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WO2006032731A1 - Procede de lavage d’un appareil de traitement - Google Patents

Procede de lavage d’un appareil de traitement Download PDF

Info

Publication number
WO2006032731A1
WO2006032731A1 PCT/FI2005/050323 FI2005050323W WO2006032731A1 WO 2006032731 A1 WO2006032731 A1 WO 2006032731A1 FI 2005050323 W FI2005050323 W FI 2005050323W WO 2006032731 A1 WO2006032731 A1 WO 2006032731A1
Authority
WO
WIPO (PCT)
Prior art keywords
washing
processing apparatus
washing solution
solution
passed
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.)
Ceased
Application number
PCT/FI2005/050323
Other languages
English (en)
Inventor
Heikki Pahlman
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.)
Tampereen Teollisuussahko Oy
Original Assignee
Tampereen Teollisuussahko Oy
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 Tampereen Teollisuussahko Oy filed Critical Tampereen Teollisuussahko Oy
Publication of WO2006032731A1 publication Critical patent/WO2006032731A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01J—MANUFACTURE OF DAIRY PRODUCTS
    • A01J7/00—Accessories for milking machines or devices
    • A01J7/02—Accessories for milking machines or devices for cleaning or sanitising milking machines or devices
    • A01J7/022—Clean-in-Place Systems, i.e. CIP, for cleaning the complete milking installation in place
    • 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
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0325—Control mechanisms therefor
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/04—Apparatus for cleaning or pickling metallic material for cleaning pipes

