EP1627676B1 - Appareil et procédé pour mélanger un produit fluide avec en particulier un additif poudreux - Google Patents

Appareil et procédé pour mélanger un produit fluide avec en particulier un additif poudreux Download PDF

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Publication number
EP1627676B1
EP1627676B1 EP05107516A EP05107516A EP1627676B1 EP 1627676 B1 EP1627676 B1 EP 1627676B1 EP 05107516 A EP05107516 A EP 05107516A EP 05107516 A EP05107516 A EP 05107516A EP 1627676 B1 EP1627676 B1 EP 1627676B1
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EP
European Patent Office
Prior art keywords
channel
admixing
mixing
product
container
Prior art date
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EP05107516A
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German (de)
English (en)
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EP1627676A1 (fr
Inventor
Alwin Berents
Stephan Berents
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A Berents & Co KG GmbH
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A Berents & Co KG GmbH
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Priority to DE202005020706U priority Critical patent/DE202005020706U1/de
Publication of EP1627676A1 publication Critical patent/EP1627676A1/fr
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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
    • B01F23/53—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
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • 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
    • 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
    • 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
    • B01F27/81—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow
    • B01F27/811—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump
    • B01F27/8111—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump the stirrers co-operating with stationary guiding elements, e.g. surrounding stators or intermeshing stators
    • 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
    • B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall

Definitions

  • the present invention relates to a mixing device for a flowable product, such as a liquid to pasty mix to which an additive is admixed.
  • a flowable product such as a liquid to pasty mix to which an additive is admixed.
  • the additive to be admixed may in particular be a powder, but also another Liquid, hot fat or the like.
  • Especially the mixing or mixing of powder in a flowable product during a mixing process in a mixing container is often associated with problems, which will be explained in more detail below
  • the invention relates to a method for admixing a particular powdered additive in a liquid or pasty product in a mixing container.
  • a mixing device of the type mentioned is for example in the EP 1 155 733 A1 disclosed.
  • the mixing device described here comprises a so-called homogenizer for homogenizing flowable substances.
  • This homogenizer consists of a rotor and a stator, which have mutually concentric teeth.
  • This homogenizer is normally arranged in the bottom region of a mixing container and conveys the flowable substance to be homogenized in the mixing container interior.
  • the device shown here is intended to serve in particular that the mixing in or mixing in of hard-to-mix constituents such as powders, liquids, hot fats or the like can be carried out simply and safely.
  • the mixing takes place here by separate supply of two substances in the homogenizer inlet.
  • a first supply device opens in the inlet of the homogenizer radially inside and a second supply means radially outside of a feed tube. Due to the arrangement of the two feeders in the region of the homogenizer inlet, it is intended to ensure that the mouth openings are in a spatial area by setting a pressure during the homogenizer operation due to the suction effect of the homogenizer Supply devices or lines is located. It is found out here that the substances to be mixed with one another are to be separated and mixed with one another only immediately before dispersion in the homogenizer.
  • the DE 199 16 05 A1 shows a similar device for homogenizing fluent substances. Also difficultly mixable substances such as powder, fats or the like are fed immediately before the homogenizer inlet, accumulated by the prevailing negative pressure and then dispersed in the homogenizer immediately and mixed with the container contents.
  • U1 is also a mixing device for mixing a consisting of at least two good components, substantially flowable mixed material shown.
  • a homogenizing unit is arranged vertically adjustable in the area of the floor. By lowering the homogenizing unit, a discharge of the conveyed product stream is achieved or the feeding of the further to be mixed good component before entering the homogenizer feasible. In the raised state, circulation circulation takes place through the homogenizer.
  • FIG. 1 Another embodiment of a device for admixing a pourable component to a liquid matrix is in the EP 0 570 335 A1 disclosed.
  • the basic material contained in a mixing container is led out via an outlet from the mixing container interior and returned via a circulation line back into the mixing container.
  • a circulation line In this external circulation line is a pump, which is arranged downstream of a solids introduction device having a cross-sectional constriction, having horizontal axis passage in which a feed line for mixing a pourable component to the guided through the passage good feeds.
