JP3617357B2 - Garbage processing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a garbage disposal machine capable of deodorizing by decomposing a generated odor component with a catalyst.
[0002]
[Prior art]
Conventionally used garbage processing machines use a catalyst device in order to prevent the gas generated from the garbage from being processed by heating, drying or the like from becoming a bad odor or an unpleasant odor. This catalyst device is arranged in the exhaust path of the garbage processing machine. As this catalyst device, for example, a honeycomb-shaped oxidation catalyst using a ceramic carrier is heated from the outside to activate the catalyst. Then, a ceramic formed and sintered in a honeycomb shape is used as a support, and a slurry in which inorganic fine particles such as activated alumina and noble metals are mixed is sintered on the surface, and the support is heated from outside to activate the catalyst. There is a configuration in which a ceramic honeycomb formed body adsorbing and supporting a component mainly composed of manganese oxide is heated from the outside to activate the catalyst.
[0003]
[Problems to be solved by the invention]
The conventional garbage processing machine having the above-described configuration has a problem that it takes a certain amount of time to bring the catalyst to the activation temperature, and it takes time to start the operation.
[0004]
[Means for Solving the Problems]
The present invention is garbageA processing container for storing the gas, an exhaust path connected to the processing container for discharging the gas generated from the processing container, a catalyst device for processing gas generated from garbage disposed in the exhaust path, and the catalyst apparatus from the exhaust path Insulating sheet to insulate and heating means arranged outside the exhaust path, and the catalyst device is configured by laminating a plate-like electrical insulating plate and a catalyst carrier processed into a corrugated plate, and the catalyst carrier By energizing the body, the catalyst layer carried thereon is raised to the activation temperature, and the heating means is configured to energize in advance and dry the catalyst device before energizing the catalyst carrier. Before the means for energizing the catalyst carrier, the means for drying the condensed water adhering to the exhaust path and the inner surface of the catalyst unit storage area after the water vapor has cooled, and the insulation resistance of the insulating sheet by the condensed water when the catalyst carrier is energized. Cause a drop It is safe use, the catalyst responsible By energizing the body itself, A garbage disposal machine that can start operation quickly and efficiently.Can be realizedIs.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The invention described in claim 1 is garbage.A processing container for storing the gas, an exhaust path connected to the processing container for discharging the gas generated from the processing container, a catalyst device for processing the gas generated from garbage disposed in the exhaust path, and the catalyst apparatus from the exhaust path Insulating sheet to insulate and heating means disposed outside the exhaust path, and the catalyst device is configured by laminating a flat electric insulating plate and a catalyst carrier processed into a corrugated plate, the catalyst carrying By energizing the body, the catalyst layer carried thereon is raised to the activation temperature, and the heating means is configured to energize in advance and dry the catalyst device before energizing the catalyst carrier. Prior to the energization of the catalyst carrier, the means dries the condensed water adhering to the exhaust path and the inner surface of the catalyst device storage area, and the insulation resistance of the insulating sheet due to the condensed water when the catalyst carrier is energized. Cause a drop It is safe use, the energization of the catalyst carrier itself, A garbage disposal machine that can start operation quickly and efficiently.Can be realizedIs.
[0006]
In the invention described in claim 2, the catalyst carrier comprises an expanded metal base material, an undercoat layer formed on the surface of the base material, and a catalyst layer formed on the surface of the undercoat layer. It is a highly efficient garbage disposal machine with high adhesion to the base material, little deterioration in performance even after long-term use, and quick start of operation.
[0007]
According to a third aspect of the present invention, a plurality of catalyst devices are provided in series in the aeration direction so as to be a garbage processing machine capable of performing high-efficiency processing.
[0008]
According to the invention described in claim 4, the heating means can efficiently heat the entire catalyst device by heating the catalyst device located upstream of the gas flow generated from the processing vessel. This is a garbage disposal machine that can secure insulation resistance from the housing and can be used safely.
