FR2442663A1 - DEVICE FOR INTRODUCING A SUSPENSION OF FIBROUS MATERIAL INTO A FLOATING TANK - Google Patents

DEVICE FOR INTRODUCING A SUSPENSION OF FIBROUS MATERIAL INTO A FLOATING TANK

Info

Publication number
FR2442663A1
FR2442663A1 FR7929015A FR7929015A FR2442663A1 FR 2442663 A1 FR2442663 A1 FR 2442663A1 FR 7929015 A FR7929015 A FR 7929015A FR 7929015 A FR7929015 A FR 7929015A FR 2442663 A1 FR2442663 A1 FR 2442663A1
Authority
FR
France
Prior art keywords
suspension
outside
rotor
introducing
fibrous material
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
FR7929015A
Other languages
French (fr)
Other versions
FR2442663B3 (en
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.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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 JM Voith GmbH filed Critical JM Voith GmbH
Publication of FR2442663A1 publication Critical patent/FR2442663A1/en
Application granted granted Critical
Publication of FR2442663B3 publication Critical patent/FR2442663B3/fr
Granted legal-status Critical Current

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
    • 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
    • B03D1/16—Flotation machines with impellers; Subaeration machines
    • B03D1/22—Flotation machines with impellers; Subaeration machines with external blowers
    • 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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Biotechnology (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

L'invention concerne un dispositif pour introduire une suspension de matière fibreuse dans une cuve de flottation et pour mélanger cette suspension avec de l'air. Le fond de la cuve comporte un rotor 8 au centre duquel débouche une conduite 6 d'alimentation pour la suspension ainsi qu'un- tuyau 7 pour l'air. Le rotor comprend des aubes radiales à l'extérieur desquelles sont disposées des aubes directrices fixes 9 comprenant deux parties, à savoir une partie interne directrice 10 à orientation tangentielle et une partie externe déflectrice 11 formant un angle plus prononce vers l'extérieur, à l'encontre du sens de rotation. Des barrettes déflectrices 12, parallèles à l'axe du rotor, sont prévues dans la zone de sortie des aubes. Applicatio : cuves pour éliminer l'encre d'imprimerie et les impuretés des vieux papiers.The invention relates to a device for introducing a suspension of fibrous material into a flotation tank and for mixing this suspension with air. The bottom of the tank has a rotor 8, at the center of which opens a supply pipe 6 for the suspension as well as a pipe 7 for the air. The rotor comprises radial vanes on the outside of which are arranged fixed guide vanes 9 comprising two parts, namely an internal directing part 10 with tangential orientation and an external deflecting part 11 forming a more pronounced angle towards the outside, to the outside. 'against the direction of rotation. Deflector bars 12, parallel to the axis of the rotor, are provided in the exit zone of the blades. Applicatio: tanks for removing printing ink and impurities from waste paper.

FR7929015A 1978-12-01 1979-11-20 DEVICE FOR INTRODUCING A SUSPENSION OF FIBROUS MATERIAL INTO A FLOATING TANK Granted FR2442663A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2852023A DE2852023C2 (en) 1978-12-01 1978-12-01 Device for introducing a pulp suspension into a flotation tank

Publications (2)

Publication Number Publication Date
FR2442663A1 true FR2442663A1 (en) 1980-06-27
FR2442663B3 FR2442663B3 (en) 1981-08-28

Family

ID=6056081

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7929015A Granted FR2442663A1 (en) 1978-12-01 1979-11-20 DEVICE FOR INTRODUCING A SUSPENSION OF FIBROUS MATERIAL INTO A FLOATING TANK

Country Status (9)

Country Link
JP (1) JPS5575750A (en)
AT (1) AT370794B (en)
DE (1) DE2852023C2 (en)
FI (1) FI793758A (en)
FR (1) FR2442663A1 (en)
GB (1) GB2039763B (en)
IT (1) IT1119511B (en)
NL (1) NL7908486A (en)
SE (1) SE7909747L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI83482C (en) * 1990-01-10 1991-07-25 Outokumpu Oy SAETTING OVER ANORDNING MATERIAL AV LUFT I FLOTATIONSCELL.
US5244097A (en) * 1990-01-10 1993-09-14 Outokumpu Oy Apparatus for feeding air into a flotation cell
DE19948176B4 (en) * 1999-10-07 2004-05-13 Voith Paper Patent Gmbh Flotation device for removing impurities, in particular printing ink, from paper fiber suspensions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136201B2 (en) * 1972-03-18 1976-10-07
JPS4948604B2 (en) * 1972-10-11 1974-12-23

Also Published As

Publication number Publication date
GB2039763B (en) 1982-11-10
NL7908486A (en) 1980-06-03
IT1119511B (en) 1986-03-10
SE7909747L (en) 1980-06-02
AT370794B (en) 1983-05-10
ATA629579A (en) 1982-09-15
FI793758A (en) 1980-06-02
IT7969247A0 (en) 1979-11-20
DE2852023B1 (en) 1979-12-20
JPS5575750A (en) 1980-06-07
FR2442663B3 (en) 1981-08-28
DE2852023C2 (en) 1980-08-28
GB2039763A (en) 1980-08-20

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Legal Events

Date Code Title Description
ST Notification of lapse