JP2007236706A - Washing apparatus for washing object to be washed of food manufacturing facility, and washing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing apparatus by which flavor components adsorbed by objects to be washed in food manufacturing facilities such as drink producing machines, drink producing tanks or sealing materials of their connecting pipes can be efficiently eliminated. <P>SOLUTION: The washing apparatus 10 for washing the objects to be washed of the food manufacturing facilities 50 is provided with an ozone generator 12 which forms ozone for washing the objects to be washed of the food manufacturing facilities 50, a heater 11 which heats water for dissolving ozone, a mixer 13 which mixes ozone generated by the ozone generator 12 and water heated by the heater 11 and prepares heated ozone-mixed water and pipes 14 which supply the heated ozone-mixed water prepared by the mixer 13 to the objects to be washed using sealing materials made of silicone rubber of the food manufacturing facilities 50. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cleaning device in a food production facility, and more particularly to a cleaning device suitable for removing aroma components in a food production facility.

  For example, in a beverage factory having a food production facility, at the time of switching the production item, at the end of the operation, etc., the cleaning agent is supplied to these devices and tanks without disassembling the beverage production facility equipment, beverage production tank and their connection pipes. In addition, so-called in-place cleaning (CIP: Cleaning In Place), in which cleaning is performed by flowing in a pipe, is widely performed. According to this stationary cleaning, it is possible to shorten the cleaning time and labor as compared with disassembling and cleaning the connection pipe.

  For example, the cleaning device used for this stationary cleaning includes an acidic cleaning agent supply unit, an alkaline cleaning agent supply unit, a hot water circulation unit, and a heating device that heats the acidic cleaning agent, the alkaline cleaning agent, and water to enhance the cleaning effect. I have.

  However, aroma components (beverage flavors, etc.) adhering to beverage manufacturing equipment, beverage manufacturing tanks and seals (gaskets, packings, O-rings, etc.) of these connection pipes are easy with acidic and alkaline cleaners. Cannot be removed. For this reason, the aromatic component is removed by adding a process of washing with sodium hypochlorite or a surfactant, or by repeatedly performing a washing process with these chemicals. For this reason, the time for stationary cleaning has become longer, and shortening the time for stationary cleaning has become a major issue for improving the productivity of beverage production facilities.

As a conventional technique for shortening the stationary cleaning time, for example, Patent Document 1 is available. Patent Document 1 describes a container and piping cleaning device using ozone (a combination of ozone water film, ozone gas, and atomized ozone water).
Further, Patent Document 2 proposes a cleaning apparatus that shortens the cleaning time by performing cleaning with an acidic cleaning agent and an alkaline cleaning agent after cleaning with ozone-dissolved water.
On the other hand, Patent Document 3 proposes a treatment apparatus that increases ozone reactivity by dissolving ozone in water and then heating the ozone-dissolved water with a heat exchanger.

JP 2005-131453 A JP-A-8-117708 Japanese translation of PCT publication No. 2003-512736

  A cleaning apparatus that uses ozone alone described in Patent Document 1 and a cleaning apparatus that uses ozone described in Patent Document 2 in combination with an acidic cleaning agent and an alkaline cleaning agent are not widespread. These cleaning devices have an ozone cleaning effect on beverage production equipment, beverage production tanks and their connection pipes, but seal materials (gaskets, packings, O--) used in those devices, tanks or pipes. It is not easy to remove aroma components adsorbed on a ring or the like, and the cleaning time cannot be shortened. The seal material often used for these equipment, tanks and pipes is made of EPDM (ethylene propylene diene rubber), and EPDM seal material is rebound resilience, abrasion resistance, aging resistance and ozone resistance. Excellent in acid resistance, alkali resistance, and economy. However, the EPDM sealing material is easy to adsorb fragrance components, and the adsorbed fragrance components are difficult to remove even after washing with an acidic cleaner, an alkaline cleaner, sodium hypochlorite, a surfactant, Further, there is a drawback that it is difficult to remove even by cleaning with ozone.

  Moreover, in the washing | cleaning apparatus described in patent document 3, the ozone reactivity is raised by heating this ozone solution water with a heat exchanger, after melt | dissolving ozone in water. However, since ozone self-decomposes while heating water in which ozone is dissolved with a heat exchanger, the loss of ozone increases. In addition, heat exchange efficiency is reduced due to the influence of bubbles generated in the heat exchanger due to heating, and there is a possibility that extra heat energy is required for heating.

