EP4194113A1 - Procédé et dispositif pour nettoyer des récipients disposés sur leur tête - Google Patents

Procédé et dispositif pour nettoyer des récipients disposés sur leur tête Download PDF

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Publication number
EP4194113A1
EP4194113A1 EP22211661.8A EP22211661A EP4194113A1 EP 4194113 A1 EP4194113 A1 EP 4194113A1 EP 22211661 A EP22211661 A EP 22211661A EP 4194113 A1 EP4194113 A1 EP 4194113A1
Authority
EP
European Patent Office
Prior art keywords
temperature
liquor
container
lye
containers
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.)
Pending
Application number
EP22211661.8A
Other languages
German (de)
English (en)
Inventor
Jochen Forsthoevel
Michael Siegmund
Anna Zweigardt
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.)
Krones AG
Original Assignee
Krones 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 Krones AG filed Critical Krones AG
Publication of EP4194113A1 publication Critical patent/EP4194113A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • B08B9/28—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking
    • B08B9/30—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking and having conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • B08B9/28—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • B08B9/28—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking
    • B08B9/34—Arrangements of conduits or nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/083—Removing scrap from containers, e.g. removing labels

Definitions

  • the present invention relates to a method for cleaning upside down containers according to claim 1 and an apparatus for cleaning upside down containers according to claim 10.
  • the bottles are first immersed in a lye bath and, after being immersed, the inside of the bottle is sprayed with this lye.
  • the plastic and PET bottles are temperature-sensitive and excessive shrinkage can occur if the lye temperature is too high, the temperature of the lye used is limited, generally to around 60 °C. Thus, the contribution of the temperature to the cleaning performance of the bottles is limited (Sinner's circle).
  • the bottles are usually sprayed out at a temperature of around 58 °C.
  • U.S. 1,161,467 discloses a method of cleaning glass bottles in which previously hot-washed glass bottles are only squirted with cold water to cool the inside but not the outside to prevent glass breakage.
  • the technical problem to be solved is to provide a method and a device for cleaning containers arranged upside down, with which the contribution of the temperature of a cleaning agent can be used optimally.
  • the method according to the invention for cleaning containers arranged upside down for example plastic containers, for example PET containers, for example reusable PET containers or bottles, comprises the steps of spraying out the interior of a container arranged upside down with a first lye at a first temperature and subjecting the Exterior of the inverted container with second liquor at a second temperature.
  • the second temperature is lower, for example at least 5°C or 10°C lower than the first temperature.
  • first and the second lye can be the same lye, for example the same type of lye.
  • the lye can also be or include another medium suitable for cleaning the containers.
  • first and second are used here and hereinafter to distinguish and otherwise have no further restrictive meaning
  • reusable containers are cleaned in order to be able to use them again.
  • the containers are first soaked in a suds bath in order to soak labels and at least partially detach them from the containers and/or to soak and at least partially detach residues inside the containers and/or on the outside of the containers.
  • the containers can be arranged upside down in container cells of a container basket of a container cleaning machine moving in one direction.
  • a plurality of containers can be arranged next to one another in a row in a container basket, with the row extending transversely to the running direction.
  • the method can be provided in such a way that the ejection and the simultaneous loading of the containers arranged upside down takes place at least for all containers in a row.
  • the spraying and the simultaneous loading of the containers arranged upside down can also take place simultaneously for all containers in several rows.
  • the method can take place during the movement of the container basket in the running direction. It is not necessary to stop the container basket to perform the procedure.
  • the suds are heated, since foreign bodies adhering to the containers can then be better detached by spraying out and applying pressure.
  • container material for example plastic, for example PET
  • changes in the material properties must be taken into account, for example undesirable deformations, for example shrinkage in the case of blow-molded plastic bottles, PET bottles, plastic containers and/or PET containers .
  • Dried product residues and/or other dirt residues and/or mold and/or other types of bacteria can be present on the inside of the containers to be cleaned, which must be removed. Labels and/or dried glue may be on the outside of the containers to be cleaned. Dried product residues and/or other dirt residues and/or mold and/or other types of bacteria can usually be found to a lesser extent on the outside than on the inside of the container.
  • the interior of an inverted container of first liquor at a first temperature and simultaneously subjecting the exterior of the inverted container of second liquor to a second temperature, the second temperature being lower than the first temperature.
  • the first temperature may be between 50°C and 90°C, or for example the first temperature may be between 53°C and 87°C and/or the second temperature may be at least 3°C lower than the first temperature.
  • the method may further comprise the steps of collecting and collecting the first liquor used for jetting the interior of the inverted container after jetting in a collection vessel and collecting and collecting the second liquor used for jetting the exterior of the inverted vessel after jetting in the include collection container.
