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HRP20201255T1 - Postupak i uređaj za čišćenje suspenzija vlakana pomoću flotacije - Google Patents

Postupak i uređaj za čišćenje suspenzija vlakana pomoću flotacije Download PDF

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Publication number
HRP20201255T1
HRP20201255T1 HRP20201255TT HRP20201255T HRP20201255T1 HR P20201255 T1 HRP20201255 T1 HR P20201255T1 HR P20201255T T HRP20201255T T HR P20201255TT HR P20201255 T HRP20201255 T HR P20201255T HR P20201255 T1 HRP20201255 T1 HR P20201255T1
Authority
HR
Croatia
Prior art keywords
pipeline
liquid
solid
gas
opening
Prior art date
Application number
HRP20201255TT
Other languages
English (en)
Inventor
Ralf Menne
Andreas Ritter
Oliver MAMAT
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 HRP20201255T1 publication Critical patent/HRP20201255T1/hr

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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)

Claims (10)

1. Uređaj (1) za čišćenje kontaminiranih smjesa krutina-tekućina, koji sadrži: • najmanje jedan prvi cjevovod (2) za dovod tekućine, gdje je poželjna voda, • najmanje jedan drugi cjevovod (3) za dovod smjese krutina-tekućina, gdje je poželjna vlaknasta suspenzija, a naročito je poželjna suspenzija od papirnih vlakana, • najmanje jedan treći cjevovod (4), koji spaja prvi i drugi cjevovod (2, 3) i sadrži najmanje jedan element za miješanje (5), koji djeluje prema Venturijevom principu, • pri čemu element za miješanje (5) ima dva suprotno usmjerena stošca (7, 11), koji se svaki otvara s njihovim malim prolaznim otvorom u komoru (9) tvoreći šupljinu, dok uzrokuju skok veličine poprečnog presjeka prolaznog otvora, pri čemu je područje otvora u komoru (9) koje tvori šupljinu konstruirano tako da se mali prolazni otvor (12, 13) svakog od konusa (7, 11) nastavlja u ne-stožast dio linije (8, 10) na način koji odgovara poprečnom presjeku malih prolaznih otvora (12, 13), pri čemu se ti konusni dijelovi crte (8, 10) otvaraju u navedenu komoru (9) između stožaca (7, 11) na mjestima na kojima dolazi do skoka veličine poprečnog presjeka prolaznog otvora, veliki prolazni otvor prvog konusa (7) je spojen putem trećeg cjevovoda (4) na prvi cjevovod (2) i veliki prolazni otvor drugog konusa (11) je spojen putem trećeg cjevovoda (4) na drugi cjevovod (2), mali prolazni otvor (12) prvog konusa (7) je oblikovan između 20 i 40% manji nego mali prolazni otvor (13) drugog konusa (11) i dva suprotno usmjerena stošca (7, 11) i ne-konusni dijelovi linije su raspoređeni u uzdužnom aksijalnom poravnanju, • najmanje jedan četvrti cjevovod (6) za dovođenje plina, poželjno zraka, pri čemu se četvrti cjevovod (6) otvara u komoru (9) elementa za miješanje (5) tvoreći šupljinu, te • najmanje jedan frakcionator smješten nizvodno od drugog cjevovoda (3) za uklanjanje pjene nastale flotacijom.
2. Uređaj prema patentnom zahtjevu 1, naznačen time što se treći cjevovod (4) otvara u drugi cjevovod (3) pod kutom od 90°±45°.
3. Uređaj prema patentnom zahtjevu 2, naznačen time što se treći cjevovod (4) otvara u drugi cjevovod (3) pod kutom od 45° u smjeru strujanja ili suprotno smjeru strujanja drugog cjevovoda.
4. Uređaj prema patentnim zahtjevima 1 do 3, naznačen time što uređaj (1) sadrži daljnje cjevovode (4) s elementom za miješanje (5), koji su smješteni u obliku kaskade i smješteni nizvodno od otvora trećeg cjevovoda (4) u drugi cjevovod (3).
5. Postupak za čišćenje kontaminiranih smjesa krutina-tekućina, gdje su poželjne kontaminirane suspenzije vlakana, a naročito je poželjna suspenzija od papirnih vlakana, koji obuhvaća korake: • dovođenje tekućine, gdje je poželjna voda, u Venturijev element za miješanje (5) sa svojstvima navedenim u zahtjevu 1, • dovođenje plina, po mogućnosti zraka, u Venturijev element za miješanje (5), • obogaćivanje tekućine mjehurićima plina u Venturijevom elementu za miješanje (5) na način da tekućina prolazi, kao struja tekućine, komoru (9), smještenu u elementu za miješanje (5), u koji se dovodi plin, • dovođenje tekućine obogaćene mjehurićima plina u kontaminiranu smjesu krutina-tekućina, pri čemu tekućina obogaćena mjehurićima plina ima veću brzinu strujanja od smjese krutina-tekućina, • miješanje tekućine obogaćene mjehurićima plina zajedno sa smjesom krutina-tekućina, pri čemu se nečistoće i kontaminanti odvajaju od krutine u smjesi krutina-tekućina kinetičkom energijom mjehurića plina i nakupljaju na mjehurićima plina, pri čemu mjehurići plina naknadno uklanjanju nečistoće i kontaminante iz smjese krutina-tekućina kao pjena, i • odvajanje smjese krutina-tekućina i pjene u naknadnom procesu flotacije.
6. Postupak prema patentnom zahtjevu 5, naznačen time što je tekućina obogaćena s mjehurićima plina tako da tekućina obogaćena s mjehurićima plina ima omjer plina prema tekućini od 1-4:1, pri čemu je poželjno 1:1.
7. Postupak prema patentnim zahtjevima 5 do 6, naznačen time što tekućina u prvom cjevovodu (2) struji brzinom strujanja od 1 m/s do 5 m/s.
8. Postupak prema patentnim zahtjevima 5 do 7, naznačen time što smjesa krutina-tekućina u drugom cjevovodu (3) struji brzinom strujanja od < 4 m/s.
9. Postupak prema patentnim zahtjevima 5 do 8, naznačen time što tekućina obogaćena mjehurićima plina struji nizvodno od Venturijevog elementa za miješanje (5) s brzinom strujanja od 5-40 m/s, poželjno 5-25 m/s, pri čemu prednost ima 9-25 m/s.
10. Uporaba uređaja u skladu s jednim od patentnih zahtjeva 1 do 4 i postupak prema jednom od patentnih zahtjeva 5 do 9 naznačen time što je za čišćenje kontaminirane smjese krutina-tekućina.
HRP20201255TT 2014-08-22 2015-08-14 Postupak i uređaj za čišćenje suspenzija vlakana pomoću flotacije HRP20201255T1 (hr)