[0009]
In the invention described in claim 5, the catalyst device is arranged so that the gas generated in the exhaust path is directed from the lower part to the upper part, and the gas whose temperature is increased by energization of the catalyst device is directed to the upper part. The gas does not condense in the housing to become water, and is a garbage disposal machine with high processing efficiency.
[0010]
【Example】
Example 1
Hereinafter, a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a cross-sectional view showing a configuration of a garbage disposal machine of this embodiment. An exhaust path 2 for discharging the gas generated from the processing container 1 is connected to the processing container 1 for storing the garbage. The exhaust passage 2 is provided with a catalyst device housing 3 in the middle, and the catalyst device 5 is disposed therein. The catalyst device 5 treats the gas generated from the garbage to be odorless by oxidizing and decomposing it. In this embodiment, the catalyst device 5 is in contact with the catalyst device housing portion 3 via an insulating sheet 4 that also serves as a packing material that prevents exhaust leakage. In this embodiment, the insulating sheet 4 is made of ceramic paper. The catalyst device storage 3 and the catalyst device 5 are cylindrical in this embodiment. Further, the odorless gas due to oxidative decomposition is discharged out of the system from the discharge part 2a. A heating means 6 such as a heater is disposed on the outer periphery of the catalyst device housing 3. The heating means 6 uses a 100 W ribbon heater in this embodiment. In this embodiment, as shown in FIG. 1, the gas generated from the garbage in the processing container 1 passes through the exhaust path 2 and moves the catalyst device 5 housed in the catalyst device housing portion 3 upward from below. It is configured to head toward.
[0011]
FIG. 2 is a perspective view showing the configuration of the catalyst device 1. In this embodiment, the catalyst device 1 has a configuration in which a corrugated catalyst carrier 21 and a flat electrical insulating plate 22 are laminated to form a roll. The catalyst carrier 21 uses a Ni—Cr heat resistant steel or Fe—Cr—Al heat resistant steel expanded metal as a base material and a catalyst layer formed on the surface thereof. Further, 24 is an electrode terminal provided at the winding end portion of the catalyst carrier 21, and 23 is an electrode terminal provided at the winding start portion of the catalyst carrier 21. In the present embodiment, a sheet-like ceramic paper having a thickness of 0.5 mm is used as the flat electrical insulating plate 22.
[0012]
In the above description, the structure in which the catalyst carrier 1 is laminated in a roll shape has been described. However, the present invention is not particularly limited to this structure, and there is no problem even if a plurality of strips are stacked. Is.
[0013]
FIG. 3 is a cross-sectional view showing the configuration of the catalyst carrier 21. An undercoat layer 32 and a catalyst layer 33 are provided on the surface of the substrate 31. As described above, an expanded metal of Ni—Cr heat resistant steel or Fe—Cr—Al heat resistant steel is used as the base material 31. Ni—Cr heat resistant steel and Fe—Cr—Al heat resistant steel have high specific resistance and high durability, and are therefore suitable as a heating element for a catalyst carrier. For this reason, it is used as the base material 31 in this embodiment.
[0014]
The undercoat layer 32 is formed so as to be fired after the base material 31 is immersed in Fe-Cr-Al heat resistant steel (NTK NO.4L, manufactured by Nippon Metal Industry). In this embodiment, the undercoat layer 32 has a thickness after firing of 0.1 mm.
[0015]
The reason why Fe-Cr-Al heat-resistant steel (NTK NO. 4L made by Nippon Metal Industry) is selected as the undercoat layer 32 is that the base material 31 and the undercoat layer 32 are caused by expansion and contraction of the base material 31 during operation. This is because the thermal expansion coefficient is matched in order to prevent peeling. The slurry of the undercoat layer 32 is adjusted using a sintered oxide described below. That is, it is formed by stirring and mixing 720 parts by weight of aluminum hydroxide, 217 parts by weight of cerium nitrate hexahydrate, 38 parts by weight of barium carbonate, and 1520 parts by weight of ion-exchanged water. The slurry is dried at 100 ° C., further sintered at 1000 ° C. for 60 minutes, and then pulverized. 400 parts by weight of the sintered oxide thus obtained, 50 parts by weight of aluminum nitrate nonahydrate, 80 parts by weight of colloidal alumina, and 460 parts by weight of ion-exchanged water were mixed, and then pulverized with a ball mill. The undercoat slurry is adjusted to a particle size of 4.1 μm. After applying 5.0 g of this undercoat slurry to the base material 31, the undercoat slurry is dried at 130 ° C. for 20 minutes and baked at 600 ° C. for 20 minutes to form the undercoat layer 32.
[0016]
As described above, expanded metal is used as the base material 31. FIG. 4 is a plan view showing this expanding process. In the present embodiment, the center distance SW of the iris in the direction parallel to the indentation direction of the iris 31a is set to 2 mm, and the center distance LW of the iris in the direction perpendicular to the indentation direction of the iris 31a is set to 5 mm. This setting can be freely changed, and the resistance value of the base material 31 can be adjusted by changing this setting. In this embodiment, the base material 31 that has been subjected to the expanding process and further subjected to an annealing treatment in an air atmosphere at 950 ° C. for 30 minutes is used. By this annealing treatment, the base material 31 has a dense passive film on the surface, and can be made a more durable catalyst base material. The annealing temperature at this time is less than 900 ° C., and the formation amount of the oxide film is insufficient and the durability is low, and if it exceeds 1000 ° C., the crystal grains grow too brittle and the strength becomes insufficient. As described above, the temperature is set to 950 ° C. Moreover, the expanded metal which performed the said annealing process gives a corrugated sheet shape as a thing of width 70mm and length 500mm, and is made into a corrugated sheet shape. The corrugated plate has a height of 3 mm and a pitch of 2 mm.
[0017]
A catalyst layer 33 is formed on the undercoat layer 32 thus formed. The catalyst layer 33 is formed by mixing a 4.5 wt% dinitrodiamine palladium nitric acid aqueous solution and a 4.5 wt% dinitrodiamine platinum nitric acid aqueous solution in a ratio of 1: 1. 5.0 g of this material is applied on the undercoat layer 32, dried at 130 ° C. for 20 minutes, and then baked at 600 ° C. for 20 minutes. As a result of this firing, a catalyst layer of platinum and palladium noble metals can be formed on the undercoat layer 32. At this time, the undercoat layer 32 serves as a connection between the base material 31 and the catalyst layer, and keeps the catalyst firmly on the base material 31.
[0018]
The operation of this embodiment will be described below. When the user puts garbage into the processing container 1 and heats and dry it by an appropriate means, gas is generated from the garbage. The generated gas passes through the exhaust path 2 and passes through the catalyst device 5 of the catalyst device housing 3 from below to above. At this time, as soon as the electrode terminals 23 and 24 of the catalyst carrier 21 made of expanded metal are energized, the catalyst device 5 activates the catalyst and oxidizes and decomposes the gas. The gas that has become odorless due to oxidative decomposition is discharged out of the system from the discharge section 2a. Thus, the dried rice cake is solidified into a small volume and processed by the user.ButIt can be done easily.
[0019]
At this time, in this embodiment, the heating means 6 is disposed outside the exhaust path, that is, on the outer periphery of the catalyst device housing 3. In this embodiment, since the catalyst device 5 that operates at a high temperature is used, the exhaust path 2, the catalyst device storage portion 3, and the discharge portion 2a use a metal casing such as stainless steel. Further, the catalyst device 5 used in the present embodiment is configured to directly energize the catalyst carrier 21 made of expanded metal formed in a corrugated plate shape. Therefore, a safety structure is required to prevent accidents such as electric shock when the user comes into contact with the metal casing. The heating means 6 and the insulating sheet 4 of the present embodiment are means for realizing this safety structure.
