US20190016493A1 - Device and Method for Sterilization During the Filling of Preferably Liquid Foodstuffs into Packaging Containers - Google Patents

Device and Method for Sterilization During the Filling of Preferably Liquid Foodstuffs into Packaging Containers Download PDF

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Publication number
US20190016493A1
US20190016493A1 US16/066,459 US201616066459A US2019016493A1 US 20190016493 A1 US20190016493 A1 US 20190016493A1 US 201616066459 A US201616066459 A US 201616066459A US 2019016493 A1 US2019016493 A1 US 2019016493A1
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US
United States
Prior art keywords
zone
filling
air guide
sterile
elements
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.)
Abandoned
Application number
US16/066,459
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English (en)
Inventor
Rudolf Flörke
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.)
SIG Combibloc Services AG
Original Assignee
SIG Technology AG
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 SIG Technology AG filed Critical SIG Technology AG
Assigned to SIG TECHNOLOGY AG reassignment SIG TECHNOLOGY AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FLÖRKE, Rudolf
Publication of US20190016493A1 publication Critical patent/US20190016493A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02—Sterilising, e.g. of complete packages
    • B65B55/04—Sterilising wrappers or receptacles prior to, or during, packaging
    • B65B55/10—Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02—Sterilising, e.g. of complete packages
    • B65B55/025—Packaging in aseptic tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/24—Cleaning of, or removing dust from, containers, wrappers, or packaging ; Preventing of fouling

