JPS6072555A - Sterilizing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sterilizer for sterilizing liquid or paste foods, medicines, etc. to a microbiologically safe state, and more specifically, the present invention relates to a sterilizer that stably applies back pressure to the sterilizer. However, it is possible to sterilize the processed material under a constant high temperature oven 9, and the back pressure can be accurately controlled, even when the processed material contains solids or has high viscosity. , relates to a sterilizer that does not cause clogging in the device and does not destroy solid materials.

It is widely known that spoilage that occurs during storage of food products, etc. is generally caused by microorganisms. Techniques to enhance sex are also being developed. A typical example of this is a technology that heats and sterilizes products, such as supplies and retort products, after packaging them. However,
In this case, it is necessary to heat the container for a long time in order to kill the microorganisms, and in particular for foods and medicines, the long-term heating described above can affect the flavor, medicinal effect, etc.
Loss of nutritional value and destruction of tissues have been major problems.

For this reason, when sterilizing food and medicines, it is necessary to process them at high temperatures and in short periods of time. Aseptic filling devices and the like that fill sterilized processed materials into containers under aseptic conditions are attracting attention.

By the way, sterilization of foods, medicines, etc. is usually done at 100'C.
The process is often carried out at high temperatures that exceed 100,000 yen, and as a result, the treated material will boil in the sterilizer under normal pressure.

Therefore, in order to prevent this, a constant boiling temperature of 111i! is added to the sterilizer! It was necessary to carry out the process while maintaining suppressing pressure (hereinafter referred to as back pressure), and in this respect there were various problems as described below.

That is, in conventional equipment, a pressure pump is installed before and after the sterilizer to send the processed material to the sterilization stage, and a pump to send the processed material after sterilization to the next process. By controlling the amount, back pressure was applied to the sterilizer.

However, in this case, the pulsation of the pump causes fluctuations in the flow rate of the processed material passing through the sterilizer, which in turn causes fluctuations in the pump performance and There was a problem with the surface of the sterilizer, making it impossible to stably apply back pressure to the sterilizer, making it difficult to sterilize the processed material under constant conditions.

At the same time, in the above case, the back pressure is accurately controlled to a pressure that can be requested [1-! It was difficult to understand.

Furthermore, in the above method, if the sterilization conditions are such that the processed material can be sterilized to a sterile state, considerable high temperature and high pressure will be applied to the rear pump. This became a fatal problem in aseptic filling. In addition, the equipment must be able to withstand the high temperature and high pressure conditions mentioned above, and must be sterile, and there are various problems such as the difficulty of obtaining a stable flow rate both at high temperatures and in the building. Ta.

Furthermore, according to the above method, the treated material passes through the pump twice, and if the treated material contains solid matter, most of the solid matter is destroyed.

In addition, in the above case, if a pressure control valve or homogenizer is used instead of the rear pump, it is possible to maintain back pressure stably to some extent during sterilization 1i, but the If it contains similar substances or is highly viscous, it may cause clogging in the pressure control valve or small genoizer.
If the pressure inside the device increases abnormally (problems such as the device breaking down), the device cannot be turned off and used.

One object of the present invention is to provide a sterilization device that does not have the above-mentioned problems. That is, the first object of the present invention is to provide a sterilizer that can sterilize processed materials under a constant high temperature condition while applying a constant back pressure inside the sterilizer. The purpose of 2 is to be able to accurately and easily control the back pressure applied to the sterilizing IXN to the required pressure (m
The third purpose is to provide a sterilization device for use in ``,'', and the third purpose is to prevent clogging in the device even when processing materials containing solids or highly viscous materials. It is another object of the present invention to provide a sterilization device that can be sterilized in a good manner and without destroying the solid materials.
It is an object of the present invention to provide a sterilization device suitable for use as an aseptic filling device, which particularly requires strict sterilization conditions.

