EP0620039A1 - Dispositif d'homogénéisation ou similaire - Google Patents

Dispositif d'homogénéisation ou similaire Download PDF

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Publication number
EP0620039A1
EP0620039A1 EP94105215A EP94105215A EP0620039A1 EP 0620039 A1 EP0620039 A1 EP 0620039A1 EP 94105215 A EP94105215 A EP 94105215A EP 94105215 A EP94105215 A EP 94105215A EP 0620039 A1 EP0620039 A1 EP 0620039A1
Authority
EP
European Patent Office
Prior art keywords
rotor
stator
homogenizing device
base
counterpart
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.)
Withdrawn
Application number
EP94105215A
Other languages
German (de)
English (en)
Inventor
Matthias Dipl.-Wirtsch. Ing. Bea
Reinhard Gras
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.)
Proxes Technology GmbH
Original Assignee
Koruma Maschinenbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE9305553U external-priority patent/DE9305553U1/de
Application filed by Koruma Maschinenbau GmbH filed Critical Koruma Maschinenbau GmbH
Publication of EP0620039A1 publication Critical patent/EP0620039A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/2123—Shafts with both stirring means and feeding or discharging means
    • 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
    • B01F27/2711—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 provided with intermeshing elements
    • 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
    • B01F27/2714—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 the relative position of the stator and the rotor, gap in between or gap with the walls being adjustable
    • 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
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • 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
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • B01F27/2724—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces the relative position of the stator and the rotor, gap in between or gap with the walls being adjustable
    • 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
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
    • B01F35/411—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft
    • B01F35/4113—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft at a side wall of the receptacle
    • 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
    • B01F35/56—General build-up of the mixers
    • 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
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/912—Radial flow

