DE1075559B - Blade stirrer with hollow shaft for dividing gases into liquids - Google Patents
Blade stirrer with hollow shaft for dividing gases into liquidsInfo
- Publication number
- DE1075559B DE1075559B DENDAT1075559D DE1075559DA DE1075559B DE 1075559 B DE1075559 B DE 1075559B DE NDAT1075559 D DENDAT1075559 D DE NDAT1075559D DE 1075559D A DE1075559D A DE 1075559DA DE 1075559 B DE1075559 B DE 1075559B
- Authority
- DE
- Germany
- Prior art keywords
- hollow shaft
- gases
- liquids
- dividing
- blade stirrer
- 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.)
- Pending
Links
- 239000007789 gas Substances 0.000 title description 24
- 239000007788 liquid Substances 0.000 title description 10
- 238000005520 cutting process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000003068 static Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
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
- B01F23/2331—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
- B01F23/2366—Parts; Accessories
- B01F23/2368—Mixing receptacles, e.g. tanks, vessels or reactors, being completely closed, e.g. hermetically closed
-
- 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
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/402—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
- B01F33/4021—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements the gas being introduced through the shaft of the stirring element
-
- 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
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Description
Flügelrührer mit hohler Welle zum Zerteilen von Gasen in Flüssigkeiten Es ist bekannt, Gase in Flüssigkeiten entweder vermittels ruhender Düsen, Filterplatten od. dgl. oder vermittels besonderer Rührwerke zu zerteilen, bei denen das im Dispersionsmittel erzeugte Geschwindigkeitsgefälle die beabsichtigte Wirkung hervorbringt.Blade stirrer with hollow shaft for dividing gases into liquids It is known to divert gases in liquids either by means of static nozzles or filter plates Od. The like. Or by means of special agitators, where the in the dispersant generated velocity gradient produces the intended effect.
Darüber hinaus kann man durch stationär erzeugten Unterdruck oder durch mechanische Schwingungen den Zerteilungsvorgang fördern. Der apparative Aufwand nimmt dabei aber im allgemeinen mehr zu, als dem technologischen Vorteil entspricht.In addition, one can by stationary generated negative pressure or promote the cutting process through mechanical vibrations. The expenditure on equipment but generally increases more than corresponds to the technological advantage.
Bei den bekannten Flügelrührern weist z. B. deren Rührwerk einen EohlflügeI mit über die ganze Länge verteilten runden öffnungen auf.- Dabei entstehen in der darüber befindlichea Flüssigkeit zwei Zonen mit verschiedenen Mischungsverhältnissen. Diesem Rührwerk haftet aber inf9lg--ungenugender Gaszerteilung ein erheblicher Mangelvárl. In the known paddle stirrers, for. B. their agitator a EohlflugI with round openings distributed over the entire length in the liquid above there are two zones with different mixing ratios. This agitator is liable to inf9lg - inadequate gas distribution a considerable deficiency.
Weiterhin sind Flügelrührer bekanntgeworden, bei denen zwar ein großes Gefälle erzeugt wird, aber einen zu kleinen Querschnitt aufweisen. Damit kann man zwar fein zerteilen, erreicht aber keine ausreichenden Gasdurchsätze, da der Gasdurchtritt praktisch nur auf einer von oben gesehenen Kreislinie erfolgt. Furthermore, paddle stirrers have become known in which, although a large Slope is generated, but the cross-section is too small. So you can Although it is finely divided, it does not achieve sufficient gas throughputs because the gas penetrates practically only takes place on a circular line seen from above.
Man hat auch Schraubenmischer vorgeschlagen, bei denen sich der Rührflügel in einem diese umschließenden feststehenden Rohr bewegen, das mit Prallflächen als Strömungswiderstände versehen ist, die ein Kreisen der Strömung verhindern sollen. Eine innige Zerteilung der Gase findet aber auch hier nicht statt, da die Flügel keine Durchtrittsöffnungen aufweisen. It has also proposed screw mixers in which the impeller move in a fixed tube that surrounds them, with baffles as Flow resistances are provided to prevent the flow from circling. An intimate division of the gases does not take place here either, since the wings have no passage openings.