  • the collected first and second lye can be reused for further process steps.
  • the method may further include the step of filtering the collected first liquor and the collected second liquor prior to collection in the collection receptacle. By filtering, foreign matter in the first and second lye can be filtered out before they get into the collection container and possibly settle and/or settle there.
  • the method may further include the steps of draining at least a portion of the first and second liquor collected in the collection vessel from the collection vessel, heating a first portion of the at least a portion and thereby obtaining first liquor at the first temperature suitable for jetting the interior an inverted container, and cooling a second portion of the at least one portion and thereby obtaining second liquor at the second temperature suitable for impacting the exterior of an inverted container.
  • Mixing the first and second liquor in the sump may generally cause the liquor in the sump to deviate from the first and second temperatures such that the liquor may need to be preheated or cooled depending on intended reuse.
  • the method may include the steps of immersing the inverted container in a caustic bath with a third caustic at a third temperature, the second temperature being lower, for example at least 5°C or 10°C lower than the third temperature, and the first temperature being higher, for example at least 5°C or 10°C higher, as the third temperature and subsequently removing the upside down container from the caustic bath.
  • the third, the first and the second lye can be the same lye, for example the same type of lye, except for the temperature.
  • the third temperature can be the same as the second temperature, or the third temperature can be 5°C to 10°C higher than the second temperature.
  • the method may further include the steps of catching and collecting the first liquor used to jet the interior of the inverted container after jetting in the liquor bath and catching and collecting the second liquor used to jet the exterior of the inverted container after jetting in the include lye bath. Splashing out the interior of an upside-down container with the first liquor at the first temperature and simultaneously impinging the exterior of the upside-down container with the second liquor at the second temperature can take place in a position above the liquor bath, so that apart from the liquor bath, no other collecting tank is required.
  • the method may further include the steps of draining at least a portion of the liquor collected in the liquor bath from the liquor bath, heating a first portion of the at least a portion, and thereby obtaining first liquor at the first temperature suitable for jetting the interior of an upside-down container, cooling a second portion of the at least one portion and thereby obtaining second liquor at the second temperature suitable for impinging the exterior of an inverted container, and heating a third portion of the at least one portion and thereby obtaining of third lye for the lye bath at the third temperature.
  • the temperature of the caustic bath can be kept constant at the third temperature.
  • heating of the first portion of liquor derived from the liquor bath may be required to obtain first liquor at the first temperature and cooling of the second portion of liquor derived from the liquor bath may be required to obtain second liquor at the second temperature receive.
  • the method may further comprise the step of filtering the at least a portion of the liquor collected in the liquor bath.
  • the filtering can filter out foreign substances in the at least part of the lye collected in the lye bath, so that they do not settle and/or settle in downstream pipelines, pumps and/or nozzles.
  • the device according to the invention for cleaning containers arranged upside down for example plastic containers, for example PET containers, for example reusable PET containers or bottles, comprises a supply device with receiving locations for the containers arranged upside down, a spray device which is used for spraying out the inside of the containers arranged upside down first liquor is configured to have a first temperature; and an application device configured to simultaneously apply the exterior of the inverted containers of second liquor to a second temperature in time.
  • the second temperature is lower, for example at least 5°C or 10°C lower than the first temperature.
  • the provision device with receiving places for the containers arranged upside down can comprise a container basket with container cells of a container cleaning machine that moves in a running direction.
  • the ejection device can include one or more nozzles, for example spray nozzles.
  • the ejection device may be provided below the containers arranged upside down, for example in such a way that the containers can be moved over the ejection device.
  • the application device can comprise one or more nozzles, for example spray nozzles.
  • the application device can be provided above the containers arranged upside down, for example in such a way that the containers can be moved past under the application device.
  • the device can be designed to carry out the method described above.
  • the apparatus may further comprise a collection receptacle configured to capture and collect the first liquor used to spray the interior of the inverted containers after ejection and to capture and collect the second liquor used to impact the exterior of the inverted containers after initiation .
  • the device can further comprise a filter device, which can be designed to filter the collected first lye and the collected second lye before they are collected in the collection container.
  • a filter device which can be designed to filter the collected first lye and the collected second lye before they are collected in the collection container.
