FI831093L - INJECTOR FOR FLOTATIONSAPPARATER - Google Patents
INJECTOR FOR FLOTATIONSAPPARATERInfo
- Publication number
- FI831093L FI831093L FI831093A FI831093A FI831093L FI 831093 L FI831093 L FI 831093L FI 831093 A FI831093 A FI 831093A FI 831093 A FI831093 A FI 831093A FI 831093 L FI831093 L FI 831093L
- Authority
- FI
- Finland
- Prior art keywords
- constriction
- injector
- mixing section
- centrally
- flotationsapparater
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1278—Provisions for mixing or aeration of the mixed liquor
- C02F3/1294—"Venturi" aeration means
-
- 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
- B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
-
- 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
- B01F25/31241—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 the main flow being injected in the circumferential area of the venturi, creating an aspiration in the central part of the conduit
-
- 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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
-
- 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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
- B01F25/4335—Mixers with a converging-diverging cross-section
-
- 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
- B03D1/1418—Flotation machines using centrifugal forces
-
- 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
-
- 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
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Biotechnology (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Microbiology (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Nozzles (AREA)
- Fish Paste Products (AREA)
- Paper (AREA)
- Cyclones (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
1. Flotation apparatus having an injector serving to introduce a mixture of gas and fluid into the flotation apparatus, the injector having a constriction and a mixing section (5) behind this and also a gas intake guided centrally into the constriction, characterised by the following features of the injector : a) the constriction (3, 4) widens abruptly towards the mixing section (5), b) the centrally guided gas intake (6) ends a short distance behind the constriction (3, 4) in the mixing section (5), c) the mixing section (5) has a second constriction (7) widening like a diffusor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3211906 | 1982-03-31 | ||
DE3211906A DE3211906C1 (en) | 1982-03-31 | 1982-03-31 | Flotation apparatus injector |
Publications (4)
Publication Number | Publication Date |
---|---|
FI831093A0 FI831093A0 (en) | 1983-03-30 |
FI831093L true FI831093L (en) | 1983-10-01 |
FI69968B FI69968B (en) | 1986-01-31 |
FI69968C FI69968C (en) | 1986-09-12 |
Family
ID=6159837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI831093A FI69968C (en) | 1982-03-31 | 1983-03-30 | INJECTOR FOR FLOTATIONSAPPARATER |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0090234B1 (en) |
JP (1) | JPS58170557A (en) |
AT (1) | ATE29973T1 (en) |
BR (1) | BR8301765A (en) |
DE (2) | DE3211906C1 (en) |
ES (1) | ES279886Y (en) |
FI (1) | FI69968C (en) |
NO (1) | NO158998C (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH658481A5 (en) * | 1983-02-18 | 1986-11-14 | Escher Wyss Gmbh | FLOTATION DEVICE FOR FLOTING FIBER FIBER SUSPENSION MADE FROM WASTE PAPER. |
AT387407B (en) * | 1984-01-09 | 1989-01-25 | Escher Wyss Gmbh | FLOTATION DEVICE FOR FLOTING FIBER FIBER SUSPENSION MADE FROM WASTE PAPER |
DE3401161A1 (en) * | 1984-01-14 | 1985-11-21 | Sulzer-Escher Wyss GmbH, 7980 Ravensburg | Flotation device for the floatation of a fibre material suspension obtained from wastepaper |
CH665962A5 (en) * | 1985-07-19 | 1988-06-30 | Escher Wyss Gmbh | GASIFICATION DEVICE FOR A FLOTATION DEVICE AND ITS USE. |
DE3526576A1 (en) * | 1985-07-25 | 1987-02-05 | Voith Gmbh J M | LARGE FLOTATION CONTAINER |
US4952308A (en) * | 1986-12-10 | 1990-08-28 | Beloit Corporation | Pressurized flotation module and method for pressurized foam separation |
