EP2006035A2 - Procédé et dispositif destinés à stériliser au moins un équipement de travail - Google Patents

Procédé et dispositif destinés à stériliser au moins un équipement de travail Download PDF

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Publication number
EP2006035A2
EP2006035A2 EP08104504A EP08104504A EP2006035A2 EP 2006035 A2 EP2006035 A2 EP 2006035A2 EP 08104504 A EP08104504 A EP 08104504A EP 08104504 A EP08104504 A EP 08104504A EP 2006035 A2 EP2006035 A2 EP 2006035A2
Authority
EP
European Patent Office
Prior art keywords
sterilizing agent
sterilization
housing
working
seconds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08104504A
Other languages
German (de)
English (en)
Other versions
EP2006035A3 (fr
Inventor
Kurt Diedrich Nobel
Claus Christian Nobel
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.)
Dino Anlagen- und Maschinenbau GmbH
Original Assignee
Dino Anlagen- und Maschinenbau 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 Dino Anlagen- und Maschinenbau GmbH filed Critical Dino Anlagen- und Maschinenbau GmbH
Publication of EP2006035A2 publication Critical patent/EP2006035A2/fr
Publication of EP2006035A3 publication Critical patent/EP2006035A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam

Definitions

  • the invention relates to a method for sterilizing at least one working medium, in particular in slaughterhouses and meat and fish processing plants, in which by means of a sterilizing element sterilizing agent are applied at least to parts of the working medium. Furthermore, the invention relates to a device for sterilizing at least one working means, in particular in slaughterhouses and meat and fish processing plants, arranged with a sterilization element arranged in a housing, wherein the working medium is at least partially inserted into the housing and sterilizing means by means of the sterilization element at least on parts of the working medium can be applied.
  • Such devices are from the DE 100 26 535 A1 and the DE 93 20 734 U1 known.
  • brushes may be provided to eliminate coarse or adhering to the surface of the working fluid impurities. It is disadvantageous that the contaminants can adhere to the brushes. This can lead to contamination of the brushes with harmful germs, bacteria and / or viruses. In this way, moreover, the effectiveness of the device for disinfecting the working fluid can be significantly reduced. In order to avoid permanent contamination of the brushes, the brushes have to be cleaned and disinfected at regular intervals.
  • the problem underlying the invention is to provide a method and a device for sterilizing, with a good sterilization of the working fluid with good cleaning and at the same time low Sterilisationsstoff- and energy needs is achieved.
  • the problem is solved in a method of the type mentioned in that a liquid first sterilant and a gaseous second sterilant are used. Further, the invention provides a device of the type mentioned, in which by means of the sterilizing element, a liquid first sterilizing agent and a gaseous second sterilizing agent can be applied.
  • both a liquid and a gaseous sterilizing agent are used, whereby an efficient cleaning and sterilization of the working fluid is made possible. It can be one optimal sterilization result can be achieved while at the same time the necessary amount of sterilant can be significantly reduced.
  • the particularly effective use of sterilants in turn leads to a significantly reduced energy consumption.
  • the amount of contaminated sterilizing agent to be disposed of properly is also considerably reduced. This together leads to a significant reduction in operating costs.
  • water is used as the first sterilant. Water is available virtually everywhere and at low cost. In addition, the use of water in cleaning and sterilization has proven itself. Furthermore, water can be added with additional cleaning and / or disinfecting agents to increase the cleaning or disinfecting effect.
  • the working fluid is rinsed off by means of the first sterilizing agent.
  • adhering to the working fluid impurities can be removed.
  • the working fluid is preferably exposed to the first sterilizing agent for about 10 seconds to 15 seconds for rinsing, resulting in a high cleaning effect.
  • the cleaning effect can be further increased by the first sterilant is applied to the working fluid with a maximum operating pressure of 4 bar. Due to the increased pressure, even adhering impurities can be rinsed away from the working fluid.
  • water vapor is used as the second sterilizing agent.
  • the first sterilant water can also be used as a starting point for the second sterilant.
  • the sterilizing agent can thus be provided easily and inexpensively.
  • the water or the second sterilant must only be evaporated, with the second sterilant preferably heated to about 150 ° C. This ensures that the second sterilizing agent hits the working medium at a sufficiently high temperature.
