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EP2781254B1 - Fluidrührtankanordnung für eine Maschine zum Füllen von Behältern - Google Patents

Fluidrührtankanordnung für eine Maschine zum Füllen von Behältern Download PDF

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Publication number
EP2781254B1
EP2781254B1 EP13160250.0A EP13160250A EP2781254B1 EP 2781254 B1 EP2781254 B1 EP 2781254B1 EP 13160250 A EP13160250 A EP 13160250A EP 2781254 B1 EP2781254 B1 EP 2781254B1
Authority
EP
European Patent Office
Prior art keywords
tank
fluid
helical element
axis
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.)
Not-in-force
Application number
EP13160250.0A
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English (en)
French (fr)
Other versions
EP2781254A1 (de
Inventor
Stefano d'Errico
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Sidel SpA
Original Assignee
Sidel SpA
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 Sidel SpA filed Critical Sidel SpA
Priority to EP13160250.0A priority Critical patent/EP2781254B1/de
Publication of EP2781254A1 publication Critical patent/EP2781254A1/de
Application granted granted Critical
Publication of EP2781254B1 publication Critical patent/EP2781254B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details
    • 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
    • B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
    • 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
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1145—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and the rotating axis
    • B01F27/11451—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and the rotating axis forming open frameworks or cages
    • 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
    • B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
    • B01F27/921—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle
    • B01F27/9213—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle the helices having a diameter only slightly less than the diameter of the receptacle
    • 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
    • B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
    • B01F27/921—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle
    • B01F27/9214—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle with additional mixing elements other than helices; having inner and outer helices; with helices surrounding a guiding tube
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F2035/99—Heating

