EP1155733A1 - Homogénéisateur pour la production de produits coulables - Google Patents

Homogénéisateur pour la production de produits coulables Download PDF

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Publication number
EP1155733A1
EP1155733A1 EP00110724A EP00110724A EP1155733A1 EP 1155733 A1 EP1155733 A1 EP 1155733A1 EP 00110724 A EP00110724 A EP 00110724A EP 00110724 A EP00110724 A EP 00110724A EP 1155733 A1 EP1155733 A1 EP 1155733A1
Authority
EP
European Patent Office
Prior art keywords
rotor
homogenizer
toothing
radially
openings
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
EP00110724A
Other languages
German (de)
English (en)
Other versions
EP1155733B1 (fr
Inventor
Erwin Seefried
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.)
Vakumix Ruehr- und Homogenisiertechnik AG
Original Assignee
Vakumix Ruehr- und Homogenisiertechnik 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 Vakumix Ruehr- und Homogenisiertechnik AG filed Critical Vakumix Ruehr- und Homogenisiertechnik AG
Priority to EP00110724A priority Critical patent/EP1155733B1/fr
Priority to DE50011334T priority patent/DE50011334D1/de
Publication of EP1155733A1 publication Critical patent/EP1155733A1/fr
Application granted granted Critical
Publication of EP1155733B1 publication Critical patent/EP1155733B1/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
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • 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
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • 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

