WO2007040004A1

WO2007040004A1 - Low-temperature insect killing apparatus, method and material treated thereby

Info

Publication number: WO2007040004A1
Application number: PCT/JP2006/317344
Authority: WO
Inventors: Masayuki Teranishi
Original assignee: Q.C.M. Ltd.
Priority date: 2005-10-05
Filing date: 2006-09-01
Publication date: 2007-04-12
Also published as: JP2009000001A

Abstract

In the conventional low-temperature insect killing treatment, at the time of taking out of treated material from the low-temperature storage shed after low-temperature storage, occasionally the treated material at low temperature is brought into contact with ambient air to cause dew condensation on the surface thereof leading to wetting of the treated material with the result that the quality thereof is deteriorated. There is provided a low-temperature insect killing apparatus comprising low-temperature storage shed (11) for storing of a treatment object material having pest insects mixed therein or having the danger thereof; cooling unit (12) for cooling of the interior of the low-temperature storage shed (11) to low temperature; and warming unit (13) for warming of the interior of the low-temperature storage shed (11). Using the apparatus, the interior of the low-temperature storage shed (11) storing the treatment object material having pest insects mixed therein is cooled and maintained at low temperature for a given period of time by the use of the cooling unit (12). After being maintained at low temperature for a given period of time while storing the treatment object material having pest insects mixed therein, the interior of the low-temperature storage shed (11) or the treatment object material therein is warmed to temperature close to or not lower than the dew-point temperature of ambient air by the use of the warming unit (13). In this manner, the pest insects mixed in treatment object materials are killed.

Description

Specification

Low temperature insecticidal apparatus, method, and objects to be treated

Technical field

[0001] The present invention relates to a low-temperature insecticidal apparatus and method for performing an insecticidal treatment on an object to be treated such as agricultural products, food, animal fibers, and plant fibers mixed with pests, and these objects to be treated.

Background art

[0002] Conventionally, methods for controlling food pests mixed in food such as stored agricultural products and food materials include insecticide methods by heating, insecticide methods by gas agents and chemicals, insecticide methods by light and radiation, etc. There were apparatuses for carrying out the method. For example, in the pest control apparatus described in Patent Document 1, an example is described in which an object to be treated is heated at 60 ° C. for 40 minutes. The shape and color of the food may change, the nutrients contained in the food may change, and the flavor may deteriorate.

[0003] In the extinguishing apparatus using a gas agent or chemical, it is necessary to construct an airtight container for the extinguishing process, and it is difficult to handle and the gas agent or chemical is scattered outside. In some cases, gas agents and chemicals may remain on the workpiece. In addition, depending on the type and concentration of the gas agent or drug, it may not be possible to completely remove the pests and their eggs mixed in the material to be treated.

[0004] In the extermination method using light and radiation, it is necessary to handle the light and radiation strictly, and there is a possibility that a by-product may be generated by irradiating the workpiece with the light or radiation.

[0005] As described above, heat treatment, treatment with a gas agent or chemical agent, treatment with light or radiation, and the like are easy treatments, while maintaining product value such as flavor and quality of the object to be processed. It was difficult and effective to kill the eggs effectively.

[0006] On the other hand, in recent years, as an insecticidal treatment method for killing pests and their eggs while maintaining the flavor, appearance, and quality of stored agricultural products and foods, for example, covered agricultural products and foods, etc. Low-temperature insecticidal treatments have been carried out in which pests and their eggs are killed by performing treatments that maintain the treated material at a low temperature of about 30 ° C or lower.

By performing insecticidal treatment using this low-temperature insecticidal method, it is possible to easily kill contaminated pests and their eggs without reducing the value of stored agricultural products, food materials, animal and plant fibers, etc. Become.

Patent Document 1: Japanese Patent Laid-Open No. 11-155454

Disclosure of the invention

Problems to be solved by the invention

[0007] As described above, the process of keeping the processed products such as stored agricultural products and foods at a low temperature is performed in a low-temperature storage room where the processed materials are set at a low temperature of about 30 ° C or lower for a certain period of time. Although it is realized by storing, when the object to be processed is taken out from the low temperature storage after low temperature storage, if the object to be processed is exposed to the outside air in a low temperature state, dew condensation occurs on the surface of the object to be processed.

