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CH363942A - Ventilation rotor for liquids, in particular for waste water purification - Google Patents

Ventilation rotor for liquids, in particular for waste water purification

Info

Publication number
CH363942A
CH363942A CH4771757A CH4771757A CH363942A CH 363942 A CH363942 A CH 363942A CH 4771757 A CH4771757 A CH 4771757A CH 4771757 A CH4771757 A CH 4771757A CH 363942 A CH363942 A CH 363942A
Authority
CH
Switzerland
Prior art keywords
ventilation
liquids
rotor
waste water
water purification
Prior art date
Application number
CH4771757A
Other languages
German (de)
Inventor
Schramm Paul
Original Assignee
Passavant Werke
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 DEP14237A external-priority patent/DE1030775B/en
Application filed by Passavant Werke filed Critical Passavant Werke
Publication of CH363942A publication Critical patent/CH363942A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/14Activated sludge processes using surface aeration
    • C02F3/18Activated sludge processes using surface aeration the aerator having a horizontal axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234Surface aerating
    • B01F23/2342Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Biological Treatment Of Waste Water (AREA)

Description

  

  Belüftungsrotor für Flüssigkeiten, insbesondere zur Abwasserreinigung    Das Hauptpatent bezieht sich auf ein Verfahren  zum     Belüften    von     Flüssigkehen    sowie auf einen Ro  tor zur     Durchführung    dieses Verfahrens.     Dieser    Ro  tor zeichnet sieh gemäss     Patentanspruch    des Haupt  patentes dadurch aus,     dass    auf einer Welle, über     ihre     ganze Länge verteilt,     mindestens        annähernd        radial     angeordnete     Belüftungsstäbe    vorgesehen sind.

   Die  Belüftungsstäbe erzeugen beim Durchlauf durch die  Flüssigkeit Saugwirbel. Es hat sich nun gezeigt,     dass     diese Wirkung erheblich     gesteigert        werden    kann,  wenn     gemäss    vorliegender     Erfindung    die Belüftungs  stäbe ein mehrfach gebogenes Profil     aufweisen.        Vor-          zugsweise    weisen sie     W-förmiges    oder     wellenförmiges     Profil auf.

       Gegenüber    den in den Ausführungsbei  spielen des Hauptpatentes gezeigten Profilen erreicht  man mit den neuen     Profilen    ein erheblich     grösseres          Sauerstoffeintragu.ngsvermögen        in    Gramm pro     KWH,     und zwar je nach     Drehrichtung    des     Rotors    um 25  bis 50 % bei gleichen     Bedingungen,    z. B. bei glei  cher     Eintauchtiefe    von 13 cm und 100 Umdrehungen  pro Minute des Rotors.

   Ein solcher Erfolg, der nur  auf die Wahl der neuen     Profilformen    zurückgeht,  war nicht zu     erwarten.     



  Die Zeichnung zeigt     Ausführungsbeispiele    der       Erfindung,    und     zwar    in     den        Fig.    1 und 2 Seitenan  sicht und Ansicht     eines    Rotors und in den     Fig.    3 bis  7 Leisten mit den neuen Belüftungsstäben, die als  fertige Bauteile in der im Hauptpatent beschriebenen  Weise auf der     Rotorwelle        befestigt    werden.  



  Der Belüftungsrotor nach den     Fig.    1 und 2     be-          steht    aus der     Rotorhohlwelle    1, die, wie     bekannt,        in     Lagern gelagert wird, und den darauf mittels Schrau  ben 2 lösbar befestigten     Tragleisten    3, die die     Be-          lüftungselemente    4 tragen.

   Sie     sind    auf der Trag  leiste     aufgeschweisst    oder     angeschraubt.    Es sei be-         merkt,        dass,    man die     Profile    auch     unmittelbar    auf der       Rotorwelle        befestigen        kann    oder     zwischen    benach  barten     Klemmleisten,    wie im     deutschen    Patent  Nr.

   937160 dargelegt,     festklemmen        kann.    Die     Be-          festigungslöcher    5     in    den Tragleisten 3     sind    Längs  löcher, um     Verschiebemöglichkeiten    zu haben.     Die     Länge der Welle, die     Zahl    der Stäbe, die     Stablänge     und ihr Abstand voneinander     richten    sich nach der  Menge des     einzutragenden        Sauerstoffes        und    nach der       Eintauchtiefe    in das zu behandelnde Wasser.

   Bei dem  Ausführungsbeispiel nach den     Fig.    1     bis.    3 hat das       Belüftungselement    im     Querschnitt    die Form     eines    W.  Die     Fig.    4 zeigt in     Ansicht    und Querschnitt     einen     Belüftungsstab mit einem     gewellten        Profil.    Die     Fig.     5, 6 und 7     zeigen    andere,     mehrfach    gebogene Pro  file.