Definitions

  • the invention relates to a homogenizer or similar mixing or dispersing device according to the preamble of claim 1.
  • homogenization means in particular the change in the state of distribution and the particle size of the inner phase, for example emulsions and suspensions.
  • homogenizing device Numerous devices for homogenizing, dispersing, mixing and, if necessary, crushing a medium are already known, such devices being referred to in the following generally and briefly as "homogenizing device".
  • DE-OS 34 17 242 already discloses a homogenizing device for mixing flowable mixed material consisting of at least two components, the at least one rotor provided with rotor blades and one Distances between the rotor blades coordinated, fixed relative to the rotor stator, wherein there are shear gaps between the rotor blades and the stator parts arranged therebetween for the material to be homogenized.
  • a disadvantage of such homogenizing devices is that different constructions are required for the rotor-stator systems for different mixing, homogenizing material or dispersing medium, hereinafter referred to as "medium to be processed” or “medium”.
  • the basic machine parts and the associated conveyor systems can be the same or similar.
  • a rotor with blade rings which differ significantly from those which are well suited for the production of ointments.
  • It is also possible to achieve different favorable working conditions for a homogenization process by using different passage cross sections, for example in the rotor and / or in the stator.
  • cross sections of different sizes can be obtained in the openings, that is to say, for example, different slot widths in the rotor. It is particularly advantageous that not only can the breakthrough cross sections, for example of the rotor, be changed between two batches in a simple manner, but this change can also be carried out while the homogenizer is running.
  • DBGM 88 07 080.8 already knows a dispersing machine in which the stators can be axially displaced and fixed relative to the rotors. As a result, the dispersing action can easily be adjusted depending on the properties of the medium to be processed, for example depending on the viscosity of the material to be processed.
  • the setting range is narrowly limited with regard to its effects on the homogenization, dispersing, etc. and only relates to those dispersing machines in which the rotor and the stator are each formed by a flat disk with openings.
  • the adjustment option according to DBGM 88 07 080.8 cannot be applied to numerous other homogenizing devices or the like.
  • the breakthrough cross-sections or gap widths of both the rotor and that of the stator can be adjusted independently of one another both when the homogenizer is at a standstill and while it is running or the like.
  • a practically continuous adjustment of the slot width of the rotor and / or stator from 0 millimeters to a suitable size is possible. This enables the homogenization device to be adapted to the special requirements of the product to be processed without having to change the rotor or stator. This adjustment of the width of radially outward slits is also possible during the machining process.
  • such a homogenizing device or the like manages with significantly less costs for warehousing and spare parts than such previously known homogenizing devices, in which different designs can be obtained by changing the rotor and / or stator must adapt to the special requirements of the product to be processed.
  • the gap widths can be changed during the working process. So far this has not been possible. At most, this is cumbersome to practice with the previous homogenization devices or the like in that the material to be treated is treated in succession in several devices. The goods to be treated must then be transferred from one device to another. A continuous change of gap widths or similar breakthrough cross-sections in the rotor and / or stator during a continuous workflow cannot be achieved with this effort either.
  • FIG. 1 shows, highly schematized and on a reduced scale, in part above the dash-dotted longitudinal axis L a homogenization device 1 or the like in longitudinal section.
  • a known homogenizing device H is shown below this longitudinal axis in FIG. 1 and in FIG. 2.
  • This has an inlet end b (FIG. 1), which is followed by a guide channel d for the medium to be processed within the outer housing c of the homogenization device H.
  • This moves according to the arrow Pf 1 from the inlet b in the direction of the mixing blades e located in the housing c.
  • This is followed by a dispersing disc f in the flow direction Pf 1 of the medium to be processed. From this, the medium to be processed reaches the stator rotor system according to arrow Pf 2.
  • n is the schematically indicated axial part of a vane pump, which transports the medium processed in the manner described above out of the outlet nozzle o.
  • FIG. 1 is the schematically indicated axial part of a vane pump, which transports the medium processed in the manner described above out of the outlet nozzle o.
  • the drive shaft for the rotor m is designated q and has a rear end cap s. Numerous ring seals r are provided on the shaft g.
  • a homogenization device 1 is now shown in a side view shown in section or in half section (FIG. 1).
  • the embodiments of FIGS. 1 and 14 differ only insignificantly from one another in a form which does not relate to the invention.
  • the term "homogenizing device” here means a device for homogenizing, dispersing, mixing or the like, processing medium to be processed.
  • a shaft 3 is arranged approximately centrally, which is connected to a control head 4 (FIG. 1) known per se and shown only schematically.
  • the housing 2 has an inlet 5 for the medium to be processed.
  • This inlet is located above the drive-distant end of the shaft 3, which has mixing blades 6 or similar conveying members there, which convey the medium to be processed coming from the inlet 5 in the direction of arrow Pf 1 in a guide channel 7 of the device 1 in the direction of its outlet port 8 carry on.
  • the guide channel 7 concentrically surrounds the shaft 3.
  • the inlet of the guide channel 7 belongs to a fixed stator part 9 shown separately in FIG. 5. It is provided with a fastening flange 10 and thus fastened in a sealing manner as part of the housing 2.
  • the mixing blades 6 are rotatably attached to the shaft 3.
  • the fixed stator part 9 is provided in a crown-like manner with an annular, continuous base 11 in the circumferential direction and from this a kind of crown spikes or tapering in the axial direction of a fixed counterpart 14 (FIG. 6) of the stator part 9 , spaced base fingers is provided in the circumferential direction.
  • This is a counterpart 14 matched to the fixed stator part 9, in FIG. 6 drawn in the axial direction from the fixed stator part 9 in the manner of an exploded drawing. Referring to Fig.
  • the counterpart 14 has a hollow inner base 16 so that the crown prong-like base fingers 12 of the fixed stator part 9, which represent portions of a tube, can be inserted into this hollow inner base when the parts 9 and 14 are pushed together.