Definitions

  • the invention relates to a homogenizer for homogenizing flowable materials, with a rotor and a stator, the have teeth which are concentric with one another.
  • Homogenizers are among others in pharmaceutical, cosmetic, chemical and food industries for manufacturing of creams, ointments, pastes, mayonnaises and similar products used. They are usually at the bottom of a mixing container arranged in which the substances are mixed and homogenized become.
  • the homogenizer is often used as a rotor-stator dispersing machine trained, but can also be a so-called Circulating agitator to achieve a better pumping effect his.
  • a generic homogenizer is, for example, out DE 195 37 303 A1 known.
  • the homogenization process may be required initially only after submitting one or a few of the ingredients you want to start and during the ongoing homogenization either in Add batches or continuously to the mix.
  • the invention has for its object a device of the type mentioned at the beginning, which is a simple and Safe admixing of substances to the mix or container content enables, in particular, safe feeding of difficult to mix components such as powders, liquids, hot fats, or the like.
  • the invention solves this problem in that the homogenizer Devices for the separate supply of two substances in has the homogenizer inlet, one of which is radially inside and the second radially outside of a first rotor toothing flows into the inlet.
  • each is under a homogenizer Understand facility using kinetic energy achieved a mixing and / or homogenizing effect.
  • the Homogenizer can be designed as a rotor-stator dispersing machine be the kinetic energy of the rotor in the first place Line through a strong shear and swirl energy in Dispersing effect and so intensive homogenization achieved. Because of this dispersing effect, they produce Rotor-stator dispersing machines are only proportionate low pumping action, so high drive energies are required could be.
  • the homogenizer has a rotor and a stator that can be rotated relative to each other.
  • the stator is preferably stationary and the rotor is rotatable, however, this is not absolutely necessary in the context of the invention. Possibly. can also the stator (e.g. counter to Rotor) can be rotated. The only thing that matters is that The rotor and stator can rotate relative to each other around the bottom Homogenizing and dispersing action described in more detail achieve.
  • the rotor and stator have teeth that are concentric with one another on.
  • toothing denotes any openings in a circumferential wall of the rotor or Stator through which the mix in the homogenizer operation in the radial direction penetrates to the outside.
  • Such an interlocking can create individual openings in an otherwise closed, in Have circumferential wall, but often the toothing formed by a on a peripheral portion a plurality of rotor or stator arranged by itself axially extending teeth, the baffles for the homogenized material exhibit. So far in the claims and the description the terms “axial” or "radial” are used, the axial direction is always through the axis of rotation of the rotor Are defined.
  • the technical effect of the concentric gears is the following: that in the usually axial inlet of the homogenizer flowing in is mixed from the radial innermost rotor teeth detected and at a peripheral speed according to the peripheral speed of this Gearing applied. Supported by the centrifugal force (if necessary through separate pump blades in the rotor or the pumping action the gear surfaces) the material is thrown outwards and hits the with high kinetic energy then the following stator teeth. The kinetic energy of the Good is converted into a dispersing effect. Radially outside from this first stator toothing further rotor and connect stator gears if necessary.
  • the feeders mentioned for the separate feed two substances flow into the area of the homogenizer inlet. This means that their mouth openings are in one spatial area in which during homogenizer operation due to the suction effect of the homogenizer sets a pressure that is lower than the pressure in the above Feeding devices or lines.
  • first rotor toothing denotes that rotor toothing seen in the radial direction between the two feed devices is arranged. Usually will it is also the radially innermost rotor toothing act, but this is not mandatory.
  • the essence of the invention is to mix them Add substances separately and only immediately mix with each other before dispersion in the homogenizer.
  • a radial separation of the feed devices mentioned provided by the first rotor toothing So must one through the one fed radially inside the first rotor toothing First pass material through this rotor toothing, before being in contact with it by the radially outside substance introduced into this interlocking can occur. Because the homogenizer Mix material fed in during operation radially outwards promotes, causes the radial separation of the invention a particularly high security against both feeding devices unwanted repulsion of supplied substances in the each other feed device.
  • the powder is through the radially inner, the liquid through the radially outer Feeder fed to the homogenizer.
  • the radial one Separation of the two feed devices by the first rotor toothing as well as the conveyance of powder and powder Liquid radially outward causes a kickback of liquid in the area of the powder feed does not take place and so the powder supply sticks together, the formation of powder agglomerates that are difficult to redisperse and the like is avoided.
