EP0993862B1 - Selbstansaugende, rotierbare Dispergiervorrichtung - Google Patents
Selbstansaugende, rotierbare Dispergiervorrichtung Download PDFInfo
- Publication number
- EP0993862B1 EP0993862B1 EP99120397A EP99120397A EP0993862B1 EP 0993862 B1 EP0993862 B1 EP 0993862B1 EP 99120397 A EP99120397 A EP 99120397A EP 99120397 A EP99120397 A EP 99120397A EP 0993862 B1 EP0993862 B1 EP 0993862B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- dispersing device
- self
- aspirating
- hollow shaft
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 239000007789 gas Substances 0.000 claims description 110
- 230000001154 acute effect Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 8
- 238000013019 agitation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
-
- 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
-
- 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
- B01F27/15—Stirrers with tubes for guiding the material
-
- 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
- B01F23/2331—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
- B01F23/23314—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 element
-
- 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
- B01F23/2335—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 direction of introduction of the gas relative to the stirrer
- B01F23/23352—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 direction of introduction of the gas relative to the stirrer the gas moving perpendicular to the axis of rotation
-
- 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
- B01F23/2335—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 direction of introduction of the gas relative to the stirrer
- B01F23/23354—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 direction of introduction of the gas relative to the stirrer the gas being driven away from the rotating stirrer
Definitions
- the invention relates to a self-priming, rotatable dispersing device for gases and liquids or a self-priming two-phase turbine for the mixing of gases and liquids according to the preamble of patent claim 1.
- Such a self-priming, rotatable dispersing device of the aforementioned kind is known from GB 724791A.
- Two-phase turbines of other design For dispersing or self-priming Two-phase turbines of other design is the Gas intake via the rotationally driven hollow shaft and in the Interior of the turbine is also introduced liquid, so that the mixing of gas and liquid within of the turbine room.
- Such a self-priming Two-phase turbine works up to a phase ratio Gas / liquid of about 25/30% satisfactory. at larger phase ratios is the self-priming Two-phase turbine flooded and even at a speed increase is no higher power input possible, because the sucked gas remains at rest and a higher Mass transfer is no longer possible. Therefore, at one Such conventional self-priming two-phase turbine design-related the mass transfer through the given Phase ratio gas / liquid limited.
- the invention therefore aims at overcoming the previously described difficulties a powerful, Self-priming dispersing device for gases and To provide fluids or two-phase turbines, which a higher mass transfer at the lowest possible Performance / feed ratios and speed of the dispersing device allowed.
- this is a self-priming, Rotatable dispersing device for gases and liquids provided their features in claim 1 are indicated.
- self-priming rotatable Disperser are therefore multiple gas channels with the Hollow shaft connected via gas duct mouth openings allow a discharge of the gas to be dispersed.
- the gas duct mouth openings is due to the stall generates a negative pressure which allows the Gas from the gas space against the static liquid level is sucked in over the dispersing device. Consequently is a constant gas suction in the inventive Dispersing device independent of the phase ratio Gas / liquid due to the stall phenomenon ensures the gas channel opening.
- a cover plate provided, which axially to the rotationally driven Hollow shaft are spaced and between which in cooperation be formed with the gas channels, chambers.
- the the underside cover forms a closed and surface connected to the hollow shaft.
- the top-side Cover disc forms a liquid suction gap in cooperation with the outer surface of the hollow shaft. About this suction liquid is in the chambers between the two axially spaced cover plates and the outer surfaces of the gas channels initiated, the one intense agitation movement to enhance the mass transfer is granted.
- the dispersing device according to the Invention no restrictions by predetermined phase relationships Gas / liquid subjected.
- a very powerful and a high mass transfer realizing self-priming, rotating dispersing device or self-priming Two-phase turbine.
- the gas channels extend approximately radially to the hollow shaft.
- the gas channels under at an acute angle to the radial, which preferably in a range of greater than 0 and less than 25 ° is and in particular about 15 °.
- gas channels in the form of impellers be formed to thereby promote the fluid to intensify.
- the gas passages are formed with a curved course, so that they have a flow-favorable profiling with respect to an intensive fluid delivery.
- the radius of curvature here may be in a range from D 2/3 to 3D 2 , preferably approximately at approximately D 2/2 .