US5022984A (en) * | 1990-02-28 | 1991-06-11 | The Black Clawson Company | Froth flotation apparatus and method |
EP2572778B1 (en) | 2011-09-23 | 2017-03-08 | Primetals Technologies Germany GmbH | Flotation machine with dispenser nozzle and method for its operation |
CN105636679A (en) * | 2013-10-23 | 2016-06-01 | 地球再净化株式会社 | Microbubble generating device and contaminated water purifying system provided with microbubble generating device |
CN112359626A (en) * | 2020-11-13 | 2021-02-12 | 郑州磊展科技造纸机械有限公司 | Pulp-feeding non-blocking jet flow distributor for flotation deinking machine |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR998240A (en) * | 1949-09-02 | 1952-01-16 | Kloeckner Humboldt Deutz Ag | Method and device for the preparation of minerals |
DE1158461B (en) * | 1962-07-28 | 1963-12-05 | Beteiligungs & Patentverw Gmbh | Cyclone for the flotative processing of fine-grained mineral mixtures |
US3243046A (en) * | 1962-12-01 | 1966-03-29 | Ebara Infilco | Floatation apparatus |
GB1123446A (en) * | 1965-05-17 | 1968-08-14 | Zinc Corp Ltd | Method and apparatus for froth flotation |
GB1144463A (en) * | 1965-09-28 | 1969-03-05 | Licencia Talalmanyokat | Flotation equipment |
US4098851A (en) * | 1974-02-20 | 1978-07-04 | Erdolchemie Gesellschaft Mit Beschrankter Haftung | Device for mixing gases and liquids |
CH581493A5 (en) * | 1974-06-24 | 1976-11-15 | Escher Wyss Ag | Static mixer for in line mixing - having sudden expansion with secondary fluid injection just prior to it |
FR2315988A1 (en) * | 1975-06-30 | 1977-01-28 | Saint Gobain Techn Nouvelles | IMPROVEMENT ON FLOTATION CELLS FOR THE TREATMENT OF URBAN AND INDUSTRIAL EFFLUENTS |
CH598407A5 (en) * | 1975-09-30 | 1978-04-28 | Escher Wyss Gmbh | |
DE2634494C2 (en) * | 1976-07-31 | 1983-04-14 | Bayer Ag, 5090 Leverkusen | New injectors for liquid gassing |
DE2634496C2 (en) * | 1976-07-31 | 1985-10-17 | Bayer Ag, 5090 Leverkusen | Injector for gassing a liquid |
NL7609275A (en) * | 1976-08-20 | 1978-02-22 | Envirotech Corp | Flotation process with low turbulence level - pumps two ingredient medium into fluid with density and kinetic energy within set limits |
DE2700049C3 (en) * | 1977-01-03 | 1980-10-02 | Oskar Werner Dipl.-Ing. 6463 Freigericht Pawel | Flotation plant |
CH629267A5 (en) * | 1978-05-30 | 1982-04-15 | Escher Wyss Gmbh | MATERIAL DRAIN DEVICE FOR A PAPER MACHINE. |
FR2484862B1 (en) * | 1980-06-18 | 1984-09-14 | Inst Nat Rech Chimique | PROCESS AND DEVICE FOR TRANSFERRING GAS IN A LIQUID APPLICABLE IN PARTICULAR TO WATER TREATMENT, BIOTECHNOLOGY AND THE CHEMICAL INDUSTRY |
DE3127290C2 (en) * | 1981-07-10 | 1986-10-30 | J.M. Voith Gmbh, 7920 Heidenheim | Flotation device for processing waste paper |
-
1982
- 1982-03-31 DE DE3211906A patent/DE3211906C1/en not_active Expired
-
1983
- 1983-03-12 EP EP83102465A patent/EP0090234B1/en not_active Expired
- 1983-03-12 DE DE8383102465T patent/DE3373876D1/en not_active Expired
- 1983-03-12 AT AT83102465T patent/ATE29973T1/en active
- 1983-03-25 JP JP58049033A patent/JPS58170557A/en active Pending
- 1983-03-29 ES ES1983279886U patent/ES279886Y/en not_active Expired
- 1983-03-29 NO NO831167A patent/NO158998C/en unknown
- 1983-03-30 FI FI831093A patent/FI69968C/en not_active IP Right Cessation
- 1983-04-04 BR BR8301765A patent/BR8301765A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO158998C (en) | 1988-11-23 |
EP0090234A3 (en) | 1985-06-26 |
FI69968C (en) | 1986-09-12 |
ES279886Y (en) | 1985-06-01 |
BR8301765A (en) | 1983-12-13 |
DE3211906C1 (en) | 1988-12-01 |
DE3373876D1 (en) | 1987-11-05 |
ES279886U (en) | 1984-11-16 |
NO158998B (en) | 1988-08-15 |
JPS58170557A (en) | 1983-10-07 |
FI831093A0 (en) | 1983-03-30 |
ATE29973T1 (en) | 1987-10-15 |
EP0090234B1 (en) | 1987-09-30 |
NO831167L (en) | 1983-10-03 |
EP0090234A2 (en) | 1983-10-05 |
FI69968B (en) | 1986-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: J. M. VOITH GMBH |