  • counter fingers 20 extend in the direction of the base 11. They are spaced analogously to the base fingers 12 of the stator part 9 and are shaped in their outline shape to the openings 25 between the base fingers 12 so that they join axially of the fixed stator part 9 and its counterpart 14 can close the gaps between the base fingers 12.
  • FIGS. 7 and 8 analogous to FIGS. 5 and 6, essentially individual parts of the rotor designated as a whole by 26 are shown. It is part of the invention that the rotor 26 has a rotor part 27 which rotates during operation of the homogenizing device 1 and is axially adjustable if necessary, which is shown separately in FIGS. 3 and 4. This is also crown-like in essential parts; namely, it has an essentially annular surface-like base 28 with a crown-pronged rotor base finger 29 extending therefrom in the axial direction. Between adjacent rotor base fingers 29, which are spaced apart in the circumferential direction, there are openings 30 analogous to the openings 25 in the fixed stator part 9.
  • passages 31 In the base 28 of the axially displaceable rotor part 27 there are passages 31 and in the central region of the base 28 there is a guide and adjustment tube 32, hereinafter referred to as “adjustment tube 32” for short.
  • the passages 31 allow the medium to be processed coming from the inlet 5, after it has passed through the inlet-side part of the guide channel 7 (FIG. 14), to now also reach the area of the rotor fingers 29.
  • the axially displaceable rotor part 27 with the associated adjusting tube 32 is reduced in size and shown in a line of alignment with a rotor counterpart 33.
  • This has a similar function in the axially adjustable rotor part 27 as the counterpart 14 in the fixed stator part 9.
  • the counterpart 33 (FIG. 8) to the axially adjustable rotor part 27 (FIG. 7) has a counter base 34 with a central perforation 35 through which the assembled state (see FIG. 10), the adjusting tube 32 of the axially displaceable rotor part 27 passes through.
  • the counter base 34 in turn - similar to a crown with a toothed counter base finger 36. These are matched to the openings or gaps 30 remaining between the rotor base fingers 29.
  • the openings 30 in the rotor part 27 are generally closed. This means that the gap width b is zero for a rotor 26 and the total cross section of the openings for a rotor is also zero zero.
  • a pump vane part generally designated 40. It has a cup-shaped base 41.
  • FIGS. 7 and 8 in connection with FIG. 10 it can be seen well that the counter fingers 36 - seen in the circumferential direction - engage in the openings 30 between the rotor base fingers 29.
  • the remaining rotor part 27 and rotor counterpart 33 in this position can also be seen there Gap width b, from which the cross-sections of the openings 45 result on the one hand and the counter-base fingers 36 in accordance with the outline shape of the rotor base fingers 29.
  • 10 shows the fixed stator part 9 with its fastening flange 10 and the counter base 15 with the flange section 21 and, partially hidden, the counter fingers 20 of the counter base 15.
  • Both the stator part 9, 14 and the rotor 26 can be adjusted independently of each other, the cross section of the openings 45 and the cross section of the passage openings 46 both at a standstill and while the homogenizer 1 is running. Both the drive and the adjustment take place via the shaft 3, which also includes the guide and adjustment tube 32 already mentioned.
  • the shaft 3 is connected to the control head 4 (FIGS. 1 and 14) and is provided with a central bore 50 and is closed by a cap 51 at its end remote from the drive.
  • the housing 2 is divided in the area between the pump vane part 40 and a housing connecting flange 52, with which the connection to the control head 4 is established, by means of an intermediate wall 53 which is somewhat conical in cross section.
  • the shaft 3 passes through this intermediate wall 53 and corresponding shaft sealing elements 54 are also provided there.
  • an axial adjustment element 56 which, according to the double arrow Pf 4, can move an adjustment rod 57 axially back and forth within the bore 50 of the shaft 3.
  • adjusting jaws 58 are provided, which comprise an adjusting pin 59, which in turn is connected to the adjusting bolt 57.
  • the adjusting bolt has an adjusting pin 60, which with its Ends engages in the adjusting tube 32 of the axially adjustable rotor part 27.
  • the axially adjustable rotor part 27 can be adjusted such that the width of the column b between the rotor base fingers 29 and the counter-base fingers 36 and thus also the passage cross sections of the rotor part 27 change.
  • the counterpart 14 to the fixed stator part 9, i.e. the axially adjustable stator part, as already mentioned, can be adjusted by moving the flange sections 21 relative to the fastening flange 10, whereby the gap widths and accordingly the passage cross sections in the stator 9, 14 are changed in an analogous manner become.
  • Such changes are to be carried out independently of one another in the case of the stator 9, 14 and also in the rotor 26, both when the machine is at a standstill and above all while it is running.
  • the step width of the rotor 26 and / or stator 9 is infinitely variable / 14 possible, for example between zero millimeters to ten millimeters, but possibly even further. This makes it possible to adapt the homogenizing device 1 to the special requirements of the medium to be processed without having to change tools or transferring the medium to be processed from one device 1 to another device. If necessary, the change can also be made during the machining process. With such a variable rotor-stator system, costs for the storage of different rotors and stators can be reduced.
  • methods of operation can be carried out with the homogenization device 1 according to the invention, which work with the previously known machines of this type cannot be carried out or cannot be carried out in the same procedure.
  • the device 1 according to the invention is therefore also particularly suitable for finding out optimal work processes.
  • FIGS. 11 to 13 show a two-part stator 70, of which the one stator part 71, which is fixedly connected to the housing, has a blade ring 72.
  • the second stator part 73 is accommodated in the housing 2 such that it can rotate relative to the stator part 71. It has a wide stator blade ring 74.
  • 12 shows a section through the two blade rings 72 and 74, which are provided with axial slots 75 in the manner of a crown. It can be seen from the double arrow Pf 5 in FIG. 12 how the inner rotatable stator part 73 can be adjusted with the associated rotatable stator blade ring 74.
  • FIG. 13 shows a stator comparable to FIG.
  • the pin 60 engages in a link of the rotor 76, so that an axial displacement of the adjusting bolt 57 leads to a rotational movement of the inner blade ring 77 of the rotor 76.
  • the rotor 76 is likewise designed in two parts, analogously to the stator 70, and its blade rings 77 and 78 can be rotated relative to one another analogously to the illustration in FIGS. 12 and 13.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP94105215A 1993-04-15 1994-04-02 Dispositif d'homogénéisation ou similaire Withdrawn EP0620039A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9305553U DE9305553U1 (de) 1993-04-15 1993-04-15 Homogenisiervorrichtung o.dgl.
DE9305553U 1993-04-15
DE4312835 1993-04-20
DE4312835A DE4312835C2 (de) 1993-04-15 1993-04-20 Homogenisiereinrichtung oder dergleichen

