CH621263A5 - Appliance for mixing gases into liquids - Google Patents

Appliance for mixing gases into liquids Download PDF

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Publication number
CH621263A5
CH621263A5 CH631677A CH631677A CH621263A5 CH 621263 A5 CH621263 A5 CH 621263A5 CH 631677 A CH631677 A CH 631677A CH 631677 A CH631677 A CH 631677A CH 621263 A5 CH621263 A5 CH 621263A5
Authority
CH
Switzerland
Prior art keywords
guide tube
gas
chips
nozzle
internals
Prior art date
Application number
CH631677A
Other languages
German (de)
Inventor
Hans Dr Ing Mueller
Original Assignee
Chemap Ag
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 Chemap Ag filed Critical Chemap Ag
Priority to CH631677A priority Critical patent/CH621263A5/en
Publication of CH621263A5 publication Critical patent/CH621263A5/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
    • C02F3/10—Packings; Fillings; Grids
    • 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
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • B01F23/232311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit the conduits being vertical draft pipes with a lower intake end and an upper exit end
    • 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
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4524—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through foam-like inserts or through a bed of loose bodies, e.g. balls
    • 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
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4524—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through foam-like inserts or through a bed of loose bodies, e.g. balls
    • B01F25/45242—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through foam-like inserts or through a bed of loose bodies, e.g. balls through a bed of fibres, steel wool or wood chips
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/3203—Gas driven
    • 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
    • C02F3/06—Aerobic processes using submerged filters
    • 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
    • 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
    • C12M27/22—Perforated plates, discs or walls
    • 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
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
    • C12M29/08—Air lift
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/32015—Flow driven
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Biomedical Technology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Genetics & Genomics (AREA)
  • Dispersion Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)

Abstract

In the appliance a coaxial draft tube (8) is arranged which in its lower part has a gas supply (10) and in its upper part a gas discharge (7). For the purpose of better utilisation of a gas employed in the process, the draft tube (8) is charged with sharp-edged chips (16) of metal or plastic. Within the draft tube, fittings (17) which are permeable for the gas and the liquid are provided for dividing the draft tube into two or more sections in order thus to prevent compression of the chips. <IMAGE>

Description

       

   
 



   Die Einbauten können vorzugsweise aus Sieben oder Lochplatten bestehen, wobei die Art der Öffnungen nicht kritisch ist. Wichtig ist allein, dass keine Späne durchtreten und die Öffnungen den Gas- und Flüssigkeitsdurchtritt nicht behindern. 



   
 



   The internals can preferably consist of sieves or perforated plates, the type of openings not being critical. The only important thing is that no chips pass through and the openings do not hinder the passage of gas and liquid.

Claims (4)

