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WO1994021365A3 - Mixing device for gases and liquids - Google Patents

Mixing device for gases and liquids Download PDF

Info

Publication number
WO1994021365A3
WO1994021365A3 PCT/EP1994/000751 EP9400751W WO9421365A3 WO 1994021365 A3 WO1994021365 A3 WO 1994021365A3 EP 9400751 W EP9400751 W EP 9400751W WO 9421365 A3 WO9421365 A3 WO 9421365A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquids
gases
mixing device
feed tube
outer side
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
PCT/EP1994/000751
Other languages
German (de)
French (fr)
Other versions
WO1994021365A2 (en
Inventor
Dieter Walter Ulrich Brenner
Michael Johann Frecke
Thomas Anthony Post
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.)
Turbo-Lightnin Mischtechnik & Co KG GmbH
TURBO LIGHTNIN MISCHTECHNIK GM
Original Assignee
Turbo-Lightnin Mischtechnik & Co KG GmbH
TURBO LIGHTNIN MISCHTECHNIK GM
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 Turbo-Lightnin Mischtechnik & Co KG GmbH, TURBO LIGHTNIN MISCHTECHNIK GM filed Critical Turbo-Lightnin Mischtechnik & Co KG GmbH
Publication of WO1994021365A2 publication Critical patent/WO1994021365A2/en
Publication of WO1994021365A3 publication Critical patent/WO1994021365A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B01F23/2331—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
    • B01F23/23312—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 conduit surrounding the 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
    • 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
    • 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
    • B01F27/1132—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller with guiding tubes or tubular segments fixed to and surrounding the tips of the propeller blades, e.g. for supplementary mixing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

A mixing device for gases and liquids has a feed tube (3) open both above and below the liquid level. Below the feed tube is located a turbo-stirring member (8) driven by means of an axial shaft (4). The inner stirring blades of the stirring member (8) are surrounded by a ring (10) which turns together with them. On the outer side of the ring (10) are mounted further axial blades (9) which also convey the gases and liquids in the axial direction. In order to generate appropriately divided swirls while improving gas feed, the feed tube (3) may be provided on its outer side with flow-disturbing baffles (11) arranged in a star configuration. This mixing device, suitable for example in waste water treatment plants for aerating the water, as well as for high-pressure reactors, allows gas feed to be substantially increased with an optimum gas bubble distribution. Solids may also be fed therewith and are remarkably well suspended.
PCT/EP1994/000751 1993-03-12 1994-03-10 Mixing device for gases and liquids Ceased WO1994021365A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4307925.3 1993-03-12
DE4307925A DE4307925A1 (en) 1993-03-12 1993-03-12 Device for mixing gases and liquids

Publications (2)

Publication Number Publication Date
WO1994021365A2 WO1994021365A2 (en) 1994-09-29
WO1994021365A3 true WO1994021365A3 (en) 1994-11-24

Family

ID=6482657

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/000751 Ceased WO1994021365A2 (en) 1993-03-12 1994-03-10 Mixing device for gases and liquids

Country Status (2)

Country Link
DE (1) DE4307925A1 (en)
WO (1) WO1994021365A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101663246B1 (en) 2016-01-29 2016-10-06 고려대학교 산학협력단 Contra-rotating multi-layer propeller unit for multi-phase flow

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE369362C (en) * 1923-02-17 Maschf Agitators, especially for oil refining
DE402373C (en) * 1923-12-20 1924-09-15 Heinrich Hass G M B H Machine for refining cocoa, chocolate and similar masses
DE1181673B (en) * 1960-06-24 1964-11-19 Thaelmann Schwermaschbau Veb Device for aerating a liquid
DE2310319A1 (en) * 1972-03-03 1973-09-13 Vogelbusch Gmbh Liq aerating rotor - esp for microorganism culture
DE2415813A1 (en) * 1974-04-01 1975-10-16 Heinz Mueller Agitator with gas entrainment - having annular duct around shaft leading from gas supply to impeller
FR2383697A1 (en) * 1977-03-17 1978-10-13 Delbergue Martial Cattle food mixer for powdered prods. - with helical stirrer producing vortex in tunnel to ensure intimate mixing
SU997770A1 (en) * 1981-07-30 1983-02-23 Центральный Научно-Исследовательский Институт Механизации И Электрификации Сельского Хозяйства Нечерноземной Зоны Ссср Turbine ajitator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1186422B (en) * 1963-02-21 1965-02-04 Kloeckner Humboldt Deutz Ag Agitator flotation cell
GB1022284A (en) * 1963-04-04 1966-03-09 Ames Crosta Mills & Company Lt Improvements in or relating to the surface aeration of liquids

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE369362C (en) * 1923-02-17 Maschf Agitators, especially for oil refining
DE402373C (en) * 1923-12-20 1924-09-15 Heinrich Hass G M B H Machine for refining cocoa, chocolate and similar masses
DE1181673B (en) * 1960-06-24 1964-11-19 Thaelmann Schwermaschbau Veb Device for aerating a liquid
DE2310319A1 (en) * 1972-03-03 1973-09-13 Vogelbusch Gmbh Liq aerating rotor - esp for microorganism culture
DE2415813A1 (en) * 1974-04-01 1975-10-16 Heinz Mueller Agitator with gas entrainment - having annular duct around shaft leading from gas supply to impeller
FR2383697A1 (en) * 1977-03-17 1978-10-13 Delbergue Martial Cattle food mixer for powdered prods. - with helical stirrer producing vortex in tunnel to ensure intimate mixing
SU997770A1 (en) * 1981-07-30 1983-02-23 Центральный Научно-Исследовательский Институт Механизации И Электрификации Сельского Хозяйства Нечерноземной Зоны Ссср Turbine ajitator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED Section Ch Week K50, 1 February 1984 Derwent World Patents Index; Class J02, AN 83-843525 *

Also Published As

Publication number Publication date
DE4307925A1 (en) 1994-09-22
WO1994021365A2 (en) 1994-09-29

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