FI945713A0 - Flotation plant and process and equipmentFlootation plant and process and devices for deinking printing inks r for deinking printing inks - Google Patents

Flotation plant and process and equipmentFlootation plant and process and devices for deinking printing inks r for deinking printing inks

Info

Publication number
FI945713A0
FI945713A0 FI945713A FI945713A FI945713A0 FI 945713 A0 FI945713 A0 FI 945713A0 FI 945713 A FI945713 A FI 945713A FI 945713 A FI945713 A FI 945713A FI 945713 A0 FI945713 A0 FI 945713A0
Authority
FI
Finland
Prior art keywords
deinking
printing inks
plant
furnish
flotation
Prior art date
Application number
FI945713A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI945713A (en
FI105212B (en
Inventor
Myoeh Ilm
Original Assignee
Enso Gutzeit 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 Enso Gutzeit Oy filed Critical Enso Gutzeit Oy
Priority to FI945713A priority Critical patent/FI105212B/en
Publication of FI945713A0 publication Critical patent/FI945713A0/en
Priority to AU39859/95A priority patent/AU3985995A/en
Priority to PCT/FI1995/000663 priority patent/WO1996016743A1/en
Publication of FI945713A publication Critical patent/FI945713A/en
Application granted granted Critical
Publication of FI105212B publication Critical patent/FI105212B/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
    • D21B1/32—Defibrating by other means of waste paper
    • D21B1/325—Defibrating by other means of waste paper de-inking devices
    • D21B1/327—Defibrating by other means of waste paper de-inking devices using flotation devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1406—Flotation machines with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/24—Pneumatic
    • B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/025—De-inking
    • 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
    • D21F1/70—Pulp catching, de-watering, or recovering; Re-use of pulp-water by flotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1462—Discharge mechanisms for the froth
    • 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

Abstract

The invention relates to flotation apparatus and a method of deinking furnish free from ink and colour pigment particles, said apparatus comprising at least one flotation cell with a piping connected thereto for feeding a furnish flow into said cell to the end of separating the clean furnish from froth. An essential property of the invention is therein that the piping (2) is provided with a restriction (3) incorporating an air feed means (4) for efficient mixing of air bubbles in the furnish and that said cell (1) has a separation space (6) combined with a discharge space (7) for the discharge of the clean furnish flow and a means (8) for removing the froth in the fresh state from the separation space (6).
FI945713A 1994-12-02 1994-12-02 Flotation equipment and method for cleaning ink and inks FI105212B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI945713A FI105212B (en) 1994-12-02 1994-12-02 Flotation equipment and method for cleaning ink and inks
AU39859/95A AU3985995A (en) 1994-12-02 1995-12-01 Flotation apparatus and deinking method
PCT/FI1995/000663 WO1996016743A1 (en) 1994-12-02 1995-12-01 Flotation apparatus and deinking method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI945713 1994-12-02
FI945713A FI105212B (en) 1994-12-02 1994-12-02 Flotation equipment and method for cleaning ink and inks

Publications (3)

Publication Number Publication Date
FI945713A0 true FI945713A0 (en) 1994-12-02
FI945713A FI945713A (en) 1996-06-03
FI105212B FI105212B (en) 2000-06-30

Family

ID=8541921

Family Applications (1)

Application Number Title Priority Date Filing Date
FI945713A FI105212B (en) 1994-12-02 1994-12-02 Flotation equipment and method for cleaning ink and inks

Country Status (3)

Country Link
AU (1) AU3985995A (en)
FI (1) FI105212B (en)
WO (1) WO1996016743A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412288B (en) * 2003-02-25 2004-12-27 Andritz Ag Maschf METHOD AND DEVICE FOR VENTILATING SUSPENSIONS
CN100351460C (en) * 2005-01-26 2007-11-28 李风宁 Deinking device
EP2183428A4 (en) * 2007-07-24 2012-05-30 Herbert Gunther Joachim Langner Method and apparatus for separating waste products from cellulose fibres in a paper recycling process
DK177387B1 (en) * 2010-04-12 2013-03-04 Schlumberger Norge As A flotation unit for purifying water, such as a CFU (Compact Flotation Unit)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU515490B2 (en) * 1977-04-29 1981-04-09 Envirotech Corporation Process for clarifying liquids by flocculation
GB2041788B (en) * 1978-08-21 1982-10-06 Feldmuehle Ag Method and device for cleaning suspension fibres
DE3144386C2 (en) * 1981-11-07 1983-12-29 J.M. Voith Gmbh, 7920 Heidenheim Injector flotation apparatus

Also Published As

Publication number Publication date
WO1996016743A1 (en) 1996-06-06
FI945713A (en) 1996-06-03
AU3985995A (en) 1996-06-19
FI105212B (en) 2000-06-30

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