  • the device can further include a draining device, which is designed to drain at least part of the first and second lye collected in the collecting container out of the collecting container, a heater, which is designed to heat a first portion of the at least one part and thereby obtain the first lye with the first temperature, wherein the first liquor obtained is suitable for jetting the interior of an inverted container and a cooler adapted for cooling a second portion of the at least one part and thereby obtaining the second liquor at the second temperature, the second liquor is suitable for impacting the exterior of an inverted container.
  • a draining device which is designed to drain at least part of the first and second lye collected in the collecting container out of the collecting container
  • a heater which is designed to heat a first portion of the at least one part and thereby obtain the first lye with the first temperature
  • the first liquor obtained is suitable for jetting the interior of an inverted container and a cooler adapted for cooling a second portion of the at least one part and thereby obtaining the second liquor at the second temperature
  • the discharge device can comprise an outlet with a connecting pipe.
  • the heater and the cooler may each include heat exchangers.
  • the apparatus may further comprise a third lye bath at a third temperature adapted to immerse the inverted containers.
  • the liquor bath may be further configured to catch and collect the first liquor used to jet the interior of the inverted containers after ejection and to catch and collect the second liquor used to strike the exterior of the inverted containers. Even if the first and second lye enter the lye bath, the lye therein is still described as the third lye.
  • the device can further include a draining device, which is designed to drain at least part of the lye collected in the lye bath from the lye bath, a heater, which is designed to heat a first portion of the at least one part and thereby obtain the first lye at the first temperature wherein the first liquor is adapted for jetting the interior of an inverted container and a cooler adapted to cool a second portion of the at least one portion and thereby maintain the second liquor at the second temperature, the second liquor for impinging of the exterior of an inverted container, and a further heater adapted to heat a third portion of the at least one portion and thereby obtain third liquor at the third temperature.
  • a draining device which is designed to drain at least part of the lye collected in the lye bath from the lye bath
  • a heater which is designed to heat a first portion of the at least one part and thereby obtain the first lye at the first temperature
  • the first liquor is adapted for jetting the interior of an inverted container and a cooler adapted
  • the discharge device can comprise an outlet with a connecting pipe.
  • the heater and the cooler may each include heat exchangers.
  • the device can further comprise a filter device which is arranged in front of the discharge device and which can be designed to filter the at least part of the lye collected in the lye bath.
  • the first temperature may be between 50°C and 90°C, or for example the first temperature may be between 53°C and 87°C and/or the second temperature may be 5°C to 10°C lower than the first, for example Temperature, and / or the third temperature can be, for example, 5 ° C to 10 ° C higher than the first temperature.
  • the figure 1 shows a first embodiment of a device 1 for cleaning containers 2 arranged upside down.
  • the containers 2 can be PET containers, for example PET reusable containers.
  • a row of six containers 2 arranged next to one another is shown as an example.
  • the containers 2 can be arranged in a supply device (not shown) with receiving spaces for the containers 2 arranged upside down.
  • the delivery device can be a container basket with container cells or just a carrier with clamping devices, which can be arranged in a container cleaning machine and move in a running direction.
  • Several containers 2 can be arranged next to one another in a row in a container basket, with the row extending transversely to the running direction.
  • a jetting device 3 is provided below the inverted containers 2 and is adapted for jetting the interior 6 of the inverted containers 2 with a first liquor at a first temperature.
  • the ejection device 3 comprises six, for example Nozzles 5, for example spray nozzles.
  • the nozzles 5 can be supplied with the first lye for spraying out the interior 6 of the container 2 via a feed line 4 .
  • the ejection device 3 can be provided below the containers 2 arranged upside down in such a way that the containers 2 can be moved over the ejection device 3 .
  • an application device 8 is provided, which is designed to simultaneously apply a second liquor at a second temperature to the exterior 7 of the upside-down containers 2 with the spraying of the interior 6 of the upside-down containers 2 with a first lye at a first temperature .
  • the application device 8 shown comprises, for example, six nozzles 9, for example spray nozzles.
  • the nozzles 9 can be supplied via a supply line 10 with the second liquor for impinging on the exterior 7 of the container 2 .
  • the application device 8 can be provided above the containers 2 arranged upside down in such a way that the containers 2 can be moved past under the application device 8 .
  • the device 1 further comprises a collection container 11 for catching and collecting the first liquor used to spray the interior 6 of the inverted containers 2 after ejection and for collecting and collecting the second liquor used for spraying the exterior 7 of the inverted containers 2 is formed after loading.
  • the collection container 11 can be provided in a spatial area below the ejection device 3 and below the application device 8 .
  • the device 1 further includes a filter device 12 which is designed to filter the collected first lye and the collected second lye prior to collection in the collection container 11 .
  • the filter device 12 can be provided in an area between the ejection device 3 and the collection container 11 .
  • At least part of the first and second suds collected in the collection container 11 can be diverted from the collection container 11 by means of a discharge device 13 .
  • the discharge device 13 can comprise an outlet with a subsequent pipeline.
  • a first proportion of the at least one part can be fed from the discharge device 13 to a first branch 14 which leads through a heater 15 .
  • the heater 15 is designed to heat the first portion, as a result of which the first liquor can be obtained at the first temperature.
  • the heater 15 can be designed as a heat exchanger, for example.
  • the first liquor obtained in the heater 15 at the first temperature is fed to the feed line 4 and thus to the nozzles 5 of the ejection device 3 in order to be used for ejecting the interior 6 of the containers 2 .
  • a second portion of the at least one part can be fed from the discharge device 13 to a second branch 16 which leads through a cooler 17 .
  • the cooler 17 is designed to cool the second portion, as a result of which the second liquor can be obtained at the second temperature.
  • the cooler 17 can be designed as a heat exchanger, for example.
  • the second liquor obtained in the cooler 17 at the second temperature is fed to the feed line 10 and thus to the nozzles 9 of the application device 8 to be used for application to the exterior 7 of the containers 2 .
  • the second temperature is lower, for example at least 5°C or 10°C lower than the first temperature.
  • the first temperature may be between 50°C and 90°C, or for example the first temperature may be between 53°C and 87°C and/or the second temperature may be at least 3°C lower than the first temperature, for example.
  • the figure 2 shows a second embodiment of a device 18 for cleaning containers 2 arranged upside down.
  • the device 18 includes a lye bath 19 containing the third lye at a third temperature.
  • the lye bath 19 can be designed for immersing the containers 2 arranged upside down before the containers 2 are sprayed with the first lye and charged with the second lye.
  • the liquor bath 18 is also adapted to catch and collect the first liquor used to squirt the interior 6 of the inverted containers 2 after squirting and to catch and collect the second liquor used to hit the exterior 7 of the inverted containers 2 .
  • the lye bath 19 can be provided in a spatial area below the ejection device 3 and below the loading device 8 .
  • the device 18 further comprises a filter device 20 which is arranged in front of the drainage device 13 and is designed to filter the at least part of the lye collected in the lye bath which can be drained off.
  • a third proportion of the at least one part can be fed from the discharge device 13 to a third branch 21 which leads through a heater 22 .
  • the heater 22 is designed to heat the third portion, as a result of which the third liquor with the third temperature can be obtained.
  • the heater 22 can be designed as a heat exchanger, for example.
  • the third lye obtained in the heater 22 and having the third temperature is fed to the lye bath 19 .
  • the first temperature may be between 50°C and 90°C, or for example the first temperature may be between 53°C and 87°C and/or the second temperature may be 5°C to 10°C lower than the first, for example Temperature, and / or the third temperature can be, for example, 5 ° C to 10 ° C higher than the first temperature.
  • the figure 3 shows a side sectional view of a container cleaning machine 23 with two lye baths 25, 28.
  • the container carriers with the containers arranged upside down therein are transported along a transport path 24 through the container cleaning machine 23; in the illustration, the transport direction runs from right to left.
  • the containers move from a first lye bath 25 to an area in which a spray device 26 for spraying out the interior of the containers arranged upside down with the first lye at the first temperature and an application device 27 for simultaneously applying the exterior of the containers arranged upside down with the second lye the second temperature are provided.
  • the first lye and the second lye are discharged from the first lye basin 25 by means of a discharge device 29 .
  • the area with the ejection device 26 and the application device 27 is arranged above the second lye bath 28, with a deflector plate 33 being provided below the ejection device 26 and the application device 27 and above a level of the lye in the second lye bath 28.
  • the containers then enter a second lye bath 28 which is separate from the first lye bath 25 . After leaving the second lye bath 28, the containers can be moved out of the container cleaning machine 23 and fed to further process steps.
  • the first liquor used to spray the interior of the inverted containers after being sprayed is caught and collected in the first liquor bath 25 and the second liquor used to spray the exterior of the inverted containers after being sprayed in the first liquor bath 25 .
  • the deflector plate 33 can be provided below the area in which the ejection device 26 and the application device 27 are provided The second liquor used on the outside of the upside-down containers is conducted to the first liquor bath 25 after exposure.
  • Lye can be drained from the first lye bath 25 by means of the drainage device 29 .
  • the drained liquor is filtered in a filter device 30 .
  • the filtered liquor is on the one hand through a heater 31, which is used to heat the liquor fed to it and thereby receiving the first liquor at the first temperature, and passed on to the ejection device 26 and on the other hand through a cooler 32 adapted to cool the liquor fed thereto and thereby obtaining the second liquor at the second temperature, and further to the application device 27 passed.
  • a container cleaning machine can also comprise one or more than two lye vessels, in which case the containers can be sprayed out and impinged on the transport path between the first and the second lye bath and/or between the following lye baths.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
EP22211661.8A 2021-12-08 2022-12-06 Procédé et dispositif pour nettoyer des récipients disposés sur leur tête Pending EP4194113A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021132308.8A DE102021132308A1 (de) 2021-12-08 2021-12-08 Verfahren und Vorrichtung zum Reinigen von kopfüber angeordneten Behältern

Publications (1)

Publication Number Publication Date
EP4194113A1 true EP4194113A1 (fr) 2023-06-14

Family

ID=84421199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22211661.8A Pending EP4194113A1 (fr) 2021-12-08 2022-12-06 Procédé et dispositif pour nettoyer des récipients disposés sur leur tête

Country Status (3)

Country Link
EP (1) EP4194113A1 (fr)
CN (1) CN116237326A (fr)
DE (1) DE102021132308A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1161467A (en) 1911-04-10 1915-11-23 Barry Wehmiller Mach Co Method of washing bottles.
DE4008636A1 (de) * 1990-03-17 1991-09-19 Seitz Enzinger Noll Masch Spritzstation
US5441063A (en) * 1993-07-13 1995-08-15 Pepsico, Inc. High speed bottle washing machine
WO1997029859A1 (fr) * 1996-02-14 1997-08-21 Henkel-Ecolab Gmbh & Co. Ohg Procede permettant de nettoyer des bouteilles pour boissons
DE102006039599A1 (de) * 2006-08-23 2008-03-27 Khs Ag Verfahren zur Behandlung von Flaschen oder dergleichen Behälter in einer Reinigungsmaschine sowie Reinigungsmaschine
DE102008021869A1 (de) * 2008-05-02 2009-11-19 Krones Ag Flaschenreinigungsmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1161467A (en) 1911-04-10 1915-11-23 Barry Wehmiller Mach Co Method of washing bottles.
DE4008636A1 (de) * 1990-03-17 1991-09-19 Seitz Enzinger Noll Masch Spritzstation
US5441063A (en) * 1993-07-13 1995-08-15 Pepsico, Inc. High speed bottle washing machine
WO1997029859A1 (fr) * 1996-02-14 1997-08-21 Henkel-Ecolab Gmbh & Co. Ohg Procede permettant de nettoyer des bouteilles pour boissons
DE102006039599A1 (de) * 2006-08-23 2008-03-27 Khs Ag Verfahren zur Behandlung von Flaschen oder dergleichen Behälter in einer Reinigungsmaschine sowie Reinigungsmaschine
DE102008021869A1 (de) * 2008-05-02 2009-11-19 Krones Ag Flaschenreinigungsmaschine

Also Published As

Publication number Publication date
CN116237326A (zh) 2023-06-09
DE102021132308A1 (de) 2023-06-15

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