[0020]
A large amount of moisture is generated from the processing container 1 by heating the garbage. In a state where the catalyst carrier 21 is energized, the catalyst layer 33 has risen to the activation temperature, and the ambient temperature has also risen. Therefore, in the operating state, the large amount of water exists as water vapor. In this state, the catalyst device 5 and the catalyst device housing 3 are insulated from each other by the insulating sheet 4, so that no electric shock is generated even if the user contacts the catalyst device housing 3. .
[0021]
However, in the state where the heating in the processing container 1 is completed, the internal temperature decreases with the passage of time, and the water vapor is condensed inside the exhaust path 2 and the catalyst device housing 3 to become a liquid. That is, it adheres to the wall surface as water droplets. In this state, moisture may come into contact with the catalyst device 5 through the inside or the surface of the insulating sheet 4. In this state, since moisture becomes a carrier and conduction occurs, the insulation between the catalyst device 5 and the catalyst device housing 3 is lowered. When the insulating sheet 4 is porous or fibrous, moisture passes through the inside of the insulating sheet 4, and even when the insulating sheet 4 has water repellency, the moisture is insulated. 4, there is a possibility that the insulation resistance between the catalyst device 5 and the catalyst device storage portion 3 is lowered. That is, for example, such a decrease in insulation occurs when the use is started in the state where the use is completed on the previous day and the use is started for a whole day and night.
[0022]
Therefore, in this embodiment, when the apparatus is used, the heating means 6 is energized in advance using a switch (not shown). The inside of the catalyst device housing 3 is dried by energization of the heating means 6, and the insulation resistance does not decrease, and the user can use the device safely.
[0023]
Further, in this embodiment, the catalyst device 5 is configured to be wound so as to stack the flat electric insulating plate 22 and the energized catalyst carrier 21. Therefore, by connecting a commercial AC power source (not shown) between the electrode terminals 23 of the catalyst device 5, the catalyst carrier 21 itself generates heat, so that the catalyst layer 33 can be activated quickly, and the operation starts. Is a fast and highly efficient exhaust gas treatment. At this time, since the electric insulating plate 22 insulates the layers of the catalyst carrier 21, the situation that the catalyst carrier 21 is short-circuited does not occur.
[0024]
In the present embodiment, the catalyst carrier 21 is processed into a corrugated plate and used. For this reason, the contact area between the passing gas and the catalyst carrier 21 is increased, and the exhaust gas can be processed with high efficiency.
[0025]
In this embodiment, the catalyst carrier 21 is composed of an expanded metal base 31, an undercoat layer 32 formed on the surface of the base 31, and a catalyst layer 33 formed on the surface of the undercoat layer 32. doing. For this reason, the catalyst layer 33 is firmly adhered to the base material 31 via the undercoat layer 32. For this reason, it is possible to realize a highly efficient garbage disposal machine with little deterioration in performance even after long-term use, and quick start of operation.
[0026]
Further, in this embodiment, the gas discharged from the processing container 1 is configured to flow from the lower side to the upper side through the catalyst device housing 3. For this reason, the gas containing water vapor whose temperature has been increased by energizing the heating means 6 is discharged out of the system from the discharge part 2a without lowering the temperature on the way. That is, for example, when the gas flow is a flow from the upper side to the lower side of the catalyst device housing 3, the water vapor evaporated by the heating means 6 comes into contact with the inner wall of the casing at a low temperature and re-condenses to become water. Therefore, the insulation recovery is slow and unstable.
[0027]
For this reason, according to the present Example, the said state can be avoided and a safe and efficient garbage processing machine can be implement | achieved.
