DE3621903A1 - Agitator (stirrer) - Google Patents

Agitator (stirrer)

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Publication number
DE3621903A1
DE3621903A1 DE19863621903 DE3621903A DE3621903A1 DE 3621903 A1 DE3621903 A1 DE 3621903A1 DE 19863621903 DE19863621903 DE 19863621903 DE 3621903 A DE3621903 A DE 3621903A DE 3621903 A1 DE3621903 A1 DE 3621903A1
Authority
DE
Germany
Prior art keywords
agitator
rotor
stirring rotor
agitator according
outlet opening
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.)
Granted
Application number
DE19863621903
Other languages
German (de)
Other versions
DE3621903C2 (en
Inventor
Alois Maier
Michael Maier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KERSTING, WOLFGANG, 48249 DUELMEN, DE
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Individual
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Publication date
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Application filed by Individual filed Critical Individual
Priority to DE19863621903 priority Critical patent/DE3621903A1/en
Publication of DE3621903A1 publication Critical patent/DE3621903A1/en
Application granted granted Critical
Publication of DE3621903C2 publication Critical patent/DE3621903C2/de
Granted legal-status Critical Current

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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
    • B01F23/23315—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 guide surrounding the 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
    • B01F23/2332—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements the stirrer rotating about a horizontal axis; Stirrers therefor
    • 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
    • B01F23/23341—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 with tubes surrounding the stirrer
    • 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
    • B01F23/23365—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 at the radial periphery of the stirrer
    • 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
    • B01F23/23367—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 behind 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
    • B01F27/25—Mixers with both stirrer and drive unit submerged in the material being mixed
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/71—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with propellers
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • 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
    • 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
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1144—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections with a plurality of blades following a helical path on a shaft or a blade support
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

Agitator for the introduction of gases into liquids as fine bubbles, the agitator rotor being designed as a screw or propeller and the gas outlet orifices being designed as an annular gap or annular chamber. Flow passes the agitator rotor axially and at least part of the agitator rotor protrudes into the annular gap or annular chamber.

Description

Die Erfindung betrifft ein Rührwerk zur Einbringung von Gas in Flüssig­ keiten, insbesondere zur Belüftung von Gülle oder Flüssigmist in einem Güllebehälter, mit wenigstens einem Rührrotor und mit wenigstens einer ortsfesten Ansaugleitung, durch die der Rührrotor Luft ansaugt und de­ ren Auslaßöffnung in unmittelbarer Nähe des Rührrotors angeordnet ist.The invention relates to an agitator for introducing gas into liquid capabilities, especially for the ventilation of liquid manure or liquid manure in one Slurry tank, with at least one stirring rotor and with at least one stationary suction line through which the stirring rotor sucks air and de Ren outlet opening is arranged in the immediate vicinity of the stirring rotor.

Derartige Rührwerke werden benutzt, um die Fließfähigkeit von dickflüs­ sigen bis nahezu teigigen Stoffen zu verbessern, indem Gase einge­ bracht werden und die dickflüssige hierdurch dünnflüssiger und damit wieder pumpfähig wird. Dieses Problem stellt sich insbesondere bei Gülle oder Flüssigmist, da sich hierbei durch lange Lagerung im Gülle­ behälter eingedickte Schichten bilden, die eine Entleerung mit übli­ chen Vakuumpumpfässern oft unmöglich machen.Such agitators are used to ensure the fluidity of thick rivers to improve pasty to almost pasty substances by gases are brought and the viscous thereby thinner and thus becomes pumpable again. This problem arises in particular Manure or liquid manure, as this is due to long storage in the manure form container-thickened layers, which emptying with übli often make vacuum pump drums impossible.

Darüberhinaus wird durch die Belüftung eine verminderte Geruchsent­ wicklung beim Ausbringen der Gülle erreicht, sowie eine bessere Pflanzenverträglichkeit durch eine verringerte Ätzwirkung infolge des Luftzusatzes beabsichtigt.In addition, the ventilation reduces the odor achieved when spreading the slurry, as well as a better Plant tolerance due to a reduced caustic effect as a result of the air additive is intended.

