DE3603466A1 - Apparatus for introducing gas into and circulating liquids in tanks - Google Patents

Apparatus for introducing gas into and circulating liquids in tanks

Info

Publication number
DE3603466A1
DE3603466A1 DE19863603466 DE3603466A DE3603466A1 DE 3603466 A1 DE3603466 A1 DE 3603466A1 DE 19863603466 DE19863603466 DE 19863603466 DE 3603466 A DE3603466 A DE 3603466A DE 3603466 A1 DE3603466 A1 DE 3603466A1
Authority
DE
Germany
Prior art keywords
cone
tanks
rotor
edge
introducing gas
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
DE19863603466
Other languages
German (de)
Inventor
Franz Dr Ing Nestmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LANG CORNELIA DIPL ING
Original Assignee
LANG CORNELIA DIPL ING
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
Priority claimed from DE19853519520 external-priority patent/DE3519520A1/en
Application filed by LANG CORNELIA DIPL ING filed Critical LANG CORNELIA DIPL ING
Priority to DE19863603466 priority Critical patent/DE3603466A1/en
Publication of DE3603466A1 publication Critical patent/DE3603466A1/en
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—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
    • B01F23/2335—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
    • B01F23/2336—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
    • B01F23/23362—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 under 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
    • B01F23/2336—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
    • B01F23/23364—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 between the stirrer elements
    • 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
    • B01F27/116—Stirrers shaped as cylinders, balls or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/93—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with rotary discs
    • 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
    • B01F27/117—Stirrers provided with conical-shaped elements, e.g. funnel-shaped
    • 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

Abstract

The present invention relates to an apparatus for stirring, circulating and introducing gas into liquids in tanks, in particular in activation tanks for aerating sewage sludge. The apparatus comprises a cone open at the bottom, on the shell surface and the edge of which are mounted attachments. The cone is mounted in the vicinity of the bottom and is rotated about a vertically arranged axis, as a result of which the tank liquid is circulated. At the same time, for aeration, compressed air is introduced beneath the cone via a pipe, which compressed air is then distributed in the tank in the form of small bubbles. A base cone installed beneath this rotor cone supports this bubble movement and contributes to the improvement of the flow.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Begasen von Flüssigkeiten mit und ohne Zusatzstoffen, insbesondere zum Belüften von Belebtschlamm in Belüftungsbecken von Kläranlagen nach Patent P 35 19 520.7.The invention relates to a device for gassing liquids with and without additives, especially for aerating activated sludge in Aeration tanks of sewage treatment plants according to patent P 35 19 520.7.

Das Hauptpatent betrifft eine Vorrichtung zum Begasen von Flüssigkeiten mit und ohne Zusatzstoffen, insbesondere zum Belüften von Belebtschlamm in Belüftungsbecken von Kläranlagen, durch Erzeugen einer kreisenden Strömung zwischen der Oberfläche der Flüssigkeit und der Beckensohle. Dabei wird durch eine Hohlwelle dem Belüfter von oben, oder durch Zusatzaggregate von unten, Luft zugeführt. Durch die Ausbildung nach dem Hauptpatent sollen die Nachteile bekannter Vorrichtungen sowie die mit deren Betrieb verbundene Aerosolbildung und Lärmbelästigung weitestgehend vermieden und ein Sauerstoffeintrag und Ertrag erreicht werden, der oberhalb der bisher verwendeten mechanischen Belüfter liegt und darüber hinaus stufenlos im gesamten Bereich regelbar ist.The main patent relates to a device for gassing liquids with and without additives, especially for aerating activated sludge in aeration tanks of sewage treatment plants, by generating a circulating flow between the surface of the liquid and the pelvic floor. This is done by a hollow shaft to the aerator from above, or from below with additional units, Air supplied. The disadvantages are due to the training according to the main patent known devices and the aerosol formation associated with their operation and noise pollution largely avoided and an oxygen input and yield can be achieved, the above the previously used mechanical Aerator is located and is also infinitely adjustable in the entire area.

Die vorliegende Erfindung bezweckt eine weitere Ausgestaltung der Verrichtung nach den Ansprüchen 1, 2, 3, 4 und 5 des Hauptpatents. Die Erfindung ist dadurch gekennzeichnet, daß mittig im Becken ein Bodenkegel installiert wird zur Verringerung des Abstandes Boden - Rotorunterkante. Der Bodenkegel wird zweckmäßig mit größerem Durchmesser als der Rotor gestaltet. Die Kegelspitze ragt in den Rotorinnenraum hinein. Diese Erfindung dient einer Verbesserung der bodennahen Strömung und des Transportes der Luftblasen in Richtung zum Beckenrand. The present invention aims at a further embodiment of the execution according to claims 1, 2, 3, 4 and 5 of the main patent. The invention is thereby characterized in that a bottom cone is installed in the middle of the pool to reduce the distance between the bottom and the lower edge of the rotor. The bottom cone will expediently designed with a larger diameter than the rotor. The cone tip protrudes into the rotor interior. This invention serves to improve the flow close to the ground and the transport of the air bubbles towards the pool edge.  