  As described above, the conventional cleaning device using ozone in the beverage production facility does not have a cleaning function for effectively removing the aroma component in a short time. However, from the standpoint of improving productivity, reducing chemical usage, saving energy, saving water, and reducing the load on the water environment by reducing drainage, the need for an efficient cleaning device in beverage production facilities is increasing.

  The present invention has been made to solve the technical problems as described above, and the object of the present invention is to provide a beverage production device, a beverage production tank, or a beverage production tank, which is an object to be cleaned in a food production facility. Another object of the present invention is to provide a cleaning device capable of efficiently removing the aroma component adsorbed on the sealing material of the connecting pipe.

  For this purpose, the present invention provides a cleaning apparatus for cleaning the object to be cleaned of the food production facility, an ozone generator for generating ozone for cleaning the object to be cleaned of the food manufacturing facility, and ozone. A heating device that heats the water to be dissolved, a mixer that mixes ozone generated by the ozone generator and water heated by the heating device to prepare heated ozone mixed water, and a heated ozone mixture prepared by this mixer And piping for supplying water to the object to be cleaned of the food production facility. By heating only water before mixing with ozone, it is possible to significantly reduce the loss of ozone compared to the case of heating ozone mixed water.

  Here, if the object to be cleaned of this food production facility is a food production device, a food production tank, or a connection pipe provided with a silicon rubber sealant, the aroma adsorbed by the sealant This is preferable because the components can be decomposed at a very high speed.

  From another point of view, the cleaning apparatus to which the present invention is applied includes an ozone generator that generates ozone for cleaning an object to be cleaned in a food manufacturing facility, and ozone and water generated by the ozone generator. A mixture for preparing ozone mixed water and a pipe for supplying the ozone mixed water prepared in this mixer to the object to be cleaned of the food manufacturing facility, and the object to be cleaned is made of silicon rubber seal It is characterized by being a food production equipment provided with a material, or a food production tank, or a connecting pipe.

Further, it is preferable that the ozone-dissolving water is demineralized water having an electric conductivity of 1 mS / m (25 ° C.) or less because the self-decomposition rate of ozone can be reduced.
Furthermore, at least one of an acidic cleaning agent supply unit, an alkaline cleaning agent supply unit, and a warm water circulation unit may be included.

  On the other hand, the present invention is a cleaning method for cleaning an object to be cleaned in a food production facility, which generates ozone for cleaning the object to be cleaned in a food manufacturing facility, and heats water that dissolves ozone. Prepare ozone-mixed water by mixing the heated ozone and heated water, and prepare the object to be cleaned consisting of food manufacturing equipment, food manufacturing tank, or connecting piping with silicon rubber sealant for food manufacturing equipment. , And using the prepared ozone mixed water.

  ADVANTAGE OF THE INVENTION According to this invention, the aromatic component adsorb | sucked to the to-be-cleaned object in a foodstuff production equipment, for example, a drink manufacturing apparatus, a drink manufacturing tank, or the sealing material of these connection piping can be removed efficiently.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a diagram showing a cleaning system for food production equipment to which the present embodiment is applied. The food manufacturing facility cleaning system shown in FIG. 1 includes a food manufacturing facility 50 such as a beverage manufacturing facility that is an object to be cleaned, and a cleaning device 10 that cleans various devices constituting the food manufacturing facility 50. . In the present embodiment, a sealant made of silicon rubber is used in the food production facility 50 to facilitate removal of aroma components such as beverage flavor. Silicone rubber is generally not strong in mechanical strength, so it may not be suitable for moving parts, etc. On the other hand, it has an excellent odor component removal function (described later). It is preferable to be used in a place where the component easily adheres.

  The cleaning device 10 functions as a stationary cleaning (CIP) device that performs cleaning and sterilization without disassembling and moving the mechanical device, and performs stationary cleaning on the food manufacturing facility 50. The cleaning device 10 includes a heating device 11 that heats water supplied for cleaning the food production facility 50, an ozone generator 12 that generates ozonized gas, and an ozonized gas generated by the ozone generator 12. And a mixer 13 that absorbs the water heated by the heating device 11. Moreover, it has the piping 14 which supplies the heating ozone mixing water adjusted with the mixer 13 to the to-be-cleaned object of the foodstuff manufacturing equipment 50. FIG. Furthermore, a pump 16 for supplying water to the heating device 11 is provided. Also, an alkaline cleaning agent supply unit 17 for cleaning with an alkaline detergent, an acidic cleaning agent supply unit 18 for cleaning with an acidic detergent, and hot water circulation for circulating hot water, for example, for heat sterilization Unit 19 is provided. The detergent used in the alkaline cleaning agent supply unit 17 and the acidic cleaning agent supply unit 18 differs depending on the material of the equipment to be cleaned and the physical properties of the liquid to be handled. Therefore, the most suitable one for each use condition is selected.