Zur Erreichung dieser Wirkungen, insbesondere der verringerten Ätz­ wirkung, bedarf es eines "sehr kräftigen Sauerstoffeintrages" in möglichst feinblasiger Form (vgl. Bayerisches Landwirtschaftliches Wochenblatt vom 8.3.1986, Seite 13), um durch die möglichst gesättigte Lösung von Sauerstoff in Gülle das Wachstum von aeroben Bakterien zu fördern. Die mit der Bakterienaktivität verbundene Temperaturerhöh­ ung vermindert bei genügendem Lufteintrag die Bildung von Ammoniak und damit die Ätzwirkung der Gülle. Hierzu ist ein Rührwerk erwünscht, das einen hohen Sauerstoffeintrag sicherstellt.To achieve these effects, especially the reduced etch effect, it requires a "very strong oxygen input" in as fine a bubble as possible (see Bavarian Agricultural Wochenblatt dated 8.3.1986, page 13), to get the most saturated Dissolving oxygen in manure increases the growth of aerobic bacteria promote. The temperature increase associated with bacterial activity If there is sufficient air intake, ammonia is reduced and thus the caustic effect of the manure. An agitator is required for this, that ensures a high oxygen input.

Aus der DE-PS 29 33 784 ist ein Rührwerk der eingangs genannten Art bekannt, bei dem ein axial durchströmter Propeller durch eine in einem Tragrohr gelagerte Welle angetrieben wird und das Luftzuführ­ rohr an der Propellersaugseite mündet, wobei dieses axial neben der Propellerwelle angeordnet ist. Die Auslaßöffnung des Luftzuführrohres ist dabei im Bereich des größten Propellerdurchmessers angeordnet.From DE-PS 29 33 784 an agitator of the type mentioned known in which an axially flowed propeller through a a shaft mounted shaft is driven and the air supply pipe opens on the propeller suction side, this axially next to the Propeller shaft is arranged. The outlet opening of the air supply pipe is arranged in the area of the largest propeller diameter.

Diese Anordnung weist jedoch den Nachteil auf, daß in der Nähe der Luftauslaßöffnungen die Strömung der Flüssigkeit turbulent ist, da die Flüssigkeit im äußeren Bereich des Propellers durch die Zentri­ fugalkraft abgeschleudert und ohne bevorzugte Abströmrichtung aus der Rührzone austritt. Dadurch ergeben sich nur geringe Unterschiede in der Strömungsgeschwindigkeit an der Ansaugöffnung gegenüber der um­ gebenden Flüssigkeit und der Ansaugunterdruck reicht nicht aus, um einen kräftigen Sauerstoffeintrag zu erbringen, sowie auch in tiefen Güllebehältern noch Luft anzusaugen.However, this arrangement has the disadvantage that near the Air outlet openings because the flow of the fluid is turbulent the liquid in the outer area of the propeller through the centri  centrifugal force thrown out and without preferred flow direction from the Stirring zone emerges. This results in only slight differences in the flow velocity at the suction opening compared to the giving liquid and the suction vacuum is not sufficient to to bring a strong oxygen input, as well as in deep Manure tanks still suck in air.

Demzufolge besteht die Aufgabe der Erfindung darin, bei einem Rührwerk der eingangs genannten Art einen größtmöglichen Ansaugdruck zu erzie­ len, um einen ausreichend kräftigen Sauerstoffeintrag auch bei großen Rührtiefen sicherzustellen.Accordingly, the object of the invention is in an agitator of the kind mentioned in the introduction of the greatest possible suction pressure len to ensure a sufficiently strong oxygen input even with large Ensure stirring depths.

Diese Aufgabe wird dadurch gelöst, daß der Rührrotor zumindest teilweise von einem ortsfesten Leitring umhüllt ist und die Auslaßöffnung(en) der Ansaugleitung(en) an dem Leitring angeordnet ist/sind.This object is achieved in that the stirring rotor is at least partially is surrounded by a stationary guide ring and the outlet opening (s) of the Suction line (s) is / are arranged on the guide ring.

