EP4140571B1 - Mélangeur destiné à la fabrication d'un produit coulant et procédé permettant de faire fonctionner un mélangeur - Google Patents

Mélangeur destiné à la fabrication d'un produit coulant et procédé permettant de faire fonctionner un mélangeur Download PDF

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Publication number
EP4140571B1
EP4140571B1 EP22183548.1A EP22183548A EP4140571B1 EP 4140571 B1 EP4140571 B1 EP 4140571B1 EP 22183548 A EP22183548 A EP 22183548A EP 4140571 B1 EP4140571 B1 EP 4140571B1
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EP
European Patent Office
Prior art keywords
mixing container
product
mixing
outlet
inlet
Prior art date
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EP22183548.1A
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German (de)
English (en)
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EP4140571A3 (fr
EP4140571A2 (fr
Inventor
Stephan Berents
Sven Vogt
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A BERENTS & Co KG GmbH
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A BERENTS & Co KG GmbH
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Publication of EP4140571A3 publication Critical patent/EP4140571A3/fr
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    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
    • 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
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/52—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle with a rotary stirrer in the recirculation tube
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/808—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers driven from the bottom of the receptacle

Definitions

  • the present invention relates to a mixing device for producing a flowable product with a mixing container which has a first inlet and an outlet, wherein a homogenization device is arranged on the mixing container in the region of the outlet.
  • the invention further relates to a method for operating a mixing device which has a mixing container with a first inlet and an outlet, wherein a product contained within the mixing container is homogenized by a homogenization device arranged in the region of the outlet of the mixing container.
  • Such a mixing device with a homogenizing device is known, for example, from EN 10 2004 040 446 A1 known and can be used, for example, to produce flowable, for example pasty, products such as creams or ointments.
  • the homogenization device introduces shear forces into the product and thereby leads to homogenization, i.e. a fine mixing of the product.
  • the product is also conveyed out of the outlet of the mixing container through the homogenization device.
  • a powdery additive can be mixed directly into the mixing container. For this purpose, a negative pressure or vacuum is generated in the mixing container and the powder is then sucked in using this negative pressure. On the one hand, this can lead to undesirable dust development in the mixing container.
  • Further mixing devices are CN 104 096 507 A , WO 01/53 191 A2 , US 5 564 825 A , EP 2 602 019 A1 , WO 03/066 203 A1 , DE 20 2016 000 169 U1 and WO 2014/131 644 A1 known, whereby the WO 03/066 203 A1 a mixing device according to the preamble of claim 1 and a method according to the preamble of claim 10 are disclosed.
  • the object of the present invention is to reduce product loss as well as dust and foam formation in the mixing container.
  • a mixing device for producing a flowable product comprising a mixing container having a first inlet and an outlet, and a homogenization device designed as a rotor-stator homogenizer, which is arranged on the mixing container in the region of the outlet, wherein the mixing device comprises a conveying device with a suction side and a pressure side, wherein the suction side is connected to the outlet and the pressure side can optionally be connected to the first inlet of the mixing container, and an addition device for adding an additive, in particular a powdery additive, which is arranged between the outlet of the mixing container and the suction side of the conveying device.
  • a conveying device is provided in addition to the homogenizing device.
  • the conveying device allows the conveying capacity to be adjusted independently of the homogenizing capacity of the homogenizing device, so that it is possible to increase the conveying capacity without subjecting the mixture to increased shear in the homogenizing device.
  • the addition device for adding the additive is provided according to the invention between the outlet of the mixing container and the conveying device.
  • the conveying device can suck in the additive together with the mixture emerging from the outlet of the mixing container or the homogenizing device and, for example, convey it back into the mixing container via the first inlet. With this procedure, dust and foam development in the mixing container can be greatly reduced.
  • any air sucked in together with the additive is also conveyed into the mixing container by the conveying device.
  • the air can settle above the product in the mixing container, while the additive remains in the product. It is not necessary to create a negative pressure in the mixing container. to suck in the additive. An undesirable loss of product due to the creation of a negative pressure can be prevented.
  • the product can then be further homogenized using the homogenization device.
  • the homogenization device is arranged on the mixing container in the area of the outlet.
  • the homogenization device is arranged on the suction side of the conveying device, so that the product homogenized by the homogenization device can be sucked in by the conveying device.
