EP0263996A2 - Entonnoir de mélange - Google Patents

Entonnoir de mélange Download PDF

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Publication number
EP0263996A2
EP0263996A2 EP87113684A EP87113684A EP0263996A2 EP 0263996 A2 EP0263996 A2 EP 0263996A2 EP 87113684 A EP87113684 A EP 87113684A EP 87113684 A EP87113684 A EP 87113684A EP 0263996 A2 EP0263996 A2 EP 0263996A2
Authority
EP
European Patent Office
Prior art keywords
funnel
mixing
neck
liquid
edges
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.)
Granted
Application number
EP87113684A
Other languages
German (de)
English (en)
Other versions
EP0263996A3 (en
EP0263996B1 (fr
Inventor
Jan Drijver
Andries Dr. Jelsma
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of EP0263996A2 publication Critical patent/EP0263996A2/fr
Publication of EP0263996A3 publication Critical patent/EP0263996A3/de
Application granted granted Critical
Publication of EP0263996B1 publication Critical patent/EP0263996B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B01F23/50—Mixing liquids with solids
    • B01F23/56—Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • 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
    • B01F25/80—Falling particle mixers, e.g. with repeated agitation along a vertical axis
    • B01F25/85—Falling particle mixers, e.g. with repeated agitation along a vertical axis wherein the particles fall onto a film that flows along the inner wall of a mixer
    • 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
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/913—Vortex flow, i.e. flow spiraling in a tangential direction and moving in an axial direction

Definitions

  • the present invention relates to a mixing funnel which consists of an upper funnel part and a funnel neck.
  • a number of apparatuses are known for mixing powders with liquids.
  • a mixing funnel consisting of an upper funnel part and a funnel neck in that the upper funnel part is constructed from a trapezoidal, spaced-apart outer funnel upper part and inner funnel upper part with formation of an annular space, the distance between the outer funnel upper part and the inner one Upper part of the funnel is closed near the upper edges; that the funnel neck is tightly connected to the lower edge of the outer funnel upper part and that the outer funnel upper part is penetrated in its upper region by an inlet pipe for the tangential application of liquid.
  • the inner upper part of the funnel remains completely dry in that the liquid emerging from the annular gap between the lower edges of the inner and outer upper part of the funnel is deflected directly downward onto the inner wall of the funnel neck.
  • the downward rotating movement of the liquid on the inner wall of the funnel neck forces the powder-air mixture fed through the inner funnel top in the same direction.
  • the mixing funnel As a result of the air flow directed downwards, the vapors emerging from the liquid surface below the mixing funnel are prevented from rising into the inner upper part of the funnel, so that in this area no powder ver crusts occur.
  • the mixing funnel 2 located above a liquid surface 1 consists of an outer funnel upper part 3 and an inner funnel upper part 4, the upper edges of the two trapezoidal funnel upper parts (3, 4) being aligned and being connected to one another in a tightly closed manner by an annular ring 5.
  • An annular space 6 is formed by the outer upper funnel part 3, the inner upper funnel part 4 and the circular ring 5.
  • the upper upper part of the outer funnel 3 is penetrated by an inlet tube 7 through which the annular space 6 can be acted upon by liquid.
  • a cylindrical funnel neck 8 is tightly connected to the lower edge of the outer funnel top 3.
  • the connection between the funnel neck 8, the diameter of which is smaller than the circumference of the lower region of the outer funnel upper part 3, and the outer funnel upper part 3 is achieved by a rounding 9.
  • the annular space 6 has at its lower end an annular gap 13 which is formed between the lower edge of the inner upper funnel part 4 and the rounding 9.
  • the operation of the mixing funnel 2 is as follows: When the liquid flows out of the annular gap 13 formed between the inner upper part 4 of the funnel and the rounding 9, a vacuum is created, through which the emerging liquid ring 10 is bent downwards and pressed against the inner wall of the funnel neck 8.
  • the rounding 9 is bent in such a way that its tangent in the region of the annular gap 13 forms an angle ⁇ of 25 to 35 ° with the inner surface of the bent liquid ring 10 or with the funnel neck 8 parallel to it. Due to the tangential entry of the liquid into the annular space 6, the liquid ring 10 also has a rotational movement; the liquid thus rotates downwards. Powder is applied to the inner upper part 4 of the funnel from above along the arrows 11.
  • the falling powder-air mixture is captured and wetted by the rotating liquid moving downwards.
  • a hollow cone 12 is formed which extends down to the liquid surface 1 and thereby prevents the non-wetted powder from escaping.
  • the mixing funnel according to the invention can be used to dissolve fine-grained salts, for example alkali metal triphosphates, in water while avoiding dust losses or to introduce a solid into a liquid with the result of a chemical reaction with a positive heat effect, for example for introducing burnt lime in wet process phosphoric acid to form calcium sulfate. be used.
  • fine-grained salts for example alkali metal triphosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP87113684A 1986-10-17 1987-09-18 Entonnoir de mélange Expired - Lifetime EP0263996B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3635326 1986-10-17
DE3635326 1986-10-17
DE3707880 1987-03-12
DE19873707880 DE3707880A1 (de) 1986-10-17 1987-03-12 Mischtrichter

