EP0398992A1 - Process and device for mixing. - Google Patents
Process and device for mixing.Info
- Publication number
- EP0398992A1 EP0398992A1 EP89902946A EP89902946A EP0398992A1 EP 0398992 A1 EP0398992 A1 EP 0398992A1 EP 89902946 A EP89902946 A EP 89902946A EP 89902946 A EP89902946 A EP 89902946A EP 0398992 A1 EP0398992 A1 EP 0398992A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotation
- axis
- mixing
- container
- mixer shaft
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001788 irregular Effects 0.000 claims abstract 6
- 239000000463 material Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 9
- 238000010494 dissociation reaction Methods 0.000 abstract 1
- 230000005593 dissociations Effects 0.000 abstract 1
- 239000008240 homogeneous mixture Substances 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 6
- 238000005204 segregation Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/50—Mixers with shaking, oscillating, or vibrating mechanisms with a receptacle submitted to a combination of movements, i.e. at least one vibratory or oscillatory movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/10—Mixers with rotating receptacles with receptacles rotated about two different axes, e.g. receptacles having planetary motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/40—Parts or components, e.g. receptacles, feeding or discharging means
- B01F29/403—Disposition of the rotor axis
- B01F29/4035—Disposition of the rotor axis with a receptacle rotating around two or more axes
- B01F29/40353—Disposition of the rotor axis with a receptacle rotating around two or more axes being perpendicular axes
Definitions
- the invention relates to a method for mixing according to the preamble of claim 1 and a mixing device therefor according to the preamble of claim 6.
- the object of the present invention is therefore a method for mixing and an associated Mischvor ⁇ direction to create, at 'the faster a lot with relatively simple means compared to the prior art and more uniform complete mixing can be brought about without dead zone.
- the invention achieves a remarkable technical advance in an astonishing way.
- Exact investigations have shown that in conventional solid mixers due to the uniform or regularly recurring mixing movement with the sometimes very different particle properties which are to be mixed and which differ from one another for example in terms of their size, their shape or their density cannot produce an ideal, uniform mixture, but rather that there is always a tendency towards segregation.
- Such a regular mixing movement can cause, for example, an increase in gravity in a solid stream;
- high Froude numbers which can mean a centrifugal movement of the mix, wind sifting can also occur, etc.
- the Froude numbers are the ratio of the centrifugal force (centrifugal force) to the gravity of the mixture.
- the method according to the invention and the associated mixing device according to the invention are characterized above all by the fact that no uniform and repetitive motion sequences are used. Rather, when mixing, care is taken to ensure that the angle of the mixing container to the mixer axis changes irregularly during rotation of the mixing container about its axis of rotation or mixer shaft, i. is constantly set differently, so that a stochastic random distribution is given. In a further development, the speed, i.e. the speed of rotation and also the direction of rotation are constantly and irregularly adjusted so that a stochastic, randomly distributed control is also provided.
- the control system thus includes a random generator.
- Grinding media can also be added to the mixing vessel of the stochastically operating mixing device. This creates a stochastically controlled mill. Although different shapes are possible, spherical or cylindrical grinding media are particularly suitable. Due to the different Froude numbers, the solid is crushed both by the friction and by the impact. It ⁇ * becomes z. B. with a small Froude number, the blowing away of the fine fraction observed in vibrating ball mills before the impact of the grinding media is avoided. On the other hand, with a higher Froude number, coarse-grained regrind is broken up by impact. The stochastic control thus captures a broader grain spectrum during comminution.
- the stochastically controlled tumbling movement of the mixing container can also be used for washing machines.
- the device is also used, at least in those cases in which, as in the case of the textile parts in the washing drum, processing is to take place with a constantly changing Froude number.
- the mixing vessel is guided through the tub with corresponding stochastic control. Relative accelerations occur constantly between the textiles and the lye, which wash the dirt out of the fabric so intensively and quickly.
- a "unstable mixing tool” is already known, which is constructed in the manner of a stirrer.
- This mixer works with a rotatably mounted stirrer, on which blades are usually attached. These blades should be adjustable in their angle of attack during rotation, the size of the angle of attack being subjected to a random control.
- This randomly controlled stochastic change in the angle of attack of the vanes on the rotor similar to a propeller with rotor blades which can be changed in their angle of attack, but essentially serves only for stirring liquids. But when stirring powdery substances, the entire stirring and mixing process is comparable to that of liquids, since a fluidized flow behavior is also given when stirring substances containing powder or solid particles.