  • the homogenization device can be arranged in the area of the outlet inside the mixing container or outside the mixing container. Alternatively, it is possible for the homogenization device to be arranged in the area of the outlet partly inside and partly outside the mixing container.
  • the outlet of the mixing container is preferably arranged in a bottom region of the mixing container or on an underside of the mixing container.
  • the mixing device comprises a first return line between the pressure side of the conveying device and the first inlet of the mixing container.
  • the product and any additive added to the product can be conveyed back into the mixing container via the return line.
  • the first return line enables circulation of the product outside the mixing container.
  • a further addition device for adding additive, in particular powdered can be provided in the first return line.
  • At least one valve can be provided in the return line. The volume flow in the return line can be adjusted via the valve.
  • the volume flow through the return line can be set to zero in order to completely prevent the product from being returned to the mixing container. The latter can be necessary, for example, if the product is to be withdrawn from the mixing container.
  • the mixing device comprises a second inlet of the mixing container in the region of the homogenization device.
  • An additive can optionally be added via the second inlet.
  • the second inlet can, for example, open into an inlet region of the homogenization device.
  • the mixing device comprises a second return line between the pressure side of the conveying device and the second inlet of the mixing container.
  • the return in the area of the homogenization device is particularly advantageous when small quantities of product are mixed which only fill the mixing container to a small extent.
  • At least one valve can be provided in the second return line.
  • the volume flow in the second return line can be adjusted via the valve.
  • the volume flow through the return line can be set to zero in order to completely prevent the product from being returned to the mixing container. The latter can be necessary, for example, if the product is to be withdrawn from the mixing container.
  • a design has proven to be particularly advantageous in which the mixing device has both the first return line described above and the second return line described above and a switching device by means of which the pressure side of the conveying device can be connected optionally to the first return line or the second return line.
  • Such a design offers the advantage that in a process that begins with small amounts of product, the product can initially be returned to the mixing container via the second return line and at a later point in the process, for example by adding more, a larger amount of product can be worked with, with the product then being returned to the mixing container via the first return line.
  • such a design can enable greater flexibility in using the mixing device for different amounts of product.
  • the mixing device comprises a product outlet connected to the pressure side of the conveying device. This makes it possible for the conveying device to convey the product out of the mixing device after the mixing process has been completed.
  • the product outlet can be optionally opened or closed so that the product can optionally be discharged from the mixing device.
  • the mixing device comprises a flow regulating device arranged between the outlet of the mixing container and the addition device.
  • the flow regulating device can be designed, for example, as a valve, in particular a throttle valve.
  • the flow regulating device can be designed as a turntable, which is arranged, for example, in the area of the outlet of the mixing container and/or in the inlet of the conveyor device.
  • the mixing device comprises a first return line between the homogenization device, in particular an outlet of the homogenization device, and the first inlet of the mixing container.
  • the product and any additive added to the product can be conveyed back into the mixing container via the return line.
  • the first return line enables circulation of the product outside the mixing container.
  • a further addition device for adding additive, in particular powdered can be provided in the first return line.
  • At least one valve can be provided in the return line.
  • the volume flow in the return line can be adjusted via the valve.
  • the volume flow through the return line can be set to zero in order to completely prevent the product from being returned to the mixing container. The latter can be necessary, for example, if the product is to be withdrawn from the mixing container.
  • the mixing device comprises a second inlet of the mixing container in a lower region of the mixing container, in particular in a lower third of a filling volume of the mixing container, preferably in a bottom region of the mixing container.
  • both the second inlet and the outlet are arranged in the lower region of the mixing container, in particular in a lower third of a filling volume of the mixing container, preferably in a bottom region of the mixing container.
  • the addition of an additive can optionally take place via the second inlet.
  • the mixing device comprises a second return line between the homogenization device, in particular an outlet of the homogenization device, and the second inlet of the mixing container.
  • a second return line between the homogenization device, in particular an outlet of the homogenization device, and the second inlet of the mixing container.
  • a design has proven to be particularly advantageous in which the mixing device has both the first return line described above and the second return line described above and a switching device by means of which the homogenization device can be connected optionally to the first return line or the second return line.
  • Such a design offers the advantage that in a process that begins with small amounts of product, the product can initially be returned to the mixing container via the second return line and at a later point in the process, for example by adding more, a larger amount of product can be used, with the product then being returned to the mixing container via the first return line.
