EP1712271A2 - Apparatus for homogenizing and/or dispersing flowable materials - Google Patents
Apparatus for homogenizing and/or dispersing flowable materials Download PDFInfo
- Publication number
- EP1712271A2 EP1712271A2 EP06006605A EP06006605A EP1712271A2 EP 1712271 A2 EP1712271 A2 EP 1712271A2 EP 06006605 A EP06006605 A EP 06006605A EP 06006605 A EP06006605 A EP 06006605A EP 1712271 A2 EP1712271 A2 EP 1712271A2
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- EP
- European Patent Office
- Prior art keywords
- homogenizing
- dispersing
- feed pump
- dispersing device
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 12
- 230000009969 flowable effect Effects 0.000 title claims description 11
- 239000000126 substance Substances 0.000 claims description 20
- 239000004744 fabric Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 14
- 238000012384 transportation and delivery Methods 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 235000011837 pasties Nutrition 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 2
- 239000011345 viscous material Substances 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000000499 gel Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 239000011346 highly viscous material Substances 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000010746 mayonnaise Nutrition 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000013386 optimize process Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Images
Classifications
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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
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt
-
- 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
- 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
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2113—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2214—Speed during the operation
- B01F35/22141—Speed of feeding of at least one component to be mixed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2214—Speed during the operation
- B01F35/22142—Speed of the mixing device during the operation
- B01F35/221422—Speed of rotation of the mixing axis, stirrer or receptacle during the operation
-
- 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
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
- B01F27/1122—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades anchor-shaped
Definitions
- the invention relates to a device for homogenizing and / or dispersing flowable substances (original substance), in particular in liquid or pasty form.
- homogenizing and / or dispersing devices which are also referred to as homogenizers, are used in particular for the production of viscous or highly viscous products, ointments, pastes, gels, creams, doughs, mayonnaises or the like in the pharmaceutical, cosmetic, chemical and in the food industry used.
- the homogenizing and dispersing device of such a device which is also referred to as a homogenizer, includes for example EP 0 801 974 B1 a coaxial rotor / stator arrangement. This arrangement can be designed in several stages, so that the material template (product master) can go through the homogenizing and / or dispersing device several times with different intensity turbulence.
- Such a homogenizer is often placed on or in the bottom of a container, such as a mixing container, which is filled with a stock (product master) to a desired stock level. Wings may be provided to enhance the pumping action of the product master to the homogenizer.
- the product stream leaving the homogenizing and / or dispersing device can be returned to the container for an internal circulation operation, for example to the vicinity of the container bottom.
- the product stream from the homogenizing and / or dispersing device can be supplied to the container by, for example, an external circulation the upper region of which is preferably returned above the level of the fabric master.
- the homogenizing and / or dispersing device is associated with a pumping device, a common drive for the pumping device and the homogenizing and / or dispersing device is usually present, so that the delivery rate of the pumping device and the delivery rate of the homogenizing and / or dispersing device are immediate are mutually dependent on the shared drive. Furthermore, it has been shown that, for example, in the case of the addition of additives such as liquids, powdered substances or the like by suction, the substances sucked in the region of the homogenizing and / or dispersing device can be conveyed back in the direction of the container for the fabric template. Depending on the process conditions, even sucked powder, for example, can blow back into the container.
- An apparatus for homogenizing and / or dispersing flowable, in particular liquid or pasty substances (fabric master) according to the preamble of claim 1 is made EP 0 801 974 B1 known.
- the invention aims, while overcoming the difficulties described above, to provide a device for homogenizing and / or dispersing flowable substances of the generic type, which has universal controllability and controllability of the product streams before and after the homogenizing and / or dispersing device, in particular for avoidance cavitation phenomena also allowed during the cleaning process. Also, a return of sucked additives to the container with the fabric template should be reliably avoided.
- a variable optimized process control for homogenizing and dispersing especially taking into account shear-sensitive products, such as gels, mascara, etc., should be achieved, in particular, a viscosity-dependent process management should be implemented in an individual form.
- an apparatus for homogenizing and / or dispersing flowable, in particular liquid or pasty substances comprises a container for a fabric master and a motorized homogenizer and / or disperser (homogenizer).
- the fabric feed is conveyed from a container outlet by means of a feed pump to the homogenizing and / or dispersing device, which optionally associated with entry devices for additives in liquid or powdery form. If appropriate, the homogenizing and / or dispersing device can permit a discharge back into the container for the fabric template on the outlet side.
- such a device for homogenizing and / or dispersing is characterized in that the feed pump is driven separately to the homogenizing and / or dispersing, a sensor, preferably a pressure sensor, between the pump outlet and the inlet side of the homogenizing and / or Dispergier nails is arranged, which controls the separate drive of the feed pump variable in accordance with the flow characteristics of the stock and / or corresponding process parameters such that the product flow promotion to the homogenizing and / or dispersing always under pre-pressure.
- a sensor preferably a pressure sensor
- the conveying process by the feed pump and the product processing operation in the homogenizing and / or dispersing independently and universally controllable and controllable, so that these two units for optimization variable to the process conditions for realizing a viscosity-dependent process control, in particular also considering shear-sensitive Tune and control products.
- the conveying process by means of the feed pump and the homogenization and / or dispersion in homogenizing and / or dispersing independently influenced so that the feed pump, for example, taking into account the product type, such as viscous or highly viscous substances, can be controlled so that it is always possible to ensure that the product quantity or amount of substance conveyed by the feed pump in the direction of the homogenizing and / or dispersing device is always greater than the conveying capacity of the homogenizing and / or dispersing device. Thanks to the universal controllability and controllability can thus shorter Artsverweil initiatives realize and the product stream may optionally be exposed to lower shear effects, so that you can ensure a gentle treatment of the fabric template.
- the throughputs of the device for homogenizing and / or dispersing can be optimized and increased.
- cavitation phenomena can be reliably avoided since the product stream is conveyed to the homogenizing and / or dispersing device always under admission pressure.
- a cleaning cycle it is therefore possible to avoid cavitation phenomena and the resulting noise phenomena, since the high delivery rate can be adjusted in a corresponding manner independently of the product flow rate through the homogenizing and / or dispersing device.
- a sensor preferably a pressure sensor, is arranged between the pump outlet and the inlet side of the homogenizing and / or dispersing device, which is used for controlling the feed pump, in particular for controlling the speed of the feed pump.
- an openable and closable product discharge is arranged in the material flow direction upstream of the inlet side of the homogenizing and / or dispersing device.
- shear-sensitive products such as gels, mascara, etc.
- the feed pump is formed by a centrifugal pump, which can be optimized only for the intended conveying purpose in terms of the viscosity characteristics of the processed fabric templates in a corresponding manner.
- a centrifugal pump can also be used to promote viscous and especially highly viscous substances.
- a centrifugal pump as a preferred embodiment of a feed pump allows design due to a substantially shear-free or at least low-shear treatment of the fabric templates to be processed.
- the feed pump preferably has a tangential outlet which is connected to the inlet side of the homogenizing and / or dispersing device. This allows a largely lossless promotion of the material template in this feed pump in the direction of the homogenizing and / or dispersing done.
- the design of the device is such that the return of the product stream from the outlet side of the homogenizing and / or dispersing to the vicinity of the container outlet at the container bottom and / or to the upper region of the container, preferably above the fabric template cover, can take place.
