EP0801974B1 - Dispositif d'homogénéisation et/ou de dispersion d'un matériau apte à écoulement libre - Google Patents

Dispositif d'homogénéisation et/ou de dispersion d'un matériau apte à écoulement libre Download PDF

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Publication number
EP0801974B1
EP0801974B1 EP97106280A EP97106280A EP0801974B1 EP 0801974 B1 EP0801974 B1 EP 0801974B1 EP 97106280 A EP97106280 A EP 97106280A EP 97106280 A EP97106280 A EP 97106280A EP 0801974 B1 EP0801974 B1 EP 0801974B1
Authority
EP
European Patent Office
Prior art keywords
stator
shut
dispersing
container
homogenising
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
EP97106280A
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German (de)
English (en)
Other versions
EP0801974A1 (fr
Inventor
Rainer Dr. Dipl.-Ing. Krebs
Wilfried Paschek
Uwe Dipl.-Ing. Schmidt
Jürgen Dipl.-Ing. Spitz
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.)
Haagen & Rinau Mischtechnik GmbH
Original Assignee
Haagen & Rinau Mischtechnik 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 Haagen & Rinau Mischtechnik GmbH filed Critical Haagen & Rinau Mischtechnik GmbH
Publication of EP0801974A1 publication Critical patent/EP0801974A1/fr
Application granted granted Critical
Publication of EP0801974B1 publication Critical patent/EP0801974B1/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
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/60—Pump mixers, i.e. mixing within a pump
    • B01F25/64—Pump mixers, i.e. mixing within a pump of the centrifugal-pump type, i.e. turbo-mixers
    • B01F25/642—Pump mixers, i.e. mixing within a pump of the centrifugal-pump type, i.e. turbo-mixers consisting of a stator-rotor system with intermeshing teeth or cages

