WO1996033006A1 - Mixing - Google Patents
Mixing Download PDFInfo
- Publication number
- WO1996033006A1 WO1996033006A1 PCT/FI1996/000215 FI9600215W WO9633006A1 WO 1996033006 A1 WO1996033006 A1 WO 1996033006A1 FI 9600215 W FI9600215 W FI 9600215W WO 9633006 A1 WO9633006 A1 WO 9633006A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mixing
- gas
- liquid
- nozzle opening
- cross
- Prior art date
Links
Classifications
-
- 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
- B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
Definitions
- the invention can be used, for example, in froth flotation of ores for the forming of bubbles and for the maintaining of a slurry suspension.
- the invention is highly applicable also to the aeration of waste water tanks and watercourses.
- Various dissolving processes requiring the adding of a gas are also typical areas of use for the invention.
- the mineral slurry froth-flotation apparatus has a container 11 and, inside it, a gas-mixing reactor 12 of the type described above. Slurry is introduced into the container from the upper end via a feed pipe 13. At the lowest point of the reactor bottom 14 there is connected a recycling pipe 15, through which slurry which has settled on the bottom is directed by means of a pump 16 to the feed pipe 8 of the mixing reactor. Air via connection 17 is also fed into the feed pipe.
- the overpressure prevailing in the feed pipe is, for example, 1-2 bar. In the reactor, air becomes mixed with the slurry and partly dissolved therein. A large quantity of micro- bubbles are formed in the mixture emerging from the reactor.
- Hydrophobic mineral particles from the slurry adhere to the surfaces of the bubbles.
- the bubbles rise to the surface of the container as a froth, which is recovered for further treatment.
- the process is dimensioned so that the bubbles will have time to separate from the slurry as completely as possible before the slurry flows into the recycling pipe.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Water Treatments (AREA)
- Led Devices (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/930,711 US6019497A (en) | 1995-04-20 | 1995-08-03 | Mixing |
AU54008/96A AU700212B2 (en) | 1995-04-20 | 1996-04-19 | Mixing |
EP96910983A EP0822858B1 (en) | 1995-04-20 | 1996-04-19 | Mixing |
DE69621795T DE69621795T2 (en) | 1995-04-20 | 1996-04-19 | MIX |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI951881 | 1995-04-20 | ||
FI951881A FI98053C (en) | 1995-04-20 | 1995-04-20 | Blend |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996033006A1 true WO1996033006A1 (en) | 1996-10-24 |
Family
ID=8543272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI1996/000215 WO1996033006A1 (en) | 1995-04-20 | 1996-04-19 | Mixing |
Country Status (9)
Country | Link |
---|---|
US (1) | US6019497A (en) |
EP (1) | EP0822858B1 (en) |
AU (1) | AU700212B2 (en) |
CA (1) | CA2221714A1 (en) |
DE (1) | DE69621795T2 (en) |
ES (1) | ES2177778T3 (en) |
FI (1) | FI98053C (en) |
PT (1) | PT822858E (en) |
WO (1) | WO1996033006A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPO887597A0 (en) * | 1997-08-29 | 1997-09-25 | Separation Technologies Group Pty Ltd | Mixing apparatus |
WO2008127533A1 (en) * | 2007-04-13 | 2008-10-23 | Freeman Energy Corporation | Biomass cultivation system and corresponding method of operation |
WO2018190298A1 (en) * | 2017-04-10 | 2018-10-18 | オオノ開發株式会社 | Stirring container, mixing device, and mixed fluid production method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1115288A (en) * | 1965-06-14 | 1968-05-29 | Equipment Engineers Inc | Methods and apparatus for effecting dispersions of gas in liquid materials |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL77063C (en) * | 1951-11-30 | |||
US3131037A (en) * | 1959-06-29 | 1964-04-28 | Stora Kopparbergs Bergslags Ab | Oil gasifier |
US3775314A (en) * | 1971-06-07 | 1973-11-27 | Water Treatment Corp | Method and apparatus for mixing gases with water |
JPS5117145B2 (en) * | 1971-09-10 | 1976-05-31 | ||
US4014961A (en) * | 1973-04-24 | 1977-03-29 | Vitaly Fedorovich Popov | Ejector mixer for gases and/or liquids |
SU685806A1 (en) * | 1978-05-31 | 1979-09-15 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Буровой Техники | Apparatus for preparing aerated drilling and cementing muds |
US4215081A (en) * | 1979-01-24 | 1980-07-29 | Brooks Kirtland H | Liquid aerator |
US4415275A (en) * | 1981-12-21 | 1983-11-15 | Dietrich David E | Swirl mixing device |
US4398827A (en) * | 1980-11-10 | 1983-08-16 | Dietrich David E | Swirl mixing device |
JPS6038028A (en) * | 1983-08-08 | 1985-02-27 | Isobe Shigeo | Instantaneous mixing method of particulate material and liquid |
FR2587915B1 (en) * | 1985-09-27 | 1987-11-27 | Omya Sa | DEVICE FOR CONTACTING FLUIDS IN THE FORM OF DIFFERENT PHASES |
US4688945A (en) * | 1985-10-02 | 1987-08-25 | Stranco, Inc. | Mixing apparatus |
CA2114294A1 (en) * | 1993-01-05 | 1995-07-27 | Thomas Earle Allen | Apparatus and method for continuously mixing fluids |
SE504247C2 (en) * | 1994-03-24 | 1996-12-16 | Gaevle Galvan Tryckkaerl Ab | Vessels for treating fluid |
-
1995
- 1995-04-20 FI FI951881A patent/FI98053C/en active IP Right Grant
- 1995-08-03 US US08/930,711 patent/US6019497A/en not_active Expired - Fee Related
-
1996
- 1996-04-19 DE DE69621795T patent/DE69621795T2/en not_active Expired - Fee Related
- 1996-04-19 WO PCT/FI1996/000215 patent/WO1996033006A1/en active IP Right Grant
- 1996-04-19 ES ES96910983T patent/ES2177778T3/en not_active Expired - Lifetime
- 1996-04-19 EP EP96910983A patent/EP0822858B1/en not_active Expired - Lifetime
- 1996-04-19 PT PT96910983T patent/PT822858E/en unknown
- 1996-04-19 AU AU54008/96A patent/AU700212B2/en not_active Ceased
- 1996-04-19 CA CA002221714A patent/CA2221714A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1115288A (en) * | 1965-06-14 | 1968-05-29 | Equipment Engineers Inc | Methods and apparatus for effecting dispersions of gas in liquid materials |
Also Published As
Publication number | Publication date |
---|---|
PT822858E (en) | 2002-11-29 |
DE69621795T2 (en) | 2003-02-20 |
US6019497A (en) | 2000-02-01 |
EP0822858B1 (en) | 2002-06-12 |
AU700212B2 (en) | 1998-12-24 |
FI98053C (en) | 1997-04-10 |
DE69621795D1 (en) | 2002-07-18 |
FI951881A (en) | 1996-10-21 |
CA2221714A1 (en) | 1996-10-24 |
FI951881A0 (en) | 1995-04-20 |
EP0822858A1 (en) | 1998-02-11 |
AU5400896A (en) | 1996-11-07 |
FI98053B (en) | 1996-12-31 |
ES2177778T3 (en) | 2002-12-16 |
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