CH559575A5 - Gas introduction device for nutrient media - with impeller having venturi suction eye and gas inlet holes at narrowest section - Google Patents

Gas introduction device for nutrient media - with impeller having venturi suction eye and gas inlet holes at narrowest section

Info

Publication number
CH559575A5
CH559575A5 CH842873A CH842873A CH559575A5 CH 559575 A5 CH559575 A5 CH 559575A5 CH 842873 A CH842873 A CH 842873A CH 842873 A CH842873 A CH 842873A CH 559575 A5 CH559575 A5 CH 559575A5
Authority
CH
Switzerland
Prior art keywords
impeller
gas
reactor
venturi
inlet holes
Prior art date
Application number
CH842873A
Other languages
German (de)
Original Assignee
Mueller Hans Maennedorf
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mueller Hans Maennedorf filed Critical Mueller Hans Maennedorf
Priority to CH842873A priority Critical patent/CH559575A5/en
Priority to FI3427/73A priority patent/FI56775C/en
Priority to ES420680A priority patent/ES420680A1/en
Priority to GB5526973A priority patent/GB1431849A/en
Priority to IT3173173A priority patent/IT1001965B/en
Priority to DE19732359830 priority patent/DE2359830C3/en
Priority to FR7343884A priority patent/FR2211279B1/fr
Priority to DD17899374A priority patent/DD114005A5/xx
Priority to AT474274A priority patent/AT346290B/en
Priority to DE2433414A priority patent/DE2433414C3/en
Publication of CH559575A5 publication Critical patent/CH559575A5/en
Priority to US05/613,305 priority patent/US4018859A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical axis
    • C02F3/165—Activated sludge processes using surface aeration the aerator having a vertical axis using vertical aeration channels
    • 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
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/60—Pump mixers, i.e. mixing within a pump
    • B01F25/64—Pump mixers, i.e. mixing within a pump of the centrifugal-pump type, i.e. turbo-mixers
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/808—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers driven from the bottom of the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/93—Heating or cooling systems arranged inside the receptacle
    • 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/19—Details relating to the geometry of the reactor
    • B01J2219/194—Details relating to the geometry of the reactor round
    • B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
    • B01J2219/1942—Details relating to the geometry of the reactor round circular or disk-shaped spherical
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Gas (air) can be introduced into liq. during microbiological processes (producing of antibiotics, growth of micro-organisms) by a revolving shrouded impeller. The impeller has at the axial suction opening a venturi-like contraction. Suction holes for the gas to be introduced are arranged at the narrowest place, which the gas reaches through a hollow shaft. Impeller speed need not be excessively high; reliable function is obtd. even for relatively high viscosities; and optimum conditions are adjustable by varying the venturi section or impeller dimensions.

Description

       

  
 



   Gegenstand der Erfindung ist eine Vorrichtung zum Begasen von Flüssigkeiten in einem kugelförmigen Reaktor, hier Kugelfermenter genannt. Die Vorrichtung dient vorzugs weise zur Belüftung bei mikrobioligischen Prozessen.



   Es sind Vorrichtungen dieser Art in der schweizerischen Patentschrift Nr. 545 651 beschrieben. Dieses Patent beschreibt eine Vorrichtung zum Begasen von Flüssigkeiten mit Hilfe einer Kreiselpumpe, die dadurch gekennzeichnet ist, dass die Pumpe mit einem axial ansaugenden, geschlossenen Schleuderrad versehen ist, das an der Eintrittsöffnung eine venturiartige Verengung und an der engsten Stelle Ansaug öffnungen für Gase besitzt.



   Die Ansaughöhen sind nun durch die Form des Reaktors wegen des hydrostatischen Druckes limitiert.



   Aufgabe der Erfindung ist, eine Vorrichtung zu schaffen, die diese Nachteile vermeidet.



   Die Aufgabe wird nun durch eine Vorrichtung zum Begasen von Flüssigkeiten mit Hilfe einer Kreiselpumpe mit einem axial ansaugenden, geschlossenen Schleuderrad, das an der Eintrittsöffnung eine venturiartige Verengung besitzt und an der engsten Stelle Ansaugöffnungen für Gase besitzt, dadurch gelöst, dass die Pumpeneinheit z. B. durch einen Flansch an einem kugelförmigen Reaktor montiert ist.



