Smoking system

Abstract

This system provides a smoking system that avoids risks such as charring and deformation of the outer surface of the container, while also being less prone to smoke generation failure. [Solution] A smoking system comprising a smoke agent container 10 filled with a smoke agent R, and a heating device 20 separate from the smoke agent container 10, wherein the smoke agent container 10 has a flat bottom and a lid 12 positioned on top of it has a plurality of smoke vents 17, and the heating device 20 has a heating element 22 that generates heat with electricity, and the heating element 22 has a flat mounting surface on its upper surface on which the smoke agent container 10 is placed, and by supplying electricity to the heating element 22 to generate heat, and placing the smoke agent container 10 filled with the smoke agent R on the mounting surface of the heated heating element 22, the smoke agent R is heated and smoke is released from the plurality of smoke vents 17.

Description

[Technical Field]

[0001] This invention relates to a smoking system. [Background technology]

[0002] A fumigation device is a device that uses heat to release and diffuse pesticides into the air by heating a fumigant containing an exothermic base such as an organic foaming agent and an active ingredient such as a chemical agent, thereby controlling harmful organisms. Smoking equipment includes indirect heating type smoking equipment and direct heating type smoking equipment. In the case of indirect heating type smoking equipment, the smoking agent is heated using a heating agent that reacts with water to generate heat. In the case of direct heating type smoking equipment, a portion of the smoking agent is directly heated using an ignition device to cause combustion (Patent Documents 1 and 2). [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2018-064480 [Patent Document 2] Japanese Patent Publication No. 2011-193874 [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] However, indirect heating type smoking devices carry the risk of insufficient smoke generation if the amount of water reacted with the heating agent is incorrect. Also, in direct heating type smoking devices, the smoking agent is typically ignited by rubbing the ignition part with a striking plate, but because it reaches higher temperatures than indirect heating type smoking devices, there is a risk of charring or deformation of the outer surface of the container. In view of the above circumstances, the present invention aims to provide a smoking system that avoids risks such as charring and deformation of the outer surface of the container, while also being less prone to smoke generation failure. [Means for solving the problem]

[0005] To achieve the above objectives, the present invention employs the following configuration. [1] A fumigant container filled with a fumigant, and a heating device separate from the fumigant container, Multiple smoke vents are formed in the upper part of the aforementioned fumigation container. The heating device has a heating element that generates heat using electricity. A smoking system configured to heat the fumigant by supplying power to the heating element of the heating device to generate heat, and by bringing the heated heating element into direct or indirect contact with the fumigant filled in the fumigant container, thereby heating the fumigant and releasing smoke from the plurality of smoke holes.

[0006] [2] A fumigant container filled with a fumigant, and a heating device separate from the fumigant container, The aforementioned fumigation container has a flat bottom and multiple smoke vents formed at the top. The heating device has a heating element that generates heat using electricity, and the heating element has a flat mounting surface on its upper surface on which the fumigant container is placed. A smoking system configured to heat the smoking agent by supplying power to the heating element of the heating device to generate heat, and by placing the smoking agent container filled with the smoking agent on the aforementioned surface of the heated heating element, thereby heating the smoking agent and releasing smoke from the plurality of smoke holes.

[0007] [3] A fumigant container filled with a fumigant, and a heating device separate from the fumigant container, The aforementioned fumigation container has a recess formed in the bottom or side, and multiple smoke vents formed in the top. The heating device has a heating element that generates heat using electricity, and the heating element is shaped to fit into the recess formed in the fumigant container. A smoking system configured to heat the fumigant by supplying power to the heating element of the heating device to generate heat, and by fitting the heated heating element into the recess formed in the fumigant container filled with the fumigant, thereby heating the fumigant and releasing smoke from the plurality of smoke holes.

[0008] [4] A fumigant container filled with a fumigant, and a heating device separate from the fumigant container, A plurality of smoke passage holes are formed in the upper part of the fumigant container, The heating device has a heating element that generates heat by electricity, and the heating element is in a shape that can be pierced into the bottom or side surface of the fumigant container, By supplying power to the heating element of the heating device to generate heat, and piercing the heated heating element into the bottom or side surface of the fumigant container filled with the fumigant and inserting it into the fumigant container, the fumigant is heated so that smoke can be released from the plurality of smoke passage holes. A fumigation system is configured. [Effects of the Invention]

[0009] According to the fumigation system of the present invention, while avoiding the risk of burning and deformation on the outer peripheral surface of the container, the fumigant can be smoked in a good state. [Brief Description of the Drawings]

[0010] [Figure 1] It is a longitudinal sectional view of a fumigant container in the fumigation system of the first embodiment. [Figure 2] It is a top view of a fumigant container in the fumigation system of the first embodiment. [Figure 3] It is a longitudinal sectional view of a heating device in the fumigation system of the first embodiment. [Figure 4] It is a view showing the state during fumigation of the fumigation system of the first embodiment. [Figure 5] It is a longitudinal sectional view of a fumigant container in the fumigation system of the second embodiment. [Figure 6] It is a longitudinal sectional view of a heating device in the fumigation system of the second embodiment. [Figure 7] It is a view showing the state during fumigation of the fumigation system of the second embodiment. [Figure 8] It is a longitudinal sectional view of a fumigant container in the fumigation system of the third embodiment. [Figure 9] It is a longitudinal sectional view of a heating device in the fumigation system of the third embodiment. [Figure 10] It is a figure which shows the state at the time of smoking of the smoking system of 3rd Embodiment.

