SE453464B - AIR FOR MIXING AIR OR OTHER GASES IN A FLUID - Google Patents

AIR FOR MIXING AIR OR OTHER GASES IN A FLUID

Info

Publication number
SE453464B
SE453464B SE8502536A SE8502536A SE453464B SE 453464 B SE453464 B SE 453464B SE 8502536 A SE8502536 A SE 8502536A SE 8502536 A SE8502536 A SE 8502536A SE 453464 B SE453464 B SE 453464B
Authority
SE
Sweden
Prior art keywords
propeller
aerator
venturi nozzle
liquid
air
Prior art date
Application number
SE8502536A
Other languages
Swedish (sv)
Other versions
SE8502536L (en
SE8502536D0 (en
Inventor
A Olgaard
Original Assignee
Landia As
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 Landia As filed Critical Landia As
Publication of SE8502536L publication Critical patent/SE8502536L/en
Publication of SE8502536D0 publication Critical patent/SE8502536D0/en
Publication of SE453464B publication Critical patent/SE453464B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2332—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements the stirrer rotating about a horizontal axis; Stirrers therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2335—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
    • B01F23/23367—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced behind the stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/25—Mixers with both stirrer and drive unit submerged in the material being mixed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2554/00—Input parameters relating to objects
    • B60W2554/40—Dynamic objects, e.g. animals, windblown objects
    • B60W2554/404—Characteristics
    • B60W2554/4043—Lateral speed

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)

Description

453 464 2 begränsad vätskemängd för uppnående av en kraftig luft- ning. Luften rives med av vätskeströmmen och ytterligare luftning sker i området kring propellern. Dysan åstadkom- mer en riktad vätskeström, och således kommer den luftade vätskan att fördelas jämt i en behållare och kommer inte omedelbart att sugas tillbaka in i dysan. Effektiv luft- ning sker genom att lufttillförselorganet mynnar i det område där propellern skapar det största undertrycket, dvs i eller före venturidysans utloppsöppning, som är belägen intill propellerbladens rotationsyta. 453 464 2 limited amount of liquid to achieve a strong aeration. The air is entrained by the liquid stream and further aeration takes place in the area around the propeller. The nozzle provides a directed flow of liquid, and thus the aerated liquid will be evenly distributed in a container and will not be immediately sucked back into the nozzle. Effective aeration takes place by the air supply means opening into the area where the propeller creates the greatest negative pressure, ie in or before the outlet opening of the venturi nozzle, which is located next to the rotation surface of the propeller blades.

Om luftaren monteras horisontellt vridbar och höjd- förskjutbar i behållaren kan god cirkulation i kärlet säkerställas.If the aerator is mounted horizontally rotatable and height-displaceable in the container, good circulation in the vessel can be ensured.

I det följande kommer uppfinningen att beskrivas med hänvisning till ritningarna, där fig 1 visar en luftare enligt uppfinningen, delvis i genomskärning, visar en luftare placerad i ett behandlings- kärl, visar en genomskärning av kärlet i fig 2 sett i pilarnas riktning längs linjen III-III, och visar en annan utföringsform av en luftare. fig 2 fig 3 fig 4 Fig 1 visar en luftare enligt uppfinningen. Denna består av en motor l som är inkapslad för att tåla dränk- ning och kan vara en elmotor. På motorns 1 utgångsaxel 6 är en propeller 4 fäst medelst skruvar och roterbar med hjälp av motorn l.In the following, the invention will be described with reference to the drawings, where Fig. 1 shows an aerator according to the invention, partly in section, shows an aerator placed in a treatment vessel, shows a cross-section of the vessel in Fig. 2 seen in the direction of the arrows along line III -III, showing another embodiment of an aerator. Fig. 2 Fig. 3 Fig. 4 Fig. 1 shows an aerator according to the invention. This consists of a motor l which is encapsulated to withstand drowning and can be an electric motor. On the output shaft 6 of the motor 1, a propeller 4 is fastened by means of screws and rotatable by means of the motor 1.

