NO151543B - HULT PUBLIC ORGAN FOR SUPPLYING GAS TO LIQUIDS - Google Patents

HULT PUBLIC ORGAN FOR SUPPLYING GAS TO LIQUIDS Download PDF

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Publication number
NO151543B
NO151543B NO801499A NO801499A NO151543B NO 151543 B NO151543 B NO 151543B NO 801499 A NO801499 A NO 801499A NO 801499 A NO801499 A NO 801499A NO 151543 B NO151543 B NO 151543B
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Norway
Prior art keywords
agitator
arms
hollow
gas
accordance
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NO801499A
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Norwegian (no)
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NO151543C (en
NO801499L (en
Inventor
Konstantin Sotirianos
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Chemap Ag
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Publication of NO801499L publication Critical patent/NO801499L/en
Publication of NO151543B publication Critical patent/NO151543B/en
Publication of NO151543C publication Critical patent/NO151543C/en

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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
    • C02F3/20—Activated sludge processes using diffusers
    • C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
    • 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
    • B01F23/233—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
    • B01F23/23342—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 the stirrer being of the centrifugal type, e.g. with a surrounding stator
    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/02—Stirrer or mobile mixing elements
    • C12M27/04—Stirrer or mobile mixing elements with introduction of gas through the stirrer or mixing element
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/18—Flow directing inserts
    • C12M27/20—Baffles; Ribs; Ribbons; Auger vanes
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/18—Flow directing inserts
    • C12M27/24—Draft tube
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • Sustainable Development (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Biomedical Technology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Gas Separation By Absorption (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

1. A hollow stirrer for gasification of a liquid medium particularly for introducing an oxygen-containing gaseous medium for the aerobic cultivation of microorganisms, including a hollow shaft, and hollow tube members serving simultaneously as gas supply pipes, which are inclined in a direction opposite to that of the relation and which are fixed at a right angle to the axis of rotation, characterized in that the tube members (12) of the hollow stirrer (3) are of uniformly curved tubes of a curvature defined by an arc of 908 sector, the peripheral annular outlet apertures are of the same diameter as the curved tubes themselves.

Description

Oppfinnelsen vedrører et hult røreorgan av det slaget som er angitt i innledningen til patentkrav 1, for tilføring av gass til væsker, særlig for innføring av en oksygenholdig gass, for aerob dyrking av mikroorganismer ved hjelp av en hulrører. The invention relates to a hollow stirrer of the kind stated in the introduction to patent claim 1, for supplying gas to liquids, in particular for introducing an oxygen-containing gas, for aerobic cultivation of microorganisms by means of a hollow stirrer.

Slike røreorgan er hult utformete rørelegemer, som med sitt innerrom står i forbindelse med henholdsvis et gassrom via en hulaksel og væska. Under rørelegemets rotasjon blir gassen suget inn i samsvar med strålesuger-prinsippet. Such stirrers are hollow shaped stirrers, which with their inner space are respectively connected to a gas space via a hollow shaft and liquid. During the rotation of the stirrer, the gas is sucked in in accordance with the jet suction principle.

Fra BRD bruksmønsterskrift nr. 72 28282 er det kjent en hulrører av dette slag. Rørearmenes rør er her avbøyd forover i omdreiningsretningen. Denne konstruksjonen er strømningsmessig uheldig, selv om det åpenbart forår-sakes en sterk sugevirkning. En ulempe ved slike kon-struksjoner er et forholdsvis høyt energiforbruk ved god gassgjennomgang. A hollow stirrer of this type is known from BRD utility model document no. 72 28282. Here, the tubes of the stirring arms are deflected forwards in the direction of rotation. This construction is unfavorable in terms of flow, although it obviously causes a strong suction effect. A disadvantage of such constructions is a relatively high energy consumption with good gas flow.

I BRD-PS 863.656 beskrives et organ for gassinn-føring med gassutløpsåpninger i form av rørst_-usser som ikke er forbundet med en hulaksel.I BRD-AS 2.207.144 er det beskrevet slissformete gassutløpsåpninger med relativt stor flate og i AT-AS 193.331 er det beskrevet profiler med U-formete, plane frontflater, hhv. strømlinjeform som gass-innføringsorgan. I M. Zlokarnik: "Chem.Ing.Techn." 38, 357 BRD-PS 863.656 describes an organ for gas introduction with gas outlet openings in the form of pipe nozzles which are not connected by a hollow shaft. BRD-AS 2.207.144 describes slot-shaped gas outlet openings with a relatively large surface and in AT-AS 193.331 profiles with U-shaped, flat front surfaces are described, or streamlined shape as gas introduction means. In M. Zlokarnik: "Chem.Ing.Techn." 38, 357

(1966) blir det beskrevet en rørrører hvis rette rør er skrått avskåret ved endene, for å danne kanter som skaper et sterkt sug. Alle disse kjente hulrørerne har den ulempe, at det er nødvendig med innsatser i rørearmene eller komplisert utforming av disse, for å lede gasstrykket hhv. en dirigert gasstråle inn i væska for å holde den ønskete gassinn-føringen. Kjente hulrørere er også lite egnet ti] dyrking av mikroorganismer under sterile betingelser, fordi en rensing og sterilisering av de kompliserte rørene, med mange hjørner, kanter og sveisefuger, er vanskelige å gjennomføre. Oppfinnelsens hovedoppgave er derfor å skape en hulrører, som med lavest mulig energiforbruk skaper en best mulig gassinnføring i ei væske, særlig ei gjæringssaft eller fermentasjonsvæske. Ifølge oppfinnelsens kan dette oppnås med et røre-organ som er utformet i samsvar med den karakteriserende delen av patentkrav 1. Ytterligere fordelaktige trekk ved oppfinnelsen er angitt i underkravene. Det har overraskende vist seg, at enkle, jevnt krummete rørbuer med sirkel-rund utløpsåpning, uten inn-sats, gir høy gasstilførsel med realtivt lavt energiforbruk. Bruken av normerte rørbuer utgjør en rimelig løsning. Oppfinnelsen beskrives nærmere under henvisning til tegningene. Fig. 1 viser et eksempel på utforming av oppfinnelsen i forbindelse med en reaksjon for gassing av ei væske. (1966) a pipe agitator is described whose straight pipes are bevelled at the ends to form edges which create a strong suction. All of these known hollow stirrers have the disadvantage that inserts are required in the stirrer arms or a complicated design of these to guide the gas pressure or a directed gas jet into the liquid to maintain the desired gas input. Known hollow stirrers are also not very suitable for the cultivation of microorganisms under sterile conditions, because cleaning and sterilization of the complicated pipes, with many corners, edges and welding joints, are difficult to carry out. The main task of the invention is therefore to create a hollow stirrer, which with the lowest possible energy consumption creates the best possible introduction of gas into a liquid, especially a fermentation juice or fermentation liquid. According to the invention, this can be achieved with a stirring device which is designed in accordance with the characterizing part of patent claim 1. Further advantageous features of the invention are indicated in the subclaims. It has surprisingly been shown that simple, evenly curved pipe bends with a circular outlet opening, without an insert, provide a high gas supply with relatively low energy consumption. The use of standardized pipe bends is a reasonable solution. The invention is described in more detail with reference to the drawings. Fig. 1 shows an example of the design of the invention in connection with a reaction for gassing a liquid.

Fig. 2 viser røreorganet i lengdesnitt. Fig. 2 shows the stirrer in longitudinal section.

Fig. 3 viser røreorganet i fig. 2 i tverrsnitt A-A. Fig. 3 shows the stirrer in fig. 2 in cross section A-A.

I en reaktorbeholder 1 er det innbygget et sentralt lede- eller styrerør 2. Ved lederørets 2 nedre ende er det tilkoblet et røreorgan 3 med hulaksel 4. Hulakselen 4 er via en drivarm 5 forbundet med en motor 6. Røreorganet 3 omfatter en stator, som består av ei øvre ringskive 7 og ei nedre ringskive 8, slik at det dannes en åpninq mellom ringskivene og hulakselen 4. Ved hjelp av en festeanordninq 9 er statoren festet på beholderens 1 kje.lebunn. A central guide or control pipe 2 is built into a reactor vessel 1. At the lower end of the guide pipe 2, a stirrer 3 with a hollow shaft 4 is connected. The hollow shaft 4 is connected via a drive arm 5 to a motor 6. The stirrer 3 comprises a stator, which consists of an upper ring disc 7 and a lower ring disc 8, so that an opening is formed between the ring discs and the hollow shaft 4. By means of a fastening device 9, the stator is fixed to the container 1 boiler bottom.