Mode for carrying out the invention

[0011] The smoking system of the present invention includes a smoking agent container filled with a smoking agent and a heating device separate from the smoking agent container. A plurality of smoke passage holes are formed in the upper part of the smoking agent container. Further, the heating device has a heating element that generates heat by electricity. The smoking system of the present invention can discharge smoke from a plurality of smoke passage holes of the smoking agent container by heating the smoking agent filled in the smoking agent container with the heating element of the heating device.

[0012] The heating of the smoking agent by the heating element is performed by supplying power to the heating element to generate heat and bringing the heated heating element into direct contact with the smoking agent filled in the smoking agent container or indirectly through the smoking agent container. Hereinafter, embodiments of the present invention will be described, but the present invention is not limited to the following embodiments.

[0013] <First Embodiment> The smoking system of the present embodiment is composed of the smoking agent container 10 shown in FIGS. 1 and 2 and the heating device 20 shown in FIG. 3. The smoking agent container 10 includes a container body 11 having a bottomed cylindrical shape with an open upper end, and a lid body 12 attached to the opening at the upper end of the container body 11.

[0014] As shown in FIGS. 1 and 2, the container body 11 has a cylindrical body side surface 13 and a body bottom surface 14 that closes the lower end of the body side surface 13, and can accommodate the smoking agent R inside. The material of the container body 11 is not particularly limited, but from the viewpoint of heat transferability and strength, it is preferably made of aluminum.

[0015] The thickness of the main body side surface 13 is preferably 0.02 to 5 mm, and more preferably 0.025 to 0.2 mm. If the thickness of the main body side surface 13 is above the preferred lower limit, it will be less prone to tearing and easier to handle. If it is below the preferred upper limit, it will be easier to process during manufacturing.

[0016] The thickness of the base 14 of the main body is preferably 0.02 to 0.04 mm, and more preferably 0.025 to 0.03 mm. If the thickness of the base 14 of the main body is above the preferred lower limit, it will be less likely to tear and easier to handle. If it is below the preferred upper limit, heat transfer from the heating element 22 (described later) to the fumigant R inside will be good. The main body bottom surface 14 constitutes the bottom of the fumigation agent container 10 and is a flat, circular plate. Although the main body bottom surface 14 is flat, some irregularities are permissible as long as they do not hinder heat transfer from the heating element 22 described later.

[0017] The diameter of the bottom surface 14 of the main body on the inner surface of the container body 11 is preferably 15 to 40 mm, and more preferably 20 to 35 mm. The area of ​​the bottom surface 14 on the inner surface of the container body 11 is 150 to 1300 mm². 2 Preferably, 300-1000mm 2 More preferably, 700-800mm 2 That is even more preferable. If the diameter or area of ​​the base surface 14 of the main body is above a preferred lower limit, a sufficient amount of smoking agent can be filled, resulting in a good smoking rate. If it is below a preferred upper limit, the smoking time is shortened, resulting in a good smoking rate.

[0018] The thickness of the lid 12 is preferably 0.02 to 5 mm, and more preferably 0.025 to 0.2 mm. If the thickness of the lid 12 is above the preferred lower limit, it will be less likely to tear and easier to handle. If it is below the preferred upper limit, it will be easier to process during manufacturing.

[0019] The lid 12 has multiple smoke vents 17 formed therein. The smoke vents 17 may be circular, elliptical, or polygonal (triangle, square, hexagon, etc.) in plan view. Furthermore, they may be polygonal with curved corners. From the standpoint of ease of manufacturing, a circular shape is preferred. From the viewpoint of ensuring uniformity of smoke distribution and preventing leakage of fine particles, the smoke vents 17 are preferably provided evenly on the lid 12, and the distance from one end of smoke vent 17 to the end of an adjacent smoke vent 17 is preferably 1.5 to 4.5 mm, and more preferably 2 to 3.5 mm.

[0020] The opening diameter of the smoke vent 17 is preferably 0.3 to 2 mm, more preferably 0.6 to 1.5 mm, and even more preferably 1.0 to 1.3 mm. Having the opening diameter of the smoke vent above the lower limit of the above preferred range facilitates the release of volatilized fumigant R into the air. Having it below the upper limit of the above preferred range makes it easier to prevent fine powder leakage, where the finely pulverized fumigant R leaks out into the outside in powder form. Furthermore, if the smoke vent 17 is elliptical in plan view, the opening diameter shall be the average of its major and minor axes. If the smoke vent 17 is polygonal in plan view, the opening diameter shall be the diameter of the inscribed circle or ellipse (in the case of an ellipse, the average of its major and minor axes).

