EP3482821B1 - Agitateur - Google Patents

Agitateur Download PDF

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Publication number
EP3482821B1
EP3482821B1 EP17200831.0A EP17200831A EP3482821B1 EP 3482821 B1 EP3482821 B1 EP 3482821B1 EP 17200831 A EP17200831 A EP 17200831A EP 3482821 B1 EP3482821 B1 EP 3482821B1
Authority
EP
European Patent Office
Prior art keywords
agitator
agitating
elements
rotary shaft
agitator according
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.)
Active
Application number
EP17200831.0A
Other languages
German (de)
English (en)
Other versions
EP3482821A1 (fr
Inventor
Timo Weber
Christoph Kohlbrenner
Dieter Wassmer
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.)
VISCO JET RUEHRSYSTEME GmbH
Original Assignee
Visco Jet Ruehrsysteme 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 to PL17200831T priority Critical patent/PL3482821T3/pl
Application filed by Visco Jet Ruehrsysteme GmbH filed Critical Visco Jet Ruehrsysteme GmbH
Priority to HUE17200831A priority patent/HUE054132T2/hu
Priority to ES17200831T priority patent/ES2874181T3/es
Priority to EP17200831.0A priority patent/EP3482821B1/fr
Priority to DK17200831.0T priority patent/DK3482821T3/da
Priority to US16/184,600 priority patent/US11110410B2/en
Priority to RU2018139282A priority patent/RU2716679C1/ru
Priority to CN201811330110.9A priority patent/CN109758942B/zh
Publication of EP3482821A1 publication Critical patent/EP3482821A1/fr
Application granted granted Critical
Publication of EP3482821B1 publication Critical patent/EP3482821B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/85—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with two or more stirrers on separate shafts
    • 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
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/116—Stirrers shaped as cylinders, balls or rollers
    • B01F27/1162—Balls
    • 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
    • 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
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0726—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis having stirring elements connected to the stirrer shaft each by a single radial rod, other than open frameworks