På den motsatte side av festeanordningen 9 blir statorens rinqskiver 7,8 holdt sammen ved hjelp av bo]ter 10 og muttere 11. Rotoren består av to eller flere rørearmer 12 formet som rørbend, hvilke er festet på hulakselen i inn-byrdes like avstander fra Hverandre. Rørearmenes 12 åpninger befinner seq omtrent i midten av statoren, oq blir derved dekket av ringskivene 7,8. Rørearmene 12 består av 90°-bend, slik at de hver framstiller en kvartsirkel. Rørearmene eller rørbendene 12 er ikke festet vinkelrett på hulakselen 4, men er forsatt fortrinnsvis 30°, i forhold til normalen. Mellom ringskivene er det på deres ytre kant-parti anbragt støtplater 13, som er fastgjort bare til ringskiva 8. On the opposite side of the fastening device 9, the stator rings 7,8 are held together by means of bolts 10 and nuts 11. The rotor consists of two or more stirrer arms 12 shaped like pipe bends, which are fixed to the hollow shaft at mutually equal distances from Each other. The stirrer arms' 12 openings are seq approximately in the middle of the stator, and oq is thereby covered by the ring discs 7,8. The stirring arms 12 consist of 90° bends, so that they each produce a quarter circle. The stirrer arms or pipe bends 12 are not attached perpendicular to the hollow shaft 4, but are offset preferably by 30°, in relation to the normal. Between the rings, on their outer edge part, shock plates 13 are placed, which are attached only to the ring disc 8.

Når røreorganet 3 er i drift, blir det over hulakselen 4 og drivremmen 5 drevet av motoren 6. Derved suges væske fra beholderen 1 gjennom åpningene i den øvre og nedre ringskive, hhv. 7 og 8, for å bli slynget ut av røre-armene 12 i retning av pilene. Dette skaper et undertrykk i hulakselen 4, slik at det suges inn luft som blandes inn i væska. Åpningene i rørearmene 12 er rettet motsatt omdreiningsretningen. Det har vist seg at en sirkulasjon med rørbend på 90° under samtidig lufting er særlig virkningsfull. Derved forhindrer støtplatene 13, som er plassert under en vinkel på 30°, en rotasjon inne i røre-organet 3 og fremmer således en svært sterk sammenblanding av væska med gassen. When the agitator 3 is in operation, it is driven over the hollow shaft 4 and the drive belt 5 by the motor 6. Thereby liquid is sucked from the container 1 through the openings in the upper and lower ring disc, respectively. 7 and 8, to be thrown out by the stirring arms 12 in the direction of the arrows. This creates a negative pressure in the hollow shaft 4, so that air is sucked in and mixed into the liquid. The openings in the stirring arms 12 are directed opposite to the direction of rotation. It has been shown that a circulation with pipe bends of 90° during simultaneous aeration is particularly effective. Thereby, the impact plates 13, which are placed at an angle of 30°, prevent a rotation inside the stirring member 3 and thus promote a very strong mixing of the liquid with the gas.

Måleresultater: Measurement results:

Røreorgan-rørearmen 0 370 mm (6 rørbend NW40) Stirrer-stirring arm 0 370 mm (6 pipe bends NW40)

Motorytelse: 10 kW Motor output: 10 kW

Motor: 10 kW, 1460 omdreininger pr. minutt Lufteaggregatets turtall: 1000 omdreininger pr. minutt Luftinnsuging (Nm 3 /time) og energibehov (kW/Nm"~ 4) i avhengighet av hydrostatisk trykk. Motor: 10 kW, 1460 revolutions per minute The speed of the air handling unit: 1000 revolutions per minute Air intake (Nm 3 /hour) and energy requirement (kW/Nm"~ 4) depending on hydrostatic pressure.

Anordningen ifølge oppfinnelsen egner seg særlig til aerob dyring av mikroorganismer. Den kan imidlertid også benyttes ved enhver annen gass-væskereaksjon som krever en intens gassing eller lufting. Luftesystemet er også velegnet i forbindelse med rensing av avvann. The device according to the invention is particularly suitable for aerobic cultivation of microorganisms. However, it can also be used for any other gas-liquid reaction that requires intense gassing or aeration. The air system is also suitable in connection with the purification of waste water.

Bokstavforklaring Letter explanation

H = væskesøylens høyde H = height of liquid column

Q = luftmengde Q = air volume

P = mottatt ytelse P = performance received

E = energibehov" E = energy demand"

Claims (5)

