GB2102308B - A flotation device for processing waste-paper - Google Patents

A flotation device for processing waste-paper

Info

Publication number
GB2102308B
GB2102308B GB08218457A GB8218457A GB2102308B GB 2102308 B GB2102308 B GB 2102308B GB 08218457 A GB08218457 A GB 08218457A GB 8218457 A GB8218457 A GB 8218457A GB 2102308 B GB2102308 B GB 2102308B
Authority
GB
United Kingdom
Prior art keywords
paper
flotation tank
processing waste
flotation device
flotation
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.)
Expired
Application number
GB08218457A
Other versions
GB2102308A (en
Inventor
Pfalzer Lothar
Werner Cechovsky
Jurgen Mittag
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 GB2102308A publication Critical patent/GB2102308A/en
Application granted granted Critical
Publication of GB2102308B publication Critical patent/GB2102308B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B03D1/1456—Feed mechanisms for the slurry
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Paper (AREA)
  • Physical Water Treatments (AREA)

Abstract

In a flotation device for processing waste-paper, the flotation tank (1) is substantially in the form of an upright cylinder and the waste- paper suspension, mixed with air, is supplied to the flotation tank substantially tangentially and with a horizontal in-flow direction through a single supply line (6, 6') connected in the vicinity of the floor of the flotation tank (1) and having a diffuser widening portion (6) therein. The extraction line (3) for the cleaned suspension is provided near to the connection opening (2) of the supply line in the flotation tank (1), also in the region of the floor thereof. <IMAGE>
GB08218457A 1981-07-10 1982-06-25 A flotation device for processing waste-paper Expired GB2102308B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3127290A DE3127290C2 (en) 1981-07-10 1981-07-10 Flotation device for processing waste paper

Publications (2)

Publication Number Publication Date
GB2102308A GB2102308A (en) 1983-02-02
GB2102308B true GB2102308B (en) 1985-12-04

Family

ID=6136607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08218457A Expired GB2102308B (en) 1981-07-10 1982-06-25 A flotation device for processing waste-paper

Country Status (7)

Country Link
JP (1) JPS5817854A (en)
AT (1) AT378015B (en)
DE (1) DE3127290C2 (en)
FR (1) FR2509337A1 (en)
GB (1) GB2102308B (en)
IT (1) IT1153105B (en)
SE (1) SE451676B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211906C1 (en) * 1982-03-31 1988-12-01 J.M. Voith Gmbh, 7920 Heidenheim Flotation apparatus injector
GB8310494D0 (en) * 1983-04-19 1983-05-25 Beloit Walmsley Ltd Deinking
AT387407B (en) * 1984-01-09 1989-01-25 Escher Wyss Gmbh FLOTATION DEVICE FOR FLOTING FIBER FIBER SUSPENSION MADE FROM WASTE PAPER
DE3524071A1 (en) * 1985-07-05 1987-01-15 Erich Ing Grad Kurz Process and device for the flotation of fibre suspensions
EP0483265B1 (en) * 1989-07-17 1993-09-01 Zander Aufbereitungstechnik GmbH Sewage-treatment plant using the flotation process
US5114568A (en) * 1990-07-13 1992-05-19 Earth Solutions, Inc. Reclamation system for contaminated material
DE4116916C2 (en) * 1991-05-24 1994-09-22 Escher Wyss Gmbh Flotation device for removing impurities, in particular printing ink, from waste paper suspensions
DE4312540C1 (en) * 1993-04-17 1994-10-13 Escher Wyss Gmbh Process for separating solids from a suspension and device for carrying it out
DE19730464A1 (en) 1997-07-16 1999-01-21 Voith Sulzer Stoffaufbereitung Method and flotation device for removing contaminants from an aqueous fiber suspension
EP1208897A1 (en) 2000-11-21 2002-05-29 Epcon Norge AS Combined degassing and flotation tank
AU2001240887B2 (en) * 2001-03-19 2007-05-24 Maelgwyn Mineral Services Limited Pneumatic flotation separation device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535553A1 (en) * 1974-08-09 1976-02-19 Mitsui Mining & Smelting Co METHOD AND DEVICE FOR THE EXTRACTION OF COLOR FROM WASTE PAPER
CH614636A5 (en) * 1976-04-12 1979-12-14 Swemac Sa Process and installation for the elimination, by flotation, of impurities in the form of solid particles contained in a liquid
DE2914392C2 (en) * 1979-04-10 1980-10-23 E. Et M. Lamort S.A., Vitry-Le-Francois Process and device for deinking pulp suspensions

Also Published As

Publication number Publication date
IT8222186A0 (en) 1982-07-01
GB2102308A (en) 1983-02-02
SE8203594L (en) 1983-01-11
JPS5817854A (en) 1983-02-02
FR2509337B3 (en) 1984-07-27
DE3127290A1 (en) 1983-01-27
ATA200982A (en) 1984-10-15
DE3127290C2 (en) 1986-10-30
IT1153105B (en) 1987-01-14
FR2509337A1 (en) 1983-01-14
AT378015B (en) 1985-06-10
SE451676B (en) 1987-10-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee