• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Filters for the supply of inert gas to packing machines are sterilized by passing steam and sterile air through the filters via a number of ducts, valves and governors. A simpler method for achieving the sterilization is obtained by sterilizing the filter (11) jointing with the packing machine which may be done by connecting one side of the filter in series to the circulation system of the machine for sterilization by means of chemical sterilizing agent. In this way the abovementioned arrangement is simplified considerably in that a large number of valves and ducts becomes superfluous.
    公开号:SU1632364A3
    申请号:SU874203077
    申请日:1987-08-10
    公开日:1991-02-28
    发明作者:Бенедетти Паола；Маццетто Маурицио；Каццаролли Джанмаурицио
    申请人:Тетра Дев-Ко (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a device for sterilizing a filter in a gas supply tube to a packaging machine comprising a system for circulating a chemical sterilizing agent.
    The aim of the invention is to improve the reliability of sterilization of an absolute filter with a maximum pore size of 0.2 microns.
    The drawing schematically shows the proposed device.
    A device for sterilizing a filter 1 with a maximum pore size of 0.2 µm consists of a sterilization chamber 2 with three nozzles 3,4 and 5 connected to tubes 6,7 and 8 connected to a supply and discharge system of a sterilizing agent and inert gas. The outer end of the tube 8 is connected to the gas supply system, and the inner one serves to attach the filter 1. The other two tubes 6 and 7 are configured to form a closed loop with the packaging machine and with the cavity of the film package 9 for circulating the sterilizing working agent, which is used a mixture of hydrogen peroxide with air.
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    GO Yu
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     ABOUT
    The device according to the invention can be used in various types of packaging machines for which it is necessary to have a gas, for example an inert gas, supplied to them during the process of manufacturing and filling the film package 9 (containers). The packaging machine (Fig. 1) makes soft film packages 9 (containers) by converting a bag of foam packaging material 10, which passes vertically through the machine and moves downwards, and the contents are fed through a filling tube 11. With sealing clamps ( not rolled) the pipe parts of the film packaging material 10 are pressed together with equal intervals and sealed in the transverse direction, thus producing individual film packages 9 (containers nera), filled with the required volume of content 12 and a certain volume of gas (head space 13). The packaging material 10, as well as the space in the packaging machine that is in contact with the packaging material 10 or the contents, is cleaned and sterilized before production, for example, with HOMOITH chemical sterilizing agent, usually hydrogen peroxide, which is forcibly condensed in the machine and removed with sterile hot air. The feed contents 12 are sterilized in advance, and the gas closed in the packaging containers together with the contents must be free from bacteria, not react with the contents and not affect the taste or appearance of the latter. An inert gas, most often nitrogen (N2), is commonly used for this purpose.
    The contents 12 are fed into the tube of the packaging material 10 through a filling tube 11, which can be connected to the source of the contents. On the upper CONDR of the filling pipe 11 there is a seal 14 which surrounds the filling pipe 11 and is adjacent to the inner side of the material tube. As a result, below the compaction, a CLMKNUIL is created in the tube of the packaging Maior ii ia 10, which is filled with iiiiRp of gas through the feed tubes 7 of g-m, passing through
    from Q 5 0 5 0 5 about 5
    g
    five
    seal 14 at a suitable rate in order to replace the gas that is consumed.
    The packing machine is connected, as indicated earlier, through the gas supply tube 7 to the inert gas supply system, for example, to a cylinder containing nitrogen under pressure. From a cylinder (not shown) nitrogen in gaseous form passes through the gas supply pipe 8, the regulator 15 to control the pressure, the inert gas valve 16 to the sterilization chamber 2, in which the circular or cup filter 1 is located. The filter 1 is installed in the sterilization chamber 2 such that it surrounds the opening of the gas supply tube 8 in the sterilization chamber. The internal part of the filter 1 can be connected through the inert gas valve 16 and the gas supply tube 8 to the gas source, and its opposite side through the sterilization chamber 2 on one side with the gas supply tube 7 and on the other side to the filling tube 11. Tube 7 the gas supply can be connected directly to the sterilization chamber 2, and the filling pipe 11 is connected via valves and outlets, together with the valve 17 of the headspace and pressure equalization tank 18, to the bottom of the sterilization chamber 2. Thus, the sterilization chamber 2 can be connected through the gas supply tube 7 and the filling tube 11 in series with the inner space of the packaging machine so that it becomes possible when sterilizing the sterile space of the packaging machine using a chemical sterilizing agent to circulate not only through the specified sterile space, but also through sterilization chamber 2.
    The application of the proposed device simplifies the procedure, since only one sterilization operation has to be performed, and also improves the sterilization reliability, since simultaneous sterilization of the packaging machine and the filter occurs and bacteria are prevented from entering the sterile filter into the packaging machine. Before starting production and after each replacement of the filter 1 (which is done with the inert gas valve 16 closed by opening the sterilization chamber 2), sterilization of the filter 1 and the sterilization chamber 2 is required. Filter 1 is a filter, i.e. its pore size is 0.2 µm, i which is smaller than the size of the bacterium, so only one side of the filter that faces the sterile space of the packaging machine must be cleaned. When the filters are circular or cup-shaped, the bacteria are usually on the outside, since it is on this surface that they touch during the manual installation of the filter. The sterilization operation begins when a chemical sterilizing agent, such as gaseous hydrogen peroxide, mixed with air, is forced to circulate inside the machine, i.e. together with other components passes through the filling tube 11 and the packaging material tube 10. Through the gas supply tube 7, the sterilizing agent reaches the sterilization chamber 2 and the outer side of the filter 1, then the passage once again filling the tube 11 through the pressure equalizing tank 18 and valve 17 head space (which is open) through the shown system of tubes. A sterilizing agent supplied by a pump (not shown) is sequentially circulated through the sterile system of the packaging machine as well as through sterilization chamber 2. On surfaces that have a temperature below the dew point of the mixture, hydrogen peroxide condenses into a liquid phase, i.e. in the sterile space of the packaging machine, in the connected tubes, in the sterilization chamber 2 and on the outside of the filter 1.
    A limited amount of sterilizing agent will also pass through filter 1. However, any additional passage is prevented by means of an inert gas valve 16, which is closed during the sterilization process. Condensation of the sterilizing agent occurs mainly on the outer surface of the filter 1, and ensures the death of bacteria. When the circulation of the sterilizing agent is interrupted, its residues are removed with the help of hot, sterile air, which, like the sterilizing agent, must circulate through the interior of the packaging machine through the tubes and steri chamber 2.
    five
    0
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    until the hydrogen peroxide evaporates and is removed from the system. When the circulation is interrupted, the headspace valve 17 is closed, and the inert gas valve 16 is opened so that the inert gas passes through the gas supply tube 8, the filter 1 and the gas supply tube 7 to the inside of the packaging material tube - fills the head space in each packing container.
    Since filter 1 is an absolute type filter, bacteria cannot pass along with the air flow or leak through the filter. Therefore, it is sufficient to sterilize only the side of the filter 1 that is in contact with the sterile space of the machine.
    Thus, the application of the invention allows to simplify the sterilization process, to provide increased safety, since during operation only two valves need to be controlled. The circulation of the sterilizing agent through the inside of the packaging machine and the filter provides bacteria globules in all spaces that are communicated during the production of the packaging, thus preventing bacteria from entering the packaging material, the contents and the incompletely sterilized part of the system.
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    权利要求:
    Claims (1)
    [1]
    Invention Formula
    Device for sterilizing the filter of a machine for packaging and molding products into a soft film packaging consisting of a sterilization chamber
    with three pipes to which the pipes connected to the system for supplying and discharging the sterilizing working agent and inert gas by means of valves, with the end of one
    The tube is placed inside the sterilization chamber for fitting a filter on it, characterized in that, in order to increase the sterilization reliability of an absolute filter with a maximum size of 0.2, the outer end of the tube, at the other end of which is a filter, is connected to a gas supply system, and the other two tubes are configured to form
    closed loop with a packaging machine and a film packaging cavity for circulating a sterilizing
    working agent, which is used as a mixture of census of hydrogen with air.