Definitions

  • the invention relates to a device for homogenizing and / or dispersing a flowable material, which in particular for the production of viscous and semi-solid products, such as ointments, pastes, gels or dough in the field of pharmacy, chemistry, cosmetics or the food industry is.
  • EP 0 204 294 B1 describes a device for homogenizing and / or dispersing a flowable material with a container known, in the bottom area of a homogenizing and dispersing device is provided with a rotor / stator arrangement, which each have through openings through which the Rotor suctioned material is driven outwards and into one of a housing enclosed product space radially outside the Stator exits.
  • the lifting and lowering device for the plate is carried out sealingly through the bottom of the container.
  • This Seals can be difficult, and one is additional auxiliary energy to operate the lifting and lowering device required.
  • the sealing bushings also tend to Product deposits, which lead to a risk of contamination to lead. Due to the intended lifting and lowering device separate devices for the suction of additives, such as Powder or the like, in the suction zone of the homogenizing and Dispersing device can be provided, which is structurally relative is complex.
  • EP 0 290 033 describes a homogenizer for the production of flowable products known, in the bottom of the container a plate is arranged in the middle, one Access opening for the rotor / stator arrangement underneath having. Between the rim of the plate and the bottom of the container an annular gap with a small cross-section is always provided, which acts as a throttle opening. Since this annular gap also do not close when mixing and homogenizing the flow the pumping capacity is reduced by leakage losses. Since the annular gap must have a small cross section, highly viscous products cannot pass through this annular gap Containers are returned near its bottom.
  • this annular gap causes difficulties in cleaning the Device, and there are also difficulties with cleaning a shut-off device in the area of a product outlet downstream and radially outside the rotor / stator arrangement. Switching takes place by means of this shut-off device for continuous operation and internal circulation.
  • the invention aims to overcome the difficulties described above and in particular under Overcoming sealing problems and possible contamination risks a device for homogenizing and / or dispersing to provide a flowable good that is constructive a simple and reliable way of switching of internal circulation mixing or homogenization and Flow mixing and homogenization as far as possible Energy-saving way allowed and a residue-free enables automatic cleaning of the entire device.
  • this is a device for homogenizing and / or dispersing a flowable material with a Containers provided, in the bottom area of which a homogenizing and dispersing device with a rotor / stator arrangement is provided, which each have through openings, through the material sucked in by the rotor is driven outside and radially into a product space enclosed by a housing exits outside the stator, with a shut-off device in Open an internal circulation mixing or homogenization with return of the goods to the nearby container its bottom and in the closed position a flow mixing and homogenization, if necessary by means of pumping (external Circulation) allowed.
  • shut-off device can be rotated centrally on the stator mounted disc, which has recesses on the outer peripheral edge has which with circumferential recesses on the stator in the open position align and by rotating the disc in the closed position are closed.
  • the peripheral recesses are preferably the Disc and / or the stator arranged regularly.
  • the shut-off device according to the invention a switch from continuous operation, that is, with flow mixing and homogenization, and internal circulation, that is, circulation mixing or homogenization without the Implementation of mechanical power transmission elements the device for homogenizing and / or dispersing or Containers possible, so that sealing problems are more effective avoid. Also the actuation of the shut-off device is Switchover free from any danger of any of this caused contamination. Therefore, the invention Device also reliably and residue-free automatically clean overall. In addition, deposits can be found and avoid crust formation as all parts of the Homogenizing and dispersing device of the goods constantly and are sufficiently washed.
  • shut-off device is near the floor arranged of the container. This enables the Product flow in continuous operation as close as possible the exit point to the container is blocked off.
  • the rotatable disc has on the circumference, preferably regularly, arranged and in the following the exit from the rotor / stator arrangement Ridges projecting through the product space, through which the shut-off device can be brought into their open and closed positions and each in this is durable.
  • an actuation of the shut-off device is open hydrodynamic possible because of a certain angular momentum Gutstrom emerging from the stator on the circumference the webs attached to the rotatable disc. This will the shut-off device in its respective open position or Locked position held reliably. If the direction of rotation of the Rotor of the rotor / stator arrangement is reversed, so the Direction of action of the angular momentum reversed and the rotatable disc is in the corresponding other position by the flow forces of the crop flow and held in it.
  • Permanent magnets attached, which with an outside of the Collaborate housing arranged ring with permanent magnets such that opposing permanent magnets attract and thereby give the disc a torque without contact.
  • the product flow is tangential to a deflection device Bottom of the container returned to the container.
  • This allows the returned to the tank during internal circulation
  • Product stream from the intake stream of the homogenizing and dispersing device, which is centered in the bottom area of the container is directed to be separated.
  • Short circuit currents between the product stream returned to the interior of the container and the Leave the suction area of the homogenizing and dispersing device avoid yourself.
  • this deflection device also allows that the product flow from the rotor of the rotor / stator arrangement given angular momentum is reduced before the product flow in the Container is returned during internal circulation. This allows unfavorable rotational flows of the Avoid material flow inside the container.
  • one Feeder for additives such as powder
  • one Powder suction device in the homogenizing and dispersing device integrate. This is the case with the invention Device in the suction area of the homogenizing and Dispersing device opening and penetrating the stator Suction pipe for supplying liquids, powders or the like, provided to prevent deposits in the feed area a defined leakage gap between the pressure and the Has suction side of the homogenizing and dispersing device.
  • a device designated overall by 1 for Homogenize and / or disperse a flowable material explained.
  • This includes a schematically indicated container 2, in the bottom area 3 of which a total of 4 Homogenizing and dispersing device, preferably below the bottom region 3 of the container 2 is arranged.
  • the homogenization round Dispersing device 4 comprises a rotor 5, which is firmly connected to a shaft 6, which is not one Motor shown is driven, which is preferred in the illustration in Figure 1 is provided below.
  • the Rotor 5 forms several and not distributed in the circumferential direction Through openings shown in more detail for the flowable material.
  • the homogenizing and dispersing device 4 comprises one Stator 7, which is stationary on the container 2 in the bottom region 3 is provided.
  • the stator 7 has also not shown Through openings for the flowable goods.
  • the flowable good is, as illustrated by an arrow A in Figure 1, from above in the central area of the homogenizing and dispersing device 4 in the suction area through the stator 7 and is then by the arrangement comprising the rotor 5 and the stator 7 of the Homogenizing and dispersing device 4 and those present there Passages radially outward to the pressure area 9 in driven a product space 10, which from a housing 11 is enclosed.
  • a passage gap 12 (see left side in Figure 1) formed, which has a deflection device 13, the is integrally formed on the stator 7 in the example shown which with open passage gap 12 in the internal circulation operation the product flow tangential to the bottom region 3 of the container 2 in the same after passing through the homogenizing and Dispersing device 4 is conveyed back.
  • This passage gap 12 is associated with a shut-off device 14, which a Disc 15 rotatably mounted centrally on the stator 7.
  • disk 15 preferably has a regular circumferential edge arranged recesses 16, and on the peripheral edge of the stator 7 are also not shown, preferably regularly, arranged circumferential recesses provided.
  • the recesses 16 of the disc 15 are aligned the associated recesses on the peripheral edge of the stator 7, so that the passage gap 12 is released, and the crop flow after passing through the homogenizing and dispersing device 4 and out of the product space 10 at the pressure area 9 the aligned recesses 16 and the deflection device 13 tangential to the bottom region 3 of the container 2 and Passage gap 12 is conveyed back to the container to a internal circulation operation.
  • the rotatable disc 15 on the circumference, preferably regularly arranged, and in the Product space 10 projecting webs 17.
  • hydrodynamic actuation of the shut-off device 15 strikes from the homogenizing and dispersing device 4 emerging product stream with a certain angular momentum on the Web 17, so that depending on the direction of rotation of the rotor 5 by means of the action of the webs 17 by the product stream the disk 15 reliably in the example in FIG 1 open position shown is held.
  • the shut-off device 14 occupies its closed position.
  • This closed position is then a continuous operation if necessary external circulation realized in which the Gutstrom over a Outlet 18 leaves the device, and for example to one Collection container (not shown) is promoted, or by means of a pumping line at a greater height into container 2 in turn is initiated in the event of external revolution.
  • the closed position is also the disc 15 by the product flow, which meets the webs 17, held reliably.
  • the shut-off device is adjusted 14 in their open position and in their closed position in a hydrodynamic way.
  • FIG. 1 With 20 in Figure 1 is a device for additional introduction an additive, for example in the form of a powder suction 21 shown. Of course, other liquid ones can also be used or solid substances or mixtures thereof in the same or be forwarded in a similar manner.
  • the supply line is in the Suction area 8 of the homogenizing and dispersing device 4.
  • This device 20 for the additional introduction of an additive, such as powder or the like includes, inter alia, an in the Homogenizing and dispersing device 4 integrated suction pipe 22.
  • the suction pipe 22 passes through the stator 7 in one area above the rotor 5 and is sealed there. This intake pipe 22 opens into the suction area 8 of the homogenizing and Dispersing device 4.
  • This suction pipe 22 has a leakage gap 23 between the suction area 8 and the pressure area 9, formed by the product space 10 and the homogenizing and Dispersing device 4. Through this defined leakage gap 23 becomes a targeted leakage flow between the pressure area 9 and the suction area 8 of the homogenizing and dispersing device 4 maintained to the device 20 for additional additive to keep deposits free, when a suction valve of this device 20 is closed is. This can contaminate the additional Avoid adding additives by suction.
  • the invention is not based on the above described details limited, but there are numerous Changes and modifications possible, the expert in If necessary, will meet without the inventive concept leave.
  • the arrangement and storage of the rotatable disc 15 in a different way than shown be realized. It is essential, however, that one through a fixed plate and a plate that can be rotated for this purpose or disc 15 at the exit area for the return in Area of the bottom 3 of the container 2 a shut-off device 14 receives which has a passage gap for switching from Seal continuous operation and internal circulation operation or can release.
  • the switchover is made to if possible energy-saving way with a short switching distance, for example by only slightly turning the rotatable disc with regard to a solid plate or a corresponding training of the stator 7.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Food-Manufacturing Devices (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Developing Agents For Electrophotography (AREA)