  • the EP 0 036 067 A2 shows an apparatus for mixing and homogenizing at least two media, which is equipped with a arranged in the bottom region of the homogenizer.
  • a circulation in the mixing container is to take place here via the homogenizer; in a second operating position, the circulation is to take place through an external bypass line or circulation line.
  • This is in contrast to the previously mentioned DE 84 28 385 U1 not the entire homogenizer can be raised and lowered to achieve an adjustment from the first to the second operating position, but there is an axially adjustable control ring, which is equipped with annular control surfaces to achieve the leadership of the mix.
  • a first channel leading from the homogenizer into the mixing container is released, while at the same time sealingly abutting the second annular control surface on a second housing surface parallel thereto, so that a circulating line is not subjected to product flow.
  • a second channel is formed between the second control surface and the second housing surface, and thus instructs the recirculating line opening into this second channel with a product flow.
  • the first channel is no longer present due to the axial displacement of the control ring.
  • Another third operating position provides that both the first and the second channel are present, so that the mix can get back from the mixing container through the homogenizer both throttled inline operation in the mixing container interior and, as a result of a prevailing negative pressure in the mixing vessel Additional products can be sucked through the second channel.
  • This arrangement suffers from the problem that compared to the prior art mentioned above, although smaller masses are to be moved axially due to the use of a control ring, however, this control ring furthermore has large axial abutment surfaces for delimiting the channels. As a result, in particular a sealing or shutting off of a channel can be difficult.
  • the management and control of the control ring is complex.
  • no additive can be mixed with the present arrangement, when an external circulation takes place via a circulation line. Furthermore, after an external circulation of a product, not or only with great difficulty, additives, in particular powders, which swell or stick on contact with the product, can be sucked in / fed via this now wetted channel.
  • the DE 102 02 084 A1 discloses a mixing and homogenizing machine, with the particular products to be produced, which melt when solidifying / cooling at a certain temperature or in a small temperature range or solidify, such as suppositories or lipsticks.
  • This known homogenizer has in the container bottom a homogenizer, which is arranged below a cover which has coaxial with the homogenizer an inflow opening. The cover extends to the container edge, however, an annular gap is formed between the cover and the container edge, can be circulated through the mix in the container by means of the homogenizer.
  • an external circulation line is present, which extends from the lower container bottom into an upper region of the mixing container.
  • this external circulation line opens a supply line, which is for example in communication with a powder container.
  • a jet liquid pump is arranged in the circulation line.
  • powdered raw material via the external circulation line can be mixed into the mix.
  • a device for dispersing and / or homogenizing with a dispersing and / or homogenizing tool in which a pumpable substance or a pumpable mixture is mixed with at least one additive.
  • the pumpable substance can be supplied from a container to the dispersing and / or homogenizing tool.
  • a supply line is provided, which opens into the supply line of the pumpable substance in front of the tool.
  • the supply line and the supply line are arranged concentrically to each other at least in the region of the mouth.
  • At least one pump is arranged at a distance in front of the dispersing and / or homogenizing tool and before the mouth of the supply line whose pump pressure in the flow direction in the region of the mouth of the feed line is less than the suction pressure of the dispersing and / or homogenizing tool.
  • a device for changing or reducing the cross section of this supply line is arranged in the feed line of the pumpable substance from the pump to the mouth of the supply line.
  • the pumpable or flowable material is exposed to a conveying effect by a pump before the access of the additive or additives, so that this substance is supplied to the dispersing and / or homogenizing tool despite its relatively high viscosity without its flow breaks off.
  • the aim of the pump is to ensure that, in spite of its high viscosity, this pumpable substance reaches into the region of the suction effect of the homogenizer, so that the additive is also entrained so that it can be dispersed and / or homogenized together.
  • JP 57150425 Patent Abstracts of Japan
  • the annular gap is very similar to the one mentioned above EP 0 036 067 A2 Lockable via a sliding control ring or controllable so that the homogenizer can promote the mix in a discharge pipe.
  • An admixture of an aggregate is not explained herein and would probably be subject to the same problems as the device according to said EP 0 036 067 A2 ,
  • the technical problem underlying the invention is to provide an improved mixing device for a flowable, especially liquid to pasty product, which allows the mixing of an additive, in particular a powdery additive. Furthermore, the supply of an aggregate should be separated from the external circulation in order not to introduce any deposits in the feed channel into the mix or the product to be circulated.
