EP0290033A1 - Homogénéisateur pour la production de produits liquides - Google Patents

Homogénéisateur pour la production de produits liquides Download PDF

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Publication number
EP0290033A1
EP0290033A1 EP88107285A EP88107285A EP0290033A1 EP 0290033 A1 EP0290033 A1 EP 0290033A1 EP 88107285 A EP88107285 A EP 88107285A EP 88107285 A EP88107285 A EP 88107285A EP 0290033 A1 EP0290033 A1 EP 0290033A1
Authority
EP
European Patent Office
Prior art keywords
rotation
rotor
stator
homogenizer
rotor blades
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
Application number
EP88107285A
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German (de)
English (en)
Other versions
EP0290033B1 (fr
Inventor
Alwin Berents
Erwin Seefried
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.)
A Berents & Co KG GmbH
Original Assignee
A Berents & Co KG GmbH
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Publication date
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Application filed by A Berents & Co KG GmbH filed Critical A Berents & Co KG GmbH
Priority to AT88107285T priority Critical patent/ATE80807T1/de
Publication of EP0290033A1 publication Critical patent/EP0290033A1/fr
Application granted granted Critical
Publication of EP0290033B1 publication Critical patent/EP0290033B1/fr
Anticipated expiration legal-status Critical
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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
    • B01F27/80—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
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/752—Discharge mechanisms with arrangements for converting the mechanism from mixing to discharging, e.g. by either guiding a mixture back into a receptacle or discharging it