Bei der erfindungsgemäßen Ausbildung des Rührwerks wird mittels des Leitringes eine an den Rotorschaufeln anliegende, gleichförmige Strömung und damit eine hohe Strömungsgeschwindigkeit, insbesondere in Axialrichtung, ermöglicht. Dadurch ist der Ansaugunterdruck an der unmittelbar benachbarten Auslaßöffnung(en) der Luftansaugleitung sehr hoch. Da neben der hohen Axialgeschwindigkeit der Flüssigkeit auch die Umlaufgeschwindigkeit des Rührrotors einen Sog bewirkt, wird selbst dickflüssige Gülle, die sich bei Nichtbetrieb des Rührwerks in der Luft­ ansaugleitung ansammelt,sehr sicher abgesaugt,so daß keinerlei Ver­ stopfungen der Leitungen auftreten können.In the inventive design of the agitator is by means of Guide ring a uniform on the rotor blades Flow and thus a high flow rate, in particular in the axial direction. As a result, the suction vacuum on the very close to the outlet opening (s) of the air intake line high. In addition to the high axial speed of the liquid, the Orbital speed of the stirring rotor causes suction viscous liquid manure that is in the air when the agitator is not in operation suction line accumulates, very safely vacuumed, so that no Ver blockages in the lines can occur.

Von besonderem Vorteil ist die intensive Vermischung der Luft mit der Gülle, da die angesaugte Luft beim Übergang von der Saug- in die Druck­ zone des Rührrotors feinblasig in die Gülle eingearbeitet wird und so mit in der Gülle in Lösung geht.The intensive mixing of the air with the Slurry, because the air sucked in during the transition from suction to pressure zone of the agitator rotor is worked into the liquid manure and so on with in the slurry goes into solution.

Durch den besonders hohen Ansaugunterdruck und die damit verbundene hohe Luftansaugmenge und intensive Vermischung reichen sehr kurze Laufzeiten des Rührwerks zur Gülleaufbereitung aus und das Einbringen von Luft in größeren Rührtiefen als üblich ist damit möglich, wobei für das Rühren am Grund des Güllebehälters, das bisher kaum möglich war, der Leitring als Schutz gegen Berührung des Bodens mit dem Rotor dient.Due to the particularly high suction vacuum and the associated high Air intake and intensive mixing are very short run times of the agitator for liquid manure processing and the introduction of air into greater stirring depths than usual is possible, with stirring at the bottom of the slurry tank, which was hardly possible until now, the guide ring serves as protection against contact of the ground with the rotor.

Der Gegenstand der Erfindung wird nachstehend mit in der Zeichnung dargestellten, bevorzugten Ausführungsbeispielen näher beschrieben und erläutert; es zeigtThe object of the invention is hereinafter with in the drawing illustrated preferred embodiments described in more detail and explained; it shows

Fig. 1: ein Propellerrührwerk an einem Hubgerüst in Seitenansicht Fig. 1: a propeller agitator on a mast in side view

Fig. 2: ein Rührwerk mit Rührschnecke im Teilschnitt Fig. 2: an agitator with a stirring screw in partial section