Publications (3)

Publication Number Publication Date
EP0263996A2 true EP0263996A2 (fr) 1988-04-20
EP0263996A3 EP0263996A3 (en) 1989-12-13
EP0263996B1 EP0263996B1 (fr) 1992-03-04

Family

ID=25848531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113684A Expired - Lifetime EP0263996B1 (fr) 1986-10-17 1987-09-18 Entonnoir de mélange

Country Status (2)

Country Link
EP (1) EP0263996B1 (fr)
DE (2) DE3707880A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419280A1 (fr) * 1989-09-21 1991-03-27 Halliburton Company Appareil de mélange
WO2000056432A1 (fr) * 1999-03-19 2000-09-28 Termoelettronica S.P.A. Dispositif permettant de mettre des matieres en suspension dans un liquide et systeme permettant de preparer des melanges liquide-matieres destines a la teinture au moyen de ce dispositif
EP0908284A3 (fr) * 1997-10-06 2001-03-07 Gebrüder Lödige Maschinenbaugesellschaft mbH Disposif de remplissage de produits en vrac

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1947851A (en) * 1930-01-31 1934-02-20 Nat Aniline & Chem Co Inc Mixing apparatus
FR1005450A (fr) * 1947-07-22 1952-04-10 Procédé et dispositif pour la pulvérisation de tous liquides et le fibrage de matières thermoplastiques
FR1146287A (fr) * 1956-03-26 1957-11-08 Procédé d'atomisation perfectionné et dispositifs pour l'application de ce procédé
US3246883A (en) * 1963-01-02 1966-04-19 Ashbrook Corp Fluid mixing method and apparatus
FR1450789A (fr) * 1965-07-15 1966-06-24 Trompe tourbillonnaire d'atomisation et de mélange
US3960175A (en) * 1974-08-16 1976-06-01 Veb Chemieanlagenbau Und Montagekombinat Leipzig Installation for charging liquids, particularly fermentation liquids, with gas
US4125331A (en) * 1977-05-09 1978-11-14 The Dow Chemical Company Mixing apparatus
CA1082427A (fr) * 1977-09-01 1980-07-29 Hassan A. Hamza Appareil servant a melanger une poudre a un liquide, et methode connexe
US4125334A (en) * 1977-11-17 1978-11-14 Coal Industry (Patents) Limited Apparatus for mixing two flowable substances

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419280A1 (fr) * 1989-09-21 1991-03-27 Halliburton Company Appareil de mélange
EP0908284A3 (fr) * 1997-10-06 2001-03-07 Gebrüder Lödige Maschinenbaugesellschaft mbH Disposif de remplissage de produits en vrac
WO2000056432A1 (fr) * 1999-03-19 2000-09-28 Termoelettronica S.P.A. Dispositif permettant de mettre des matieres en suspension dans un liquide et systeme permettant de preparer des melanges liquide-matieres destines a la teinture au moyen de ce dispositif

Also Published As

Publication number Publication date
EP0263996A3 (en) 1989-12-13
DE3707880A1 (de) 1988-04-21
DE3777059D1 (de) 1992-04-09
EP0263996B1 (fr) 1992-03-04

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