  • such a design can enable greater flexibility in using the mixing device for different amounts of product.
  • the mixing device comprises a product outlet connected to the homogenization device. This makes it possible for the product to be removed from the mixing device after it has been dispensed by the homogenization device.
  • the product outlet can be optionally opened or closed so that the product can optionally be discharged from the mixing device.
  • the mixing device comprises an agitator arranged inside the mixing container.
  • the agitator can be provided so as to be rotatable about an axis of rotation of the mixing container, in particular a vertical axis of rotation.
  • the agitator preferably comprises one or more scrapers for scraping off product adhering to an inner wall of the mixing container.
  • the homogenization device is designed as a rotor-stator homogenizer.
  • Rotor-stator homogenizers typically comprise a rotor and a stator, which have concentric toothings.
  • the rotor can convey the flowable product radially outward towards the stator.
  • the stator typically comprises fixed elements, for example teeth, which are separated from one another by gaps.
  • the product conveyed radially outward is finely homogenized by shearing as it flows through the gaps.
  • the stator can be driven and rotate in the same or opposite direction as the rotor.
  • the homogenization device can be designed with several rotor and/or stator stages, for example in a radial arrangement or in an axial arrangement.
  • the conveying device is a positive displacement pump.
  • a positive displacement pump offers the advantage that a high suction force can be provided for sucking in the product and, if necessary, the additive.
  • the conveying device is a rotary piston pump or a diaphragm pump or a sinusoidal pump or an eccentric screw pump.
  • the pumps mentioned each offer a high suction power with low shear of the conveyed product and low vibrations introduced into the product. This enables the product to be conveyed in a particularly gentle manner.
  • the conveying device has a hollow shaft which is arranged concentrically to a drive shaft of the homogenization device.
  • a hollow shaft which is arranged concentrically to a drive shaft of the homogenization device.
  • the rotor of the homogenization device and the rotor of the conveying device can be mounted concentrically.
  • a compact, low-vibration design can be made possible.
  • Two separate drives are preferably provided to drive the homogenization device and the conveying device.
  • the mixing container is designed to be liquid-tight and/or airtight.
  • a method for operating a mixing device which has a mixing container with a first inlet and an outlet also contributes to solving the problem mentioned at the outset, wherein a product contained within the mixing container is homogenized by a homogenization device designed as a rotor-stator homogenizer, which is arranged on the mixing container in the region of the outlet, wherein a conveying device connected to the outlet of the mixing container sucks the product out of the outlet, and an additive, in particular a powdery additive, is added by an addition device arranged between the outlet of the mixing container and the conveying device.
  • a homogenization device designed as a rotor-stator homogenizer
  • the method can achieve the same advantages that have already been described in connection with the mixing device according to the invention.
  • the homogenization device is arranged on the mixing container in the area of the outlet.
  • the homogenization device can be arranged in the area of the outlet inside the mixing container or outside the mixing container. Alternatively, it is possible for the homogenization device to be arranged in the area of the outlet partly inside and partly outside the mixing container.
  • a pressure in the range of 0.95 bar to 1.05 bar is set in the mixing container, in particular normal pressure or ambient pressure, for example 1.01 bar, or that the mixing container is ventilated to the ambient pressure without differential pressure. In this respect, it is not necessary to generate a negative pressure or a vacuum in the mixing container.
  • the conveying device conveys a product-additive mixture to the first inlet of the mixing container through a first return line.
  • the conveying device conveys a product-additive mixture through a second return line to a second inlet of the mixing container, via which the product-additive mixture is fed in the region of the outlet, in particular in the region of the homogenization device.
  • the product-additive mixture in a first process step of the operation is conveyed through the second return line to the second inlet and in a second process step of the operation following the first process step the product-additive mixture is conveyed through the first return line to the first inlet.
  • smaller amounts of the product-additive mixture can be mixed and conveyed in the first process step than in the second process step.
  • the product or the product-additive mixture is mixed in the mixing container by an agitator.
  • the representation in Fig.1 shows a first embodiment of a mixing device 1 according to the invention for producing a flowable product.
  • the mixing device 1 comprises a mixing container 2, which is designed to be liquid-tight and/or gas-tight. In the upper area, the mixing container comprises a first inlet 5.