In order to achieve the above object, the present inventors have carried out extensive research on sterilizers, and as a result, instead of the conventional pressure pump and pump, or the combination of a pressure pump and a pressure control valve or a small mogenizer, the back pressure system has been developed. , especially the primary sterilization
In order to control the air in the tank installed in front of the sterilizer, install a tank in which the air pressure can be controlled. When back pressure is applied to the sterilizer by pressurizing the air to the sterilizer and controlling the air 1 in the tank installed at the rear of the sterilizer, the processed material is Because the material is sent to the sterilizer, the flow rate of the processed material sent to the sterilizer+i is always constant.Moreover, back pressure is applied to the sterilizer using air as a medium, so the back pressure is extremely stable. At the same time, the present inventors found that the pressure can be accurately controlled.At the same time, the present inventors also found that in the above case, when the processed material contains solids,
Even when the viscosity is high, a certain back pressure can be applied to the sterilizer, and at the same time the processed material does not clog the equipment.
It has also been found that solid matter can be processed very smoothly without being destroyed.

The present invention was made based on the above knowledge and consists of a specific invention and three 91 joint inventions. The gist of the specific invention of the present invention is at least a sterilizer, a pressure-feeding tank that can control the air pressure for pumping the processed material to the sterilizer, and a pressure tank installed at the rear of the sterilizer that can control the air pressure. A sterilizer comprising a back pressure tank, the pressure tank and the back pressure tank applying back pressure to the sterilizer;
It is.

In addition, the gist of the first aspect of the present invention is as follows: at least 6, a sterilizer, a pressure-feeding tank capable of controlling the air pressure for pressure-feeding the processed material to the sterilizer, and a sterilizer. A sterile tank that can control the air pressure installed at the rear of the tank, an auxiliary back pressure tank, a l-F control valve for drainage, and a tank for pulling out the processed material from the auxiliary back pressure tank. comprising a pump, the sterile tank is connected to the sterilizer by a transfer pipe, the auxiliary back pressure tank and the withdrawal pump are provided in an auxiliary back pressure pipe branching from the transfer pipe,
The pressure horn control valve is installed in a drainage pipe branching from the transfer pipe or the auxiliary back pressure pipe, and is installed in the pressure tank and the sterile tank, or the pressure tank and the auxiliary back pressure tank, or the pressure tank and The sterilizer is characterized in that a back pressure is applied to the sterilizer by the pressure control valve.

Further, the second combined invention of the present invention provides at least a sterilizer, a pressure-feeding tank capable of controlling air pressure for pumping the processed material to the sterilizer, and a pressure-feeding tank provided at the rear of the sterilizer that can control the air pressure. The sterile tank is connected to the sterilization tank by a transfer pipe, and the back pressure pump is connected to an auxiliary back pressure pump branching from the transfer pipe. The pressure control valve is installed in a drainage pipe branching from the transfer pipe or the auxiliary back pressure pipe, and the pressure control valve is installed in a drainage pipe branching from the transfer pipe or the auxiliary back pressure pipe, and the pressure control valve is installed in a drainage pipe branching from the transfer pipe or the auxiliary back pressure pipe, and the pressure control valve This sterilizer is characterized in that back pressure is applied to the sterilizer by a pressure feeding tank and a pressure control valve.

Furthermore, the gist of the third combined invention of the present invention is at least as follows:
A sterilizer, a pressure-feeding tank that can control the air pressure for pumping the processed material to the sterilizer, a sterile tank that can control the air pressure installed at the rear of the sterilizer, a back pressure pump, and a The sterile tank is connected to the transfer pipe, the sterile tank is connected to the transfer pipe, and the back pump and the cold tank are connected to the back pressure drainage branched from the transfer pipe. The sterilizer is characterized in that back pressure is applied to the sterilizer by the pressure feed tank and the sterile tank, or the pressure feed tank and the back pressure pump.

The present invention will be explained in detail below based on the drawings.

FIG. 1 is a flow diagram showing one of the preferred embodiments of the sterilizer of the present invention. and sent to the sterilizer 3.The pressure tank 1 is equipped with a pressure lens 17.
and pressure] j Con 1 is equipped with a roller 16, and a pressure sensor 9-
-17 senses the pressure inside the tank, and the pressure controller 16 operates the pressure control valve 23 to constantly control the pressure and force inside the tank at a constant level using air.

