NO174721C - Plants for preparing old paper - Google Patents

Plants for preparing old paper

Info

Publication number
NO174721C
NO174721C NO892725A NO892725A NO174721C NO 174721 C NO174721 C NO 174721C NO 892725 A NO892725 A NO 892725A NO 892725 A NO892725 A NO 892725A NO 174721 C NO174721 C NO 174721C
Authority
NO
Norway
Prior art keywords
plants
old paper
waste paper
preparing old
preparing
Prior art date
Application number
NO892725A
Other languages
Norwegian (no)
Other versions
NO892725D0 (en
NO174721B (en
NO892725L (en
Inventor
Lothar Pfalzer
Original Assignee
Voith Gmbh J M
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 Voith Gmbh J M filed Critical Voith Gmbh J M
Publication of NO892725D0 publication Critical patent/NO892725D0/en
Publication of NO892725L publication Critical patent/NO892725L/en
Publication of NO174721B publication Critical patent/NO174721B/en
Publication of NO174721C publication Critical patent/NO174721C/en

Links

Classifications

    • 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
    • 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
    • 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

  • Paper (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The apparatus for treating waste paper has, in the main train, two different flotation units which are adapted in their design of the air supply - and mixing - to the various particles to be floated with respect to their floatability (size or water repellency). In this way, an improved degree of dirt separation from the waste paper to be de-inked can be achieved. <IMAGE>
NO892725A 1988-07-02 1989-06-30 Plants for preparing old paper NO174721C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3822454A DE3822454C1 (en) 1988-07-02 1988-07-02

Publications (4)

Publication Number Publication Date
NO892725D0 NO892725D0 (en) 1989-06-30
NO892725L NO892725L (en) 1990-01-03
NO174721B NO174721B (en) 1994-03-14
NO174721C true NO174721C (en) 1994-06-22

Family

ID=6357834

Family Applications (1)

Application Number Title Priority Date Filing Date
NO892725A NO174721C (en) 1988-07-02 1989-06-30 Plants for preparing old paper

Country Status (7)

Country Link
EP (1) EP0349806B1 (en)
JP (1) JPH0247381A (en)
AT (1) ATE111985T1 (en)
CA (1) CA1335147C (en)
DE (1) DE3822454C1 (en)
ES (1) ES2058398T3 (en)
NO (1) NO174721C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113861A1 (en) * 1991-04-27 1992-10-29 Gat Handelsgesellschaft Fuer I Device for cleaning waste layer from printing operations - consists of storage vessel linked to reaction vessel by transfer pump with level switches in reaction vessel control agitator, filling, emptying and reagent dosing
DE4426159A1 (en) * 1994-07-22 1994-12-08 Voith Gmbh J M Flotation device
AT412288B (en) * 2003-02-25 2004-12-27 Andritz Ag Maschf METHOD AND DEVICE FOR VENTILATING SUSPENSIONS
DE102004020339A1 (en) * 2004-04-26 2005-11-10 Voith Paper Patent Gmbh Process for flotation of contaminants from an aqueous paper fiber suspension
DE102015000359A1 (en) * 2015-01-20 2016-07-21 Stora Enso Sachsen GmbH Plant and deinking process

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1177465B (en) * 1959-03-12 1964-09-03 Voith Gmbh J M Flotation machine
DE2511435B2 (en) * 1975-03-12 1977-02-03 Flotiervorrichtung Escher Wyss GmbH, 7980 Ravensburg Waste paper pulp cleaning device - having porous base which is selectively covered by strips to control flow of air adjacent foam removing troughs
DE2813448B1 (en) * 1978-03-29 1978-09-21 Voith Gmbh J M Process and plant for recycling waste paper
WO1980000423A1 (en) * 1978-08-21 1980-03-20 Feldmuehle Ag Method and device for cleaning suspension fibres
DE2904326C3 (en) * 1979-02-05 1982-05-13 Naamloze Vennootschap Papierfabriek Gennep, Gennep Process and device for deinking pulp suspensions
US4267052A (en) * 1979-12-10 1981-05-12 Chang Shih Chih Aeration method and apparatus
CH665962A5 (en) * 1985-07-19 1988-06-30 Escher Wyss Gmbh GASIFICATION DEVICE FOR A FLOTATION DEVICE AND ITS USE.
DE3634903A1 (en) * 1986-10-14 1988-04-28 Voith Gmbh J M Flotation device

Also Published As

Publication number Publication date
NO892725D0 (en) 1989-06-30
EP0349806A2 (en) 1990-01-10
NO174721B (en) 1994-03-14
ATE111985T1 (en) 1994-10-15
EP0349806B1 (en) 1994-09-21
ES2058398T3 (en) 1994-11-01
DE3822454C1 (en) 1989-08-24
CA1335147C (en) 1995-04-11
EP0349806A3 (en) 1991-07-31
NO892725L (en) 1990-01-03
JPH0247381A (en) 1990-02-16

Similar Documents

Publication Publication Date Title
FI88524B (en) TRYCK UNDERKASTAD FLOTATIONSMODUL OCH ETT FOERFARANDE FOER TRYCK UNDERKASTAD SKUMSEPARERING
ES541861A0 (en) DEVICE TO VENTILATE DISPERSIONS, ESPECIALLY FLOTATION DEVICE TO REMOVE INK FROM SUSPENSIONS OF FIBROUS MATERIALS
ATA68183A (en) FLOTATION DEVICE FOR FLOTING FIBER FIBER SUSPENSION MADE FROM WASTE PAPER
SE8602773L (en)
FI943895A (en) Paper making process and apparatus implementing the process
PT96491A (en) FLOATING AIRLINER
NO174721C (en) Plants for preparing old paper
CH614636A5 (en) Process and installation for the elimination, by flotation, of impurities in the form of solid particles contained in a liquid
DE69714756D1 (en) VACUUM CLEANER WITH AT LEAST THREE DUST COLLECTION LEVELS WITH SEPARATION LABYRINTH WITH A SUCTION AIR SUPPLY PARTIAL UNDER WATER
ES2149593T3 (en) INK DISPOSAL PROCEDURE.
DE59506733D1 (en) DEVICE FOR FUMING A SUSPENSION
SE8401241D0 (en) CARBOXYLIC ACIDS CONTAINING AMIDOGRAPHS, PROCEDURE FOR THEIR PREPARATION AND USE OF THE ACIDS
DE59402908D1 (en) Separator for waste water loaded with floating substances
FI853043A0 (en) FOERFARANDE OCH ANORDNING FOER ATT FOERBAETTRA EN TORRBANDSPROCESS.
NO990929D0 (en) Method of cleaning fiber suspension
FI891838A (en) LUFTNINGSANORDNING.
ATA1287A (en) FLOTATION DEVICE FOR FLOTING FIBER FIBER SUSPENSION MADE FROM WASTE PAPER