Claims (9)

  1. Dispositif d'homogénéisation et/ou de dispersion d'un matériau coulant comportant un réservoir (2), dans la zone de fond (3) où est prévu un dispositif d'homogénéisation et de dispersion (4) comprenant un système de rotor et de stator (5, 7), qui ont chacun des ouvertures de passage par lesquelles la matière aspirée par le rotor (5) est chassée au dehors et sort dans une chambre de produits (10) entourée d'une enveloppe (11), un dispositif de blocage (14) permettant, en position d'ouverture, un mélange ou une homogénéisation par circulation interne avec retour de la matière dans le réservoir (2) au voisinage de son fond, et, en position de fermeture, un mélange ou une homogénéisation par circulation, le cas échéant au moyen d'un transvasement (circulation externe), caractérisé en ce que le dispositif de blocage (14) comprend un plateau central (15), pouvant tourner sur le stator (7), qui comporte, sur le bord de sa périphérie, des creux (16) qui s'alignent, en position d'ouverture, avec des trous périphériques sur le stator et qui sont fermés, en position de fermeture, par torsion du plateau (15).
  2. Dispositif suivant la revendication 1, caractérisé en ce que le dispositif de blocage (14) est prévu au voisinage du fond (3) du réservoir (2).
  3. Dispositif suivant la revendication 1 ou 2, caractérisé en ce que les creux (16) du plateau (15) et/ou les trous périphériques sur le stator (7) sont prévus répartis de manière régulière.
  4. Dispositif suivant l'une des revendications 1 à 3, caractérisé en ce que le plateau tournant (15) comporte des entretoises (17), prévues à sa périphérie et se dressant dans la chambre de produits (10), par lesquelles le dispositif de blocage (14) peut être amené en position d'ouverture ou de fermeture, et est respectivement stable dans celles-ci.
  5. Dispositif suivant la revendication 4, caractérisé en ce que les entretoises (17, 17') sont réparties, de manière régulière, à la périphérie du plateau tournant (15).
  6. Dispositif suivant la revendication 4 ou 5, caractérisé en ce que les entretoises peuvent être actionnées par le flux de matière pour commander le dispositif de blocage (14).
  7. Dispositif suivant l'une des revendications 1 à 7, caractérisé en ce que les entretoises (17') comportent des aimants permanents (30) qui coopèrent avec une bague (32), à l'extérieur de l'enveloppe (11), qui comporte des aimants permanents de façon que des aimants permanents opposés (30, 32) s'attirent et communiquent donc un moment de rotation sans contact au plateau (15).
  8. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que le flux de produits sort pour le mélange par circulation ou l'homogénéisation interne au moyen d'un dispositif de déversoir (13) qui est tangentiel au fond de réservoir (3).
  9. Dispositif suivant une des revendications précédentes, caractérisé par une tubulure d'aspiration (22) à l'arrivée du liquide, de la poudre, etc., qui débouche dans la zone d'aspiration (8) du dispositif d'homogénéisation et de dispersion (4), qui traverse le stator (7), et qui comporte, pour éviter le dépôt dans la zone d'arrivée, une fente de fuite (23) entre le côté sous pression (9) et le côté d'aspiration (8) du dispositif d'homogénéisation et de dispersion (4).
EP97106280A 1996-04-17 1997-04-16 Dispositif d'homogénéisation et/ou de dispersion d'un matériau apte à écoulement libre Expired - Lifetime EP0801974B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29606962U 1996-04-17
DE29606962U DE29606962U1 (de) 1996-04-17 1996-04-17 Vorrichtung zum Homogenisieren und/oder Dispergieren eines fließfähigen Guts