In particular, when the temperature difference between the outside air and the object to be processed is large, or when the outside air humidity is high, a large amount of this condensed water is generated, and the packaging material of the object to be processed becomes wet and soft. The packaging material may be damaged, and the commercial value of the processed material may be reduced, or the packaging of the stacked processed material may cause collapse of the load.

Also, it is made of fibers such as hemp bags and paper bags, wrapped in bags, and the processed material that is the contents of the processed material that has penetrated into the bag. May get wet and cause quality degradation.

[0008] In order to prevent the formation of condensed water on the surface of the object to be treated, after a certain period of low-temperature storage in the low-temperature storage, the low-temperature storage of the low-temperature storage is stopped and the natural temperature rises. Wait until the inside of the low-temperature storage reaches the outside temperature due to the temperature. Just take out the material to be processed.1S Since the time required for natural temperature rise takes a long time, the operating rate of the equipment decreases and the operation cost increases. There was a problem.

[0009] In addition, since the low temperature storage used for the low temperature processing of the workpiece is fixed, the owner of the workpiece itself owns the low temperature storage! / Cunning! In cases such as dredging, when processed materials are stocked away from the low temperature storage, the processed materials must be transported to the low temperature storage. In short, it is necessary to return it to the owner of the processed object after processing, which incurs the cost of transporting the processed object and takes several days to transport the processed object.

In particular, if the amount of low-temperature storage treatment and the number of treatments increase, the burden of transportation costs and days will increase.

[0010] Therefore, in the present invention, when performing an insecticidal treatment of an object to be processed by low-temperature storage, it is possible to reduce the cost by performing the insecticidal treatment in a short time without causing quality deterioration due to condensed water. The present invention provides a low-temperature insecticidal apparatus and method that can be used, and an object to be treated that has been treated by these low-temperature insecticidal apparatus and method.

Means for solving the problem

[0011] A low-temperature insecticidal apparatus and method for solving the above problems, and an object to be processed by these have the following characteristics.

That is, the low-temperature insecticidal apparatus of the present invention includes a low-temperature storage for storing an object to be treated that may or may be mixed with a pest, a cooling device for cooling the inside of the low-temperature storage to a low temperature, A heating device that heats the inside of the low-temperature storage, and the cooling device cools the inside of the low-temperature storage in which the object to be treated mixed with pests is stored and kept at a low temperature for a certain period of time. The temperature in the low-temperature storage after being kept at a low temperature for a certain time in a state where the processed material contaminated with pests is stored, or the temperature of the processed material is near the dew point temperature of the outside air Or, by heating to a temperature that is above the dew point temperature, insecticidal treatment of pests mixed in the material to be treated is performed.

As a result, it is possible to prevent condensation on the surface of the object to be processed and to maintain the quality of the object to be processed.

In addition, it is possible to shorten the time until the object to be processed reaches a temperature near the dew point temperature of the outside air or a temperature higher than the dew point temperature, and to increase the amount of the object to be processed per hour at which the insecticidal treatment can be performed. It is possible to improve the operating rate of the low temperature insecticidal device and reduce the operation cost.

[0012] The cooling holding temperature in the low-temperature storage by the cooling device is 30 ° C or less.

Thereby, it becomes possible to perform the insecticidal process of a to-be-processed object reliably.

[0013] In addition, the low temperature insecticidal device has a transport frame that can move the low temperature insecticidal device. Thereby, for example, the operator can easily move the low temperature insecticide simply by pressing the low temperature insecticide.

In addition, it becomes easy to mount the low temperature insecticidal device on a loading platform such as a transportation truck or tow it by a transportation truck.

[0014] Further, the low temperature insecticidal device includes a remote control device that performs operation and management of the low temperature insecticidal device by remote geopower of the low temperature insecticidal device.

As a result, the operation and management of the low temperature insecticide device can be performed from a remote location, and the operation of the low temperature insecticide device can be performed unattended except when the object to be processed is taken in and out of the low temperature storage. Labor costs for the insecticidal treatment of processed products can be reduced.

