EP3822224A1 - Machine de remplissage et procédé de remplissage de récipients avec un produit fluide - Google Patents

Machine de remplissage et procédé de remplissage de récipients avec un produit fluide Download PDF

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Publication number
EP3822224A1
EP3822224A1 EP19306470.6A EP19306470A EP3822224A1 EP 3822224 A1 EP3822224 A1 EP 3822224A1 EP 19306470 A EP19306470 A EP 19306470A EP 3822224 A1 EP3822224 A1 EP 3822224A1
Authority
EP
European Patent Office
Prior art keywords
filling
circuit
aerosol
isolation chamber
container
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Withdrawn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
EP19306470.6A
Other languages
German (de)
English (en)
Inventor
Stefano ROSINI
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.)
Sidel Participations SAS
Original Assignee
Sidel Participations SAS
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 Participations SAS filed Critical Sidel Participations SAS
Priority to EP19306470.6A priority Critical patent/EP3822224A1/fr
Publication of EP3822224A1 publication Critical patent/EP3822224A1/fr
Withdrawn legal-status Critical Current

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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
    • B67C3/06—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus using counterpressure, i.e. filling while the container is under pressure
    • B67C3/08—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus using counterpressure, i.e. filling while the container is under pressure and subsequently lowering the counterpressure
    • 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
    • B67C3/001—Cleaning of filling devices
    • 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
    • B67C2003/228—Aseptic features
    • 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
    • B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
    • B67C2003/2688—Means for filling containers in defined atmospheric conditions