[0021] The opening ratio of the smoke vents 17 (the ratio of the total opening area of ​​all smoke vents 17 to the area of ​​the bottom surface 14 on the inner surface of the container body 11) is preferably 1 to 11 area%, more preferably 1.8 to 6.2 area%, and even more preferably 3.1 to 4.7 area%. When the opening ratio is within the above range, smoking can proceed smoothly, and leakage of fine powder can be easily suppressed. Furthermore, as the opening ratio increases, the strength of the lid 12 weakens and processing becomes more difficult, but by keeping it within the above range, it is possible to create a lid that is easy to manufacture and has sufficient strength. As for specific embodiments of the cover 12, including the shape and arrangement of the smoke vents 17, for example, a cover disclosed in Japanese Patent Publication No. 2018-64480 can be adopted.

[0022] As shown in Figure 3, the heating device 20 comprises a heating device body 21 and a heating element 22. The heating element 22 is a heating element that generates heat using electricity and has a flat mounting surface 22a on its upper surface on which the fumigant container 10 is placed. Although the mounting surface 22a is flat, some irregularities are permissible as long as they do not hinder heat transfer to the bottom surface 14 of the main body.

[0023] In Figure 3, the heating element 22 is shown as a flat, circular plate. However, for example, to facilitate the alignment of the fume agent container 10, a step may be provided on the mounting surface 22a so that it is one level lower than the surrounding area of ​​the upper surface of the heating element 22. Furthermore, multiple alignment steps may be provided to accommodate multiple types of fumigation containers 10 with different area sizes of the bottom surface 14 (area on the inner surface of the container body 11).

[0024] The heating device body 21 is roughly cylindrical with a bottom, and a recess 21a is formed on the inside of the bottom. The heating element 22 is fixed in place on a support column 23 erected in this recess 21a. As shown in Figure 3, the upper surface of the heating element 22 is positioned lower than the upper surface of the heating device body 21, thus reducing the risk of hands or other objects coming into contact with the heated heating element 22. A battery 24 is built into the bottom of the heating device body 21, and a wire 25 for supplying power to the heating element 22 is connected from the battery 24 to the heating element 22 via the support column 23.

[0025] The fumigant R contained in the fumigant container 10 is in the form of a solid preparation, which can be, for example, a powder, granules, or tablets. The average particle size of the fumigant R is preferably 1 mm to 4 mm, and more preferably 1.5 mm to 3.3 mm. If the average particle size of the fumigant R is within the above range, it is efficiently smoked and easily dispersed, and fine powder leakage is easily suppressed. The ratio expressed as the average particle size of the fumigant R / the opening diameter of the smoke vent 17 is preferably 0.5 to 10, and more preferably 1.0 to 5. If the average particle size of the fumigant R / the opening diameter of the smoke vent is within the above range, it is easier to achieve both suppression of fine powder leakage and normal fumigation.

[0026] The average particle size can be measured using the following method. Classification is performed using a sieve shaker with 10 sieves, each with a mesh size of 5600 μm, 4000 μm, 3350 μm, 2800 μm, 2360 μm, 2000 μm, 1400 μm, 1180 μm, 1000 μm, and 100 μm, arranged in that order from top to bottom, with a receiving tray at the bottom. Next, the mass of the granules recovered from each sieve and the receiving tray is measured. The mass frequency is added to the granules recovered in the receiving tray, starting with the granules remaining on the sieves with the smallest mesh sizes, and the accumulated mass frequency is defined as "a μm" for the first sieve with a mesh size of 50% or more, and as "b μm" for the sieve with a mesh size one size larger than a μm. Furthermore, the cumulative mass frequency from the receiving tray to the sieve with a mesh size of a μm is defined as "c%", and the mass frequency of granules on the sieve with a mesh size of a μm is defined as "d%". Using these values ​​a to d, the DM50 (50% mass diameter) calculated by the following formula (1) is defined as the average particle diameter.

[0027]

number

[0028] The bulk density of the fumigant R when filled into the fumigant container 10 is preferably 0.5 to 0.7 kg / L, more preferably 0.60 to 0.70 kg / L, and even more preferably 0.65 to 0.69 kg / L. Having a bulk density of fumigant R above the preferred lower limit allows for a reduction in the smoking time per unit of fumigant R. Having a bulk density below the preferred upper limit makes it easier to avoid the fumigant R overflowing during smoking.

[0029] The bulk density of the fumigant R when filled into the fumigant container 10 can be adjusted by passing it through sieves with different mesh sizes. The bulk density is measured using the following procedure. 1. Fill a suitable container with water to the brim, and measure the weight of the container after removing it. 2. Calculate the volume of the container from the measured weight and the specific gravity of water. 3. Fill the container to the brim with the fumigant, and measure the weight of the container excluding the fumigant. Calculate the bulk density from the volume calculated in 4.2 and the weight measured in 3.