Runt axeln 6 är en venturidysa 2 eller en venturi- skärm fastsatt med hjälp av fyra byglar 3. En luftslang 5, som står i förbindelse med atmosfären eller är anslu- ten till en tryckflaska med t ex syrgas, mynnar i dysans 2 i vätskeströmmens riktning räknat bakre ände så att vätskeflödet genom medrivning kommer att suga luft ge- nom slangen 5. Således behövs ingen separat luftpump.Around the shaft 6 is a venturi nozzle 2 or a venturi screen fixed by means of four stirrups 3. An air hose 5, which is in communication with the atmosphere or is connected to a pressure bottle with eg oxygen, opens into the nozzle 2 in the direction of the liquid flow. calculated rear end so that the liquid flow through entrainment will suck air through the hose 5. Thus, no separate air pump is needed.

Den visade propellern är fyrbladig men andra typer kan också användas.The propeller shown is four-bladed, but other types can also be used.

Fig 2 och 3 visar hur luftaren enligt uppfinningen 10 15 20 25 30 35 453 464 3 kan placeras i ett behandlingskärl 7 fyllt med en vätska 12 som skall luftas. I kärlet 7 är en vertikal, cirkulär stång 8 fastsatt, omgiven av en rörformig del ll, på vilken motorn 1 är fastsatt. Med hjälp av en lina 9, som är fäst vid motorn 1, och en vinsch 10 kan motorn höjas och sänkas. Motorn l kan exempelvis placeras på en höjd där den befinner sig mittemellan vätskeytan och kärlets 7 botten.Figures 2 and 3 show how the aerator according to the invention can be placed in a treatment vessel 7 filled with a liquid 12 to be aerated. In the vessel 7 a vertical, circular rod 8 is attached, surrounded by a tubular part 11, to which the motor 1 is attached. By means of a rope 9, which is attached to the motor 1, and a winch 10, the motor can be raised and lowered. The motor 1 can, for example, be placed at a height where it is located between the liquid surface and the bottom of the vessel 7.

Då såväl stången 8 som den rörformiga delen ll har cirkulär tvärsektion kan motorn l också vridas. Genom att låta motorn l peka utåt i riktning mot en av kärlets 7 sidor uppnås effektiv cirkulation i kärlet. Alterna- tivt kan luftaren automatiskt svänga mellan två ytter- lägen.Since both the rod 8 and the tubular part 11 have a circular cross section, the motor 1 can also be rotated. By allowing the motor 1 to point outwards in the direction of one of the 7 sides of the vessel, efficient circulation in the vessel is achieved. Alternatively, the aerator can automatically swing between two outer positions.

Fig 4 visar en annan utföringsform av en luftare enligt uppfinningen. I denna utföringsform mynnar luft- intagsöppningarna 5 omedelbart före propellern 4, varvid propellern i detta område skapar det största undertryc- ket när den roterar. Således uppnås en mycket god sug- kapacitet så att luftaren kan arbeta på avsevärda djup.Fig. 4 shows another embodiment of an aerator according to the invention. In this embodiment, the air intake openings 5 open immediately before the propeller 4, the propeller in this area creating the greatest negative pressure when it rotates. Thus a very good suction capacity is achieved so that the aerator can work at considerable depths.

Luftaren enligt uppfinningen kan användas för luft- ning av alla slags vätskor med alla typer av gaser. Pro- pellern och dysan kan användas även i fallet med tjock- flytande eller klumpar innehållande vätskor, såsom slam, förutsatt att propellern och dysan är utformade för detta ändamål.The aerator according to the invention can be used for aerating all kinds of liquids with all types of gases. The propeller and nozzle can also be used in the case of thick liquids or lumps containing liquids, such as sludge, provided that the propeller and nozzle are designed for this purpose.

Behandlingskärlet kan vara utformat på olika sätt men ett runt eller elliptiskt kärl möjliggör jämn cirku- lation däri.The treatment vessel can be designed in different ways, but a round or elliptical vessel enables even circulation therein.