- the return of the product stream from the outlet side of the homogenizing and / or dispersing to the vicinity of the container outlet at the container bottom and / or to the upper region of the container, preferably above the fabric template cover can take place.
- an internal or external return promotion or circulation can be realized in the inventive device without major design effort.
- containers for the fabric template are arranged axially and / or radially conveying stirrer in order to achieve a uniform mixing of the fabric already in the container.
- axially and / or radially imparting stirring element even an exclusive return delivery internally to the vicinity of the container outlet may be sufficient, so that a more process-consuming external recycling can be dispensed with.
- the drive for the homogenizing and / or dispersing device and the drive for the feed pump is controlled by means of a frequency converter. This makes it possible to realize a very sensitive control and regulation of the respective drive motors.
- the device for homogenizing and / or dispersing flowable substances is designed such that the delivery rate of the feed pump and the delivery rate of the homogenizing and / or dispersing device are variable independently of each other.
- a universal change and influencing of the respective delivery rates of the feed pump and the homogenizing and / or dispersing device is achieved even taking into account the product viscosity and / or the energy density.
- the entry means of the additives are activated in liquid or powder form when the sensor designed in particular as a pressure sensor detects negative pressure conditions.
- the sensor designed in particular as a pressure sensor detects negative pressure conditions.
- a sensitive addition control with respect to the amounts of additive can be achieved, and in particular, it is also effectively avoided that added additives via the entry devices directly into the container, since a so-called. Knockback can be effectively suppressed.
- the device according to the invention is designed such that the residence time in the shear zone of the homogenizing and / or dispersing device can be adjusted or varied by the delivery rate (rotational speed) of the feed pump for energy density adjustment.
- the delivery rate rotational speed
- product warmings can be limited when passing through the homogenizing and / or dispersing device, because the product residence time in the homogenizing and / or dispersing device can be adjusted and changed, for example as a function of the viscosity of the product stream.
- the feed pump and the homogenizing and / or dispersing device form a compact structural unit.
- This provides a compact and space-saving design for the device and its units with the further advantage of a maintenance-friendly design.
- an apparatus for homogenizing and / or dispersing flowable, in particular liquid or pasty substances which is also referred to as a substance master, is provided with the reference numeral 1 overall.
- This device 1 comprises a container 2 for the fabric template, which is shown only in section in Figure 1.
- the container 2 also only schematically indicated with 3 stirrer is arranged, which is preferably designed axially and / or radially promotional.
- the container 2 has a container outlet 4 which communicates with a feed pump 5.
- the feed pump 5 is connected to a homogenizing and / or dispersing device 6, which is shown schematically in the drawing and is referred to there as a dispersing device.
- This homogenizing and / or dispersing device 6 is driven by a motor 7, while the feed pump 5 is also driven by an independent further motor 8.
- the feed pump 5 and the homogenizing and / or dispersing device 6 are driven by separate drives.
- the substance flow direction is entered in FIG. 1 with an arrow.
- an entry means 9 for additives As indicated in FIG. 1, this feeding device 9 can be used to add liquid or powdery substances which are added to the product stream which leaves the feed pump 5 before the product stream enters the homogenizing and / or dispersing device 6.
- a product discharge 10 can be provided, via which an emptying can take place.
- a further product discharge 11 is connected to the outlet of the homogenizing and / or dispersing device 6 and also permits emptying via corresponding valve controls.
- an external circulation and / or an internal circulation of the product stream leaving the homogenizing and / or dispersing device 6 can also be taken from FIG.
- An external circulation line 12 leads from the outlet side of the homogenizing and / or dispersing device 6 back to the interior of the container 2, wherein an introduction into the container 2 preferably takes place above the level of the material template in the container 2.
- an internal circulation line 13 is connected on the outlet side to the homogenizing and / or dispersing device 6, which preferably returns the product stream to the vicinity of the container outlet 4 in the radial direction.
- a sensor 14 is further arranged between the feed pump 5 and the homogenizing and / or dispersing device 6, which is preferably a pressure sensor. Alternatively, it may be a volume flow dependent operating sensor or the like if necessary.
- this sensor 14 detects the pressure of the product flow in the material flow direction in front of the inlet side of the homogenizing and / or dispersing device 6. If this sensor 14 detects, for example, negative pressure conditions, the entry device 9 can be activated for pulverulent or liquid substances without the There is a risk that the introduced via the entry device 9 additives strike back into the interior of the container 2.
- the sensor 14 also serves to control the independent drive motors 7 and 8 for the feed pump 5 and the homogenizing and / or dispersing device 6. With the help of this sensor 14, these motors 7 and 8 are also controlled so that they are controlled to each other the flow properties of the material template and the product flow, the product flow promotion to the homogenizing and / or dispersing device 6 always takes place under pre-pressure. As a result, cavitation phenomena can be effectively avoided.
- the feed pump 5, shown schematically in FIG. 1 is designed as a centrifugal pump, which may for example have a tangential outlet which is in communicating connection with the inlet side of the homogenizing and / or dispersing device 6.
- a centrifugal pump as a feed pump 5 allows a low-shear promotion of the product flow from the container outlet 4. Therefore, such a centrifugal pump is particularly advantageous for shear-sensitive substances.
- the feed pump 5 is driven in the form that it allows a product discharge.
- Essential in the device 1 according to the invention for homogenizing and / or dispersing flowable substances is the fact that the feed pump 5 and the homogenizing and / or dispersing device 6 are driven by separate drive motors 7 and 8, so that these two organs are independently operable , With the help of the sensor 14 but it is ensured that in particular the feed pump 5 is always operated so that the product flow to the inlet side of the homogenizing and / or dispersing device 6 is always conveyed under a certain variable form.
- the device 1 of the invention allows for homogenizing and / or dispersing flowable substances a universally controllable product flow line within the system optionally in conjunction with an external and / or an internal circulation.
- the feed pump 5 and the homogenizing and / or dispersing 6 form a compact unit, so that you get a space-saving design of the device 1 total, which is designed to be easy to maintain.
- the sensor 14 operatively cooperate with the motors 7 and 8 associated frequency converters such that not only the individual drive parameters of feed pump 5 and homogenizing and / or dispersing 6 are variable and independently controllable, but that under ensures all variable operating conditions that the feed pump 5 provides a pressurized product stream at the inlet side of the homogenizing and / or dispersing device 6. Also, a mutual vote of the delivery rate of the feed pump 5 and the residence time in the shear zone of the homogenizing and / or dispersing device 6 is possible, so that you can make an energy density adjustment to optimize the process control.
Abstract
Description
Die Erfindung befasst sich mit einer Vorrichtung zum Homogenisieren und/oder Dispergieren fließfähiger Stoffe (Stoffvorlage), insbesondere in flüssiger oder pastöser Form.The invention relates to a device for homogenizing and / or dispersing flowable substances (original substance), in particular in liquid or pasty form.
Derartige Homogenisier- und/oder Dispergiervorrichtungen, welche auch als Homogenisatoren bezeichnet werden, werden insbesondere zur Herstellung von viskosen oder auch hochviskosen Produkten, Salben, Pasten, Gele, Cremes, Teige, Mayonnaisen oder dergleichen in der pharmazeutischen, kosmetischen, chemischen und in der Lebensmittelindustrie eingesetzt.Such homogenizing and / or dispersing devices, which are also referred to as homogenizers, are used in particular for the production of viscous or highly viscous products, ointments, pastes, gels, creams, doughs, mayonnaises or the like in the pharmaceutical, cosmetic, chemical and in the food industry used.