In addition, as the sterilizer 3, high temperature 9. It is possible to use various heat exchangers such as the play type, dupe type, scraper set (surface scraping type), etc. that can perform U-side treatment, and steam injection type heating machines, etc., if necessary. These are used in conjunction. Furthermore, when the material to be treated is highly viscous, it is particularly effective to use a heat exchanger with a scraper equipped with a stirring function.

In the sterilizer of the present invention, a back pressure tank 5 is provided behind the sterilizers 1 and 3 in order to apply a constant back pressure to the sterilizer 3 as described above and treat the processed material at sufficiently high humidity. The back pressure tank 5, like the above-mentioned pressure tank 1, is equipped with a pressure Norton 1 no. Therefore, the above-mentioned back pressure tank 5
When used in a device, the following effects are produced. That is, the processed material is sequentially fed at a constant flow rate f! by the air pressure of the pressure tank 1. Sent to Sono Iku 3, but 11. '
The processed material 1 is pushed back to the pressure tank 1 side by the air pressure controlled at a constant level in the combination pressure tank 5, and as a result, a constant back pressure is constantly applied to the sterilizer 3.
\(), and the processed material is sequentially heated to a constant high temperature condition.
to be processed. In addition, since the processed material is pumped to the sterilizer@3 by air pressure, the 1111 type objects are not destroyed even if the processed material contains solid matter. Similar, completely sterile 15i
If 'J is desired, the air injected into the back pressure tank 5 needs to be sterile air, for example, passed through an air filter (not shown).

In addition, in the above case, the on-off valve 11 is opened and Iff]
The opening valve 12 is in a closed state.

With the killing device of the present invention, it is treated like a double series! Since the back pressure of the μ material is controlled using air as a medium, the back pressure can be controlled extremely accurately and quickly. In addition, a pump, etc. should be installed in the above device (d). Also, the eyes
It is possible to process to a good 9F without causing aging or destroying solid materials.

The processed material after sterilization is gradually stored in the back pressure tank 5,
Back pressure tank 5 arrives as processed material! When the on-off valve 11
is closed, the on-off valve 12 is opened, and the processed material is sent to the next process such as the filling and packaging process. The 4A quality of the pressure-feeding tank 1 and the back-pressure tank 5 may be any pressure-resistant material, and the shape is not particularly limited. Further, the air pressure in the pressure tank 1 and the back pressure tank 5 can be controlled by an air filter or the like, and the above tanks can have a stirring function if necessary.

In the sterilizer of the present invention, the processed material after sterilization can be cooled down to a certain level by the cooler 4. In this case, as the cooler 4, various types of heat exchangers such as a play type, a duplex type, a scraper set, etc. may be used.

In addition, in the above sterilizer, another example of the back pressure tank 5 is a sterile tank whose air pressure can be controlled like the back pressure tank 5 (air and soil control is performed by sterile air, not shown). The sterilizer 3J: is installed at the rear of the transfer pipe 18, and the air pressure is controlled by Ii'31.
Is there a pressure tank (not shown) available for transfer? 'a
It should be installed in an auxiliary back pressure pipe (not shown) that branches from the rear of the sterilizer 113 of No. 18.

In the above case, only the actual product is transferred to the sterile tank while being sterilized (with extremely stable back pressure) by air pressure controlled in a sterile tank or an auxiliary back pressure tank. Other processed materials can be collected and discharged into an auxiliary back pressure tank.

Note that a detailed example will be described later.

Next, the first 91st invention of the present invention will be explained. FIG. 2 is a flowchart showing a preferred embodiment of the sterilizer related to the first IJI invention, and is particularly suitable for continuously sterilizing processed materials that contain solids or have high viscosity. The present invention relates to a sterilization device suitable for.