Definitions

  • the invention relates to a homogenizer for the production of a flowable product such as an emulsion or the like with a stator which is driven by a motor and has rotor blades, which surrounds the rotor and through which the material flows from the inside to the outside.
  • Homogenizers of this type work to produce an intensive homogenization with strong turbulence and thus unfavorable flow conditions, so that relatively high drive energies are required for processing highly viscous products. Because of these turbulences, such homogenizers produce only a very slight pumping action, so that additional pumps must be used to circulate the flowable product or additional blades or the like are attached to the rotor of the homogenizer in order to improve the pumping action (DE-OS 34 17 242). However, such solutions or special constructions mean a relatively high outlay, a complication of the homogenizer and a possibly increased susceptibility to failure.
  • the present invention is based on the object of proposing a homogenizer with which it is possible to easily switch to a higher pumping action without this requiring more effort.
  • a homogenizer of the type mentioned at the outset which is characterized in that the rotor can be driven both in one and in the other direction of rotation and in that the conveying surfaces of the rotor blades are shaped in relation to the flow openings of the stator in such a way that one direction of rotation the flow of the flowable product occurs approximately at right angles to the walls of the flow openings and an optimal homogenization effect is achieved, but in the other direction of rotation is directed in the direction of the flow openings and achieves an optimal pumping effect.
  • This solution has the significant advantage that it is possible to switch the homogenizer to pump operation in a very simple manner, namely when driven by an electric motor in an electrical manner, without having to operate valves or the like. Since homogenizers are already designed for these high outputs due to the high drive power required for homogenization, very high pump outputs can be achieved after switching the direction of rotation.
  • An advantageous embodiment is characterized in that the rotor blades are provided with first conveying surfaces which are effective in one direction of rotation and are designed for homogenization and with second conveying surfaces which are effective in the other direction of rotation and are designed for optimal pumping.
  • the homogenizer is preferably designed in such a way that the first conveying surfaces of the rotor blades run approximately radially and that the second conveying surfaces have a spiral course with a continuously decreasing distance from the stator when rotating in the other direction of rotation.
  • the first and second conveying surfaces of the rotor blades are preferably shaped such that their directional components are approximately perpendicular to one another in the two directions of rotation. Such an extreme shape has the effect that during the homogenization operation there is practically only turbulence and homogenization without any appreciable pumping action, while the optimal flow conditions are present during the pumping operation, so that high pumping capacities can be achieved with relatively low energy.
  • the stator expediently has a plurality of guide blades distributed around the circumference, the flow openings of which run approximately parallel to the directional components in pumping operation in the other direction of rotation.
  • the flow resistances are minimized by this design, while in the homogenizing operation the directional components strike the walls at the flow openings approximately at right angles, which leads to strong turbulence and effective homogenization.
  • Another embodiment is characterized in that the rotor has a plurality of radially inclined rotor blades and the stator has a plurality of radially inclined guide vanes, that the inclination of the rotor blades is opposite to the inclination of the stator blades, preferably two sets of each Rotor blades and two sets of vanes are provided.
  • Such a homogenizer which can be switched over to pumping operation can expediently be used for pumping off the flowable product after homogenization has been completed by reversing the direction of rotation of the rotor and switching over to a drain.
  • Such an insert is particularly simple to set up in terms of system and has the advantage over the use of an additional pump that the device that is not required in each case does not have to be shut down and possibly cleaned before being put back into operation.
  • the homogenizer according to the invention can, however, also be used particularly simply for circulating the flowable product or for adding an additional component to the product while reversing the direction of rotation of the rotor.
  • an additional component is added, a homogenization operation is usually not necessary, so that the high pumping power of the switched homogenizer leads to a high circulation and thus mixing speed.
  • a stator 2 and a rotor 1 are accommodated in a housing 3, the rotor being driven by a drive shaft 4.
  • the homogenizer has an inlet 5 and an outlet 6.
  • the stator 2 has a plurality of guide vanes 21 distributed around the circumference, which form flow openings 22 between them.
  • the rotor 1 seated on the drive shaft 4 has four in the present exemplary embodiment Rotor blades 11, which have differently shaped first conveying surfaces 12 and second conveying surfaces 13 depending on the direction of rotation. While the first conveying surfaces 12 run approximately radially, the second conveying surfaces 13 are spiral-shaped and, when the rotor 1 rotates counterclockwise (as seen in FIG. 2), they are at a continuously decreasing distance from the stator 2.
  • the directional components 14 and 15 are approximately perpendicular to one another in the homogenizing mode or in the pumping mode, which means that in the homogenizing mode the flow of the flowable product is practically perpendicular to the walls 23 of the guide vanes 21 hit, so that practically no pumping effect is generated.
  • the homogenizer is to be given a slight pumping action, then the first conveying surface 12 or the walls 23 of the stator 2 are designed to be slightly different from a perpendicular relationship to one another in order to achieve a larger outwardly directed component. It is also possible to provide a deviation from the optimal pumping action in the operating mode according to FIG. 4 if a slight swirl is desirable.
  • Fig. 5 it is shown how with the homogenizer according to the invention, consisting of the rotor 1, the stator 2, the drive shaft 4 and a drive motor 7, a simple switchover from the homogenizing operation to pumping or circulation can take place. Only a three-way valve 8 is required to control these processes, but no additional pumps or shut-off valves. If the outlet 6 of the homogenizer is connected to a return 9 to a mixing container via the three-way valve 8, the homogenization operation takes place in one direction of rotation, the flowable product leaving the outlet 6 being reintroduced into the mixing container 10 via the return 9.
  • the three-way valve 8 is switched over and the homogenizer is operated in the reverse direction of rotation of the motor 7 (pump operation). In this case, the flowable product flows from the outlet 6 via the three-way valve 8 to the outlet 20.
  • the second embodiment of the homogenizer according to the invention shown in FIGS. 6 and 7 has a differently designed rotor 1 and a differently designed stator 2.
  • the homogenizer is designed in particular in two stages in order to further improve the homogenization effect; however, it is also possible to construct a single-stage homogenizer in the manner of the second embodiment according to the principle according to the invention.
  • the rotor 1, which is driven via a drive shaft 4, contains inner rotor blades 11a and outer rotor blades 11b.
  • the stator 2 has inner guide blades 21a and outer guide blades 21b, rotor blades and guide blades being arranged alternately one behind the other.
  • the directional arrows 17 of the rotor 1 indicated in FIG. 7 relate to the pumping direction of the homogenizer, and the flowable product is drawn in in the direction of the arrows 18 and pumped out in the direction 6 of the arrows 6 into the outlet 6.
  • the flow openings 22a between the rotor blades 11a and 11b are inclined with respect to the radial direction opposite to the direction of rotation 17 (pumping direction), while the flow openings 22b between the guide blades 21a and 21b are inclined with respect to the radial direction in the direction of rotation 17. This means that the inclination of the rotor blades 11a and 11b is opposite to the inclination of the stator blades 21a and 21b.
  • Both embodiments have in common that the homogenizer is designed in such a way that in one direction of rotation there are optimal conditions for effective homogenization, while in the opposite direction of rotation optimal flow conditions are set for an optimal pumping action.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP88107285A 1987-05-08 1988-05-06 Homogénéisateur pour la production de produits liquides Expired - Lifetime EP0290033B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107285T ATE80807T1 (de) 1987-05-08 1988-05-06 Homogenisator fuer die herstellung fliessfaehiger produkte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3715331 1987-05-08
DE19873715331 DE3715331A1 (de) 1987-05-08 1987-05-08 Homogenisator fuer die herstellung fliessfaehiger produkte

