FI19992497A - Method and apparatus for treating wastewater containing coating paste from a paper or board mill - Google Patents

Method and apparatus for treating wastewater containing coating paste from a paper or board mill

Info

Publication number
FI19992497A
FI19992497A FI992497A FI19992497A FI19992497A FI 19992497 A FI19992497 A FI 19992497A FI 992497 A FI992497 A FI 992497A FI 19992497 A FI19992497 A FI 19992497A FI 19992497 A FI19992497 A FI 19992497A
Authority
FI
Finland
Prior art keywords
rotor
paper
blades
coating paste
containing coating
Prior art date
Application number
FI992497A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI108779B (en
Inventor
Mauno Huovinen
Hannu Virtanen
Original Assignee
Megatrex 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
Priority to FI992497A priority Critical patent/FI108779B/en
Application filed by Megatrex Oy filed Critical Megatrex Oy
Priority to ES00981403T priority patent/ES2267590T3/en
Priority to AT00981403T priority patent/ATE333000T1/en
Priority to DE60029358T priority patent/DE60029358T2/en
Priority to EP00981403A priority patent/EP1285119B1/en
Priority to DE00981403T priority patent/DE00981403T1/en
Priority to PCT/FI2000/001022 priority patent/WO2001038632A1/en
Priority to AU18659/01A priority patent/AU1865901A/en
Priority to US10/129,563 priority patent/US6843886B1/en
Priority to CNB008161364A priority patent/CN1162581C/en
Publication of FI19992497A publication Critical patent/FI19992497A/en
Application granted granted Critical
Publication of FI108779B publication Critical patent/FI108779B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/01—Waste products, e.g. sludge
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/928—Paper mill waste, e.g. white water, black liquor treated

Landscapes

  • Paper (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Processing Of Solid Wastes (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

A method and device for processing sewage which contains coating paste from a paper or board mill with a device operating on the principle of a double action impact mill. The device includes a first rotor (11) equipped with blades; a second rotor (12) concentric with the first rotor, equipped with blades and arranged to rotate in a direction opposite to the direction of the first rotor, or a stator concentric with the first rotor and equipped with blades. The sewage is led to a feed opening (14) which opens out to the nave of rotors (11, 12) or to the nave of the rotor and the stator. In the device, the material flow is brought to flow as a flow-off through the blades of the rotors (11, 12) arranged within each other, or of the rotor and the stator arranged within each other.
FI992497A 1999-11-24 1999-11-24 Process for processing filler-containing reject flows at a paper or cardboard factory and using a device FI108779B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FI992497A FI108779B (en) 1999-11-24 1999-11-24 Process for processing filler-containing reject flows at a paper or cardboard factory and using a device
AT00981403T ATE333000T1 (en) 1999-11-24 2000-11-24 METHOD FOR PROCESSING WASTEWATER STREAMS IN A PAPER OR CARDBOARD MACHINE
DE60029358T DE60029358T2 (en) 1999-11-24 2000-11-24 PROCESS FOR PROCESSING WASTE WATER IN A PAPER OR PAPER MACHINE
EP00981403A EP1285119B1 (en) 1999-11-24 2000-11-24 Method for processing filled reject flows in a paper or board mill
ES00981403T ES2267590T3 (en) 1999-11-24 2000-11-24 PROCEDURE FOR PROCESSING FILLED WASTE FILLING IN A PAPER OR CARTON FACTORY.
DE00981403T DE00981403T1 (en) 1999-11-24 2000-11-24 METHOD AND DEVICE FOR PROCESSING WASTE WATER IN A PAPER OR PAPER MACHINE
PCT/FI2000/001022 WO2001038632A1 (en) 1999-11-24 2000-11-24 Method and device for handling filled reject flows in a paper or paperboard mill
AU18659/01A AU1865901A (en) 1999-11-24 2000-11-24 Method and device for handling filled reject flows in a paper or paperboard mill
US10/129,563 US6843886B1 (en) 1999-11-24 2000-11-24 Method for handling filled reject flows in a paper or paperboard mill
CNB008161364A CN1162581C (en) 1999-11-24 2000-11-24 Method and device for handling filled reject flows in paper or paperboard mill

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI992497A FI108779B (en) 1999-11-24 1999-11-24 Process for processing filler-containing reject flows at a paper or cardboard factory and using a device
FI992497 1999-11-24

Publications (2)

Publication Number Publication Date
FI19992497A true FI19992497A (en) 2001-05-25
FI108779B FI108779B (en) 2002-03-28

