ATE416272T1 - METHOD FOR FRACTIONING AN AQUEOUS PAPER FIBER SUSPENSION AND HYDROCYCLONE FOR CARRYING OUT THE METHOD - Google Patents

METHOD FOR FRACTIONING AN AQUEOUS PAPER FIBER SUSPENSION AND HYDROCYCLONE FOR CARRYING OUT THE METHOD

Info

Publication number
ATE416272T1
ATE416272T1 AT05790369T AT05790369T ATE416272T1 AT E416272 T1 ATE416272 T1 AT E416272T1 AT 05790369 T AT05790369 T AT 05790369T AT 05790369 T AT05790369 T AT 05790369T AT E416272 T1 ATE416272 T1 AT E416272T1
Authority
AT
Austria
Prior art keywords
fractionating
axial direction
fractioning
hydrocyclone
carrying
Prior art date
Application number
AT05790369T
Other languages
German (de)
Inventor
Martin Kemper
Bo Norman
Jan Sandberg
Jonas Bergstroem
Ko Jordan
Hannes Vomhoff
Wolfgang Mannes
Torsten Paul
Original Assignee
Voith Patent 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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Application granted granted Critical
Publication of ATE416272T1 publication Critical patent/ATE416272T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/06—Construction of inlets or outlets to the vortex chamber
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
    • D21D5/24—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force in cyclones

Abstract

The invention relates to a method and to a device which is used to fraction aqueous paper fibre suspensions (S). Relatively large centrifugal forces are used, also in suspension components having essentially the same densities, in order to achieve good results. This is achieved by virtue of the fact that the paper fibre suspension (S) entering via the inlet (10) is guided initially in a first annular chamber (4) which narrows in an axial direction (4) and subsequently in a second annular chamber (5) which widens in an axial direction. As a result, good fractionating results can be obtained, in particular, when the fibre material consistency in the inlet area is approximately 0.5 - 2 % and also the necessary mass fluxes are maintained at a relatively low level. Said method can be used, for example, for fractionating fresh cellulose and/or wood pulp. It can also be used in the preparation of used paper, wherein said method is particularly economical.
AT05790369T 2004-09-22 2005-09-17 METHOD FOR FRACTIONING AN AQUEOUS PAPER FIBER SUSPENSION AND HYDROCYCLONE FOR CARRYING OUT THE METHOD ATE416272T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004045823A DE102004045823A1 (en) 2004-09-22 2004-09-22 Process for fractionating an aqueous paper fiber suspension and hydrocyclone for carrying out the process

Publications (1)

Publication Number Publication Date
ATE416272T1 true ATE416272T1 (en) 2008-12-15

Family

ID=35355635

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05790369T ATE416272T1 (en) 2004-09-22 2005-09-17 METHOD FOR FRACTIONING AN AQUEOUS PAPER FIBER SUSPENSION AND HYDROCYCLONE FOR CARRYING OUT THE METHOD

Country Status (7)

Country Link
EP (1) EP1799903B1 (en)
JP (1) JP2008513625A (en)
AT (1) ATE416272T1 (en)
DE (2) DE102004045823A1 (en)
ES (1) ES2317303T3 (en)
RU (1) RU2007110481A (en)
WO (1) WO2006032427A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008009134A1 (en) * 2008-02-14 2009-08-20 Voith Patent Gmbh Removing impurities from aqueous fibrous material suspension formed from printed waste paper, comprises forming fine fraction and rough fraction from the material suspension by fractionating, and treating the fine fraction in a floatation
DE102008010447A1 (en) * 2008-02-21 2009-08-27 Voith Patent Gmbh Fibrous material suspension treating and utilizing method for manufacturing paper, involves forming fine fraction and coarse fraction by fractioning function, where coarse fraction is predominantly used for layer of paper
DE102010022414A1 (en) * 2010-06-01 2011-12-01 Günther Kramb jun. Emulsifying device for emulsifying two or multiple substances used in beverage industry, chemical industry, pharmaceutical industry and medicines, has housing which encloses reaction chamber that has inlets for both mediums
DE102010017409A1 (en) * 2010-06-17 2011-12-22 Daan Waubert de Puiseau flow generator
AT511837B1 (en) * 2012-02-10 2013-03-15 Andritz Energy & Environment Gmbh HYDROCYCLONE WITH FINANCIAL SUPPLEMENT IN THE CYCLONE SUBSTITUTE
JP6604601B2 (en) * 2014-06-05 2019-11-13 永進テクノ株式会社 Cyclone separator
WO2018036623A1 (en) * 2016-08-24 2018-03-01 Emco Water Patent Gmbh Device for the energy-optimised production of fluid eddies in a reaction chamber
WO2018084254A1 (en) * 2016-11-02 2018-05-11 田村　稔 Method for mixing a plurality of solutions
DE102021004050A1 (en) * 2021-08-05 2023-02-09 Messer Se & Co. Kgaa Device and method for separating fluid mixtures
DE102022106285A1 (en) * 2022-03-17 2023-09-21 Messer Se & Co. Kgaa Device and method for continuous gas exchange in a stream of a fluid mixture
CN116586209B (en) * 2023-07-11 2023-11-21 天津美腾科技股份有限公司 Novel three-section heavy medium cyclone

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT382910B (en) * 1982-12-09 1987-04-27 Escher Wyss Gmbh HISTORIC SIFTER FOR SEPARATING IMPURITIES FROM FABRIC SUSPENSIONS
US4696737A (en) * 1986-02-28 1987-09-29 The Bauer Bros. Co. Fiber recovery elutriating hydrocyclone
FR2703602B1 (en) * 1993-04-06 1995-06-09 Callec Paul PROCESS FOR SEPARATING PARTICULATE PRODUCTS OF DIFFERENT DENSITIES IN SUSPENSION IN A FLUID AND DEVICE FOR IMPLEMENTING SAME.
US5587078A (en) * 1994-04-01 1996-12-24 Ahlstrom Machinery Corporation Centrifugal cleaner
US5769243A (en) * 1996-07-30 1998-06-23 Thermo Black Clawson Inc. Through-flow cleaner with improved inlet section
EP1069234B1 (en) * 1999-07-06 2004-05-26 Voith Paper Patent GmbH Method and device for removing impurities from a hydrocyclone
EP1413359A1 (en) * 2002-10-22 2004-04-28 Voith Paper Patent GmbH Process and apparatus for separating heavy materials from a fibrous suspension

Also Published As

Publication number Publication date
DE102004045823A1 (en) 2006-03-23
RU2007110481A (en) 2008-09-27
JP2008513625A (en) 2008-05-01
DE502005006168D1 (en) 2009-01-15
EP1799903B1 (en) 2008-12-03
WO2006032427A1 (en) 2006-03-30
EP1799903A1 (en) 2007-06-27
ES2317303T3 (en) 2009-04-16

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