- D 2 denotes the largest diameter of the dispersing device, which is measured between the outer edges of two opposing gas channel discharge openings.
- the gas channels can have a cross-section, which starting from the hollow shaft to the gas channel mouth opening gets bigger. This allows the suction of Gas from the gas space due to the stall phenomenon and the resulting negative pressure in the gas channel system strengthen.
- each gas duct mouth opening is located in a plane at an acute angle to the gas channel wall, which is preferably in one area are from 30 ° to 60 ° and in particular about 50 °. This allows the mass transfer due to the enlarged Improve contact surfaces even further.
- rotating dispersing device are the gas channels arranged at regular angular intervals in the circumferential direction, to a possibly uniform in the circumferential direction To ensure thorough mixing of gas and liquid.
- the gas channel openings are opposite Directed the direction of rotation of the hollow shaft, so that the intensive mixing of gas and liquid at the outflow region of the gas channels takes place.
- FIG. 1 shows a perspective view of a self-priming rotating dispersing device, indicated as a whole by 1, or a self-priming two-phase turbine.
- the dispersing device 1 has a central hollow shaft 2, which is driven via a rotary drive not shown in the direction indicated by the arrow rotation direction.
- gas or gas to be dispersed is sucked.
- gas channels 3 With the limited by the hollow shaft 2 interior are a plurality of circumferentially preferably arranged at regular angular intervals gas channels 3 in communicating connection, which have gas duct openings 4, which are directed counter to the direction of rotation of the hollow shaft 2 in the illustrated example.
- a cover disk 5, 6 is respectively arranged in the dispersing device 1.
- the lower-side cover plate 6 forms a closed surface and is fixedly connected to the outer wall of the hollow shaft 2 and the corresponding outer surface of the gas channels 3.
- the upper-side cover plate 5 is formed as an annular body and surrounds the hollow shaft 2 concentrically and forms between the outer wall of the hollow shaft 2 an annular gap 7, which serves for remplisstechniksansaugung in between the two cover plates 5 and 6 and the gas channels 3 chambers 8.
- the cover plates 5 and 6 may be integrally connected to the gas channels 3 accordingly.
- the largest outer diameter of the dispersing device 1 is denoted by D 2 and is measured between the outer edges of two opposing gas channel mouths.
- the dispersing device 1 due to the stall at the gas channel orifices 4 generates a negative pressure, through which gas from the gas space and the gas channels 3 against the static liquid level is sucked in over the dispersing device 1.
- This sucked and to be dispersed gas is within the dispersing device 1 in a piping system without Mixing with liquid via the gas channel openings 4 discharged and there is a mixture of to dispersing gas and liquid outside the Dispersing device 1 in the area around the gas channel openings 4.
- the gas channels 3 effect during the rotational movement the hollow shaft 2 an intensive fluid delivery and agitation also in cooperation with the chambers 8.
- the gas channels 3 have a curved course and have a shape similar to a paddle.
- the radius of curvature is in a range E 2/3 to 3D 2, preferably at about D 2/2.
- Dispersing device 1 are essentially the basic construction elements consistent with the embodiment designed according to FIG. These parts will therefore be below not explained again, but only the differences compared to the embodiment of FIG 1. Essentially, only the gas channels 3 'have one of FIG 1 deviating embodiment.
- the gas channels 3 ' have a straight line and run under one acute angle ⁇ to the radial.
- This acute angle ⁇ is preferably in a range of greater than 0 and less than 25 ° and is preferably about 15 °.
- These gas channels 3 ' As in Figure 1 have a cross section, which starting from the hollow shaft 2 to the gas duct mouth opening 4 larger becomes.
- the opening cross section of each gas channel mouth opening 4 lies in a plane at an acute angle ⁇ to the gas channel wall, which preferably within a Angle range of 30 ° to 60 ° and in particular about 50 °.
- the dispersing device according to FIG. 3 also has FIG circumferentially arranged at regular angular intervals Gas channels 3 ", which similar to Figure 2 a straight course and have a cross section, which starting from the hollow shaft 2 to the gas channel mouth opening 4 gets bigger. Also, the opening cross section each gas channel-mouth opening 4 in a plane arranged at an acute angle ⁇ to the gas channel wall, which is preferably in a range of 30 ° to 60 ° is and is in particular about 50 °. In deviation from but the embodiment of Figure 2 run the Gas ducts 3 "approximately radially to the hollow shaft 2. Otherwise vote all further details of the shown in Figure 3 Dispersing device 1 substantially coincide with those which were explained in connection with Figure 1 before.
