GB1465801A - Process and device for dispersing gas into a liquid - Google Patents
Process and device for dispersing gas into a liquidInfo
- Publication number
- GB1465801A GB1465801A GB2448074A GB2448074A GB1465801A GB 1465801 A GB1465801 A GB 1465801A GB 2448074 A GB2448074 A GB 2448074A GB 2448074 A GB2448074 A GB 2448074A GB 1465801 A GB1465801 A GB 1465801A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- gas
- liquid
- stator
- increase
- 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.)
- Expired
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
- B03D1/16—Flotation machines with impellers; Subaeration 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
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer axis
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2334—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer
- B01F23/23342—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer the stirrer being of the centrifugal type, e.g. with a surrounding stator
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2336—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
- B01F23/23364—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced between the stirrer elements
-
- 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
- B03D1/1493—Flotation machines with means for establishing a specified flow pattern
-
- 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
- B03D1/245—Injecting gas through perforated or porous area
-
- 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
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/111—Centrifugal stirrers, i.e. stirrers with radial outlets; Stirrers of the turbine type, e.g. with means to guide the flow
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Physical Water Treatments (AREA)
- Centrifugal Separators (AREA)
Abstract
1465801 Dispersing gases in liquids; froth flotation apparatus OUTOKUMPU OY 3 June 1974 [5 June 1973] 24480/74 Heading B1C and B2X In a method of dispersing a gas in a liquid or slurry, (e.g. for froth flotation) by means of a rotor within a stator, the increase in hydrostatic pressure with increasing depth is compensated by a hydraulic pressure correspondingly changing with depth in order to keep the total liquid pressure substantially constant over the surface over which the gas is dispersed; this is done by arranging for the ring of liquid between the rotor and stator to increase in thickness with depth so that the centrifugal force acting on the liquid ring produces the compensating dynamic pressure. As shown in Fig. 1 gas is supplied through a hollow shaft and dispersed through passages 5 between which are "grooves" 8 through which the slurry circulates; the envelope of the rotor is cylindrical while the stator is shaped so that the clearance between them increases downwardly. In other embodiments the rotor may narrow downwardly while the inner envelope of the stator is cylindrical, or both may increase in diameter downwardly with increasing clearance (Figs. 4-7, not shown). In Fig. 1 the "grooves" 8 are closed at the bottom, but they may be open at both ends or shrouded at the top (see Figs. 2 and 3, not shown). The gas passages 5 in the rotor may be omitted (Fig. 8, not shown) and the gas introduced above the rotor through a downcover surrounding the rotor shaft (Fig. 12, not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI1823/73A FI55124C (en) | 1973-06-05 | 1973-06-05 | PROCEDURE FOR THE DISCUSSION OF WASTE AND ENVIRONMENT |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1465801A true GB1465801A (en) | 1977-03-02 |
Family
ID=8506249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2448074A Expired GB1465801A (en) | 1973-06-05 | 1974-06-03 | Process and device for dispersing gas into a liquid |
Country Status (19)
Country | Link |
---|---|
JP (1) | JPS5738290B2 (en) |
BE (1) | BE815783A (en) |
BG (1) | BG30171A3 (en) |
CA (1) | CA1030280A (en) |
CS (1) | CS193032B2 (en) |
DD (1) | DD114756A5 (en) |
DE (1) | DE2425959C2 (en) |
ES (1) | ES426886A1 (en) |