[0028]
(Experimental example 1)
Next, the results of an experiment for verifying the effect of the apparatus of this example will be reported. This experiment confirms the basic deodorizing performance. The apparatus used for the experiment has the configuration shown in FIG. That is, a commercially available product (MS-N10, manufactured by Matsushita Electric Industrial Co., Ltd.) is used as the main body of the garbage processing machine, and a predetermined electric power is supplied to the catalyst device 5 to drive the catalyst device 5. The standard gas for the test is stored in the space velocity 4000 (h^-1). Thus, the removal degree of the odorous component contained in the standard gas is examined when it passes through the discharge part 2a. Deodorization performance is evaluated based on the degree of removal. At this time, a conventional configuration is used as a comparison target. That is, instead of the catalyst device 5, a ceramic honeycomb having the same volume and shape as the catalyst device 5 carrying the same component and the same amount of catalyst is used, and a sheathed heater is attached to the front stage of the honeycomb. The same electric power as the predetermined electric power is supplied to the heater, and the removal degree of the odorous component contained in the standard gas is similarly examined. In this experiment, in both the example and the conventional one, a heat insulating material is wound around the catalyst device housing portion 5 to minimize heat dissipation to the outside. As the standard gas, dimethyl sulfide ((CH3) 2S), which is an odor component generated from vegetables and the like in this experiment, is selected. This dimethyl sulfide is diluted with air having a dew point of 88 degrees, which is the treatment atmosphere of an actual garbage disposal machine, to a concentration of 500 ppm. The degree of removal is calculated by examining the dimethyl sulfide concentration using the FID of the gas chromatograph.
[0029]
The results of this test are shown in FIG. Characteristic a indicates that of this embodiment, and characteristic b indicates that of a conventional example. The vertical axis in FIG. 5 indicates the removal rate of dimethyl sulfide, and the horizontal axis indicates the supplied power. As is apparent from this test, the apparatus of the present example device clearly has better removal characteristics of dimethyl sulfide, which is an odor component, as compared with the conventional apparatus. That is, the removal rate of 99.5% is obtained with the supplied power of about 180 W in the present embodiment, but the conventional example requires about 220 W in order to obtain the same removal rate. That is, the present embodiment can reduce energy by 15% or more compared to the conventional one, and is very efficient.
[0030]
(Experimental example 2)
Subsequently, using the same apparatus as in Experimental Example 1, the rising characteristics of the catalyst temperature are examined. In this experiment, when 200 W of electric power is supplied to the example and the conventional example, the temperature at the center of the catalyst is examined. FIG. 6 is a characteristic diagram showing the results of this experiment. 6a shows the temperature rise characteristic of the present example, and b shows the temperature rise characteristic of the conventional example. In the present example, the central temperature of the catalyst reaches 600 ° C. within one minute immediately after the power is turned on, but the conventional example requires five minutes or more.
[0031]
This is because, as the catalyst device 5, the catalyst carrier 21 that can be energized is used, and by connecting a commercial AC power source between the electrode terminals 23 and 24 of the catalyst device 5, the catalyst carrier 21 itself generates heat. is there.
[0032]
(Experimental example 3)
Subsequently, using the same apparatus as in Experimental Example 1, using actual food, the results of evaluating the degree of odorous components generated from the food by a sensory test are reported. As standard garbage, a total of 700 g of cabbage 150 g, oranges 150 g, rice 150 g, chicken 150 g, soy sauce 20 g, sour sauce 20 g, salad oil 20 g, dressing 20 g and sweet potato 20 g is used as a single treatment amount. Further, 200 W is supplied to the catalyst device 5 and measurement is started after 1 minute has passed. As a result, in the conventional example, food odor and garbage odor are slightly felt in the exhaust immediately after the start, but nothing is felt in the example.
[0033]
The reason is that the catalyst device 5 is configured to be a current-carrying catalyst carrier 21, and the catalyst carrier 21 itself generates heat by connecting a commercial AC power source between the electrode terminals 23 of the catalyst device 5. . That is, the temperature of the catalyst layer is high and the catalyst temperature rises to 600 ° C. or more after one minute has passed after supplying 200 W of power. It will not fall below the temperature required for activity. For this reason, the odor is decomposed and exhausted from the start of the treatment process.