Unterschiedliche Bauarten von derartigen Homogenisatoren sind beispielsweise aus
Bei allen diesen bekannten Homogenisier- und/oder Dispergiervorrichtungen besteht die Gefahr einer Kavitationserscheinung, wenn die Förderleistung der Homogenisier- und/oder Dispergiervorrichtung größer als die Produktstrommenge ist, die vom Behälterauslaß zu der Homogenisier- und/oder Dispergiereinrichtung nachströmt. Insbesondere kann es auch zu Kavitationserscheinungen kommen, wenn bei einem Reinigungszyklus beispielsweise eine Reinigungsflüssigkeit, wie Wasser, vorzugsweise erwärmt, durchgeleitet wird, da hierbei schnell der Dampfdruck der Reinigungsflüssigkeit erreicht wird. Selbst wenn der Homogenisier- und/oder Dispergiereinrichtung eine Pumpeinrichtung zugeordnet ist, so ist üblicherweise ein gemeinsamer Antrieb für die Pumpeinrichtung und die Homogenisier- und/oder Dispergiereinrichtung vorhanden, so daß die Förderleistung der Pumpeinrichtung und die Förderleistung der Homogenisier- und/oder Dispergiereinrichtung unmittelbar von dem gemeinsam vorhandenen Antrieb wechselseitig abhängig sind. Ferner hat es sich gezeigt, daß beispielsweise im Falle der Zugabe von Additiven, wie Flüssigkeiten, pulverförmigen Substanzen oder dergleichen mittels Ansaugung die im Bereich der Homogenisier- und/oder Dispergiervorrichtung eingesaugten Stoffe in Richtung des Behälters für die Stoffvorlage zurückgefördert werden können. In Abhängigkeit von den Prozeßbedingungen kann sogar beispielsweise eingesaugtes Pulver in den Behälter zurückschlagen.In all these known homogenizing and / or dispersing devices there is the danger of a cavitation phenomenon if the delivery rate of the homogenizing and / or dispersing device is greater than the product flow rate, which flows from the container outlet to the homogenizing and / or dispersing device. In particular, cavitation phenomena may also occur if, for example, a cleaning liquid such as water, preferably heated, is passed through during a cleaning cycle, since in this case the vapor pressure of the cleaning liquid is rapidly reached. Even if the homogenizing and / or dispersing device is associated with a pumping device, a common drive for the pumping device and the homogenizing and / or dispersing device is usually present, so that the delivery rate of the pumping device and the delivery rate of the homogenizing and / or dispersing device are immediate are mutually dependent on the shared drive. Furthermore, it has been shown that, for example, in the case of the addition of additives such as liquids, powdered substances or the like by suction, the substances sucked in the region of the homogenizing and / or dispersing device can be conveyed back in the direction of the container for the fabric template. Depending on the process conditions, even sucked powder, for example, can blow back into the container.
Eine Vorrichtung zum Homogenisieren und/oder Dispergieren fließfähiger, insbesondere flüssiger oder pastöser Stoffe (Stoffvorlage) nach dem Oberbegriff des Patentanspruchs 1 ist aus
Die Erfindung zielt darauf ab, unter Überwindung der zuvor geschilderten Schwierigkeiten eine Vorrichtung zum Homogenisieren und/oder Dispergieren fließfähiger Stoffe der gattungsgemäßen Art bereitzustellen, welche eine universelle Steuer- und Regelbarkeit der Produktströme vor und nach der Homogenisier- und/oder Dispergiereinrichtung insbesondere zur Vermeidung von Kavitationserscheinungen auch beim Reinigungsvorgang gestattet. Auch soll zuverlässig ein Rückschlagen von eingesaugten Zusatzstoffen zum Behälter mit der Stoffvorlage vermieden werden. Insbesondere soll eine variable optimierte Prozessführung für das Homogenisieren und Dispergieren, insbesondere auch unter Berücksichtigung von schersensitiven Produkten, wie Gele, Mascara, etc. erreicht werden, wobei insbesondere eine viskositätsabhängige Prozessführung in individueller Form verwirklicht werden soll.The invention aims, while overcoming the difficulties described above, to provide a device for homogenizing and / or dispersing flowable substances of the generic type, which has universal controllability and controllability of the product streams before and after the homogenizing and / or dispersing device, in particular for avoidance cavitation phenomena also allowed during the cleaning process. Also, a return of sucked additives to the container with the fabric template should be reliably avoided. In particular, a variable optimized process control for homogenizing and dispersing, especially taking into account shear-sensitive products, such as gels, mascara, etc., should be achieved, in particular, a viscosity-dependent process management should be implemented in an individual form.
Nach der Erfindung wird hierzu eine Vorrichtung zum Homogenisieren und/oder Dispergieren fließfähiger, insbesondere flüssiger oder pastöser Stoffe (Stoffvorlage) bereitgestellt, welche einen Behälter für eine Stoffvorlage und eine motorbetriebene Homogenisier- und/oder Dispergiereinrichtung (Homogenisator) umfaßt. Bei dieser Vorrichtung wird die Stoffvorlage von einem Behälterauslaß mittels einer Förderpumpe zur Homogenisier- und/oder Dispergiereinrichtung gefördert, welcher gegebenenfalls Eintragseinrichtungen für Additive in flüssiger oder pulvriger Form zugeordnet sind. Die Homogenisier- und/oder Dispergiereinrichtung kann gegebenenfalls auslaßseitig eine Rückförderung in den Behälter für die Stoffvorlage gestatten. Nach der Erfindung zeichnet sich eine solche Vorrichtung zum Homogenisieren und/oder Dispergieren dadurch aus, daß die Förderpumpe gesondert zur Homogenisier- und/oder Dispergiereinrichtung angetrieben ist, ein Sensor, vorzugsweise ein Drucksensor, zwischen dem Pumpenauslaß und der Einlaßseite der Homogenisier- und/oder Dispergiereinrichtung angeordnet ist, welcher den gesonderten Antrieb der Förderpumpe variabel nach Maßgabe der Fließeigenschaften der Stoffvorlage und/oder entsprechender Prozeßparameter derart steuert, daß die Produktstromförderung zur Homogenisier- und/oder Dispergiereinrichtung immer unter Vordruck erfolgt.According to the invention for this purpose, an apparatus for homogenizing and / or dispersing flowable, in particular liquid or pasty substances (fabric template) is provided which comprises a container for a fabric master and a motorized homogenizer and / or disperser (homogenizer). In this apparatus, the fabric feed is conveyed from a container outlet by means of a feed pump to the homogenizing and / or dispersing device, which optionally associated with entry devices for additives in liquid or powdery form. If appropriate, the homogenizing and / or dispersing device can permit a discharge back into the container for the fabric template on the outlet side. According to the invention, such a device for homogenizing and / or dispersing is characterized in that the feed pump is driven separately to the homogenizing and / or dispersing, a sensor, preferably a pressure sensor, between the pump outlet and the inlet side of the homogenizing and / or Dispergiereinrichtung is arranged, which controls the separate drive of the feed pump variable in accordance with the flow characteristics of the stock and / or corresponding process parameters such that the product flow promotion to the homogenizing and / or dispersing always under pre-pressure.