Det skall dessutom nämnas att propellern och dysan kan framställas av plast för att uppfylla detta ändamål.It should also be mentioned that the propeller and nozzle can be made of plastic to fulfill this purpose.

Härigenom, och på grund av den enkla utformningen erhål- les en luftare med mycket enkel konstruktion som således är billig att framställa.In this way, and due to the simple design, an aerator with a very simple construction is obtained, which is thus cheap to manufacture.

Dessutom bör det tilläggas att fastän luftaren en- ligt uppfinningen beskrivs i ett arbetsläge där propel- leraxeln är horisontell, kan luftaren naturligtvis an- vändas i vilket läge som helst. 455 464 4 Slutligen kan venturidysan förlängas så att dess främre del omger propellern, vilken lämpligen är place- rad i vätskeströmmens riktning omedelbart efter dysans avsmalning. Således uppnås en lämplig riktningsverkan på den luftade vätskan.In addition, it should be added that although the aerator according to the invention is described in a working position where the propeller shaft is horizontal, the aerator can of course be used in any position. 455 464 4 Finally, the venturi nozzle can be extended so that its front part surrounds the propeller, which is suitably placed in the direction of the liquid flow immediately after the nozzle tapers. Thus, a suitable directional effect on the aerated liquid is achieved.

Det är uppenbart att för att uppnå maximal luftsug- ningskapacitet måste propellern, venturidysan och luft- intagsöppningarna vara dimensionerade för den rådande motoreffekten, arbetsdjupet och vätskans konsistens.It is obvious that in order to achieve maximum air suction capacity, the propeller, venturi nozzle and air intake openings must be dimensioned for the prevailing engine power, working depth and fluid consistency.

Claims (4)

10 15 20 25 453 464 PATENTKRAV10 15 20 25 453 464 PATENT REQUIREMENTS 1. l. Luftare för inblandning av luft eller andra gaser i en vätska med hjälp av en av drivorgan roterbar propeller, vilken luftare är nedsänkbar i vätskan och har minst ett lufttillförselorgan som i vätskeströmmens riktning är anordnat före propellern, k ä n n e t e c k - n a d av att lufttillförselorganet (5) mynnar i eller före en med propellerns (4) axel koaxiell venturidysas (2) utloppsöppning, och att venturidysans (2) mot pro- pellern (4) vända begränsningsplan eller kant ligger nära propellerbladens rotationsyta och avgränsar ven- turidysans (2) utloppsöppning.1. An aerator for mixing air or other gases in a liquid by means of a propeller rotatable by drive means, which aerator is submersible in the liquid and has at least one air supply means arranged in the direction of the liquid flow before the propeller, characterized by that the air supply means (5) opens into or before an outlet opening coaxial venturi nozzle (2) coaxial with the axis of the propeller (4), and that the boundary plane or edge facing the propeller (2) is close to the surface of rotation of the propeller blades 2) outlet opening. 2. Luftare enligt krav l, k ä n n e t e c k n a d innefattande en ram för placering i vätskan, av att propellern (4) och venturidysan (2) tillsammans med propellerns drivorgan (l) i luftarens användningsläge är höjdförskjutbart monterade på en ram och att pro- pellern (4) och venturidysan (2) har i huvudsak horison- tella längdaxlar.Aerator according to claim 1, characterized in that a frame for placement in the liquid, in that the propeller (4) and the venturi nozzle (2) together with the propeller drive means (1) in the position of use of the aerator are height-displaceably mounted on a frame and that the propeller (4) and the venturi nozzle (2) have substantially horizontal longitudinal axes. 3. Luftare enligt krav 2, av att propellern (4), venturidysan (2) och drivorganen (1) är vridbara i ett i huvudsak horisontellt plan kring ramen.Aerator according to claim 2, in that the propeller (4), the venturi nozzle (2) and the drive means (1) are rotatable in a substantially horizontal plane around the frame. 4. Luftare enligt krav 2-3, av att ramen består av en stång (8) med cirkulärt tvär- snitt och att propellern (4), venturidysan (2) och driv- organen (1) är fästa på en stången (8) omslutande, rör- formig del (ll), som är förskjutbar längs stången (8) i dennas längdriktning med hjälp av kända lyft- eller k ä n n e t e c k n a d k ä n n e t e c k n a d sänkorgan (9, 10). UAerator according to claims 2-3, in that the frame consists of a rod (8) with a circular cross-section and that the propeller (4), the venturi nozzle (2) and the drive means (1) are attached to a rod (8) enclosing, tubular part (II), which is displaceable along the rod (8) in its longitudinal direction by means of known lifting or marking-lowering means (9, 10). U
SE8502536A 1983-08-12 1985-05-23 AIR FOR MIXING AIR OR OTHER GASES IN A FLUID SE453464B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK369683A DK155715C (en) 1983-08-12 1983-08-12 APPARATUS FOR MIXING AIR IN A FLUID

