CA2958823C - Method and device for cleaning fiber suspensions by means of flotation - Google Patents

Method and device for cleaning fiber suspensions by means of flotation Download PDF

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Publication number
CA2958823C
CA2958823C CA2958823A CA2958823A CA2958823C CA 2958823 C CA2958823 C CA 2958823C CA 2958823 A CA2958823 A CA 2958823A CA 2958823 A CA2958823 A CA 2958823A CA 2958823 C CA2958823 C CA 2958823C
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CA
Canada
Prior art keywords
conduit
liquid
opening
gas bubbles
solid
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.)
Active
Application number
CA2958823A
Other languages
English (en)
French (fr)
Other versions
CA2958823A1 (en
Inventor
Ralf Menne
Andreas Ritter
Oliver MAMAT
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.)
Rithco Papertec GmbH
Original Assignee
Rithco Papertec 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 Rithco Papertec GmbH filed Critical Rithco Papertec GmbH
Publication of CA2958823A1 publication Critical patent/CA2958823A1/en
Application granted granted Critical
Publication of CA2958823C publication Critical patent/CA2958823C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • 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
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3123—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements
    • B01F25/31232—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements used simultaneously
    • 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
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
    • 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
    • B03D1/242—Nozzles for injecting gas into the flotation tank
    • 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
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1456—Feed mechanisms for the slurry
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biotechnology (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Physical Water Treatments (AREA)
CA2958823A 2014-08-22 2015-08-14 Method and device for cleaning fiber suspensions by means of flotation Active CA2958823C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014012666.8A DE102014012666B4 (de) 2014-08-22 2014-08-22 Vorrichtung und Verfahren zur Reinigung von verunreinigten Feststoff-Flüssigkeits-Gemischen und Verwendung der Vorrichtung und des Verfahrens
DE102014012666.8 2014-08-22
PCT/DE2015/000408 WO2016026477A1 (de) 2014-08-22 2015-08-14 Verfahren und vorrichtung zur reinigung fasertoffsupensionen mittels flotation

Publications (2)

Publication Number Publication Date
CA2958823A1 CA2958823A1 (en) 2016-02-25
CA2958823C true CA2958823C (en) 2019-08-20

Family

ID=54347452

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2958823A Active CA2958823C (en) 2014-08-22 2015-08-14 Method and device for cleaning fiber suspensions by means of flotation

Country Status (11)