[0015] Further, the object to be treated is an agricultural product, food, animal fiber, plant fiber, feather, or wood product.

As a result, it is possible to protect various kinds of objects to be treated against the harmful power of pests.

[0016] Further, in the low temperature insecticidal method of the present invention, the object to be treated is mixed with a pest or possibly mixed, and stored in a low temperature storage cooled to a low temperature for a certain period of time. Heat the inside of the low-temperature storage to a temperature at which the temperature in the low-temperature storage or the temperature of the object to be processed is a temperature near the dew point temperature of the outside air or a temperature equal to or higher than the dew point temperature, and the inside of the low temperature storage is opened to the outside air. .

[0017] The cooling temperature in the low-temperature storage is -30 ° C or lower.

[0018] The object to be treated is an agricultural product, food, animal fiber, plant fiber, feather, or wood product. As a result, it is possible to protect various kinds of objects to be treated against the harmful power of pests.

[0019] Further, the article to be treated of the present invention is an article to be treated which has been subjected to insecticidal treatment against a pest that is mixed or possibly mixed, and the insecticidal treatment is performed by a cooling device. A low-temperature treatment in which a processed object is stored in a cooled low-temperature storage for a certain period of time, and after the low-temperature processing, the temperature in the low-temperature storage or the temperature of the processed object is outside air in the low-temperature storage in which the processed object is stored. It consists of a heating process in which it is heated by a heating device to a temperature near or above the dew point temperature.

[0020] The cooling temperature in the low-temperature storage in the low-temperature treatment is 30 ° C or lower.

[0021] Further, the object to be treated is an agricultural product, food, animal fiber, plant fiber, feather, or wood product.

As a result, it is possible to protect various kinds of objects to be treated against the harmful power of pests. The invention's effect

[0022] According to the present invention, it is possible to prevent the occurrence of condensation on the surface of the object to be processed, and to maintain the quality of the object to be processed.

Brief Description of Drawings

FIG. 1 is a perspective view showing a low temperature insecticidal apparatus according to the present invention.

FIG. 2 is a side sectional view showing the inside of the low temperature insecticidal device. [FIG. 3] FIG. 3 is a diagram showing temperature curves during the insecticidal treatment of the atmosphere in the low temperature storage and the object to be processed stored in the low temperature storage.

FIG. 4 is a side cross-sectional view showing an example in which a cooling fan and a defrosting heater provided in a cooling device of a low-temperature insecticidal device are used as a blowing fan and a heating element of the heating device, respectively.

FIG. 5 is a perspective view showing a low-temperature insecticidal device provided with a transportation platform.

FIG. 6 is a perspective view showing a low temperature insecticidal device provided with a remote control device.

Explanation of symbols

[0024] 1 Low temperature insecticidal device

11 Low temperature storage

12 Cooling device

13 Heating device

13a blower fan

13b Heating element

BEST MODE FOR CARRYING OUT THE INVENTION

Next, embodiments for carrying out the present invention will be described with reference to the accompanying drawings.

[0026] A low temperature insecticide 1 shown in Fig. 1 includes a low temperature storage 11 for storing an object to be processed, a cooling device 12 for cooling the inside of the low temperature storage 11 to a low temperature, and heating the inside of the low temperature storage 11 And a heating device 13 to be used.

An open / close door 11a is provided on one side surface of the low temperature storage 11, and the object to be processed is taken into and out of the low temperature storage 11 from the open / close door 11a.

As the cooling device 12, for example, a device that is used for a commercially available freezer or the like, compresses the refrigerant gas with a motor, and cools the inside with the heat of vaporization can be used.

[0027] Examples of materials to be treated with the low-temperature insecticidal apparatus 1 include kinako, sesame, chili, green paste, Onna Azuki, power chime, almond, honey apple, wheat, barley, buckwheat, soybean Stored agricultural products and foods such as cereal flour, dried cereals, dried cocoons, and derived products thereof are applied. [0028] As shown in FIG. 2, the heating device 13 is attached to, for example, one side surface of the low temperature storage 11, and the inside of the heating device 13 and the inside of the low temperature storage 11 communicate with each other through a connection port l ib. is doing.