Bei der erfindungsgemäßen Vorrichtung ist der Fördervorgang, durch die Förderpumpe und der Produktbearbeitungsvorgang in der Homogenisier- und/oder Dispergiereinrichtung unabhängig und universell steuer- und regelbar, so daß man diese beiden Aggregate zur Optimierung variabel auf die Prozessbedingungen auch zur Verwirklichung einer viskositätsabhängigen Prozessführung, insbesondere auch unter Berücksichtung von schersensitiven Produkten abstimmen und steuern kann. Bei der Erfindung ist somit der Fördervorgang mittels der Förderpumpe und der Homogenisier- und/oder Dispergiervorgang in Homogenisier- und/oder Dispergiervorrichtung unabhängig beeinflussbar, so daß die Förderpumpe beispielsweise unter Berücksichtigung der Produkteigenart, wie viskose oder hochviskose Stoffe, geregelt werden kann, so daß man immer sicherstellen kann, daß die von der Förderpumpe in Richtung zu der Homogenisier- und/oder Dispergiereinrichtung geförderte Produktmenge oder Stoffmenge immer größer als die Förderleistung der Homogenisier- und/oder Dispergiereinrichtung ist. Dank der universellen Steuer- und Regelbarkeit lassen sich somit kürzere Produktverweilzeiten realisieren und der Produktstrom kann gegebenenfalls geringeren Scherwirkungen ausgesetzt werden, so daß man eine schonende Behandlung der Stoffvorlage sicherstellen kann. Auch lassen sich in Abhängigkeit von der Produkteigenart die Durchsätze der Vorrichtung zum Homogenisieren und/oder Dispergieren optimieren und steigern. Hierdurch lassen sich zuverlässig Kavitationserscheinungen vermeiden, da die Förderung des Produktstromes zur Homogenisier- und/oder Dispergiereinrichtung immer unter Vordruck erfolgt. Selbst bei einem Reinigungszyklus lassen sich somit Kavitationserscheinungen und hierdurch bedingte Geräuscherscheinungen vermeiden, da sich die hohe Förderleistung in entsprechender Weise unabhängig von dem Produktstromdurchsatz durch die Homogenisier- und/oder Dispergiervorrichtung einstellen lässt. Um dies zu erreichen, ist ein Sensor, vorzugsweise ein Drucksensor, zwischen dem Pumpenauslaß und der Einlaßseite der Homogenisier- und/oder Dispergiervorrichtung angeordnet, welcher zur Steuerung der Förderpumpe, insbesondere zur Drehzahlsteuerung der Förderpumpe, genutzt wird.In the apparatus according to the invention, the conveying process, by the feed pump and the product processing operation in the homogenizing and / or dispersing independently and universally controllable and controllable, so that these two units for optimization variable to the process conditions for realizing a viscosity-dependent process control, in particular also considering shear-sensitive Tune and control products. In the invention, therefore, the conveying process by means of the feed pump and the homogenization and / or dispersion in homogenizing and / or dispersing independently influenced, so that the feed pump, for example, taking into account the product type, such as viscous or highly viscous substances, can be controlled so that it is always possible to ensure that the product quantity or amount of substance conveyed by the feed pump in the direction of the homogenizing and / or dispersing device is always greater than the conveying capacity of the homogenizing and / or dispersing device. Thanks to the universal controllability and controllability can thus shorter Produktverweilzeiten realize and the product stream may optionally be exposed to lower shear effects, so that you can ensure a gentle treatment of the fabric template. Also, depending on the type of product, the throughputs of the device for homogenizing and / or dispersing can be optimized and increased. As a result, cavitation phenomena can be reliably avoided since the product stream is conveyed to the homogenizing and / or dispersing device always under admission pressure. Even in the case of a cleaning cycle, it is therefore possible to avoid cavitation phenomena and the resulting noise phenomena, since the high delivery rate can be adjusted in a corresponding manner independently of the product flow rate through the homogenizing and / or dispersing device. In order to achieve this, a sensor, preferably a pressure sensor, is arranged between the pump outlet and the inlet side of the homogenizing and / or dispersing device, which is used for controlling the feed pump, in particular for controlling the speed of the feed pump.
Vorzugsweise ist eine öffen- und schließbare Produktableitung in Stoffflussrichtung vor der Einlaßseite der Homogenisier- und/oder Dispergiervorrichtung angeordnet. Hierdurch kann insbesondere bei schersensitiven Produkten, wie Gele, Mascara, etc. erreicht werden, daß nach einer ausreichenden Homogenisierung und/oder Dispergierung vor der zugeordneten Homogenisier- und/oder Dispergiereinrichtung eine Produktableitung (Entleerung) unter Nutzung der Förderpumpe erfolgen kann, ohne daß das Produkt nochmals durch die Homogenisier- und/oder Dispergiereinrichtung geht.Preferably, an openable and closable product discharge is arranged in the material flow direction upstream of the inlet side of the homogenizing and / or dispersing device. As a result, in particular with shear-sensitive products, such as gels, mascara, etc., it can be achieved that after sufficient homogenization and / or dispersion in front of the assigned homogenizing and / or dispersing device a product discharge (emptying) can be done using the feed pump without the product goes through the homogenizing and / or dispersing again.
Vorzugsweise wird die Förderpumpe von einer Kreiselpumpe gebildet, welche sich ausschließlich für den angestrebten Förderzweck auch hinsichtlich der Viskositätseigenschaften der zu verarbeitenden Stoffvorlagen in entsprechender Weise optimieren läßt. Eine solche Kreiselpumpe kann auch zur Förderung von viskosen und insbesondere auch hochviskosen Stoffen eingesetzt werden. Eine Kreiselpumpe als bevorzugte Ausführungsform einer Förderpumpe gestattet bauartbedingt eine im wesentlichen scherfreie oder zumindest scherarme Behandlung der zu verarbeitenden Stoffvorlagen.Preferably, the feed pump is formed by a centrifugal pump, which can be optimized only for the intended conveying purpose in terms of the viscosity characteristics of the processed fabric templates in a corresponding manner. Such a centrifugal pump can also be used to promote viscous and especially highly viscous substances. A centrifugal pump as a preferred embodiment of a feed pump allows design due to a substantially shear-free or at least low-shear treatment of the fabric templates to be processed.
Ferner hat die Förderpumpe vorzugsweise einen tangentialen Auslass, welcher mit der Einlaßseite der Homogenisier- und/oder Dispergiereinrichtung verbunden ist. Hierdurch kann eine weitgehend verlustfreie Förderung der Stoffvorlage in dieser Förderpumpe in Richtung zu der Homogenisier- und/oder Dispergiereinrichtung erfolgen.Further, the feed pump preferably has a tangential outlet which is connected to the inlet side of the homogenizing and / or dispersing device. This allows a largely lossless promotion of the material template in this feed pump in the direction of the homogenizing and / or dispersing done.