Definitions

  • the present invention relates to a fluid-agitating tank assembly for a machine for filling containers.
  • the present invention is used to particular advantage for fluids with particles, such as soft drinks or beverages with fruit particles.
  • these beverages have to be delivered to the containers in a hot state and therefore they have to be heated when they are stored in the tanks. Moreover, they have to be continuously moved by an agitator housed in the tank in order to avoid that the fruit particles float on the free surface of the beverage or sink to the bottom of the tank.
  • agitators are typically formed by a shaft immersed in the tank, rotatable about its axis and provided with two or more blades acting on the whole beverage.
  • This kind of agitator tends to damage the fruit particles, in particular when these particles are sacs.
  • the damaging action on the fruit particles is further aggravated when the action of the blades of the agitator is combined with heating the beverage in the tank.
  • the standard agitators may be suitable for particles naturally floating or sinking but not for both of them.
  • US 3,352,543 discloses a fluid-agitating tank assembly as defined in the preamble of claim 1.
  • a fluid-agitating tank assembly for a machine for filling containers, as claimed in claim 1.
  • Number 1 in Figures 1 and 2 indicates as a whole a fluid-agitating tank assembly for a machine 2 ( Figure 1 ) for filling containers (known per se and not shown).
  • fluid relates to any pourable product having at least a liquid fraction.
  • the present invention is used to particular advantage for fluids with particles, i.e. fluids having not only a liquid fraction but also solid parts (the particles) immersed therein, as the fluid shown in Figure 2 ; typical examples are soft drinks or beverages containing fruit particles, such as soft fruit bits, fruit fibers and fruit sacs.
  • fluid may also encompass a pourable product formed by two or more miscible liquids, which have to be continuously agitated for improving their mixing.
  • Tank assembly 1 is used to store and agitate a fluid with particles destined to be fed to machine 2 and to fill a plurality of containers handled by such machine.
  • machine 2 is of known type and basically comprises a carousel 3, mounted to rotate continuously (anticlockwise in Figure 1 ) about a vertical axis A perpendicular to the Figure 1 plane.
  • the carousel 3 receives a succession of empty containers from an input star wheel 4, which is connected to carousel 3 at a first transfer station 5 and is mounted to rotate continuously about a respective longitudinal axis B parallel to axis A.
  • the carousel 3 releases a succession of filled containers to an output star wheel 6, which is connected to carousel 3 at a second transfer station 7 and is mounted to rotate continuously about a respective longitudinal axis C parallel to axes A and B.
  • Machine 2 further comprises a plurality of filling units 8, which are equally spaced angularly about axis A, are mounted along a peripheral portion of carousel 3, and are moved by the carousel 3 along a path P extending about axis A and through stations 5 and 7.
  • the fluid is delivered in a known manner from tank assembly 1 to machine 2 through a fluid delivering circuit 9, only partially shown in Figure 1 .
  • tank assembly 1 basically comprises a tank 10 filled in use with the above-mentioned fluid with particles and having an axis D parallel to axes A, B and C, and an agitator 11 coaxially housed in the tank 10 so as to be immersed in use in the fluid and supported by the tank 10 in a rotatable manner about axis D.
  • tank 10 has a substantially cylindrical lateral wall 12 of axis D and is closed, at its opposite axial ends, by a top wall 13 and a bottom wall 14.
  • top wall 13 externally supports a motor assembly 15 for moving agitator 11 about axis D
  • bottom wall 14 is provided with a mouth 17 of axis D, which can be selectively connected to a fluid feeding circuit (known per se and not shown) or to fluid delivering circuit 9 for delivering the fluid to the machine 2.
  • both top and bottom walls 13, 14 have dome-shaped or slightly rounded-shaped configurations.
  • a heating apparatus 20 is incorporated in the tank 10 for heating the fluid contained therein.
  • heating apparatus 20 comprises a cavity 21 formed in lateral and bottom walls 12, 14, an inlet 22 for feeding a heating medium to the cavity 21 and an outlet 23 for draining the heating medium from the cavity 21; in practice, inlet 22 and outlet 23 are both connected to a circuit (known per and not shown) for circulating continuously the heating medium through the cavity 21 and allowing a heat exchange with the fluid contained in the tank 10.
  • inlet 22 is formed in lateral wall 12 in a position adjacent to top wall 13, whilst outlet 23 is formed in bottom wall 14 on one side of mouth 17.
  • agitator 11 comprises moving means 25 acting in use on the fluid contained in the tank 10 for converting unidirectional rotation of the agitator 11 about axis D into bi-directional movement of the fluid in the tank 10 towards top and bottom walls 13, 14.
  • agitator 11 comprises a central shaft 26 of axis D, from which moving means 25 transversely project cantilevered.
  • Moving means 25 comprise at least a first helical element 27 and a second helical element 28, carried by shaft 26 and counter-posed to one another for imparting the fluid opposite movements towards top and bottom walls 13, 14 of tank 10.
  • helical elements 27, 28 are wound round axis D in opposite directions by considering a given advancing direction along the axis D.
  • helical element 27 is left-handed and produces in use a substantially axial fluid flow directed towards bottom wall 14 when the agitator 11 is turned clockwise about axis D; in a completely different manner, helical element 28 is left-handed and produces in use a substantially axial fluid flow directed towards top wall 13 when the agitator 11 is turned clockwise about axis D; it is however clear that helical element 27 may be also right-handed and helical element 28 may be left-handed with opposite actions on the fluid as a result of the same direction of rotation of the agitator 11 about axis D.
  • helical element 27 has a radius larger than the radius of helical element 28 with respect to axis D; in practice, helical element 28 is arranged inside helical element 27.
  • helical element 28 is directly wound on shaft 26, whilst helical element 27 is maintained spaced from the shaft 26 by a plurality of arms 30 radially protruding from the shaft 26.
  • moving means 25 comprise a further helical element 31 wound round axis D in the same direction as helical element 27 by considering a given advancing direction along the same axis, congruent with the helical element 27 and angularly spaced from the latter about the axis D.
  • Helical elements 27 and 31 have the same radius with respect to axis D and are preferably angularly spaced about axis D of an angle of 180°.
  • helical elements 27 and 31 define one double helix 32.
  • double helix 32 and helical element 28 are configured so as to move in use the fluid in the tank 10 in opposite directions substantially parallel to axis D upon rotation of the shaft 26 in a given direction of rotation (clockwise in Figure 2 ).
  • Helical elements 27 and 31 perfectly suit the tank shape in order to optimize the heat exchange between the heating apparatus 20 and the fluid.
  • helical elements 27 and 31 are arranged at a maximum distance of 1 cm from lateral and bottom walls 12, 14.
  • each helical element 27, 28, 31 is defined by a flat metal band bent to take the helical configuration.
  • moving means 25 further comprise an anchor-like plate element 35 carried transversally by end 26b of shaft 26 and acting on the bottom of tank 10 to avoid formation of deposits and vortices when the fluid is delivered through mouth 17.
  • Plate element 35 protrudes from diametrically opposite sides of end 26b of shaft 26 and extends along a diametral plane of the shaft 26.
  • Plate element 35 is delimited by an outer U-shaped profile 36 and has a tapering configuration towards its free axial end facing bottom wall 14 of tank 10.
  • plate element 35 has a U-shaped configuration defining a cavity 37 for receiving end 26b of shaft 26 and two opposite ends 38a, 38b integrally connected to helical elements 27, 31, respectively.
  • plate element 35 extends over mouth 17 and crosswise thereto so as to divide the fluid flow exiting from the tank 10; thanks to this configuration, plate element 35 acts as an anti-vortex rotatable about axis D together with agitator 11.
  • helical elements 27, 31 impart a descendant axial movement towards bottom wall 14 to the fluid and particles in the peripheral region of the tank 10, whilst helical element 28 imparts an ascendant axial movement towards top wall 13 to the fluid and particles in the central region of the tank 10.
  • the particles contained in the fluid are forced to move downwards and upwards, so creating a continuous circulation in the tank 10.
  • the movements keep the particles in suspension in the fluid irrespective of the natural tendency of such particles to float or sink.
  • the anchor-like configuration of the plate element 35 keeps the bottom part of the tank 10 free from deposits and acts as an anti-vortex device on mouth 17 when the fluid is delivered to machine 2.
  • tank assembly 1 according to the present invention will be clear from the foregoing description.
  • the Applicant has observed that the action of helical-shaped elements 27, 28, 31 on the fruit particles is very gentle, so avoiding any possible risk of producing damages, in particular to fruit particles constituted by sacs.
  • moving means 25 comprise at least two counter-posed helical elements 27, 28, 31, it is possible to obtain a mixing action suitable for both floating or sinking particles.
  • plate element 35 also operates as a movable anti-vortex device in the mouth 17.
  • tank assembly 1 as described and illustrated herein without, however, departing from the scope of protection as defined in the accompanying claims.