  • a mixing device comprising a mixing container for receiving the flowable product.
  • a conveyor with a suction side and an output side is arranged to circulate the product at least internally in the mixing container.
  • the conveyor also serves to circulate the product externally via a circulation line.
  • a cover is provided on the output side of the Conveyor forms a Zumischkanal for internal circulation of the product in the mixing vessel. Below the cover opens into the admixing channel at least one admixing device for admixing the additive in the conveyed through the admixing channel, flowable product.
  • the cover is arranged coaxially to the conveyor and has in the center a passage opening which faces the input side of the conveyor.
  • a defined flow channel is formed, which connects the output side of the conveyor with the container interior and then opens into the admixing.
  • the conveyor is eccentrically (not coaxially) aligned with the cover.
  • the channel thus formed may be uniform in shape throughout the circumference of the cover, or may be changed in shape by milled cuts, cutouts, or the like, or may be present only under a partial circumference.
  • a good suction of the aggregate is already guaranteed.
  • Under a flow or admixing channel is already subsumed in the present case a limited only on the top and bottom channel.
  • an admixing channel is not only bounded on the upper and lower sides, but also laterally.
  • a plurality of admixing devices distributed on the circumference of the flow or admixing channel formed by the cover. This is formed here, for example, as the conveyor on the discharge side surrounding annular channel and the upper side bounded by a cover. It should be noted that the cover must be present only where a Zumisch adopted in the Flow channel opens.
  • a radially aligned strip above an opening of a mixing device can be a cover in the sense of the invention.
  • a collecting channel surrounds the conveying device at least over a partial circumference on the circumference and the conveying device conveys the product stream into this annular channel.
  • the collection channel may be formed, for example, as an annular channel.
  • the admixing channel is present, which is connected via a passage opening with the collecting or annular channel, and which is also in communication with the container interior. To change the opening width of the passage opening between the admixing channel and the collecting or annular channel may optionally be present an adjusting device.
  • the admixing device preferably opens into the admixing channel after the passage opening in order to mix the aggregate into the conveyed product.
  • an outlet channel separated from the admixing channel can be present, which connects the collecting or annular channel to the container interior and permits internal circulation or inline circulation of the product.
  • the present invention is based on the idea of providing an admixture of an additive below a cover on the outlet side, in particular radially of the conveyor.
  • this admixing channel formed by the cover and a discharge channel separate therefrom are present in order to supply the aggregate with a defined part of the product stream.
  • a better mixing of the additive is made possible compared to the known mixing devices and at the same time the construction of the device can be simplified.
  • the delivery behavior on the suction side is not directly influenced by the admixtures, so that a controlled, uniform process takes place. It can also take place an external circulation, and still take place admixing of the additive.
  • the admixing device comprises a supply line and at least one shut-off device with which the supply of the additive into the admixing channel can be prevented or at least reduced.
  • the shut-off device can also be configured as an axially movable suction valve.
  • sealing surfaces of the valve can be arranged at a defined distance from a passage opening in the admixing channel.
  • a further exemplary embodiment of the present invention provides that the collecting or annular channel is connected to the admixing channel, the outlet channel and a circulating line and / or an emptying line.
  • this configuration makes it possible that even with an external circulation of the product taking place via the circulation line, a defined proportion of product flow still flows through the admixing channel, and in this case the admixture (s) can be admixed.
  • the circulation line can then branch off from the emptying line, which can be regulated, for example, by means of a corresponding valve or flap arrangement.
  • the passage opening or the opening which connect the collecting or annular channel with the outlet channel of the circulation line and / or the emptying pipe can be changed in their opening width by means of wall elements which can be engaged and disengaged.
  • a regulation of the various product flow components in the admixing channel as well as in the outlet channel or the circulating line or the emptying line is made possible.
  • the various wall elements are movable by one or more drives.
  • a further advantageous embodiment of the present invention provides that the wall elements are part of a single annular wall in which openings are present in order to carry out the adjustment of the passage openings with only one drive.