   Es hat sich nämlich gezeigt, dass sich die beschriebene Vorrichtung besonders gut für einen Behälter mit der Form einer Kugel eignet. Ein runder Kessel widersteht dem hydrostatischen Druck besser als ein Zylinder, so dass grössere Flüssigkeitsvolumina behandelt werden können. Dies spielt bei der Überwindung des hydrostatischen Druckes bei   Selbst-    ansaugung eine wesentliche Rolle. Der Vorteil liegt in einer grösseren Befüllung des Kugelfermenters im Vergleich zum konventionellen Fermenter. Auch die Form der Oberfläche wirkt sich günstig auf die Vernichtung des gebildeten Schaumes aus. Ferner ist durch die kleinere Oberfläche der Kugel und den günstigeren Stabilitätsverhältnissen weniger und dünneres Material erforderlich. Die Einsparungen betragen bis zu einem Drittel gegenüber dem herkömmlichen Fermenter.



   Des weiteren lassen sich durch das grössere Nutzvolumen mehr Kühlelemente in das Innere des Reaktors einbringen.



  Dies ist bei den exothermen Vorgängen während des aeroben Wachstums der zum Einsatz kommenden Mikroorganismen von grossem Vorteil.



   Zur näheren Erläuterung zeigt Fig. 1 der Zeichnung einen Vertikalschnitt durch den Kugelfermenter. Es bedeuten darin
1 die Kesselwand des Kugelfermenters, 2 den Antrieb der im Patent Nr. 545 651 beschriebenen Selbstansaugevorrichtung 3.



  Die Luft tritt durch den Ansaugstutzen 4 in den Fermenter ein und verlässt ihn über einen mechanischen Schaumabscheider 5.



   Die Einbauten 6 dienen als Kühlelemente während der Fermentierung.



   Fig. 2 zeigt den Querschnitt AB in der Aufsicht. 



  
 



   The invention relates to a device for gassing liquids in a spherical reactor, called a spherical fermenter here. The device is preferably used for ventilation in microbiological processes.



   Devices of this type are described in Swiss Patent No. 545,651. This patent describes a device for gassing liquids with the help of a centrifugal pump, which is characterized in that the pump is provided with an axially sucking, closed centrifugal wheel that has a venturi-like constriction at the inlet opening and suction openings for gases at the narrowest point.



   The suction heights are now limited by the shape of the reactor due to the hydrostatic pressure.



   The object of the invention is to create a device which avoids these disadvantages.



   The object is now achieved by a device for gassing liquids with the help of a centrifugal pump with an axially sucking, closed centrifugal wheel, which has a venturi-like constriction at the inlet opening and suction openings for gases at the narrowest point, in that the pump unit z. B. is mounted by a flange on a spherical reactor.



   It has been shown that the device described is particularly suitable for a container with the shape of a sphere. A round vessel withstands hydrostatic pressure better than a cylinder, so that larger volumes of liquid can be treated. This plays an important role in overcoming the hydrostatic pressure during self-priming. The advantage lies in the fact that the spherical fermenter is filled more than a conventional fermenter. The shape of the surface also has a beneficial effect on the destruction of the foam formed. Furthermore, due to the smaller surface area of the ball and the more favorable stability conditions, less and thinner material is required. The savings are up to a third compared to the conventional fermenter.



   Furthermore, more cooling elements can be introduced into the interior of the reactor due to the larger usable volume.



  This is of great advantage in the exothermic processes during the aerobic growth of the microorganisms used.



   For a more detailed explanation, FIG. 1 of the drawing shows a vertical section through the spherical fermenter. It mean in it
1 the boiler wall of the ball fermenter, 2 the drive of the self-priming device described in patent no. 545 651 3.



  The air enters the fermenter through the suction nozzle 4 and leaves it via a mechanical foam separator 5.



   The internals 6 serve as cooling elements during the fermentation.



   Fig. 2 shows the cross section AB in plan.