Further, the heating device 13 includes a blower fan 13a and a heating element 13b. The air in the low temperature storage 11 is taken into the heating device 13 by the blower fan 13a, and the taken-in air is converted into the heating element 13b. It is configured to return to the low temperature storage 11 after heating at. That is, by operating the heating device 13, the temperature of the air in the low temperature storage 11 can be forcibly increased and heated.

As the heating element 13b in the heating device 13, for example, an electric heater or a hot water heater is used.

[0029] In the low-temperature insecticidal apparatus 1 configured as described above, an insecticidal process by low-temperature storage of an object to be processed will be described.

When pesticides are applied to stored agricultural products or foods that are contaminated with pests or possibly contaminated with pests, the door 11a is opened and the processed materials are stored in the low temperature storage 11 Store in. After closing the door 11a and sealing the inside of the low temperature storage 11, the cooling device 12 is operated to cool the inside of the low temperature storage 11.

Here, the “pest” mixed or possibly mixed with the object to be treated includes not only adults such as insects, moths and larvae but also eggs.

Examples of insects that may cause harmful insects include, for example, Sugikonadarameiga, Jinsanbushimushi, Kokuzomushi, Kurigamiga, Kishigizomushi, Tobacco Shimushi, Azukikimushi, Kokunus Tomodoki, Hiratakokunusutomodoku, Kokomokumushi, and the like.

[0030] Further, the cooling device 12 cools the inside of the low temperature storage 11 so that the inside of the low temperature storage 11 is maintained at a predetermined temperature for a predetermined time.

The process of holding the inside of the low-temperature storage 11 in which the object to be processed is kept at a low temperature of a predetermined temperature for a predetermined time is a process having an insecticidal effect on pests mixed in the object to be processed.

[0031] When performing this low temperature treatment, the cooling temperature in the low temperature storage 11 is preferably set to a temperature of about 30 ° C or lower.

This is because many types of pests do not die at temperatures below 30 ° C. In order to achieve the purpose of insecticidal treatment, it is preferable to cool the inside of the cold storage 11 to a temperature of about 30 ° C or lower.

In other words, by cooling the inside of the low temperature storage 11 to a temperature of about −30 ° C. or less, it becomes possible to reliably carry out the insecticidal treatment of the object to be processed.

Conversely, when the temperature is set to about 20 ° C., for example, most kinds of pests cannot be killed, and it becomes difficult to achieve the purpose of the insecticidal treatment.

However, if, for example, the type of pests mixed in the material to be treated is specified and the extinction temperature of the specified pests is 20 ° C or less, the cooling temperature in the low temperature storage 11 It is possible to carry out insecticidal treatment even if the temperature is set to about 20 ° C or less.

In addition, if the pest power contained in the material to be treated is killed at a temperature of about 10 ° C, the insecticidal treatment can be performed even if the cooling temperature in the low temperature storage 11 is set to about 10 ° C or less. Is possible.

FIG. 3 shows an example of setting conditions for performing the insecticidal treatment.

In the case of Fig. 3, the cooling temperature setting of the cooling device 12 is periodically changed between the temperature Tsc in the low-temperature storage 11 during cooling Tsc at TC ° C and the range up to TL ° C. The temperature setting is such that the periodic fluctuation from TU ° C to TL ° C is repeated for time ta. For example, TC ° C is set to 35 ° C, TU ° C is set to 30 ° C, TL ° C is set to —40 ° C, and the cold storage 11 is only for the time ta— The temperature will be kept below 30 ° C.

This time ta is set as appropriate so that the insect pests are killed by the cooling temperature setting of the cooling device 12.

[0034] The atmosphere in the low temperature storage 11 is cooled to a temperature of 30 ° C or less in a short time after the operation of the cooling device 12, and during the time ta until the operation of the cooling device 12 is stopped. Although the temperature of the object to be treated is large, the temperature of the object to be treated during cooling is Tmc. Is actually maintained at a temperature of 30 ° C or lower, and is a time tb shorter than the time ta.

