EP3572145B1 - Vorrichtung und verfahren zum homogenisieren fliessfähiger stoffe - Google Patents

Vorrichtung und verfahren zum homogenisieren fliessfähiger stoffe Download PDF

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Publication number
EP3572145B1
EP3572145B1 EP19175326.8A EP19175326A EP3572145B1 EP 3572145 B1 EP3572145 B1 EP 3572145B1 EP 19175326 A EP19175326 A EP 19175326A EP 3572145 B1 EP3572145 B1 EP 3572145B1
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EP
European Patent Office
Prior art keywords
drive
rotation element
housing
rotation
drive shaft
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Application number
EP19175326.8A
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German (de)
English (en)
French (fr)
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EP3572145A1 (de
Inventor
Olaf Hommers
Ulf Sieckmann
Jörg SEIDEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Symex GmbH and Co KG
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Symex GmbH and Co KG
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Publication date
Application filed by Symex GmbH and Co KG filed Critical Symex GmbH and Co KG
Priority to PL19175326T priority Critical patent/PL3572145T3/pl
Publication of EP3572145A1 publication Critical patent/EP3572145A1/de
Application granted granted Critical
Publication of EP3572145B1 publication Critical patent/EP3572145B1/de
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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
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/40—Mixers with rotor-rotor system, e.g. with intermeshing teeth