Definitions

  • the invention relates to a method of washing processing ap ⁇ paratuses that process foodstuffs, pharmaceuticals or hygiene products.
  • the method comprises washing the inside of the components belonging to the processing apparatus, such as pipes, containers, etc., using at least one wash ⁇ ing solution.
  • the food industry and the pharmaceutical industry involve a plurality of processes where the material to be processed passes through pipes and containers as well as various other devices during the processing or production.
  • a problem associated with all these is that the processing appara ⁇ tuses, such as pipes and containers, have to be washed regularly so as to keep the material passing through them sterile and usable.
  • processing pipes and apparatuses According to the current regulations, processing pipes and apparatuses have to be washed once during an 8-hour shift in dairies, for instance.
  • apparatuses are typically washed by emptying pipes, containers and apparatuses of the remaining material by rins ⁇ ing them with water, after which they are washed with hot water. Then each of them is washed and disinfected with an alkaline washing solution, typically with sodium hydroxide, followed by rinsing with water and then by acid treatment, which neutralizes the alkali and removes crystallizations. After all these steps, the apparatus is rinsed with water.
  • an alkaline washing solution typically with sodium hydroxide
  • the object of the invention is to provide a method of washing processing apparatuses used in the food industry, pharmaceutical industry and hygiene industry which ensures a higher hygiene standard and a shorter wash ⁇ ing time. As a result of this, the production capacity of the apparatus increases compared to the existing methods.
  • the method according to the invention is characterized in that a clean washing solution is used in each washing step, the washing liquid that has passed though the processing apparatus is discharged from the proc ⁇ essing apparatus, at least one property of the washing solution that has passed through the processing apparatus is measured continuously, the prop ⁇ erty having at least one preset limit value which the value measured from the washing solution has to exceed or subceed, depending on the property in question, and that when the values of all measured properties of the washing solution that has passed though the processing apparatus exceed or subceed the limit value defined for the property in question, the feeding of the washing solution into the processing apparatus is stopped and the washing proceeds to the next step.
  • the basic idea of the invention is that fresh, clean and active washing fluids are always used in the washing of processing apparatuses.
  • An ⁇ other basic idea of the invention is that certain properties, such as dirtiness and reactivity, and effectiveness of solutions, in particular chemicals, are measured during the washing. On the basis of the measurements, it can be determined when the washing step of chemicals has been completed suffi ⁇ ciently well and the washing may proceed to the next step.
  • a further essential aspect of the invention is that the washing fluid used, such as a chemical, for example an acid or alkali, is removed from washing after this wash.
  • An advan ⁇ tage of the method according to the invention is that it provides a significantly better hygiene standard as the washing is always carried out using fresh and active washing fluid, such as a chemical.
  • the processing apparatus includes pipes 2, valves 3, containers 4, pumps 5 and various control units 6, as is known in the art.
  • these pipes 2, valves 3, containers 4 and pumps 5 contain the material to be treated, which is fluid or has a high fluid content, such as milk used in dairies in the food industry.
  • For washing the apparatus it is provided with containers 7 to 11 for washing chemicals and rinsing fluids or solutions.
  • fluids and solutions will together be referred to as solutions.
  • the term 'wash 1 refers to washing, sterilizing, neutralizing and rins ⁇ ing
  • the term 'washing solution' refers to a washing, sterilizing, neutralizing and rinsing solution.
  • the processing apparatus is provided with a feed pipe 12, through which the solution to be fed is supplied to the ap ⁇ paratus to be washed by means of valves 7a to 11a controlling the feed of each solution. After the solution has passed through the apparatus, it is dis ⁇ charged through a discharge pipe 13.
  • the pipe 13 is provided with one or more measuring devices 14 for measuring one or more properties of the solution.
  • Such measurable properties include dirtiness, i.e. the amount of material not belonging to a clean solution, conductivity, pH, opacity, etc.
  • a spectrum analysis indicating both the reactivity and the dirtiness of the solution may be performed on the solution at the same time.
  • the measurement device may be a single-channel or a multi-channel measurement device and/or an analyzer measuring either one or more properties.
  • the measurement device is connected to a control unit 16 con ⁇ trolling the washing process.
  • the control unit is connected to control valves 7a to 11a, valves 7b to 11b and a three-way valve 18 mounted in the discharge pipe 13.
