NO743759L - - Google Patents

Info

Publication number
NO743759L
NO743759L NO743759A NO743759A NO743759L NO 743759 L NO743759 L NO 743759L NO 743759 A NO743759 A NO 743759A NO 743759 A NO743759 A NO 743759A NO 743759 L NO743759 L NO 743759L
Authority
NO
Norway
Prior art keywords
liquid
pipe
container
propeller
hollow shaft
Prior art date
Application number
NO743759A
Other languages
Norwegian (no)
Inventor
S G Haeggblom
E Baum
Original Assignee
Alfa Laval Ab
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 Alfa Laval Ab filed Critical Alfa Laval Ab
Publication of NO743759L publication Critical patent/NO743759L/no

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C3/00—Treating manure; Manuring
    • A01C3/02—Storage places for manure, e.g. cisterns for liquid manure; Installations for fermenting manure
    • A01C3/026—Storage places for manure, e.g. cisterns for liquid manure; Installations for fermenting manure with mixing or agitating devices
    • 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
    • B01F23/2334—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
    • B01F23/2335—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
    • B01F23/23351—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 along 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
    • B01F23/23353—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 sucked towards 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
    • B01F23/233—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
    • B01F23/23363—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 above the stirrer
    • 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
    • C02F3/207—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors with axial thrust 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
    • B01F27/05—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
    • 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)
  • Soil Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Environmental Sciences (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Description

"Anordning for luftbehandling av skummende væsker." "Device for air treatment of foaming liquids."

Foreliggende oppfinnelse går'ut på en anordning for luftbehandling av skummende væsker i beholdere, f. eks. latrine- eller gjødselgroper og liknende med en i beholderen nedsenket, med driv-motor forbundet, hul aksel som ved den enden som ligger motsatt motoren er forsynt med en propeller og åpninger for utslipping av gjennom den hule aksel tilført luft. Ved denne kjente anordning omrøres den i beholderen værende væské krjaftig og luft blåses inn i denne. Luften strømmer gjennom væsken i form av bobler og sam-ler seg deretter ved væskeoverflaten som skum. Ved omrøringen under lufttilførsel drepes etter noen tid de i væsken forekommende sykdomsfrembringende mikroorganismer og det oppnåes en reduksjon eller eliminering av væskens lukt. Denne kjente anordning har den ulempe at det dels dannes et høyt skumskikt ovenfor væskeoverflaten,.dels at propelleren ikke frembringer en strømning som omvelter samtlige skikt i væsken, hvorfor omrøringen må opprett-holdes i en forholdsvis lang tid. The present invention concerns a device for air treatment of foaming liquids in containers, e.g. latrine or manure pits and the like with a hollow shaft submerged in the container, connected to the drive motor, which at the end opposite the motor is equipped with a propeller and openings for discharging air supplied through the hollow shaft. With this known device, the liquid in the container is vigorously stirred and air is blown into it. The air flows through the liquid in the form of bubbles and then collects at the liquid surface as foam. By stirring under air supply, the disease-causing microorganisms present in the liquid are killed after some time and a reduction or elimination of the liquid's smell is achieved. This known device has the disadvantage that partly a high layer of foam is formed above the liquid surface, partly that the propeller does not produce a flow which overturns all layers in the liquid, which is why the stirring must be maintained for a relatively long time.

For minskning eller tilintetgjørelse av skumskitet ovenpå væsken har det allerede vært foreslått å anordne en stiv aksel inne i et rør som er dyppet ned i væsken og som bærer propelleren, idet den enden av akslen som ligger motsatt drivmotoren befinner seg over væskeoyerflaten. Ved denne kjente utfø-relse blåses luften av propelleren gjennom røret inn i væsken og samtidig bortsuges det skum som flyter på væskeover f laten.. Denne kjente anordning har den ulempe at det ikke frembringes noen sirkulerende strømning av væsken og' ingen tilfredsstillende til-førsel av luft, hvorfor den ønskede luktminskende effekt kan oppnåes bare meget langsomt. In order to reduce or destroy the scum on top of the liquid, it has already been proposed to arrange a rigid shaft inside a tube which is immersed in the liquid and which carries the propeller, the end of the shaft which is opposite the drive motor being above the surface of the liquid. In this known design, the air is blown by the propeller through the pipe into the liquid and at the same time the foam that floats on the surface of the liquid is sucked away. This known device has the disadvantage that no circulating flow of the liquid is produced and no satisfactory supply of air, which is why the desired odor-reducing effect can only be achieved very slowly.