Definitions

  • the invention relates to a device and a method for sterilisation during the filling of preferably liquid foodstuffs into packaging containers with a preheating zone, a sterilisation zone, a drying zone, a filling zone and a sealing zone, which form a sterile space and are arranged immediately adjacent to one another and are sealed at the top by a cover which accommodates the necessary supply elements and supply lines.
  • H 2 O 2 i.e. hydrogen peroxide
  • An optimum effect is then achieved when the packaging units to be filled are heated in a first zone (preheating zone) in order to be able to carry out the sterilisation as quickly and efficiently as possible.
  • the packaging units which are continuously moved along are transported from the preheating zone into the downstream sterilisation zone, where they are wetted with the sterilising agent, preferably H 2 O 2 .
  • the liquid H 2 O 2 is atomised using hot compressed air or superheated steam into an H 2 O 2 aerosol, so that no larger, heavier droplets can condense on the packaging surface which could no longer simply be removed during the subsequent rinsing process.
  • the packaging units pass through a further zone, that which is known as the drying zone. In this zone, the packaging units are flushed with hot sterile air at atmospheric pressure. Subsequently, in a filling zone, the actual filling of the packaging units takes place using means that are likewise known. Finally, the filled packaging units are sealed directly after the filling process in a sealing zone.
  • the object of the invention is therefore to design and further develop the device, named at the beginning and described in more detail above, in such a way that penetration of microbes into the open packaging units passing through the treatment zones and into the sterile space formed by the treatment zones is reliably prevented. Over and above this, a simple construction of the device is desired in order, also, to minimise the cleaning and maintenance work (and costs) that is always necessary.
  • the air guide elements are arranged at least in the area of the drying zone, filling zone and sealing zone.
  • the air guide elements may have different designs depending on the zone. On the one hand there may be an adaptation to the already pre-determined size of the respective zone but on the other, a specific orientation of the laminar flow can also take place depending on the zone and the (pipe)lines located therein.
  • separating walls extending vertically from the cover in a downward direction as far as the respective air guide element are provided at the zone boundaries; these seal the zones off from one another in the upper section of the sterile space and thereby prevent a horizontal exchange of air, as a result of which the formation of a laminar flow in an even downward direction is further improved.
  • Each pre-distributor element can have a plurality of openings at least on its horizontal base in order to let through the supplied air in a downward direction into the respective sterile air chamber.
  • the pre-distributor element may for example consist of a U-shaped metal sheet.
  • a structure acting as an impact zone and not equipped with openings such as for example an impact plate, is provided in each pre-distributor element, below the supply pipes.
  • an impact plate ensures that the sterile air supplied to the pre-distributor chamber at a slight overpressure initially spreads horizontally within the pre-distributor and then is released evenly across the entire width of the device to the sterile air chamber.
  • Another embodiment of the invention provides that the openings in the air guide elements and/or the pre-distributor elements are chamfered on the inlet and/or outlet sides in order to minimise or if possible completely avoid turbulence in the sterile air upon passage through these openings.
  • all the openings in the air guide elements and/or pre-distributor elements are arranged so as to be evenly distributed. This allows particularly simple manufacture of these elements. However, it is also possible for the openings to be designed smaller or larger in particular sections, or to be arranged concentrated to a larger or smaller extent so as to take into account the prevailing geometry in the individual zones (through components etc.).
  • a further preferred embodiment of the invention provides that the air guide elements and/or pre-distributor elements are designed as perforated metal sheets. It is also possible, however, to use honeycomb sheets or similar. Preferably, the air guide elements or pre-distributor elements consist of stainless steel.
  • the air guide elements and/or pre-distributor elements may be designed as grid structures or the like.
  • the air guide elements and/or pre-distributor elements are attached to the cover so as to be detachable using retaining brackets or clasps.
  • the air guide elements and/or pre-distributor elements can be equipped with lugs or hooks which correspond to the retaining brackets or clasps.
  • the walls of the device running parallel to the direction of transport of the packaging units are designed as transparent panes and that in each pane and/or on the housing of the device a groove, running all the way round, is present which is connected to at least one of the pre-distributor elements.
  • the pre-distributor chamber produced between the cover and the pre-distributor element, which is open on both faces can perform the additional role of supplying the annular groove, running all the way around, with sterile air at slight overpressure. In this way, a barrier results which effectively prevents the penetration of microbe-containing air into the interior of the device.
  • the invention also relates to a method for sterilisation during the filling of preferably liquid foodstuffs into packaging containers, comprising the following steps:
  • the object of the invention is achieved by the packaging unit, of which there is at least one, moulded from a mouldable cut section or packaging sleeve and open at the top, being transported discontinuously or continuously through the preheating zone, the sterilisation zone, the drying zone, the filling zone and the sealing zone and in the process having applied to it, continuously, a laminar flow of sterile air that is directed evenly downwards.
  • a device according to one of claims 1 to 18 is provided.
  • the laminar sterile air flow has, at least in sections, an overpressure of 0.12 bar to 0.55 bar, preferably of 0.18 bar to 0.32 bar.
  • the aforementioned overpressure is measured within the sterile chamber for example with the aid of a Prandtl tube.
  • the packaging unit of which there is at least one, is transported at a transport speed of 0.8 m/s to 3.0 m/s, preferably at 1.2 m/s to 1.8 m/s through the zones.
  • FIG. 1 shows a cover of a device according to the invention in side view
  • FIG. 2 shows the cover from FIG. 1 , open at the top, in perspective view
  • FIG. 3 shows the preheating zone of the device, in vertical cross section, along the line III-III in FIG. 1 ,
  • FIG. 4A shows the drying zone of the device, in vertical cross section, along the line IV-IV in FIG. 1 ,
  • FIG. 4B shows the subject matter of FIG. 4A in perspective view
  • FIG. 5 shows the filling zone of the device in vertical cross section along the line V-V in FIG. 1 ,
  • FIG. 6 shows the sealing zone of the device in vertical cross section along the line VI-VI in FIG. 1 and
  • FIG. 7 shows, in schematic representation, a cover disc placed on the side of the device.
  • FIG. 1 shows a cover 1 of the device according to the invention for sterilisation during the filling of preferably liquid foodstuffs into packaging containers in side view.
  • packaging units P There are displayed, consecutively from left to right, the individual zones passed through by packaging units P to be filled, namely preheating zone A, sterilisation zone B, drying zone C, filling zone D and sealing zone E.
  • the sterile space formed by individual zones A, B, C, D, E is bounded by a housing (not shown) that goes all the way round.