- FIG. 2 a schematic top view of the exemplary embodiment according to FIG. 2;
- Figure 3 is a schematic representation of a modification to Figure 1.
- FIG. 1 and 2 show, for example, a cylindrical mixing container 1 which is held over part of the fork suspension 5 forming the mixer shaft or axis of rotation 3 (but also a one-sided suspension for easier assembly and disassembly of the mixing container is possible).
- the mixer shaft / axis of rotation 3 is driven by a drive 7 with a stochastically different distributor of rotational speed or rotational speed, with the rotation also being reversibly stochastically distributed.
- a further drive 12 is provided in the region of the fork suspension 5 for the stochastically changed setting of the inclination angle 9.
- the electrical control and power supply lines are laid inside the shafts and require slip-ring-like contacts at the corresponding points, for example between the mixer shaft / axis of rotation 3 and the correspondingly fixed drive 7 of this axis.
- the mixer shaft / axis of rotation 3 could also be rotated by a further primary axis 13, which is angled to the mixer shaft / axis of rotation 3, in particular at a right angle, in order to achieve a further rotational movement in the sense of a third degree of freedom be, the arrangement similar to a cage can also be such that the extension of this third axis of rotation also extends the extended axis ⁇ ge ⁇ ra'de_ ⁇ J the mixer shaft / axis of rotation 3 and the container axis 6 in a common intersection, which preferably in the middle - or center of gravity of the mixing container 1 is.
- Axis 13 can be stochastic, i.e. are driven with randomly distributed speed and direction of rotation, namely via a further drive 15.
- the mixing container 1 should not be spherical or cube-shaped.
- At least one boundary side of the mixing container can be designed in the form of a closable funnel 17.
- This funnel 17 can be used when decanting the mixed material, so that segregation, as might occur when decanting the mixed material when using a separate funnel, is eliminated.
- the material hopper of the processing machines is expediently used directly as a mixing vessel. After mixing, the material hopper must be placed on the processing machine free of vibrations.
- FIGS. 1 to 3 can in principle also be used in washing machines, the mixing container 1 then forming the washing drum which is guided through the tub.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Detergent Compositions (AREA)
Abstract
Les procédés et les mélangeurs employés jusqu'à présent pour obtenir des mélanges homogènes posent, sur le plan pratique, de nombreux problèmes, dans la mesure où l'on observe constamment une tendance non négligeable à la dissociation du mélange. L'invention permet de pallier cet inconvénient en prévoyant un récipient mélangeur pouvant pivoter simultanément autour de deux axes de rotation (3, 6) au moins, avec deux degrés de liberté, de manière à améliorer la qualité du mélange. Par rapport aux techniques actuelles, on constate une amélioration surprenante et très nette du mélange, principalement dans le cas d'un entraînement stochastique, c'est-à-dire irrégulier et aléatoire, et en relation également avec le nombre de tours et le sens de rotation.The processes and mixers used hitherto for obtaining homogeneous mixtures pose, in practical terms, many problems, in so far as a non-negligible tendency to dissociation of the mixture is constantly observed. The invention overcomes this disadvantage by providing a mixing container which can pivot simultaneously around two axes of rotation (3, 6) at least, with two degrees of freedom, so as to improve the quality of the mixture. Compared to current techniques, there is a surprising and very clear improvement in the mixture, mainly in the case of a stochastic training, that is to say irregular and random, and also in relation to the number of turns and the direction of rotation.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89902946T ATE74794T1 (en) | 1988-03-09 | 1989-03-07 | METHOD OF MIXING AND RELATED MIXING DEVICE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3807658A DE3807658A1 (en) | 1988-03-09 | 1988-03-09 | THE STO MIXER |
