JPH0697084B2 - Garbage processing equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to an incinerator for kitchen garbage, waste paper, etc. generated at home or in business.

2. Description of the Related Art Conventional food waste disposers include a mechanical disposer called a disposer and an incinerator that uses gas fuel or liquid fuel.

The former is a method to mechanically chop raw garbage with a blade such as that used in a mixer, and then it is processed by flowing it into sewage.The latter burns the fuel in a burner and incinerates it at the same time by the heat of combustion. It will be done.

In addition, as a new proposal, there is also an apparatus configured to put food waste in a food waste disposer equipped with a magnetron, heat the food waste by microwaves, and incinerate it.

Problems to be Solved by the Invention However, the conventional food waste processing apparatuses having the above-described configurations have the following problems, respectively.

Although the disposer mechanically finely disposes of garbage, the wastewater still contains a large amount of solids, which causes clogging of the sewer system, which has become a major social problem.

The method of incinerating food waste with fuel has the drawback that the inside of the incinerator becomes hot and thus needs to be insulated from the outside, and that the size of the device is increased to ensure combustion stability, and that thermal power is used. Therefore, there is a high risk of fire.

In addition, the food waste treatment device equipped with the conventional magnetron,
Although it has features that solve problems of other conventional methods such as sewer problem, miniaturization, and stability, it is still inadequate in its configuration, and the odor of exhaust gas is particularly bad. have.

The present invention has been made to solve the above-mentioned conventional problems, and provides a food waste treatment device that has no sewage problem, is small in size, has excellent safety, and has significantly reduced exhaust gas odor. is there.

Means for Solving the Problems In order to achieve the above object, the present invention provides at least a garbage disposal having a magnetron, an air supply port, and an exhaust gas outlet, and a garbage container installed in the garbage disposal. And a catalyst body provided with a heating element provided in the exhaust gas flow path connected to the exhaust gas outlet of the food waste processing cabinet, and an air supply device for supplying air into the food waste processing cabinet, and This is a structure of a food waste treatment device provided with a means for activating the catalyst body by detecting the humidity of the waste gas for treating food waste.

Action In the above-described configuration, during the garbage treatment, exhaust gas containing a large amount of odorous components such as unburned hydrocarbon compounds and incomplete combustion products generated from the garbage is discharged from the inside of the warehouse. The exhaust gas is passed through the catalytic body to purify the odorous components.

Here, the treatment is from the first process of dehydration of food waste, the second process of carbonization and decomposition of dehydrated waste, and the third process of combustion of combustible gas generated from food waste by discharge and ashing. In the second process, the odorous component is mainly generated. The catalyst is poisoned by a large amount of water generated from food waste in the first step before that, and in the beginning of the second step,
Since the poisoned water of the catalyst body cannot be completely drained, the activity is extremely low,
As a result, a large amount of odorous components will be released to the outside air in the early stage of the second process.
Paying attention to the fact that the humidity in the exhaust gas greatly changes between the process and the second process, the humidity detection unit detects the end point of the first process, and the moisture in the catalyst before the second process. By newly performing the step of removing the odor, the catalytic activity is restored before shifting to the second step, and the release of odorous components to the outside air is prevented. Specifically, after the end of the first process is detected by the humidity detecting unit, the magnetron is stopped, air is supplied, moisture in the catalyst is removed, the magnetron is operated again, and the second and subsequent processes are performed. At the time of removing water from the catalyst, a heating element provided at the same time is heated to remove water and activate the catalyst. By the method described above, the exhaust gas odor during the processing of food waste can be significantly reduced.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. In the figure, 11 is a garbage disposal, which has a front door 8 and in which a garbage container 4 can be freely taken in and out. This food waste container 4 has a through hole 7 in its side wall and a microwave absorbing ceramic 6 on its inner bottom, and stores food waste 13.

A magnetron 1 is installed on the upper part of the garbage disposal 11, and microwaves are radiated into the garbage disposal 11 from the microwave emission port 12 through the microwave transmitting partition wall 10. Microwave diffusing device 9 in the garbage disposal 11
Is installed, and a magnetron cooling fan 14 is provided near the magnetron 1.

The garbage disposal 11 has an exhaust gas outlet 2 in the upper part and an air supply port 3 in the lower part. An exhaust passage is formed from the exhaust gas outlet 2 through the catalyst 16,
The air supply passage is connected to the air supply port 3 by a blower 5. Further, a catalyst heater 17 is attached to the catalyst 16, a humidity detecting unit 15 is provided at the exhaust gas outlet 2, and the humidity detecting unit 15 controls the magnetron 1.

The food waste container 4 is preferably made of a microwave permeable material, and is preferably an inorganic sintered body, a combustion body, or a glass body having a microwave penetration depth of 1 m or more. This is because when a garbage container is made of a substance with a poor microwave permeability (microwave absorber), the temperature of the container itself rises due to microwaves, and due to repeated use of the device, rapid heating and quenching of the container causes This is because the container is easily damaged. When the above microwave permeable container is used, it is desirable to use the microwave absorbing ceramics 6 in the container. This is because if the magnetron was still operating after the garbage was incinerated,
This is because there is a risk of damaging the magnetron 1 itself if there is no substance that absorbs microwaves in the processing chamber. In addition, from the viewpoint of food waste combustion stability, the food waste container 4 has a through hole 7
Is desirable.