[0030] The composition of the fumigant R is not particularly limited as long as it allows for the volatilization of active ingredients for controlling pests by heating, but it is preferable that it contains an organic foaming agent and an active ingredient such as a chemical agent. It may also contain combustion aids, stabilizers, binders, excipients, fragrances, etc.

[0031] Examples of active ingredients include metals such as silver and copper. The metal may be a pure metal or a metal compound. Examples of silver compounds include silver oxide, silver chloride, silver nitrate, silver sulfate, silver carbonate, silver sulfonate salts, and inorganic silver salts. Among these, elemental silver, silver oxide, and silver nitrate are preferred. The copper compound can be either an inorganic metal compound or an organometallic compound. Examples of inorganic copper compounds include copper chloride (CuCl2, CuCl), copper sulfate (CuSO4), copper iodide (CuI2), copper nitrate, copper sulfide, copper phosphate, copper ammonium chloride, copper hydroxide, and copper oxide. Examples of organocopper compounds include copper oxalate.

[0032] If the active ingredient is a metal, it is also preferable to support it on a carrier and incorporate it as a metal carrier. Examples of carriers include zeolites, silica gel, low molecular weight glass, calcium phosphate, silicates, and titanium dioxide. Among these, calcium phosphate and zeolites are preferred as carriers. The specific surface area of ​​the carrier is, for example, 100 to 600 m². 2 It is expressed as / g.

[0033] When the active ingredient is a metal-supported drug, the metal content (amount supported) in the metal-supported drug is preferably 4% by mass or more, and more preferably 5 to 10% by mass, relative to the total mass of the metal-supported drug. If the amount of metal supported is above a preferred lower limit, the number of bonding points between the metal support and the nonionic surfactant increases, making it less likely to be washed away by moisture after adhering to walls, ceilings, floors, equipment, etc., that make up the treated space, thereby improving the duration of the control effect. If it is below a preferred upper limit, the metal is uniformly dispersed in the treated space, exhibiting a higher control effect in every corner of the treated space. The amount of material to be carried can be determined from the elemental ratio of the metal to the support using an X-ray fluorescence analyzer.

[0034] When the active ingredient is a metal-supported drug, the volume-average particle size is preferably 0.1 to 7 μm, and more preferably 1 to 4 μm. If the volume-average particle diameter is above a preferred lower limit, the particles will settle more easily after diffusion, shortening the time it takes for the effect to manifest in the lower part of the treated space. If it is below a preferred upper limit, the volatilization rate will be increased, and diffusion over a wider area will be possible.

[0035] The volume-average particle diameter is a value obtained by a laser diffraction / scattering particle size distribution analyzer, and can be measured as follows: A metal support is dispersed in distilled water to a solid content of 1% by mass to prepare a sample. This sample is placed in a laser diffraction / scattering particle size distribution analyzer, dispersed by ultrasound within the analyzer, and then irradiated with a laser to measure the particle size distribution. The diameter at which the cumulative volume frequency reaches 50% (volume) is defined as the average particle diameter.

[0036] The content of the active ingredient, the pesticide, is preferably 0.1 to 3% by mass, and more preferably 0.5 to 2.5% by mass, relative to the total mass of the fumigant R. If the content of the fumigant R is above the lower limit, the control effect can be further enhanced. If the content of the fumigant R is below the upper limit, it will volatilize more uniformly, further enhancing the initial control effect.

[0037] Furthermore, to enhance the persistence of the effect of the metal support, it is also preferable to incorporate a nonionic surfactant together with the metal support. Nonionic surfactants have the effect of adhering metal supports to the surface being treated and keeping them in place (adhesion effect). Therefore, by including nonionic surfactants, even in places where water frequently flows, such as bathroom walls, the metal supports attached to the surface being treated are less likely to be washed away by water (excellent water resistance), thus increasing the duration of the pest control effect.

[0038] Organic foaming agents are substances that generate a large amount of heat through thermal decomposition by heating or combustion, as well as releasing carbon dioxide, nitrogen gas, etc. Fumigants containing organic foaming agents release the active ingredient in a short time, causing it to volatilize. Examples of organic blowing agents include azodicarbonamide (ADCA), nitrocellulose, p,p'-oxybis(benzenesulfonyl hydrazide), N,N'-dinitrosopentamethylenetetramine, and azobisisobutyronitrile. Among these, azodicarbonamide and nitrocellulose are preferred due to their low decomposition temperature and high generation of foaming gas. These may be used individually or in combination of two or more.

[0039] The content of the organic blowing agent is preferably 55 to 85% by mass, and more preferably 65 to 85% by mass, based on the total mass of the self-spraying space treatment agent composition. If the content of the organic blowing agent is above the lower limit, the active ingredients such as pesticides can be volatilized more quickly and in larger quantities, thereby further enhancing the duration of the pest control effect. If the content of the organic blowing agent is below the upper limit, the amount of active ingredients such as pesticides can be increased.

[0040] The amount of fumigant R to be filled into the fumigant container 10 is preferably 1 to 15 g, and more preferably 3 to 7 g. A filling amount of fumigant R above the lower limit of the preferred range results in a good rate of smoke generation. A filling amount below the upper limit of the preferred range results in a good amount of smoke generation.