  • the working medium is exposed to the second sterilizing agent for about 20 seconds to 40 seconds, preferably 30 seconds, for sterilization.
  • the working fluid is heated to a sufficiently high temperature so that the working fluid is thereby sterilized.
  • a minimum operating pressure of 3 bar may be provided for the second sterilizing agent.
  • the working medium is exposed in a first step to the second sterilizing agent, in a second step to the first sterilizing agent and in a third step to the second sterilizing agent.
  • the working fluid is exposed to the second sterilant for about 4 seconds to 10 seconds, preferably 5 seconds, for dissolution.
  • adhering to the working fluid impurities are first dissolved, which are rinsed in the subsequent second step by means of the first sterilizing agent.
  • the necessary amount of the first sterilant can be significantly reduced in the second step. As a result, significantly lower amounts of waste water to be disposed of properly. The operating costs are thus further reduced.
  • the working medium is heated to about 110 ° C for sterilization.
  • a very high sterility is reached.
  • a germination of 0 germs per cm 2 can be achieved, which represents the best possible result of a sterilization.
  • the sterilization element of the device according to the invention has at least one line which has outlet openings for the sterilization agent. Via the line, the sterilizing agent can be brought to the working fluid and be applied by means of the outlet openings targeted from the line to the working fluid.
  • the sterilization element is U-shaped. As a result, the sterilizing agent can be applied by means of only one line at different locations on the working fluid. This increases the effectiveness and reliability of the sterilization process.
  • the housing has an opening for insertion of the working means and for the working means is a, in particular cone-shaped, receptacle provided.
  • the working fluid can be introduced into the housing for sterilization and is reliably held in its position by the receptacle.
  • the receptacle is provided centrally between a first leg and a second leg of the U-shaped sterilization element. As a result, the sterilant can be applied evenly from at least two sides of the working fluid.
  • the opening and / or receptacle is integrated in a storage surface and the storage surface is preferably made of a material that repels impurities, in particular PTFE.
  • the shelf can be used for temporary storage of work equipment, the shelf is easy to clean due to the impurities repellent material and contamination by germs or bacteria is preventable.
  • the housing has an outlet.
  • the outlet By means of the outlet, the impurities, the used first sterilizing agent and the condensed second sterilizing agent can be removed from the housing.
  • contamination of the housing interior is significantly reduced.
  • a siphon connects to the outlet. This ensures that no impurities from the outlet can enter the housing interior, at the same time can be maintained by the siphon a slightly higher operating pressure inside the housing during sterilization. This slightly increased pressure leads to an improved result.
  • the sterilization element has a first supply line for the first sterilization agent and a second supply line for the second sterilization agent.
  • both sterilization agents can be applied to the working medium by means of a common sterilization element. This reduces both the manufacturing costs and the operating costs, for example, through maintenance and cleaning.
  • the sterilization element is self-cleaning when passing the second sterilizing agent at a temperature of about 150 ° C.
  • the supply lines can each be opened and / or closed by means of a valve.
  • a pressure medium connection for a fluid, in particular for air, provided and the housing interior is acted upon by means of the fluid with an overpressure.
  • this is advantageous for a housing part in which the control is arranged. This ensures that no impurities can penetrate from the outside into the housing. The risk of contamination of the housing interior is significantly reduced.
  • the overpressure inside the housing is preferably about 0.1 bar in comparison to the ambient pressure. It is advantageous that a risk to personnel in case of improper operation of the device, for example by opening the case with built-pressure in the housing interior, can be largely excluded.
  • a sterilization process preferably in accordance with the method according to the invention, can be triggered upon actuation of a triggering means, in particular of a pneumatic pushbutton.
  • a triggering means in particular of a pneumatic pushbutton.
  • the triggering means may be present at a maximum operating pressure of 3.5 bar, which is made available via a fluid supplied by means of the pressure medium connection.