Durch die Erfindung ist ein Flügelrührer mit hohler Welle zum Zerteilen von Gasen in Flüssigkeiten und mit auf der ganzen Länge der Flügel auf entgegengesetzter Seite der Drehrichtung angeordneten Öffnungen für den Gasdurchtritt geschaffen worden, durch den die Nachteile der bisher auf diesem Gebiete bekanntgewordenen Flügelrührer in einfachster Art beseitigt werden. The invention provides a paddle stirrer with a hollow shaft for dividing of gases in liquids and with along the entire length of the wing on opposite Side of the direction of rotation arranged openings for the gas passage have been created, due to the disadvantages of the paddle stirrers that have become known in this field up to now can be eliminated in the simplest way.
Der der Erfindung zugrunde liegende Gedanke besteht darin, daß die Gasdurchtrittsöffnungen der Rührflügel derart schlitzförmig gestaltet sind, daß sie parallel oder schräg zur Drehachse des Gesamtsystemes verlaufen. Durch diese schlitzförmige Ausbildung der Öffnungen paßt sich der Gasaustritt sowohl seiner Geschwindigkeit als auch seiner Menge nach der über dem Rührwerk sich bewegenden Flüssigkeit an, die mengenmäßig nicht berücksichtigt zu werden braucht. The idea underlying the invention is that the Gas passage openings of the agitator blades are designed slot-shaped such that they run parallel or at an angle to the axis of rotation of the overall system. Through this The slot-shaped design of the openings adapts the gas outlet to both his Speed as well as its amount according to the moving over the agitator Liquid that does not need to be taken into account in terms of quantity.
Eine weitere Verbesserung der günstigen Eigenschaften des erfindungsgemäß gestalteten Flügelrührers wird durch ein ovales oder konkav-konvexes Profil erzielt. A further improvement of the favorable properties of the invention designed paddle stirrer is achieved by an oval or concavo-convex profile.
Weiter ist vorgesehen, daß die hohle Welle von einem feststehenden Gaszuführungsrohr umgeben ist, dessen unteres Ende alls zweites Lager für die Welle ausgebildet ist und daß an dem Gaszuführungsrohr Prallflächen angeordnet sind. Insbesondere werden durch die Prallflächen zu stark eintretende Bewegungen der über dem Rührwerk sich befindlichen Flüssigkeit verhindert. It is further provided that the hollow shaft of a stationary Gas supply pipe is surrounded, the lower end of which is all the second bearing for the shaft is formed and that baffles are arranged on the gas supply pipe. In particular excessive movements of the agitator caused by the impact surfaces prevents any liquid present.
In der Zeichnung ist der Erfindungsgegenstand schematisch dargestellt, und zwar veranschaulicht: Fig. 1 die Ansicht und die Draufsicht auf den hohlen Flügelrührer, Fig. 2 den Schnitt durch eine mit dem hohlen Flügelrührer versehenen Apparatur, Fig. 3 den Querschnitt durch den mit Schlitzen versehenen Flügelrührer (vergrößert), Fig. 4 den Querschnitt einer konkav-konvexen Form des Flügelrührers. The subject of the invention is shown schematically in the drawing, and specifically illustrates: FIG. 1 the view and the top view of the hollow paddle stirrer, 2 shows the section through an apparatus provided with the hollow paddle stirrer, 3 shows the cross section through the blade stirrer provided with slots (enlarged), 4 shows the cross section of a concavo-convex shape of the paddle stirrer.
Bei der Ausführung gemäß Fig. 1 tritt das zu zerteilende Gas durch die hohle Welle 1 in die hohlen Flügelrührer 2 ein. Diese besitzen eine Anzahl schlitzförmiger Öffnungen 3, welche auf ihrer der Drehrichtung abgekehrten Seite entsprechend dem Grundriß von Fig. 1 angebracht sind. Die Schlitze haben eine Breite von beispielsweise 0,5 mm und weisen einen gegenseitigen Abstand von wenigen Millimetern auf. In the embodiment according to FIG. 1, the gas to be divided passes through the hollow shaft 1 into the hollow impeller 2. These have a number of slot-shaped ones Openings 3, which on their side facing away from the direction of rotation according to the Plan of Fig. 1 are attached. The slots have a width of, for example 0.5 mm and have a mutual distance of a few millimeters.
Sie erstrecken sich z. B. auf etwa ein Viertel des Mantelumfangs, wie dies aus Fig. 3 ersichtlich ist.They extend z. B. to about a quarter of the circumference of the coat, as can be seen from FIG.