Publications (2)

Publication Number Publication Date
EP0290033A1 true EP0290033A1 (fr) 1988-11-09
EP0290033B1 EP0290033B1 (fr) 1992-09-23

Family

ID=6327089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107285A Expired - Lifetime EP0290033B1 (fr) 1987-05-08 1988-05-06 Homogénéisateur pour la production de produits liquides

Country Status (3)

Country Link
EP (1) EP0290033B1 (fr)
AT (1) ATE80807T1 (fr)
DE (2) DE3715331A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2679789A1 (fr) * 1991-07-31 1993-02-05 Ouest Enrobes Modernes Melangeur-disperseur a pulsations pour la preparation de produits thermoplastiques, en particulier de produits bitumineux.
EP0801974A1 (fr) * 1996-04-17 1997-10-22 Haagen & Rinau Mischtechnik GmbH Dispositif d'homogénéisation et/ou de dispersion d'un matériau apte à écoulement libre
EP0988887A1 (fr) * 1998-08-25 2000-03-29 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Homogénisateur avec un dispositif de protection sur le rotor
EP1197260A1 (fr) * 2000-10-11 2002-04-17 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Dispositif d'homogénéisation des matériaux fluides
DE19537303B4 (de) * 1995-08-29 2005-04-21 Vakumix Rühr- und Homogenisiertechnik AG Vorrichtung zum Homogenisieren fließfähiger Stoffe
WO2007060501A1 (fr) * 2005-11-23 2007-05-31 Frymakoruma Ag Homogeneiseur comportant un rotor, un inducteur (vis inducteur) pouvant tourner dans le sens oppose au rotor et un rotor a contre-courant pouvant tourner en direction opposee au rotor
EP1844849A1 (fr) * 2006-03-29 2007-10-17 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Dispositif pour homogénéiser, mélanger ou disperser de matières fluides
US7325966B2 (en) 2003-05-09 2008-02-05 Ika-Werke Gmbh & Co. Kg Device for dispersion and/or homogenization
EP2092975A3 (fr) * 2008-02-25 2009-09-02 LIPP Mischtechnik GmbH Dispositif de mélange doté d'un pot de mélange fixé sur un récipient de mélange
BE1022904B1 (nl) * 2015-07-13 2016-10-11 Packo Inox N.V. Rotor-stator mixer
WO2020156805A1 (fr) * 2019-02-01 2020-08-06 Ystral Gmbh Maschinenbau + Processtechnik Rotor pour un dispositif destiné à mélanger de la poudre et du liquide et dispositif pour mélanger de la poudre et du liquide
CN112210421A (zh) * 2020-10-22 2021-01-12 佛山肯天新材料科技有限公司 一种石墨烯润滑脂生产工艺
US11931707B1 (en) * 2023-11-16 2024-03-19 Herman Hockmeyer System for agglomerate mixing having a rotor and angular slotted stator

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19916053B4 (de) * 1999-04-09 2005-05-19 Vakumix Rühr- und Homogenisiertechnik AG Vorrichtung zum Homogenisieren fließfähiger Stoffe
DE19919859C2 (de) * 1999-04-30 2002-08-22 Guenter Slowik Verfahren und Vorrichtung zur Behandlung von in einem Behälter, insbesondere durch Misch- oder Rührvorgänge, in Rotation um die Behälterachse befindlichem Stoff oder Stoffgemisch
DE19923378C2 (de) * 1999-05-21 2003-04-30 Vakumix Ruehr Und Homogenisier Vorrichtung zum Homogenisieren fließfähiger Stoffe
DE20002920U1 (de) 2000-02-18 2000-04-20 Schroeder & Boos Misch Und Anl Homogenisator
CN100482305C (zh) * 2004-02-21 2009-04-29 西北工业大学 劈裂剪切器
JP2013132573A (ja) * 2011-12-26 2013-07-08 Jtekt Corp 混合分散装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388889A (en) * 1972-08-11 1975-03-26 Giusti Son Ltd T Rotary mixing apparatus
DE3243671A1 (de) * 1982-11-25 1984-05-30 Karg Ytron Gmbh Vorrichtung zum kontinuierlichen mischen pulvriger stoffe mit fluessigkeiten
DE3417242A1 (de) * 1984-05-10 1985-11-14 Haagen & Rinau Homogenisiereinrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH466818A (fr) * 1967-12-08 1968-12-15 Pista Sa Procédé de traitement d'un liquide au moyen d'un fluide gazeux et installation pour la mise en oeuvre de ce procédé
DE2805942C2 (de) * 1978-02-13 1986-09-18 Alwin 2800 Bremen Berents Vorrichtung zum Homogenisieren fließfähiger Stoffe
DE3517879A1 (de) * 1985-05-17 1986-11-20 Ytron Dr. Karg GmbH, 7151 Affalterbach Zyklon-mischvorrichtung zum kontinuierlichen mischen von pulverigen stoffen mit fluessigkeiten