[0035] Here, the temperature setting for cooling the inside of the low temperature storage 11 is TC ° C, TU ° C as described above. And TL ° C may be set individually for each. Also, only TC ° C, which is the center temperature, is set, and TU ° C and TL ° C fluctuate as a result of repeated operation and stoppage of the cooling device 12 to keep the internal temperature at TC ° C. It may be considered as the upper and lower limits of the fluctuation of the internal temperature.

[0036] Further, if the temperature in the low temperature storage 11 is maintained at about -30 ° C or lower, an insecticidal effect can be obtained even if the temperature is not changed and is maintained at a constant temperature.

The term “insecticide” in this description includes not only killing adults such as insects, pupae and larvae, but also losing egg hatching ability.

In this example, in the insecticidal treatment process, the temperature Tsc of the atmosphere in the low temperature storage 11 during cooling is kept at a predetermined temperature (for example, 30 ° C. or less) for a predetermined time (for example, time tb). However, it is also possible to cool the inside of the low temperature storage 11 so that the temperature Tmc of the workpiece itself stored in the storage is maintained at a predetermined temperature for a predetermined time.

[0037] In this manner, by cooling the cooling device 12, the inside of the low temperature storage 11 is maintained at a predetermined temperature for a predetermined time, and after the insect pests mixed in the workpiece are killed, the operation of the cooling device 12 is stopped. Then, the operation of the heating device 13 is started.

When the operation of the heating device 13 is started, the air in the low temperature storage 11 is taken into the heating device 13 by the blower fan 13a, and the air that has been taken in is heated by the heating element 13b, and then in the low temperature storage 11 Therefore, the atmosphere in the low temperature storage 11 is forcibly heated, and the temperature Tsh in the low temperature storage 11 at the time of heating rises.

[0038] The heating performed by circulating air between the inside of the low temperature storage 11 and the inside of the heating device 13 by the heating device 13 described above is to be stored in the low temperature storage 11 during the heating. This is performed until the temperature Tmh of the treated product is heated to a temperature near or above the dew point temperature of the outside air. That is, the heating control by the heating device 13 is performed based on the temperature Tmh of the object to be processed stored in the low temperature storage 11.

When the object to be processed is heated to a temperature near the dew point temperature of the outside air or until it reaches the dew point temperature, the operation of the heating device 13 is stopped, the door 1 la is opened, and the object to be processed in the low temperature storage 11 is removed. Take out.

[0039] Here, the dew point temperature of the outside air is a temperature determined by the temperature and humidity of the outside air. The dew point temperature is the temperature at which the unit water vapor amount contained in the outside air (for example, the amount of water vapor per cubic meter of outside air) becomes the saturated water vapor amount.

In addition, the temperature near the dew point temperature is a temperature that is several degrees lower than the dew point temperature, and a force that causes a slight dew condensation when the workpiece touches the outside air at that temperature. Only a certain degree of condensation has occurred without affecting the quality of the physical packaging!

On the other hand, if the object to be processed is exposed to the outside air in a state where the temperature of the object to be processed is lower than the temperature near the dew point temperature, the quality of the object to be processed or the packing is improved. Condensation to the extent that it will affect will occur.

[0040] Therefore, after the temperature of the object to be processed is heated to a temperature near the dew point temperature of the outside air or higher than the dew point temperature, the object to be processed is taken out from the low temperature storage 11 to be processed. The surface of the substrate is prevented from causing condensation to affect the quality of the object to be processed and the packaging, and the quality of the object to be processed is maintained.

Note that the starting temperature of heating by the heating device 13 depends on the cooling temperature in the low temperature storage 11 by the cooling device 12 described above. For example, when the cooling temperature in the low temperature storage 11 is 30 ° C, it is -30 ° C. When C is the heating start temperature and the cooling temperature in the low temperature storage 11 is -10 ° C, 10 ° C is the heating start temperature.

That is, the heating device 13 warms the object to be processed until it reaches a temperature near the dew point temperature of the outside air or higher than the dew point temperature, regardless of the cooling temperature in the low temperature storage 11.

In this case, if the heat capacity of the object to be processed is small and there is almost no difference between the temperature Tsh in the low temperature storage 11 and the temperature Tmh of the object to be processed in the heating process, the temperature Tsh in the low temperature storage 11 is It can also be heated to a temperature near or above the dew point temperature of the outside air. That is, the heating control by the heating device 13 can be performed based on the temperature Tsh in the low temperature storage 11.