    类似技术:
    公开号 | 公开日 | 专利标题
    CA1182269A|1985-02-12|Aseptic filling station
    SU1632364A3|1991-02-28|Device for sterilization of filter in machine for parking food in soft film
    US3035886A|1962-05-22|Method of sterilizing
    US3899862A|1975-08-19|Sterilization of containers
    US6475435B1|2002-11-05|Apparatus and method for providing sterilization zones in an aseptic packaging sterilization tunnel
    US5258162A|1993-11-02|Method of producing a gaseous hydrogen peroxide-containing sterilization fluid
    US6209591B1|2001-04-03|Apparatus and method for providing container filling in an aseptic processing apparatus
    US3486295A|1969-12-30|Method of packaging sterile liquids
    EP0427051B1|1999-01-13|A method of producing a gaseous, hydrogen peroxide-containing sterilisation fluid
    JP6830755B2|2021-02-17|Equipment and methods for filling containers with carbonated fillings
    EP0232943A1|1987-08-19|A method and an arrangement on packing machines
    US2514027A|1950-07-04|Method of canning food products under aseptic conditions
    US4623516A|1986-11-18|Sterilizing method for an encapsulating machine
    EP0072699B1|1986-07-23|Method and system for aseptically filling a container with fluid
    US2380984A|1945-08-07|Method of canning
    US6702985B1|2004-03-09|Apparatus and method for providing container interior sterilization in an aseptic processing apparatus
    US4391080A|1983-07-05|Method for providing an inert sterile atmosphere in an aseptic packaging machine
    US6481468B1|2002-11-19|Apparatus and method for providing container filling in an aseptic processing apparatus
    US3428413A|1969-02-18|Liquid compensating apparatus for use in combination with a liquid sterilization and racking system
    US3105335A|1963-10-01|Apparatus for aseptic canning of food products
    US4502614A|1985-03-05|Sterilizing apparatus for an encapsulating machine
    JPH06171618A|1994-06-21|Method of processing and packing liquid food
    RU2696080C1|2019-07-30|Method of maintaining a sterile atmosphere in a dispensing unit
    JPH0629080B2|1994-04-20|Aseptic filling device
    US6267153B1|2001-07-31|Process for filling containers simultaneously with their sterilization
    同族专利:
    公开号 | 公开日
    DE3779015D1|1992-06-17|
    JPS6357052A|1988-03-11|
    ES2031493T3|1992-12-16|
    US4851194A|1989-07-25|
    CA1302044C|1992-06-02|
    JP2527758B2|1996-08-28|
    IT1197114B|1988-11-25|
    EP0257668B1|1992-05-13|
    EP0257668A3|1989-01-25|
    AU7734487A|1988-02-25|
    EP0257668A2|1988-03-02|
    AT76019T|1992-05-15|
    AU599132B2|1990-07-12|
    IT8621520D0|1986-08-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2246453B1|1973-10-05|1976-06-18|Altstaedter Verpack Vertrieb|
    US3893832A|1973-11-01|1975-07-08|Mead Corp|Sterile fluid system|
    US4326957A|1978-07-21|1982-04-27|Pall Corporation|Vented filter spigot for intravenous liquid administration apparatus|
    DE3437543A1|1984-10-12|1986-05-15|Fred R. Dr. 8913 Schondorf Kohlbach|METHOD AND DEVICE FOR ASEPTIC FILLING WITH CONTROL AND SECURITY SYSTEM|EP0405402A3|1989-06-26|1991-03-20|Toyo Seikan Kaisha Limited|Aseptic filling machine|
    US4989649A|1989-09-14|1991-02-05|Automatic Liquid Packaging, Inc.|Fill machine sterilization process|
    JP3099200B2|1991-07-15|2000-10-16|四国化工機株式会社|Sterilization method of hydrogen peroxide gas supply device|
    SE516643C2|2000-05-31|2002-02-05|Tetra Laval Holdings & Finance|Process and apparatus for producing a gaseous medium|
    DE10116395A1|2001-03-29|2002-10-10|Ruediger Haaga Gmbh|Process for sterilizing objects|
    US20040226888A1|2003-05-14|2004-11-18|Chandarana Dilip I.|Two stage sterilization of fluids that naturally support microbiological growth|
    JP5219083B2|2009-01-20|2013-06-26|鹿島建設株式会社|Method and apparatus for hydroponic wastewater from genetically modified plants|
    CN105768138B|2016-02-22|2017-09-19|和县伊迈炭业有限责任公司|Lily back-pressure microwave continuous drying device|
    CN105707209A|2016-02-22|2016-06-29|吉首大学|Back-pressure microwave continuous pretreatment device for Chinese chestnuts|
    CN105564730B|2016-02-22|2017-11-24|张新兴|Continous way back-pressure microwave sterilizing device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT21520/86A|IT1197114B|1986-08-25|1986-08-25|METHOD AND DEVICE FOR THE STERILLIZATION OF A FILTER|
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