  Moreover, as for the water supplied to the washing | cleaning apparatus 10, it is desirable that the water for ozone dissolution is demineralized water whose electrical conductivity is 1 mS / m (25 degreeC) or less. When normal tap water is used, the self-decomposition of ozone is promoted by ions contained in the tap water. Ozone has a strong oxidizing power, so it easily oxidizes most metals except gold and platinum and reacts with many other inorganic and organic substances. Therefore, the higher the purity of ozone-dissolving water and the lower the inorganic and organic concentrations, the lower the ozone self-decomposition rate. In this embodiment, therefore, the loss of ozone to be mixed is reduced by using water with less impurities such as demineralized water having an electric conductivity of 1 mS / m (25 ° C.) or less as water for dissolving ozone. Yes.

  Here, organic substances (carbohydrates, fats, proteins, etc.) and inorganic substances are obtained by washing with an alkaline detergent by the alkaline detergent supply unit 17 of the washing apparatus 10, an acidic detergent by the acidic detergent supply unit 18, and warm water washing by the hot water circulation unit 19. (Calcium, magnesium, iron, etc.) are washed. However, fragrance components (beverage flavors, etc.) adhering to each device of the food production facility 50, beverage production tanks, and sealing materials (gaskets, packings, O-rings, etc.) of these connection pipes can be easily washed. It cannot be removed. Therefore, in the present embodiment, in the food production facility 50, the use of silicon rubber as a sealing material for piping and the like, and the use of hot water ozone (heated ozone mixed water) as a cleaning agent, aroma components adsorbed on the sealing material. Was configured to be efficiently removed.

Here, the production | generation method of hot water ozone (heating ozone mixing water) is demonstrated.
In this embodiment, when the hot water ozone is generated, the water mixed with ozone is not heated, but the water is heated first, and the heated water is mixed with ozone. Therefore, as shown in FIG. 1, a heating device 11 and an ozone generator 12 are arranged in the front stage of the mixer 13. Since the heating device 11 is before ozone mixing, for example, when the present cleaning device is additionally equipped with the present embodiment, even if the existing heating device is not ozone resistant, it can be used as it is.

  As the ozone generator 12, various ozone generation methods can be employed. For example, a discharge method using a silent discharge tube as a generator and an electrolysis method using a water electrolysis cell as a generator are suitable, and the silent discharge method is mainly used for generating large-capacity ozone from the viewpoint of efficiency.

  In the mixer 13, ozone produced by the ozone generator 12 is mixed with water heated by the heating device 11 by various gas-liquid contact operations, and ozone is dissolved in water. Therefore, how efficiently the produced ozone is dissolved in water greatly affects the economics of ozone treatment. Examples of the gas-liquid contact device employed in the mixer 13 include a device using a static mixer, a device using an ejector, a device using an ozone dissolution pump, and a device using a diffused contact tank.

  The static mixer has, for example, a structure in which a plurality of elements twisted at various angles are alternately arranged on the left and right sides in a pipe. The ozone gas to be mixed is injected into water at the static mixer inlet. Water and ozone gas are sequentially mixed by the elements while passing through such a structure, so that ozone is efficiently dissolved in water. The ejector includes a nozzle, a suction unit, a mixing unit, and a diffuser. The nozzle is used to depressurize the high-pressure liquid to obtain a high-speed two-phase fluid, and low-pressure ozone gas is supplied from the suction part. In the mixing unit, the gas phase sucked from the suction unit and the two-phase fluid are mixed, and the kinetic energy of the two-phase fluid is given to the suction flow. The diffuser converts kinetic energy into pressure energy by decelerating the fluid.

  The ozone dissolution pump injects ozone gas into the suction side piping or casing of the pump and dissolves ozone in water by high-speed stirring by the rotation of the impeller. For example, as a counter-flow type, the aeration type contact tank injects ozone generator ozone gas from below the bubble column, injects water from above the bubble column, and discharges water from which ozone has been absorbed from below the bubble column. To do. Among these gas-liquid contact devices, the static mixer and the ejector are particularly suitable because they are excellent in compactness and can obtain high ozone dissolution efficiency in a short time.