[0041] Further, the time from when the operation of the cooling device 12 is stopped until the workpiece reaches a temperature near the dew point temperature of the outside air or higher than the dew point temperature due to the heating of the heating device 13 is tc. The time from when the operation of the cooling device 12 is stopped until the temperature Tmn of the workpiece at the time of natural temperature rise reaches the temperature near or above the dew point temperature of the outside air due to the natural temperature rise tr (See Fig. 3). Here, the natural temperature rise means that the temperature Tsn in the low-temperature storage 11 is set in a state in which the operation of the cooling device 12 is stopped and the door 11a is not opened and the low-temperature storage 11 is left closed. Ascend naturally!

[0042] In this manner, after the insecticidal treatment process at a low temperature is completed, the heating device 13 is used to change the atmosphere in the low temperature storage 11 so that the temperature in the low temperature storage or the temperature of the object to be processed is near the dew point temperature of the outside air. By configuring the apparatus to be heated to a temperature equal to or higher than the temperature or the dew point temperature, the time until the object to be processed reaches a temperature near the dew point temperature of the outside air or a temperature equal to or higher than the dew point temperature can be shortened.

As a result, the amount of workpieces that can be treated with insecticidal treatment can be increased, the operating rate of the low-temperature insecticidal device 1 can be improved, and the operation cost can be reduced.

Note that the insecticidal treatment method performed in the low temperature insecticidal apparatus 1 consists of the insecticidal treatment process at a low temperature and the object to be treated in the low temperature storage 11 at a temperature near the dew point temperature or higher than the dew point temperature by the heating apparatus 13. And a heating step of heating until.

Further, as shown in FIG. 4, in the present low temperature insecticide 1, the cooling device 12 is provided with V, the cooling fan 12a, and the defrosting heater 12b, respectively. It can also be used as the three blower fans 13a and the heating element 13b.

In this way, it is necessary to separately attach the heating device 13 by heating the inside of the low-temperature storage 11 using the cooling fan 12a and the defrosting heater 12b provided in the cooling device 12. The low-cost insecticidal device 1 can be reduced in cost.

[0044] Further, in the low temperature insecticidal apparatus 1, a microwave generator is provided, and the object to be processed is irradiated with microwaves (radio waves having a frequency of about 300 MHz to 30 GHz) generated by the microwave generator. Thus, the workpiece can be directly heated.

In this way, since the object to be processed itself generates heat directly when heated by microwaves, the inside of the low temperature storage 11 is heated by the heater 12b, and the heat conduction from the atmosphere around the object to be processed results in the heat treatment. Compared with the case where the workpiece is heated, it can be heated with high heating efficiency, and the heating time of the workpiece can be further shortened.

In addition, since the microwave has a high-speed response performance, the temperature of the object to be processed can be easily controlled by adjusting the heating time and output. [0045] Further, as shown in FIG. 5, the low temperature insecticidal apparatus 1 may be provided with a transport base 21 that allows the low temperature insecticidal apparatus 1 to be easily moved.

The transport platform 21 includes an installation base 21a on which the low-temperature insecticidal apparatus 1 is installed, and a wheel 21b that is attached to the installation base 21a so as to rotate freely. For example, when the operator simply presses the low-temperature insecticidal apparatus 1, The low temperature insecticidal device 1 is constructed so that it can be moved easily.

In addition, by providing the low temperature insecticidal apparatus 1 with the carriage 21, it becomes easy to mount the low temperature insecticidal apparatus 1 on a loading platform such as a transportation truck or tow it with a transportation truck or the like. .

In addition, as shown in FIG. 6, a remote control device comprising a communication device 15 attached to the low temperature insecticidal device 1 and a terminal device 16 capable of wireless communication with the communication device 15 is referred to as the low temperature device. In preparation for the insecticidal device 1, the operation of the terminal device 16 can be used to operate the low temperature insecticidal device 1, monitor the temperature during operation, and manage the entry / exit of processed objects in the low temperature storage 11. In addition, various operations can be performed.

