EP0896833B1 - Dispositif d'homogénéisation des matiériaux aptes a couler - Google Patents

Dispositif d'homogénéisation des matiériaux aptes a couler Download PDF

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Publication number
EP0896833B1
EP0896833B1 EP97113845A EP97113845A EP0896833B1 EP 0896833 B1 EP0896833 B1 EP 0896833B1 EP 97113845 A EP97113845 A EP 97113845A EP 97113845 A EP97113845 A EP 97113845A EP 0896833 B1 EP0896833 B1 EP 0896833B1
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EP
European Patent Office
Prior art keywords
gap
homogenizer
drain
viscosity
mixing
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.)
Expired - Lifetime
Application number
EP97113845A
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German (de)
English (en)
Other versions
EP0896833A1 (fr
Inventor
Alwin Berents
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
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
Application filed by A Berents & Co KG GmbH filed Critical A Berents & Co KG GmbH
Priority to EP97113845A priority Critical patent/EP0896833B1/fr
Priority to DE59709636T priority patent/DE59709636D1/de
Publication of EP0896833A1 publication Critical patent/EP0896833A1/fr
Application granted granted Critical
Publication of EP0896833B1 publication Critical patent/EP0896833B1/fr
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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
    • 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
    • B01F27/272—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
    • B01F27/80—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

Definitions

  • this also depends on the degree of filling of the mixing container, up to product viscosities of approximately 5000 mPas homogenization in the mixing container. The viscosity is then still low enough to redeploy the contents of the mixer ensure and avoid that product mixture from the end of the Homogenizer immediately flows back to the inlet (so-called "Product short circuit").
  • the locking device switches (by opening) to the wrong homogenization mode just then (in the mixing container) if this is because of the very high viscosity of the mixed material is the least questionable; and the earlier, the lower the spring pressure. So would have to to achieve the goal of DE-OS 195 37 303 at all, the closing device in the second connection, between the homogenizer process and the mixing tank bottom, even at such high Pressures remain closed as they are necessary to keep the Line resistance in circulation also with highly viscous mix overcome.
  • the proposed spring loaded Sealing ring device in the ring channel the corresponding Springs are designed so strong that they are always larger Apply force than is necessary to reduce the line resistance in the To overcome circulation.
  • the invention is based on the idea of generic Homogenizers with circulation line by choice of certain Geometries for the annular gap in the homogenization operation as described in the beginning is explained, depending on the viscosity of the product set.
  • ratio L / S set a minimum value of more than 60; this concerns also geometries with gap widths S ⁇ 0.5 mm and / or gap lengths L ⁇ 30 mm.
  • the homogenizing mixer 10 shown in FIG. 1 comprises a mixing container 11, on the bottom 11a of a gyro homogenizer 14 with an inlet 12 and an outlet 13 is fixed.
  • the Drain 13 of the gyro homogenizer 14 is via a three-way valve 15 with one in the upper region of the mixing container 11 leading circulation line 16 connected.
  • the Drain 13 via the three-way valve 15 with a drain line 17th connected.
  • the outlet 13 of the gyro homogenizer 14 is through an annular gap 18 connected to the mixing container 11. Also closes directly at the outlet 13, a shut-off valve 19, which means an automatic drive 21, depending on the pressure in Process 13 is actuated; the pressure is measured by a sensor 20 detected that protrudes into the process 13. The sensor 20 controls the automatic drive 21.
  • the shut-off valve 19 can also be operated manually be operated.
  • the ratio is total gap length to the gap width according to the invention a maximum of about 160.
  • the gap width S on average about 1 mm and the gap length L in total about 70 mm.
  • FIG. 2a is the inner surface of the housing provided with ring grooves that cause the ring gap to in the direction of flow, alternately expanded and narrowed again.
  • the ratio L / S is the ratio L / S, possibly composed Individual contributions with different gap widths as defined above, around 80 ⁇ 3.
  • the geometry of the annular gap will be coordinated with the other machine parameters. Doing so the mixing tank size, the dimensions of the circulation line (if available), and the performance as well as the geometry of the homogenizer.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)

Claims (8)