  • the radially inner Powder feeder can operate completely be kept dry.
  • the radially inner feed device only via the first Rotor toothing is in connection with the homogenizer, if so the total amount of powder supplied by this first Enter the rotor teeth into the homogenizer got to.
  • the total amount of liquid is radially outside of this first toothing supplied so that a contact between Powder and liquid only take place in one area which the powder already has due to the first rotor toothing Has experienced acceleration and with high kinetic energy meets the liquid phase.
  • This kinetic energy of the Powder promotes finely divided incorporation into the liquid phase and prevents the formation of unwanted powder agglomerates.
  • the negative pressure created in the inlet of the homogenizer ensures constant suction of both liquid as well as powder.
  • the first rotor toothing mentioned is preferably in the form of cylindrical, Wall formed concentrically to the rotor axis openings formed therein.
  • it can have a constructive design like that from EP-A-0 988 887 (see there in particular FIG. 3) known so-called Protective toothing.
  • this first Rotor toothing also additionally has the function of that mentioned EP-patent take over disclosed protective teeth, namely the protection of the homogenizer against damage or Destruction by hard foreign bodies, as such foreign bodies in usually present in solids to be mixed in, such as powders are and therefore radial in the context of the present invention be caught within the first rotor toothing can, if the openings arranged therein a clear Have width that is less than the minimum size to be kept Foreign body.
  • the openings in the first rotor toothing can be rectangular be formed, they can have slants for funding.
  • the term "funding slants" means that the wall surfaces of the Openings do not run exactly in the axial or radial direction, but inclined to the radial or axial direction, so that penetrating powder not only in the circumferential direction is accelerated, but also an acceleration in particular radially outwards, possibly also in Experienced axial direction.
  • the first rotor toothing is usually an axial height of a few centimeters or more. It is preferred that this first rotor toothing seen in the axial direction at least two, preferably at least three, one above the other arranged rows of openings.
  • the rotor can also have pump blades around the homogenizer in addition to the dispersing effect, a higher conveying effect To give (pumping effect).
  • the pump blades are both radially inside as well as radially outside of the first rotor toothing extend. There will then be a pumping action on both the radial Powder fed within this toothing as well to the liquid radially supplied outside as well as the resulting powder / liquid mixture exercised.
  • the pump wings in this case extend through the first rotor toothing through it.
  • the present invention also relates to the use of such a homogenizer for mixing in a solid in a flowable medium.
  • the solid in particular a powder
  • the homogenizer according to the invention has one with a hub 2 provided shaft 1, not by one in the drawing shown drive is driven.
  • the shaft 1 is a rotor 3 rotatably connected.
  • the rotor 3 has two to each other concentric rotor teeth 4 and 5.
  • In the Rotor toothing 4 is the first (inner) rotor toothing.
  • With the homogenizer housing 6 is the stator connected, the two mutually concentric stator teeth 7, 8 has.
  • the two stator teeth 7, 8 and the outer rotor teeth 5 each face axially Rotor or stator extending teeth, as the expert are common.
  • the first rotor toothing 4 is as one formed with openings 18 cylindrical wall, such as can be seen in particular in FIG. 3.
  • the Process of the homogenizer forms. It is with a drain nozzle 12 connected.
  • the homogenizer has two separate feed devices on, a radially inner feed device 13 (preferably for powder) and a radially outer feed device 14 which an annular chamber immediately before the inlet of the homogenizer 15 has.
  • a ring wall 16 separates the two feed devices, so that through the inner feeder 13th Powder supplied first through the first rotor toothing 4 must pass through before passing through the second feeder 14, 15 supplied liquid come into contact can.
  • the rotor of the homogenizer Pump wing 17 (see Fig. 2) on both radially inside as well as radially outside of the first rotor toothing 4 extend. They increase the delivery rate of the homogenizer, cause a higher negative pressure in the Homogenizer inlet and thus in particular an improved one Powder suction.
  • the upper edge of the first rotor toothing runs 4 in a recess or groove of the partition 16, this avoids that significant amounts of powder the first rotor toothing 4 radially outwards into the Homogenizer can occur. Rather, it becomes practical total amount of powder supplied when passing through the first Provide rotor toothing 4 with kinetic energy homogeneous mixing into the liquid phase is facilitated.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Rotary Pumps (AREA)
EP00110724A 2000-05-19 2000-05-19 Homogénéisateur pour la production de produits coulables Expired - Lifetime EP1155733B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00110724A EP1155733B1 (fr) 2000-05-19 2000-05-19 Homogénéisateur pour la production de produits coulables
DE50011334T DE50011334D1 (de) 2000-05-19 2000-05-19 Homogenisator zur Herstellung fliessfähiger Stoffe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00110724A EP1155733B1 (fr) 2000-05-19 2000-05-19 Homogénéisateur pour la production de produits coulables