Definitions

  • the invention relates to an agitator for mixing and / or homogenizing flowable media with at least two agitating elements.
  • Agitators are used in a wide variety of applications. Possible areas of application include the manufacture of paints and varnishes or the manufacture of beverages and foodstuffs. The manufacture of pharmaceutical products and cosmetics also requires the use of agitators on a regular basis, as is the case with paper and ceramics. Depending on the respective area of application, different agitator arrangements are used for mixing and / or homogenizing or suspending the respective substances. For example, barrel and container agitators are known, which are arranged in or on the respective container, or self-supporting stand agitators. Small to large-volume containers for storage or for the transport of mixtures of substances can also be equipped with a stirrer to prevent segregation during storage or transport. The agitator is matched to the material being stirred and the shape and size of the respective container.
  • Agitators usually comprise a rotating shaft that can be driven by an electric motor, by means of which one or more agitating elements connected non-rotatably to the rotating shaft are moved on a circular path. Inserted in a container with a flowable medium, the agitator elements flow around them due to their movement. In dependence of the shape of the stirring elements, their arrangement in the container and the speed at which the stirring elements are moved, establish certain flow conditions in the stirring material, which cause the stirring material to be thoroughly mixed.
  • the agitating elements known in the prior art comprise tubular bodies through which the material to be mixed flows.
  • cup stirrers have been known for a long time. Such agitators expose the material to be mixed to strong changes in the flow rate, which leads to relatively high mechanical loads on the material to be mixed. Such agitators are only suitable to a limited extent for sensitive mixes. Further developments of these agitators often have agitator elements of relatively complex construction, but adhere to the principle that the material to be mixed flows through the agitator element.
  • the agitator comprises a shaft with arms running perpendicular to the longitudinal axis of the shaft, each of which has a stirring element at its free end.
  • Each agitator consists of a tubular body which is at least partially conical. The conical shape has the effect that the flow cross-section of the tubular body is reduced in the flow direction, ie counter to the direction of rotation, and accordingly causes an increase in the flow speed of a material to be stirred.
  • the longitudinal axis of the agitator is also inclined downwards in the direction of rotation.
  • the stirring material therefore flows through the stirring elements in a laminar manner.
  • the flow inside the agitator elements is forced to reverse by dynamic pressure.
  • the resulting countercurrent should cause that even with a low power consumption of the drive, ie at low movement speeds of the agitator elements, an expansive, yet gentle agitation effect can be achieved.
  • the stirring body for a device for stirring flowable media, the design of which is intended to enable improved mixing of the material to be stirred.
  • the stirring body should be suitable for stirring or mixing highly viscous fluids or a highly viscous, flowable material to be stirred.
  • the stirring body has an outer wall and a bottom at one end of the outer wall, the bottom having at least one opening as a flow cross-section for the material to be stirred.
  • a partial flow of the material to be stirred is detected through the outer wall, which changes direction when it hits the floor. The change in direction causes the material to be stirred to be swirled, in particular to the side of and behind the stirring body.
  • the turbulence in turn ensures that the material to be stirred is thoroughly mixed.
  • From the DE 10 2006 043 498 A1 shows a dispersing machine for the production of powder mixtures with an oppositely designed rotor and stator element pair, which is shaped so that a gap-shaped working volume is formed between rotor and stator, through which the powder suspension flows when the dispersing machine is in operation. In doing so, shear forces are introduced into the powder suspension via the rotations of the rotor, which bring about thorough mixing and / or homogenization of the powder suspension.
  • the proposed dispersing machine should in particular be suitable for the production of homogeneous suspensions in hard metal and cermet manufacture.
  • the mentioned agitators are limited in terms of their applicable speed. At high speeds, the stirring effect drops drastically. Therefore, the power input is limited, which is disadvantageous, for example, when gassing, dispersing, emulsifying or drawing in powder
  • the FR 1 479 166 discloses an agitator according to the preamble of claim 1.
  • the present invention is based on the object of specifying an agitator with agitator elements which, with a simple design, enables improved power input.
  • the invention thus fundamentally breaks away from the concept of agitating elements with a flow.
  • the material to be mixed is stimulated to mix by means of an acceleration and redirection of the flow generated on the container wall.
  • overpressure i.e. pressure forces
  • the construction of the agitator according to the invention enables work very close to the wall without the risk of damaging the container wall.
  • the agitator according to the invention is easy to clean, especially since no material to be mixed can get stuck in the closed agitator elements.
  • the agitator according to the invention enables improved gassing of the product because, because of the essentially undirected flow, hardly any larger gas bubbles form in the product.
  • agitators are preferably shaped identically and of the same size.
  • All agitator elements are attached to the rotating shaft of the agitator by means of support arms.
  • An agitator for mixing and / or homogenizing or suspending flowable media with at least two agitating elements is proposed, each agitating element being connected via a support arm with a hub for connection to a drivable rotary shaft.
  • An arrangement of the agitator elements symmetrical to the axis of rotation of the agitator is preferred. It is further preferred that all agitator elements are arranged at the same distance from the axis of rotation of the agitator.
  • the support arms provided for connecting the agitator elements to the drivable rotary shaft are preferably arranged at the same angular distance from one another and in a common radial plane. This means that the support arms run radially.
  • FIG. 1 a perspective three-dimensional view of an agitator according to the invention.
  • the agitator of the Fig. 1 has three stirring elements 1, each of which is connected to a hub 2 via a support arm 3.
  • the stirring elements 1 are spherical. They are formed by spherical hollow bodies made of metal or plastic, each of which is attached to a radially outward end of a support arm 3.
  • the hub 2 is connected coaxially to the rotary shaft, not shown, of the agitator for common rotation about the axis of rotation of the agitator.
  • the agitators therefore move on a common orbit around the rotating shaft during operation.
  • the invention is not limited to those in the Fig. 1 illustrated embodiment limited.
  • the number of stirring elements 1 and their cross-sectional shape and their arrangement with respect to one another can vary.
  • the invention is not limited to the dimensions selected in the drawing. The specific dimensions result in each case as a function of the intended area of application and are in particular matched to the size of a container holding the material to be stirred.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Claims (6)