Vorzugsweise ist die Auslegung der Vorrichtung derart getroffen, daß die Rückförderung des Produktstroms von der Auslaßseite der Homogenisier- und/oder Dispergiereinrichtung zu der Nähe des Behälterauslasses am Behälterboden und/oder zum oberen Bereich des Behälters, vorzugsweise oberhalb des Stoffvorlagendeckels, erfolgen kann. Auf diese Weise lassen sich bei der erfindungsgemäßen Vorrichtung ohne größeren konstruktiven Aufwand eine interne oder externe Rückförderung oder Umwälzung verwirklichen.Preferably, the design of the device is such that the return of the product stream from the outlet side of the homogenizing and / or dispersing to the vicinity of the container outlet at the container bottom and / or to the upper region of the container, preferably above the fabric template cover, can take place. In this way, an internal or external return promotion or circulation can be realized in the inventive device without major design effort.
Vorzugsweise sind Behälter für die Stoffvorlage ein axial- und/oder radialförderndes Rührorgan angeordnet, um eine gleichmäßige Durchmischung der Stoffvorlage bereits schon im Behälter zu erzielen. In Abhängigkeit von der Wahl des axial- und/oder radialfördernden Rührorgans kann sogar eine ausschließliche Rückförderung intern zur Nähe des Behälterauslasses gegebenenfalls ausreichen, so daß eine prozessaufwendigere externe Rückführung entfallen kann.Preferably, containers for the fabric template are arranged axially and / or radially conveying stirrer in order to achieve a uniform mixing of the fabric already in the container. Depending on the choice of the axially and / or radially imparting stirring element, even an exclusive return delivery internally to the vicinity of the container outlet may be sufficient, so that a more process-consuming external recycling can be dispensed with.
Vorzugsweise ist der Antrieb für die Homogenisier- und/oder Dispergiereinrichtung und der Antrieb für die Förderpumpe mittels eines Frequenzumrichters gesteuert. Hierdurch lässt sich eine sehr feinfühlige Steuerung und Regelung der jeweiligen Antriebsmotoren verwirklichen.Preferably, the drive for the homogenizing and / or dispersing device and the drive for the feed pump is controlled by means of a frequency converter. This makes it possible to realize a very sensitive control and regulation of the respective drive motors.
Insbesondere ist nach der Erfindung die Vorrichtung zum Homogenisieren und/oder Dispergieren fließfähiger Stoffe derart ausgelegt, daß die Förderleistung der Förderpumpe und die Förderleistung der Homogenisier- und/oder Dispergiereinrichtung unabhängig von einander variierbar sind. Hierdurch wird eine universelle Änderung und Beeinflussung der jeweiligen Förderleistungen der Förderpumpe und der Homogenisier- und/oder Dispergiervorrichtung auch unter Berücksichtigung der Produktviskosität und/oder der Energiedichte erreicht.In particular, according to the invention, the device for homogenizing and / or dispersing flowable substances is designed such that the delivery rate of the feed pump and the delivery rate of the homogenizing and / or dispersing device are variable independently of each other. As a result, a universal change and influencing of the respective delivery rates of the feed pump and the homogenizing and / or dispersing device is achieved even taking into account the product viscosity and / or the energy density.
Vorzugsweise werden die Eintragseinrichtungen der Additive in flüssiger oder pulvriger Form aktiviert, wenn der insbesondere als Drucksensor ausgelegte Sensor Unterdruckbedingungen erfasst. Hierdurch kann eine feinfühlige Zugabesteuerung bezüglich der Additivmengen erreicht werden, und insbesondere wird auch wirksam vermieden, daß über die Eintragseinrichtungen zugegebene Additive direkt in den Behälter gelangen, da ein sog. Rückschlagen wirksam unterdrückt werden kann.Preferably, the entry means of the additives are activated in liquid or powder form when the sensor designed in particular as a pressure sensor detects negative pressure conditions. In this way, a sensitive addition control with respect to the amounts of additive can be achieved, and in particular, it is also effectively avoided that added additives via the entry devices directly into the container, since a so-called. Knockback can be effectively suppressed.
Insbesondere ist die Vorrichtung nach der Erfindung derart ausgelegt, daß die Verweilzeit in der Scherzone der Homogenisier- und/oder Dispergiervorrichtung durch die Förderleistung (Drehzahl) der Förderpumpe zur Energiedichtenabstimmung eingestellt bzw. variiert werden kann. Hierdurch lassen sich auch Produkterwärmungen beim Durchgang durch die Homogenisierund/oder Dispergiervorrichtung eingrenzen, weil die Produktverweilzeit in der Homogenisier- und/oder Dispergiereinrichtung, beispielsweise in Abhängigkeit von der Viskosität des Produktstroms abgestimmt und geändert werden kann.In particular, the device according to the invention is designed such that the residence time in the shear zone of the homogenizing and / or dispersing device can be adjusted or varied by the delivery rate (rotational speed) of the feed pump for energy density adjustment. As a result, product warmings can be limited when passing through the homogenizing and / or dispersing device, because the product residence time in the homogenizing and / or dispersing device can be adjusted and changed, for example as a function of the viscosity of the product stream.
Insbesondere kann nach der Erfindung die Förderpumpe und die Homogenisier- und/oder Dispergiereinrichtung eine kompakte Baueinheit bilden. Hierdurch erhält man eine gedrängte und platzsparende Bauweise für die Vorrichtung und ihrer Aggregate mit dem weiteren Vorteil einer wartungsfreundlichen Auslegung.In particular, according to the invention, the feed pump and the homogenizing and / or dispersing device form a compact structural unit. This provides a compact and space-saving design for the device and its units with the further advantage of a maintenance-friendly design.
Die Erfindung wird nachstehend anhand einer bevorzugten Ausführungsform unter Bezugnahme auf die beigefügte Zeichnung näher erläutert. Die einzige Figur 1 der Zeichnung zeigt:
- eine schematische Ausschnittsansicht zur Verdeutlichung einer Auslegungsform der Vorrichtung mit Behälterauslaß, Förderpumpe und Homogenisier- und/oder Dispergiereinrichtung sowie zugeordnete Additiv-Zugabeinrichtungen für die jeweiligen Prozessführungen.
- a schematic sectional view to illustrate a design form of the device with container outlet, feed pump and homogenizing and / or dispersing and associated additive-adding devices for the respective process guides.