[0041] The amount of smoke agent R to be filled into the smoke agent container 10 x (g) is the area y (mm²) on the inner surface of the container body 11 at the bottom surface 14 of the main body. 2) and y / x are preferably quantities such that the relationship is between 40 and 200, and more preferably quantities such that the relationship is between 60 and 170. When y / x is above the lower limit of the preferred range, spillage during smoking is less likely to occur. When it is below the upper limit of the preferred range, the smoking time per unit amount of smoking agent R can be shortened, resulting in a good smoking speed.

[0042] As shown in Figure 4, during smoking, a fumigant container 10 filled with fumigant R is placed on the mounting surface 22a of a heating element 22 that has been heated to a pre-set temperature by power supplied from the battery 24. As a result, the heating element 22 comes into indirect contact with the fumigant R via the fumigant container 10, which heats the fumigant R, causing it to volatilize and release smoke from the multiple smoke vents 17.

[0043] The heating temperature (set temperature) of the heating element 22 is preferably 250 to 500°C, more preferably 280 to 450°C, and even more preferably 300 to 400°C. By keeping the heating temperature of the heating element 22 above a preferred lower limit, the smoking time per unit of smoke agent R can be shortened. By keeping it below a preferred upper limit, spillage during smoking is less likely to occur. It is preferable to maintain the temperature of the heating element 22 at the set temperature until smoking is complete. After smoking, only the smoke agent container 10 needs to be discarded.

[0044] <Second Embodiment> The smoking system of this embodiment consists of a smoking agent container 30 shown in Figure 5 and a heating device 40 shown in Figure 6. As shown in Figure 5, the fumigation agent container 30 comprises a bottomed cylindrical container body 31 with an open top end, and a lid 32 that is fitted onto the opening at the top end of the container body 31.

[0045] The container body 31 has cylindrical side surfaces 33 and a bottom surface 34 that closes the lower end of the side surfaces 33, and is designed to accommodate the fumigant R inside. The material of the container body 31 is the same as that of the container body 11 in the first embodiment. Also, the preferred thickness of the side surface 33 of the body is the same as that of the side surface 13 of the body in the first embodiment.

[0046] The main body bottom surface 34 constitutes the bottom of the fumigation agent container 30, and has a recess 35 formed in the center of a circular plate-like surface. The recess 35 is shaped to accommodate the heating element 42, which will be described later, so that the heating element 42 can be fitted into it. The preferred thickness of the main body bottom surface 34 is the same as the preferred thickness of the main body side surface 33, except for the recessed portion 35. The preferred thickness of the recessed portion 35 is the same as that of the main body bottom surface 14 in the first embodiment.

[0047] The preferred range of diameter and area of ​​the main body bottom surface 34 on the inner surface of the container body 31 is the same as that of the main body bottom surface 14 in the first embodiment. The lid 32 has a plurality of smoke vents 37 formed therein. A preferred embodiment of the lid 32 is the same as that of the lid 12 in the first embodiment.

[0048] As shown in Figure 6, the heating device 40 comprises a heating device body 41 and a heating element 42. The heating element 42 is a rod-shaped body with a tapered tip that generates heat using electricity. There are no limitations on the cross-sectional shape of the heating element 42, but it can be a polygon such as a circle or a square, for example. The heating element 42 is shaped and sized to fit into the recess 35 of the fumigant container 10.

[0049] The heating device body 41 is roughly cylindrical with a bottom, and a recess 41a is formed on the inside of the bottom. The heating element 42 is fixed on a support column 43 erected in this recess 41a, with its tapered tip facing upwards. As shown in Figure 6, the tip of the heating element 42 is positioned lower than the top surface of the heating device body 41, thus reducing the risk of hands or other objects coming into contact with the heated heating element 42. A battery 44 is built into the bottom of the heating device body 41, and a wire 45 for supplying power to the heating element 42 is connected from the battery 44 to the heating element 42 via the support column 43.

[0050] The preferred embodiment of the fumigant R contained in the fumigant container 30 is the same as in the first embodiment. The amount x (g) of fumigant R filled into the fumigant container 30 is the area y (mm²) of the bottom surface 34 on the inner surface of the container body 31. 2 ) is preferably a quantity such that y / x is between 40 and 200, and more preferably between 70 and 170.

[0051] When y / x is above the lower limit of the preferred range, spillage during smoking is less likely to occur. When it is below the upper limit of the preferred range, the smoking time per unit of smoke agent R can be shortened. Note that area y(mm) 2 ) also includes the area of ​​the lower end opening of the recess 35.

[0052] As shown in Figure 7, during smoking, the heating element 42, which has been heated to a pre-set temperature by power supplied from the battery 44, is fitted into the recess 35 of the smoke agent container 30. As a result, the heating element 42 comes into indirect contact with the smoke agent R via the smoke agent container 30, heating the smoke agent R, causing it to volatilize, and releasing smoke from the multiple smoke vents 37. The preferred heating temperature (set temperature) of the heating element 42 is the same as the heating temperature of the heating element 22 in the first embodiment. It is preferable to maintain the temperature of the heating element 42 at the set temperature until the smoking is finished. After smoking, only the smoke agent container 30 needs to be discarded.