Das Profil des Flügelrührers 2 ist vorzugsweise ein kreisförmiges, doch kann auch ein ovales oder konkav-konvexes (s. Fig. 4) gewählt werden. Bei der Bewegung des Flügelrührers treten kavitationsähnliche Erscheinungen an seiner Unterdruckseite auf, die besonders den Zerteilungsvorgang fördern. Bei Anwendung von den erfindungsgemäß angeordneten Schlitzen hat man gegenüber lochförmigen Öffnungen den Vorteil, daß der Gasdurchtritt jeweils an der Stelle größten Unterdruckes und damit höchster Wirksamkeit erfolgt. Der Rührer kann, wie gezeichnet, zwei Flügelarme besitzen oder aber auch deren drei und mehr. Die Schlitze können - wie gezeich net - senkrecht zum Rührarm, oder aber auch schräg dazu angeordnet sein.The profile of the impeller 2 is preferably a circular, however, an oval or concavo-convex (see Fig. 4) can also be selected. In the Movement of the impeller, cavitation-like phenomena occur on its negative pressure side on, which particularly promote the cutting process. When applied of the slots arranged according to the invention, opposite one has hole-shaped openings the advantage that the gas passage in each case at the point of greatest negative pressure and so that the highest effectiveness takes place. As shown, the stirrer can have two wing arms own or have three or more. The slots can - as drawn net - Be arranged perpendicular to the agitator arm, or else at an angle to it.
Fig. 2 zeigt ein Beispiel für den Einbau in einer Apparatur. Auf dem Behälter 4 sitzt der Antriebs motor 5. Die hohle Achse 1 des Flügelrührers 2 ist von einem Mantelrohr 6 umgeben, welches dazu dient, das von 7 eintretende Gas der Achse zuzuführen. Fig. 2 shows an example of installation in an apparatus. on The drive motor 5 sits on the container 4. The hollow shaft 1 of the paddle stirrer 2 is surrounded by a jacket tube 6, which serves to discharge the gas entering from 7 to feed the axis.
Außerdem können an dem Mantelrohr 6 ein unteres Führungslager und die Prallflächen 8 angebracht sein.In addition, a lower guide bearing and can on the jacket tube 6 the baffles 8 be attached.
Letztere haben in bekannter Weise den Zweck, eine Drehbewegung des flüssigen Inhalts zu unterbinden, welche das Geschwindigkeitsgefälle vermindern würde.The latter have the purpose, in a known manner, of a rotary movement of the to prevent liquid contents, which reduce the speed gradient would.
Abgesehen von der einfachen Bauart der Rührapparatur besteht der Vorteil der erfindungsgemäßen Anordnung in der Erzeugung besonders feiner Gasdispersionen, die eine große Reaktionsgeschwindigkeit und gute Ausnutzung der Gase gewährleisten. Die Anordnung ist bis zu einigen Metern WS selbstansaugend, benötigt also bis zu diesem statischen Druck keinen zusätzlichen Kompressor zum Einleiten des Gases. Apart from the simple design of the stirring apparatus, the Advantage of the arrangement according to the invention in the generation of particularly fine gas dispersions, which ensure a high reaction rate and good utilization of the gases. The arrangement is self-priming up to a few meters WS, so requires up to This static pressure does not require an additional compressor to introduce the gas.