In Figur 1 ist eine Vorrichtung zum Homogenisieren und/oder Dispergieren fließfähiger, insbesondere flüssiger oder pastöser Stoffe, was auch als Stoffvorlage bezeichnet wird, insgesamt mit dem Bezugszeichen 1 versehen. Diese Vorrichtung 1 umfaßt einen Behälter 2 für die Stoffvorlage, welcher in Figur 1 nur ausschnitthaft dargestellt ist. In dem Behälter 2 ist ebenfalls nur schematisch ein mit 3 angedeutetes Rührorgan angeordnet, welches vorzugsweise axial und/oder radial fördernd ausgelegt ist. Der Behälter 2 hat einen Behälterauslaß 4, welcher in kommunizierender Verbindung mit einer Förderpumpe 5 steht. Auslaßseitig ist die Förderpumpe 5 mit einer Homogenisier- und/oder Dispergiereinrichtung 6 verbunden, welche in der Zeichnung schematisch dargestellt ist und dort als Dispergiervorrichtung bezeichnet ist. Diese Homogenisier- und/oder, Dispergiereinrichtung 6 wird von einem Motor 7 angetrieben, während die Förderpumpe 5 ebenfalls von einem unabhängigen weiteren Motor 8 angetrieben wird. Somit sind die Förderpumpe 5 und die Homogenisier- und /oder Dispergiereinrichtung 6 von gesonderten Antrieben angetrieben.In FIG. 1, an apparatus for homogenizing and / or dispersing flowable, in particular liquid or pasty substances, which is also referred to as a substance master, is provided with the reference numeral 1 overall. This device 1 comprises a container 2 for the fabric template, which is shown only in section in Figure 1. In the container 2 also only schematically indicated with 3 stirrer is arranged, which is preferably designed axially and / or radially promotional. The container 2 has a container outlet 4 which communicates with a
Mit einem Pfeil ist in Figur 1 die Stoffflussrichtung eingetragen. Zwischen dem Auslaß der Förderpumpe 5 und dem Einlass der Homogenisier- und/oder Dispergiereinrichtung 6 ist nach der schematischen Darstellung gemäß Figur 1 eine Eintragseinrichtung 9 für Additive angeordnet. Wie in Figur 1 eingetragen ist, kann diese Eintragseinrichtung 9 zum Zugeben von flüssigen oder pulvrigen Stoffen genutzt werden, die dem Produktstrom beigemischt werden, welcher die Förderpumpe 5 verläßt, bevor der Produktstrom in die Homogenisier- und/oder Dispergiereinrichtung 6 eintritt. Ebenfalls in Stoffflussrichtung vor der Einlassseite der Homogenisier- und/oder Dispergiereinrichtung 6 kann eine Produktableitung 10 vorgesehen sein, über welche eine Entleerung erfolgen kann. Eine weitere Produktableitung 11 ist mit dem Auslass der Homogenisier- und/oder Dispergiereinrichtung 6 verbunden und ermöglicht über entsprechende Ventilsteuerungen ebenfalls eine Entleerung.The substance flow direction is entered in FIG. 1 with an arrow. Between the outlet of the
Ferner kann aus Figur 1 auch eine externe Zirkulation und/oder eine interne Zirkulation des die Homogenisier- und/oder Dispergiereinrichtung 6 verlassenden Produktstroms entnommen werden. Eine externe Zirkulationsleitung 12 führt von der Auslassseite der Homogenisier- und/oder Dispergiereinrichtung 6 zu dem Innenraum des Behälters 2 zurück, wobei eine Einleitung in den Behälter 2 vorzugsweise oberhalb des Pegels der Stoffvorlage in dem Behälter 2 erfolgt. Alternativ oder in Kombination mit der externen Zirkulation ist auslassseitig mit der Homogenisier- und/oder Dispergiereinrichtung 6 eine interne Zirkulationsleitung 13 verbunden, welche den Produktstrom zu der Nähe des Behälterauslasses 4 vorzugsweise in radialer Richtung zurückleitet.Furthermore, an external circulation and / or an internal circulation of the product stream leaving the homogenizing and / or dispersing device 6 can also be taken from FIG. An
In Stoffflussrichtung ist ferner zwischen der Förderpumpe 5 und der Homogenisier- und/oder Dispergiereinrichtung 6 ein Sensor 14 angeordnet, bei dem es sich vorzugsweise um einen Drucksensor handelt. Alternativ kann es sich um einen Volumenstrom abhängig arbeitenden Sensor oder dergleichen gegebenenfalls handeln. Dieser Sensor 14 erfaßt im Falle eines Drucksensors den Druck des Produktstroms in Stoffflussrichtung vor der Einlasseite der Homogensier- und/oder Dispergiereinrichtung 6. Wenn dieser Sensor 14 beispielsweise Unterdruckbedingungen erfasst, so kann die Eintragseinrichtung 9 für pulverförmige oder flüssige Stoffe aktiviert werden, ohne daß die Gefahr besteht, daß die über die Eintragseinrichtung 9 eingeleiteten Additive in das Innere des Behälters 2 zurückschlagen. Zum anderen dient der Sensor 14 auch zur Steuerung der unabhängigen Antriebsmotoren 7 und 8 für die Förderpumpe 5 und die Homogenisier- und/oder Dispergiereinrichtung 6. Mit Hilfe dieses Sensors 14 werden diese Motoren 7 und 8 auch so abgestimmt auf einander gesteuert, dass nach Maßgabe der Fliesseigenschaften der Stoffvorlage und des Produktstroms die Produktstromförderung zur Homogenisier- und/oder Dispergiereinrichtung 6 immer unter Vordruck erfolgt. Hierdurch lassen sich Kavitationserscheinungen wirksam vermeiden.In the material flow direction, a
Gemäß einer bevorzugten Ausführungsform ist die schematisch in Figur 1 eingetragene Förderpumpe 5 als eine Kreiselpumpe ausgelegt, welche beispielsweise einen tangentialen Auslass haben kann, welcher mit der Einlaßseite der Homogenisier- und/oder Dispergiereinrichtung 6 in kommunizierenden Verbindung steht. Eine solche Kreiselpumpe als Förderpumpe 5 ermöglicht eine scherarme Förderung des Produktstroms vom Behälterauslaß 4. Daher ist eine solche Kreiselpumpe insbesondere für schersensitive Stoffe von Vorteil. Insbesondere wenn die in Figur 1 dargestellte Vorrichtung 1 mit interner Zirkulation betrieben wird, kann es von Vorteil sein, wenn der Produktstrom nicht mehrmals die Homogenisier- und/oder Dispergiereinrichtung 6 durchläuft, sondern dass eine Produktableitung über die Produktableitung 10 in Figur 1 vorgenommen wird. In diesem Fall wird dann die Förderpumpe 5 in der Form angetrieben, daß sie eine Produktentleerung gestattet.According to a preferred embodiment, the
Wesentlich bei der erfindungsgemäßen Vorrichtung 1 zum Homogenisieren und/oder Dispergieren fließfähiger Stoffe ist die Tatsache, daß die Förderpumpe 5 und die Homogenisier- und/oder Dispergiereinrichtung 6 von gesonderten Antriebsmotoren 7 und 8 angetrieben werden, so daß diese beiden Organe unabhängig von einander betreibbar sind. Mit Hilfe des Sensors 14 wird aber sichergestellt, daß insbesondere die Förderpumpe 5 immer derart betrieben wird, daß der Produktstrom zur Einlaßseite der Homogenisier- und/oder Dispergiereinrichtung 6 immer unter einem gewissen variablen Vordruck gefördert wird. Auf diese Weise gestattet die erfindungsgemäße Vorrichtung 1 zum Homogenisieren und/oder Dispergieren fließfähiger Stoffe eine universell steuerbare Produktstromleitung innerhalb des Systems gegebenenfalls in Verbindung mit einer externen und/oder einer internen Zirkulation.Essential in the device 1 according to the invention for homogenizing and / or dispersing flowable substances is the fact that the
Obgleich in Figur 1 nicht näher dargestellt ist, können die Förderpumpe 5 und die Homogenisier- und/oder Dispergiereinrichtung 6 eine kompakte Baueinheit bilden, so daß man eine platzsparende Auslegung der Vorrichtung 1 insgesamt erhält, welche wartungsfreundlich gestaltet ist.Although not shown in detail in Figure 1, the
Über eine nicht näher dargestellte Steuereinrichtung kann der Sensor 14 wirkungsmäßig mit den Motoren 7 und 8 zugeordneten Frequenzumrichtern derart zusammenarbeiten, daß nicht nur die einzelnen Antriebsparameter von Förderpumpe 5 und Homogenisier- und/oder Dispergiereinrichtung 6 variabel und unabhängig voneinander steuerbar sind, sondern daß auch unter allen variablen Betriebsbedingungen sichergestellt ist, daß die Förderpumpe 5 einen unter Vordruck stehenden Produktstrom an der Einlaßseite der Homogenisier- und/oder Dispergiereinrichtung 6 bereitstellt. Auch ist eine wechselseitige Abstimmung der Förderleistung der Förderpumpe 5 und der Verweilzeit in der Scherzone der Homogenisier- und/oder Dispergiereinrichtung 6 möglich, so daß man zur Optimierung der Prozessführung eine Energiedichtenabstimmung vornehmen kann.About a control device, not shown, the
Obgleich die Erfindung voranstehend anhand einer bevorzugten Ausführungsform unter Bezugnahme auf die Zeichnung näher erläutert worden ist, ist die Erfindung natürlich nicht auf die dort beschriebenen und gezeigten Einzelheiten beschränkt, sondern es sind zahlreiche Abänderungen und Modifikationen möglich, die der Fachmann im Bedarfsfall treffen wird, ohne den Erfindungsgedanken zu verlassen.Although the invention has been described above with reference to a preferred embodiment with reference to the drawings, the invention is of course not limited to the details described and shown therein, but there are numerous modifications and modifications are possible, which the skilled artisan will meet, if necessary, without to leave the inventive idea.
