US3559964A - Device for mechanical gasification of liquids - Google Patents

Device for mechanical gasification of liquids Download PDF

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Publication number
US3559964A
US3559964A US3559964DA US3559964A US 3559964 A US3559964 A US 3559964A US 3559964D A US3559964D A US 3559964DA US 3559964 A US3559964 A US 3559964A
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US
United States
Prior art keywords
conveyor
liquids
gasification
radially
liquid
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.)
Expired - Lifetime
Application number
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English (en)
Inventor
Guenther Sell
Joerg Lohmann
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.)
ThyssenKrupp Industrial Solutions AG
ThyssenKrupp Industrial Solutions AG
Original Assignee
Uhde GmbH
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 Uhde GmbH filed Critical Uhde GmbH
Application granted granted Critical
Publication of US3559964A publication Critical patent/US3559964A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C02F3/12—Activated sludge processes
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical 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
    • B01F23/234—Surface aerating
    • B01F23/2342—Surface 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
    • B01F23/23421—Surface 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 the stirrers rotating about a vertical axis
    • B01F23/234211—Stirrers thereof
    • 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

Definitions

  • FIG 5 INVENTORS GUN-"45R SELL BY dbRs LOHMANN Yuk! 633.2.
  • FIG. 1 is a diagrammatic elevation of a gasification device embodying an axially operating conveyor and a radially operating conveyor;
  • FIG. 2 is a diagrammatic view in axial section of a radially operating conveyor
  • FIG. 3 is a diagrammatic view partly in plan and partly in horizontal section of another form of a radially operating conveyor.
  • FIGS. 4 and 5 are fragmentary views of baffles.
  • the surface aerator as shown on FIG. 1, is divided into an axially operating conveyor or feed member 1 and a radially acting feed member 3, whereby the axially acting feed member I is driven by means of a shaft 6 disposed in a tubular shaft 5 of the radially acting feed member 3.
  • the axially acting part consists of a propeller, which pumps large quantities with low delivery or pressure heads.
  • the radial blades of the member 3 are surrounded on their lower side by a sleeve 2, and on their upper side are held by means of sheet metal members 4. In this embodiment, only the axially effective feed member 1 is required to be immersed in the liquid.
  • the inlet diameter may be held correspondingly smaller.
  • the entire dimension of the aeration device may be decreased. With the same circumferential speed there result less losses in yield at higher rates of rotation.
  • the degree of effectiveness of the device is dependent in less measure on the peak of performance than with the previously known systems.
  • the two conveyor members 1 and 3 operate at the rate of rotation most favorable at the time.
  • the propeller of the member 1 is a high-speed engine, while the subsequent radial driver or rotor or the member 3 is a medium or average driver or rotor, in order to impart to the liquid conveyed a high outlet speed.
  • the motion may take place by means of a drive with double outflow (hollow or tuular shaft).
  • a control of the material exchange is possible by means of the change in the rate of rotation and the surfacing height of the members, as well as through exchange of the direction of rotation of the radial conveyor 3.
  • This aeration device insures with the same expenditure of energy the conveyance of a greater supply of fluid on the surface and the disposition of the radial part further above the liquid level.
  • FIG. 2 shows diagrammatically an axial section of a radial rotor in which a hollow or tubular shaft 8 which drives the radial rotor, is rigidly connected to rotor blades 9 by radial rigidifying sheet metal members 7.
  • the rotor blades 9 are surrounded respectively on their upper side and on their lower side by covering sheet metal members 10 and 11. With these covering sheet metal members 10 and 11, the rotor blades 9 form flow channels, in which baffle plates 12 diverted in the direction of flow are disposed in the flow stream. Adjacent the baffle plates are apertures 13, through which gas may be sucked up from the flow into the liquid. At the upper edges the hollow rotor blades are connected through the suction openings 17 with the gas phase.
  • baffle plates are shown on FIGS. 4 and 5.
  • a lower sheet metal causing 14 is double walled as well as the rotor blades. In this way, gas may be sucked up from the lower side of the flow channels into the liquid stream.
  • the lower sheet metal casing member 14 extends downwardly to a stabilization ring 15.
  • baffle plates 12 on the blade walls the flow of liquid produces an under pressure or vacuum, through which gas may be sucked through the apertures out of the cavity.
  • baffle plates there is no need for baffle plates at the places at which water flows through the rotor channels, since an underpressure or vacuum is already present. At these places, as indicated on FIG. 3, by means of apertures 16, gas may be sucked up through the natural underpressure or vacuum out of the rotor blades into the liquid.
  • These radial rotors may also be driven without a second axially effective rotor part on the inlet side of the liquid. The radial rotor must then in any case be immersed correspondingly deeply in the liquid.
  • a double walled embodiment of the lower cover disc may be omitted, as the gas phase has direct access hereto.
  • Device for gasification of liquids comprising a radially effective rotatable conveyor provided with an upper and a lower cover plate, an axially effective rotatable conveyor having propellerlike blades, a stabilization ring surrounding and spaced from said axially effective conveyor, said lower plate of said radially effective conveyor extending downwardly to said stabilization ring, a vertically disposed tubular driving shaft for said radially effective conveyor, and a driving shaft for said axially effective conveyor disposed within said tubular shaft.
  • Device for gasification of liquids as claimed in claim 1 comprising means for driving the shaft of the radially effective conveyor and the shaft of the axially effective conveyor at speeds according to the specific coefficient for speed of the radially effective and axially effective conveyors.
  • the upper cover plate of the radially effective conveyor is provided with openings, the lower cover plate and the blades of said conveyor being of hollow construction and the hollow spaces being in communication, said hollow blades being arranged to the openings in the upper cover plate and the hollow spaces thereof being in open communication to the atmosphere, and there being openings in the blades and the innerside of the lower cover plate to the channels through which openings gas may be sucked into the liquid.