DE3807658 | 1988-03-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0398992A1 true EP0398992A1 (en) | 1990-11-28 |
EP0398992B1 EP0398992B1 (en) | 1992-04-15 |
Family
ID=6349204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89902946A Expired - Lifetime EP0398992B1 (en) | 1988-03-09 | 1989-03-07 | Process and device for mixing |
Country Status (7)
Country | Link |
---|---|
US (1) | US5238304A (en) |
EP (1) | EP0398992B1 (en) |
JP (1) | JP2543419B2 (en) |
KR (1) | KR900700181A (en) |
AU (1) | AU3195389A (en) |
DE (2) | DE3807658A1 (en) |
WO (1) | WO1989008495A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1740135B2 (en) † | 2004-04-30 | 2022-05-04 | Kimberly-Clark Worldwide, Inc. | Absorbent garment characteristics for droop elimination |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991008045A1 (en) * | 1989-11-29 | 1991-06-13 | George Fethers & Co. Trading Pty. Ltd. | Mixing apparatus |
DE4335612C1 (en) * | 1993-08-27 | 1994-11-17 | Werner Heimbeck | Method for controlling the drive of a mixing appliance and mixing appliance for carrying out the method. |
DE9320352U1 (en) * | 1993-08-27 | 1994-06-16 | Heimbeck, Werner, 83135 Schechen | Mixing device |
DE4333129A1 (en) * | 1993-09-29 | 1995-03-30 | Angelika Boehme | Automatically mixing perfume bottle |
DE19529872C2 (en) * | 1995-08-14 | 2001-03-22 | Planung Maschinen Und Muehlenb | Free fall mixer for the simultaneous mixing of components in several, freely selectable, closed, permanently mounted or exchangeable containers |
US5719110A (en) * | 1996-08-14 | 1998-02-17 | Allergan | Contact lens care compositions with inositol phosphate components |
JPH10235177A (en) * | 1997-02-21 | 1998-09-08 | Eurotec:Kk | Method for controlling driving of mixing apparatus |
EP0935966B1 (en) * | 1998-02-16 | 2001-12-12 | Möller Feinmechanik GmbH & Co. | Method and apparatus for mixing fresh blood and anticoagulant |
ATE208014T1 (en) * | 1998-12-24 | 2001-11-15 | Oloid Ag | DRIVE FOR INVERSION KINEMATIC DEVICE |
DE50304696D1 (en) * | 2003-04-10 | 2006-09-28 | Oloid Ag | DEVICE FOR GENERATING PULSATING MOVEMENTS |
FR2861888B1 (en) * | 2003-10-29 | 2008-02-29 | Franco Belge Combustibles | PROCESS FOR MANUFACTURING NUCLEAR FUEL PELLETS |
JP4725589B2 (en) * | 2008-03-25 | 2011-07-13 | ソニー株式会社 | Composite fine particle production apparatus and production method |
FR2952312B1 (en) * | 2009-11-10 | 2011-12-02 | Jean Boquet | APPARATUS FOR VIBRATION OF TUBES CONTAINING SAMPLES |
EP2669000B1 (en) * | 2010-11-03 | 2019-05-01 | Eppendorf Ag | Mixing device with a bearing for a holder device, related mixing method and use of the mixing device |
TW201302298A (en) | 2011-06-14 | 2013-01-16 | Hiroshige Ishii | Centrifugal processing device |
JP5984130B2 (en) * | 2011-10-27 | 2016-09-06 | 株式会社ナガオシステム | Rotating stirring device and rotating stirring method |
JP6115863B2 (en) * | 2012-07-02 | 2017-04-19 | パナソニックIpマネジメント株式会社 | Stirring method and stirrer |
WO2014007037A1 (en) * | 2012-07-04 | 2014-01-09 | 株式会社シンキー | Centrifugal machine |
KR200471631Y1 (en) * | 2012-09-27 | 2014-03-07 | (주)진성 테크템 | container blander |
FI124392B (en) * | 2013-05-22 | 2014-08-15 | Promector Oy | Method for operating a SWING-type mixer and mixer |
JP2014237111A (en) * | 2013-06-10 | 2014-12-18 | Omc株式会社 | Mixing device and mixing method |
CN105177912B (en) * | 2015-09-14 | 2018-07-17 | 卢云丽 | More barrels are waved shock wash mill |
CN105300782B (en) * | 2015-10-22 | 2018-05-08 | 青岛大学附属医院 | A kind of clinical laboratory is mixed and shakes device automatically with blood |
EP3383628A4 (en) * | 2016-04-30 | 2019-08-21 | Hewlett-Packard Development Company, L.P. | Mixing powdered build material for additive manufacturing |
