SE8603022D0 - GASING DEVICE FOR A FLOTING APPLIANCE AND ITS APPLICATION IN TREATMENT OF PAPER Pulp, Separate for Peel Off - Google Patents

GASING DEVICE FOR A FLOTING APPLIANCE AND ITS APPLICATION IN TREATMENT OF PAPER Pulp, Separate for Peel Off

Info

Publication number
SE8603022D0
SE8603022D0 SE8603022A SE8603022A SE8603022D0 SE 8603022 D0 SE8603022 D0 SE 8603022D0 SE 8603022 A SE8603022 A SE 8603022A SE 8603022 A SE8603022 A SE 8603022A SE 8603022 D0 SE8603022 D0 SE 8603022D0
Authority
SE
Sweden
Prior art keywords
floting
peel
appliance
separate
treatment
Prior art date
Application number
SE8603022A
Other languages
Swedish (sv)
Other versions
SE8603022L (en
Inventor
E Linck
W Siewert
Original Assignee
Escher Wyss 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 Escher Wyss Gmbh filed Critical Escher Wyss Gmbh
Publication of SE8603022D0 publication Critical patent/SE8603022D0/en
Publication of SE8603022L publication Critical patent/SE8603022L/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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • 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
    • B03D1/02—Froth-flotation processes
    • B03D1/028—Control and monitoring of flotation processes; computer models therefor
    • 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
    • B03D1/1418—Flotation machines using centrifugal forces
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

In a gassing device, in particular for a flotation device, a higher gas loading is achieved by using a stage diffusor (1) having a cross-section which widens stepwise, the gas feed line (8) ending immediately downstream of a widening (5). In this way, a gas loading of more than 50% can be achieved, if the mixing length (V1 + V2)/A0, that is say the ratio of the mixing volume downstream of the gas feed to the entry cross-section, is at least 1 m. Such devices are particularly suitable for effecting cleaning of fibre material suspensions, obtained from waste paper, by removal of foreign materials for the purpose of producing clean paper from waste paper. <IMAGE>
SE8603022A 1985-07-19 1986-07-07 GASING DEVICE FOR A FLOTING APPLIANCE AND ITS APPLICATION IN TREATMENT OF PAPER Pulp, Separate for Peel Off SE8603022L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH3153/85A CH665962A5 (en) 1985-07-19 1985-07-19 GASIFICATION DEVICE FOR A FLOTATION DEVICE AND ITS USE.

Publications (2)

Publication Number Publication Date
SE8603022D0 true SE8603022D0 (en) 1986-07-07
SE8603022L SE8603022L (en) 1987-01-20

Family

ID=4249760

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8603022A SE8603022L (en) 1985-07-19 1986-07-07 GASING DEVICE FOR A FLOTING APPLIANCE AND ITS APPLICATION IN TREATMENT OF PAPER Pulp, Separate for Peel Off

Country Status (4)

Country Link
CH (1) CH665962A5 (en)
DE (1) DE3529638A1 (en)
FR (1) FR2584947B1 (en)
SE (1) SE8603022L (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861165A (en) * 1986-08-20 1989-08-29 Beloit Corporation Method of and means for hydrodynamic mixing
US4964733A (en) * 1986-08-20 1990-10-23 Beloit Corporation Method of and means for hydrodynamic mixing
DE3822454C1 (en) * 1988-07-02 1989-08-24 J.M. Voith Gmbh, 7920 Heidenheim, De
US5236090A (en) * 1990-05-30 1993-08-17 Sulzer-Escher Wyss Gmbh Flotation-deinking-device
DE4017446C2 (en) * 1990-05-30 1995-02-23 Escher Wyss Gmbh Flotation deinking device
ZA919256B (en) * 1990-11-23 1992-11-25 Atomaer Pty Ltd Gas particle formation
DE4116916C2 (en) * 1991-05-24 1994-09-22 Escher Wyss Gmbh Flotation device for removing impurities, in particular printing ink, from waste paper suspensions
US5403475A (en) * 1993-01-22 1995-04-04 Allen; Judith L. Liquid decontamination method
DE4312540C1 (en) * 1993-04-17 1994-10-13 Escher Wyss Gmbh Process for separating solids from a suspension and device for carrying it out
GB9921716D0 (en) * 1999-09-14 1999-11-17 Maelgwyn Mineral Services Limi Pneumatic flotation separation device
AT408957B (en) 2000-02-03 2002-04-25 Andritz Ag Maschf METHOD AND DEVICE FOR VENTILATING DISPERSIONS
US7108136B2 (en) 2001-03-19 2006-09-19 Rainer Imhof Pneumatic flotation separation device
DE102009040318A1 (en) * 2009-09-05 2011-03-10 Voith Patent Gmbh Method for removing impurities from waste paper suspension, involves forming suspension jet, and pulling surface of suspension jet accessible to supplied gas during or after discharge from jet forming channel
EP2308601A1 (en) * 2009-09-29 2011-04-13 Siemens Aktiengesellschaft Dispenser nozzle, flotation machine with dispenser nozzle and method for its operation
EP2572778B1 (en) * 2011-09-23 2017-03-08 Primetals Technologies Germany GmbH Flotation machine with dispenser nozzle and method for its operation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH581493A5 (en) * 1974-06-24 1976-11-15 Escher Wyss Ag Static mixer for in line mixing - having sudden expansion with secondary fluid injection just prior to it
EP0037513B1 (en) * 1980-04-09 1984-08-08 Feldmühle Aktiengesellschaft Flotation apparatus for deinking fibrous suspensions
DE3211906C1 (en) * 1982-03-31 1988-12-01 J.M. Voith Gmbh, 7920 Heidenheim Flotation apparatus injector
DE3245847C1 (en) * 1982-12-10 1984-11-08 E. & M. Lamort S.A., Vitry-le-François, Marne Device for floating suspensions
CH658481A5 (en) * 1983-02-18 1986-11-14 Escher Wyss Gmbh FLOTATION DEVICE FOR FLOTING FIBER FIBER SUSPENSION MADE FROM WASTE PAPER.
DE3401161A1 (en) * 1984-01-14 1985-11-21 Sulzer-Escher Wyss GmbH, 7980 Ravensburg Flotation device for the floatation of a fibre material suspension obtained from wastepaper

Also Published As

Publication number Publication date
DE3529638C2 (en) 1987-02-12
CH665962A5 (en) 1988-06-30
FR2584947A1 (en) 1987-01-23
DE3529638A1 (en) 1986-07-17
SE8603022L (en) 1987-01-20
FR2584947B1 (en) 1988-04-22

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Effective date: 19920710