[0053] <Third Embodiment> The smoking system of this embodiment consists of a smoking agent container 50 shown in Figure 8 and a heating device 60 shown in Figure 9. As shown in Figure 8, the fumigation agent container 50 comprises a bottomed cylindrical container body 51 with an open top end, and a lid 52 that is fitted onto the opening at the top end of the container body 51.

[0054] The container body 51 has cylindrical side surfaces 53 and a bottom surface 54 that closes the lower end of the side surfaces 53, and is designed to accommodate the fumigant R inside. The material of the container body 51 is the same as that of the container body 11 in the first embodiment. Also, the preferred thickness of the side surface 53 of the body is the same as that of the side surface 13 of the body in the first embodiment.

[0055] The main body bottom surface 54 constitutes the bottom of the fumigant container 50, and a thin-walled section 55 is formed in the center of the circular plate-like surface. The preferred thickness of the main body bottom surface 54 is the same as the preferred thickness of the main body side surface 53, except for the thin-walled portion 55. The preferred thickness of the thin-walled portion 55 is the same as that of the main body bottom surface 14 in the first embodiment.

[0056] The preferred range of diameter and area of ​​the main body bottom surface 54 on the inner surface of the container body 51 is the same as that of the main body bottom surface 14 in the first embodiment. The cover 52 has a plurality of smoke vents 57 formed therein. A preferred embodiment of the cover 52 is the same as that of the cover 12 in the first embodiment.

[0057] As shown in Figure 9, the heating device 60 comprises a heating device body 61 and a heating element 62. The heating element 62 is a rod-shaped body with a tapered tip that generates heat using electricity. There are no limitations on the cross-sectional shape of the heating element 62, but it can be a polygon such as a circle or a square, for example. The heating element 62 is shaped to be inserted into the thin-walled portion 55 of the fumigant container 10.

[0058] The heating device body 61 is roughly cylindrical with a bottom, and a recess 61a is formed on the inside of the bottom. The heating element 62 is fixed on a support column 63 erected in this recess 61a, with its tapered tip facing upwards. As shown in Figure 9, the tip of the heating element 62 is positioned lower than the top surface of the heating device body 61, thus reducing the risk of hands or other objects coming into contact with the heated heating element 62. A battery 64 is built into the bottom of the heating device body 61, and a wire 65 for supplying power to the heating element 62 is connected from the battery 64 to the heating element 62 via the support column 63.

[0059] The preferred embodiment of the fumigant R contained in the fumigant container 50 is the same as in the first embodiment. The filling amount x (g) of the fuming agent R into the fuming agent container 50 of the fuming agent R is preferably such that y / x is in the range of 40 to 200, and more preferably 70 to 170, where y (mm 2 ) is the area on the inner surface of the container body 51 of the main body bottom surface 54.

[0060] When y / x is at least the lower limit of the preferable range, spillage during fuming is less likely to occur. When it is at most the upper limit of the preferable range, the fuming time per filling amount of the fuming agent R can be shortened. Note that the area y (mm 2 ) includes the area of the thin-walled portion 55.

[0061] As shown in FIG. 10, during fuming, the heating element 62 heated to a preset temperature by the supply of power from the battery 64 is inserted into the container body 51 by piercing the thin-walled portion 55. As a result, the heating element 62 directly contacts the fuming agent R, so that the fuming agent R can be heated, volatilized, and smoke can be discharged from the plurality of smoke holes 57. The preferable heating temperature (set temperature) of the heating element 62 is the same as the heating temperature of the heating element 22 in the first embodiment. The temperature of the heating element 62 is preferably maintained at the set temperature until the fuming ends. After fuming, only the fuming agent container 50 needs to be discarded.

[0062] <Other Embodiments> In each of the above embodiments, the container body of the fuming agent container is a bottomed cylindrical shape, but the shape of the bottom surface is not limited to a circle, and may be, for example, a polygon such as a quadrilateral. Also, although the lid body is a separate body separable from the container body, for example, the two may be joined by a hinge or the like, or may be completely integrated after filling the fuming agent R.

[0063] Also, in the heating device of each of the above embodiments, the heating element is supported by a support column, but the heating element may be provided directly on the heating device main body without using the support column. For example, a flat disk-shaped heating element may be embedded on the upper surface of a flat plate-shaped heating device main body such that its upper surface is flush with the upper surface of the heating device. Furthermore, although batteries were used as the power source in the above embodiments, a power cord connected to an external power source may also be used.

[0064] Furthermore, in the second embodiment, the recess 35 for fitting the heating element 42 is provided on the bottom surface 34 of the main body of the fumigation agent container 30, but it may also be provided on the side surface 33 of the main body. Similarly, in the third embodiment, the thin-walled portion 55 into which the heating element 62 is inserted is provided on the bottom surface 54 of the main body of the fumigant container 50, but it may also be provided on the side surface 53 of the main body.