- 11
- Vorrichtung zum Homogenisieren und/oder Dispergieren fliessfähiger Stoffe insgesamtApparatus for homogenizing and / or dispersing flowable substances in total
- 22
- Behältercontainer
- 33
- Rührorganstirrer
- 44
- Behälterauslaßcontainer outlet
- 55
- Förderpumpefeed pump
- 66
- Homogenisier- und/oder DispergiereinrichtungHomogenizing and / or dispersing device
- 77
- Motor für Homogenisier- und/oder Dispergiereinrichtung 6Motor for homogenizing and / or dispersing device 6
- 88th
-
Motor für Förderpumpe 5Motor for
feed pump 5 - 99
- Eintragseinrichtung für AdditiveEntry device for additives
- 1010
- Produktableitung vor Einlaß von Einrichtung 6Product discharge before inlet of device 6
- 1111
- Produktableitung an der Auslaßseite von 6Product discharge at the outlet side of 6
- 1212
- Externe ZirkulationsleitungExternal circulation pipe
- 1313
- Interne ZirkulationsleitungInternal circulation line
- 1414
- Sensorsensor
Claims (12)
dadurch gekennzeichnet, daß die Förderpumpe (5) gesondert zur Homogenisier- und/oder Dispergiereinrichtung (6) angetrieben ist, ein Sensor (14), vorzugsweise ein Drucksensor, zwischen dem Pumpenauslaß und der Einlaßseite der Homogenisier- und/oder Dispergiereinrichtung (6) angeordnet ist, welcher den gesonderten Antrieb (8) der Förderpumpe (5) variabel nach Maßgabe der Fließeigenschaften der Stoffvorlage und/oder entsprechender Prozeßparameter derart steuert, daß die Produktstromförderung zur Homogenisier- und/oder Dispergiereinrichtung (6) immer unter Vordruck erfolgt.Device for homogenizing and / or dispersing flowable, in particular liquid or pasty substances (fabric master), which comprises a container (2) for the fabric master and a motorized homogenizing and / or dispersing device (6), the fabric master being fed from a container outlet (4) is conveyed by means of a feed pump (5) to the homogenizing and / or dispersing device (6), which optionally associated with entry means (9) for additives in liquid or powdery form, and wherein the homogenizing and / or dispersing device (6) optionally a Return conveyance into the container (2) allows
characterized in that the feed pump (5) is driven separately from the homogenizing and / or dispersing device (6), a sensor (14), preferably a pressure sensor, arranged between the pump outlet and the inlet side of the homogenizing and / or dispersing device (6) is, which controls the separate drive (8) of the feed pump (5) variable according to the flow characteristics of the stock and / or corresponding process parameters such that the product flow promotion to homogenizing and / or dispersing (6) always takes place under pre-pressure.
dadurch gekennzeichnet, daß eine öffen- und schließbare Produktableitung (10) in Stoffflußrichtung vor der Einlaßseite der Homogenisier- und/oder Dispergiereinrichtung (6) angeordnet ist.Device according to claim 1,
characterized in that an openable and closable product discharge (10) in the material flow direction in front of the inlet side of the homogenizing and / or dispersing device (6) is arranged.
dadurch gekennzeichnet, daß die Förderpumpe (5) von einer Kreiselpumpe gebildet wird.Apparatus according to claim 1 or 2,
characterized in that the feed pump (5) is formed by a centrifugal pump.
dadurch gekennzeichnet, daß die Förderpumpe (5) einen tangentialen Auslaß hat, welcher mit der Einlaßseite der Homogenisier- und/oder Dispergiereinrichtung (6) verbunden ist.Device according to one of claims 1 to 3,
characterized in that the feed pump (5) has a tangential outlet which is connected to the inlet side of the homogenizing and / or dispersing device (6).
dadurch gekennzeichnet, daß die Rückführung des Produktstroms von der Auslaßseite der Homogenisier- und/oder Dispergiereinrichtung (6) zur Nähe des Behälterauslasses (4) und/oder zum oberen Bereich des Behälters (2), vorzugsweise oberhalb des Stoffvorlagenpegels, erfolgt.Device according to one of claims 1 to 4,
characterized in that the return of the product stream from the outlet side of the homogenizing and / or dispersing device (6) to the vicinity of the container outlet (4) and / or the upper region of the container (2), preferably above the fabric master level occurs.
dadurch gekennzeichnet, daß im Behälter (6) ein axial und/oder radialförderndes (3) Rührorgan angeordnet ist.Device according to one of claims 1 to 5,
characterized in that in the container (6) an axially and / or radially conveying (3) stirring element is arranged.
dadurch gekennzeichnet, daß der Antrieb (7) für die Homogenisier- und/oder Dispergiereinrichtung (6) und der Antrieb (8) für die Förderpumpe (5) mittels Frequenzumrichter gesteuert sind.Device according to one of claims 1 to 6,
characterized in that the drive (7) for the homogenizing and / or dispersing device (6) and the drive (8) for the feed pump (5) are controlled by means of frequency converter.
dadurch gekennzeichnet, daß die Förderleistung der Förderpumpe (5) und die Förderleistung der Homogenisier- und/oder Dispergiereinrichtung (6) unabhängig voneinander variierbar sind.Device according to one of the preceding claims,
characterized in that the delivery rate of the feed pump (5) and the delivery rate of the homogenizing and / or dispersing device (6) are independently variable.
dadurch gekennzeichnet, daß die Eintragseinrichtungen (9) für Additive in flüssiger oder pulvriger Form aktiviert werden, wenn der insbesondere als Drucksensor ausgelegte Sensor (14) Unterdruckbedingungen erfasst.Device according to one of claims 1 to 8,
characterized in that the entry means (9) are activated for additives in liquid or powdery form when the sensor (14) designed in particular as a pressure sensor detects negative pressure conditions.