Publications (2)

Publication Number Publication Date
EP0801974A1 EP0801974A1 (fr) 1997-10-22
EP0801974B1 true EP0801974B1 (fr) 2000-08-09

Family

ID=8022700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106280A Expired - Lifetime EP0801974B1 (fr) 1996-04-17 1997-04-16 Dispositif d'homogénéisation et/ou de dispersion d'un matériau apte à écoulement libre

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Country Link
EP (1) EP0801974B1 (fr)
DE (2) DE29606962U1 (fr)
ES (1) ES2148870T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19829647A1 (de) 1998-07-02 2000-01-13 Wella Ag Verfahren zur Herstellung von wäßrigen Emulsionen oder Suspensionen
DE19916053B4 (de) * 1999-04-09 2005-05-19 Vakumix Rühr- und Homogenisiertechnik AG Vorrichtung zum Homogenisieren fließfähiger Stoffe
DE102005007175A1 (de) * 2005-02-16 2006-08-17 Knape, Sandra Vorrichtung und Verfahren zum Homogenisieren
EP2242566B1 (fr) * 2008-01-16 2020-11-11 Tetra Laval Holdings & Finance S.A. Mélangeur hybride
FR2929133B1 (fr) 2008-03-31 2010-12-10 Vmi Dispositif de melange comprenant un conduit d'amenee de particules debouchant dans la zone de turbulences
FR2970879B1 (fr) * 2011-01-31 2013-02-15 Vmi Dispositif de melange
DE202013002683U1 (de) * 2013-03-20 2013-04-22 Symex Gmbh & Co. Kg Vorrichtung zum Homogenisieren und/oder Dispergieren von Gütern

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH433200A (de) * 1964-06-18 1967-04-15 Forsch Inst Prof Ing Chem P Wi Verfahren und Vorrichtung zum Feinstzerkleinern von Stoffen
DE3009777C2 (de) * 1980-03-14 1985-09-12 Haagen & Rinau, 2800 Bremen Vorrichtung zum Mischen und Homogenisieren wenigstens zweier Medien
DE3220092A1 (de) * 1982-05-28 1983-12-01 Janke & Kunkel GmbH & Co KG Ika - Werk, 7813 Staufen Dispergiervorrichtung
DE8428385U1 (de) * 1984-09-27 1985-03-28 Haagen & Rinau, 2800 Bremen Mischvorrichtung
DE3519854C1 (de) * 1985-06-03 1987-02-05 Waldner Gmbh & Co Hermann Vorrichtung zum Mischen und/oder Homogenisieren eines fliessfaehigen Gutes,insbesondere einer Creme
DE3715331A1 (de) * 1987-05-08 1988-12-01 Berents Gmbh & Co Kg A Homogenisator fuer die herstellung fliessfaehiger produkte

Also Published As

Publication number Publication date
DE59702120D1 (de) 2000-09-14
DE29606962U1 (de) 1997-08-21
ES2148870T3 (es) 2000-10-16
EP0801974A1 (fr) 1997-10-22

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