  • the interior 3 of the mixing container is also equipped with an agitator, which in Fig.1 is not shown to simplify the illustration.
  • the agitator is preferably rotatable about an axis of rotation D, which is arranged vertically in the embodiment.
  • the agitator can have one or more blades that are mounted so as to be rotatable about the axis of rotation.
  • the agitator can comprise one or more scrapers that are designed to scrape off material adhering to an inner wall of the mixing container 2 during a movement about the axis of rotation.
  • the agitator can consist of several independent agitating elements.
  • the agitator can be designed as a coaxial agitator which comprises a stripping agitator and a conveying agitator driven independently of the stripping agitator.
  • an outlet 15 is provided, through which the product can be drawn off from the mixing container 2.
  • a homogenization device 4 is arranged on the mixing container 2, here inside the mixing container 2, through which the product can be finely homogenized.
  • the homogenization device 4 is a rotor-stator homogenizer.
  • the mixing device 1 comprises a conveying device 7 with a suction side 7.1 and a pressure side 7.2, the suction side 7.1 being connected to the outlet 15 of the mixing container 2, in particular to the homogenization device 4, and the pressure side 7.2 being optionally connectable to the first inlet 5 of the mixing container 2.
  • an addition device 10 for adding an additive in particular a powdered one, is also provided.
  • the conveying device 7 is arranged externally of the mixing container 2 and can, as in Fig.1 shown, be integrated into a base section of the mixing device 1.
  • the conveying device 7 comprises a drive shaft 9 designed as a hollow shaft, which is arranged concentrically to a drive shaft 8 of the homogenization device 4. This enables a space-saving arrangement.
  • the conveying device 7 is designed as a positive displacement pump. Particularly preferred is a design of the conveying device 7 as a rotary piston pump or diaphragm pump or sinusoidal pump or eccentric screw pump, since this enables the product to be conveyed in a particularly gentle, low-shear manner.
  • the mixing device 1 further comprises a first return line 11 between the pressure side 7.2 of the conveying device 7 and the first inlet 5 of the mixing container 2.
  • the product conveyed by the conveying device 7 can be returned to the mixing container via this return line 11. Since the addition of powdered additives on the suction side 7.1 of the conveying device 7 and the additives can already mix in the return line 11, dust development when introducing the product into the mixing container 2 can be effectively reduced or prevented.
  • a product outlet 13 is also provided on the pressure side 7.2 of the conveying device 7.
  • the product outlet 13 is designed as a valve that can be optionally opened in order to withdraw the product from the mixing device 1.
  • the product can be conveyed through the conveying device 7.
  • the mixing device 1 also comprises a second return line 12 between the pressure side of the conveying device 7 and a second inlet 6 of the mixing container 1, which is arranged in the area of the homogenization device 4.
  • the second return line 12, in conjunction with the second inlet 6, enables small amounts of the product to be circulated.
  • the second inlet 6 opens into a channel running vertically on the inner wall of the container, which ends in an inlet area of the homogenization device 4.
  • the second inlet 6 is arranged in a lower area of the mixing container 1, here in a lower third of a filling volume of the mixing container 1, more precisely in a bottom area of the mixing container 1.
  • the mixing device 1 comprises a switching device which is formed from two valves 17, 19 connected to the pressure side 7.2 of the conveying device 7.
  • the switching device 17, 19 enables the pressure side 7.2 of the conveying device 7 to be connected optionally to the first return line 11 or the second return line 12.
  • the mixing container 2 comprises a further addition device 20 in the region of its outlet 5, here in the inlet region of the homogenization device 4.
  • a second embodiment of a mixing device 1 according to the invention is shown.
  • the mixing device 1 according to the second embodiment corresponds essentially to the mixing device according to the first embodiment with the difference that in the second embodiment two separate, non-concentrically arranged drive shafts 8, 9 are provided for driving the homogenization device 4 and the conveying device 7.
  • the drive shaft 8 of the homogenization device 4 is rotatable about a vertical axis of rotation which is parallel to the axis of rotation D of the agitator (not shown), in particular identical to this axis of rotation D.
  • the drive axis 9 of the conveying device 7 is arranged at an angle relative to the drive axis 8 of the homogenization device 4, preferably at an angle in the range of 15 to 45°, for example at 30°.