Publications (1)

Publication Number Publication Date
EP0620039A1 true EP0620039A1 (fr) 1994-10-19

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ID=25925078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105215A Withdrawn EP0620039A1 (fr) 1993-04-15 1994-04-02 Dispositif d'homogénéisation ou similaire

Country Status (1)

Country Link
EP (1) EP0620039A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008622C2 (nl) * 1998-03-17 1999-09-27 Marfil Machinery B V Menginrichting en mengwerkwijze.
WO2002020144A1 (fr) * 2000-09-08 2002-03-14 Commonwealth Scientific And Industrial Research Organisation Melangeur de fluides
WO2003066203A1 (fr) * 2002-02-07 2003-08-14 Romaco Ag Frymakoruma Dispositif de dispersion
EP1679448A1 (fr) * 2005-01-06 2006-07-12 Gericke AG Dispositif pour l'élaboration de matériaux en vrac
US7690833B2 (en) 2000-09-08 2010-04-06 Commonwealth Scientific And Industrial Research Organisation Heat exchange method and apparatus utilizing chaotic advection in a flowing fluid to promote heat exchange
EP2305370A1 (fr) * 2009-09-30 2011-04-06 AZO Holding GmbH Homogénéisateur et dispositif d'homogénéisation doté d'un tel homogénéisateur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1706176A (en) * 1926-12-28 1929-03-19 Lenart Paul Mixing apparatus
FR1444273A (fr) * 1965-05-22 1966-07-01 Perfectionnements aux agitateurs-mélangeurs rotatifs à tube plongeur
US3297307A (en) * 1963-01-30 1967-01-10 Krantz H Multi-stage circulators
DE1939412A1 (de) * 1969-08-02 1971-05-13 Stehning Paul Rolf Verfahren zur Verwendung eines Reaktors und Reaktor zum Ausdampfen von Ausgangsstoffen
US5156344A (en) * 1991-01-17 1992-10-20 Tippett J P Dispenser apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1706176A (en) * 1926-12-28 1929-03-19 Lenart Paul Mixing apparatus
US3297307A (en) * 1963-01-30 1967-01-10 Krantz H Multi-stage circulators
FR1444273A (fr) * 1965-05-22 1966-07-01 Perfectionnements aux agitateurs-mélangeurs rotatifs à tube plongeur
DE1939412A1 (de) * 1969-08-02 1971-05-13 Stehning Paul Rolf Verfahren zur Verwendung eines Reaktors und Reaktor zum Ausdampfen von Ausgangsstoffen
US5156344A (en) * 1991-01-17 1992-10-20 Tippett J P Dispenser apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008622C2 (nl) * 1998-03-17 1999-09-27 Marfil Machinery B V Menginrichting en mengwerkwijze.
WO2002020144A1 (fr) * 2000-09-08 2002-03-14 Commonwealth Scientific And Industrial Research Organisation Melangeur de fluides
US7121714B2 (en) 2000-09-08 2006-10-17 Commonwealth Scientific And Industrial Research Organisation Fluid mixer utilizing viscous drag
US7690833B2 (en) 2000-09-08 2010-04-06 Commonwealth Scientific And Industrial Research Organisation Heat exchange method and apparatus utilizing chaotic advection in a flowing fluid to promote heat exchange
WO2003066203A1 (fr) * 2002-02-07 2003-08-14 Romaco Ag Frymakoruma Dispositif de dispersion
US7331540B2 (en) 2002-02-07 2008-02-19 Frymakoruma Ag Dispersing device
EP1679448A1 (fr) * 2005-01-06 2006-07-12 Gericke AG Dispositif pour l'élaboration de matériaux en vrac
US7762717B2 (en) 2005-01-06 2010-07-27 Gericke Ag Device for processing bulk materials
EP2305370A1 (fr) * 2009-09-30 2011-04-06 AZO Holding GmbH Homogénéisateur et dispositif d'homogénéisation doté d'un tel homogénéisateur

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