  • a control for controlling the sterilization process is provided. This results in a reproducible quality of sterilization of the working fluid and the Possibility to adapt the sterilization process according to individual wishes and requirements.
  • the use of the device for sterilizing working means of the food industry, in particular of slaughter cattle and meat and fish processing industry, such as knives, splitters, saws, saw blades, stab mittens or the like is more of particular advantage.
  • Fig. 1 shows in a side sectional view of a device 10 with the features of the invention.
  • the device 10 has a housing 11, in which a sterilization element 12 is arranged.
  • the sterilization element 12 consists of a line 13 which is substantially U-shaped and has a first leg 24 and a second leg 25. Furthermore, the sterilization element 12 has outlet openings 14.
  • the sterilization element 12 is held by a holding means 15 in the housing interior 16 and on an inner wall of the housing 11.
  • the line 13 is guided by the holding means 15 and a housing wall to an outer side of the housing 11.
  • a screw 15 As a holding means in the present case, a screw 15.
  • an outlet 18 is provided at the bottom of the housing 17.
  • a siphon 19 connects.
  • an opening 20 is provided, through which a working means 21 is partially inserted into the housing 11.
  • the working means 21 is a knife whose blade is inserted into the housing while the handle remains outside the housing 11.
  • the working means 21 is held by a receptacle 22 in its position.
  • the receptacle is pointed as a substantially cone-shaped receptacle 22 in a storage surface 23.
  • the storage surface 23 is made of impurities repellent PTFE material.
  • the opening 20 and the receptacle 22 are arranged on the housing 11 such that the working means 21 is positioned centrally between the first leg 24 and the second leg 25 of the U-shaped sterilization element 12.
  • the working means 21 is based on the observation level Fig.1 In this way, another working means 21 can be introduced into the housing 11 with respect to the viewing plane behind the sterilization element through a further opening 22.
  • two working means 21 can be sterilized simultaneously by means of a sterilization element 12.
  • Fig. 2 shows a rear view of an apparatus 10 with the features of the invention.
  • the storage surface 23 covers only about half of the upper side of the housing.
  • two working means 21 are partially inserted.
  • a trigger means 26 is arranged in the region of the top of the housing without storage surface 23 .
  • the release means 26 is designed as a compressed air button.
  • the back is covered by two covers 27 and 28.
  • the covers are held in position by means of fastening means 29, namely screws. For example, for cleaning and / or maintenance purposes, the fastening means 29 can be solved and the covers 27, 28 removed and then fixed again.
  • the front side facing away from the back are also not shown in the figure removable covers.
  • the supply lines 30, 31 are each provided with a valve 32, wherein the valve 32 can be opened or closed.
  • the supply lines 30, 31 lead into the conduit 13 of the sterilization element 12.
  • a power supply 33 is provided for the power supply of, for example, a controller, and a pressure medium connection 34 for a fluid.
  • the fluid used is air with a maximum operating pressure of 3.5 bar. This air pressure is used for the triggering means 26. Furthermore, the air pressure can be used to generate an overpressure in the housing interior 16 of about 0.1 bar relative to the ambient pressure. This ensures that no contaminants can penetrate from the outside into the housing 11.
  • the triggering means 26 is actuated. This triggers now the sterilization process, which is controlled by a controller, not shown.
  • water vapor is fed into the sterilization element 12 via the supply line 30 with a minimum operating pressure of 3 bar as the second sterilization agent. This water vapor is applied in a first step for about 5 seconds to dissolve the contaminants on the working fluid 21 by means of the outlet openings 14.
  • water is then applied as a first sterilizing agent with a maximum operating pressure of 4 bar and for about 10 to 15 seconds on the working fluid 21 and thus rinsed off the already dissolved contaminants.
  • the about 150 ° C hot steam is applied again for about 30 seconds to the working fluid 21.
  • the working fluid 21 heats up to about 110 ° C, whereby a very good sterilization with up to zero germs per cm 2 can be achieved.
  • the sterilizing agents used during the sterilization process can flow out of the housing 11 by means of the outlet 18. Due to the siphon 19 and the pressure in the housing interior 16 no contaminants can penetrate into the housing 11 from the outside.