Die Anwendung der beschriebenen Erfindung erstreckt sich auf das Rühren aller Mischungen zwischen Gasen und Flüssigkeiten, insbesondere Oxydieren, Hydrieren, Chlorieren u. dgl. Ferner kann die Anordnung zur Gaswäsche, zur Herstellung von Schaum oder Schaumstoffen Verwendung finden. r PATENTANSPROCHE 1. Flügeirührer mit hohler Welle zum Zerteilen von Gasen in Flüssigkeiten und mit auf der ganzen Länge der Flügel auf entgegengesetzter Seite der Drehrichtung angeordneten Öffnungen für den Gasdurchtritt, dadurch gekennzeichnet, daß die Gasdurchtrittsöffnungen (3) der Rührflügel (2) derart schlitzförmig gestaltet sind, daß sie parallel oder schräg zur Drehachse des Gesamtsystems verlaufen. The application of the invention described extends to the Stirring all mixtures between gases and liquids, especially oxidizing, Hydrogenation, chlorination and the like the arrangement for gas scrubbing, for production of foam or foams are used. r PATENT APPEAL 1. Flight stirrer with hollow shaft for dividing gases into liquids and with on the whole Length of the wing openings arranged on the opposite side of the direction of rotation for the passage of gas, characterized in that the gas passage openings (3) the impeller (2) are designed in the form of a slot that they are parallel or inclined to the axis of rotation of the overall system.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE1075559B true DE1075559B (en) | 1960-02-18 |
Family
ID=599360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT1075559D Pending DE1075559B (en) | Blade stirrer with hollow shaft for dividing gases into liquids |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1075559B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2526674A1 (en) * | 1982-05-13 | 1983-11-18 | Italiana Carbochimica | MIXING AGITATOR IN PARTICULAR WITH GAS INSUFFLUTION CARRIED OUT BY THE AGITATOR HIMSELF |
US5198156A (en) * | 1986-02-17 | 1993-03-30 | Imperial Chemical Industries Plc | Agitators |
WO2009104002A1 (en) * | 2008-02-21 | 2009-08-27 | Farm Renewable Environmental Energy Ltd | A gas actuated mixing system and method |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE343401C (en) * | ||||
DE217658C (en) * | ||||
DE8794C (en) * | P. LANGBEIN in Würzburg (Bayern) | Transportable drilling machine with articulated boom | ||
FR405338A (en) * | 1909-07-22 | 1909-12-27 | Pol Henri Lutz | Mechanical mixer |
CH180361A (en) * | 1933-10-24 | 1935-10-31 | Hobart Manufacturing Company | Apparatus for whipping liquid food substances. |
FR838461A (en) * | 1938-05-27 | 1939-03-07 | Apparatus for moving liquids, gases and vapors, capable of operating emulsions or intimate mixtures | |
FR888432A (en) * | 1942-07-31 | 1943-12-13 | Improvements to agitator blowers in a liquid mass | |
US2559518A (en) * | 1948-03-26 | 1951-07-03 | Standard Oil Dev Co | Recirculating tank mixing system |
-
0
- DE DENDAT1075559D patent/DE1075559B/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE343401C (en) * | ||||
DE217658C (en) * | ||||
DE8794C (en) * | P. LANGBEIN in Würzburg (Bayern) | Transportable drilling machine with articulated boom | ||
FR405338A (en) * | 1909-07-22 | 1909-12-27 | Pol Henri Lutz | Mechanical mixer |
CH180361A (en) * | 1933-10-24 | 1935-10-31 | Hobart Manufacturing Company | Apparatus for whipping liquid food substances. |
FR838461A (en) * | 1938-05-27 | 1939-03-07 | Apparatus for moving liquids, gases and vapors, capable of operating emulsions or intimate mixtures | |
FR888432A (en) * | 1942-07-31 | 1943-12-13 | Improvements to agitator blowers in a liquid mass | |
US2559518A (en) * | 1948-03-26 | 1951-07-03 | Standard Oil Dev Co | Recirculating tank mixing system |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2526674A1 (en) * | 1982-05-13 | 1983-11-18 | Italiana Carbochimica | MIXING AGITATOR IN PARTICULAR WITH GAS INSUFFLUTION CARRIED OUT BY THE AGITATOR HIMSELF |
US5198156A (en) * | 1986-02-17 | 1993-03-30 | Imperial Chemical Industries Plc | Agitators |
WO2009104002A1 (en) * | 2008-02-21 | 2009-08-27 | Farm Renewable Environmental Energy Ltd | A gas actuated mixing system and method |
US20110042305A1 (en) * | 2008-02-21 | 2011-02-24 | Farm Renewable Environmental Energy Ltd | Gas actuated mixing system and method |
AU2009216568B2 (en) * | 2008-02-21 | 2013-07-18 | Farm Renewable Environmental Energy Ltd | A gas actuated mixing system and method |
US8608965B2 (en) * | 2008-02-21 | 2013-12-17 | Farm Renewable Environmental Energy Ltd. | Gas actuated mixing system and method |
EP2862622A1 (en) * | 2008-02-21 | 2015-04-22 | Farm Renewable Environmental Energy Ltd | A gas actuated mixing system and method |
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