  • the openings and arranging the openings in the annular wall is possible via a rotation of the annular wall, in particular a closing and partially opening the various passage openings to the individual channels, in particular the admixing channel and the outlet channel.
  • the conveyor in the region of the bottom of the To arrange mixing container.
  • the conveyor coaxially to the vertical axis of the mixing container, whereby a good supply of the product flow to the conveyor is made possible.
  • An exemplary embodiment of the present invention provides that the inlet channel is delimited by a funnel-like channel wall and centrally has an inlet opening, which is in flow communication with the conveyor.
  • This embodiment also allows a good supply of the product to the conveyor as well as a good stripability of product adhering thereto.
  • one or more scrapers may be present.
  • the conveyor itself in an exemplary embodiment as in the prior art, may be a homogenizer or a pump or a combination of homogenizer and pump with each other or with any other agitator or mixer or chopper or diffuser.
  • a homogenizer can be configured as a one or two-prone homogenizer.
  • Such a homogenizer then has at least one ring or ring of individual teeth or lamellae, through which the product is conveyed through.
  • homogenizers include, for example, a stator and a rotor. To avoid unnecessary repetition, reference is made to the structure of a homogenizer, for example, to the prior art mentioned above.
  • Such homogenizers can also be used in a mixing device according to the invention.
  • the adjustment of the product stream proportions can, for example, be carried out so that the entire, exiting from the conveyor product flow is passed through the admixing channel.
  • the volume of the product stream component, which is guided through the admixing channel is adjustable, even if the entire, exiting from the conveyor product flow is passed through the admixing channel.
  • a further alternative consists in that the adjustment of the product stream proportions takes place in such a way that the entire product stream leaving the conveying device is guided into a circulation line or a discharge line. It is then necessary that both the access to the outlet channel and to the admixing channel is shut off.
  • a further alternative may be that the adjustment of the product proportions takes place in such a way that a first part of the product stream emerging from the conveyor is passed through the admixing channel and a second part of the product stream is returned through the outlet channel into the mixing container and only the first part of the product An additive is admixed to the product stream.
  • outlet channel opens into the container interior via an annular gap.
  • a single-axis homogenizer 20 is arranged in the bottom 1 of a mixing container 2 coaxially to the vertical axis of the mixing container 2.
  • the homogenizer 20 here comprises a plurality of fins for conveying a product located in the container interior 40 radially outward.
  • the lamellae (rotor) of the homogenizer 20 are covered by a single ring surrounded by fixed blades 22 (stator), so that a homogenization of the thereby radially conveyed product takes place.
  • two-stranded or Merkränzige arrangements can be selected.
  • Corresponding embodiments are well known to a person skilled in the art and it requires this to avoid unnecessary repetition no further details. Incidentally, reference is made by way of example to the embodiments of a homogenizer to the aforementioned prior art.
  • the homogenizer or the slats 20 are driven by a shaft 21.
  • a cover 3 is arranged, which limits an inlet channel 7 at the front side of the homogenizer 20.
  • the interior of the cover 3, which faces the container interior 40, is of frusto-conical shape here.
  • the opening of the inlet channel 7 is coaxial with the axis of rotation of the homogenizer 20.
  • one or more scrapers 6 are present in the container interior, which cover the inner wall of the cover 3 and thus avoid accumulating attachments thereto.
  • annular channel 12 Radially outside the ring 22 of the homogenizer, an annular channel 12 is present, which surrounds the entire rim 22 of the homogenizer 20. This annular channel 12 is bounded by the cover 3 above.
  • the annular channel 12 is divided by an annular partition wall 12a (annular wall) into an inner annular space and an outer annular space.
  • the partition wall 12a in turn has openings 9 and 14. These openings 9, 14 are changeable or closable via wall elements 11 and 16 in their opening width.
  • the outer annular space of the annular channel 12 is divided by partitions 43 into an admixing channel 8 and an outlet channel 13.
  • the admixing channel 8 runs as a milled recess in the cover 3, but is spatially / physically separated from the outlet channel 13.
  • a mixing line 5a At a distance 4 to the edge of the cover 3 opens into the admixing channel eighth a mixing line 5a, which can be closed via an intake valve 5b.
  • the suction valve 5 b the amount of additive sucked into the admixing channel 8 can be regulated.