Formålet med oppfinnelsen er å eliminere ulempene ved denne kjente anordning. Ifølge oppfinnelsen oppnåes dette ved at den hule aksel omgis av et i begge ender åpent rør, og den ende av røret som vender mot motoren er anordnet til i det minste delvis å ligge under nivået av den væske som befinner seg i beholderen, for at skum skal kunne innsuges i den åpning av røret som befinner seg ved væskeoverflaten og innføres i væsken, ifølge en foretruk-ket utførelsesform for oppfinnelsen er den mot motoren vendte ende av røret avskrånet. For oppnåelse av et rolig forløp og for å The purpose of the invention is to eliminate the disadvantages of this known device. According to the invention, this is achieved by the hollow shaft being surrounded by a tube open at both ends, and the end of the tube facing the engine is arranged to be at least partially below the level of the liquid in the container, so that foam must be able to be sucked into the opening of the pipe which is located at the liquid surface and introduced into the liquid, according to a preferred embodiment of the invention, the end of the pipe facing the engine is bevelled. To achieve a calm course and to

unngå rysting av det stativ som bærer anordningen, foreslåesavoiding shaking of the rack that carries the device is suggested

det videre ifølge oppfinnelsen at røret sammen med motoren og akslen som bærer propelleren er fritt opphengt, i et holderorgan som er anordnet over beholderen. it is further according to the invention that the tube together with the motor and the shaft which carries the propeller is freely suspended in a holder which is arranged above the container.

Oppfinnelsen skal beskrives nærmere i det følgende under henvisning til vedlagte tegning, som viser et vertikalsnitt gjennom en som eksempel valgt utførelse av foreliggende anordning. The invention shall be described in more detail below with reference to the attached drawing, which shows a vertical section through an embodiment of the present device chosen as an example.

En f. eks. av betong bestående beholder 1 er fylt med flytende gjødsel 2. Over væskenivået er et skumskikt 8. I væsken er nedsenket et rør 6, hvis ende av avskrånet i væskenivåets om-råde, slik at såvel væske som skum kan strømme inn i rørets øvre åpning. I røret er anordnet en propeller 7, som ved hjelp av en hul aksel 5 drives av en motor 3. Røret 6 bæres av stenger 9, som er festet i motorhuset. Den av motoren, akslen,propelleren og røret dannede enhet bæres av en kardanlenke 4. Akslen er i nær heten av motoren forsynt med åpninger 10 og i nærheten av propelleren med åpninger 11 for innsuging resp. utblåsing av luft. An e.g. container 1 consisting of concrete is filled with liquid fertilizer 2. Above the liquid level is a layer of foam 8. A pipe 6 is immersed in the liquid, the end of which is sloped in the area of the liquid level, so that both liquid and foam can flow into the upper opening of the pipe . A propeller 7 is arranged in the pipe, which is driven by a motor 3 by means of a hollow shaft 5. The pipe 6 is supported by rods 9, which are fixed in the motor housing. The unit formed by the engine, shaft, propeller and pipe is supported by a gimbal link 4. The shaft is provided with openings 10 near the engine and with openings 11 near the propeller for suction resp. blowing out of air.

Når propelleren roterer innsuges såvel væske som skum gjennom den øvre åpning av røret 6. Ved utløpsenden av røret medbringes den gjjennom akslens P^låpninger 10 innsugede luft av den i rørets aksiale retning gående strømning. På tegningen antydes væskestrømningen ved helt opptrukne linjer -og luftboblenes bevegelse med strekete piler. Av tegningen fremgår at hele væske-mengden veltes om mellom bunnen av beholderen og væskeoverflaten, og anrikes med luft. When the propeller rotates, both liquid and foam are sucked in through the upper opening of the tube 6. At the outlet end of the tube, the air sucked in through the shaft's P^lap openings 10 is carried along by the flow going in the axial direction of the tube. In the drawing, the liquid flow is indicated by solid lines - and the movement of the air bubbles by dashed arrows. The drawing shows that the entire amount of liquid is turned over between the bottom of the container and the liquid surface, and is enriched with air.