Generally, when actually operating a sterilizer, the first step is to pre-inject the inside of the device under pressure to a temperature of 130 to 150
Sterilize the device by keeping it in hot water at ℃ for more than 30 minutes)
, as the second stage - C1, the cooling machine is operated in the above-mentioned sterilized state (main operation), as the third stage, switch from the above-mentioned main operation to the actual processing material (switching operation), as the fourth stage, - Completely switch to the actual processing material (actual liquid operation)
, will be operated following each of the above steps.

In the sterilizer of the present invention shown in FIG.
Machine 4 is the same as described above.

The water tank 2 is similar to the above-mentioned pressure tank 1, and the sterile tank 6 and the auxiliary back pressure tank 7 correspond to "double back pressure tanks 5", and each has a pressure sensor 17 and a pressure controller. 16, and has the function of constantly controlling the pressure inside the tank at a constant level. Here, only in the sterile tank 6, the pressure horn inside the tank is controlled by the sterile air tank 7-. The drawing pump 8 is preferably a monoscrew type pump that can minimize air leakage in the 1.1L device.
A Chew Pink type pump q is used. In addition, in the sterilizer of the present invention, instead of the above-mentioned drawing pump 8, a die A is used.
It is also possible to use valves such as 7 flam valves and ball valves.

In the sterilizer of the present invention, the auxiliary back pressure pipe 20 is connected to the pressure feeding tank 1.
sterilization of the transfer pipe 18 that connects to the sterile tank 6 (branching from the rear part of Iku 3, also JJ).
51 same part as above of transfer pipe 18 or auxiliary back pressure pipe 2
It branches from the part on the 1)a side of the auxiliary back pressure tank 7 of 0.

When the above-mentioned sterilizer is actually operated, the on-off valve 21 is opened at the first stage of sterilization of the device, and the water supplied to the water tank 2 is pneumatically charged; 3 and heated to usually 130-150°C.

In this stage II pond, the on-off valve 15 is opened, and the on-off valve 13.
14.22 is closed and the second cooler 4 is not in operation. Therefore, the hot water after heating is transferred to the transfer pipe 18,
Passing through the auxiliary back pressure pipe 20 and the drainage pipe 19, the pressure control valve 91-1--+-#1. *1111/'l<b)MtJ
Colus: Q11%l1I11+#kZrT11 "Since a certain back pressure is applied to the parts of the 1 pipe 20 and the drainage pipe 19 through which hot water passes, the water is sufficiently sterilized by the sterilizer 3, and after sterilization. The on-off valve 14 of the transfer pipe 1ε3 and the auxiliary back pressure pipe 20, through which the processed material to become the product passes, is heated by hot water.
The front part is sterilized.

In addition, when sending water to the sterilization station (3), it is also possible to use a Mono type pump, rotary type pump, etc., which have relatively high quantitative performance, instead of the water tank 2, which can control the air flow. be.

In addition, during the above-mentioned equipment sterilization stage, the hot water discharged from the drainage pipe 19 or the auxiliary back pressure pipe 20 often has a temperature of 27+A''C exceeding 100°C, and if this water is discharged as it is from the equipment. At the same time as JJI appeared, it was violently boiling 1
11ffilru. Therefore, it is preferable to provide the cold comb 11 2B at an appropriate position of the drainage pipe 19 or the auxiliary back pressure pipe 20. In this case, the cooling IN 28 can be provided using various types of heat exchangers such as a plate type, a duplex type, and a set of scrapers.

1rrI-717"7H&;lt'J<shiIIIL-
J Cold tJImAI, Tama i11+-,? -S P/Outside is ¥ above! The process is carried out in exactly the same manner as in the case of I apparatus bacteria, and when the water temperature after cooling 71 has fallen to, for example, around 50°C, the on-off valve 14 is opened and the on-off valve 15 is closed, and the on-off valve 15 is closed.
Water tank 2 After being heated and cooled, the water supplied into the device is passed through the Sode-suke-sei j1 river pipe 20 and then transferred to the auxiliary back-pressure tank 7.
from the auxiliary back pressure tank 7 to the extraction pump 8.
It is pulled out and discharged. In this case as well, a constant back pressure is applied to the sterilizer 3 by the air pressure of the auxiliary back pressure tank 7, so that the water is sufficiently sterilized and the sterile state of the transfer pipe 18 is maintained.