  As described above, in this embodiment, when the hot water ozone (heated ozone mixed water) is generated, the water mixed with ozone is not heated, but the water is heated by the heating device 11 first. In this heated water, ozone is mixed. Thus, self-decomposition of ozone at the time of heating can be avoided, and since no bubbles are generated at the time of heating, stable heat can be obtained with high heat exchange efficiency.

Next, an object to be cleaned that is subjected to stationary cleaning will be described.
FIG. 2 is a diagram illustrating an example of a stationary cleaning path applied to the food manufacturing facility 50 which is an object to be cleaned. In general, in the stationary cleaning, equipment, tanks and the like are not individually cleaned, but a production line including them is cleaned. As an example of the food production facility 50, for example, a beverage production facility such as canned green tea has an extraction step 51, a preparation step 52, a sterilization step 53, and a filling step 54, as shown in FIG. In the process, stationary cleaning by the cleaning device 10 is performed. This stationary cleaning can be performed by arbitrarily selecting each step, individually, by combining a plurality of steps, or by combining all steps.

  In the extraction step 51, for example, an extraction device that extracts, for example, green tea by a kneader method or a tea bag method, for example, a filter that separates the tea husk and the extract, a cooling heat exchanger that cools the extract, and removal of fine particles There are centrifuges and the like. In the blending step 52, for example, a blending tank that is prepared to an appropriate concentration, a filter for filtering turbidity, starch, and the like are provided. The sterilization step 53 includes a balance tank that stores beverages for sterilization, a UHT sterilizer for performing UHT (ultra high temperature) sterilization, a heat exchanger for cooling that cools the sterilized product liquid, and the like. Further, in the filling step 54, filling is performed by a filling machine. As described above, there are various devices, tanks, pumps, pipes, and the like in each process. However, in the stationary cleaning, not only individual devices but also pumps, pipes, and the like are cleaned. FIG. 2 shows that hot water ozone is supplied and drained from the cleaning device 10 in each step. However, some of these processes may be configured to be cleaned in place. In this embodiment, as described above, silicon rubber is used for the sealing material such as piping provided in each of these steps.

Next, a cleaning technique using silicon rubber as a sealing material used for piping of the food production facility 50 will be described in detail.
In factories that produce, for example, soft drinks using the food production facility 50, 5 to 9 times as much water is used to produce 1 liter of product. Among them, the proportion of water used for stationary cleaning is large, sometimes exceeding 50%, and the cleaning time may reach up to about 4 hours. As one of the reasons why a large amount of water is required and the washing time is long, the sealing material (gasket, used in the food production equipment of the food production facility 50, the food production tank, and their connecting pipes is used. The aromatic component in the raw material is adsorbed on the packing, O-ring, etc., and this aromatic component is difficult to desorb. Thus, the inventors have conducted research on the types of rubber used for the sealing material and various cleaning conditions, and have reached the present invention from the following examples.

EXAMPLES Next, although an Example demonstrates this invention further more concretely, this invention is not limited to a following example, unless the summary is exceeded.
In the experiment, EPDM rubber and heat-resistant silicone rubber were used as the sealing material (rubber packing), and each ring-shaped one having an outer diameter of 15 mm and a thickness of 2 mm was employed. As the EPDM rubber, a general rubber used in a beverage factory was used.
Limonene (occupying about 90% of the orange odor) was used as the aroma component.
In order to adsorb the aromatic component to the sealing material, each rubber is immersed in limonene saturated water for about 24 hours, so that the initial concentration of the rubber-like limonene is about 4 mg-limonene / g-rubber and EPDM rubber and heat resistant Limonene was adsorbed on the conductive silicone rubber.

In addition, the following cleaning solvents were prepared in accordance with typical cleaning processes.
・ Demineralized water (normal temperature water or hot water at 70 ° C)
・ Alkaline agent and acid agent adjusted to specified concentration with water ・ Saturated by continuously supplying ozone gas (flow rate: 50 mL / min, concentration: 97 ppm) to normal temperature water or hot water at 70 ° C. What generated radicals by continuously supplying ozone gas to hot water to which hydrogen peroxide (120 μL / L) was added. Here, when ozone gas is continuously supplied, t-butanol is reduced by about It added so that it might become 2.5 mg / L.
In order to elucidate the cleaning mechanism, an experiment was also conducted in which an ozone-containing gas (about 100 mg-O ₃ / L) was continuously brought into contact with rubber at 50 ml / min.