  • annular space of the annular channel 12 opens into the container interior via an annular gap 13 in the region of the bottom of the container 2.
  • annular gap 13 is limited in the cross-section shown in Fig. 1 on the bottom by the container bottom 2, on the upper side by the cover third
  • a respective drive 23 or 28 for the wall elements 11 and 16 is present in each case.
  • a fork 29 is rotated by a certain angular amount, in this fork, a pin 30 is inserted, which is connected to the wall element 11 and 16 respectively. By pivoting the fork 29, the pin 30 is translationally moved and thus the wall element 11 moves.
  • FIG. 4 An alternative to the embodiment shown in FIG. 3 is shown in FIG. 4.
  • a single annular wall 15 is present, in which a plurality of openings 10 are formed.
  • this wall element 15 is rotated by means of the mechanism according to FIG.
  • the embodiment shown in Fig. 4 has the advantage that only a single drive is necessary to the product flow rates in the To regulate outlet channel 13 and the admixing channel 8. However, no independent regulation is possible.
  • the openings in the partition wall 15 it is possible to achieve the necessary for proper operation of the mixing device positions.
  • a setting is achieved in which the opening 9 is fully opened in order to promote a maximum proportion of product flow through the admixing channel 8, so that then with an open intake valve 5b, the desired amount of aggregate can be mixed therein.
  • the opening 14 should be closed, so that the entire, conveyed by the homogenizer product stream flows at maximum pressure through the admixing channel 8.
  • Another adjustment may be advantageous in which the opening 9 is partially opened and the opening 14 is still closed. As a result, the pressure flow amount that flows through the admixing channel and thus also the pressure generated thereby can be regulated.
  • both openings 9 and 14 are completely closed.
  • emptying or recirculation via an external circulation charge 41 can then be made possible.
  • both circulation takes place via the annular gap 13 and also admixing in the admixing channel 8.
  • the operation of the present embodiment of the invention is as follows.
  • the opening 14 is completely closed and the opening 9 is completely opened, the flowable product in the container interior 40 is radially discharged through the collar 22 into the annular space 12 by the homogenizer and forced through the opening 9 into the admixing channel 8.
  • the desired amount of additive is mixed into the product stream flowing through the admixing channel 8 by the negative pressure present in the container interior 40 with the intake valve 5b open. Due to the present arrangement of the admixing channel in the immediate vicinity of the homogenizer or the conveying device 20 and the adjustability of the opening 9, the flowable product introduced in the mixing container is added the discharge point in the mixing channel 8 promoted with great turbulence.
  • the turbulence necessary for the desired mixing is set by changing the rotational speed of the homogenizer 20 or even with a more or less large throttling of the flow through the adjustable opening 9.
  • the embodiment of the invention also allows an admixture of an additive in particular of powder in the form that the conveyed conveying air in the aggregate as easily as possible and without foaming of the mixture present in the container from the product mixture can be removed again. This is generally done by venting the product under vacuum in the mixing vessel. In order to cause the air bubbles in the product in the mixing container interior 40 to burst and rise to the product surface, the Einsaugvorgang of the aggregate, and in particular a powder with a low negative pressure takes place.
  • both openings 9 and 14 can discharge the product via the discharge line 41 or to recirculate an external circulation operation in which the product guided through the circulation line 41 is introduced again at the top of the container.
  • the access to the circulation line or the drain 41 is regulated by a flap 42.
  • the circulation line opens into the inner annular space of the annular channel 12.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Accessories For Mixers (AREA)

Claims (26)

  1. Dispositif mélangeur pour un produit fluide, en particulier liquide ou pâteux, auquel doit être ajouté et mélangé un additif, en particulier en poudre, comprenant :
    - un récipient mélangeur (2) pour recevoir le produit fluide,
    - un dispositif de transport (20) disposé dans la zone du fond du récipient mélangeur (2), comprenant un côté aspiration et un côté sortie pour le transport du produit au moins de façon interne dans le récipient mélangeur (2),
    caractérisé par:
    - un couvercle (3) qui forme, côté sortie du dispositif de transport (20), un canal de mélange (8) pour la circulation intérieure du produit dans le récipient mélangeur (2), et
    - au moins un dispositif de mélange supplémentaire (5), servant à ajouter et à mélanger l'additif au produit fluide transporté à travers le canal de mélange, débouche dans le canal de mélange (8), au-dessous du couvercle (3), pour mélanger l'additif au produit transporté à travers le canal de mélange (8).