Definitions

  • the invention relates to a device for homogenizing flowable substances, with a housing, the housing having an inlet opening through which the flowable material flows into the interior space, and an outlet opening through which the homogenized material can flow out of the housing, a first rotatable in the housing mounted rotary element, a second rotary element rotatably mounted in the housing, wherein the second rotary element can be driven independently of the first rotary element.
  • Such devices are used, for example, in the cosmetic, pharmaceutical or chemical industry in the production of creams, ointments, pastes or the like.
  • the device is e.g. B. arranged at the lowest point of a container, for example an agitator container, and homogenizes and / or disperses the flowable substance by applying shear forces to the substance using a rotary element or a rotor together with a stationary stator.
  • the device could also be placed separately next to one or between two containers.
  • the homogenized substance can either be conveyed back into the container, another container or to a filling plant.
  • the homogenization can essentially be influenced by varying the speed of the rotary element in relation to the stationary stator or by the specific design of the rotor and / or the stator. At high speeds, the shearing action and also the conveying effect of the device for homogenizing is greater than at low speeds.
  • a disadvantage of the known devices is that the shearing action and the conveying action are directly coupled to one another.
  • Another disadvantage is that if the engine speed is too high, the shear effect becomes so great that the material to be homogenized can be adversely affected or possibly even damaged.
  • the EP 1 825 907 B1 discloses a device for homogenizing flowable substances, with a rotor mounted rotatably in a housing and drivable by means of a drive device, and a drivable rotary element for homogenizing and / or conveying a flowable substance.
  • the rotary element can be driven in the same direction as or in the opposite direction to the rotor by means of a drive device.
  • the drive devices of the rotor and the rotating element can be controlled independently of one another. The possibility of varying the shear action and the pumping action can thus be controlled to a certain extent, but require further optimization in order to meet the growing requirements and, in particular, increasing container sizes / batch sizes in the cosmetic, pharmaceutical or chemical industries.
  • KR 100738643 B1 discloses a mixing device with a plurality of drive units or drive devices for driving rotatable elements which protrude into the mixing container from above or from below for mixing.
  • a homogenizing device is arranged at the bottom of the container.
  • CH 628522 discloses a device for liming juice during juice purification in sugar factories, which has a cylindrical vessel with several sub-spaces. Stirring elements that sit on a shaft are arranged in the sub-spaces. Several motors each drive a shaft that protrudes into the vessel at a distance from one another.
  • WO 91/07223 relates to a device for mixing and / or grinding pastes and a first and second rotatable element are arranged within a drum. Even US 2015 / 0328602A1 discloses an agitator having two rotor elements.
  • the object of the present invention is to avoid the disadvantages known from the prior art and, in particular, to provide a device with which the homogenization effect can be influenced more strongly and the shearing action and the pumping action can be adapted to the respective requirements.
  • the invention solves this problem by a device with the features of claim 1.
  • the invention solves the underlying object in devices for homogenizing flowable substances by a third rotary element, which is rotatably mounted in the housing and is operatively connected to a corresponding drive device, wherein the drive device is set up to drive the third rotary element independently of the first and second rotary element.
  • the first drive shaft is operatively connected to a first drive device, the second drive shaft to a second drive device and the third drive shaft to a third drive device.
  • the first drive shaft is rotatably mounted in the second drive shaft
  • the second drive shaft is configured as a hollow shaft and rotatably mounted in the third drive shaft
  • the outer drive shaft is configured as a hollow shaft and rotatably mounted in the housing.
  • the storage of the drive shafts can be designed in an expedient manner so that the inner drive shaft is supported by means of roller bearings in the middle shaft and the middle shaft in turn is supported by means of roller bearings in the outer shaft, which is supported in the housing.
  • Advantages of the invention consist essentially in the fact that the additional, separately and independently of the first and second rotary element drivable third rotary element influences the homogenization and conveyance in many ways and can be adapted to the respective production requirements.
  • the shear effect on the fabric can be adjusted in particular by setting and varying the relative speeds of the three rotatable elements.
  • the rotatable elements can be driven in the same direction or in opposite directions in order to be able to vary the shear effect continuously within large ranges.
  • the shear effect can be varied independently of the delivery rate (i.e. the delivery rate of the material).
  • the shearing action is at a maximum, with a significantly lower absolute rotational speed being necessary for the same shearing action in comparison with conventional devices for homogenization.
  • the drives can be designed for lower rotational speeds or higher shear rates can be achieved.
  • the rotary elements can be coupled to a drive in a geometrically favorable manner independently of one another by means of three separate drive shafts.
  • the drive shafts are arranged coaxially to one another and essentially vertically.
  • the drive shafts can be coupled to a drive in a simple manner with a coupling means, such as toothed belts, chains, V-belts, friction wheels, toothed wheels or the like, and the rotation elements can be aligned essentially vertically in the container.
  • the drive shafts are furthermore preferably coupled to the respective corresponding drive devices by means of toothed wheels and toothed belts.
  • At least one shaft seal for sealing the interior of the housing of the device against the environment preferably in each case a shaft seal corresponding to one of the three drive shafts, is provided.
  • At least one mechanical seal is preferably provided to seal the interior of the housing from the environment.
  • an agitator container to which a device according to the invention for homogenizing can be connected there are often negative or positive pressures which can thus be safely controlled.
  • the drive devices can be controlled in such a way that the first, second and third rotation elements each rotate in both directions of rotation.
  • the drives can be controlled in such a way that the shear effect due to the opposite directions of rotation is maximized.
  • the first, preferably outer, rotary element and / or the second rotary element are designed as a pump wheel with a plurality of pump blades. High conveying effects are thus achieved, while the rotating elements essentially generate the shear effect of the device.
  • the first rotary element and / or the second are designed in the manner of a stator or a rotor with vanes.
  • this is a device for homogenizing, which can generate a maximum shear effect.
  • the device according to the invention is particularly preferably developed in that the third rotary element is coupled to means for homogenization, in particular stirring and cutting means.
  • stirring and cutting tools can be used, which can be adapted according to the respective requirements. For example, tools can be used to pre-shred large components or for targeted premixing and feeding of the flowable material.
  • At least one return line communicating with the outlet opening of the housing is also preferably provided, through which the flowable substance can be returned to a container at various discrete positions depending on the position of a control valve.