Family

ID=8555626

Family Applications (1)

Application Number Title Priority Date Filing Date
FI992497A FI108779B (en) 1999-11-24 1999-11-24 Process for processing filler-containing reject flows at a paper or cardboard factory and using a device

Country Status (9)

Country Link
US (1) US6843886B1 (en)
EP (1) EP1285119B1 (en)
CN (1) CN1162581C (en)
AT (1) ATE333000T1 (en)
AU (1) AU1865901A (en)
DE (2) DE60029358T2 (en)
ES (1) ES2267590T3 (en)
FI (1) FI108779B (en)
WO (1) WO2001038632A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122331B4 (en) * 2001-05-08 2005-07-21 Alpha Calcit Füllstoff Gesellschaft Mbh Process for recycling and use of rejects
FI117711B (en) * 2004-10-13 2007-01-31 Fractivator Oy Method and apparatus for treating materials or mixtures of materials
FI119467B (en) 2007-04-10 2008-11-28 Fractivator Oy Improved recoil mill
WO2015091439A1 (en) 2013-12-20 2015-06-25 Tetra Laval Holdings & Finance S.A. A liquid processing mixer

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL280219A (en) * 1961-06-28 1900-01-01
DK103336C (en) * 1961-12-07 1965-12-13 Niro Atomizer As Process for the production of pulp and process for the production of pulp paper produced by this process.
US3912579A (en) * 1969-06-04 1975-10-14 Bergstrom Paper Co Reverse cleaning and de-inking of paper stock
US3876497A (en) * 1971-11-23 1975-04-08 Sterling Drug Inc Paper mill waste sludge oxidation and product recovery
US3849245A (en) * 1972-02-09 1974-11-19 Black Clawson Fibreclaim Inc Separation of greasy liquids and recovery of paper fiber from municipal refuse
US4030968A (en) * 1975-12-22 1977-06-21 Consolidated-Bathurst Limited Disposal of paper pulp mill sludge
SE407443B (en) 1977-03-10 1979-03-26 Burstroem Bertil Ingvar ELEMENT FOR RECOVERY LIKE A NAIL, BLIND NAIL, MERLA IN CONSTRUCTION MATERIAL, SASOM WOOD, LIGHT CONCRETE AND PLASTER
DE4034054C1 (en) * 1990-10-26 1992-04-02 Feldmuehle Ag, 4000 Duesseldorf, De
GB9212867D0 (en) 1992-06-17 1992-07-29 Wiggins Teape Group Ltd Recovery and re-use of raw materials from paper mill waste sludge
FI93753C (en) * 1993-07-28 1995-05-26 Ahlstroem Oy Method and apparatus for processing filler-containing material such as recycled fiber
US5536371A (en) * 1994-02-10 1996-07-16 The Onix Corporation Papermaking sludge recovery process and apparatus
FI100860B (en) 1994-12-16 1998-03-13 Megatrex Oy Process and apparatus for slurrying of finely divided substances in liquid a
FI101638B1 (en) 1994-12-22 1998-07-31 Megatrex Oy Arrangement for protecting the rotor bearings of pin mill type equipment
DE19627523C1 (en) * 1996-07-09 1997-10-23 Alpha Calcit Fuellstoff Gmbh Preparation of filler or pigment coating material for paper, pulp or board from waste sludge
FI105112B (en) 1997-01-03 2000-06-15 Megatrex Oy Method and apparatus for defibrating fibrous material
CA2328205A1 (en) 1998-04-16 1999-10-28 Megatrex Oy Method and apparatus for processing pulp stock derived from a pulp or paper mill
FI982737A (en) * 1998-12-17 2000-06-18 Valmet Corp Process for producing paper and / or cardboard and for energy production, as well as a production process and an industrial plant applying the procedure
US6572736B2 (en) * 2000-10-10 2003-06-03 Atlas Roofing Corporation Non-woven web made with untreated clarifier sludge

Also Published As

Publication number Publication date
CN1399694A (en) 2003-02-26
EP1285119B1 (en) 2006-07-12
AU1865901A (en) 2001-06-04
DE00981403T1 (en) 2005-05-04
DE60029358T2 (en) 2007-07-05
FI108779B (en) 2002-03-28
CN1162581C (en) 2004-08-18
DE60029358D1 (en) 2006-08-24
ATE333000T1 (en) 2006-08-15
US6843886B1 (en) 2005-01-18
EP1285119A1 (en) 2003-02-26
ES2267590T3 (en) 2007-03-16
WO2001038632A1 (en) 2001-05-31

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