When the above-mentioned main operation is completed, the on-off valve 21 is closed, the on-off valve 22 is opened, and the treated material is supplied from the pressurized tank 1 into the apparatus, and the 11 water treated materials are removed during the main operation. IJI is taken out from the auxiliary back pressure pipe 20 in the same manner. Therefore, in the sterilizer of the present invention, by providing the above-mentioned auxiliary back pressure tank 7, even when the processed material contains solids or has high viscosity, the processed material containing water can be used as a product. It is now possible to discharge the sterilizer 3 outside the device while applying a constant back pressure to the sterilizer 3 as described above without collecting it in the sterile tank 6, and the processed material can be processed without clogging the device. becomes possible. That is, in this case, by the movement of the withdrawal pump 8, the water or the water-containing treated material sent to the auxiliary back pressure tank 7 is continuously pulled out from the auxiliary back pressure tank 7 and discharged. Ru. This results in
It is possible to continuously discharge the treated material mixed with water while applying a constant back pressure to the sterilizer 3.
When a valve is used in place of the handling pump 8, the valve can be opened and closed under certain conditions, and the material to be treated can be extracted using the air pressure of the auxiliary back pressure tank 7.

In addition, in the sterilizer of the present invention, the high humidity hot water heated by the sterilizer 3 does not pass through the extraction pump 8, so the extraction pump 8 can function even under high humidity 11 pressure. There is no need to use a special pump. In the present invention, if the above-mentioned drainage pipe 19 is not provided, the above-mentioned special pump is used as the withdrawal pump, and the hot water during device sterilization is also discharged from the auxiliary back pressure pipe 20. can be written.

In addition, in the sterilizer of the present invention, the processed material containing solid matter and the
A cooler such as a heat exchanger with a scraper that can pass 1A viscous material through the on-off valve 1 of the auxiliary back pressure pipe 20
4 and the auxiliary back pressure tank 7.

In this case, the hot water used for sterilizing the equipment should be cooled using a cooler.
II, and the withdrawal pump 8 is never placed under pressure. Therefore, even if the drainage pipe 19 is not installed, the auxiliary back pressure @ 20 can
IJ of processed materials during equipment sterilization, main operation and switching operation
L output is possible 6L roars.

Next, as described above, the inside of the device is sufficiently sterilized and the processed material is turned into a product. 13 is opened, and the processed material after heating and cooling is collected in the sterile tank 6.
k at the same time (or rotation, but sterile tank 6
The pressure inside the tank should be controlled to be as high as that of the auxiliary back pressure tank 7.
You can prevent this from happening. Therefore, the auxiliary back pressure pipe 20
There is substantially no need to sterilize the rear part of the on-off valve 14, and in this respect, the process is not complicated. Also, at this time, a constant back pressure is applied to the sterilizer by the air pressure controlled by the germ tank 6, and the processed material is sufficiently sterilized at high temperature. The recovered processed material is sent to the next process such as a filling and packaging process by opening the on-off valve 12 and is made into a product.

Next, the second combined invention of the present invention will be explained. FIG. 3 is a flow diagram showing a preferred embodiment of the sterilization device related to the second combined invention.

In FIG. 3, the equipment connected by the transfer tube 18 is the same as described above. Further, as the back pressure pump 10, it is preferable to use a Mono type pump, a piston type pump, a rotary type pump, etc., which have relatively high quantitative performance. The cooling IJ 28 and pressure control valve 9 are the same as those shown in FIG. 2 above.

Further, in this sterilizer, the auxiliary back pressure pipe 20 and the IJI water pipe 19 are branched from the transfer pipe 18 or the auxiliary back pressure pipe 20, as in the case of FIG.