Publications (3)

Publication Number Publication Date
SE8502536L SE8502536L (en) 1985-05-23
SE8502536D0 SE8502536D0 (en) 1985-05-23
SE453464B true SE453464B (en) 1988-02-08

Family

ID=8125771

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8502536A SE453464B (en) 1983-08-12 1985-05-23 AIR FOR MIXING AIR OR OTHER GASES IN A FLUID

Country Status (8)

Country Link
EP (1) EP0158653A1 (en)
AT (1) AT383966B (en)
CH (1) CH665567A5 (en)
DK (1) DK155715C (en)
IT (1) IT1213221B (en)
NO (1) NO160492C (en)
SE (1) SE453464B (en)
WO (1) WO1985001452A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017243A1 (en) * 1993-12-21 1995-06-29 Sunds Defibrator Industries Ab Device for admixing a processing agent to a pulp suspension
US6103128A (en) * 1996-10-31 2000-08-15 Sulzer Pumpen Ag Method and apparatus for mixing gas with liquid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ306266B6 (en) * 2007-03-20 2016-11-09 VĂŤTKOVICE ENVI a.s. Mixing device and method of mixing anaerobic reactor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT276262B (en) * 1967-09-26 1969-11-25 Hubert Fuchs Mixing unit for introducing any additional substances as secondary components into liquids or stationary waters, in particular for the biological purification of water
DE2559235B2 (en) * 1975-12-30 1981-03-26 Fa. Erwin Stelzer, 3530 Warburg Gassing device
GB2110550A (en) * 1981-11-20 1983-06-22 Beardmore And Sons Limited R T Treatment of effluent
US4464259A (en) * 1982-09-30 1984-08-07 Air-O-Lator Corporation Hydraulic horizontal mixer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017243A1 (en) * 1993-12-21 1995-06-29 Sunds Defibrator Industries Ab Device for admixing a processing agent to a pulp suspension
US5746890A (en) * 1993-12-21 1998-05-05 Sunds Defibrator Industries Ab Device for admixing a processing agent into a pulp suspension
US6103128A (en) * 1996-10-31 2000-08-15 Sulzer Pumpen Ag Method and apparatus for mixing gas with liquid

Also Published As

Publication number Publication date
DK369683D0 (en) 1983-08-12
SE8502536L (en) 1985-05-23
EP0158653A1 (en) 1985-10-23
SE8502536D0 (en) 1985-05-23
DK369683A (en) 1985-03-28
IT8422862A0 (en) 1984-09-27
NO160492B (en) 1989-01-16
DK155715B (en) 1989-05-08
ATA903184A (en) 1987-02-15
IT1213221B (en) 1989-12-14
NO851944L (en) 1985-05-15
AT383966B (en) 1987-09-10
WO1985001452A1 (en) 1985-04-11
CH665567A5 (en) 1988-05-31
DK155715C (en) 1989-09-25
NO160492C (en) 1989-04-26

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