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  • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
US3559964D 1968-01-04 1969-01-02 Device for mechanical gasification of liquids Expired - Lifetime US3559964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1632423A DE1632423B2 (de) 1968-01-04 1968-01-04 Vorrichtung zum Begasen von Flüssigkelten

Publications (1)

Publication Number Publication Date
US3559964A true US3559964A (en) 1971-02-02

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ID=5683485

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US3559964D Expired - Lifetime US3559964A (en) 1968-01-04 1969-01-02 Device for mechanical gasification of liquids

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US (1) US3559964A (enrdf_load_html_response)
DE (1) DE1632423B2 (enrdf_load_html_response)
FR (1) FR1602010A (enrdf_load_html_response)
GB (1) GB1253251A (enrdf_load_html_response)
NL (1) NL137786C (enrdf_load_html_response)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940461A (en) * 1974-02-15 1976-02-24 Ernest J. Martin Liquid aeration method and pump apparatus with stationary vanes and downward flow
US3954606A (en) * 1973-11-12 1976-05-04 Air Products And Chemicals, Inc. Wastewater treatment system with controlled mixing
US3980740A (en) * 1973-12-12 1976-09-14 Landustrie Sneek, Machinefabriek Elektrotechniek B.V. Devices for aerating liquids
US3981628A (en) * 1974-04-08 1976-09-21 Carter James C Pump
US4305894A (en) * 1978-03-31 1981-12-15 Lindblom Harry G Arrangement in apparatus for mixing gases with and dissolving gases in liquids
US20070251865A1 (en) * 2004-04-22 2007-11-01 Hydor Srl Rotating Aerator for Aquariums and Ponds
EP2821129A1 (en) * 2013-07-05 2015-01-07 Happihyrrä Oy Apparatus for treatment of liquid