Thus, by providing the low temperature insecticide device 1 with the remote control device composed of the communication device 15 and the terminal device 16, the operation and management of the low temperature insecticide device 1 can be performed remotely, and the object to be processed Since the low temperature insecticidal device 1 can be operated unattended except when the container is taken in and out of the low temperature storage 11, labor costs for the insecticidal treatment of the object to be processed can be reduced.

[0047] Although stored agricultural products and foods are applied in this example as the objects to be treated with the low-temperature insecticidal apparatus 1 of the present invention, animal fibers such as wool and silk, which are not limited to this, It is also possible to use plant fibers such as cotton and hemp, as well as feathers and wood products, etc. As described above, this low-temperature insecticidal device 1 allows various types of materials to be treated from pest damage. It is possible to protect.

Industrial applicability

[0048] The present invention can be applied to an insecticidal treatment of an object to be processed by low-temperature storage in a short time without causing quality deterioration due to condensed water, and in particular, the object to be processed is an agricultural product, food, animal or the like. It can be applied when it is a fiber, vegetable fiber, feather or wood product.

Claims

The scope of the claims

[1] A low-temperature storage for storing objects to be treated that may or may be contaminated with pests;

A cooling device for cooling the inside of the low-temperature storage to a low temperature;

A heating device for heating the inside of the low-temperature storage;

The cooling device cools the inside of the low-temperature storage in which the object to be processed that contains or may be mixed with pests is kept at a low temperature for a certain period of time,

The inside of the low-temperature storage after being kept at a low temperature for a certain time in a state in which an object to be treated that may or may be mixed with the pest is stored in the low-temperature storage by the heating device. Or the temperature of the object to be treated is close to the dew point temperature of the outside air or a temperature that is equal to or higher than the dew point temperature.

Insecticide treatment of pests mixed in the object to be treated

A low-temperature insecticidal device characterized by that.

[2] The cooling holding temperature in the low-temperature storage by the cooling device is 30 ° C or lower.

The low-temperature insecticidal apparatus according to claim 1, wherein

[3] The low-temperature insecticidal apparatus according to claim 1 or 2, wherein the low-temperature insecticidal apparatus has a transport frame that allows the low-temperature insecticidal apparatus to move.

[4] The low-temperature insecticidal apparatus includes a remote control device that performs a remote operation of the low-temperature insecticidal apparatus to perform operation management of the low-temperature insecticidal apparatus. Low temperature insecticidal equipment.

[5] The low-temperature insecticidal apparatus according to any one of claims 1 to 3, wherein the object to be treated is agricultural products, food, animal fibers, plant fibers, feathers, or wooden products.

[6] Store the object to be treated, which may or may be contaminated with pests, in a cold storage room cooled to a low temperature for a certain period of time.

Thereafter, the inside of the low-temperature storage is heated to a temperature at which the temperature in the low-temperature storage or the temperature of the object to be processed is a temperature near the dew point temperature of the outside air or a temperature equal to or higher than the dew point temperature. Open,

A low-temperature insecticidal method characterized by that.

7. The low-temperature insecticidal method according to claim 6, wherein the cooling temperature in the low-temperature storage is 30 ° C or lower.

[8] The low-temperature insecticidal method according to claim 6 or 7, wherein the object to be treated is agricultural products, food, animal fibers, plant fibers, feathers, or wood products.

[9] To-be-treated material that has been subjected to insecticidal treatment against pests that are or may be contaminated.

The insecticidal treatment is

Low temperature processing for storing the object to be processed in a low temperature storage cooled by a cooling device for a certain period of time;

After the low-temperature treatment, the inside of the low-temperature storage in which the object to be processed is stored is heated up to the temperature in the low-temperature storage or the temperature of the object to be processed is close to the dew point temperature of the outside air or higher than the dew point temperature. It consists of a heating process that heats by,

An object to be treated.

[10] The cooling temperature in the low temperature storage in the low temperature treatment is 30 ° C or less.

The object to be processed according to claim 9, wherein:

[11] The article to be treated according to [9] or [10], wherein the article to be treated is an agricultural product, food, animal fiber, plant fiber, feather, or wood product.