  • the substance can also expediently be recycled for small amounts of a substance to be homogenized, for example.
  • one or more of the drive shafts of the rotary elements is drive-coupled to a motor.
  • a motor is a simple instantaneous drive for such a device.
  • the underlying object is achieved by a container, in particular an agitator container, with a couplable device according to the invention for homogenizing flowable material.
  • a container in particular an agitator container
  • a couplable device according to the invention for homogenizing flowable material With regard to the advantages achieved and preferred embodiments, reference is made to the above explanations of the device for homogenizing flowable material.
  • a container, in particular an agitator container, with such a device makes the corresponding advantages its own.
  • the object on which the invention is based is achieved by a method for homogenizing flowable substances by means of a device according to the invention for homogenizing flowable material.
  • Figure 1 shows the device 1 according to the invention for homogenizing flowable substances, which can be coupled to a container 2, also referred to as an agitator container.
  • the device 1 and the container 2 are coupled by means of a flange connection.
  • the device 1 also has a housing 9 which comprises a plurality of housing parts 9a, 9b, 9c which are mechanically connected.
  • the device 1 has an outlet opening 19 on the side, which forms an outlet and can be connected in a fluid-conducting manner to a line or another receiving means.
  • the device 1 also has an inlet opening 11, which can be connected to the container 2 in a fluid-conducting manner, and a further opening 21 which can be coupled to an addition line so that liquid, solid or pasty additives can be added.
  • the device 1 has a first drive device 15, a second drive device 17 (cf. Fig. 2 ) and a third drive unit 13 (cf. Fig. 2 ) on.
  • the device 1 comprises a first rotary element 25 rotatably mounted in the housing 9 and drivable by means of the first drive device 15, a second independently of the first rotary element 25 by means of the second drive device 17 (cf. Fig. 2 ) drivable rotary element 27 and a third rotary element 23 rotatably mounted in the housing 9, which by means of the third drive unit 13 (cf. Fig. 2 ) can be driven independently of the first and second rotary elements 25, 27.
  • the first rotation element 25 and the first drive device 15 are coupled to one another via a first drive shaft 5.
  • the second rotation element 27 is connected to the second drive device 17 (cf. Fig. 2 ) coupled via a second drive shaft 7.
  • the third Rotation element 23 is connected to the third drive device 13 (cf. Fig. 2 ) coupled via a third drive shaft 3.
  • the three drive shafts 3, 5 and 7 are arranged coaxially, the second and third drive shafts 7, 3 being designed as hollow shafts.
  • the outer drive shaft 3 is supported in the housing 9b by means of two bearings 60, 62, which are roller or slide bearings.
  • the second drive shaft 7 is mounted in the outer shaft 3 by means of two bearings 66, 68, which are roller or sliding bearings, and the third drive shaft is in turn mounted in the second shaft 7 by means of bearings 70, 72.
  • the rotation elements 25, 27 and 23 are each connected in a torsionally rigid manner to an upper end section of the corresponding drive shaft 5, 7, 3 and, according to this embodiment, by means of screws.
  • the three rotation elements 25, 27 and 23 are thus arranged at a distance from one another.
  • the bearings 60, 62, 66, 68, 70, 72 are, for example, filled with lubricant or are designed to be self-lubricating and are fixed in the predetermined positions with the aid of circlips and sleeves.
  • the first, second and third rotary elements 25, 27 and 23 are driven separately from one another, so that the rotary elements can be driven in the same direction or in opposite directions and, moreover, at different rotational speeds.
  • the rotation elements 25, 27 and 23 are axially offset from one another in the longitudinal direction of their axes of rotation.
  • the housing 9b is closed with a cover 74, which at the same time fixes the bearing 62.
  • three mechanical seals 45, 47, 43 are provided.
  • Other shaft seals such as lip seals or the like, could be used.
  • An upper sliding ring of the sliding ring seal 45 is firmly connected to the element 25, while a lower sliding ring is attached to the drive shaft 7 and rotates with it, so that flowable material cannot flow into the interior of the housing 9.
  • An upper ring of the mechanical seal 43 is attached to the inside of the element 23 and is relatively movable to a lower ring of the mechanical seal 43, which is firmly connected to the inside of the drive shaft 3 so that no flowable substance can pass the mechanical seal 43 into the interior of the housing 9 can stream.
  • an upper ring of the mechanical seal 47 is attached to the rotary element 27 and is relatively movable to a lower ring of the mechanical seal 47, which is firmly connected to the inside of the housing 9a, so that no flowable substance can pass the mechanical seal 47 and into the interior of the Housing 9 can flow.
  • the drive shafts 5, 7, 3 can be driven with the aid of toothed wheels 57, 55, 53, toothed belts 37, 35, 33, and drive devices 15, 17, 13 (cf. Fig. 2 ), which include gears and electric motors, are driven at adjustable speeds in both directions of rotation, so that the rotation elements 25, 27, 23 rotate in the same direction or in opposite directions.
  • the rotational speeds and directions of rotation of the rotation elements 25, 27 and 23 can be changed according to the application.
  • the direction of rotation By changing the direction of rotation, the flow, shear and thus the homogenization of the mixture within the container 2 is changed.
  • the first rotation element 25 is coupled to means for homogenization, in particular stirring and cutting tools.
  • the third rotation element 23 is designed in the manner of a pump wheel and comprises a base plate and wing elements.
  • the device 1 is furthermore operatively connected to the first drive device 15, the second drive device 17 and the third drive device 13, which are arranged at a distance.
  • the drive devices 15, 17, 13 can include gears and electric motors.
  • the first rotation element 25, the second rotation element 27 and the third rotation element 23 are arranged in the housing 9 (cf. Fig. 1 ).
  • the first rotation element 25 (cf. Fig. 2 ) is connected to the first drive device 15 and the second rotary element 27 (cf. Fig. 1 ) is connected to the second drive device 17 and the third rotary element 23 (cf. Fig. 1 ) is mechanically, in particular rotationally, coupled to the third drive device 13.
  • the size of the respective drive device can be designed according to the required drive power independently of the respective other drive devices.
  • the first drive device 15, which the first rotation element 25 (cf. Fig. 1 ) drives is in the embodiment according to Fig. 2 smaller than the other drive devices 17, 13.
  • the drive devices 15, 17, 13 can be arranged vertically spaced from one another.
  • the drive devices 15, 17 and 13 are arranged at a distance from the housing 9 of the device 1.
  • the drive devices 15, 17 and 13 are in particular arranged offset from one another by 90 ° around the center point of the device. It goes without saying that other arrangements of the drives are also possible. This results in a compact design and a favorable alignment of the toothed belts 37, 35, 33 (cf. Fig. 1 and 4th ), to each other.
  • Fig. 4 shows a section of an exemplary embodiment in which the torque is transmitted from the drive devices 13, 17 to the drive shafts 3, 7 solely by means of toothed belts 33, 37.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP19175326.8A 2018-05-18 2019-05-20 Vorrichtung und verfahren zum homogenisieren fliessfähiger stoffe Active EP3572145B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19175326T PL3572145T3 (pl) 2018-05-18 2019-05-20 Aparat i sposób do homogenizowania płynnych materiałów