In Fig. 1 ist ein erfindungsgemäßes Rührwerk dargestellt, das an einem Hubgerüst in den Güllebehälter 2 abgesenkt werden kann. Das Rührwerk be­ steht bei diesem Beispiel aus dem Tauchelektromotor 3, mit Stromzu­ leitung 3 a, der über eine Welle 4 den Rührrotor 5, hier ein Propeller 5 a mit Schaufeln 5 b, antreibt und dadurch Außenluft durch die Ansauglei­ tung 6 und seiner Auslaßöffnung 7 angesaugt wird. Der Rührrotor 5 ist durch einen ortsfesten Leitring 8 ummantelt und an diesem die Ansaug­ leitung 6 mit seiner Auslaßöffnung 7 angeordnet, wobei hier die Ansaug­ leitung 6 über nicht näher bezeichnete Verteilerstücke in mehreren Auslaßöffnungen 7 a,7 b münden . Diese sind jeweils auf den Rührrotor 5 hin ausgerichtet, 7 a in etwa radial, 7 b in etwa tangential. Die genaue Lage, Anzahl und Ausrichtung der Auslaßöffnungen 7 in un­ mittelbarer Nähe des Leitringes 8 ist dabei vor allem von der zu be­ lüftenden Flüssigkeit, deren Viskosität, die Form und Schaufelausbildung des Rührrotors abhängig und wird jeweils an diese angepaßt. So können bei schmalen Leitringen 8 die Auslaßöffnungen 7 zu einem Ringspalt 9 zusammengefaßt werden, sowie die Verteilerrohrstücke der Ansaugleitung 6 zu einer Ringkammer 10 zusammengefaßt sein, die teils aus dem Leitring 8 gebildet ist und durch eine radial-tangential orientierte Ausklinkung die Auslaßöffnung 7 c bildet.In Fig. 1, an agitator according to the invention is shown, which can be lowered on a mast in the slurry tank 2. The agitator be in this example from the submersible electric motor 3 , with power supply line 3 a , which drives the agitator rotor 5 , here a propeller 5 a with blades 5 b , via a shaft 4 , thereby driving outside air through the suction line 6 and its outlet opening 7 is sucked in. The stirring rotor 5 is encased by a stationary guide ring 8 and on this the intake line 6 with its outlet opening 7 , here the intake line 6 via unspecified manifolds in several outlet openings 7 a , 7 b . These are each aligned with the stirring rotor 5 , 7 a approximately radially, 7 b approximately tangentially. The exact location, number and orientation of the outlet openings 7 in the immediate vicinity of the guide ring 8 is primarily dependent on the liquid to be ventilated, its viscosity, the shape and blade formation of the stirring rotor and is adapted to this. So with narrow guide rings 8, the outlet openings 7 can be combined to form an annular gap 9 , and the distributor pipe pieces of the suction line 6 can be combined to form an annular chamber 10 , which is partly formed from the guide ring 8 and forms the outlet opening 7 c by a radially-tangentially oriented notch .

Fig. 2 zeigt eine weitere Ausführungsform, bei der der Rührrotor 5 durch eine Rührschnecke 11 mit schraubenlinienförmigen Schneckengängen 12 gebildet wird und eine konische Außenform mit spitzzulaufenden End­ stücken 13 aufweist. Wie ersichtlich, wird die Rührschnecke 11 teil­ weise durch den Leitring 8 umhüllt. Daran schließt sich unmittelbar die Ringkammer 10 an, in die sich die Rührschnecke 11 hineinerstreckt und somit die hier als Ringspalt 9 ausgebildete Luftauslaßöffnung 7 den Rührrotor 5 umgibt. Fig. 2 shows a further embodiment, in which the stirring rotor 5 is formed by a stirring screw 11 with helical screw flights 12 and has a conical outer shape with tapered end pieces 13 . As can be seen, the stirring screw 11 is partially enveloped by the guide ring 8 . This is immediately followed by the annular chamber 10 , into which the stirring screw 11 extends and thus the air outlet opening 7, which is designed here as an annular gap 9 , surrounds the stirring rotor 5 .

Dadurch entsteht auch hier der beabsichtigte gerichtete Flüssigkeitsstrom, aufgrund des Leitrings, so daß aus dem unmittelbar benachbarten Ring­ spalt 9 Luft mit großem Unterdruck angesaugt wird.This also creates the intended directed liquid flow, due to the guide ring, so that gap 9 is sucked in with a large vacuum from the immediately adjacent ring.

Claims (9)