  2. Dispositif mélangeur selon la revendication 1, caractérisé en ce qu'un canal collecteur (12) entoure le dispositif de transport (20) côté circonférence, au moins sur une circonférence partielle, et le dispositif de transport (20) y transporte, à l'intérieur, le flux de produit.
  3. Dispositif mélangeur selon la revendication 2, caractérisé en ce que le canal de mélange (8) communique avec le canal collecteur (12) et avec l'intérieur (40) du récipient.
  4. Dispositif mélangeur selon la revendication 3, caractérisé en ce qu'il existe un canal de sortie (13) séparé, dans l'espace, du canal de mélange (8), canal de sortie qui relie le canal collecteur (12) à l'intérieur (40) du récipient.
  5. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il existe un dispositif de réglage (11, 16) servant à modifier l'ouverture de passage (9) entre le canal de mélange (8) et le canal collecteur (12).
  6. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de mélange supplémentaire (5) comprend une conduite d'arrivée (5a) et un dispositif de fermeture (5b) avec lequel on peut empêcher ou au moins réduire l'introduction de l'additif dans le canal de mélange (8).
  7. Dispositif mélangeur selon la revendication 6, caractérisé en ce que le dispositif de fermeture est une soupape (5b) avec laquelle on peut régler la quantité d'additif entrant dans le canal de mélange (8).
  8. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un canal d'entrée (7) est configuré en étant défini par un couvercle (3) en forme d'entonnoir, canal d'entrée qui est disposé de façon coaxiale par rapport au dispositif de transport (20).
  9. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une conduite de circulation (50) et / ou une conduite de vidange débouche dans le canal collecteur (12).
  10. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le canal collecteur (12) est configuré comme un canal circulaire.
  11. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le canal collecteur (12) est subdivisé, dans un canal circulaire intérieur et dans un canal circulaire extérieur, par une paroi de séparation (12a) présentant plusieurs ouvertures (9, 14), et le canal circulaire extérieur est subdivisé par des parois de séparation (43) situées dans le canal de mélange (8) et le canal de sortie (13).
  12. Dispositif mélangeur selon la revendication 11, caractérisé en ce que les ouvertures (9, 14) sont modifiables dans leur largeur d'ouverture.
  13. Dispositif mélangeur selon la revendication 12, caractérisé en ce que les ouvertures (9, 14) sont modifiables, dans leur largeur d'ouverture, par des éléments de paroi (11, 16) embrayables et débrayables.
  14. Dispositif mélangeur selon la revendication 13, caractérisé en ce que les éléments de paroi (11, 16) embrayables et débrayables sont rendus mobiles par un ou plusieurs entraînements (23, 28).
  15. Dispositif mélangeur selon la revendication 14, caractérisé en ce qu'il est prévu un seul entraînement pour faire tourner les éléments de paroi (11, 16) autour d'un axe vertical.
  16. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de transport (20) est disposé dans la zone du fond du récipient mélangeur (2).
  17. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de transport (20) est disposé de façon coaxiale par rapport à l'axe vertical du récipient mélangeur (2).
  18. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le côté intérieur du couvercle (3), qui pointe vers l'intérieur (40) du récipient et délimite le canal d'entrée (7), peut être raclé au moyen d'un racleur (6) en rotation à l'intérieur du récipient.
  19. Dispositif mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de transport (20) est un homogénéisateur et / ou une pompe qui débite le produit radialement.
  20. Procédé permettant d'ajouter et de mélanger dans un récipient mélangeur, à un produit fluide, en particulier liquide ou pâteux, un additif, en particulier en poudre, comprenant les étapes consistant :
    - à transporter le produit se trouvant dans le récipient mélangeur (2), dans un canal de mélange (8) qui est délimité, sur le dessus, par un couvercle (3) et, côté pression, est disposé dans un dispositif de transport (20) placé dans le récipient mélangeur (2),
    - à ajouter et à mélanger un additif au flux de produit traversant le canal de mélange (8) et transporté, au-dessous du couvercle (3), par le dispositif de transport (20).