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2293235A1 (fr) * 1974-12-05 1976-07-02 Roland Jean Louis Dispositif pour introduire un gaz dans un liquide
FR2372774A2 (fr) * 1976-12-06 1978-06-30 Cersoaf Perfectionnements aux turbines d'aeration de liquides
NL8101294A (nl) * 1981-03-17 1982-10-18 Tno Roerder met naar de omtrek oplopende hoofdzakelijk driehoekige, radiale bladen.
DK211281A (da) * 1981-05-13 1982-11-14 A S Frandsen Iltningsanlaeg til vandomraader,isaer fiskedamme
FR2517564B1 (fr) * 1981-12-07 1987-02-27 Etude Tech Realisa Equip Turbine rapide flottante d'aeration, notamment pour l'epuration des eaux
FR2609459A1 (fr) * 1987-01-12 1988-07-15 Tech Melange Indl Appareil agitateur et aerateur d'une masse liquide, notamment pour station d'epuration biologique
DE10050030B4 (de) * 2000-10-06 2005-12-01 Schulz Verfahrenstechnik Gmbh Verfahren und Vorrichtung zum Eintragen von Gasen in flüssige Medien

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1210781A (en) * 1915-03-01 1917-01-02 Alpheus Fay Apparatus for operating upon composite substances.
US2054395A (en) * 1935-03-08 1936-09-15 Underpinning & Foundation Comp Apparatus for aerating sewage and the like
US2072944A (en) * 1934-12-21 1937-03-09 Chicago Pump Co Aerator
US2698745A (en) * 1950-12-26 1955-01-04 Howard Earl Air cleaner
GB989653A (en) * 1959-03-05 1965-04-22 Foster Grant Co Inc Improved liquid-fluid contacting device
US3416729A (en) * 1966-08-12 1968-12-17 Richards Of Rockford Inc Liquid aerator
US3479017A (en) * 1966-02-10 1969-11-18 Metallgesellschaft Ag Apparatus for charging liquids with gases

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1210781A (en) * 1915-03-01 1917-01-02 Alpheus Fay Apparatus for operating upon composite substances.
US2072944A (en) * 1934-12-21 1937-03-09 Chicago Pump Co Aerator
US2054395A (en) * 1935-03-08 1936-09-15 Underpinning & Foundation Comp Apparatus for aerating sewage and the like
US2698745A (en) * 1950-12-26 1955-01-04 Howard Earl Air cleaner
GB989653A (en) * 1959-03-05 1965-04-22 Foster Grant Co Inc Improved liquid-fluid contacting device
US3479017A (en) * 1966-02-10 1969-11-18 Metallgesellschaft Ag Apparatus for charging liquids with gases
US3416729A (en) * 1966-08-12 1968-12-17 Richards Of Rockford Inc Liquid aerator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954606A (en) * 1973-11-12 1976-05-04 Air Products And Chemicals, Inc. Wastewater treatment system with controlled mixing
US3980740A (en) * 1973-12-12 1976-09-14 Landustrie Sneek, Machinefabriek Elektrotechniek B.V. Devices for aerating liquids
US3940461A (en) * 1974-02-15 1976-02-24 Ernest J. Martin Liquid aeration method and pump apparatus with stationary vanes and downward flow
US3981628A (en) * 1974-04-08 1976-09-21 Carter James C Pump
US4305894A (en) * 1978-03-31 1981-12-15 Lindblom Harry G Arrangement in apparatus for mixing gases with and dissolving gases in liquids
US20070251865A1 (en) * 2004-04-22 2007-11-01 Hydor Srl Rotating Aerator for Aquariums and Ponds
US8172205B2 (en) * 2004-04-22 2012-05-08 Hydor Srl Rotating aerator for aquariums and ponds
EP2821129A1 (en) * 2013-07-05 2015-01-07 Happihyrrä Oy Apparatus for treatment of liquid

Also Published As

Publication number Publication date
NL6900075A (enrdf_load_html_response) 1969-07-08
DE1632423B2 (de) 1975-01-23
NL137786C (enrdf_load_html_response) 1973-01-15
FR1602010A (enrdf_load_html_response) 1970-09-28
GB1253251A (enrdf_load_html_response) 1971-11-10
DE1632423A1 (de) 1969-10-23

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