Die Wirkungsweise des Wirbelkegelrührers und Begasers beruht auf der Zerteilung der eingebrachten Luft entlang des Mantelkranzes in Blasen und auf dem Transport der Gasblasen gegen den Rand des Beckens infolge der Flüssigkeitsbewegung. An der Beckensohle wirken darüber hinaus durch die von der Beckenmitte zur Beckenwand gerichteten Strömungsgeschwindigkeiten, Strömungskräfte, die die Ablagerung von in der Flüssigkeit enthaltenen Feststoffen verhindern.The mode of operation of the vortex cone stirrer and gasifier is based on the division of the introduced air in bubbles and along the rim of the mantle the transport of the gas bubbles towards the edge of the basin due to the movement of the liquid. On the pelvic floor also act by the Flow velocities, flow forces directed towards the middle of the pool the deposition of solids contained in the liquid prevent.

Die Vorrichtung wird zweckmäßigerweise so gestaltet, daß der Abstand Beckensohls - Rotorunterkante möglichst gering ist, da dann die Strömungsverhältnisse in Bodennähe wesentlich günstiger sind und die Gasblasen einerseits von der Strömung bis an die Beckensohle mitgerissen werden und andererseits erst in größerer Entfernung vom Beckenzentrum aufsteigen, was eine längere Aufenthaltszeit zur Folge hat.The device is expediently designed so that the distance from the bottom of the pelvis - The bottom edge of the rotor is as small as possible, since then the flow conditions are much cheaper near the ground and the gas bubbles on the one hand be swept away by the current to the bottom of the pelvis and on the other hand only rise at a greater distance from the pelvic center, which is a longer one Residence time.

Der Einbau eines Bodenkegels bewirkt insbesondere dort, wo sich ein größerer Abstand zwischen Rotorunterkante und Beckensohle nicht vermeiden läßt, z. B. dann, wenn die Luftzufuhr durch eine im Becken verlegte Rohrleitung größeren Durchmessers bis unter den Rotor erfolgt, eine Verbesserung der Strömung und der Blasenbewegung wie oben beschrieben.The installation of a bottom cone is particularly effective where there is a larger one Distance between the lower edge of the rotor and the bottom of the pelvis cannot be avoided, e.g. B. then when the air supply through a pipe laid in the basin larger Diameter up to under the rotor, an improvement in flow and the bubble movement as described above.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.In the drawing, an embodiment of the invention is shown.

Die Zahlenangaben in der Zeichnung bedeuten:The numbers in the drawing mean:

  •  1 Luftzuführung (bzw. Gas-) durch Rohrleitungen von unten
     2 alternative Luftzuführung (bzw. Gas-) durch die Hohlwelle
     7 Stromlinienverlauf
     8 Bodenlagerung der Achse
    10 auf dem Wirbelkegelmantel und entlang des Wirbelkegelrandes angebrachte Aufsätze
    11 Angabe zur Rotationsrichtung
    12 Antriebsachse
    13 wellige Trennfläche zwischen Gas und Flüssigkeit
    19 Bodenkegel, fest auf Beckenboden installiert     1 Air supply (or gas) through pipes from below
    2 alternative air supply (or gas) through the hollow shaft
    7 streamlined course
    8 Axle floor support
    10 attachments on the vortex cone jacket and along the edge of the vortex cone
    11 Direction of rotation
    12 drive axle
    13 wavy interface between gas and liquid
    19 floor cones, permanently installed on the pool floor

Claims (1)

Vorrichtung zum Begasen von Flüssigkeiten mit und ohne Zusatzstoffen, insbesondere zum Belüften von Belebtschlamm in Belüftungsbecken von Kläranlagen nach den Ansprüchen 1, 2, 3, 4 und 5 des Patents P 35 19 520.7 dadurch gekennzeichnet, daß mittig im Becken ein Bodenkegel installiert wird zur Verringerung des Abstandes Boden - Rotorunterkante. Der Bodenkegel wird zweckmäßig mit größerem Durchmesser als der Rotor gestaltet. Die Kegelspitze ragt in den Rotorinnenraum hinein. Diese Vorrichtung dient einer Verbesserung der bodennahen Strömung und des Transportes der Luftblasen in Richtung zum Beckenrand.Device for gassing liquids with and without additives, in particular for aerating activated sludge in aeration tanks of sewage treatment plants according to claims 1, 2, 3, 4 and 5 of patent P 35 19 520.7, characterized in that a bottom cone is installed in the middle of the pool for reduction the distance from the bottom to the bottom edge of the rotor. The bottom cone is expediently designed with a larger diameter than the rotor. The cone tip protrudes into the rotor interior. This device serves to improve the flow near the ground and the transport of the air bubbles towards the pool edge.
DE19863603466 1985-05-31 1986-02-05 Apparatus for introducing gas into and circulating liquids in tanks Ceased DE3603466A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863603466 DE3603466A1 (en) 1985-05-31 1986-02-05 Apparatus for introducing gas into and circulating liquids in tanks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853519520 DE3519520A1 (en) 1985-05-31 1985-05-31 Vortex cone stirrer & sparger apparatus for sparging and circulating liquids in basins
DE19863603466 DE3603466A1 (en) 1985-05-31 1986-02-05 Apparatus for introducing gas into and circulating liquids in tanks