Definitions

  • the present invention relates to a filling machine for filling containers with a pourable product at a pressure higher than the atmospheric pressure, preferably with a pourable food product such as a carbonated food product like sparkling water or soft drinks, etc.
  • the present invention also relates to a method for filling containers with a pourable product at a pressure higher than the atmospheric pressure, preferably with a pourable food product such as a carbonated food product like sparkling water or soft drinks, etc.
  • Filling machines typically used for filling containers, such as plastic or glass bottles, with a pourable product at a pressure higher than the atmospheric pressure are known.
  • Such filling machines essentially comprise a conveyor device, usually a rotatable conveyor device such as a carousel rotatable about a vertical axis, a reservoir containing the pourable product and a plurality of filling devices peripherally carried by the carousel, fluidly connected to the reservoir by respective ducts and conveyed by the carousel along a circular transfer path.
  • the carousel receives, in use, a succession of empty containers from an inlet conveyor, e.g. an inlet star wheel, and feeds the filled containers to an outlet conveyor, e.g. an outlet star wheel.
  • an inlet conveyor e.g. an inlet star wheel
  • an outlet conveyor e.g. an outlet star wheel
  • Each filling device essentially comprises a support element configured to receive and hold a respective container in a vertical position, and a filling valve configured to feed a predetermined amount of pourable product into such container, while the filling device advances along the transfer path due to the rotary motion imparted thereto by the carousel.
  • a filling valve of the known type essentially comprises:
  • the tubular body has a longitudinal axis, normally parallel to the carousel axis, and terminates at a lower end with an axial discharge opening configured to come into contact with a top end mouth of the respective container to be filled.
  • the filling operation is of the so-called "contact-filling" type; the fluid-tight contact between the discharge opening and the top end mouth of the container to be filled is necessary to carry out the filling operation at a pressure higher than the atmospheric pressure.
  • the filling machine further comprises two circuits formed at least partially inside the tubular body of each filling valve:
  • the pressurization circuit and the exhaust circuit are two separate and independent circuits.
  • the decompression circuit has a first end opening fluidly communicating, in use, with the container arranged in contact with the respective filling valve, and a second end opening opposite the first end opening and connected by means of a valve, to an annular decompression chamber, a single one for the entire filling machine.
  • the annular decompression chamber is fluidly connected to the external environment and is thus kept at atmospheric pressure or at a pressure lower than the pressure inside the container at the end of filling.
  • the decompression step of each container is carried out by opening, for one or more pre-set time intervals, the respective valve that controls the connection of the decompression circuit, and thus the internal environment of the respective filled container, with the decompression chamber.
  • Such decompression step is necessary to relieve the excess pressure present within each container after filling in order to prevent foaming of the pourable product.
  • filling machines of the above-mentioned type further comprise an isolation chamber positioned peripherally around the carousel, housing, at least partially, the filling devices, in particular housing at least the discharge opening of each filling valve, and configured to internally delimit, in a fluid-tight manner, a controlled atmosphere, so that the filling valves can operate in sterile and/or aseptic conditions.
  • the isolation chamber therefore defines a sterile and/or aseptic environment of the filling machine, required to guarantee the above-mentioned operating conditions.
  • the decompression circuit has an end mouth opening, through which the product aerosol in excess is discharged in the external environment. Since the mouth opening is directly connected with the external environment, germination can occur therein, which especially during long production cycles can spread along the decompression circuit and, in the worst cases, reach the isolation chamber.
  • EP-B-302067 describes a filling machine having an isolation chamber internally delimiting, in use, a controlled atmosphere and housing at least the discharge opening of each filling valve.
  • the document describes one embodiment, in which the mouth opening of the decompression circuit opens directly into the isolation chamber.
  • such configuration has the drawback that the whole aerosol in excess (containing product particles and gas) is vented into the isolation chamber; such aerosol can therefore spread all over the isolation chamber and contaminate the controlled atmosphere.
  • EP-B-302067 describes another embodiment, according to which the mouth opening opens into an exhaust duct of the venting system of the isolation chamber.
  • both embodiments present the drawback that the cleaning process of the decompression circuit, during which the circuit is flushed with cleaning fluid, is very complicated, due to the above-mentioned positioning of the mouth opening of the circuit itself.
  • This object is achieved by a method for filling containers at a pressure higher than the atmospheric pressure as claimed in claim 8.
  • number 1 indicates as a whole a filling machine for filling containers 2 with a pourable product at a pressure higher than the atmospheric pressure, preferably a pourable food product such as a carbonated food product like sparkling water or soft drinks, etc.
  • containers 2 may be plastic bottles and the pourable product is a liquid with the addition of a gas under pressure, for example CO 2 .
  • Filling machine 1 is adapted to be fed with empty containers 2 and is configured to fill these latter with the pourable product.