- FIG. 4 shows a further embodiment in the form of FIG a modification of the embodiment of the dispersing device 1 according to FIG. 3. Notwithstanding this in communicating in the hollow interior of the hollow shaft 2 in Compound gas channels 3 "'a substantially constant cross section over its entire course away from the hollow shaft 2 to the gas duct mouth opening 4. Otherwise, the gas channels 3 "'run also substantially radially to the hollow shaft 2 and each have an opening cross-section in the region of Gas duct mouth opening 4 in a plane below a acute angle ⁇ to the gas channel wall.
- combinations are different designed gas channels with correspondingly different Arrangement for hollow shaft possible, in particular also combined gradients of straight and curved in Consider as well as combinations with graduated extending cross sections of the gas channels.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Coating Apparatus (AREA)
- Dowels (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Catching Or Destruction (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
- Nozzles (AREA)
Description
- Fig. 1
- eine schematische perspektivische Ansicht einer ersten Ausführungsform einer selbstansaugenden, rotierenden Dispergiervorrichtung oder einer selbstansaugenden Zweiphasenturbine nach der Erfindung,
- Fig. 2
- eine schematische Draufsicht auf eine Ausführungsvariante einer Dispergiervorrichtung nach der Erfindung,
- Fig. 3
- eine schematische Draufsicht auf eine weitere Ausführungsvariante einer Dispergiervorrichtung nach der Erfindung, und
- Fig. 4
- eine schematische Draufsicht auf eine weitere Ausführungsform einer Dispergiervorrichtung nach der Erfindung.
Claims (9)
- Selbstansaugende, rotierbare Dispergiervorrichtung für Gase und Flüssigkeiten mit einer drehangetriebenen Hohlwelle (2) zur Gas-Gasansaugung, bei der das zu dispergierende Gas von der Hohlwelle (2) über hiermit in kommunizierender Verbindung stehende Gaskanäle (3, 3', 3", 3"') getrennt von der Flüssigkeit zu in Umfangsrichtung beabstandeten Gaskanal-Mündungsöffnungen (4) strömen kann, an welchen die Vermischung von Gas und Flüssigkeit außerhalb der Dispergiervorrichtung (1) erfolgen kann, und bei der oberseitig und unterseitig der Gaskanäle (3, 3', 3", 3"') eine Deckscheibe (5, 6) vorgesehen ist, dadurch gekennzeichnet, daß die oberseitige Deckscheibe (5) einen Flüssigkeitsansaugspalt (7) im Zusammenwirken mit der Außenfläche der Hohlwelle (2) bildet, die unterseitige Deckscheibe (6) eine geschlossene und mit der Außenfläche der Hohlwelle (2) verbundene Fläche bildet, und daß zwischen den beiden Deckscheiben (5, 6) und den Gaskälen (3, 3', 3", 3"') mit dem Flüssigkeitsansaugspalt (7) in Verbindung stehende Kammern (8) ausgebildet sind.
- Selbstansaugende, rotierbare Dispergiervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Gaskanäle (3", 3"') etwa radial zur Hohlwelle (2) verlaufen.
- Selbstansaugende rotierbare Dispergiervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Gaskanäle (3') unter einem spitzen Winkel (α) zur Radialen verlaufen, welcher vorzugsweise in einem Bereich von größer 0 und kleiner 25° liegt, und insbesondere etwa 15°, beträgt.
- Selbstansaugende, rotierbare Dispergiervorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Gaskanäle (3, 3',3", 3"') in Form von Rührflügeln ausgebildet sind.
- Selbstansaugende, rotierbare Dispergiervorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Gaskanäle (3) einen gekrümmten Verlauf haben.
- Selbstansaugende, rotierbare Dispergiervorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Krümmungsradius in einem Bereich von D2/3 bis 3D2, vorzugsweise bei etwa D2/2 liegt, wobei D2 der größte Durchmesser zwischen den Außenkanten von zwei gegenüberliegenden Gaskanalmündungsöffnungen ist.
