FI941674A - Process for forming gas bubbles in a liquid and apparatus for carrying out the process - Google Patents
Process for forming gas bubbles in a liquid and apparatus for carrying out the process Download PDFInfo
- Publication number
- FI941674A FI941674A FI941674A FI941674A FI941674A FI 941674 A FI941674 A FI 941674A FI 941674 A FI941674 A FI 941674A FI 941674 A FI941674 A FI 941674A FI 941674 A FI941674 A FI 941674A
- Authority
- FI
- Finland
- Prior art keywords
- liquid
- dispersion
- gas
- gas bubbles
- space
- Prior art date
Links
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
- B03D1/1431—Dissolved air flotation machines
-
- 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
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
- B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
-
- 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
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
-
- 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
-
- 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
-
- 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
- B01F25/31242—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 central area of the venturi, creating an aspiration in the circumferential part of the conduit
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
-
- 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
- B03D1/028—Control and monitoring of flotation processes; computer models therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention relates to a method and an apparatus for generating gas bubbles in a liquid, in which method gas and liquid are taken into a dispersion space (2) situated inside a dispersion nozzle device (1), and at least a portion of the dispersion operation is carried out in the dispersion space and in a discharge channel (3) exiting thereof using liquid-gas-liquid dispersion. In the method and apparatus according to the invention, flexible and accurate control of gas bubble size is achieved through altering the length (A) of the dispersion space (2) with the help of an adjuster means (4; 5; 10), or alternatively, through altering simultaneously the length (A) of the dispersion space (2) and the size of the gas infeed opening (12) to the dispersion space with the help of the adjuster means (4; 5; 10).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI941674A FI941674A (en) | 1994-04-12 | 1994-04-12 | Process for forming gas bubbles in a liquid and apparatus for carrying out the process |
PCT/FI1995/000209 WO1995027557A1 (en) | 1994-04-12 | 1995-04-12 | Method of generating gas bubbles in a liquid and apparatus for the implementation of the method |
AU22595/95A AU2259595A (en) | 1994-04-12 | 1995-04-12 | Method of generating gas bubbles in a liquid and apparatus for the implementation of the method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI941674A FI941674A (en) | 1994-04-12 | 1994-04-12 | Process for forming gas bubbles in a liquid and apparatus for carrying out the process |
Publications (2)
Publication Number | Publication Date |
---|---|
FI941674A0 FI941674A0 (en) | 1994-04-12 |
FI941674A true FI941674A (en) | 1995-10-13 |
Family
ID=8540497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI941674A FI941674A (en) | 1994-04-12 | 1994-04-12 | Process for forming gas bubbles in a liquid and apparatus for carrying out the process |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2259595A (en) |
FI (1) | FI941674A (en) |
WO (1) | WO1995027557A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996025362A1 (en) * | 1995-02-17 | 1996-08-22 | Ahlstrom Aquaflow Oy | Pressurized water flotation apparatus |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012209342A1 (en) * | 2012-06-04 | 2013-12-05 | Siemens Aktiengesellschaft | Method of adjusting the geometry of a dispersing nozzle |
JP6317505B1 (en) | 2017-04-24 | 2018-04-25 | 有限会社ベイクルーズ | Jet injection device |
CN108339673B (en) * | 2018-02-10 | 2023-11-21 | 内蒙古科灵时代矿业技术有限公司 | Cavitation jet flow flotation bubble generator and flotation device |
CN108404700B (en) * | 2018-03-14 | 2021-08-10 | 厦门大学 | Airlift type rotary circulation mixing device without inner guide cylinder |
CN113348037A (en) * | 2019-01-25 | 2021-09-03 | Fl史密斯公司 | Apparatus and method for uniformly introducing air into fluidized bed separator |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH084731B2 (en) * | 1985-10-11 | 1996-01-24 | 三菱レイヨン・エンジニアリング株式会社 | Gas-liquid mixing device |
HU197277B (en) * | 1986-07-03 | 1989-03-28 | Vizgazdalkodasi Tudomanyos Kut | Equipment for introduction of gases into liquids, primarily for airing of sewages |
US5344563A (en) * | 1993-06-01 | 1994-09-06 | Noyes Daniel G | Wastewater treatment system |
-
1994
- 1994-04-12 FI FI941674A patent/FI941674A/en not_active Application Discontinuation
-
1995
- 1995-04-12 AU AU22595/95A patent/AU2259595A/en not_active Abandoned
- 1995-04-12 WO PCT/FI1995/000209 patent/WO1995027557A1/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996025362A1 (en) * | 1995-02-17 | 1996-08-22 | Ahlstrom Aquaflow Oy | Pressurized water flotation apparatus |
Also Published As
Publication number | Publication date |
---|---|
WO1995027557A1 (en) | 1995-10-19 |
AU2259595A (en) | 1995-10-30 |
FI941674A0 (en) | 1994-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |