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WO1996011073A1 - Procede et dispositif de nettoyage et de sterilisation d'objets - Google Patents

Procede et dispositif de nettoyage et de sterilisation d'objets Download PDF

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Publication number
WO1996011073A1
WO1996011073A1 PCT/DE1995/001367 DE9501367W WO9611073A1 WO 1996011073 A1 WO1996011073 A1 WO 1996011073A1 DE 9501367 W DE9501367 W DE 9501367W WO 9611073 A1 WO9611073 A1 WO 9611073A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
bath
objects
rinsing bath
bottles
Prior art date
Application number
PCT/DE1995/001367
Other languages
German (de)
English (en)
Inventor
Sönke EWERS
Thomas Schulz
Original Assignee
E & S Automation Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by E & S Automation Gmbh filed Critical E & S Automation Gmbh
Priority to DE19581129T priority Critical patent/DE19581129D2/de
Priority to AU36496/95A priority patent/AU3649695A/en
Publication of WO1996011073A1 publication Critical patent/WO1996011073A1/fr

Links

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
    • B08B9/32—Rotating conveyors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/025—Ultrasonics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • B08B3/123—Cleaning travelling work, e.g. webs, articles on a conveyor
    • B08B3/126—Cleaning travelling work, e.g. webs, articles on a conveyor in particular moving bottles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/005—Details of cleaning machines or methods involving the use or presence of liquid or steam the liquid being ozonated

Definitions

  • the invention relates to a method and a device for cleaning and sterilizing objects, in particular empty bottles of the beverage industry.
  • the automatic cleaning of vessels usually takes place in that the vessels are passed through different baths by means of a conveyor.
  • the baths contain either lye or acid, which act as cleaning media.
  • mechanical parameters such as spraying out or treating the vessels with brushes can increase the cleaning effect.
  • Nozzles are used in particular for cleaning bottles. The inner and outer surfaces of the bottle are sprayed off with a high pressure jet. The cleaning effect can be increased by moving the nozzles or spraying at intervals.
  • the chemical composition of the cleaning agent allows a good cleaning effect to be achieved even at lower temperatures.
  • the chemicals introduced into the cleaning baths are very wastewater-polluting and thus cause high wastewater costs.
  • the vessels Since the beverage industry, in particular, places high demands on the sterility of the vessels, the vessels must be sterilized after cleaning. Sterilization is usually carried out at high temperatures. However, this is very cost-intensive and especially not possible with plastic bottles, since the bottles would be destroyed. It is known to sterilize plastic bottles using sulfur dioxide or ozone. For this purpose, the bottles to be sterilized are immersed in an immersion bath enriched with sulphurous acid or ozone and emptied upside down after the required sterilization time has elapsed, sprayed with fresh water and, after a sufficiently long dripping time, set up again and fed to the filling device.
  • the immersion bath enriched with sulphurous acid or ozone and emptied upside down after the required sterilization time has elapsed, sprayed with fresh water and, after a sufficiently long dripping time, set up again and fed to the filling device.
  • the known cleaning and sterilizing devices are therefore particularly unsuitable for cleaning PTFE bottles. Since plastic bottles do not have the surface flatness of glass bottles and can only be treated at significantly lower temperatures, a sterilized sterilization using the known methods is particularly difficult to achieve.
  • the object of the invention is to propose a method and a device for cleaning and sterilizing objects, in particular empty bottles of the beverage industry, with which it is possible to safely treat the objects to be treated, inexpensive and environmentally friendly to clean and sterilize.
  • the object is achieved according to the invention in that the objects first pass through a cleaning bath which is sonicated with ultrasound and contains a cleaning agent, and then through a rinsing bath in which the objects are sterilized with ultrasound and which is an indicator means
  • the effect of the ultrasound sonication is used on the one hand to mechanically produce a cleaning effect on the objects by blasting away dirt particles from the surface of the objects by cavitation action, and on the other hand the ultrasound sonication is used to produce a sterilizing effect on the surface of the objects , in which the special physical process of cavitation is used to destroy microorganisms and spores on the surface of the object and in the bath.
  • the elicitation of a cleaning effect by means of ultrasound is intensified in the present method through the use of preferably biodegradable cleaning agents, so that the surface of the objects can be cleaned down to the pores at a temperature of only about 30 ° C.
  • the rinsing bath following the cleaning bath serves to sterilize the objects, in particular vessels, by sonicating the cleaned vessels again with ultrasound.
  • the ultrasonic energy is used to sterilize the bath including all immersed objects. Therefore, so much energy is transferred into the rinsing bath using ultrasound
  • the cavitation in the present case arises primarily at the places where microorganisms of all kinds, such as bacteria, yeasts and other spores, adhere to the container wall. These micro-organisms are destroyed by the formation of the cavitation bubble on their surface by the high released energy and thus killed.
  • a good germicidal effect is achieved by ultrasound in the range of 20-40 kHz. Local heat development also occurs during the implosion. These local heating points have temperatures of up to 5000 K with a lifespan of just a few microseconds and destroy the organisms through the action of heat.
  • the cavitation phenomena preferably also take place in the innermost, finest cracks, pores, capillaries or the like and that, in contrast to other methods, particularly intensive disinfection takes place in these areas.
  • an indicator agent is added to the rinsing bath.
  • This indicator is chosen so that by its Degradation the redox potential in the rinsing bath changes.
  • a possible germ load in the rinsing bath can be determined immediately and can be indicated to the operating personnel by suitable devices, such as buzzer or flashing lights.
  • Hydrogen peroxide or ozone is particularly suitable as an indicator. Both agents react with existing germs and thereby reduce the redox potential in the rinsing bath. While ozone has the disadvantage that excess ozone is contained as a toxic component in the exhaust air, the addition of hydrogen peroxide as an indicator means also allows measurement of the redox potential. However, hydrogen peroxide has the advantage that when it is broken down into water, only oxygen is produced which can be released into the environment without any problems.
  • the invention is based on the object of proposing a device for carrying out the method described, with which the proposed method can be carried out in a simple manner.
  • This object is achieved in that a cleaning bath and a rinsing bath are connected to a loading and unloading device arranged outside the baths.
  • Such a device differs from the known devices for cleaning vessels in that the vessels are not, as has been customary up to now, drawn in succession through the individual baths in a container carrier by means of chain conveyors, but are removed from the container carriers belonging to the cleaning bath after they have passed through the cleaning bath are led to the rinsing bath and are inserted there into the container supports belonging to the rinsing bath. While the conventional chain systems have carried both heat energy and cleaning agents from one bathroom to the next bathroom, the loading and unloading device located outside the bathrooms is suitable for transporting the vessels from one bathroom to the other without coming into contact with the bathrooms themselves take the next bath.
  • the vessels preferably each pass through the cleaning and rinsing baths in a cell wheel.
  • the cell wheels offer an easy way to lead the vessels through the bath and then let the vessels drip out in the upper area of the cell wheel, so that no cleaning agent is carried over from one bath to the next.
  • nozzles for spraying out the vessels can easily be arranged in the upper region of the cellular wheel.
  • a further cell wheel is proposed before the cleaning bath and after the rinsing bath.
  • This cellular wheel serves on the one hand to empty the containers and on the other hand it can be used as a turning device to transfer the containers from the vertical position to the horizontal position in which they are fed to the cleaning bath and after sterilization from the horizontal position again to a vertical position attributed in which they leave the device for performing the method.
  • the compact, modular structure of the system makes it possible to expand the system with additional cellular wheels and / or additional baths in order to adapt the system to special cleaning requirements.
  • Figure 1 is a view of a bottle washer in the
  • FIG. 2 shows a section through the invention
  • Bottle cleaning system in Figure 1 along the line II-II and
  • FIG. 3 shows a section through the invention
  • Bottle cleaning system in Figure 1 along the line III-III.
  • the device 1 for cleaning and sterilizing bottles essentially consists of four drums 2, 3, 4, 5 arranged one behind the other, a loading and unloading device 6, a bottle feed device 7 and a bottle discharge device 8.
  • the bottle feed device 7 is a chain conveyor which carries the bottles 9 lined up in a line to the first drum 2 promotes.
  • a spacer wheel 10 is provided, which ensures that the bottles 9 move into the drum 1 at a distance from one another.
  • the drum 2 has a cellular wheel 11, which can hold ten bottles 9 one after the other and leads on a circular arc around the axis 12 of the drum 2.
  • the bottle battery 13, which consists of the ten bottles 9, is turned over so that the bottles 9 are transferred over a horizontal position to a vertical position in which the mouths of the bottles point downwards, in order to then move back on the circular path to come to a horizontal position.
  • the loading and unloading device 6 engages the bottle battery 13.
  • the loading and unloading device 6 pushes a bottle battery 13 of ten bottles 9 out of the drum 2 and into the drum 3 in cycles.
  • the drum 3 has a further cellular wheel 14, in which the bottle battery 13 runs downward in the circumferential direction into a cleaning bath 17, with which the drum 3 is filled to approximately half its height. After passing through the cleaning bath 17 in the drum 3, the bottle battery 13 is turned upside down so that cleaning bath residues can run out, and further led to the loading and unloading device 6.
  • the loading and unloading device 6 first leads the bottle battery 13 into a space between the drums 3 and 4 and then further into the cell wheel 15 of the drum 4, which contains a rinsing bath. This rinsing bath passes through the bottle battery 13 just like the cleaning bath just before, after which it is then pushed further into the cell wheel 16 of the drum 5 with the loading and unloading device 6.
  • FIG. 2 shows in cross section the drum 3 with the cell wheel 14.
  • the cell wheel 14 is filled in the circumferential direction with bottle batteries 13 lying close together, only a few of which are shown in FIG. 2 for explanation.
  • Each bottle battery 13 reaches the cell wheel 14 via the loading and unloading device 6.
  • the bottle battery 13 is first guided into the cleaning bath 17, which contains a biodegradable cleaning agent.
  • a plurality of ultrasonic vibrators 18 are arranged on the lower circumference of the drum 3 and transmit the ultrasonic vibrations into the cleaning bath 17 in order to support the cleaning action of the cleaning bath.
  • a control device 19 provides the power supply for the ultrasonic vibrators 18. While the bottles 9 pass through the cleaning bath 17, the biodegradable cleaning agent in combination with the ultrasonic vibrations completely cleans the bottles. After exiting the cleaning bath 17, the bottles pass through a spraying device 20, which injects targeted fresh membrane-filtered water with added cleaning agent into the bottles 9 and onto the walls of the bottles 9.
  • the spray water from the spray device 20 comes from the cleaning bath 17 and is removed from the sides and below at points 21.1 and 21.2. It then flows through a pre-filter 22 and is conveyed by means of a circulation pump 23 into a working container 24, from which it is conveyed via a pressure pump 25 into a membrane module system 26.
  • the membrane module system 26 consists of a circulation line 27 with a circulation pump 28, via which the cleaning agent is passed through a membrane module 29.
  • the filtered cleaning agent then reaches the spraying device 20 via a line 30
  • Compressed air connection 31 enables the filter membrane to be flushed at intervals.
  • a suction device 34 is provided, which sucks the steam generated in the cleaning bath and feeds it to a condenser 35. Dry air escapes via the condenser 35 and the condensate formed in the condenser is returned to the drum 3 via a line 36.
  • FIG. 3 shows the drum 4 with the rinsing bath 37, which is constructed essentially in the same way as the drum 3 with the cleaning bath 17.
  • the bottles 9 coming from the drum 3 pass through the loading and unloading device 6 into the drum 4 immersed there in the rinsing bath 37 by means of the cell wheel 15, which is set into vibration with ultrasonic vibrators 38.
  • the ultrasonic oscillators are connected to the control device 19 via a line 39.
  • the rinsing bath 37 also has a spray device 40, a fresh water inflow 41 and a suction device 42.
  • the rinsing bath contains an indicator which is broken down if the bottles are not sufficiently sterilized. With this degradation, the redox potential in the rinsing bath changes, which is reflected in the redox measurement Dishwashing liquid can be easily identified.
  • Suitable indicator agents are hydrogen peroxide (H 2 0 2 ), which is converted into water and oxygen in the case of impurities in the rinsing bath, or ozone, which decomposes to natural oxygen.
  • an ozone destroyer 43 must be provided after the suction device 42, since ozone should not be released into the atmosphere as a poison gas.
  • the ozone measurement is carried out in a water circuit 44 which leads from the lowest end of the drum 4 to the spray device 40.
  • a filter 45, the redox measuring device 46, a circulation pump 47 and a reactor vessel 48 are provided in this circuit 44.
  • the redox measuring device 46 reports the redox potential of a control device 49 which ensures that the rinsing liquid is re-sharpened depending on the redox potential.
  • the control device 49 can stop the drive of the cellular wheel 15 if the redox potential falls below a lower limit value. Depending on the design of the control device 49, it can even be provided that the cellular wheel 15 moves backwards in order to rinse bottles 9, which have been treated with contaminated rinsing liquid, in the rinsing bath or to spray them out again.
  • the method according to the invention is suitable for the sterilization of any objects.
  • the sterilization of surgical instruments should also be mentioned.
  • liquids such as fruit juice or other substances such as jam or sewage sludge.
  • the process can be used in one step as a pure sterilization process or in combination with any cleaning process. It is advantageous that the sterilization effect not only detects the objects in the liquid, but also the liquid itself.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cleaning In General (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

Selon ce procédé de nettoyage, les objets sont tout d'abord introduits dans un bain exposé à l'action des ultrasons, qui contient un nettoyant biodégradable, puis passent ensuite à travers un bain de rinçage où ils sont stérilisés par ultrasons. Un indicateur est ajouté au bain de rinçage afin d'indiquer un changement du potentiel d'oxydoréduction et contribue par conséquent à la détection de la présence d'impuretés dans le bain de rinçage et à l'établissement d'un rapport à l'aide d'un appareil enregistreur. Ce procédé s'utilise avant tout pour nettoyer et désinfecter des bouteilles en plastique.
PCT/DE1995/001367 1994-10-10 1995-10-05 Procede et dispositif de nettoyage et de sterilisation d'objets WO1996011073A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19581129T DE19581129D2 (de) 1994-10-10 1995-10-05 Verfahren und Vorrichtung zum Reinigen und Sterilisieren von Gegenständen
AU36496/95A AU3649695A (en) 1994-10-10 1995-10-05 Process and device for cleaning and sterilising objects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4436141.6 1994-10-10
DE19944436141 DE4436141A1 (de) 1994-10-10 1994-10-10 Verfahren und Vorrichtung zum Reinigen und Sterilisieren von Gegenständen

Publications (1)

Publication Number Publication Date
WO1996011073A1 true WO1996011073A1 (fr) 1996-04-18

Family

ID=6530376

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/001367 WO1996011073A1 (fr) 1994-10-10 1995-10-05 Procede et dispositif de nettoyage et de sterilisation d'objets

Country Status (3)

Country Link
AU (1) AU3649695A (fr)
DE (2) DE4436141A1 (fr)
WO (1) WO1996011073A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106964599A (zh) * 2017-05-11 2017-07-21 江苏大学 具有灌水、倒水工位的超声波洗瓶装置
CN114798584A (zh) * 2022-03-11 2022-07-29 浙江润和生物科技有限公司 一种可适应不同尺寸瓶体的立式超声波洗瓶机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012719A1 (de) * 2000-03-16 2001-10-04 Fraunhofer Ges Forschung Vorrichtung zum Reinigen und Trocknen von Werkstücken
DE102005062768A1 (de) * 2005-12-28 2007-07-12 Krones Ag Verfahren zum Entfernen von Etiketten
DE102009025158A1 (de) * 2009-06-12 2010-12-16 Herbert Kannegiesser Gmbh Verfahren zur Ermittlung reinigungsaktiver Substanzen in einer Behandlungsflüssigkeit
RU171617U1 (ru) * 2016-06-10 2017-06-07 Общество с ограниченной ответственностью "Новатор" Устройство ультразвуковой очистки
RU180676U1 (ru) * 2017-11-20 2018-06-21 Общество с ограниченной ответственностью "Новатор" Устройство ультразвуковой очистки стеклянной тары

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Publication number Priority date Publication date Assignee Title
CH421739A (de) * 1963-12-30 1966-09-30 Japan Steel Works Ltd Flaschenwaschmaschine
US3311500A (en) * 1964-04-15 1967-03-28 Nihon Seikosho And Zh Sekitan Continuous feed bottle system for bottle washing machine
DE3033043A1 (de) * 1980-09-03 1982-03-11 Silberzahn, Helmut, 6950 Mosbach Vorrichtung zum sterilisieren von flaschen
EP0239468A1 (fr) * 1986-03-17 1987-09-30 HENKEL FRANCE Société Anonyme Dispositif de régulation de la concentration d'une solution oxydante par mesure du potentiel Redox de cette solution
DE3916910A1 (de) * 1989-05-24 1990-11-29 Henkel Kgaa Einrichtung zum dosieren von desinfektionsmitteln
DE4327600A1 (de) * 1993-08-17 1995-02-23 Christine Heidrich Verfahren zur Bestimmung von Urin in Mehrwegflaschen- und Behältern

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170269B (de) * 1959-05-26 1964-05-14 Bronswerk Nv Vorrichtung zum Reinigen von Flaschen, insbesondere Milchflaschen
US3292646A (en) * 1965-03-26 1966-12-20 David W Pollock Bottle cleaning device
GB2162424B (en) * 1984-07-13 1987-12-09 Eskil Leannant Karlson Sterilizer
JPH01305956A (ja) * 1988-06-02 1989-12-11 Chiyoda Seisakusho:Kk 殺菌洗浄方法
JPH03249985A (ja) * 1990-02-27 1991-11-07 Mitsubishi Heavy Ind Ltd オゾン水殺菌方法
JPH0430854A (ja) * 1990-05-29 1992-02-03 Mitsubishi Heavy Ind Ltd オゾン水による殺菌方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH421739A (de) * 1963-12-30 1966-09-30 Japan Steel Works Ltd Flaschenwaschmaschine
US3311500A (en) * 1964-04-15 1967-03-28 Nihon Seikosho And Zh Sekitan Continuous feed bottle system for bottle washing machine
DE3033043A1 (de) * 1980-09-03 1982-03-11 Silberzahn, Helmut, 6950 Mosbach Vorrichtung zum sterilisieren von flaschen
GB2084550A (en) * 1980-09-03 1982-04-15 Sillberzahn Helmut Container sterilisation
EP0239468A1 (fr) * 1986-03-17 1987-09-30 HENKEL FRANCE Société Anonyme Dispositif de régulation de la concentration d'une solution oxydante par mesure du potentiel Redox de cette solution
DE3916910A1 (de) * 1989-05-24 1990-11-29 Henkel Kgaa Einrichtung zum dosieren von desinfektionsmitteln
DE4327600A1 (de) * 1993-08-17 1995-02-23 Christine Heidrich Verfahren zur Bestimmung von Urin in Mehrwegflaschen- und Behältern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106964599A (zh) * 2017-05-11 2017-07-21 江苏大学 具有灌水、倒水工位的超声波洗瓶装置
CN106964599B (zh) * 2017-05-11 2019-10-11 江苏大学 具有灌水、倒水工位的超声波洗瓶装置
CN114798584A (zh) * 2022-03-11 2022-07-29 浙江润和生物科技有限公司 一种可适应不同尺寸瓶体的立式超声波洗瓶机
CN114798584B (zh) * 2022-03-11 2023-11-03 浙江润和生物科技有限公司 一种可适应不同尺寸瓶体的立式超声波洗瓶机

Also Published As

Publication number Publication date
AU3649695A (en) 1996-05-02
DE19581129D2 (de) 1998-02-05
DE4436141A1 (de) 1996-04-11

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