  • a method can be used in which a product contained within the mixing container 2 is homogenized by the homogenization device 4 arranged in the region of the outlet 15 of the mixing container 2, wherein the conveyor device 7 connected to the outlet 15 of the mixing container 2 sucks the product out of the outlet 15, and an additive, in particular a powdery one, is added by an addition device 10 arranged between the outlet 15 of the mixing container 2 and the conveyor device 7.
  • a pressure in the range of 0.95 bar to 1.05 bar is set in the mixing container 2, in particular normal pressure, for example 1.01 bar. In this respect, it is not necessary to generate a negative pressure or a vacuum in the mixing container 2.
  • the mixing container can be ventilated to the ambient pressure without any differential pressure.
  • the product can be mixed with the additive in the mixing container 2 by the agitator of the mixing device 1.
  • the conveying device 7 conveys a mixture of the product and the additive to the first inlet 5 of the mixing container 2 through a first return line 11.
  • the product can optionally be returned to the mixing container 2 via the second return line 12.
  • the conveying device 7 conveys the product with the additive to the second inlet 6 of the mixing container 2 in the area of the homogenization device 4.
  • the product After completion of the mixing process, i.e. when the product has been sufficiently mixed and/or homogenized, the product can be withdrawn from the mixing device 1 via the product outlet 13.
  • a A bypass (not shown in the drawings) can be activated, which creates a direct connection between the outlet 15 of the mixing container and the pressure side 7.2 of the conveying device 7.
  • the product can then be conveyed solely by the conveying capacity of the homogenizing device 4, for example into the first return line 11, the second return line 12 or the product output 13.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (14)

  1. Appareil de mélange (1) pour la fabrication d'un produit fluide avec
    un récipient de mélange (2), qui présente une première entrée (5) et une sortie (15), et un dispositif d'homogénéisation configuré sous forme d'homogénéisateur rotor-stator (4)
    un dispositif de transport (7) avec un côté d'aspiration (7.1) et un côté de refoulement (7.2), le côté d'aspiration (7.1) étant relié à la sortie (15) du récipient de mélange (2) et le côté de refoulement (7.2) pouvant être relié au choix à la première entrée (5) du récipient de mélange (2), et
    un dispositif d'ajout (10) pour l'ajout d'une substance d'ajout, notamment pulvérulente, qui est agencé entre la sortie (15) du récipient de mélange (2) et le côté d'aspiration (7.1) du dispositif de transport (7), caractérisé en ce que
    le dispositif d'homogénéisation (4) est agencé sur le récipient de mélange (2) dans la zone de la sortie (15).
  2. Appareil de mélange (1) selon la revendication 1, caractérisé par une première conduite de retour (11) entre le côté de refoulement (7.2) du dispositif de transport (7) et la première entrée (5) du récipient de mélange (2).
  3. Appareil de mélange (1) selon l'une quelconque des revendications précédentes, caractérisé par une deuxième entrée (6) du récipient de mélange (2) dans la zone du dispositif d'homogénéisation (4) et une deuxième conduite de retour (12) entre le côté de refoulement (7.2) du dispositif de transport (7) et la deuxième entrée (6) du récipient de mélange (2).
  4. Appareil de mélange (1) selon l'une quelconque des revendications précédentes, caractérisé par une sortie de produit (13) reliée au côté de refoulement (7.2) du dispositif de transport (7).
  5. Appareil de mélange (1) selon l'une quelconque des revendications précédentes, caractérisé par un agitateur agencé à l'intérieur du récipient de mélange (2).
  6. Appareil de mélange (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de transport (7) est une pompe volumétrique.
  7. Appareil de mélange (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de transport (7) est une pompe à piston rotatif ou une pompe à membrane ou une pompe sinusoïdale ou une pompe à vis excentrée.
  8. Appareil de mélange (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de transport (7) présente un arbre creux (9) qui est agencé concentriquement à un arbre d'entraînement (8) du dispositif d'homogénéisation (4).
  9. Appareil de mélange (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le récipient de mélange (2) est configuré sous forme fermée de manière étanche aux liquides et/ou à l'air.