PATENTANSPRÜCHE 1. Vorrichtung zum Begasen von Flüssigkeiten, mit einem mit Spänen ausgefüllten Leitrohr, dadurch gekennzeichnet, dass innerhalb des Leitzylinders (8) scheibenförmige, für Gas und Flüssigkeit durchlässige Einbauten (17) zur Aufteilung in zwei oder mehrere Abteilungen angebracht sind.  PATENT CLAIMS 1. Device for gassing liquids, with a guide tube filled with shavings, characterized in that inside the guide cylinder (8) disk-shaped, gas and liquid permeable internals (17) are attached for division into two or more departments. 2. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass die Einbauten (17) aus Sieben bestehen.  2. Device according to claim 1, characterized in that the internals (17) consist of sieves. 3. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass die Einbauten (17) aus perforierten Platten bestehen.  3. Device according to claim 1, characterized in that the internals (17) consist of perforated plates. 4. Vorrichtung nach Patentanspruch 1, gekennzeichnet durch eine Ausbildung als Schleifenreaktor.  4. Device according to claim 1, characterized by training as a loop reactor. Gegenstand der Erfindung ist eine Vorrichtung zum Begasen von Flüssigkeiten.  The invention relates to a device for gassing liquids. Es gibt einen Schlaufenreaktor, dessen koaxial angebrachtes Leitrohr mit Spänen ausgefüllt ist.  There is a loop reactor, the coaxially attached guide tube of which is filled with chips. Solche Reaktoren haben sich als Technikumsanlagen bis zu gewissen Dimensionen bewährt. Werden jedoch höhere Behälter mit entsprechend grösseren Leitrohren mit Spänen beschickt, steigt der Druck der Späne auf die unteren Schichten derart an, dass diese zusammengedrückt werden und somit dem Luftdurchtritt einen hohen Widerstand entgegensetzen.  Such reactors have proven themselves as pilot plants up to certain dimensions. If, however, larger containers with correspondingly larger guide tubes are loaded with chips, the pressure of the chips on the lower layers increases in such a way that they are pressed together and thus offer a high resistance to the passage of air. Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, die ein Zusammendrücken der Späne im unteren Teil des Leitrohres verhindert und den Luftdurchtritt nicht behindert und somit die Begasung des Mediums verbessert.  The object of the invention is to provide a device which prevents the chips in the lower part of the guide tube from being compressed and does not hinder the passage of air and thus improves the gassing of the medium. Die Lösung erfolgt erfindungsgemäss nach Patentanspruch 1 durch eine Vorrichtung, die dadurch gekennzeichnet ist, dass innerhalb des Leitzylinders scheibenförmige, für Gas und Flüssigkeit durchlässige Einbauten zur Aufteilung in zwei oder mehrere Abteilungen angebracht sind.  According to the invention, the solution is achieved by a device which is characterized in that disk-shaped internals which are permeable to gas and liquid are arranged within the guide cylinder for division into two or more departments. Bei der Abtrennung in einzelne Abteilungen ist es wichtig, dass die Einbauten so grosse Durchlässe aufweisen, dass sowohl der Gas- als auch der Flüssigkeitsdurchtritt weitgehend ungehindert erfolgen kann.  When separating into individual departments, it is important that the internals have such large passages that both gas and liquid can pass through largely unhindered. Ein Ausführungsbeispiel der Vorrichtung soll anhand einer Zeichnung näher beschrieben werden.  An embodiment of the device will be described with reference to a drawing. In der einzigen Figur besteht der Reaktor aus einem zylindrischen Kessel 1 mit einem.Doppelmantel 2. Der Kessel 1 ist auf Stützen 3 aufgestellt und besitzt einen Eintrittstutzen 4 für das zu begasende Medium und einen Austrittstutzen 5 für das Reaktionsprodukt. Ein weiterer Stutzen 6 ist für die Zuluft und ein Stutzen 7 im Kopf des Reaktors für die Abluft vorgesehen. Im Innern des Behälters befindet sich das koaxial angebrachte Leitrohr 8 mit einem perforierten Einbau 9, der den gesamten Querschnitt einnimmt. Ein Belüftungsringrohr 10 weist mit seinen Gasaustrittsöffnungen in den Leitrohrquerschnitt hinein. Ein gleicher Einbau 11 verschliesst das Leitrohr 8 8 gegen oben. Das Innere des Leitrohres 8 ist vollständig mit Spänen 6 ausgefüllt. Der Kühlmantel ist mit einem Eintritt 12 und einem Austritt 13 versehen.  