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018102804.9U DE202018102804U1 (de) 2018-05-18 2018-05-18 Vorrichtung zum Homogenisieren fließfähiger Stoffe

Publications (2)

Publication Number Publication Date
EP3572145A1 EP3572145A1 (de) 2019-11-27
EP3572145B1 true EP3572145B1 (de) 2021-08-25

Family

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EP19175326.8A Active EP3572145B1 (de) 2018-05-18 2019-05-20 Vorrichtung und verfahren zum homogenisieren fliessfähiger stoffe

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EP (1) EP3572145B1 (pl)
DE (1) DE202018102804U1 (pl)
ES (1) ES2899455T3 (pl)
PL (1) PL3572145T3 (pl)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100738643B1 (ko) * 2006-08-08 2007-07-11 주식회사 엘지생활건강 교반 장치

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH353724A (de) * 1959-04-10 1961-04-30 Alfred Brogli & Co Maschine zur Herstellung von Mischungen, die mindestens eine flüssige Phase enthalten
FR2218350B1 (pl) * 1973-02-16 1976-05-14 Rhone Progil
DE2318949C2 (de) * 1973-04-14 1975-06-05 Hoechst Ag, 6000 Frankfurt Kombinierte Misch- und Homogenisiermaschine
CH628522A5 (en) * 1981-06-18 1982-03-15 Braunschweigische Masch Bau Apparatus for liming juice in the juice purification in sugar factories
FI895593A7 (fi) * 1989-11-22 1991-05-23 Flowcon Oy Anordning i synnerhet foer behandling av kraemer och pastor.
DE29608712U1 (de) 1996-05-14 1996-09-05 Wittek Axel Homogenisiereinrichtung
JPH10309452A (ja) * 1997-03-11 1998-11-24 Shinko Inbesuto:Kk 粉粒体精密処理装置
DE20002920U1 (de) 2000-02-18 2000-04-20 Schröder & Boos Misch- und Anlagentechnik GmbH & Co. KG, 27578 Bremerhaven Homogenisator
DE102009047777A1 (de) * 2009-09-30 2011-04-07 Azo Holding Gmbh Homogenisator und Homogenisiervorrichtung mit einem solchen Homogenisator
DE202009013755U1 (de) * 2009-10-09 2010-05-12 Kniele, Erwin, Ing.(grad.) Rührgerät zur Herstellung von UHPC (Ultra-Hochfester Beton)
KR20150100629A (ko) * 2012-12-25 2015-09-02 엠. 테크닉 가부시키가이샤 교반 처리 장치 및 처리 방법

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100738643B1 (ko) * 2006-08-08 2007-07-11 주식회사 엘지생활건강 교반 장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 200836, Derwent World Patents Index; Class J02, AN 2008-F46917 *

Also Published As

Publication number Publication date
EP3572145A1 (de) 2019-11-27
DE202018102804U1 (de) 2019-08-22
PL3572145T3 (pl) 2021-12-13
ES2899455T3 (es) 2022-03-11

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