1. Hult røreorgan for tilføring av gass til væsker, særlig for innføring av en oksygenholdig gass, for aerob dyrking av mikroorganismer, med en hul drivaksel (4) og hule rørearmer (12) som tjener som tilførselsledninger for gass og som er bendformet buet mot rotasjonsretningen og er anbragt i et plan vinkelrett på rotasjonsaksen, karakterisert ved at rørearmene (12) dannes av jevnt krummete 9 0° rørbuer med sirkelformete utløps-åpninger ved endene, hvilke har samme innvendig tverrmål som rørbuene forøvrig.1. Hollow stirring device for supplying gas to liquids, in particular for introducing an oxygen-containing gas, for the aerobic cultivation of microorganisms, with a hollow drive shaft (4) and hollow stirring arms (12) which serve as supply lines for gas and which are bend-shaped curved towards direction of rotation and is arranged in a plane perpendicular to the axis of rotation, characterized by the pipe arms (12) being formed by evenly curved 90° pipe arches with circular outlet openings at the ends, which have the same internal cross-section as the rest of the pipe arches. 2. Røreorgan i samsvar med krav 1, karakterisert ved at rørearmene (12) er festet mellom ei faststående øvre ringskive (7) og ei faststående nedre ringskive (8).2. Stirring device in accordance with claim 1, characterized in that the stirring arms (12) are attached between a fixed upper ring disc (7) and a fixed lower ring disc (8). 3. Røreorgan i samsvar med krav 2, karakterisert ved at rørearmene (12) danner en vinkel på 30° i forhold til radialer på røreorganets (3) rotasjonsakse.3. Agitator in accordance with claim 2, characterized in that the agitator arms (12) form an angle of 30° in relation to radials on the axis of rotation of the agitator (3). 4. Røreorgan i samsvar med et av kravene 1-3, karakterisert ved at det omfatter to eller flere motstående rørearmer (12).4. Agitator in accordance with one of claims 1-3, characterized in that it comprises two or more opposite agitator arms (12). 5. Røreorgan i samsvar med et av kravene 1-4, karakterisert ved at det på det ytre kant-parti på den nedre ringskiva (8) er festet støtplater (13).5. Agitator in accordance with one of claims 1-4, characterized in that impact plates (13) are attached to the outer edge part of the lower ring disc (8).
NO801499A 1979-06-01 1980-05-21 HULT PUBLIC ORGAN FOR SUPPLYING GAS TO LIQUIDS NO151543C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH512479A CH645280A5 (en) 1979-06-01 1979-06-01 DEVICE FOR GASING A LIQUID.

Publications (3)

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NO801499L NO801499L (en) 1980-12-02
NO151543B true NO151543B (en) 1985-01-14
NO151543C NO151543C (en) 1985-05-02

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NO801499A NO151543C (en) 1979-06-01 1980-05-21 HULT PUBLIC ORGAN FOR SUPPLYING GAS TO LIQUIDS

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EP (1) EP0021470B1 (en)
AT (1) ATE5234T1 (en)
CH (1) CH645280A5 (en)
DE (1) DE3065509D1 (en)
NO (1) NO151543C (en)

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HU207669B (en) * 1991-02-01 1993-05-28 Richter Gedeon Vegyeszet Complex mixing apparatus for dispersing gases in fluid
US5431860A (en) * 1991-02-01 1995-07-11 Richter Gedeon Vegyeszeti Gyar Rt. Complex mixing device for dispersion of gases in liquid
CH686874A5 (en) * 1992-01-31 1996-07-31 V Zug Ag Device for introducing a gas into a liquid.
FI91242C (en) * 1992-07-17 1994-06-10 Outokumpu Mintec Oy The aerator
US5738807A (en) * 1996-09-24 1998-04-14 Daewoo Electronics Co. Ltd Air bubble generating apparatus
DE29818255U1 (en) * 1998-10-13 2000-02-17 Ekato Ruehr Mischtechnik Self-priming, rotating dispersing device
DE102004047560B3 (en) 2004-09-30 2006-02-16 Clausthaler Umwelttechnikinstitut Gmbh, (Cutec-Institut) Biogas measuring device and method for measuring biogas volume
DE102010004206A1 (en) 2009-06-08 2010-12-09 EKATO Rühr- und Mischtechnik GmbH Rühranrodnung
CN110117536A (en) * 2019-06-14 2019-08-13 纳来创硕湖北生物科技有限公司 The saccharification system and method for saccharifying of starch sugar
CN110980980A (en) * 2019-10-24 2020-04-10 山东尤根环保科技有限公司 Jet type air-water mixed waste liquid and wastewater treatment device

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Publication number Priority date Publication date Assignee Title
DE863656C (en) * 1950-06-08 1953-01-19 Henkel & Cie Gmbh Method and device for the treatment of liquids with gaseous substances
AT189148B (en) * 1952-02-02 1957-02-25 Weinessigfabrik Anton Enenkel Aerating device for liquids
AT193331B (en) * 1953-02-24 1957-11-25
DE2207144A1 (en) * 1972-02-16 1973-08-30 Schoeller Bleckmann Stahlwerke Liquid aerating appts - using vanes with determined gas exit width to vane width ratio
GB2001252A (en) * 1977-06-24 1979-01-31 Kamocki J A mixer for air entrained concrete or ordinary concrete

Also Published As

Publication number Publication date
DE3065509D1 (en) 1983-12-15
CH645280A5 (en) 1984-09-28
NO151543C (en) 1985-05-02
EP0021470B1 (en) 1983-11-09
NO801499L (en) 1980-12-02
ATE5234T1 (en) 1983-11-15
EP0021470A1 (en) 1981-01-07

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