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

Claims (11)

  1. Fluidmischende Tankanordnung (1) für eine Maschine (2) zum Füllen von Behältern, wobei die Tankanordnung (1) umfasst:
    - einen Tank (10), der bei Benutzung mit einem Fluid mit Teilchen gefüllt ist und aufweist einen oberen Bereich (13) und eine unteren Bereich (14), der wiederum wenigstens einen Auslass (17) zum Ausgeben des Fluids an die Maschine (2) umfasst; und
    - einen Mischer (11) der in dem Tank (10) derart aufgenommen ist, dass dieser bei Benutzung in das Fluid eingetaucht werden kann, und der durch den Tank (10) in einer um eine Achse (D) drehbaren Weise abgestützt ist;
    - wobei der Mischer (11) umfasst:
    - eine zentrale Welle (26), die koaxial zur Achse (D) ist und ein erstes Ende (26a) aufweist, dass durch den oberen Bereich (13) des Tanks (10) abgestützt ist; und
    - eine bewegliche Einrichtung (25), die bei Benutzung auf das Fluid so einwirkt, dass eine unidirektionale Rotation des Mischers (11) um die Achse (D) in eine bi-direktionale Bewegung des Fluids in dem Tank (10) in Richtung des oberen und unteren Bereichs (13, 14) umgewandelt wird; wobei die bewegliche Einrichtung (25) wenigstens ein erstes schraubenförmiges Element (27, 31) und ein zweites schraubenförmiges Element (28) umfasst, die durch die Welle (26) abgestützt werden und einander entgegengesetzt angeordnet sind, um dem Fluid entgegengesetzte Bewegungen in Richtung des oberen und unteren Bereichs (13, 14) des Tanks (10) zu verleihen;
    - wobei die Welle (26) ein zweites Ende (26b) hat, das dem unteren Bereich (40) des Tanks (10) zugewandt ist;
    - wobei die bewegliche Einrichtung (25) ferner ein Plattenelement (35) umfasst, das auf dem Boden des Tanks (10) wirkt und sich über den Auslass (17) und quer dazu erstreckt, um so als eine Anti-Wirbelbildung-Einrichtung zu wirken und die Bildung von Ablagerungen zu vermeiden;
    - dadurch gekennzeichnet, dass das Plattenelement (35) durch das zweite Ende (26b) der Welle (26) transversal getragen wird, von diametral gegenüberliegenden Seiten des zweiten Endes (26b) der Welle (26) vorsteht, sich entlang einer diametralen Ebene der Welle (26) erstreckt, durch ein U-förmiges Außenprofil (36) begrenzt ist und eine sich zuspitzende Ausbildung in Richtung seines freien axialen Endes hat.
  2. Tankanordnung nach Anspruch 1, in welcher das erste und zweite Schraubenelement (27, 31; 28) um die Achse (D) herum in entgegengesetzten Richtungen gewickelt sind, unter Berücksichtigung einer gegebenen Steigungsrichtung entlang der gleichen Achse (D).
  3. Tankanordnung nach Anspruch 1 oder 2, in welcher in Bezug zu der Achse (D) das erste schraubenförmige Element (27, 31) einen Radius, der größer ist als der Radius des zweiten schraubenförmigen Elements (28).
  4. Anordnung nach einem der vorstehenden Ansprüche, in welcher das zweite schraubenförmige Element (28) innerhalb des ersten schraubenförmigen Elements (27, 31) angeordnet ist.
  5. Tankanordnung nach einem der vorstehenden Ansprüche, in welcher das zweite schraubenförmige Element (28) auf der Welle (26) gewickelt ist, und in welcher das erste schraubenförmige Element (27, 31) durch eine Mehrzahl von Armen (30), die radial von der Welle (26) vorstehen, in Abstand zu der Welle (26) gehalten wird.
  6. Tankanordnung nach einem der vorstehenden Ansprüche, in welcher das erste und zweite schraubenförmige Element (27, 31; 28) so konfiguriert sind, dass diese bei Benutzung das Fluid in entgegengesetzte Richtungen bewegen, und zwar bei Drehung der Welle (26) in einer gegebenen Rotationsrichtung im Wesentlichen parallel zur Achse (D).
  7. Tankanordnung nach einem der vorstehenden Ansprüche, in welcher das Plattenelement (35) eine U-förmige Konfiguration hat.
  8. Tankanordnung nach einem der vorstehenden Ansprüche, in welcher die bewegliche Einrichtung (25) ferner ein drittes schraubenförmiges Element (31) umfasst, das in der gleichen Richtung wie das erste schraubenförmige Element (27) um die Achse (D) gewickelt ist, unter Berücksichtigung einer gegebenen Steigungsrichtung entlang der gleichen Achse (D), und zwar in einem Winkelabstand von dem ersten schraubenförmige Element (27) um die Achse (D) und mit dem gleichen Radius wie das erste schraubenförmige Element (27).
  9. Tankanordnung nach Anspruch 8, in welcher das erste und dritte schraubenförmige Element (27, 31) in einem Winkel von 180° Grad um die Achse (D) in Winkelabstand liegen.
  10. Tankanordnung nach Anspruch 8 oder 9, in welcher das Plattenelement (35) das zweite Ende (26b) der Welle (26) in seiner Vertiefung (37) aufnimmt und entgegengesetzte Enden (38a, 38b) aufweist, die jeweils mit dem ersten bzw. mit dem dritten schraubenförmigen Element (27, 31) einstückig verbunden sind.
  11. Tankanordnung nach einem der vorstehenden Ansprüche, in welcher der Tank (10) durch eine Wand (12, 14) begrenzt ist, die eine Heizeinrichtung (20) zum Wärmen des Fluids beinhaltet.
EP13160250.0A 2013-03-20 2013-03-20 Fluidrührtankanordnung für eine Maschine zum Füllen von Behältern Not-in-force EP2781254B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13160250.0A EP2781254B1 (de) 2013-03-20 2013-03-20 Fluidrührtankanordnung für eine Maschine zum Füllen von Behältern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13160250.0A EP2781254B1 (de) 2013-03-20 2013-03-20 Fluidrührtankanordnung für eine Maschine zum Füllen von Behältern