In the single figure, the reactor consists of a cylindrical vessel 1 with a double jacket 2. The vessel 1 is set up on supports 3 and has an inlet nozzle 4 for the medium to be gassed and an outlet nozzle 5 for the reaction product. Another nozzle 6 is provided for the supply air and a nozzle 7 in the head of the reactor for the exhaust air. Inside the container is the coaxially mounted guide tube 8 with a perforated installation 9, which takes up the entire cross section. A ventilation ring tube 10 points with its gas outlet openings into the guide tube cross section. The same installation 11 closes the guide tube 8 8 towards the top. The interior of the guide tube 8 is completely filled with chips 6. The cooling jacket is provided with an inlet 12 and an outlet 13. Das Leitrohr 8 ist in bekannter Weise durch Verstrebungen 14 und 15 befestigt und lediglich durch horizontale Einbauten 17 in zwei oder mehrere Abteilungen unterteilt. The guide tube 8 is fastened in a known manner by struts 14 and 15 and only divided into two or more departments by horizontal fittings 17. Im Betrieb wird der Reaktor, der beispielsweise mit Mikroorganismen und einem handelsüblichen Nährsubstrat versehen ist, durch gereinigte und wenn erforderlich sterile Druckluft über die Zuluftleitung 6 und die Ringleitung 10 begast. Dabei steigen Gas und flüssiges Medium durch die Mammutpumpenwirkung nach oben. An den scharfen Kanten der Späne werden koaleszierende Gasblasen bei genügend hoher Strömungsgeschwindigkeit immer wieder zerteilt und somit deren Oberfläche vergrössert. Das Lochblech 11 im oberen Teil des Leitrohres verhindert ein Austreten der Späne und lässt nur das begaste Medium hindurchtreten. Im Dom des Behälters trennt sich überschüssiges Gas und verlässt als Abgas über den Stutzen 7 den Kessel 1.  In operation, the reactor, which is provided, for example, with microorganisms and a commercially available nutrient substrate, is gassed with cleaned and, if necessary, sterile compressed air via the supply air line 6 and the ring line 10. The gas and liquid medium rise due to the mammoth pump effect. On the sharp edges of the chips, coalescing gas bubbles are broken up again and again at a sufficiently high flow rate, thus increasing their surface area. The perforated plate 11 in the upper part of the guide tube prevents the chips from escaping and only allows the fumigated medium to pass through. Excess gas separates in the dome of the container and leaves the boiler 1 as exhaust gas via the nozzle 7. Die flüssige Phase hingegen fällt durch die Schwerkraft über den oberen Rand des Leitrohres zwischen letzterem und der Kesselwand hinab und wird erneut durch das über den Ring 10 austretende Gas durch das Leitrohr 8 gefördert. Bei einer kontinuierlichen Arbeitsweise wird ständig ein bestimmter Teil der begasten Lösung über den Stutzen 5 aus dem Kessel 1 abgezogen, während neues unbegastes Medium über den Eintritt 4 nachgeführt werden kann. Die Einbauten 17 verhindern, dass das Gewicht der Späne nicht nur auf den untersten Einbau 9 wirkt, sondern gleichmässig über die gesamte Säule des Leitrohrs verteilt wird.  By contrast, the liquid phase falls by gravity over the upper edge of the guide tube between the latter and the boiler wall and is again conveyed through the guide tube 8 by the gas emerging via the ring 10. In a continuous mode of operation, a certain part of the fumigated solution is continuously withdrawn from the boiler 1 via the nozzle 5, while new ungased medium can be added via the inlet 4. The baffles 17 prevent the weight of the chips from acting not only on the bottom bunk 9 but also being distributed evenly over the entire column of the guide tube.
CH631677A 1977-05-23 1977-05-23 Appliance for mixing gases into liquids CH621263A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH631677A CH621263A5 (en) 1977-05-23 1977-05-23 Appliance for mixing gases into liquids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH631677A CH621263A5 (en) 1977-05-23 1977-05-23 Appliance for mixing gases into liquids

Publications (1)

Publication Number Publication Date
CH621263A5 true CH621263A5 (en) 1981-01-30

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CH631677A CH621263A5 (en) 1977-05-23 1977-05-23 Appliance for mixing gases into liquids

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991001279A1 (en) * 1989-07-20 1991-02-07 Cofido Societe Cooperative Immersible biological filter for the purification of waste water
EP0477831A1 (en) * 1990-09-26 1992-04-01 Andrew David Worthington Liquid purification apparatus and method of purification

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991001279A1 (en) * 1989-07-20 1991-02-07 Cofido Societe Cooperative Immersible biological filter for the purification of waste water
BE1003962A3 (en) * 1989-07-20 1992-07-28 Gilson Robert Filter for treatment underwater biological wastewater.
US5380439A (en) * 1989-07-20 1995-01-10 Cofido S.A. Submersible biological filter for the purification of waste water
EP0477831A1 (en) * 1990-09-26 1992-04-01 Andrew David Worthington Liquid purification apparatus and method of purification

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