[0065] Furthermore, although the tip of the heating element 42 in the second embodiment is tapered and triangular when viewed from the side, the tip of the heating element 42 may be, for example, curved. Alternatively, the entire heating element 42 may be columnar without a tapered portion. Furthermore, although the fumigant container 10 in the first embodiment and the fumigant container 30 in the second embodiment were to be discarded after use, they may be reused by refilling them with new fumigant.

[0066] <effect> Because this invention uses a heating element that generates heat using electricity, temperature control is easy and smoke generation failures are less likely to occur. In addition, charring and deformation of the outer surface of the container are less likely to occur. Furthermore, since the fumigant container and the heating device are separate, multiple types of fumigant containers of different sizes (with different amounts of fumigant) can be attached to a single heating device depending on the size of the processing space. In addition, multiple types of fumigant containers with different compositions of fumigant can be attached depending on the desired effect in the processing space. For example, if you prepare cartridges containing different types of fumigants for different spaces such as the living room, bathroom, and toilet, you can perform the fumigation using a single heating device. [Examples]

[0067] <Evaluation Method> Each sample was smoked using the respective smoking system. The time from the moment smoke was detected until the end of the smoking process (smoking time) was measured, and it was visually confirmed whether the filled smoking agent spilled out during the smoking process.

[0068] [Speed ​​of smoking] The following criteria were used to evaluate the performance based on the smoking time [seconds] per [gram] of the fumigant used. ◎: Less than 4.4 [seconds / g]. ○: 4.4 [seconds / g] or more and less than 11 [seconds / g]. ×: 11[sec / g] or more.

[0069] [Boiling over] Based on the amount of spillage observed visually, the following criteria were used for evaluation. ◎: The fumigation agent did not overflow from the container. ○: Smoking residue adhered to the inside of the lid, but did not spill out of the container. ×: The lid detached due to the force of the smoke caused by the rapid increase in pressure inside the container, and the fumigant spilled out of the container.

[0070] <Smoke System> [Smoke agent and container] A cylinder was created using aluminum tape with a thickness of 0.12 mm and a width of 50.8 mm. The base diameter (inner diameter of the cylinder) was set to one of the following, depending on the example: 15 mm, 20 mm, 30 mm, 35 mm, or 40 mm. After constructing the container body by attaching a 0.012 mm thick aluminum sheet to the bottom of the cylinder, the container body was filled with a fumigant in the appropriate volume and composition for each example, at the appropriate bulk density for each example. Then, an aluminum sheet similar to the one used for the bottom was attached as a lid to seal the top of the cylinder. The lid was formed with a number of 1 mm diameter smoke vents, evenly and uniformly distributed throughout, according to the specific case. The bulk density was adjusted by passing the material through sieves with different mesh sizes.

[0071] [Smoking Method] In each example, the fumigant was heated and smoked using one of the following methods:

[0072] Heating Method A: This method uses a heating element with a flat surface on which the fumigant container is placed as the heating device. Specifically, the fumigant container was heated by placing it on a digital hot plate (C-MAG HP4, manufactured by IKA Systems Co., Ltd., maximum temperature 500°C) that had been preheated to a set temperature.

[0073] Heating Method B: This method uses a heating element that can be inserted into the bottom of the fumigation agent container as a heating device. Specifically, a soldering iron (FX-600, manufactured by Hakko Corporation, maximum temperature 500°C), which had been preheated to a set temperature, was fixed in place 3 cm upwards from the bottom of the fumigation agent container and heated.

[0074] <Fumigation agent> [Raw materials] The raw materials used in the preparation of the fumigant are as follows: • Silver-supported zeolite-based inorganic antibacterial agent (product name: Zeomic® AJ10N, volume-average particle size 2.5 μm, true specific gravity 2 g / cm³) 3 (20℃), bulk density 0.4 g / cm³ 3 (20℃, silver content 2.5% by mass, manufactured by Sinanen Zeomic Co., Ltd.) • Azodicarbonamide (ADCA) (Product name: Divelow AC.2040(C), manufactured by Dainichi Seika Kogyo Co., Ltd.). • Zinc oxide (Japanese Pharmacopoeia Zinc Oxide, average particle size 0.6 μm, true specific gravity 5.6 g / cm³) 3 (20℃, manufactured by Sakai Chemical Industry Co., Ltd.) • Polyoxyethylene polyoxypropylene block polymer (product name: Pluronic® RPE1740, manufactured by Nagase & Co., Ltd.). • Hydroxypropyl methylcellulose (HPMC) (product name: Metroze® 60SH-50, manufactured by Shin-Etsu Chemical Co., Ltd.).

[0075] [composition] In each example, a fumigant was prepared with one of the following compositions. Composition 1: Silver-supported zeolite-based inorganic antimicrobial agent: 3.5% by weight, azodicarbonamide: 81.4% by weight, zinc oxide: 1.2% by weight, polyoxyethylene polyoxypropylene block polymer: 9.3% by weight, hydroxypropyl methylcellulose: 4.6% by weight.