  10. Procédé d'exploitation d'un appareil de mélange (1) qui présente un récipient de mélange (2) avec une première entrée (5) et une sortie (15),
    un produit contenu à l'intérieur du récipient de mélange (2) étant homogénéisé par un dispositif d'homogénéisation (4) configuré sous forme d'homogénéisateur rotor-stator,
    un dispositif de transport (7) relié à la sortie (15) du récipient de mélange (2) aspirant le produit hors de la sortie (15), et
    une substance d'ajout, notamment pulvérulente, étant ajoutée par un dispositif d'ajout (10) agencé entre la sortie (15) du récipient de mélange (2) et le dispositif de transport (7),
    caractérisé en ce que
    le dispositif d'homogénéisation (4) est agencé sur le récipient de mélange (2) dans la zone de la sortie (15).
  11. Procédé selon la revendication 10, caractérisé en ce qu'une pression dans la plage allant de 0,95 bar à 1,05 bar, notamment une pression normale, par exemple 1,01 bar, est ajustée dans le récipient de mélange (2), ou en ce que le récipient de mélange est ventilé sans pression différentielle par rapport à la pression ambiante.
  12. Procédé selon l'une quelconque des revendications 10 ou 11, caractérisé en ce que le dispositif de transport (7) transporte, par une première conduite de retour (11), un mélange produit-substance d'ajout vers la première entrée (5) du récipient de mélange (2).
  13. Procédé selon l'une quelconque des revendications 10 ou 11, caractérisé en ce que le dispositif de transport (7) transporte, par une deuxième conduite de retour (12), un mélange produit-substance d'ajout vers une deuxième entrée (6) du récipient de mélange (2), par l'intermédiaire de laquelle le mélange produit-substance d'ajout est amené dans la zone de la sortie (15).
  14. Procédé selon l'une quelconque des revendications 10 à 13, caractérisé en ce que le produit ou le mélange produit-substance d'ajout est mélangé dans le récipient de mélange (2) par un agitateur.
EP22183548.1A 2021-08-24 2022-07-07 Mélangeur destiné à la fabrication d'un produit coulant et procédé permettant de faire fonctionner un mélangeur Active EP4140571B1 (fr)

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US5564825A (en) * 1992-12-02 1996-10-15 Shrader Canada Limited Integral inlet valve and mixer to promote mixing of fluids in a tank
DE20000841U1 (de) * 2000-01-19 2000-03-30 Tuchenhagen GmbH, 21514 Büchen Düsenvorrichtung in einer Auflöseapparatur zur Auflösung eines Feststoffes in einem Lösungsmittel
DE10204921C1 (de) * 2002-02-07 2003-10-16 Romaco Ag Frymakoruma Rheinfel Dispergier-Vorrichtung
DE102004040446A1 (de) 2004-08-20 2006-03-09 A. Berents Gmbh & Co Kg Vorrichtung und Verfahren zum Mischen eines fließfähigen Produkts und eines insbesondere pulverförmigen Zuschlagstoffes
RU2491984C2 (ru) 2008-01-16 2013-09-10 Тетра Лаваль Холдингз энд Финанс С.А. Комбинированный смеситель
DE102010005517B4 (de) 2010-01-23 2012-04-19 Gea Tuchenhagen Gmbh Dispergierpumpe
JP2011036862A (ja) * 2010-08-05 2011-02-24 Sintokogio Ltd 循環式分散システム及び循環式分散方法
DE102010042209A1 (de) 2010-10-08 2012-04-12 Bayer Materialscience Aktiengesellschaft Herstellung von Kohlenstoffnanoröhren -haltigen Dispersionen
WO2014131644A1 (fr) * 2013-03-01 2014-09-04 Tetra Laval Holdings & Finance S.A. Mélangeur de traitement de liquide et méthode associée
CN104096507A (zh) * 2014-07-25 2014-10-15 苏州世名科技股份有限公司 固液混合装置
DE202016000169U1 (de) * 2016-01-14 2017-04-20 Symex Gmbh & Co. Kg Pump- und/oder Mischeinrichtung zum Fördern, Homogenisieren und/oder Dispergieren fließfähiger Produkte
DE202021104186U1 (de) 2021-08-05 2021-11-16 Axel Wittek Bodenelement für eine Anlage mit Rotor-Stator-System

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EP4140571A2 (fr) 2023-03-01
DE102021209275A1 (de) 2023-03-02

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