  • filling machine 1 comprises a rotary conveyor, preferably a carousel 3 rotatable about a vertical axis A, and a reservoir 4 arranged peripherally with respect to carousel 3 and containing, in use, the pourable product under pressure to be fed to the carousel 3 itself.
  • Filling machine 1 further comprises a plurality of filling valves 5, peripherally carried by carousel 3 and each one configured to feed a predetermined amount of pourable product to a relative container 2 during the rotation of carousel 3 about axis A.
  • filling valves 5 are conveyed by carousel 3 along an arc-shaped transfer path in respective positions radially spaced from axis A.
  • each filling valve 5 is fluidly connected to reservoir 4 by means of a circuit 6 adapted to convey the pourable product from reservoir 4 to the filling valve 5 itself.
  • filling valve 5 comprises valve means configured to control the flow of the pourable product towards the container 2 to be filled and support means apt to support such container 2 in a position, preferably vertical, below filling valve 5.
  • filling valve 5 includes a flow channel (not shown) comprising an outlet end opening (not shown) through which the pourable product is dosed, in use, and a known shutter (also not shown) movable within the flow channel to selectively allow or prevent the flow of the pourable product through the outlet opening.
  • the container 2 is supported by the above-mentioned support means, so that the top end mouth of container 2 is coupled in a fluid-tight manner with the outlet opening of filling valve 5.
  • filling valve 5 is configured to carry out a so-called “contact filling operation" on container 2.
  • Filling valve 5 further comprises a known actuator (not shown) operatively coupled with the shutter and configured to control the movement of this latter within the flow channel.
  • the shutter, and therefore filling valve 5 is controllable, i.e. movable, between an open configuration, in which filling valve 5 feeds pourable product to container 2 through the outlet opening, and a closed configuration, in which filling valve 5 interrupts the flow of pourable product towards container 2.
  • filling machine 1 further comprises:
  • pressurization-exhaust circuit 7 comprises a first annular chamber 10 and a second annular chamber 11, preferably both carried by carousel 3, and, for each filling valve 5, a duct 12 fluidly connecting the inner environment of the relative container 2 to annular chamber 10, and a duct 13 fluidly connecting the inner environment of the relative container 2 to annular chamber 11.
  • pressurized gas for example CO 2
  • container 2 is fed from annular chamber 10 to container 2 through duct 12, to build up a pressure higher than the atmospheric pressure inside the container 2 itself before filling.
  • Annular chamber 10 is fluidly connectable to annular chamber 11, in a manner known and not shown in detail.
  • pressurization circuit and exhaust circuit may be two separate and fluidly independent circuits, according to a configuration known in the art and not described in detail herein.
  • Pressurization-exhaust circuit 7 further comprises an exhaust duct 14 for venting the exhaust gas into an atmospheric drain 15.
  • exhaust duct 14 is connectable to atmospheric drain 15 by means of a valve 16.
  • Decompression circuit 8 is configured to relieve a pressure present within the filled container 2 by venting an aerosol outside the filled container 2.
  • such aerosol comprises at least pourable product particles and a gas.
  • the aerosol is formed by pourable product particles suspended in a gas containing mostly CO 2 .
  • such aerosol contains a gaseous part and a liquid part suspended in the gaseous part.
  • Decompression circuit 8 comprises an annular chamber 17 preferably carried by carousel 3 and, for each filling valve 5, a duct 18 fluidly connecting the inner environment of the relative container 2 to annular chamber 17.
  • annular chamber 17 is maintained at a pressure lower than the pressure present within container 2 at the end of the filling.
  • Pressurization and decompression are knowingly used for controlling the amount of foam within container 2 at the end of the filling and to reduce product spills from the top end mouth when container 2 is detached from filling valve 5.
  • filling machine 1 further comprises an isolation chamber 20 positioned peripherally around carousel 3, coaxially to axis A, housing, at least partially, filling valves 5, in particular housing at least the outlet opening of each filling valve 5, and configured to internally delimit, in a fluid-tight manner, an atmosphere controlled in sterile and/or aseptic conditions, so that the filling operation can occur in sterile and/or aseptic conditions.
  • an isolation chamber 20 positioned peripherally around carousel 3, coaxially to axis A, housing, at least partially, filling valves 5, in particular housing at least the outlet opening of each filling valve 5, and configured to internally delimit, in a fluid-tight manner, an atmosphere controlled in sterile and/or aseptic conditions, so that the filling operation can occur in sterile and/or aseptic conditions.
  • isolation chamber 20 defines, in use, a sterile and/or aseptic environment of filling machine 1, required to guarantee the above-mentioned operating conditions.
  • Isolation chamber 20 comprises known labyrinth-type seals 21 configured to isolate the controlled atmosphere from the external environment.
  • the controlled atmosphere is formed in a known manner by venting treated and/or filtered air inside isolation chamber 20 by means of suitable air supply and filtration units 22, only schematically shown in the appended Figures.
  • Filling machine 1 further comprises an extraction duct 23 fluidly connected to isolation chamber 20 and apt to vent the atmosphere in excess outside from isolation chamber 20 and into the external environment, so that a periodic air exchange is guaranteed within the controlled atmosphere.
  • Filling machine 1 also comprises a drain circuit 24 fluidly connected to isolation chamber 20 and configured to drain a cleaning fluid from isolation chamber 20 during a cleaning process of isolation chamber 20, preferably a periodic cleaning process.
  • decompression circuit 8 is fluidly connectable with drain circuit 24 for venting the above-mentioned aerosol to drain circuit 24, in particular into drain circuit 24.