dadurch gekennzeichnet, daß die Verweilzeit in der Scherzone der Homogenisier- und/oder Dispergiereinrichtung (6) durch die Förderleistung (Drehzahl) der Förderpumpe (5) zur Energiedichtenabstimmung eingestellt bzw. variiert wird.Device according to one of claims 1 to 9,
characterized in that the residence time in the shear zone of the homogenizing and / or dispersing device (6) is adjusted or varied by the delivery rate (rotational speed) of the feed pump (5) for energy density adjustment.
dadurch gekennzeichnet, daß die Förderpumpe (5) und die Homogenisier- und/oder Dispergiereinrichtung (6) eine kompakte Baueinheit bilden, wobei insbesondere diese Baueinheit mittels eines Flansches am Behälter (2) angebracht ist.Device according to one of the preceding claims,
characterized in that the feed pump (5) and the homogenizing and / or dispersing device (6) form a compact unit, wherein in particular this unit is mounted by means of a flange on the container (2).
dadurch gekennzeichnet, daß eine Steuervorrichtung vorgesehen ist, welche vorzugsweise in Abhängigkeit von der Drehzahl der Homogenisier- und/oder Dispergiereinrichtung (6) selbsttätig die Förderpumpe (5) auf Vordruckbedingungen einstellt.Device according to one of the preceding claims,
characterized in that a control device is provided which preferably depending on the speed of the homogenizing and / or dispersing device (6) automatically adjusts the feed pump (5) on admission pressure conditions.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005017075A DE102005017075A1 (en) | 2005-04-13 | 2005-04-13 | Device for homogenizing and / or dispersing flowable substances |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1712271A2 true EP1712271A2 (en) | 2006-10-18 |
| EP1712271A3 EP1712271A3 (en) | 2007-10-24 |
| EP1712271B1 EP1712271B1 (en) | 2008-11-19 |
Family
ID=36676585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06006605A Not-in-force EP1712271B1 (en) | 2005-04-13 | 2006-03-29 | Apparatus for homogenizing and/or dispersing flowable materials |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060233042A1 (en) |
| EP (1) | EP1712271B1 (en) |
| AT (1) | ATE414565T1 (en) |
| DE (2) | DE102005017075A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1741483A3 (en) * | 2005-07-07 | 2007-10-03 | Rohm and Haas Company | Process for making slurries |
| WO2007140764A1 (en) * | 2006-06-03 | 2007-12-13 | Frymakoruma Ag | Homogenizer device with horizontally supported sprockets |
| WO2010025913A3 (en) * | 2008-09-05 | 2010-07-15 | Axel Wittek | Installation components for an installation for producing dispersions, comrpising inter alia two inlet pipes, an intermediate piece, a rotor-stator dispersion machine and an outlet device |
| CN103933883A (en) * | 2014-04-03 | 2014-07-23 | 符向东 | Filter pressing clean coal homogenizing system and method |
| WO2014131644A1 (en) * | 2013-03-01 | 2014-09-04 | Tetra Laval Holdings & Finance S.A. | A liquid processing mixer and method |
| EP2602019A4 (en) * | 2010-08-05 | 2016-01-20 | Sintokogio Ltd | Circulation-type dispersion system, and circulation-type dispersion method |
| CN111229086A (en) * | 2020-03-01 | 2020-06-05 | 天伟化工有限公司 | Preparation system of polymerization emulsifier in polyvinyl chloride paste resin production and control method thereof |
| EP3838389A1 (en) * | 2019-12-16 | 2021-06-23 | Sika Technology Ag | Device for introducing powdered substances, in particular powdered substances capable of explosion into a liquid, in particular a flammable liquid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070189112A1 (en) * | 2006-02-16 | 2007-08-16 | Sandra Knape | Procedure and device for homogenizing |
| DE202007004912U1 (en) * | 2007-04-03 | 2007-07-26 | Blum, Holger | Apparatus for treating ballast water with aqueous acrolein solution |
| DE102008011253A1 (en) * | 2008-02-27 | 2009-09-10 | SÜDDEKOR GmbH | System and procedure |
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| EP1741483A3 (en) * | 2005-07-07 | 2007-10-03 | Rohm and Haas Company | Process for making slurries |
| WO2007140764A1 (en) * | 2006-06-03 | 2007-12-13 | Frymakoruma Ag | Homogenizer device with horizontally supported sprockets |
| US8215824B2 (en) | 2006-06-03 | 2012-07-10 | Frymakoruma Ag | Homogenizer device having horizontally mounted gear rims |
| WO2010025913A3 (en) * | 2008-09-05 | 2010-07-15 | Axel Wittek | Installation components for an installation for producing dispersions, comrpising inter alia two inlet pipes, an intermediate piece, a rotor-stator dispersion machine and an outlet device |
| US8820796B2 (en) | 2008-09-05 | 2014-09-02 | Axel Wittek | Transitional elements for the transfer of dispersions during processing in a rotor-stator dispersion machine |
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| EP2602019A4 (en) * | 2010-08-05 | 2016-01-20 | Sintokogio Ltd | Circulation-type dispersion system, and circulation-type dispersion method |
| US9630155B2 (en) | 2010-08-05 | 2017-04-25 | Sintokogio, Ltd. | System and a method for dispersing by circulation |
| US10207204B2 (en) | 2013-03-01 | 2019-02-19 | Tetra Laval Holdings & Finance S.A. | Liquid processing mixer for mixing a liquid with an additive |
| WO2014131644A1 (en) * | 2013-03-01 | 2014-09-04 | Tetra Laval Holdings & Finance S.A. | A liquid processing mixer and method |
| CN105026026A (en) * | 2013-03-01 | 2015-11-04 | 利乐拉瓦尔集团及财务有限公司 | A liquid processing mixer and method |
| CN103933883A (en) * | 2014-04-03 | 2014-07-23 | 符向东 | Filter pressing clean coal homogenizing system and method |
| EP3838389A1 (en) * | 2019-12-16 | 2021-06-23 | Sika Technology Ag | Device for introducing powdered substances, in particular powdered substances capable of explosion into a liquid, in particular a flammable liquid |
| WO2021122610A1 (en) * | 2019-12-16 | 2021-06-24 | Sika Technology Ag | Device for incorporation of pulverulent materials, especially dust-explosive pulverulent materials, into a liquid, especially an inflammable liquid |
| CN115151338A (en) * | 2019-12-16 | 2022-10-04 | 宣伟涂料德国有限公司 | Device for introducing pulverulent material, in particular pulverulent material capable of dust explosion, into a liquid, in particular a combustible liquid |
| CN111229086A (en) * | 2020-03-01 | 2020-06-05 | 天伟化工有限公司 | Preparation system of polymerization emulsifier in polyvinyl chloride paste resin production and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1712271B1 (en) | 2008-11-19 |
| EP1712271A3 (en) | 2007-10-24 |
| ATE414565T1 (en) | 2008-12-15 |
| DE102005017075A1 (en) | 2006-10-19 |
| DE502006002095D1 (en) | 2009-01-02 |
| US20060233042A1 (en) | 2006-10-19 |
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