  • the sterile space is, according to the invention, bounded by the cover 1 , of which only a frame 2 , going all the way round, and a cover panel 3 are discernible.
  • all the supply elements are contained within the cover 1 .
  • the ‘sterile space’ is not constructively bounded; its lower extension must however reach to below the packaging units P, that are open at the top, and is indicated in FIG. 1 with the dot-dashed line SH.
  • sterile air is now fed to the sterile space underneath the cover 1 through sterile air tubes which extend through the cover 1 and of which only sterile air nozzles 4 that protrude at the top are discernible.
  • the sterile air nozzles 4 are supplied with sterile air via hoses (not shown).
  • the supply elements comprise—in FIG. 1 from left to right—a distributor 5 for hot sterile air, an H2O 2 distributor 6 , a sterile air distributor 7 , two filling connections 8 with filling nozzles 9 arranged underneath them and a superheated steam distributor 10 .
  • the aforementioned supply elements are significantly easier to see in the perspective view in FIG. 2 in which the cover 1 is shown open at the top. Here it is also possible to see supply lines (not described in any more detail).
  • the device according to the invention serves the purpose of sterilising packaging units P that are open at the top, which are fed to the device along six parallel lines L 1 to L 6 through an outer wall 11 with, in the embodiment, six recesses 12 .
  • Preheating connections 13 are connected to corresponding preheating nozzles 14 , through which the packaging units P open at the top are flushed out with hot air or superheated steam in order to heat them, so that condensation of sterilising liquid in the interior of the packaging unit P is reliably prevented.
  • H 2 O 2 aerosol distributors 15 are arranged, of which H 2 O 2 aerosol nozzles 16 lead through the cover 1 into the interior of the sterile space, as shown in FIG. 1 .
  • the H 2 O 2 aerosol nozzles 16 reach down to just above the packaging units P.
  • the H 2 O 2 aerosol nozzles 16 end in a tunnel sheet 17 in order to minimise the unnecessary spread of hydrogen peroxide in the sterile space.
  • a first air guide element 18 can be seen which has an L-shaped cross section and, together with the underside of the cover 1 , forms a sterile chamber 19 .
  • a pre-distributor element 20 can be seen whose function is described in more detail further down.
  • the sterile chamber 19 is separated by a separating wall 21 from the subsequent filling zone D.
  • Filling zone D is also equipped with an air guide element 22 which, together with the separating wall 21 and the underside of the cover 1 , forms a sterile chamber 23 .
  • an air guide element 22 which, together with the separating wall 21 and the underside of the cover 1 , forms a sterile chamber 23 .
  • a pre-distributor element 24 in cross section can be seen; this is also described in more detail further down.
  • the sterile chamber 23 is bounded by the separating wall 25 .
  • the sealing zone E also has an air guide element 26 and a pre-distributor element 27 .
  • the precise arrangement and function of the air guide elements 18 , 22 , 26 and pre-distributor elements 20 , 24 , 27 is described below using the additional figures.
  • the laminar sterile air flow that becomes established underneath the air guide elements 18 , 22 , 26 is indicated by means of arrows.
  • FIG. 3 initially shows a vertical cross section through the device according to the invention along the line III-III in the preheating zone A in the direction of transport of the packaging units P.
  • the cover according to the invention of which only the outer frame 2 could be seen in FIGS. 1 and 2 , is closed off at the bottom by a continuous metal sheet, which in the embodiment shown—and therefore in this respect the preferred embodiment—is formed as one piece with the frame 2 . Resting on top of this a cover panel 3 can be seen which rises from outside towards the middle of the device.
  • sterile air nozzles 4 In front of the (not yet relevant in this zone) sterile air nozzles 4 one can see (in cut-away view) the already-mentioned sterile air distributor 5 , from which a number of supply lines emanate, in order to conduct the hot sterile air to the consumers.
  • FIG. 3 runs precisely through the two connections 13 provided on this side of the cover 1 , from which (connections) the three preheating nozzles 14 lead up to directly above the packaging units P, open at the top, in order to heat these with superheated steam or with hot air.
  • three tunnel sheets 17 can also be seen which run above the lines L 4 to L 6 shown in the area of the subsequent sterilisation zone D above the clear opening of the packaging units P, in order to minimise unnecessary spread of H 2 O 2 in the interior of the sterile space.
  • FIG. 3 the wall, chamfered upwards in a vertical direction, of the air guide element 18 , which constitutes the edge of the drying zone C.
  • FIG. 4A shows a vertical cross section through the drying zone C along the line IV-IV in FIG. 1 .
  • the two hot air distributors 7 can initially be seen, from which three hot air nozzles 7 ′ lead downwards up to above the mouth area of the open packaging units P.
  • the horizontal base of the air guide element 18 can be seen.
  • This is equipped with a plurality of holes, which are not described in any more detail, and preferably designed as a perforated sheet which constitutes the lower boundary of the sterile chamber 19 .
  • the pre-distributor element 20 which is designed as a U-shaped profiled metal sheet and is likewise equipped with a plurality of rows of holes, can be seen underneath the cover 1 .
  • FIG. 5 now shows a cross section along the line V-V in FIG. 1 in the area of the filling zone D.
  • the packaging units P are already filled.
  • the sterile air fed from above via the sterile air nozzles 4 initially across the pre-distributor element 24 with corresponding impact zone PZ to the air guide element 22 fills the entire sterile chamber 23 and leads through the evenly perforated base of the air guide element 22 to a “sterile air curtain” formed thereunder which is intended to prevent microbes from below coming close to the openings of the packaging units P or components in the interior of the sterile space.
  • covering sheets 28 can be seen extending in the direction of transport of the packaging units P, which are attached with hooks 29 to the separating wall 25 that extends behind this in a vertical direction.
  • FIG. 6 shows a cutaway drawing along the line VI-VI in FIG. 1 , i.e. in the area of the sealing zone E.
  • sterile air nozzles 4 enable the supply of sterile air, initially into the pre-distributor element 27 and from there—evenly distributed across the entire width of the device—into the air guide element 26 arranged thereunder.
  • the air guide element 26 ensures that the hot sterile air is directed downwards and results in a laminar flow.
  • the sealing equipment itself is not shown; but sealed packaging units P′ can already be seen here.
  • the walls of the device running parallel to the direction of transport of the packaging units P whose housing is displayed here schematically as only rectangle 30 , are designed as—preferably transparent—panes 31 and that in each pane 31 and/or on the housing 30 of the device a groove 32 running all the way around is present which is connected to at least one pre-distributor element 20 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
US16/066,459 2015-12-28 2016-12-05 Device and Method for Sterilization During the Filling of Preferably Liquid Foodstuffs into Packaging Containers Abandoned US20190016493A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015122876.9A DE102015122876A1 (de) 2015-12-28 2015-12-28 Vorrichtung und Verfahren zum Sterilisieren bei der Abfüllung vorzugsweise flüssiger Lebensmittel in Packungsbehälter
DE102015122876.9 2015-12-28
PCT/EP2016/079772 WO2017114640A1 (fr) 2015-12-28 2016-12-05 Dispositif et procédé de stérilisation lors du versement d'aliments de préférence liquides dans des récipients d'emballage