Publications (1)

Publication Number Publication Date
DE3603466A1 true DE3603466A1 (en) 1987-08-06

Family

ID=25832721

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863603466 Ceased DE3603466A1 (en) 1985-05-31 1986-02-05 Apparatus for introducing gas into and circulating liquids in tanks

Country Status (1)

Country Link
DE (1) DE3603466A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332182A1 (en) * 1988-03-10 1989-09-13 Outokumpu Oy Method and apparatus for forming small bubbles in liquid
DE9106639U1 (en) * 1991-05-30 1991-09-05 Hoefken, Marcus, Dipl.-Ing., 8520 Erlangen, De
DE4218027A1 (en) * 1991-05-30 1992-12-03 Marcus Dipl Ing Hoefken Fluid agitation and aeration - has hyperboloid agitator body which separates actions for min. energy consumption
DE19959103A1 (en) * 1999-12-08 2001-06-21 Messer Griesheim Gmbh Process and device for treating waste water
WO2009018915A1 (en) * 2007-08-09 2009-02-12 Invent Umwelt- Und Verfahrenstechnik Ag Stirring device for activated sludges
WO2009018873A1 (en) * 2007-08-09 2009-02-12 Invent Umwelt-Und Verfahrenstechnik Ag Stirring device for activated sludges
US10058832B2 (en) * 2013-12-11 2018-08-28 Invent Umwelt- Und Verfahrenstechnik Ag Device for circulating a liquid received in a container having a stirring body with an aperture provided on the stirring body
US10130921B2 (en) * 2013-12-11 2018-11-20 Invent Umwelt—Und Verfahrenstechnik Ag Agitating member and agitating device having a plurality of segments for creating a current in a wastewater treatment basin
US10195573B2 (en) * 2013-12-11 2019-02-05 Invent Umwelt-Und Verfaiirenstechnik Ag Stirring element having segmented configuration, for circulating wastewater in basin, and apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332182A1 (en) * 1988-03-10 1989-09-13 Outokumpu Oy Method and apparatus for forming small bubbles in liquid
DE9106639U1 (en) * 1991-05-30 1991-09-05 Hoefken, Marcus, Dipl.-Ing., 8520 Erlangen, De
DE4218027A1 (en) * 1991-05-30 1992-12-03 Marcus Dipl Ing Hoefken Fluid agitation and aeration - has hyperboloid agitator body which separates actions for min. energy consumption
DE19959103A1 (en) * 1999-12-08 2001-06-21 Messer Griesheim Gmbh Process and device for treating waste water
WO2009018915A1 (en) * 2007-08-09 2009-02-12 Invent Umwelt- Und Verfahrenstechnik Ag Stirring device for activated sludges
WO2009018873A1 (en) * 2007-08-09 2009-02-12 Invent Umwelt-Und Verfahrenstechnik Ag Stirring device for activated sludges
CN101778665A (en) * 2007-08-09 2010-07-14 英文特环境及工艺股份公司 Stirring device for activated sludges
CN101778664A (en) * 2007-08-09 2010-07-14 英文特环境及工艺股份公司 Stirring device for activated sludges
JP2010535609A (en) * 2007-08-09 2010-11-25 インベント ウムウェルト− ウント フェルファーレンステヒニック アーゲー Stirrer for activated sludge
CN101778665B (en) * 2007-08-09 2013-01-16 英文特环境及工艺股份公司 Stirring device for activated sludges
US8434744B2 (en) 2007-08-09 2013-05-07 Invent Umwelt-Und Verfahrenstechnik Ag Stirring device for activated sludges
CN101778664B (en) * 2007-08-09 2013-07-24 英文特环境及工艺股份公司 Stirring device for activated sludges
US10058832B2 (en) * 2013-12-11 2018-08-28 Invent Umwelt- Und Verfahrenstechnik Ag Device for circulating a liquid received in a container having a stirring body with an aperture provided on the stirring body
US10130921B2 (en) * 2013-12-11 2018-11-20 Invent Umwelt—Und Verfahrenstechnik Ag Agitating member and agitating device having a plurality of segments for creating a current in a wastewater treatment basin
US10195573B2 (en) * 2013-12-11 2019-02-05 Invent Umwelt-Und Verfaiirenstechnik Ag Stirring element having segmented configuration, for circulating wastewater in basin, and apparatus

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