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
PCT/DE2015/000408 WO2016026477A1 (de) 2014-08-22 2015-08-14 Verfahren und vorrichtung zur reinigung fasertoffsupensionen mittels flotation
EP15784553.8A EP3183052B1 (de) 2014-08-22 2015-08-14 Verfahren und vorrichtung zur reinigung von faserstoffsuspensionen mittels flotation

Publications (1)

Publication Number Publication Date
HRP20201255T1 true HRP20201255T1 (hr) 2020-11-13

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ID=54347452

Family Applications (1)

Application Number Title Priority Date Filing Date
HRP20201255TT HRP20201255T1 (hr) 2014-08-22 2015-08-14 Postupak i uređaj za čišćenje suspenzija vlakana pomoću flotacije

Country Status (11)

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

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Also Published As

Publication number Publication date
HUE051667T2 (hu) 2021-03-29
EP3183052B1 (de) 2020-06-03
EP3183052A1 (de) 2017-06-28
ES2812755T3 (es) 2021-03-18
CA2958823A1 (en) 2016-02-25
WO2016026477A1 (de) 2016-02-25
US10799885B2 (en) 2020-10-13
DE102014012666A1 (de) 2016-02-25
JP6782697B2 (ja) 2020-11-11
JP2017525565A (ja) 2017-09-07
DE102014012666B4 (de) 2016-07-21
PL3183052T3 (pl) 2020-12-14
PT3183052T (pt) 2020-09-07
CA2958823C (en) 2019-08-20
US20170225176A1 (en) 2017-08-10

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