[0034]
(Experimental example 4)
Subsequently, an experiment for verifying the effects of the heating means 6 and the insulating sheet 4 of this example is performed. In this experiment, as the insulating sheet 4, a sheet material (SGX-777 manufactured by Ryoden Kasei Co., Ltd.) in which a glass cloth base material having a water absorption of 0.1% and a thickness of 0.5 mm is impregnated with an inorganic heat-resistant varnish is used. ing. Further, the ribbon heater as the heating means 6 is energized at 100 W for 10 minutes, and then the catalyst device 5 is energized at 200 W, and the treatment process is started after 1 minute. In this processing step, the standard garbage is put in and allowed to stand for 24 hours, and then a new standard garbage is put in and left to be repeated five times. In this experiment, the insulation characteristic at this time is measured by the conductivity which is the reciprocal of the insulation resistance.
[0035]
The result is shown in FIG. The vertical axis in FIG. 7 represents the electrical conductivity, and the horizontal axis in FIG. 7 represents the elapsed time since the energization of the heating means 5 was started. A broken line a shown in FIG. 7 indicates that the insulation resistance is 10 MΩ. That is, when the characteristic reaches a level below the broken line a, the insulation resistance is 10 MΩ or more, and there is no problem in the insulation performance. As can be seen from FIG. 7, since the gas generated from the processing container 1 contains water vapor, the initial insulation resistance is very low. This insulation resistance increases as the energization time of the heating means 6 elapses, that is, the conductivity decreases, and after 7 minutes, has recovered to a level of 10 MΩ or more in all five experiments.
[0036]
In this experiment, the heating means 5 is energized at 100 W for 10 minutes, but there is no need to be particularly concerned with 100 W for 10 minutes.
[0037]
(Example 2)
Subsequently, a second embodiment of the present invention will be described. FIG. 8 is a cross-sectional view showing the configuration of this embodiment. In the present embodiment, the catalyst device A81 and the catalyst device B82 are provided in the catalyst device housing 3 in series in the ventilation direction. Moreover, the heating means 6 is provided in the outer peripheral part of the catalyst apparatus accommodating part 3 so that the catalyst apparatus A located in the upstream of the flow of the gas generated from the processing container 1 may be heated. In this embodiment, the dimensions of the catalyst device A81 and the catalyst device B82 are 50 mm in diameter and 35 mm in height, and 5 mm is provided between the catalyst device A81 and the catalyst device B82.
[0038]
The operation of this embodiment will be described below. The heat generated by the catalyst device A81 is transmitted to the catalyst device B by the gas flow. Therefore, in the case of the configuration of the present embodiment, if the catalyst device A81 disposed on the upstream side of the exhaust gas is energized, the catalyst device B82 disposed on the downstream side of the exhaust gas may not be energized. It is a waste. Further, if the heating means 6 is arranged so as to heat the catalytic device A81 arranged on the upstream side of the exhaust gas, the insulation resistance can be recovered for the same reason as in the first embodiment.
[0039]
As described above, according to the present embodiment, a garbage processor with high thermal efficiency and high processing efficiency is realized as compared with a configuration using a single catalyst device.
[0040]
Further, according to the present embodiment, if the heating device 6 is configured to heat the catalyst device A81 located on the upstream side of the gas flow generated from the processing vessel 1, it is between the catalyst device and the catalyst device storage portion. Insulation can be secured efficiently, and a safe and highly efficient garbage disposal machine is realized.