WO2017189018A2 (en) * | 2016-04-30 | 2017-11-02 | Hewlett-Packard Development Company, L.P. | Mixing powdered build material for additive manufacturing |
DE202017007661U1 (en) | 2016-11-10 | 2024-02-21 | Medisca Pharmaceutique Inc. | Pharmaceutical preparation system |
CN108176308B (en) * | 2018-01-22 | 2020-11-17 | 王仲奇 | Gynaecology uses washing liquid medicine mixing arrangement |
EP3581550A1 (en) * | 2018-06-13 | 2019-12-18 | Pursell Agri-Tech, LLC | Fertilizer coating method |
TW202227189A (en) * | 2020-10-09 | 2022-07-16 | 日商三菱綜合材料股份有限公司 | Rotating device, and method for manufacturing fine particles |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2297154A (en) * | 1939-01-06 | 1942-09-29 | Liquid Carbonic Corp | Beverage mixer |
US2610041A (en) * | 1946-12-20 | 1952-09-09 | Arlington Machine Works Inc | Paint mixer |
FR976266A (en) * | 1948-10-07 | 1951-03-15 | Mixer | |
US3046157A (en) * | 1958-05-07 | 1962-07-24 | Philips Corp | Method for coating the inner wall of a tube intended for electric discharge lamps with a uniform liquid layer as well as an arrangement for the application of the method |
US3018092A (en) * | 1958-06-12 | 1962-01-23 | Harold T Johnson | Paint-can shaker |
GB1249102A (en) * | 1967-07-18 | 1971-10-06 | Meadowcroft & Son Ltd W | Improvements in or relating to bottle inverting apparatus |
FR2028709A1 (en) * | 1969-01-20 | 1970-10-16 | Meci Macchine Enologiche | |
US3706443A (en) * | 1970-08-19 | 1972-12-19 | Dynatech Corp | Agitation method and means |
SU456628A1 (en) * | 1972-11-30 | 1975-01-15 | Казанский сельскохозяйственный институт им.М.Горького | Mixer |
US4004783A (en) * | 1973-01-05 | 1977-01-25 | William Wilson | Process container |
US4004784A (en) * | 1974-12-24 | 1977-01-25 | Reichhold Chemicals, Inc. | Machine for preparing orthopedic cast-making materials |
US4061019A (en) * | 1976-03-16 | 1977-12-06 | Blasetti David H | Apparatus for generating forces in a specimen |
SU651833A1 (en) * | 1976-12-17 | 1979-03-18 | Казанский Сельскохозяйственный Институт Им. М.Горького | Mixer |
US4146335A (en) * | 1978-03-20 | 1979-03-27 | General Signal Corporation | Containerized solids mixing machine |
SU803959A1 (en) * | 1978-09-22 | 1981-02-15 | Предприятие П/Я Р-6575 | Vibration mixer |
GB2045101B (en) * | 1979-03-21 | 1982-09-08 | British Nuclear Fuels Ltd | Supplying materials to a mixing chamber of a mechanical mixer |
SU895485A2 (en) * | 1979-08-31 | 1982-01-07 | Казанский Ордена "Знак Почета" Сельскохозяйственный Институт Им. М.Горького | Mixer |
US4415270A (en) * | 1982-10-18 | 1983-11-15 | Red Devil Inc. | Paint mixer container clamping device with inertially driven can rotating function |
DE3700629A1 (en) * | 1987-01-12 | 1988-07-21 | Lorenz Ing Grad Bohle | GRAVITY MIXER FOR PHARMACEUTICAL PRODUCTS |
-
1988
- 1988-03-09 DE DE3807658A patent/DE3807658A1/en not_active Withdrawn
-
1989
- 1989-03-07 EP EP89902946A patent/EP0398992B1/en not_active Expired - Lifetime
- 1989-03-07 KR KR1019890702048A patent/KR900700181A/en not_active Application Discontinuation
- 1989-03-07 WO PCT/EP1989/000232 patent/WO1989008495A1/en active IP Right Grant
- 1989-03-07 US US07/549,018 patent/US5238304A/en not_active Expired - Fee Related
- 1989-03-07 DE DE8989902946T patent/DE58901193D1/en not_active Expired - Lifetime
- 1989-03-07 JP JP1502730A patent/JP2543419B2/en not_active Expired - Lifetime
- 1989-03-07 AU AU31953/89A patent/AU3195389A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO8908495A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1740135B2 (en) † | 2004-04-30 | 2022-05-04 | Kimberly-Clark Worldwide, Inc. | Absorbent garment characteristics for droop elimination |
Also Published As
Publication number | Publication date |
---|---|
EP0398992B1 (en) | 1992-04-15 |
KR900700181A (en) | 1990-08-11 |
US5238304A (en) | 1993-08-24 |
DE3807658A1 (en) | 1989-09-21 |
JPH03503258A (en) | 1991-07-25 |
JP2543419B2 (en) | 1996-10-16 |
AU3195389A (en) | 1989-10-05 |
WO1989008495A1 (en) | 1989-09-21 |
DE58901193D1 (en) | 1992-05-21 |
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