  In a beverage factory, (1) Rinsing with normal temperature water for a short time → (2) High temperature alkaline water → (3) Rinsing with normal temperature water → (4) High temperature deodorizing acid → (5) Rinsing with high temperature water → ( 6) Rinsing with normal temperature water → (7) Rinsing with high temperature water is performed by a cleaning process. In the experiment, each cleaning time was determined in advance in each cleaning step, and each of the above rubbers was cleaned using the above cleaning solvent.

FIGS. 3A and 3B are diagrams for comparing and explaining cleaning using an existing cleaning solvent and cleaning using hot water ozone (heated ozone mixed water). FIG. 3A shows the result when EPDM rubber is used, and FIG. 3B shows the result when silicon rubber is used. The horizontal axis represents the washing time (minutes), and the vertical axis represents the amount of residual limonene on the rubber (mg / g-rubber).
In the case of the EPDM rubber shown in FIG. 3 (a), in the existing method in which ozone is not mixed, limonene of 65% (2.6 mg / g-rubber) of the initial adsorption amount (4 mg / g-rubber) after 220 minutes. Remained. Further, in the cleaning using hot water ozone with the EPDM rubber shown in FIG. 3A, about 50% of the initial adsorption amount (about 2 mg / g-rubber) of limonene remained after 60 minutes.
On the other hand, in the case of the silicon rubber shown in FIG. 3 (b), in the existing method in which ozone is not mixed, about 25% of the initial adsorption amount (about 1 mg / g-rubber) remains in limonene after 220 minutes. . Further, in the cleaning using hot water ozone with silicon rubber shown in FIG. 3B, 100% could be removed in 30 minutes.

  FIG. 4 is a diagram showing the effect of hot water ozone cleaning on each rubber, and compares the treatment of limonene on EPDM rubber and silicon rubber with hot water ozone (70 ° C. hot water). The horizontal axis represents the cleaning time (minutes) with hot water ozone (70 ° C. hot water), and the vertical axis represents the amount of residual limonene on the rubber (mg / g-rubber). As is clear from the comparison of FIG. 4, there is a great difference in the cleaning effect by hot water ozone between EPDM rubber and silicon rubber. It can be understood that by washing with hot water ozone for about 30 minutes, almost all the amount of limonene in the silicon rubber can be removed and the cleaning effect is high, but it is clear that the EPDM rubber does not have a remarkable cleaning effect. became.

  FIG. 5 is a diagram showing the results of calculating reaction rate constants up to 20 minutes from the start of cleaning in various cleaning methods. The vertical axis represents a rate constant (1 / min). When this value is high, the reaction rate is fast and the removal of the aroma component is fast. In FIG. 5, acidic detergent, normal temperature (20 ° C.) ozone, hot water (70 ° C.) ozone, hot water ozone added with t-butanol, hot water ozone added with hydrogen peroxide (radical generation), ozone gas The first-order rate constants of direct gas cleaning are compared. As is apparent from FIG. 5, it can be understood that limonene adsorbed on silicon rubber is easier to remove than any EPDM rubber in any of the cleaning methods. It was also found that the removal of limonene from the silicon rubber was not due to elution, but due to a decomposition reaction by ozone. Furthermore, the cleaning effect is not lowered even in ozone water cleaning to which t-butanol is added as a radical scavenger (substance that stops radical chain reaction). Therefore, it became clear that the decomposition reaction of limonene by ozone water occurs not by radicals but by ozone itself.

  In general, the solubility of ozone is lower in hot water (70 ° C.) than in water at normal temperature (20 ° C.). However, the reaction rate constant of limonene removal shown in FIG. 5 is higher in hot water ozone than in room temperature ozone water. Although the value of the EPDM rate constant is smaller than that of silicon rubber, the same tendency is observed.

From the results of the examples as described above, it is possible to adopt a configuration as shown below to obtain a high cleaning effect for aroma component removal.
FIGS. 6A to 6C are diagrams showing configuration examples applicable in the present embodiment.
First, in FIG. 6A, the object to be cleaned 50a of the food production facility 50 is not limited to a silicon rubber sealing material. In FIG. 6A, after the water is heated by the heating device 11 and hot water is generated, the ozone generated by the ozone generator 12 is mixed with hot water by the mixer 13 and passed through the pipe 14. To the object to be cleaned 50a. As mentioned above, hot water ozone has a higher reaction rate constant for limonene removal than room temperature ozone water, meaning that even if silicon rubber is not used, the aromatic component is washed with hot water ozone. Is big.