Publications (2)

Publication Number Publication Date
EP2781254A1 EP2781254A1 (de) 2014-09-24
EP2781254B1 true EP2781254B1 (de) 2015-07-29

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CN105381748B (zh) * 2015-12-25 2018-01-30 刘建霞 多功能绞龙搅拌器及具有多功能绞龙搅拌器的发酵罐
FR3051316B1 (fr) * 2016-05-23 2018-10-19 Seb S.A. Pale de melange pour appareil de preparation d'aliment pour animaux
CN106938181A (zh) * 2016-12-29 2017-07-11 武汉华丽环保科技有限公司 一种锥形螺带混合机
DE102017110079A1 (de) * 2017-05-10 2018-11-15 EKATO Rühr- und Mischtechnik GmbH Rührorganvorrichtung
CN107551897B (zh) * 2017-09-27 2023-11-24 广州中臣埃普科技有限公司 一种冰浆搅拌桶
CN108380120A (zh) * 2018-05-09 2018-08-10 安龙县赶场电子商务有限公司 一种高精度比例混合搅拌设备
CN110354929A (zh) * 2019-08-21 2019-10-22 绍兴市达冷肯生物科技有限公司 一种生物技术搅拌加热装置
CN115738848B (zh) * 2021-08-31 2024-11-26 中国石油化工股份有限公司 一种罐内浆体防沉装置
WO2023102720A1 (en) * 2021-12-07 2023-06-15 Tetra Laval Holdings & Finance S.A. A buffer tank, a filling machine comprising the buffer tank and a method for filling liquid food product in packages

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