  21. Procédé selon la revendication 20, caractérisé en ce que le produit se trouvant dans le récipient mélangeur (2) est transporté dans le canal de mélange (8) et dans un canal de sortie (13) séparé, dans l'espace, du canal de mélange, les deux canaux communiquant avec l'intérieur (40) du récipient, et l'addition et le mélange de l'additif ne se produisent que dans la première partie du flux de produit traversant le canal de mélange (8) et transportée par le dispositif de transport (20), et une deuxième partie du flux du produit est en circulation, de façon interne, sans mélange supplémentaire.
  22. Procédé selon la revendication 20 ou 21, caractérisé en ce que pendant l'addition et le mélange de l'additif au flux de produit traversant le canal de mélange (8), la partie restante du flux de produit est transportée à travers une conduite de circulation extérieure (41) .
  23. Procédé selon la revendication 21 ou 22, caractérisé en ce que la première et / ou la deuxième partie du flux du produit s'écoule dans la zone du fond du récipient mélangeur (2), le long de la paroi intérieure du récipient mélangeur.
  24. Procédé selon l'une quelconque des revendications 20 à 23, caractérisé en ce que le produit transporté est réintroduit, en partie ou en totalité, à l'intérieur (40) du récipient, via un intervalle circulaire (13).
  25. Procédé selon l'une quelconque des revendications 20 à 24, caractérisé en ce qu'il se produit une dépression à l'intérieur (40) du récipient mélangeur, et l'additif est aspiré dans le canal de mélange (8), au moins partiellement sous l'effet de cette dépression.
  26. Procédé selon l'une quelconque des revendications 20 à 25, caractérisé en ce que le transport du produit est réalisé à travers un homogénéisateur (20).
EP05107516A 2004-08-20 2005-08-16 Appareil et procédé pour mélanger un produit fluide avec en particulier un additif poudreux Active EP1627676B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202005020706U DE202005020706U1 (de) 2004-08-20 2005-08-16 Vorrichtung zum Mischen eines fließfähigen Produkts und eines insbesondere pulverförmigen Zuschlagstoffes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004040446A DE102004040446A1 (de) 2004-08-20 2004-08-20 Vorrichtung und Verfahren zum Mischen eines fließfähigen Produkts und eines insbesondere pulverförmigen Zuschlagstoffes

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EP1627676B1 true EP1627676B1 (fr) 2007-10-03

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CN102015085B (zh) * 2008-01-16 2015-03-04 泰特拉-勒维尔金融控股公司 混合式搅拌机
DE102011102988B4 (de) 2011-05-24 2024-02-01 B-Ton Ip Gmbh Mischer zur Herstellung von Suspensionen und Verfahren
DE102021209275A1 (de) 2021-08-24 2023-03-02 A. Berents GmbH & Co. Kommanditgesellschaft Mischeinrichtung zur Herstellung eines fließfähigen Produkts und Verfahren zum Betrieb einer Mischeinrichtung

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Publication number Priority date Publication date Assignee Title
GB834007A (en) * 1955-05-20 1960-05-04 Henschel & Sohn Ges Mit Beschr Apparatus for producing pulverulent and/or granular material in flowable form
US4030707A (en) * 1975-09-15 1977-06-21 Electronic Data Controls Corporation Blender
JPS5940494B2 (ja) * 1981-03-13 1984-10-01 富士産業株式会社 「かく」拌機におけるホモジナイザ−機構
JPH10309452A (ja) * 1997-03-11 1998-11-24 Shinko Inbesuto:Kk 粉粒体精密処理装置
DE10202084A1 (de) * 2002-01-21 2003-08-07 Alwin Berents Gmbh & Co Kg Misch- und Homogenisiermaschine
DE10320739B3 (de) * 2003-05-09 2004-10-21 Ika - Werke Gmbh & Co. Kg Vorrichtung zum Dispergieren und/oder Homogenisieren

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DE102004040446A1 (de) 2006-03-09
DE502005001601D1 (de) 2007-11-15

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