- Selbstansaugende, rotierbare Dispergiervorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Gaskanäle (3, 3', 3") einen Querschnitt haben, welcher ausgehend von der Hohlwelle (2) zur Gaskanal-Mündungsöffnung (4) größer wird.
- Selbstansaugende, rotierbare Dispergiervorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Öffnungsquerschnitt jeder Gaskanal-Mündungsöffnung (4) in einer Ebene unter einem spitzen Winkel (β) zur Gaskanalwandung angeordnet ist, welcher vorzugsweise in einem Bereich von 30° bis 60° liegt, insbesondere etwa 50° beträgt.
- Selbstansaugende, rotierbare Dispergiervorrichtung nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Gaskanäle (3, 3', 3", 3"') in regelmäßigen Winkelabständen in Umfangsrichtung angeordnet sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29818255U | 1998-10-13 | ||
| DE29818255U DE29818255U1 (de) | 1998-10-13 | 1998-10-13 | Selbstansaugende, rotierende Dispergiervorrichtung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0993862A1 EP0993862A1 (de) | 2000-04-19 |
| EP0993862B1 true EP0993862B1 (de) | 2003-06-04 |
| EP0993862B2 EP0993862B2 (de) | 2006-12-27 |
Family
ID=8063844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99120397A Expired - Lifetime EP0993862B2 (de) | 1998-10-13 | 1999-10-13 | Selbstansaugende, rotierbare Dispergiervorrichtung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6394430B1 (de) |
| EP (1) | EP0993862B2 (de) |
| AT (1) | ATE242043T1 (de) |
| DE (2) | DE29818255U1 (de) |
| DK (1) | DK0993862T4 (de) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6568661B1 (en) * | 2001-05-03 | 2003-05-27 | Tomco2 Equipment Co. | Diffuser for use in a carbonic acid control system |
| US8056886B2 (en) * | 2007-01-02 | 2011-11-15 | Jet Inc. | Aspirator |
| JP5367567B2 (ja) * | 2007-05-18 | 2013-12-11 | 株式会社帝国電機製作所 | 分散攪拌機および分散槽 |
| JP5132243B2 (ja) * | 2007-10-17 | 2013-01-30 | 株式会社鶴見製作所 | 水中曝気装置 |
| US20090213684A1 (en) * | 2007-10-25 | 2009-08-27 | Midan Industries Ltd. | Apparatus for distribution of a gas into a body of liquid |
| US7997788B2 (en) * | 2007-10-25 | 2011-08-16 | Midan Industries Ltd. | Submersible mixing propeller |
| USD713861S1 (en) * | 2013-09-27 | 2014-09-23 | Rio Tinto Alcan International Limited | Impeller for a rotary injector |
| RU2016115269A (ru) | 2013-09-27 | 2017-11-01 | Рио Тинто Алкан Интернешенл Лимитед | Лопастное колесо двойного назначения для роторного инжектора |
| USD742427S1 (en) | 2013-09-27 | 2015-11-03 | Rio Tinto Alcan International Limited | Impeller for a rotary injector |
| USD823056S1 (en) * | 2016-11-21 | 2018-07-17 | Stephen Donaghy | Vegetable cutter blade |
| USD823059S1 (en) * | 2016-11-21 | 2018-07-17 | Stephen Donaghy | Vegetable cutter blade |
| USD823058S1 (en) * | 2016-11-21 | 2018-07-17 | Stephen Donaghy | Vegetable cutter blade |
| USD823057S1 (en) * | 2016-11-21 | 2018-07-17 | Stephen Donaghy | Vegetable cutter blade |
| USD823055S1 (en) * | 2016-11-21 | 2018-07-17 | Stephen Donaghy | Vegetable cutter blade |
| DE102019101934A1 (de) * | 2019-01-25 | 2020-07-30 | EKATO Rühr- und Mischtechnik GmbH | Rührorganvorrichtung |
| EP4094838A1 (de) * | 2021-05-28 | 2022-11-30 | Metso Outotec Finland Oy | Rotor einer gasdispersionsanordnung |
