WO1994021365A3 - Mixing device for gases and liquids - Google Patents
Mixing device for gases and liquids Download PDFInfo
- Publication number
- WO1994021365A3 WO1994021365A3 PCT/EP1994/000751 EP9400751W WO9421365A3 WO 1994021365 A3 WO1994021365 A3 WO 1994021365A3 EP 9400751 W EP9400751 W EP 9400751W WO 9421365 A3 WO9421365 A3 WO 9421365A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquids
- gases
- mixing device
- feed tube
- outer side
- 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
- 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
- B01F23/23312—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 conduit surrounding the 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
- B01F23/2331—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
- B01F23/2336—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
- B01F23/23363—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 above the stirrer
-
- 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
- B01F27/113—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
- B01F27/1132—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller with guiding tubes or tubular segments fixed to and surrounding the tips of the propeller blades, e.g. for supplementary mixing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
A mixing device for gases and liquids has a feed tube (3) open both above and below the liquid level. Below the feed tube is located a turbo-stirring member (8) driven by means of an axial shaft (4). The inner stirring blades of the stirring member (8) are surrounded by a ring (10) which turns together with them. On the outer side of the ring (10) are mounted further axial blades (9) which also convey the gases and liquids in the axial direction. In order to generate appropriately divided swirls while improving gas feed, the feed tube (3) may be provided on its outer side with flow-disturbing baffles (11) arranged in a star configuration. This mixing device, suitable for example in waste water treatment plants for aerating the water, as well as for high-pressure reactors, allows gas feed to be substantially increased with an optimum gas bubble distribution. Solids may also be fed therewith and are remarkably well suspended.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4307925A DE4307925A1 (en) | 1993-03-12 | 1993-03-12 | Device for mixing gases and liquids |
DEP4307925.3 | 1993-03-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1994021365A2 WO1994021365A2 (en) | 1994-09-29 |
WO1994021365A3 true WO1994021365A3 (en) | 1994-11-24 |
Family
ID=6482657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/000751 WO1994021365A2 (en) | 1993-03-12 | 1994-03-10 | Mixing device for gases and liquids |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE4307925A1 (en) |
WO (1) | WO1994021365A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101663246B1 (en) * | 2016-01-29 | 2016-10-06 | 고려대학교 산학협력단 | Contra-rotating multi-layer propeller unit for multi-phase flow |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE369362C (en) * | 1923-02-17 | Maschf | Agitators, especially for oil refining | |
DE402373C (en) * | 1923-12-20 | 1924-09-15 | Heinrich Hass G M B H | Machine for refining cocoa, chocolate and similar masses |
DE1181673B (en) * | 1960-06-24 | 1964-11-19 | Thaelmann Schwermaschbau Veb | Device for aerating a liquid |
DE2310319A1 (en) * | 1972-03-03 | 1973-09-13 | Vogelbusch Gmbh | Liq aerating rotor - esp for microorganism culture |
DE2415813A1 (en) * | 1974-04-01 | 1975-10-16 | Heinz Mueller | Agitator with gas entrainment - having annular duct around shaft leading from gas supply to impeller |
FR2383697A1 (en) * | 1977-03-17 | 1978-10-13 | Delbergue Martial | Cattle food mixer for powdered prods. - with helical stirrer producing vortex in tunnel to ensure intimate mixing |
SU997770A1 (en) * | 1981-07-30 | 1983-02-23 | Центральный Научно-Исследовательский Институт Механизации И Электрификации Сельского Хозяйства Нечерноземной Зоны Ссср | Turbine ajitator |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1186422B (en) * | 1963-02-21 | 1965-02-04 | Kloeckner Humboldt Deutz Ag | Agitator flotation cell |
GB1022284A (en) * | 1963-04-04 | 1966-03-09 | Ames Crosta Mills & Company Lt | Improvements in or relating to the surface aeration of liquids |
-
1993
- 1993-03-12 DE DE4307925A patent/DE4307925A1/en not_active Withdrawn
-
1994
- 1994-03-10 WO PCT/EP1994/000751 patent/WO1994021365A2/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE369362C (en) * | 1923-02-17 | Maschf | Agitators, especially for oil refining | |
DE402373C (en) * | 1923-12-20 | 1924-09-15 | Heinrich Hass G M B H | Machine for refining cocoa, chocolate and similar masses |
DE1181673B (en) * | 1960-06-24 | 1964-11-19 | Thaelmann Schwermaschbau Veb | Device for aerating a liquid |
DE2310319A1 (en) * | 1972-03-03 | 1973-09-13 | Vogelbusch Gmbh | Liq aerating rotor - esp for microorganism culture |
DE2415813A1 (en) * | 1974-04-01 | 1975-10-16 | Heinz Mueller | Agitator with gas entrainment - having annular duct around shaft leading from gas supply to impeller |
FR2383697A1 (en) * | 1977-03-17 | 1978-10-13 | Delbergue Martial | Cattle food mixer for powdered prods. - with helical stirrer producing vortex in tunnel to ensure intimate mixing |
SU997770A1 (en) * | 1981-07-30 | 1983-02-23 | Центральный Научно-Исследовательский Институт Механизации И Электрификации Сельского Хозяйства Нечерноземной Зоны Ссср | Turbine ajitator |
Non-Patent Citations (1)
Title |
---|
SOVIET INVENTIONS ILLUSTRATED Section Ch Week K50, 1 February 1984 Derwent World Patents Index; Class J02, AN 83-843525 * |
Also Published As
Publication number | Publication date |
---|---|
DE4307925A1 (en) | 1994-09-22 |
WO1994021365A2 (en) | 1994-09-29 |
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