process and plant for treating a contaminated pulp suspension
SE507386C2 (en) * 1996-09-16 1998-05-25 Alfa Laval Ab Process and plant for treating a contaminated pulp suspension
FI103734B1 (en) * 1997-11-11 1999-08-31 Ahlstrom Machinery Oy Method and apparatus for treating a fiber suspension
FI112806B (en) * 2001-03-09 2004-01-15 Metso Paper Inc A method for controlling the quality of a pulp
FI110699B (en) * 2001-08-15 2003-03-14 Metso Paper Inc Input box for paper machine or equivalent
DE10358567A1 (en) * 2003-12-15 2005-09-08 Nordland Papier Gmbh Method and device for treating a pulp
RU2708110C1 (en) * 2019-04-09 2019-12-04 Николай Васильевич Байкин Fibrous materials sorting device
CN110409212B (en) * 2019-07-19 2021-09-03 王洲 Sandwich type hand towel and production process thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912579A (en) * 1969-06-04 1975-10-14 Bergstrom Paper Co Reverse cleaning and de-inking of paper stock
USRE29472E (en) * 1971-09-29 1977-11-15 Clark & Vicario Corporation Conduit system for conveying fibrous stock from deaerator chamber to headbox in papermaking machine
US4312701A (en) * 1980-11-07 1982-01-26 Hydro-Thermal Corporation Method for defibrating waste paper and dispersing contaminants
US4437984A (en) * 1982-04-05 1984-03-20 Clark & Vicario Corporation Multiple hydrocyclone apparatus
SE435581B (en) * 1982-08-16 1984-10-08 Celleco Ab PROCEDURE FOR DIVIDING A MIXTURE OF A RELATIVELY LOWER FIBER SUSPENSION (ACCEPT) AND LIGHT POLLUTION (REJECT)
SE451736B (en) * 1983-09-19 1987-10-26 Nils Anders Lennart Wikdahl WHEN WATERING A WATER SUSPENSION CONTAINING CELLULOSA FIBERS
US4738779A (en) * 1984-11-28 1988-04-19 Noel Carroll Cyclone separator
SU1376325A1 (en) * 1986-07-10 1990-08-23 Научно-производственное объединение по крахмалопродуктам Multistage multicyclone installation

Also Published As

Publication number Publication date
JPH04502188A (en) 1992-04-16
NO912197D0 (en) 1991-06-07
JPH0781240B2 (en) 1995-08-30
BR9006945A (en) 1991-10-08
DE422314T1 (en) 1991-07-25
WO1991005912A1 (en) 1991-05-02
CA2042366C (en) 1995-07-04
DD296722A5 (en) 1991-12-12
NO178348C (en) 2001-03-05
EP0422314B1 (en) 1994-04-13
NO178348B (en) 1995-11-27
NO912197L (en) 1991-06-07
DE68914666T2 (en) 1994-08-18
EP0422314A1 (en) 1991-04-17
ES2023626A4 (en) 1992-02-01
ATE104382T1 (en) 1994-04-15
ES2023626T3 (en) 1994-07-01
DE68914666D1 (en) 1994-05-19

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Legal Events

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EEER Examination request
MKEX Expiry