Next, the operation of the embodiment of the present invention will be described. First,
The garbage container 4 containing the garbage 13 is put into the garbage disposal 11 through the front door 8 and installed as shown in the figure. Next, when the operation switch (not shown) is turned on, first, the magnetron 1, the blower 5, the heater 17 for heating the catalyst, and the fan 14 for cooling the magnetron start operating. The garbage 13 contained in the garbage container 4 absorbs the microwave generated from the magnetron 1 and is rapidly heated. It should be noted that it is desirable to provide a microwave transmitting partition wall 10 between the magnetron 1 and the inside of the garbage disposal 11 to protect the magnetron. The garbage 13 that has absorbed the microwaves first releases water and is dehydrated. The water vapor generated from the garbage 13 is sent to the catalyst 16 from the exhaust gas outlet 2 together with the supply air entering from the air supply port 3. Humidity in the exhaust gas is constantly detected by the humidity detection unit 15, and when the end point of the dehydration process of the above-mentioned garbage is reached, the magnetron 1 is stopped and the blower 5 and the heater 17 are operated as they are to generate a large amount of steam. The catalyst 16 poisoned by is activated. In this activation process, it is more desirable to increase the energization amount of the heater 17 to activate the heater 17 because the activation time is shorter. The activation process is performed for a predetermined time using a timer (not shown). Further, the humidity detector 15 may be provided on the exhaust gas outlet side of the catalyst 16 to determine the end point of the activation process. When the activation process is completed, the magnetron 1 is reactivated again. The above-mentioned dehydrated food waste further absorbs microwaves, is rapidly heated, and is decomposed into a combustible gas, and a part thereof is carbonized. The combustible gas is a main odor component of exhaust gas, and this is purified by the catalyst 18 installed in the exhaust gas passage.

Now, as described above, due to the strong electric field generated by the magnetron, the carbonized portion of the food waste is intermittently discharged in the refrigerator, and has accumulated inside and outside the food waste container 4 by that time. Combustible gas decomposing food waste is ignited by the discharge. Due to the heat of combustion of the combustible gas and microwave irradiation, the garbage continues to burn, and this combustion is continued until it is ashed. The end of the raw garbage processing is performed by a timer (not shown) set in advance according to the amount of raw garbage to be processed. The microwave radiated after the garbage treatment,
It is absorbed by the microwave absorbing ceramic.

In addition, in the present embodiment, the blower 5 is provided on the inflow side of the air supply port 3, but the present invention is not limited to this, and, for example, an intake fan is installed on the downstream side of the catalyst 16, May be sucked and introduced into the garbage disposal 11.

In the embodiment shown in FIG. 1, the food waste treating cabinet 11 and the catalyst 16 are installed separately, but the combustion heat of the garbage 13 burning in the garbage treating cabinet 11 is more effectively heated and activated by the catalyst 16. It may be installed immediately after the exhaust gas outlet 2 of the garbage disposal 11 for use. In this case, the open area of the exhaust gas outlet 2 should be increased and the catalyst 16
By making the cross-sectional area equal to, the pressure loss in the exhaust gas path can also be reduced. Further, the exhaust gas outlet 2 is also provided on the side surface of the food waste processing cabinet 11 in the present embodiment, but the present invention is
The present invention is not limited to this, and the exhaust gas outlet may be provided on the upper surface or the lower surface of the food waste processing cabinet 11. The same applies to the humidity detecting unit 15, and it may be provided in the garbage disposal 11 near the exhaust gas outlet 2.

EFFECTS OF THE INVENTION As is clear from the description of the above embodiments, the present invention detects the humidity of exhaust gas during garbage processing, removes the water in the catalyst having water in the processing process, and activates the catalyst. Since it is configured as described above, it is possible to obtain a food waste treatment device that can sufficiently exhibit catalytic performance, does not have a sewage problem, is small in size and excellent in stability, and has a significantly reduced exhaust gas odor.

[Brief description of drawings]

FIG. 1 is a sectional view of a food waste processing device according to an embodiment of the present invention. 1 ... Magnetron, 2 ... Exhaust gas outlet, 3 ... Air supply port, 4 ... Garbage container, 5 ... Blower, 8 ... Garbage disposal box, 15 ... Humidity detector, 16 ... Catalyst , 17 …… Heater.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location F23G 7/06 102 R 8409-3K (72) Inventor Jiro Suzuki, 1006 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Appliance Industry Co., Ltd. (72) Inventor Yasuhiro Takeuchi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. Co., Ltd. (72) Inventor Kuniyoshi Iwata 6-2-1, Imafuku Nishi, Joto-ku, Osaka City, Osaka Prefecture Matsushita Seiko Co., Ltd. (56) References JP-A-58-133817 (JP, A) JP-A-52- 26034 (JP, A)

Claims (2)

[Claims] 1. A food waste treating cabinet having at least a magnetron, an air supply port and an exhaust gas outlet, a garbage container installed in the garbage treating cabinet, and an exhaust gas outlet of the garbage treating cabinet. Of the catalyst body provided with a heating element provided in the exhaust gas flow path, and an air supply device for supplying air into the food waste treating cabinet, and detecting the humidity of the food waste processing exhaust gas. A food waste processing device comprising an activating means. 2. The food waste processing apparatus according to claim 1, wherein the food waste processing container is formed of a microwave transparent material and has a microwave absorbing ceramic in the container.