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388889A (en) * 1972-08-11 1975-03-26 Giusti Son Ltd T Rotary mixing apparatus
DE3243671A1 (de) * 1982-11-25 1984-05-30 Karg Ytron Gmbh Vorrichtung zum kontinuierlichen mischen pulvriger stoffe mit fluessigkeiten
DE3417242A1 (de) * 1984-05-10 1985-11-14 Haagen & Rinau Homogenisiereinrichtung

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2679789A1 (fr) * 1991-07-31 1993-02-05 Ouest Enrobes Modernes Melangeur-disperseur a pulsations pour la preparation de produits thermoplastiques, en particulier de produits bitumineux.
DE19537303B4 (de) * 1995-08-29 2005-04-21 Vakumix Rühr- und Homogenisiertechnik AG Vorrichtung zum Homogenisieren fließfähiger Stoffe
EP0801974A1 (fr) * 1996-04-17 1997-10-22 Haagen & Rinau Mischtechnik GmbH Dispositif d'homogénéisation et/ou de dispersion d'un matériau apte à écoulement libre
EP0988887A1 (fr) * 1998-08-25 2000-03-29 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Homogénisateur avec un dispositif de protection sur le rotor
EP1197260A1 (fr) * 2000-10-11 2002-04-17 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Dispositif d'homogénéisation des matériaux fluides
US7325966B2 (en) 2003-05-09 2008-02-05 Ika-Werke Gmbh & Co. Kg Device for dispersion and/or homogenization
US8721168B2 (en) 2005-11-23 2014-05-13 Frymakoruma Ag Homogenizer device having a rotor and an advance wheel (inducer screw) that can rotate opposite to the rotor and a counter-current rotor that can rotate opposite to the rotor
WO2007060501A1 (fr) * 2005-11-23 2007-05-31 Frymakoruma Ag Homogeneiseur comportant un rotor, un inducteur (vis inducteur) pouvant tourner dans le sens oppose au rotor et un rotor a contre-courant pouvant tourner en direction opposee au rotor
EP1844849A1 (fr) * 2006-03-29 2007-10-17 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Dispositif pour homogénéiser, mélanger ou disperser de matières fluides
EP2092975A3 (fr) * 2008-02-25 2009-09-02 LIPP Mischtechnik GmbH Dispositif de mélange doté d'un pot de mélange fixé sur un récipient de mélange
BE1022904B1 (nl) * 2015-07-13 2016-10-11 Packo Inox N.V. Rotor-stator mixer
WO2020156805A1 (fr) * 2019-02-01 2020-08-06 Ystral Gmbh Maschinenbau + Processtechnik Rotor pour un dispositif destiné à mélanger de la poudre et du liquide et dispositif pour mélanger de la poudre et du liquide
CN112210421A (zh) * 2020-10-22 2021-01-12 佛山肯天新材料科技有限公司 一种石墨烯润滑脂生产工艺
US11931707B1 (en) * 2023-11-16 2024-03-19 Herman Hockmeyer System for agglomerate mixing having a rotor and angular slotted stator

Also Published As

Publication number Publication date
ATE80807T1 (de) 1992-10-15
EP0290033B1 (fr) 1992-09-23
DE3715331A1 (de) 1988-12-01
DE3715331C2 (fr) 1992-11-26
DE3874801D1 (de) 1992-10-29

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