   Allen     Profilein    ist     gemeinsam,        dass    bei     gewähl-          ter    Breite des     Belüftungselementes    die     Fläche    durch  mehrfache     Biegung        erheblich        vergrössert        ist.  



  Ventilation rotor for liquids, in particular for wastewater treatment. The main patent relates to a method for aerating liquids and to a Ro tor for carrying out this method. This Ro tor is characterized according to claim of the main patent in that at least approximately radially arranged ventilation rods are provided on a shaft, distributed over its entire length.

   The ventilation rods generate suction vortices as the liquid passes through it. It has now been shown that this effect can be increased considerably if, according to the present invention, the ventilation rods have a profile that is curved several times. They preferably have a W-shaped or wave-shaped profile.

       Compared to the profiles shown in the exemplary embodiments of the main patent, the new profiles achieve a considerably greater oxygen input capacity in grams per KWH, depending on the direction of rotation of the rotor by 25 to 50% under the same conditions, e.g. B. with equal immersion depth of 13 cm and 100 revolutions per minute of the rotor.

   Such a success, which is only due to the choice of the new profile shapes, was not to be expected.



  The drawing shows embodiments of the invention, namely in Figs. 1 and 2 Seitenan view and view of a rotor and in Figs. 3 to 7 bars with the new ventilation rods, which are attached as finished components in the manner described in the main patent on the rotor shaft will.



  The ventilation rotor according to FIGS. 1 and 2 consists of the rotor hollow shaft 1, which, as is known, is mounted in bearings, and the support strips 3 which are releasably fastened thereon by means of screws 2 and which support the ventilation elements 4.

   They are welded or screwed onto the support strip. It should be noted that the profiles can also be attached directly to the rotor shaft or between adjacent clamping strips, as in German Patent No.

   937160 set out, can clamp. The fastening holes 5 in the support strips 3 are longitudinal holes in order to have displacement options. The length of the shaft, the number of rods, the rod length and their distance from one another depend on the amount of oxygen to be introduced and the depth of immersion in the water to be treated.

   In the embodiment of FIGS. 1 to. 3, the ventilation element has the shape of a W in cross section. FIG. 4 shows in view and cross section a ventilation rod with a corrugated profile. 5, 6 and 7 show other, multiple curved Pro files.

   What all profiles have in common is that if the width of the ventilation element is selected, the area is considerably larger due to multiple bends.

 

Claims (1)

PATENTANSPRUCH Belüftungsrotor nach dem Patentanspruch II des Hauptpatentes, dadurch gekennzeichnet, dass die Be- lüftungsstäbe ein mehrfach gebogenes Profil auf weisen. PATENT CLAIM Ventilation rotor according to claim II of the main patent, characterized in that the ventilation rods have a profile that is bent several times. UNTERANSPRÜCHE 1. Belüftungsrotor nach Patentanspruch, dadurch gekennzeichnet, dass die Belüftungsstäbe ein W-för- miges Profil aufweisen. z. Belüftungsrotor nach Patentanspruch, dadurch gekennzeichnet, dass die Belüftungsstäbe ein wellen förmiges Profil aufweisen. SUBClaims 1. Ventilation rotor according to patent claim, characterized in that the ventilation rods have a W-shaped profile. z. Ventilation rotor according to claim, characterized in that the ventilation rods have a wave-shaped profile.
CH4771757A 1955-06-03 1957-06-26 Ventilation rotor for liquids, in particular for waste water purification CH363942A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP14237A DE1030775B (en) 1955-06-03 1955-06-03 Ventilation rotor for liquids, especially for waste water
DEP16615A DE1080938B (en) 1955-06-03 1956-07-09 Ventilation rotor for liquids, especially for waste water

Publications (1)

Publication Number Publication Date
CH363942A true CH363942A (en) 1962-08-15

Family

ID=28675967

Family Applications (1)

Application Number Title Priority Date Filing Date
CH4771757A CH363942A (en) 1955-06-03 1957-06-26 Ventilation rotor for liquids, in particular for waste water purification

Country Status (4)

Country Link
BE (1) BE558864A (en)
CH (1) CH363942A (en)
DE (1) DE1080938B (en)
FR (1) FR71781E (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601790C2 (en) 1996-01-19 1998-05-07 Passavant Werke Aeration device for waste water

Also Published As

Publication number Publication date
BE558864A (en) 1960-04-08
FR71781E (en) 1960-01-19
DE1080938B (en) 1960-04-28

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