Claims (3)

1. Anordning for luftbehandling av skummende væsker i beholdere, f. eks. latrine- eller gjødselgroper og liknende, med en i beholderen nedsenket, med drivmotoren forbundet, hul aksel, som ved den ende som ligger motsatt motoren er forsynt med en propeller /3g åpninger for utslipping av igjennom den hule aksel tilført luft, karakterisert ved at den hule aksel (U^5) er omgitt av et i begge ender åpent rør (6) hvis mot motoren (3) vendende ende er anordnet til i det minste delvis å ligge under nivået for den i beholderen (1) værende væske (2) for at skum skal kunne innsuges i rørets ved væskeoverflaten liggende åpning og innføres i væsken.1. Device for air treatment of foaming liquids in containers, e.g. latrine or manure pits and the like, with a hollow shaft submerged in the container, connected to the drive motor, which at the end opposite the motor is provided with a propeller /3g openings for discharging air supplied through the hollow shaft, characterized in that the hollow shaft (U^5) is surrounded by a pipe (6) open at both ends, the end facing the engine (3) is arranged to lie at least partially below the level of the liquid (2) in the container (1) so that foam can be sucked into the tube's opening at the liquid surface and introduced into the liquid. 2. Anordning som angitt i kra <y> 1, karakterisert v e d at den mot motoren vendende ende av røret (6) er avskrånet.2. Device as stated in claim <y> 1, characterized in that the end of the pipe (6) facing the engine is bevelled. 3. Anordning som angitt i krav 1 eller 2, karakterisert ved at røret (6) sammen med motoren (3) og akslen (5) som bærer propelleren (7) er fritt opphengt i et over beholderen anordnet holderorgan (4).3. Device as stated in claim 1 or 2, characterized in that the pipe (6) together with the motor (3) and the shaft (5) which carries the propeller (7) is freely suspended in a holding member (4) arranged above the container.
NO743759A 1973-10-18 1974-10-17 NO743759L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT886773A AT327830B (en) 1973-10-18 1973-10-18 DEVICE FOR FASTENING FOAMABLE LIQUIDS IN SUMMARY, DUNGE PITS OR DGL.

Publications (1)

Publication Number Publication Date
NO743759L true NO743759L (en) 1975-05-12

Family

ID=3609209

Family Applications (1)

Application Number Title Priority Date Filing Date
NO743759A NO743759L (en) 1973-10-18 1974-10-17

Country Status (5)

Country Link
AT (1) AT327830B (en)
DE (1) DE2449212A1 (en)
FR (1) FR2248078A1 (en)
NO (1) NO743759L (en)
SE (1) SE7412823L (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT348454B (en) * 1975-12-30 1979-02-26 Poepel Dr Ing Franz DEVICE FOR GASIFICATION OF LIQUID
DE2714308A1 (en) * 1977-03-31 1978-10-05 Horst Ing Grad Schade Appts. for circulating and aerating un-clarified liq. esp. waste water - comprising an inverted conical rotor with air and water mixing passages
DE2933784C2 (en) * 1979-08-21 1986-02-27 Suma Sulzberger Maschinenbau Gmbh & Co Kg, Gerhard Thuerwaechter, 8961 Sulzberg Slurry mixer
US4328175A (en) * 1979-10-02 1982-05-04 Union Carbide Corporation Apparatus for contacting a liquid with a gas
EP0027912A1 (en) * 1979-10-02 1981-05-06 Union Carbide Corporation Apparatus for contacting liquid with a gas
DE3130597C2 (en) * 1981-08-01 1986-07-24 Klöckner-Werke AG, 4100 Duisburg Method and device for gassing a liquid
DE3200701A1 (en) * 1982-01-13 1983-07-28 Durst, Franz J., Prof.Dr., 7507 Pfinztal METHOD AND DEVICE FOR FUMING AND CIRCULATING LIQUIDS
HU188312B (en) * 1982-03-15 1986-04-28 Dunantuli Regionalis Vizmue Es Vizgazdalkodasi Vallalat,Hu Mixing aerating device
DE3814649C1 (en) * 1988-04-29 1989-04-13 Harald Feldkirch At Purkathofer
SE469073B (en) * 1991-06-28 1993-05-10 Alfa Laval Agri Int METHOD OF PROCEDURES FOR THE PROCESSING OF PREDICTED WIRES
DE10120111A1 (en) * 2001-04-25 2002-11-07 Fachhochschule Oldenburg Ostfr Delivery of oxygen into the depths of water, and other liquids, uses a free stream of a gas-rich fluid passed into the lower levels
CN110026103B (en) * 2019-03-20 2021-10-19 中铁四局集团有限公司 Small-size shield constructs with foaming agent production facility

Also Published As

Publication number Publication date
AT327830B (en) 1976-02-25
ATA886773A (en) 1975-04-15
DE2449212A1 (en) 1975-04-24
FR2248078A1 (en) 1975-05-16
FR2248078B1 (en) 1976-10-22
SE7412823L (en) 1975-04-21

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