1. Rührwerk zur Einbringung von Gas in Flüssigkeiten, insbesondere zur Belüftung von Gülle oder Flüssigmist in einem Güllebehälter, mit we­ nigstens einem Rührrotor und mit wenigstens einer ortsfesten Ansaug­ leitung, durch die der Rührrotor Luft ansaugt und deren Auslaßöffnung in unmittelbarer Nähe des Rührrotors angeordnet ist, dadurch gekenn­ zeichnet, daß der Rührrotor (5) zumindest teilweise von einem ortsfesten Leitring (8) umhüllt ist und die Auslaßöffnung(en) (7) der Ansauglei­ tung(en) (6) an dem Leitring (8) angeordnet ist/sind.1. Agitator for introducing gas into liquids, in particular for aeration of liquid manure or liquid manure in a liquid manure tank, with we least one stirring rotor and with at least one stationary suction line through which the stirring rotor sucks in air and the outlet opening of which is arranged in the immediate vicinity of the stirring rotor , characterized in that the stirring rotor ( 5 ) is at least partially encased by a stationary guide ring ( 8 ) and the outlet opening (s) ( 7 ) of the suction device (s) ( 6 ) is / are arranged on the guide ring ( 8 ) . 2. Rührwerk nach Anspruch 1, dadurch gekennzeichnet, daß die Auslaßöff­ nung(en) (7) in etwa radial und/oder tangential auf den Rührrotor (5) ausgerichtet ist/sind.2. Agitator according to claim 1, characterized in that the outlet opening (s) ( 7 ) is / are aligned approximately radially and / or tangentially to the agitator rotor ( 5 ). 3. Rührwerk nach Anspruch 1, dadurch gekennzeichnet, daß der Leitring (8) als Ringkammer (10) ausgebildet ist, in die Rührrotor (5) in axialer Richtung zumindest teilweise eintaucht.3. Agitator according to claim 1, characterized in that the guide ring ( 8 ) is designed as an annular chamber ( 10 ) into which the stirring rotor ( 5 ) is at least partially immersed in the axial direction. 4. Rührwerk nach Anspruch 1, dadurch gekennzeichnet, daß die Luftauslaß­ öffnung (7) als Ringspalt (9) ausgebildet ist.4. Agitator according to claim 1, characterized in that the air outlet opening ( 7 ) is designed as an annular gap ( 9 ). 5. Rührwerk nach Anspruch 1, dadurch gekennzeichnet, daß der Rührrotor (5) als Propeller (5 a) ausgebildet ist.5. Agitator according to claim 1, characterized in that the stirring rotor ( 5 ) is designed as a propeller ( 5 a ). 6. Rührwerk nach Anspruch 1, dadurch gekennzeichnet, daß der Rührrotor (5) als Schnecke (11) ausgebildet ist.6. Agitator according to claim 1, characterized in that the stirring rotor ( 5 ) is designed as a screw ( 11 ). 7. Rührwerk nach Anspruch 1, dadurch gekennzeichnet, daß der Rührrotor (5) durch einen Tauchelektromotor (3) angetrieben ist.7. Agitator according to claim 1, characterized in that the agitator rotor ( 5 ) is driven by a submersible electric motor ( 3 ). 8. Rührwerk nach Anspruch 1, dadurch gekennzeichnet, daß der Rührrotor (5) über eine in einem Tragrohr gelagerte Welle (4) von einem außerhalb des Güllebehälters (2) befindlichen Motor angetrieben ist.8. Agitator according to claim 1, characterized in that the agitator rotor ( 5 ) via a shaft ( 4 ) mounted in a support tube is driven by an outside of the slurry tank ( 2 ) motor. 9. Rührwerk nach Anspruch 6, dadurch gekennzeichnet, daß die Schnecke (11) eine konische Außenform aufweist und die Schneckengänge (12) zu ihren Endstücken (13) spitzzulaufen.9. Agitator according to claim 6, characterized in that the screw ( 11 ) has a conical outer shape and the screw flights ( 12 ) to taper to their end pieces ( 13 ).
DE19863621903 1986-06-30 1986-06-30 Agitator (stirrer) Granted DE3621903A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863621903 DE3621903A1 (en) 1986-06-30 1986-06-30 Agitator (stirrer)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863621903 DE3621903A1 (en) 1986-06-30 1986-06-30 Agitator (stirrer)

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DE3621903A1 true DE3621903A1 (en) 1988-01-07
DE3621903C2 DE3621903C2 (en) 1991-10-02

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DE19863621903 Granted DE3621903A1 (en) 1986-06-30 1986-06-30 Agitator (stirrer)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359933A2 (en) * 1988-09-17 1990-03-28 Helmut Dorn Liquid manure stirring apparatus
EP0502218A1 (en) * 1989-01-27 1992-09-09 Toyo Denki Industrial Co., Ltd. Apparatus for producing stabilizing mixture
AT398018B (en) * 1989-06-30 1994-08-25 Dorn Helmut GÜLLER AGITATOR
AT407689B (en) * 1994-04-18 2001-05-25 Gritzner Gottfried Agitator for the introduction of air into liquids, in particular into liquid manure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925053A1 (en) * 1989-07-28 1991-01-31 Helmut Dorn Promoting aerobic bacteria in stirred liq. manure - by directed air supply and temp. controlled heater power feed