Publications (1)

Publication Number Publication Date
US20190016493A1 true US20190016493A1 (en) 2019-01-17

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US16/066,459 Abandoned US20190016493A1 (en) 2015-12-28 2016-12-05 Device and Method for Sterilization During the Filling of Preferably Liquid Foodstuffs into Packaging Containers

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US (1) US20190016493A1 (fr)
EP (1) EP3397561A1 (fr)
JP (1) JP2019501086A (fr)
CN (1) CN108473220A (fr)
DE (1) DE102015122876A1 (fr)
WO (1) WO2017114640A1 (fr)

Cited By (1)

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US20220380078A1 (en) * 2019-10-04 2022-12-01 Tetra Laval Holdings & Finance S.A. A particle removal device for a filling machine

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CN110342032A (zh) * 2019-06-10 2019-10-18 上海易研机械设备有限公司 一种应用于无菌灌装机的消毒系统
DE102021121143A1 (de) 2021-08-13 2023-02-16 Sig Technology Ag Vorrichtung und Verfahren zur Herstellung gefüllter Karton/Kunststoff-Verbundpackungen
DE102021121144A1 (de) 2021-08-13 2023-02-16 Sig Technology Ag Vorrichtung und Verfahren zur Herstellung gefüllter Karton/Kunststoff-Verbundpackungen
EP4335764A1 (fr) * 2022-09-07 2024-03-13 Elopak Asa Machine de remplissage comprenant un système d'écoulement d'air
EP4335763A1 (fr) * 2022-09-07 2024-03-13 Elopak Asa Machine de remplissage comprenant un système d'écoulement d'air
EP4335761A1 (fr) * 2022-09-07 2024-03-13 Elopak Asa Machine de remplissage comprenant un système d'écoulement d'air
DE102022130513A1 (de) * 2022-11-17 2024-05-23 Ampack Gmbh Dosiervorrichtung und Verfahren zu einem Dosieren von flüssigen oder pastösen Produkten, insbesondere Lebensmitteln, sowie Abfüllanlage mit einer derartigen Dosiervorrichtung

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Also Published As

Publication number Publication date
WO2017114640A1 (fr) 2017-07-06
EP3397561A1 (fr) 2018-11-07
DE102015122876A1 (de) 2017-06-29
JP2019501086A (ja) 2019-01-17
CN108473220A (zh) 2018-08-31

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