  1. Dispositif pour homogénéiser des produits ayant la capacité de couler, en particulier des mayonnaises, des émulsions, des baumes, des crèmes et semblables, dont la viscosité change éventuellement pendant l'homogénéisation, comportant un récipient de mélange (11), un homogénéisateur (14) disposé au récipient (11), une arrivé (12) pour l'approvisionnement des produits du récipient de mélange (11) vers l'homogénéisateur (14) et une évacuation (13) de l'homogénéisateur (14) qui communique avec le récipient de mélange (11) par une fente annulaire (18),
    caractérisé en ce que
    la fente annulaire (18) présente une longueur de fente L et une ouverture de fente S dont le rapport L / S vaut : 60 < L / S ≤ 160.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que l'ouverture de fente S est compris entre 0,55 mm et 2,5 mm, de manière préférée entre 0,7 mm et 1,5 mm, et de manière particulièrement préférée, d'environ 1 mm.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que la longueur de fente L est compris entre 5 mm et 100 mm, en particulier entre 8 mm et 80 mm, et de manière préférée entre 20 mm et 80 mm, et manière particulièrement préférée, d'environ 70 mm.
  4. Dispositif selon l'une des revendications 1 à 3,
    caractérisé en ce que le rapport L / S est d'environ 80.
  5. Dispositif selon l'une des revendications 1 à 4,
    caractérisé en ce que la fente annulaire (18) présente au moins deux zones de longueur de fente (L1, L2, ...) d'ouverture de fente différente (S1, S2, ...), répondant à : L/S=(L1/S1 + L2/S2 + ...)
  6. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce qu'un conduit d'évacuation obturable (17) hors du dispositif pour les produits est prévu, l'évacuation (13) de l'homogénéisateur (14) pouvant être reliée avec le conduit d'évacuation (17) et l'obturation du conduit d'évacuation (17) s'effectuant par une valve de verrouillage (19) disposée en celui-ci.
  7. Dispositif selon la revendication 6,
    caractérisé en ce qu'un conduit de contournement (16) d'une extrémité est relié avec le conduit d'évacuation (17) en aval de la valve de verrouillage (19) et de l'autre extrémité avec la zone supérieure du récipient de mélange (11) et qu'entre, un distributeur à trois voies (15) ou des valves d'obturation individuelles correspondantes, sont disposés.
  8. Dispositif selon la revendication 7,
    caractérisé en ce que la valve de verrouillage (19) peut s'actionner au moyen d'un entraínement automatique (21) piloté par un capteur (20), en fonction de la viscosité du produit dans l'évacuation (13).
EP97113845A 1997-08-11 1997-08-11 Dispositif d'homogénéisation des matiériaux aptes a couler Expired - Lifetime EP0896833B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97113845A EP0896833B1 (fr) 1997-08-11 1997-08-11 Dispositif d'homogénéisation des matiériaux aptes a couler
DE59709636T DE59709636D1 (de) 1997-08-11 1997-08-11 Vorrichtung zum Homogenisieren fliessfähiger Stoffe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97113845A EP0896833B1 (fr) 1997-08-11 1997-08-11 Dispositif d'homogénéisation des matiériaux aptes a couler

Publications (2)

Publication Number Publication Date
EP0896833A1 EP0896833A1 (fr) 1999-02-17
EP0896833B1 true EP0896833B1 (fr) 2003-03-26

Family

ID=8227196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97113845A Expired - Lifetime EP0896833B1 (fr) 1997-08-11 1997-08-11 Dispositif d'homogénéisation des matiériaux aptes a couler

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EP (1) EP0896833B1 (fr)
DE (1) DE59709636D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007175A1 (de) * 2005-02-16 2006-08-17 Knape, Sandra Vorrichtung und Verfahren zum Homogenisieren
PL2242566T3 (pl) 2008-01-16 2021-05-17 Tetra Laval Holdings & Finance S.A. Mieszalnik hybrydowy
DE102008010841A1 (de) * 2008-02-25 2009-08-27 Lipp Mischtechnik Gmbh Mischvorrichtung mit an einem Mischbehälter befestigten Mischtopf

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE522673C (de) * 1925-08-26 1931-04-13 Hermann Hildebrandt Vorrichtung zum Mischen, Zerstaeuben oder Vergasen von Stoffen aller Art
GB405503A (en) * 1933-05-16 1934-02-08 Fritz Garthe Improvements in or relating to mixing vessels and the like
US3305180A (en) * 1964-01-28 1967-02-21 Noble & Wood Machine Company Process of pulping and defibering paper stock and apparatus therefor
FR2039562A5 (fr) * 1969-04-09 1971-01-15 Elf Distribution
DE2805942C2 (de) * 1978-02-13 1986-09-18 Alwin 2800 Bremen Berents Vorrichtung zum Homogenisieren fließfähiger Stoffe
US4299655A (en) * 1978-03-13 1981-11-10 Beloit Corporation Foam generator for papermaking machine
DE3009777C2 (de) * 1980-03-14 1985-09-12 Haagen & Rinau, 2800 Bremen Vorrichtung zum Mischen und Homogenisieren wenigstens zweier Medien
SE468341C (sv) * 1991-03-20 1997-04-27 Kvaerner Pulping Tech Apparat för blandning av en suspension av ett cellulosahaltigt fibermaterial och ett fluidum
EP0760254B1 (fr) * 1995-08-29 2001-03-14 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Dispositif pour l'homogénéisation de matériaux coulants

Also Published As

Publication number Publication date
DE59709636D1 (de) 2003-04-30
EP0896833A1 (fr) 1999-02-17

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