  • decompression circuit 8 is selectively connectable to drain circuit 24 by means of a valve 25, which is fluidly interposed between drain circuit 24 and decompression circuit 8.
  • decompression circuit 8 comprises a first branch 8a fluidly connectable with drain circuit 24 through valve 25; accordingly, valve 25 is arranged upstream of the intersection between decompression circuit 8 and drain circuit 24.
  • drain circuit 24 comprises a siphon portion 26 housing, at least in use, a gas-blocking means, preferably a gas-blocking liquid.
  • Siphon portion 26 is configured to collect the pourable product particles, i.e. the liquid part, of the vented aerosol and to block the gas, i.e. the gaseous part, of the aerosol during venting of the aerosol itself from the first branch 8a to drain circuit 24.
  • the vented moist aerosol flows through the opened valve 25 and into drain circuit 24, until it reaches siphon portion 26.
  • the gas-blocking liquid housed therein collects the liquid particles, which become part of the gas-blocking liquid itself, and blocks the gas part of the aerosol.
  • drain circuit 24 comprises an atmospheric drain 27 arranged downstream of siphon portion 26 and through which the liquid in excess present within siphon portion 26 periodically outflows.
  • drain circuit 24 is further configured to feed the gas of the aerosol, which has been blocked in use by the gas-blocking liquid, from siphon portion 26 into isolation chamber 20.
  • valve 25 is closed during this latter operation, in order to prevent the gas of the aerosol to flow back to decompression circuit 8.
  • the liquid part is collected within siphon portion 26 and then periodically expelled through atmospheric drain 27, whereas the gas part is conveyed into isolation chamber 20.
  • extraction duct 23 is further configured to vent such gas part of the aerosol, which has been previously conveyed into isolation chamber 20, outside from the isolation chamber 20 itself.
  • the decompression circuit 8 and therefore the inner environment of container 2 and, hence, the pourable product to be bottled, is never in fluid contact with the external environment, thereby significantly reducing the risk of contamination.
  • drain circuit 24 further comprises:
  • decompression circuit 8 comprises a second branch 8b, branching upstream of valve 25 and configured to drain a cleaning fluid during the cleaning process of decompression circuit 8.
  • second branch 8b comprises a valve 31, arranged downstream of the branching, which is controllable to selectively allow the flow of the cleaning fluid along second branch 8b or to prevent the flow of the aerosol along second branch 8b.
  • both second branch 8b and exhaust duct 14 of pressurization-exhaust circuit 7 are fluidly connectable with one another through valve 16.
  • the resulting branch 35 downstream of the intersection between second branch 8b and exhaust duct 14 is connectable, through a valve 32, to a recirculation circuit 33 adapted to recirculate, during the relative cleaning process, the cleaning fluid into the pressurization-exhaust circuit 7 and into the decompression circuit 8.
  • the fluid connection between the resulting branch 35 and atmospheric drain 15 is selectively closable by means of a valve 34 arranged upstream of the atmospheric drain 15 itself.
  • valve 32 and valve 34 are arranged fluidly in parallel with one another.
  • filling machine 1 The operation of filling machine 1 is described hereinafter with reference to Figures 2a-2c and starting from a condition in which container 2 is filled and the decompression step is to be carried out.
  • valve 25 is open and valve 31 is closed, so that the aerosol can flow through first branch 8a and not through second branch 8b.
  • valve 30 is closed and valve 28 is open, so that the aerosol can reach siphon portion 26 through first branch 24a, while being prevented to flow through second branch 24b and towards recirculation circuit 29.
  • valve 25 closes off. In this condition, the liquid part is collected into siphon portion 26 and the gaseous part, blocked by the gas-blocking liquid of siphon portion 26 and by the closed valve 25, is fed into isolation chamber 20.
  • valve 16 and valve 34 are open, whereas valve 32 is closed.
  • Figure 2b shows a condition during which the cleaning process of isolation chamber 20 is carried out.
  • valve 25 is closed, so that the cleaning fluid is prevented to flow into decompression circuit 8
  • valve 28 is closed and valve 30 is open, so that the cleaning fluid can undergo recirculation through recirculation circuit 29.
  • valve 31 and valve 16 are also closed.
  • Figure 2c shows a condition during which the cleaning process of decompression circuit 8 and pressurization-exhaust circuit 7 is carried out.
  • valve 25 is closed, so that the cleaning fluid is prevented to flow towards drain circuit 24, and valves 16 and 31 are open, so that the cleaning fluid can flow through second branch 8b and exhaust duct 14.
  • valve 32 is open, so that the cleaning fluid can recirculate through recirculation circuit 33, and valve 34 is closed, so that the cleaning fluid is prevented to flow towards atmospheric drain 15.
  • the decompression circuit 8 and therefore the inner environment of container 2 and, hence, the pourable product to be bottled is never in fluid contact with the external environment, thereby significantly reducing the risk of contamination.
  • the above configuration allows for a more efficient cleaning and sterilization of decompression circuit 8 compared to the filling machines known from the prior art, thereby further improving the aseptic conditions of the filling machine 1 itself.
EP19306470.6A 2019-11-14 2019-11-14 Machine de remplissage et procédé de remplissage de récipients avec un produit fluide Withdrawn EP3822224A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19306470.6A EP3822224A1 (fr) 2019-11-14 2019-11-14 Machine de remplissage et procédé de remplissage de récipients avec un produit fluide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19306470.6A EP3822224A1 (fr) 2019-11-14 2019-11-14 Machine de remplissage et procédé de remplissage de récipients avec un produit fluide