  FIG. 6B is characterized in that a silicon rubber sealing material is used for the object to be cleaned 50 b of the food production facility 50. Moreover, in this FIG.6 (b), normal temperature ozone water is used instead of hot water ozone. As described above, a high reaction rate constant can be obtained by washing aromatic components adhering to silicon rubber even with room temperature ozone water (see FIG. 5). Therefore, even when hot water ozone is not used, the effect of cleaning the aroma component with ozone water is great.

  FIG. 6C is the most preferable embodiment in the present embodiment, and the object to be cleaned 50b including the silicon rubber sealant is cleaned using hot water ozone. As described above, the aromatic component adhering to the silicon rubber is decomposed at a very high speed by hot water ozone. Therefore, by combining the manufacturing apparatus using silicon rubber as the sealing material and the stationary cleaning using the hot water ozone cleaning method, the cleaning, which has conventionally taken about 4 hours, can be completed within 1 hour, for example, and with high efficiency. It is possible to remove aroma components such as flavor adsorbed on the sealing material. Further, similarly to FIG. 6A, after the water is heated by the heating device 11 to generate hot water, the ozone generated by the ozone generator 12 is mixed with the hot water by the mixer 13, and the pipe 14 Is supplied via. Since it is different from the one that heats ozone water mixed with ozone, self-decomposition of ozone at the time of heating can be avoided, and since there is no generation of bubbles at the time of heating, it is possible to perform stable heating with good heat exchange efficiency Become.

  In addition, in the said embodiment, although drink manufacturing facilities, such as green tea, were mentioned as an example as food manufacturing facility 50 of an Example especially, this invention is not limited to this, Other drinks (coffee, juice, etc.) For example, the present invention can also be applied to food production facilities such as ice cream, mayonnaise and sauce.

It is a figure which shows the washing | cleaning system of the food manufacturing equipment to which this Embodiment is applied. It is the figure which showed an example of the path | route of the stationary cleaning given to the foodstuff manufacturing equipment which is a to-be-cleaned object. (A), (b) is a figure for comparing and explaining the washing | cleaning using the existing washing | cleaning solvent, and the washing | cleaning using hot water ozone. It is the figure which showed the effect of the hot water ozone washing | cleaning with respect to each rubber | gum. It is a figure which shows the result of having calculated the reaction rate constant until 20 minutes of washing | cleaning start of various washing methods. (A)-(c) is the figure which showed the structural example applicable in this Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Cleaning apparatus, 11 ... Heating apparatus, 12 ... Ozone generator, 13 ... Mixer, 14 ... Piping, 50 ... Food production equipment

Claims (6)

A cleaning device for cleaning an object to be cleaned in a food production facility,
An ozone generator for generating ozone for cleaning the object to be cleaned of the food production facility;
A heating device for heating water that dissolves ozone;
A mixer for preparing heated ozone mixed water by mixing ozone generated by the ozone generator and water heated by the heating device;
A cleaning apparatus including a pipe for supplying heated ozone mixed water prepared by the mixer to an object to be cleaned of the food production facility.   The cleaning apparatus according to claim 1, wherein the object to be cleaned of the food manufacturing facility is a food manufacturing device, a food manufacturing tank, or a connecting pipe provided with a silicon rubber sealing material. A cleaning device for cleaning an object to be cleaned in a food production facility,
An ozone generator for generating ozone for cleaning an object to be cleaned in the food production facility;
A mixer for preparing ozone mixed water by mixing ozone and water generated by the ozone generator;
A pipe for supplying the ozone mixed water prepared in the mixer to the object to be cleaned of the food production facility,
A cleaning apparatus, wherein the object to be cleaned is a food manufacturing device, a food manufacturing tank, or a connection pipe provided with a sealant made of silicon rubber.   The cleaning apparatus according to any one of claims 1 to 3, wherein the ozone-dissolving water is demineralized water having an electric conductivity of 1 mS / m (25 ° C) or less.   The cleaning apparatus according to claim 1, further comprising at least one of an acidic cleaning agent supply unit, an alkaline cleaning agent supply unit, and a hot water circulation unit. A cleaning method for cleaning an object to be cleaned in a food production facility,
Generating ozone for cleaning the object to be cleaned in the food production facility;
Heating water to dissolve ozone,
Mix the generated ozone and heated water to prepare ozone mixed water,
Washing using a prepared ozone mixed water to clean a food manufacturing equipment, or a food manufacturing tank equipped with a silicon rubber sealant for the food manufacturing equipment, or a food manufacturing tank or connecting piping. Method.

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