Publications (2)

Publication Number Publication Date
EP1155733A1 true EP1155733A1 (fr) 2001-11-21
EP1155733B1 EP1155733B1 (fr) 2005-10-12

Family

ID=8168774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110724A Expired - Lifetime EP1155733B1 (fr) 2000-05-19 2000-05-19 Homogénéisateur pour la production de produits coulables

Country Status (2)

Country Link
EP (1) EP1155733B1 (fr)
DE (1) DE50011334D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1475143A2 (fr) * 2003-05-09 2004-11-10 IKA - Werke GmbH & Co. KG Dispositif pour disperser ou homogénéiser
WO2007060501A1 (fr) * 2005-11-23 2007-05-31 Frymakoruma Ag Homogeneiseur comportant un rotor, un inducteur (vis inducteur) pouvant tourner dans le sens oppose au rotor et un rotor a contre-courant pouvant tourner en direction opposee au rotor
FR2929133A1 (fr) * 2008-03-31 2009-10-02 Vmi Sa Dispositif de melange comprenant un conduit d'amenee de particules debouchant dans la zone de turbulences

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744763A (en) * 1970-01-30 1973-07-10 Bayer Ag Apparatus for producing emulsions or suspensions
US4176972A (en) * 1978-08-09 1979-12-04 National Gypsum Company Coaxial pump mixer
US4529321A (en) * 1980-02-13 1985-07-16 Rhone-Poulenc Textile Device for the preparation of dispersions
US4884893A (en) * 1987-07-10 1989-12-05 Gaston County Dyeing Machine Co. Method and apparatus for generating and dispersing immiscible liquid particles in a carrier liquid and dispensing said carrier liquid
EP0362168A1 (fr) * 1988-09-13 1990-04-04 Nemo Ivarson Procédé et dispositif pour mélanger des particules et du liquide
EP0709131A1 (fr) * 1994-10-26 1996-05-01 Societe Des Produits Nestle S.A. Mélange de fluides
US5590961A (en) * 1992-12-16 1997-01-07 Niro Holding A/S Method for injecting a first fluid into a second fluid and an apparatus for carrying out the method
US5968575A (en) * 1993-01-29 1999-10-19 Niro Holding A/S Method for injecting a product into a fluid, and an apparatus for carrying out the method
WO2000001474A1 (fr) * 1998-07-02 2000-01-13 Wella Aktiengesellschaft Procede pour la preparation d'emulsions ou de suspensions aqueuses
EP0988887A1 (fr) * 1998-08-25 2000-03-29 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Homogénisateur avec un dispositif de protection sur le rotor

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744763A (en) * 1970-01-30 1973-07-10 Bayer Ag Apparatus for producing emulsions or suspensions
US4176972A (en) * 1978-08-09 1979-12-04 National Gypsum Company Coaxial pump mixer
US4529321A (en) * 1980-02-13 1985-07-16 Rhone-Poulenc Textile Device for the preparation of dispersions
US4884893A (en) * 1987-07-10 1989-12-05 Gaston County Dyeing Machine Co. Method and apparatus for generating and dispersing immiscible liquid particles in a carrier liquid and dispensing said carrier liquid
EP0362168A1 (fr) * 1988-09-13 1990-04-04 Nemo Ivarson Procédé et dispositif pour mélanger des particules et du liquide
US5590961A (en) * 1992-12-16 1997-01-07 Niro Holding A/S Method for injecting a first fluid into a second fluid and an apparatus for carrying out the method
US5968575A (en) * 1993-01-29 1999-10-19 Niro Holding A/S Method for injecting a product into a fluid, and an apparatus for carrying out the method
EP0709131A1 (fr) * 1994-10-26 1996-05-01 Societe Des Produits Nestle S.A. Mélange de fluides
WO2000001474A1 (fr) * 1998-07-02 2000-01-13 Wella Aktiengesellschaft Procede pour la preparation d'emulsions ou de suspensions aqueuses
EP0988887A1 (fr) * 1998-08-25 2000-03-29 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Homogénisateur avec un dispositif de protection sur le rotor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1475143A2 (fr) * 2003-05-09 2004-11-10 IKA - Werke GmbH & Co. KG Dispositif pour disperser ou homogénéiser
EP1475143A3 (fr) * 2003-05-09 2005-07-06 IKA - Werke GmbH & Co. KG Dispositif pour disperser ou homogénéiser
US7325966B2 (en) 2003-05-09 2008-02-05 Ika-Werke Gmbh & Co. Kg Device for dispersion and/or homogenization
WO2007060501A1 (fr) * 2005-11-23 2007-05-31 Frymakoruma Ag Homogeneiseur comportant un rotor, un inducteur (vis inducteur) pouvant tourner dans le sens oppose au rotor et un rotor a contre-courant pouvant tourner en direction opposee au rotor
US8721168B2 (en) 2005-11-23 2014-05-13 Frymakoruma Ag Homogenizer device having a rotor and an advance wheel (inducer screw) that can rotate opposite to the rotor and a counter-current rotor that can rotate opposite to the rotor
FR2929133A1 (fr) * 2008-03-31 2009-10-02 Vmi Sa Dispositif de melange comprenant un conduit d'amenee de particules debouchant dans la zone de turbulences
WO2009122021A1 (fr) * 2008-03-31 2009-10-08 Vmi Ensemble de melange, et procede de fabrication d'une reparation utilisant ledit ensemble
US8960993B2 (en) 2008-03-31 2015-02-24 Vmi Blender assembly for producing a vacuum inside a vat and method for dispensing particles therein

Also Published As

Publication number Publication date
DE50011334D1 (de) 2006-02-23
EP1155733B1 (fr) 2005-10-12

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