Country Link
US (1) US10799885B2 (2)
EP (1) EP3183052B1 (2)
JP (1) JP6782697B2 (2)
CA (1) CA2958823C (2)
DE (1) DE102014012666B4 (2)
ES (1) ES2812755T3 (2)
HR (1) HRP20201255T1 (2)
HU (1) HUE051667T2 (2)
PL (1) PL3183052T3 (2)
PT (1) PT3183052T (2)
WO (1) WO2016026477A1 (2)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014012666B4 (de) * 2014-08-22 2016-07-21 Rithco Papertec Gmbh Vorrichtung und Verfahren zur Reinigung von verunreinigten Feststoff-Flüssigkeits-Gemischen und Verwendung der Vorrichtung und des Verfahrens
US12329185B2 (en) * 2014-10-23 2025-06-17 Formtec, Llc. System and method for creating cavitation and/or flash
US20190168175A1 (en) * 2017-12-06 2019-06-06 Larry Baxter Solids-Producing Siphoning Exchanger
GB2593190B (en) * 2020-03-18 2024-12-25 Teesside Univ A microbubble generator
US11697098B2 (en) 2020-10-09 2023-07-11 RheoVest, LLC Apparatus and method for making variable density foam fluid systems
KR102347019B1 (ko) * 2021-05-28 2022-01-03 조희룡 이중 벤츄리 효과를 갖는 유체 공급용 파이프 및 이를 적용한 양식생물을 위한 산소공급장치를 구비한 양식 시스템
CN118896516B (zh) * 2024-10-09 2025-01-03 华能景泰热电有限公司 一种空预器积灰用气泡清洁装置及方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
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DE792C (de) * 1877-09-20 N. schäffer in Breslau Naturalkorkläufer und Tarquets für Fufsböden jeder Art
US4331534A (en) * 1978-08-21 1982-05-25 Feldmuhle Aktiengesellschaft Method of and arrangement for the de-inking of pulp suspensions
JPS58132586A (ja) * 1982-02-03 1983-08-06 Canon Inc インクジェット用被記録材
JPS58132586U (ja) * 1982-03-03 1983-09-07 栗田工業株式会社 加圧浮上分離装置
FR2619023B1 (fr) * 1987-08-07 1991-04-12 Lamort E & M Injecteur melangeur sous pression
DE69329061T2 (de) * 1992-05-14 2000-12-21 Idec Izumi Corp., Osaka Vorrichtung zur lösung eines gases in bzw zur mischung einer flüssigkeit
FR2727441B1 (fr) * 1994-11-28 1997-01-31 Lamort E & M Perfectionnements aux dispositifs d'injection d'air dans un flux de pate a papier pour en operer le desencrage
JPH1176780A (ja) * 1997-08-29 1999-03-23 Idec Izumi Corp 微細泡沫供給装置
EP0963784B1 (en) 1997-12-30 2006-10-11 Hirofumi Ohnari Swirling fine-bubble generator and method
JP3397154B2 (ja) * 1997-12-30 2003-04-14 博文 大成 旋回式微細気泡発生装置
JP2003144882A (ja) * 2001-11-12 2003-05-20 Ikeuchi:Kk 水中噴射ノズルおよび該ノズルを備えた水流発生装置
JP2005028306A (ja) * 2003-07-07 2005-02-03 Institute Of Computational Fluid Dynamics 気液混合装置及び汚水浄化装置
JP5283013B2 (ja) * 2006-08-21 2013-09-04 信子 萩原 気液混合装置
JP4760649B2 (ja) * 2006-09-29 2011-08-31 栗田工業株式会社 加圧浮上装置
JP5002480B2 (ja) * 2008-02-15 2012-08-15 有限会社オーケー・エンジニアリング ループ流式バブル発生ノズル
DE102008056040A1 (de) 2008-11-05 2010-05-06 Voith Patent Gmbh Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension durch Flotation sowie Vorrichtung zu seiner Durchführung
DE102008064271A1 (de) 2008-12-20 2010-07-01 Voith Patent Gmbh Verfahren zur Entfernung von Feststoffen aus einer Fasersuspension durch Flotation sowie Flotationsvorrichtung zu seiner Durchführung
JP2011240218A (ja) * 2010-05-14 2011-12-01 Dainippon Screen Mfg Co Ltd 微細気泡発生装置および方法
DE102011009792A1 (de) * 2011-01-29 2012-08-02 Ralf Menne Verfahren und Anordnung zur Reinigung von verunreinigten Fasern
JP2013086011A (ja) * 2011-10-17 2013-05-13 Asahi Organic Chemicals Industry Co Ltd オゾン水製造方法及び製造装置
KR101157857B1 (ko) * 2011-12-13 2012-06-22 (주)써니엔지텍 유체 토출장치
DE102014012666B4 (de) * 2014-08-22 2016-07-21 Rithco Papertec Gmbh Vorrichtung und Verfahren zur Reinigung von verunreinigten Feststoff-Flüssigkeits-Gemischen und Verwendung der Vorrichtung und des Verfahrens

Also Published As

Publication number Publication date
EP3183052B1 (de) 2020-06-03
DE102014012666A1 (de) 2016-02-25
CA2958823A1 (en) 2016-02-25
HUE051667T2 (hu) 2021-03-29
EP3183052A1 (de) 2017-06-28
JP6782697B2 (ja) 2020-11-11
JP2017525565A (ja) 2017-09-07
PT3183052T (pt) 2020-09-07
HRP20201255T1 (hr) 2020-11-13
PL3183052T3 (pl) 2020-12-14
WO2016026477A1 (de) 2016-02-25
US10799885B2 (en) 2020-10-13
DE102014012666B4 (de) 2016-07-21
ES2812755T3 (es) 2021-03-18
US20170225176A1 (en) 2017-08-10

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