  • a recovery channel 19 leads from the three-way valve 19 through the valves 7b to 11 b to the respec ⁇ tive containers 7 to 11 as well as to a waste container 20 illustrated schemati ⁇ cally, which may be a collector container intended for one or more solutions. There may also be several collection containers.
  • a rinsing solution is typically fed into it from the container 7 through the valve 7a.
  • water is typically used as the rinsing solution for rinsing the remaining ma ⁇ terial from the apparatus 1.
  • this "bath" consisting of the rinsing solution and the material to be treated may be recovered by supplying it through the three-way valve 18 to the channel 19 and further to the container 8 through the valve 8b. If desired, the material to be treated contained in the bath may be recovered by suitable methods, which are generally known per se.
  • the control unit 16 closes the valves 7a and 8b and switches the three-way valve 18 to discharge the solution through the discharge pipe directly into the waste container or into the sewer.
  • washing solution is fed into the apparatus 1 , typically alkali from the container 9 in the food in ⁇ dustry. This washing solution is fresh and unused, and thus clean and active.
  • the washing solution is fed via the valve 9a through the processing apparatus 1 and the properties of the washing solution exiting the apparatus are meas ⁇ ured by the measuring device 14 connected to the discharge pipe 13.
  • the washing solution that has passed through the apparatus is discharged from the washing process directly into neutralization or elsewhere, for example into the waste container 20.
  • Certain limit values have been defined for the measured properties of the washing solution. Depending on the measured property, its value has to either exceed or subceed the above-mentioned limit value. For example, when the dirtiness of the washing solution is measured, the value indicating the amount of dirt, i.e. the amount of substances not belonging to the solution, has to subceed a certain limit value and when the reactivity is measured, it has to exceed a set limit value.
  • the washing with the washing solution is stopped and the washing solution re ⁇ maining in the processing apparatus 1 can be returned to the chemical cycle.
  • the control unit 16 switches the three- way valve 18 to discharge the washing solution from the discharge pipe 13 into the container 9 through the pipe 19 and valve 9b and the processing apparatus is rinsed by supplying rinsing solution, which is for example water in the food industry, from the container 7 into the apparatus 1 through the valve 7a.
  • rinsing solution which is for example water in the food industry
  • the control unit prevents the flow of the solution to the container 9 through the pipe 19 and makes the rinsing solution flow either into the sewer or waste container 20.
  • another washing solution may be fed into the processing apparatus, such as a solution that neutralizes the remains of the previous washing solution, for example acid from container 11.
  • the clean solution that is inside the processing apparatus may be recovered in accordance with the steps described above, in which case the properties of the solution are measured in the discharge pipe 13 leading out of the processing apparatus 1.
  • This washing solution such as neutralizing acid, is also supplied either to neutralization or the waste container after the processing, and neutralization continues until the measured proper ⁇ ties of the solution fulfil the pre-set criteria.
  • the processing apparatus After the washes, the processing apparatus is naturally rinsed again, after which it is hygienic and ready for re ⁇ use. In addition, it has been washed in a time shorter than the current washing times. If necessary, new solutions may be fed into the different containers through the pipe 21 and valve 22 as well as through the valves 7b to 11b, which provide a connection to each container, either one container at a time or to each container through separate pipes in a manner known per se.
  • the invention was described by an example in connection with the food industry, where an alkali, usually sodium hydroxide, is typically used as the washing agent and a weak acid for neutralizing the alkali. Instead of acid, other chemicals may also be used in the neutralization, such as chlo ⁇ rine, etc.
  • the solution according to the invention is, however, similarly applica ⁇ ble to the pharmaceutical industry or hygiene industry where various products are manufactures, such as pharmaceuticals.
  • wash ⁇ ing and neutralizing solutions may be employed in these industries, including sodium boron hydride, trimethyl borate, ammonium, chlorine compounds, hy ⁇ drogen-based solutions, such as hydrogen peroxide, alcohols, etc.
  • washing chemical and the neutralizing chemical are always clean and active chemical solutions which, after passing through the process, are discharged without recycling them into the process.
  • one or more properties of the washing solution that has passed through the process are measured so that when the properties fulfil preset criteria, the ongoing washing step or neu ⁇ tralizing step is stopped and the process proceeds to the following step, typi ⁇ cally to rinsing.
  • the invention can be used in the same way for monitoring the rinsing solution.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Husbandry (AREA)
  • Environmental Sciences (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
  • Cleaning In General (AREA)