[0041]
【The invention's effect】
According to the first aspect of the present invention, there is provided a processing container for storing garbage, an exhaust path connected to a processing container for discharging gas generated from the processing container, and a gas generated from the garbage provided in the exhaust path. A catalytic device, an insulating sheet that insulates the catalytic device from the exhaust path, and heating means disposed outside the exhaust path, the catalytic device being processed into a flat electric insulating plate and a corrugated plate shapeCatalystLaminated with carrierBy configuring the catalyst carrier to be energized, the catalyst layer supported on the catalyst carrier is raised to the activation temperature, and the heating means is energized in advance before the catalyst carrier is energized to dry the catalyst device. Due to the configuration, before the heating of the catalyst carrier, the heating means preliminarily dries the condensed water adhering to the exhaust path and the inner surface of the storage part of the catalyst device, and the condensation when the catalyst carrier is energized. It can be used safely without causing a decrease in insulation resistance of the insulation sheet due to water, and the catalyst carrier itself can be energized.Thus, it is possible to realize a garbage processing machine that can start operation quickly and perform highly efficient processing.
[0042]
According to a second aspect of the present invention, there is provided a catalyst carrier comprising: an expanded metal base material; an undercoat layer formed on the surface of the base material; and a catalyst layer formed on the surface of the undercoat layer. It realizes a high-efficiency garbage disposal machine with high adhesion between the substrate and the base material, little deterioration in performance even after long-term use, and quick start of operation.
[0043]
The invention described in claim 3 realizes a garbage processing machine capable of performing high-efficiency processing as a structure in which a plurality of catalyst devices are provided in series in the aeration direction.
[0044]
According to the invention described in claim 4, the heating means can efficiently secure the insulation resistance between the catalyst device and the casing as a structure for heating the catalyst device located on the upstream side of the gas flow generated from the processing vessel. Realizes a garbage disposal machine that can be used safely.
[0045]
The invention described in claim 5 is such that the catalyst device is arranged so that the gas generated in the exhaust path is directed from the lower part to the upper part, and the steam whose temperature has been raised by energization of the heating means is directed to the upper part. The gas does not condense in the body and become water, and insulation can be reliably ensured to realize a safe garbage disposal machine.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a configuration of a garbage disposal machine according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing the configuration of the catalyst device.
FIG. 3 is a sectional view showing the structure of the catalyst carrier.
FIG. 4 is a plan view showing the configuration of the expanding process
FIG. 5 is a characteristic diagram showing the removal characteristics of methyl sulfide.
FIG. 6 is a characteristic diagram showing a temperature rise characteristic of the catalyst carrier.
FIG. 7 is a characteristic diagram showing an insulation characteristic between the charging unit and the housing.
FIG. 8 is a sectional view showing a configuration of a garbage disposal machine according to a second embodiment of the present invention.
[Explanation of symbols]
1 Processing container
2 Exhaust route
3 Catalyst unit storage
4 Insulation sheet
5 Catalytic device
6 Heating means
21 Catalyst carrier
22 Electrical insulation plate
81 Catalyst A
82 Catalyst B

Claims (5)

A processing vessel for containing garbage, and an exhaust passage connected to said processing vessel for discharging the gas generated from the processing container, a catalytic converter for treating a gas generated from the food waste which is provided in the exhaust passage, wherein An insulating sheet that insulates the catalyst device from the exhaust path, and heating means disposed outside the exhaust path, the catalyst device comprising a flat electric insulating plate and a catalyst carrier processed into a corrugated plate shape. By laminating and energizing the catalyst carrier, the catalyst layer carried on the catalyst carrier is raised to the activation temperature, and the heating means is energized in advance before energization of the catalyst carrier. Garbage disposal machine that is configured to dry . The garbage processing machine according to claim 1, wherein the catalyst carrier comprises an expanded metal base material, an undercoat layer formed on the surface of the base material, and a catalyst layer formed on the surface of the undercoat layer. The garbage processing machine according to claim 1 or 2, wherein a plurality of catalyst devices are provided in series in the ventilation direction. The garbage processing machine according to claim 3, wherein the heating means heats the catalyst device located on the upstream side of the flow of gas generated from the processing container. The garbage processing machine according to any one of claims 1 to 4, wherein the catalyst device is arranged so that the gas generated in the exhaust path is directed from the lower part to the upper part.

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