Claims (1)

PATENTANSPRUCH PATENT CLAIM Vorrichtung zum Begasen von Flüssigkeiten in einem Reaktor mit Hilfe einer Kreiselpumpe mit einem axial ansaugenden, geschlossenen Schleuderrad, das an der Eintritts öffnung eine venturiartige Verengung besitzt und an der engsten Stelle Ansaugöffnungen für Gase besitzt, dadurch gekennzeichnet, dass die Pumpeneinheit an einem kugelförmigen Reaktor montiert ist. Device for gassing liquids in a reactor with the help of a centrifugal pump with an axially sucking, closed centrifugal wheel, which has a venturi-like constriction at the inlet opening and suction openings for gases at the narrowest point, characterized in that the pump unit is mounted on a spherical reactor is. UNTERANSPRÜCHE 1. Vorrichtung nach Patentanspruch, dadurch gekennzeichnet, dass der Reaktor Luftein- und -austrittsöffnungen besitzt. SUBCLAIMS 1. Device according to claim, characterized in that the reactor has air inlet and outlet openings. 2. Vorrichtung nach Patentanspruch, dadurch gekennzeichnet, dass die Wände des Reaktors aus Metall bestehen. 2. Device according to claim, characterized in that the walls of the reactor are made of metal. 3. Vorrichtung nach Patentanspruch, dadurch gekennzeichnet, dass die Wände des Reaktors aus Kunststoff bestehen. 3. Device according to claim, characterized in that the walls of the reactor are made of plastic. 4. Vorrichtung nach Patentanspruch, dadurch gekennzeichnet, dass der Reaktor mit Kühlelementen ausgestattet ist. 4. Device according to claim, characterized in that the reactor is equipped with cooling elements.
CH842873A 1972-12-01 1973-06-08 Gas introduction device for nutrient media - with impeller having venturi suction eye and gas inlet holes at narrowest section CH559575A5 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
CH842873A CH559575A5 (en) 1973-06-08 1973-06-08 Gas introduction device for nutrient media - with impeller having venturi suction eye and gas inlet holes at narrowest section
FI3427/73A FI56775C (en) 1972-12-01 1973-11-06 ANORDNING FOER FOERGASNING AV VAETSKOR
ES420680A ES420680A1 (en) 1973-06-08 1973-11-20 Improvements introduced in the structure of the devices for incorporating gases to liquids. (Machine-translation by Google Translate, not legally binding)
GB5526973A GB1431849A (en) 1972-12-01 1973-11-28 Apparatus for aerating a liquid
IT3173173A IT1001965B (en) 1972-12-01 1973-11-28 DEVICE FOR GASING LIQUIDS
DE19732359830 DE2359830C3 (en) 1972-12-01 1973-11-30 Fermenter with aeration device for aerobic microbiological processes
FR7343884A FR2211279B1 (en) 1972-12-01 1973-12-03
DD17899374A DD114005A5 (en) 1973-06-08 1974-06-06
AT474274A AT346290B (en) 1973-06-08 1974-06-07 DEVICE FOR FUMING LIQUIDS
DE2433414A DE2433414C3 (en) 1972-12-01 1974-07-11 Fermentation tank
US05/613,305 US4018859A (en) 1972-12-01 1975-09-15 Arrangement for aerating of liquids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH842873A CH559575A5 (en) 1973-06-08 1973-06-08 Gas introduction device for nutrient media - with impeller having venturi suction eye and gas inlet holes at narrowest section

Publications (1)

Publication Number Publication Date
CH559575A5 true CH559575A5 (en) 1975-03-14

Family

ID=4340190

Family Applications (1)

Application Number Title Priority Date Filing Date
CH842873A CH559575A5 (en) 1972-12-01 1973-06-08 Gas introduction device for nutrient media - with impeller having venturi suction eye and gas inlet holes at narrowest section

Country Status (4)

Country Link
AT (1) AT346290B (en)
CH (1) CH559575A5 (en)
DD (1) DD114005A5 (en)
ES (1) ES420680A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3891214T1 (en) * 1988-12-15 1990-10-11 Stefan Loefgren STIRRING DEVICE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423272C2 (en) * 1994-07-05 2003-04-30 Nerger Christian Agitator for circulating suspensions by rotating jets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3891214T1 (en) * 1988-12-15 1990-10-11 Stefan Loefgren STIRRING DEVICE

Also Published As

Publication number Publication date
ATA474274A (en) 1978-03-15
DD114005A5 (en) 1975-07-12
AT346290B (en) 1978-11-10
ES420680A1 (en) 1976-04-16

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Owner name: CHEMAP AG

PL Patent ceased