| CN114272806B (zh) * | 2022-01-04 | 2022-09-06 | 上海银鲨机器(集团)有限公司 | 一种具有定向筛分功能的双轴式桨叶混料机 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1526596A (en) * | 1922-06-09 | 1925-02-17 | William E Greenawalt | Apparatus for treating liquids with gases |
| US1579355A (en) * | 1923-06-11 | 1926-04-06 | William E Greenawalt | Apparatus for treating liquids with gases |
| GB724791A (en) * | 1952-02-02 | 1955-02-23 | Anton Enenkel | Apparatus for the aeration of liquids |
| BE525439A (de) * | 1953-03-13 | |||
| FR1361052A (fr) * | 1963-06-21 | 1964-05-15 | Prep Ind Combustibles | Procédé d'introduction de réactif dans une cellule de flottation par mousses |
| US3813086A (en) * | 1966-04-05 | 1974-05-28 | Frings H Fa | Device for aerating liquids |
| FR1504011A (fr) † | 1966-10-20 | 1967-12-01 | Venot Pic Sa | Dispositif de circulation et d'aération de fluides |
| US3776531A (en) * | 1972-03-16 | 1973-12-04 | M Ebner | Apparatus and propeller for entraining fluids in liquids |
| US3896027A (en) * | 1973-06-22 | 1975-07-22 | Kenneth A Digney | Method of treating sewage to enhance aerobic decomposition |
| JPS5232748A (en) * | 1976-09-13 | 1977-03-12 | Janome Sewing Machine Co Ltd | Buttonhole stitching unit operator for sewing machine |
| SU621383A1 (ru) * | 1977-03-05 | 1978-08-30 | Предприятие П/Я Р-6767 | Устройство дл аэрации и перемешивани пульпы |
| NO142830C (no) * | 1978-02-28 | 1980-10-29 | Trondhjems Mek Verksted As | Anordning for fordeling av en gass i et vaeskemedium |
| JPS55104637A (en) * | 1979-02-03 | 1980-08-11 | Iwao Ozaki | Self-sucking type bubble jet generator |
| CH645280A5 (de) * | 1979-06-01 | 1984-09-28 | Chemap Ag | Vorrichtung zur begasung einer fluessigkeit. |
| JPS60200923A (ja) * | 1984-03-23 | 1985-10-11 | Showa Alum Corp | 気泡の微細化分散装置 |
| FI81077C (fi) * | 1987-06-11 | 1990-09-10 | Outokumpu Oy | Luftningsanordning foer avfallsvatten fraon industri och bebyggelse. |
| US5013490A (en) * | 1988-10-21 | 1991-05-07 | Showa Aluminum Corporation | Device for releasing and diffusing bubbles into liquid |
| CH686874A5 (de) * | 1992-01-31 | 1996-07-31 | V Zug Ag | Vorrichtung zum Einbringen eines Gases in eine Fluessigkeit. |
| FI94317C (fi) * | 1992-10-16 | 1995-08-25 | Outokumpu Mintec Oy | Tapa ja laite kaasun dispergoimiseksi nesteeseen |
| FR2702159B1 (fr) * | 1993-03-05 | 1995-04-28 | Raymond Berchotteau | Appareil pour introduire et diffuser de l'air ou un gaz dans un liquide. |
| US5660766A (en) * | 1995-09-22 | 1997-08-26 | Van Dyek; Bernhard | Aerator |
-
1998
- 1998-10-13 DE DE29818255U patent/DE29818255U1/de not_active Expired - Lifetime
-
1999
- 1999-10-13 DE DE59905813T patent/DE59905813D1/de not_active Expired - Lifetime
- 1999-10-13 DK DK99120397T patent/DK0993862T4/da active
- 1999-10-13 AT AT99120397T patent/ATE242043T1/de not_active IP Right Cessation
- 1999-10-13 US US09/418,000 patent/US6394430B1/en not_active Expired - Lifetime
- 1999-10-13 EP EP99120397A patent/EP0993862B2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0993862B2 (de) | 2006-12-27 |
| DK0993862T4 (da) | 2007-05-07 |
| DE59905813D1 (de) | 2003-07-10 |
| US6394430B1 (en) | 2002-05-28 |
| EP0993862A1 (de) | 2000-04-19 |
| DK0993862T3 (da) | 2003-09-29 |
| ATE242043T1 (de) | 2003-06-15 |
| DE29818255U1 (de) | 2000-02-17 |
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