  1. Mélangeur permettant de mélanger et/ou d'homogénéiser des produits fluides, comprenant un réservoir et un arbre rotatif pouvant être entraîné par électro motorisation et au moyen duquel au moins deux organes de mélange connectés de manière fixe en rotation à l'arbre rotatif sont déplacés sur une piste circulaire, les organes de mélange étant insérés dans le réservoir dans un produit fluide de manière à être entourés par le produit en raison de leur mouvement, chaque organe de mélange (1) étant réalisé à la manière d'une boule sous forme d'un corps rond et présentant une surface extérieure fermée, caractérisé en ce que chaque organe de mélange (1) est connecté par un bras porteur (3) s'étendant radialement à un moyeu (2) pour connexion à l'arbre rotatif pouvant être entraîné, le bras porteur s'étendant radialement (3) étant disposé dans un plan radial commun.
  2. Mélangeur selon la revendication 1,
    caractérisé en ce que les organes de mélange (1) sont disposés symétriquement à même distance de l'arbre rotatif.
  3. Mélangeur selon la revendication 1 ou 2,
    caractérisé en ce que les organes de mélange (1) sont de même taille et ont la même forme.
  4. Mélangeur selon une de revendications 1 à 3,
    caractérisé en ce que la surface extérieure de chaque organe de mélange (1) ne présente pas d'arêtes ou de pointes.
  5. Mélangeur selon la revendication 4,
    caractérisé en ce que chaque organe de mélange (1) présente un rayon maximal et un rayon minimal dont le rapport est de préférence inférieur à 5, très préférentiellement inférieur à 2, ou que l'organe de mélange (1) est de forme sphérique.
  6. Mélangeur selon une des revendications 4 ou 5,
    caractérisé en ce que l'organe de mélange (1) est un corps creux, composé de préférence de métal ou de matière plastique.
EP17200831.0A 2017-11-09 2017-11-09 Agitateur Active EP3482821B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
HUE17200831A HUE054132T2 (hu) 2017-11-09 2017-11-09 Keverõelem és keverõberendezés
ES17200831T ES2874181T3 (es) 2017-11-09 2017-11-09 Agitador
EP17200831.0A EP3482821B1 (fr) 2017-11-09 2017-11-09 Agitateur
DK17200831.0T DK3482821T3 (da) 2017-11-09 2017-11-09 Omrører
PL17200831T PL3482821T3 (pl) 2017-11-09 2017-11-09 Mieszadło
US16/184,600 US11110410B2 (en) 2017-11-09 2018-11-08 Stirring element and agitator
RU2018139282A RU2716679C1 (ru) 2017-11-09 2018-11-08 Месильный орган и мешалка
CN201811330110.9A CN109758942B (zh) 2017-11-09 2018-11-09 一种搅拌器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17200831.0A EP3482821B1 (fr) 2017-11-09 2017-11-09 Agitateur

Publications (2)

Publication Number Publication Date
EP3482821A1 EP3482821A1 (fr) 2019-05-15
EP3482821B1 true EP3482821B1 (fr) 2021-02-17

Family

ID=60293881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17200831.0A Active EP3482821B1 (fr) 2017-11-09 2017-11-09 Agitateur

Country Status (8)

Country Link
US (1) US11110410B2 (fr)
EP (1) EP3482821B1 (fr)
CN (1) CN109758942B (fr)
DK (1) DK3482821T3 (fr)
ES (1) ES2874181T3 (fr)
HU (1) HUE054132T2 (fr)
PL (1) PL3482821T3 (fr)
RU (1) RU2716679C1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111888978A (zh) * 2020-06-23 2020-11-06 江苏弘盛新材料股份有限公司 一种吸湿性改良型尼龙6的原料混合装置及工艺
CN111760750A (zh) * 2020-07-09 2020-10-13 深圳妙格投资控股集团有限公司 一种led荧光粉喷涂装置
CN115119572B (zh) * 2022-08-17 2023-10-27 湖南三耳重工科技发展有限公司 一种节能液压式客土喷播机

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FR1479166A (fr) * 1966-05-11 1967-04-28 Dispositif de brassage à expansion pour mélangeurs de vernis, d'émaux, de matières plastiques et en général de toutes substances visqueuses
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CN201689003U (zh) * 2009-08-04 2010-12-29 张枝策 调土搅拌器
FR2991305B1 (fr) * 2012-06-01 2015-05-01 Assist Publ Hopitaux De Paris Dispositif pour le recueil, le traitement preanalytique, le transport et le broyage d'echantillons solides.
CN205055919U (zh) * 2015-07-15 2016-03-02 天津市欧诺仪器仪表有限公司 磁力搅拌器的磁性搅拌子
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Also Published As

Publication number Publication date
CN109758942A (zh) 2019-05-17
US20190134579A1 (en) 2019-05-09
DK3482821T3 (da) 2021-05-03
HUE054132T2 (hu) 2021-08-30
EP3482821A1 (fr) 2019-05-15
US11110410B2 (en) 2021-09-07
RU2716679C1 (ru) 2020-03-13
ES2874181T3 (es) 2021-11-04
CN109758942B (zh) 2022-05-31
PL3482821T3 (pl) 2021-07-19

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