[0076] Composition 2: Silver-supported zeolite-based inorganic antibacterial agent: 3.5% by weight, azodicarbonamide: 72.1% by weight, zinc oxide: 1.2% by weight, polyoxyethylene polyoxypropylene block polymer: 18.6% by weight, hydroxypropyl methylcellulose: 4.6% by weight.

[0077] Composition 3: Silver-supported zeolite-based inorganic antibacterial agent: 3.5% by weight, azodicarbonamide: 62.8% by weight, zinc oxide: 1.2% by weight, polyoxyethylene polyoxypropylene block polymer: 27.9% by weight, hydroxypropyl methylcellulose: 4.6% by weight.

[0078] [Preparation of fumigation agent] Under room temperature (20°C) conditions, each component was stirred and mixed in a kneader (S5-2G type, manufactured by Moriyama Co., Ltd.) according to one of the compositions 1 to 3. Then, 10 parts of water were added to the total composition (100 parts) and mixed to obtain a mixture. The obtained mixture was granulated using a pre-extrusion granulator (EXK-1, manufactured by Fuji Powder Co., Ltd.) with a die having a diameter of 3 mm to obtain granules. The obtained granules were cut into lengths of 2-5 mm using a flash mill (FL300, manufactured by Fuji Powder Co., Ltd.) and dried for 2 hours in a dryer (RT-120HL, manufactured by Alp Co., Ltd.) set to 70°C to obtain granular fumigant.

[0079] <Examples 1-28> The container body was constructed with the bottom diameters shown in Tables 1 to 3, filled with fumigant according to the composition, bulk density, and filling volume shown in each table, and had the number of smoke vents shown in each table formed in the lid. Subsequently, the materials were smoked using the smoking methods shown in each table, and the smoking speed and boil-over rate were evaluated. The results are shown in each table. Note that the base area y in each table was calculated from the base diameter. Also, the total opening area of ​​the smoke vents is calculated from the opening area of ​​each smoke vent (0.785 mm²). 2 This was determined by multiplying the number of smoke vents by the value of the smoke vents.

[0080] [Table 1]

[0081] [Table 2]

[0082] [Table 3]

[0083] As shown in Tables 1-3, in all examples, the evaluation results for both the speed of smoking and the amount of spillage were favorable. [Explanation of Symbols]

[0084] 10, 30, 50 fumigation containers 11, 31, 51 Container body 12, 32, 52 Lids 13, 33, 53 Side of the main unit 14, 34, 54 Bottom of the main unit 17, 37, 57 smoke vents 20, 40, 60 heating device 21, 41, 61 Heating device body 21a, 41a, 61a recesses 22, 42, 62 Heating elements 23, 43, 63 posts 24, 44, 64 batteries 25, 45, 65 conductors 35 recess 55 Thin-walled section R Fumigant

Claims

1. The system comprises a fumigant container filled with a fumigant, and a heating device separate from the fumigant container. Multiple smoke vents are formed in the upper part of the aforementioned fumigation container. The heating device has a heating element that generates heat using electricity. A smoking system configured to heat the fumigant by supplying power to the heating element of the heating device to generate heat, and by bringing the heated heating element into direct or indirect contact with the fumigant filled in the fumigant container, thereby heating the fumigant and releasing smoke from the plurality of smoke holes.

2. The system comprises a fumigant container filled with a fumigant, and a heating device separate from the fumigant container. The aforementioned fumigation container has a flat bottom and multiple smoke vents formed at the top. The heating device has a heating element that generates heat using electricity, and the heating element has a flat mounting surface on its upper surface on which the fumigant container is placed. A smoking system configured to heat the smoking agent by supplying power to the heating element of the heating device to generate heat, and by placing the smoking agent container filled with the smoking agent on the aforementioned surface of the heated heating element, thereby heating the smoking agent and releasing smoke from the plurality of smoke holes.

3. The system comprises a fumigant container filled with a fumigant, and a heating device separate from the fumigant container. The aforementioned fumigation container has a recess formed in the bottom or side, and multiple smoke vents formed in the top. The heating device has a heating element that generates heat using electricity, and the heating element is shaped to fit into the recess formed in the fumigant container. A smoking system configured to heat the fumigant by supplying power to the heating element of the heating device to generate heat, and by fitting the heated heating element into the recess formed in the fumigant container filled with the fumigant, thereby heating the fumigant and releasing smoke from the plurality of smoke holes.

4. The system comprises a fumigant container filled with a fumigant, and a heating device separate from the fumigant container. Multiple smoke vents are formed in the upper part of the aforementioned fumigation container. The heating device has a heating element that generates heat using electricity, and the heating element is shaped to be inserted into the bottom or side of the fumigant container. A smoking system configured to heat the fumigant and release smoke from a plurality of smoke holes by supplying power to the heating element of the heating device to generate heat, and inserting the heated heating element into the bottom or side of the fumigant container filled with the fumigant by inserting it into the fumigant container.

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