FI (1) | FI55124C (en) |
FR (1) | FR2232356B1 (en) |
GB (1) | GB1465801A (en) |
HU (1) | HU171323B (en) |
NO (1) | NO141501C (en) |
RO (1) | RO66332A (en) |
SE (1) | SE397166B (en) |
SU (1) | SU1072793A3 (en) |
YU (1) | YU36868B (en) |
ZA (1) | ZA743408B (en) |
ZM (1) | ZM8274A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0985444A1 (en) * | 1998-08-12 | 2000-03-15 | Linde Aktiengesellschaft | Process and apparatus for mixing products |
US11571638B2 (en) | 2017-08-15 | 2023-02-07 | Siemens Energy, Inc. | Methods and systems for enhanced dissolved gas floatation |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK532278A (en) | 1977-12-02 | 1979-06-03 | Nat Res Dev | APPLIANCE FOR VENTILATION OF A LIQUID |
NO142830C (en) * | 1978-02-28 | 1980-10-29 | Trondhjems Mek Verksted As | DEVICE FOR DISTRIBUTING A GAS IN A FLUID MEDIUM |
WO1990014880A1 (en) * | 1989-05-03 | 1990-12-13 | Ullrich, Manfred | Mixing device for fluids |
CN109127155A (en) * | 2018-09-21 | 2019-01-04 | 四川省川机工程技术有限公司 | A kind of agitation impeller flotator increasing ventilatory capacity |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE541188A (en) * | ||||
US2696913A (en) * | 1949-12-08 | 1954-12-14 | Charles M Anderson | Revolving current flotation machine |
US2928665A (en) * | 1950-09-27 | 1960-03-15 | American Instr Co Inc | Gas-liquid mixing apparatus |
DE879081C (en) * | 1951-02-23 | 1953-06-11 | Michael Philosophow | Agitator with air supply |
BE525439A (en) * | 1953-03-13 | |||
BE635852A (en) * | 1962-08-07 | |||
US3327851A (en) * | 1965-01-25 | 1967-06-27 | Galigher Company | Flotation machine and stator therefor |
-
1973
- 1973-06-05 FI FI1823/73A patent/FI55124C/en active
-
1974
- 1974-05-28 ZM ZM82/74A patent/ZM8274A1/en unknown
- 1974-05-28 ZA ZA00743408A patent/ZA743408B/en unknown
- 1974-05-30 DE DE2425959A patent/DE2425959C2/en not_active Expired
- 1974-05-31 BE BE144954A patent/BE815783A/en not_active IP Right Cessation
- 1974-06-03 ES ES426886A patent/ES426886A1/en not_active Expired
- 1974-06-03 HU HU74OU00000010A patent/HU171323B/en unknown
- 1974-06-03 GB GB2448074A patent/GB1465801A/en not_active Expired
- 1974-06-03 JP JP6195974A patent/JPS5738290B2/ja not_active Expired
- 1974-06-03 YU YU1551/74A patent/YU36868B/en unknown
- 1974-06-04 CA CA201,662A patent/CA1030280A/en not_active Expired
- 1974-06-04 SU SU742033196A patent/SU1072793A3/en active
- 1974-06-04 DD DD178943A patent/DD114756A5/xx unknown
- 1974-06-04 RO RO7479040A patent/RO66332A/en unknown
- 1974-06-04 SE SE7407330A patent/SE397166B/en not_active IP Right Cessation
- 1974-06-04 BG BG7426873A patent/BG30171A3/en unknown
- 1974-06-05 NO NO742035A patent/NO141501C/en unknown
- 1974-06-05 FR FR7419404A patent/FR2232356B1/fr not_active Expired
- 1974-06-05 CS CS743992A patent/CS193032B2/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0985444A1 (en) * | 1998-08-12 | 2000-03-15 | Linde Aktiengesellschaft | Process and apparatus for mixing products |
US11571638B2 (en) | 2017-08-15 | 2023-02-07 | Siemens Energy, Inc. | Methods and systems for enhanced dissolved gas floatation |
Also Published As
Publication number | Publication date |
---|---|
JPS50129406A (en) | 1975-10-13 |
SE397166B (en) | 1977-10-24 |
CA1030280A (en) | 1978-04-25 |
RO66332A (en) | 1980-07-15 |
FR2232356B1 (en) | 1978-01-13 |
JPS5738290B2 (en) | 1982-08-14 |
BE815783A (en) | 1974-09-16 |
AU6934074A (en) | 1975-11-27 |
FR2232356A1 (en) | 1975-01-03 |
YU36868B (en) | 1984-08-31 |
ZM8274A1 (en) | 1975-02-21 |
NO742035L (en) | 1974-12-06 |
NO141501C (en) | 1980-03-26 |
CS193032B2 (en) | 1979-09-17 |
SE7407330L (en) | 1974-12-06 |
DE2425959C2 (en) | 1981-10-22 |
DD114756A5 (en) | 1975-08-20 |
NO141501B (en) | 1979-12-17 |
ES426886A1 (en) | 1976-07-16 |
FI55124C (en) | 1979-06-11 |
FI182373A (en) | 1974-12-06 |
YU155174A (en) | 1982-06-18 |
ZA743408B (en) | 1975-06-25 |
FI55124B (en) | 1979-02-28 |
DE2425959A1 (en) | 1975-01-02 |
SU1072793A3 (en) | 1984-02-07 |
BG30171A3 (en) | 1981-04-15 |
HU171323B (en) | 1977-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19940602 |