When actually operating this sterilizer, first =
At the stage of device sterilization, water tank 2 is removed in the same manner as described above.
The water supplied into the device by pneumatic pressure is passed through the sterilizer 3.
and heated. The hot water after heating is transferred to cold JJI machine 4 (
(not in operation), transfer pipe 18, auxiliary back pressure pipe 20
, II Mizukawa one, cold 231 machine 28, for example 1
After being cooled to 00° C. or below, it is discharged from the apparatus through an 11 valve 9 that controls the pressure. At this time, a certain back pressure is applied to the sterilizer 3 by the pressure control valve 9 mentioned above, and the water is constantly heated and sterilized in a certain line '1'. The portions of the transfer pipe 18 and the auxiliary back pressure pipe 20, through which the product passes, in front of the on-off valve 14 are sufficiently sterilized. Note that this gap [MJ valves 13, 14, and 22 are closed, and the on-off valve 15
is being left out.

When the second stage 11t starts its actual operation, the chiller 1 machine 4 begins to operate, and the point at which the temperature of the water after passing through the chiller 141 machine 4 is cooled down to, for example, 50 degrees Celsius or less. Then, the operation of the cooler 28 is stopped, the on-off valve 15 is closed, and the LTU quiet valve 14 is opened. Therefore, in this case, the back pressure pump 10 installed in the auxiliary pressure pipe 20 is
It is possible to apply a constant back pressure to the sterilizer 3 using the back pressure pump 10 without placing it under heat. In addition, the actual product does not pass through this part, and furthermore, the internal pressure of the sterile tank 6 is higher than the back pressure applied by the back pressure pump 10. Therefore, the product actually passes through from the back pressure pump 10. Since it is possible to prevent bacteria from entering the back pressure pump 10, there is no need to use a pump that can withstand high temperature and high pressure and is sterile.

Next, after the main operation becomes stable, the on-off valve 21 is closed and the on-off valve 22 is opened, whereby the processed material to be the product is supplied from the pressure feeding tank 1 and the operation is switched to rush operation. In this case, as in the above case, a certain amount of pressure is applied to the sterilizer 3 by the back pressure pump 10, and the water-containing product is assisted without destroying the sterile condition in the device 8. It can be discharged from the back pressure pipe 20.

Next, when the process is completely switched to the product, the valve 111 is opened and closed, and the opening/closing valve ↑13 is released.
The product begins to be collected in 211 (bacteria tank 6).

The above-mentioned sterile tank 6 is equipped with a pressure sensor 17 and pressure controllers 1 to 16, has a function of constantly controlling the pressure inside the tank, and is pressure resistant.

Therefore, even during rush operation, the sterilizer 3 has the above-mentioned
1 ((J): A constant back pressure is constantly applied to the air pressure controlled in the bacteria tank 6.

Finally, the product collected in the bacteria tank 6 is sent to the next process such as the filling and packaging process by closing the on-off valve 13 and leaving the on-off valve 12 open.

Next, in Hohatcho (Puru 3rd annexation station 1111) (＼
Theory 111'j-! I. FIG. 4 is a diagram showing a preferred embodiment of the sterilizer according to the third 91st invention.

In FIG. 4, the equipment connected by transfer tube 18 is the same as described above. Maruko cold IJI t
ffl 26 is a material that can pass solids.
−−Direct・ −I−■ ・P →１ Downhill, small, red habume island dingle is used. The green juice pump 10 is based on the above-mentioned second.
The ones in Figure 3 are the same.

In addition, in this sterilizer, the back pressure drainage pipe 27 is connected to the pressure feeding tank 1.
Transfer pipe 1 connected to sterile tank 6 t3 ciA
It branches off from the visual acuity part from IjJ13.