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908968C (en) * 1951-08-13 1954-04-12 Pista S A Fumigation device for liquids
FR1146951A (en) * 1955-04-26 1957-11-18 Voith Gmbh J M Method and device for enriching the waters of a watercourse with oxygen and for promoting the self-purification thereof
US3365178A (en) * 1965-02-26 1968-01-23 Mowid Anstalt Apparatus for agitating and aerating exposed bodies of water
CH514506A (en) * 1970-09-18 1971-10-31 Kaelin J R Sewage/effluents aerator - having propeller with suction which prevents dust nuisance
US3755142A (en) * 1971-05-21 1973-08-28 W Whipple Process and apparatus for the purification of a natural body of water
DE2835914A1 (en) * 1977-08-26 1979-03-29 Alfa Laval Stalltech DEVICE FOR GASIFICATION AND CIRCULATION OF LIQUIDS
EP0008462A1 (en) * 1978-08-24 1980-03-05 Anton Reck Apparatus for mixing and aerating liquids
DE2917423A1 (en) * 1979-04-28 1980-11-06 Anton Reck Liquid manure prepn. plant - includes transportable gas take=off chimney with air injector orifice
US4242199A (en) * 1979-05-18 1980-12-30 Richards Of Rockford, Inc. Aerator apparatus
DE3427584A1 (en) * 1984-07-26 1986-02-06 Franz Eisele & Soehne Gmbh & C Injector appliance
DE3023428C2 (en) * 1980-06-23 1989-07-20 Josef 8521 Wielerstett Ostermaier Process for processing liquid manure and housing pump for carrying out the process

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908968C (en) * 1951-08-13 1954-04-12 Pista S A Fumigation device for liquids
FR1146951A (en) * 1955-04-26 1957-11-18 Voith Gmbh J M Method and device for enriching the waters of a watercourse with oxygen and for promoting the self-purification thereof
US3365178A (en) * 1965-02-26 1968-01-23 Mowid Anstalt Apparatus for agitating and aerating exposed bodies of water
CH514506A (en) * 1970-09-18 1971-10-31 Kaelin J R Sewage/effluents aerator - having propeller with suction which prevents dust nuisance
US3755142A (en) * 1971-05-21 1973-08-28 W Whipple Process and apparatus for the purification of a natural body of water
DE2835914A1 (en) * 1977-08-26 1979-03-29 Alfa Laval Stalltech DEVICE FOR GASIFICATION AND CIRCULATION OF LIQUIDS
EP0008462A1 (en) * 1978-08-24 1980-03-05 Anton Reck Apparatus for mixing and aerating liquids
DE2917423A1 (en) * 1979-04-28 1980-11-06 Anton Reck Liquid manure prepn. plant - includes transportable gas take=off chimney with air injector orifice
US4242199A (en) * 1979-05-18 1980-12-30 Richards Of Rockford, Inc. Aerator apparatus
DE3023428C2 (en) * 1980-06-23 1989-07-20 Josef 8521 Wielerstett Ostermaier Process for processing liquid manure and housing pump for carrying out the process
DE3427584A1 (en) * 1984-07-26 1986-02-06 Franz Eisele & Soehne Gmbh & C Injector appliance

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Prospekt "Agro-Jet-Güllebelüftung" der Fa. Maier Gülletechnik, Bergerhausen, DE-Z.: "Allgäuer Bauernblatt", 54 (1986), Nr. 29, S. 1440-1441, Juli 1986 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359933A2 (en) * 1988-09-17 1990-03-28 Helmut Dorn Liquid manure stirring apparatus
EP0359933A3 (en) * 1988-09-17 1990-05-16 Helmut Dorn Liquid manure stirring apparatus
EP0502218A1 (en) * 1989-01-27 1992-09-09 Toyo Denki Industrial Co., Ltd. Apparatus for producing stabilizing mixture
AT398018B (en) * 1989-06-30 1994-08-25 Dorn Helmut GÜLLER AGITATOR
AT407689B (en) * 1994-04-18 2001-05-25 Gritzner Gottfried Agitator for the introduction of air into liquids, in particular into liquid manure

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