Publications (1)

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EP3822224A1 true EP3822224A1 (fr) 2021-05-19

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EP19306470.6A Withdrawn EP3822224A1 (fr) 2019-11-14 2019-11-14 Machine de remplissage et procédé de remplissage de récipients avec un produit fluide

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5641194A (en) * 1979-08-30 1981-04-17 Mitsubishi Heavy Ind Ltd Filling device for liquid
JPS6121388A (ja) * 1984-06-29 1986-01-30 三菱重工業株式会社 液体充填装置
EP0302067B1 (fr) 1986-04-18 1990-07-25 Helmut König, jr. Four de cuisson
US5031673A (en) * 1988-03-24 1991-07-16 Seitz Enzinger Noll Maschinenbau Aktiengesellschaft Method and apparatus for dispensing a liquid into containers in an aseptic or sterile manner
US20100037984A1 (en) * 2008-08-12 2010-02-18 The Coca-Cola Company Aseptic filling device for carbonated beverages
EP2821362A1 (fr) * 2013-07-02 2015-01-07 Krones AG Dispositif de remplissage d'un récipient et procédé de stérilisation d'un tel dispositif
DE102014116463A1 (de) * 2014-11-11 2016-05-12 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Befüllen eines Behälters mit einem karbonisierten Füllprodukt

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5641194A (en) * 1979-08-30 1981-04-17 Mitsubishi Heavy Ind Ltd Filling device for liquid
JPS6121388A (ja) * 1984-06-29 1986-01-30 三菱重工業株式会社 液体充填装置
EP0302067B1 (fr) 1986-04-18 1990-07-25 Helmut König, jr. Four de cuisson
US5031673A (en) * 1988-03-24 1991-07-16 Seitz Enzinger Noll Maschinenbau Aktiengesellschaft Method and apparatus for dispensing a liquid into containers in an aseptic or sterile manner
US20100037984A1 (en) * 2008-08-12 2010-02-18 The Coca-Cola Company Aseptic filling device for carbonated beverages
EP2821362A1 (fr) * 2013-07-02 2015-01-07 Krones AG Dispositif de remplissage d'un récipient et procédé de stérilisation d'un tel dispositif
DE102014116463A1 (de) * 2014-11-11 2016-05-12 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Befüllen eines Behälters mit einem karbonisierten Füllprodukt

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