When actually operating this sterilizer, the first step is to sterilize the device in the same way as in the case of -C. The hot water supplied into the device from the water tank 2 and heated by the sterilizer 3 Cold 1! The solid 193 can be passed through the JI814 (not in operation), the transfer pipe 18, and the back pressure II Mizukawa 27. After being cooled to, for example, 100°C or less at 26, it is discharged to the outside of the device via the pressure pump 10. be done. Here, the above cold 2J
+ II 26 is installed in front of the back pressure pump 10 of the Mizukawa tube 27 and closer to the sight than the on-off valve 25. Therefore, when sterilizing the above equipment, cold fill
126, the back pressure pump 10 is not exposed to high temperatures. As a result, a constant back pressure is applied to the sterilizer 3 by the above-mentioned back pressure pump 10, and water is constantly supplied at a constant level.4. Sl is removed, and the parts of the transfer pipe 18 through which the product passes and the back pressure 1/1 water pipe 27 in front of the on-off valve 25 are thoroughly sterilized. At this time, the on-off valve 22.
13 is closed (131), and the on-off valve 25 is open.

In addition, in this sterilizer, cold 2J11 and 26
Due to the action of the back pressure pump 101iLi-":I:
! +A (in addition, the actual product does not pass through this part, and as in the case of FIG. By setting the height higher than that, it is possible to prevent bacteria from entering the part where the product actually passes from the back pressure pump 10. Therefore, as the back pressure pump 10, a pump that can withstand high temperature and high pressure and has sterile specifications is used. There is no need to use it.

When entering the second stage of water operation, the cooling units 1 and 4 begin to operate, and when the temperature of the water after passing through the cooling unit 4 reaches a temperature of, for example, 50°C or lower, the cooling unit 4 starts operating. 26 will stop operating. Therefore, in this case as well, the back pressure pump 10 is not placed under an extremely high temperature, and the sterilization IM 3 should be subjected to a constant back pressure by the back pressure pump 10. At this time, the valve closing state (11i) is the same as in the case of device sterilization described above.

Next, after the above water operation is stabilized, the on-off valve 2 of the water tank 2
By closing the on-off valve 1 and opening/closing the on-off valve 22, the processed material to be the product is supplied from the pressure tank 1, and the operation is switched to rush operation. At this time, since the material to be treated t is sent by air pressure, the solids contained therein are not destroyed, and the sterilizer 3 is equipped with a back pressure pump 1
A constant back pressure is applied by the back pressure drain pipe 27 to remove the water-containing product from the back pressure drainage pipe 27 without destroying the sterile condition inside the device.
I can get 1.

Next, when the process is completely changed to a product, the on-off valve 25 is closed, the on-off valve 13 is opened, and the product begins to be collected into the sterile tank 6.

The above-mentioned sterile tank 6 has a function of constantly controlling the pressure inside the tank at a constant level using air pressure (sterile air),
It is also pressure resistant. Therefore, even during rush operation, a constant back pressure is constantly applied to the sterilizer 3 by the air pressure controlled by the sterile tank 6.

Finally, the product collected in the sterile tank 6 is transferred to the on-off valve 13.
is closed, the on-off valve 12 is opened, and the product is sent to the next process such as the filling and packaging process.

According to the sterilizer 6 related to the second and third regular inventions described above, the back pressure pump is removed from the pipe that passes through the product (N), and the back pressure pt171C is reduced by the action of the cold 7.11 machine.
The key is to apply a constant back pressure to the sterilizer without exposing the sterilizer to extremely high temperature and pressure. Continuously sterilize the processed material and collect only the product into a sterile tank while maintaining the sterile state
'I yell.

Secondly, the sterilizer of the present invention sterilizes the processed material under constant high temperature conditions while stably applying back pressure to the sterilizer using the air pressure of the pressure tank and the back pressure tank. It is possible to control the back pressure properly [
Furthermore, the sterilizer of the present invention can be used as a sterilizer with a wide range of < -11tO, and as an aseptic filling device that requires strict sterilization conditions. I! ! l of course < lη
)1 If it contains hair or is highly viscous [Komo, Sou U
I) It does not cause clogging, etc., nor does it break or leak solid materials, and is particularly useful for sterilizing liquid foods containing solids, viscous foods, pharmaceuticals, etc., and for aseptic filling. It is very effective when processing by hand.