Abstract

L’invention concerne un procédé de lavage d’appareils de traitement utilisés lors du traitement de produits alimentaires, pharmaceutiques ou hygiéniques. Le procédé comprend le lavage d’un appareil de traitement (1) et son rinçage par une solution propre, auquel cas au moins une propriété de la solution qui a traversé l’appareil de traitement est mesurée et, si la valeur mesurée est acceptable, la solution en question cesse d’être introduite dans l’appareil de traitement (1) et l’étape suivante du lavage est mise en oeuvre.
PCT/FI2005/050323 2004-09-22 2005-09-21 Procede de lavage d’un appareil de traitement Ceased WO2006032731A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20045350A FI20045350A7 (fi) 2004-09-22 2004-09-22 Menetelmä prosessilaitteiston pesemiseksi
FI20045350 2004-09-22

Publications (1)

Publication Number Publication Date
WO2006032731A1 true WO2006032731A1 (fr) 2006-03-30

Family

ID=33041628

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2005/050323 Ceased WO2006032731A1 (fr) 2004-09-22 2005-09-21 Procede de lavage d’un appareil de traitement

Country Status (2)

Country Link
FI (1) FI20045350A7 (fr)
WO (1) WO2006032731A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008147321A1 (fr) * 2007-06-01 2008-12-04 De Laval Holding Ab Procédé et arrangement dans un système de traite
DE102007027705A1 (de) * 2007-06-15 2008-12-18 Ziemann Ludwigsburg Gmbh Verfahren zum Behandeln von Flüssigkeiten führenden Anlagen, insbesondere von Brauerei- und Getränkeanlagen, und deren Teile, und Vorrichtung zum Durchführen des Verfahrens
FR2923737A1 (fr) * 2007-11-16 2009-05-22 Imeca Process Soc Par Actions Procede et dispositif de lavage d'une installation de production alimentaire, pharmaceutique, cosmetique ou similaire.
EP2527050A1 (fr) 2011-05-26 2012-11-28 Skånemejerier AB Nouveau procédé
WO2013081534A1 (fr) * 2011-12-01 2013-06-06 Delaval Holding Ab Système de traite et procédé de nettoyage dans un système de traite
EP2937309A4 (fr) * 2012-12-21 2016-11-02 Dainippon Printing Co Ltd Procédé de remplissage de boisson
WO2022189225A1 (fr) * 2021-03-09 2022-09-15 Gea Farm Technologies Gmbh Analyse d'un fluide de nettoyage dans une machine à traire
WO2023017059A3 (fr) * 2021-08-13 2023-03-23 HABI Tech. I/S Système et procédé de nettoyage en place (cip)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396178A (en) * 1992-05-18 1995-03-07 Dober Chemical Corporation Apparatus and method for determining that equipment is clean
JPH0984519A (ja) * 1995-09-22 1997-03-31 Iwai Kikai Kogyo Kk 自動洗浄装置付き食品等製品製造装置
US6161557A (en) * 1998-12-22 2000-12-19 Showa Tansan Co., Ltd. Method and apparatus for washing manufacturing line of drink or the like
US20010035198A1 (en) * 2000-03-20 2001-11-01 Gannett Fleming, Inc. Product recovery system
US20020096199A1 (en) * 2000-03-09 2002-07-25 Steris Inc. Two compartment container for neutralizing used cleaning solutions
US20030183249A1 (en) * 2000-06-06 2003-10-02 Jarmo Nissinen Method and system for cleaning beverage tubes and a detector unit used in the system
US20040118432A1 (en) * 2002-12-18 2004-06-24 Andy Kenowski Monitoring device and method for operating clean-in-place system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396178A (en) * 1992-05-18 1995-03-07 Dober Chemical Corporation Apparatus and method for determining that equipment is clean
JPH0984519A (ja) * 1995-09-22 1997-03-31 Iwai Kikai Kogyo Kk 自動洗浄装置付き食品等製品製造装置
US6161557A (en) * 1998-12-22 2000-12-19 Showa Tansan Co., Ltd. Method and apparatus for washing manufacturing line of drink or the like
US20020096199A1 (en) * 2000-03-09 2002-07-25 Steris Inc. Two compartment container for neutralizing used cleaning solutions
US20010035198A1 (en) * 2000-03-20 2001-11-01 Gannett Fleming, Inc. Product recovery system
US20030183249A1 (en) * 2000-06-06 2003-10-02 Jarmo Nissinen Method and system for cleaning beverage tubes and a detector unit used in the system
US20040118432A1 (en) * 2002-12-18 2004-06-24 Andy Kenowski Monitoring device and method for operating clean-in-place system

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008147321A1 (fr) * 2007-06-01 2008-12-04 De Laval Holding Ab Procédé et arrangement dans un système de traite
US8381680B2 (en) 2007-06-01 2013-02-26 Delaval Holding Ab Method and arrangement in milking system
DE102007027705A1 (de) * 2007-06-15 2008-12-18 Ziemann Ludwigsburg Gmbh Verfahren zum Behandeln von Flüssigkeiten führenden Anlagen, insbesondere von Brauerei- und Getränkeanlagen, und deren Teile, und Vorrichtung zum Durchführen des Verfahrens
WO2009068824A3 (fr) * 2007-11-16 2009-07-30 Imeca Process Procede et dispositif de lavage d'une installation de production alimentaire, pharmaceutique, cosmetique ou similaire.
FR2923737A1 (fr) * 2007-11-16 2009-05-22 Imeca Process Soc Par Actions Procede et dispositif de lavage d'une installation de production alimentaire, pharmaceutique, cosmetique ou similaire.
EP2527050A1 (fr) 2011-05-26 2012-11-28 Skånemejerier AB Nouveau procédé
WO2012160185A2 (fr) 2011-05-26 2012-11-29 Skånemejerier Ab Nouveau procédé
WO2013081534A1 (fr) * 2011-12-01 2013-06-06 Delaval Holding Ab Système de traite et procédé de nettoyage dans un système de traite
EP2937309A4 (fr) * 2012-12-21 2016-11-02 Dainippon Printing Co Ltd Procédé de remplissage de boisson
EP3120940A1 (fr) * 2012-12-21 2017-01-25 Dai Nippon Printing Co., Ltd. Procédé de remplissage de boissons
US10442669B2 (en) 2012-12-21 2019-10-15 Dai Nippon Printing Co., Ltd. Drink filling method
EP3120940B1 (fr) 2012-12-21 2021-11-17 Dai Nippon Printing Co., Ltd. Procédé de remplissage de boissons
WO2022189225A1 (fr) * 2021-03-09 2022-09-15 Gea Farm Technologies Gmbh Analyse d'un fluide de nettoyage dans une machine à traire
US12329121B2 (en) 2021-03-09 2025-06-17 Gea Farm Technologies Gmbh Analysing a cleaning fluid in a milking machine
WO2023017059A3 (fr) * 2021-08-13 2023-03-23 HABI Tech. I/S Système et procédé de nettoyage en place (cip)

Also Published As

Publication number Publication date
FI20045350L (fi) 2006-03-23
FI20045350A0 (fi) 2004-09-22
FI20045350A7 (fi) 2006-03-23

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