Landscapes

  • Apparatus For Disinfection Or Sterilisation (AREA)
EP08104504A 2007-06-22 2008-06-23 Procédé et dispositif destinés à stériliser au moins un équipement de travail Withdrawn EP2006035A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007029282A DE102007029282B4 (de) 2007-06-22 2007-06-22 Verfahren und Vorrichtung zum Sterilisieren mindestens eines Arbeitsmittels

Publications (2)

Publication Number Publication Date
EP2006035A2 true EP2006035A2 (fr) 2008-12-24
EP2006035A3 EP2006035A3 (fr) 2011-09-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104504A Withdrawn EP2006035A3 (fr) 2007-06-22 2008-06-23 Procédé et dispositif destinés à stériliser au moins un équipement de travail

Country Status (2)

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EP (1) EP2006035A3 (fr)
DE (1) DE102007029282B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011020455A3 (fr) * 2009-08-19 2011-06-23 Loelsberg Bernd Dispositif de nettoyage pour couvert portionneur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907988A1 (de) 1989-03-11 1990-09-13 Oscar Dipl Ing Ahner Messersterilisiergeraet
DE9320734U1 (de) 1993-12-15 1995-01-12 Freund Maschinenfabrik GmbH & Co. KG, 33100 Paderborn Reinigungseinrichtung für Arbeitsgeräte zur Lebensmittelverarbeitung
DE10026535A1 (de) 2000-05-27 2001-11-29 Christof Schuelling Reinigungsgerät zur Säuberung einzelner Besteckteile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139323A (en) * 1962-01-25 1964-06-30 Foremost Dairies Inc Sterilizing process
US5607349A (en) * 1994-04-28 1997-03-04 Kentmaster Mfg. Co., Inc. Carcass cleaning system
DE19854871A1 (de) * 1998-11-27 2000-05-31 Schmalz Reinhold Verfahren und mobile/stationäre Anlage zur Stofftrennung bzw. Sterilisation von kontaminierten Materialien durch heiße Gase, insbesondere von Verbrennungsmotoren oder Gasturbinen (V-Motoren)
US20020159917A1 (en) * 2001-04-27 2002-10-31 Swart Sally Kay System and method for cleaning, high level disinfection, or sterilization of medical or dental instruments or devices
US20040040586A1 (en) * 2002-09-03 2004-03-04 Kumar Chandran D. Cleaning apparatus and method
BRPI0400237A (pt) * 2004-01-16 2005-08-16 Tadashi Shiosawa Processo de esterelização a vácuo com aplicação de vapor de uma mistura de ácido peracético com peróxido de hidrogênio e plasma de gás residual de ar atmosférico excitado por descarga elétrica dc pulsada; dispositivos e métodos operacionais utilizados no processo de esterilização

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907988A1 (de) 1989-03-11 1990-09-13 Oscar Dipl Ing Ahner Messersterilisiergeraet
DE9320734U1 (de) 1993-12-15 1995-01-12 Freund Maschinenfabrik GmbH & Co. KG, 33100 Paderborn Reinigungseinrichtung für Arbeitsgeräte zur Lebensmittelverarbeitung
DE10026535A1 (de) 2000-05-27 2001-11-29 Christof Schuelling Reinigungsgerät zur Säuberung einzelner Besteckteile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011020455A3 (fr) * 2009-08-19 2011-06-23 Loelsberg Bernd Dispositif de nettoyage pour couvert portionneur
US9044130B2 (en) 2009-08-19 2015-06-02 Bernd Lölsberg Cleaning device for a portioning utensil

Also Published As

Publication number Publication date
DE102007029282B4 (de) 2011-10-20
EP2006035A3 (fr) 2011-09-14
DE102007029282A1 (de) 2008-12-24

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