[Brief explanation of the drawing]

The drawing shows one embodiment of the sterilizer of the present invention.
Figure 2 shows a sterilizer that applies back pressure to a pressure tank and a back pressure tank. Sterilizer that applies back pressure by
The figure shows a pressure-feeding tank and ffJ, a bacteria tank or a pressure-feeding tank, and a 12-bacterium device for back pressure. It is a flow diagram showing a sterilization device in which the back pressure is 7J1 (] by the tank or 1.1 pressure, the feeding tank and the back pressure pump. 1... Pressure feeding tank, 2... Water tank,
3...Kill. Bacterial machine, 4.28...1 cold moon, 5...back pressure tank, 6...sterile tank, 7...auxiliary back pressure tank, 8...
...Pump for extraction, 9...Pressure control valve,
1゜・・・Back pressure pump, 11~15.21.2
2.25...Opening/closing valve, 1G...Pressure controller 1~1''-ra, 17...Pressure refill'-1
18... Transfer pipe, 19... Drainage pipe, 2o... Auxiliary back pressure pipe, 23... Pressure operation valve, 24...・Air filter, 26・
・・・・・・Cold Nl that can pass through solid matter, 27
...Back pressure II water pipe.

Claims (6)

[Claims] (1) At least a pressure tank capable of controlling the air pressure for pumping the processed material to the sterilizer and the sterilizer, and a back pressure tank that can control the air pressure behind the sterilizer. A sterilizer comprising a tank, and applying back pressure to the sterilizer through the pressure tank and the back pressure tank. (2) The sterilizer +, X according to claim (1), wherein the sterilizer is a sterilizer for filling y++ (bacteria). (3) The back pressure tank is composed of a sterile tank and an auxiliary back pressure tank, and the sterile tank is connected to a transfer pipe for sterilization. The sterilizer according to claim 1, characterized in that the sterilizer is installed in a pressure pipe. (4) At least a sterilizer, a pressure that can control the air pressure for pumping the processed material to the sterilizer, a feeding tank, and a sterile tank that can control the air pressure provided at the rear of the sterilizer; It consists of an auxiliary back pressure tank, a JJI Mizukawa horn control valve, and a withdrawal pump for withdrawing the processed material from the auxiliary back pressure tank, and the sterile tank is connected to the sterilizer by a transfer pipe. The auxiliary back pressure tank and the withdrawal pump are installed in an auxiliary back pressure pipe that branches from the transfer pipe, and the pressure control valve is installed in a drainage pipe that branches from the transfer pipe or the auxiliary back pressure pipe. A sterilizer, characterized in that back pressure is applied to the sterilizer by the pressure feed tank and the sterile tank, or the pressure feed tank and the auxiliary back pressure tank, or the pressure feed tank and the pressure control valve. (5) At least a sterilizer, a pressure-feeding tank that can control the air pressure for pumping the processed material to the sterilizer, a sterile tank that can control the air pressure provided at the rear of the sterilizer, and a back pressure pump; and a pressure control valve for drainage, the sterile tank is connected to the sterilizer by a transfer pipe, the back pressure pump is connected to an auxiliary back pressure pipe branching from the transfer pipe, and the pressure control valve is connected to the sterilizer by a transfer pipe. A valve is installed in a drainage pipe branching and covering the transfer pipe or the auxiliary back pressure pipe, and the valve is installed in the drainage pipe branching and covering the transfer tank and the sterile tank, or the pressure tank and the back pressure pump, or the pressure tank and the pressure control 1311 valve. A sterilizer characterized by applying back pressure to the sterilizer. (6) At least a sterilizer, a pressure-feeding tank that can control the air pressure for pumping the sterilizer, and a sterile tank that can control the air pressure installed at the rear of the sterilizer;
The sterile tank is connected to the sterilizer through a transfer pipe, and the back pressure pump and the cooler are branched from the transfer pipe. 1. A sterilizer, which is installed in a back pressure drainage pipe, and applies back pressure to the sterilizer by the pressure feed tank and the sterile tank, or the pressure feed tank and the back pressure pump.