JPS62218710A - Garbage disposer - Google Patents

Abstract

PURPOSE:To obtain a garbage disposer which has no problem in sewerage, has excellence in both miniaturization and stability, and reduces remarkably the foul odor of exhaust gas by a method wherein the weight of the garbage is measured during the garbage disposal time and the water content in catalyst is removed to activate the catalyst in a disposal process. CONSTITUTION:Garbage 15 in a garbage can 4 absorbs microwaves emitted from a magnetron 1 and is quickly heated. The garbage 15 absorbing the microwaves releases water content first to be dehydrated. Steam generated from the garbage is sent to catalyst 16 from an outflow hole 2 for exhaust gas together with the supplied air coming from an air supply hole 3. The garbage weight in the can 4 is constantly measured by a weight detecting part 6 and when the dehydration process has come to an end, the operation of the magnetron 1 is stopped and a blower and a heater are operated as before to activate the catalyst. After activation, the magnetron 1 is re-operated. The dehydrated garbage absorbs the microwaves further and is quickly heated to be decomposed into combustible gas and its part is carbonized. The foul odor component in the exhaust gas is purified by the catalyst 16 installed in an exhaust gas flowing passage.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an incineration device for garbage, waste paper, etc. generated at home or in business.

BACKGROUND OF THE INVENTION Conventional garbage processing devices include a mechanical processing device called a disposer and an incinerator that uses gas fuel or liquid fuel.

The former uses a blade similar to that used in a mixer to mechanically chop the food waste into pieces and disposes of it by disposing of it into the sewer system.The latter uses a burner to burn fuel and uses the heat of the combustion to chop the food waste. It will be incinerated.

In addition, as a new proposal, there is a device in which food waste is placed in a food waste disposal chamber equipped with a magnetron, and the food waste is heated and incinerated using microwaves.

Problems to be Solved by the Invention However, the conventional garbage disposal apparatus having the above-mentioned configuration has the following problems.

Disposers mechanically process food waste into small pieces, but the wastewater still contains a large amount of solids, which causes clogging of sewers, which has become a major social problem.

The method of incinerating food waste using fuel has the disadvantage that the inside of the incinerator becomes hot, so it requires insulation from the outside, and the equipment becomes large in order to ensure combustion stability. In addition, since thermal power is used, there is a high risk of fire outbreak.

In addition, the conventional garbage disposal equipment equipped with a magnetron,
Although it has the advantage of solving the problems of other conventional methods, such as sewerage problems, miniaturization, and safety, its structure is still insufficient, and in particular, it has the disadvantage of extremely bad exhaust gas odor. have.

The present invention has been made to solve the above-mentioned conventional problems, and has no sewage problem and is miniaturized.

The object of the present invention is to provide a garbage disposal device that is both excellent in safety and has significantly reduced exhaust gas odor.

Means for Solving the Problems - In order to solve the above problems, the present invention provides at least the following:
A garbage disposal warehouse having a magnetron, an air supply port, and an exhaust gas outlet; a detachable garbage container installed in the garbage disposal warehouse; and an exhaust gas flow connected to the exhaust gas outlet of the garbage disposal warehouse. It is equipped with a catalyst body installed in the road, and an air supply device that supplies air into the food waste processing warehouse, and detects the weight of food waste being processed in the food waste container and activates the catalyst. This is a structure of a garbage processing apparatus which is equipped with a means for converting garbage.

Operation In the garbage disposal apparatus having the above configuration, the garbage treatment process using microwaves generated by a magnetron proceeds as follows.

First, the food waste is dehydrated by heating and evaporating the water in the food waste using microwaves.

Furthermore, the dehydrated food waste that has been irradiated with microwaves is rapidly heated and some of it becomes carbonized. The carbonized portion is a good conductor, so in the strong electric field created by the magnetron, the carbonized portion and the surrounding metal wall repeatedly discharge. This discharge serves as an igniter for the combustible gas that has been accumulated during the decomposition of garbage, and the combustible gas is ignited. Due to this heat of combustion and repeated electrical discharges, the garbage gradually turns into ashes. During the above garbage treatment, exhaust gas containing a large amount of odor components such as unburned hydrocarbon compounds and their incomplete combustion products generated from garbage is
Released from inside the refrigerator. Therefore, this exhaust gas is passed through the catalyst to purify the above-mentioned odor components, but since food waste contains a large amount of moisture, this moisture is contained in the exhaust gas, causing Sufficient catalytic activity is not obtained in the above-mentioned garbage treatment process. The present invention is configured to detect the weight of food waste and accurately detect the processing process of the food waste, so that the catalytic performance can be fully demonstrated. That is, as described above, the garbage disposal process of the present invention can be broadly divided into three steps.

That is, there is a first process in which food waste is dehydrated, a second process in which the dehydrated food waste is carbonized and decomposed, and a third process in which combustible gas generated from the food waste is combusted and ashed by electric discharge. Odor components are mainly generated in the second process, but the catalyst is poisoned by a large amount of moisture generated from garbage in the first process, and at the beginning of the second process, the catalyst is Since the poisoned water in the medium cannot be completely removed, the activity is extremely low, and as a result, a large amount of odor components are released into the outside air at the beginning of the second process.

The present invention focuses on the fact that the weight change curve of the weight of food waste in the food waste container during food waste processing has an inflection point between the first process and the second process, and the weight detection method of the present invention Depending on the department,
The end point of the first process is detected by constantly measuring the weight of food waste, and a new process is added to remove water from the catalyst before moving to the second process, and the catalyst activity is checked before moving to the second process. This prevents the release of odor components into the outside air. in particular,
As mentioned above, after the weight detection unit detects the end point of the first process, the magnetron is stopped, air is supplied to remove poisonous water in the catalyst, and the magnetron is operated again to complete the second process and the subsequent steps. When the moisture is removed from the catalyst, the heating element simultaneously generates heat to accelerate the moisture removal. By the method described above, the odor of exhaust gas during garbage disposal can be significantly reduced.

EXAMPLE An example of the present invention will be described below based on the drawings. In the figure, reference numeral 14 indicates the amount of food waste to be processed, and it has a front door 8, and a food waste container 4 is provided inside thereof so that it can be taken in and out. This garbage container 4 has a through hole 7 in the side wall, a microwave absorbing ceramic 6 in the inner bottom, and stores garbage 15. A magnetron 1 is installed above the food waste processing amount 14, and microwaves are radiated into the food waste processing amount 14 through the microwave transmission partition wall 1o. A microwave diffusion device 9 is installed at the
There are 6.

The garbage processing amount 14 has an exhaust gas outlet 2 at its upper part and an air supply port 3 at its lower part. An exhaust passage passing through a catalyst 12 with a heater 11 is formed from the exhaust gas outlet 2, and an air supply passage from a blower 13 is connected to the air supply opening 3. and the garbage container 4
The weight is detected by a weight detection section 6, and the weight detection section 6 detects the weight of the garbage and controls the magnetron 1.

The garbage container 4 is preferably made of a microwave-transparent material, and is preferably an inorganic sintered body, a combustion body, or a glass body with a microwave penetration depth of 1 rrL or more. This is because if a garbage container is made of a material with poor microwave transparency (microwave absorber), the container itself will become hot due to the microwaves, and as the device is used repeatedly, the container will be rapidly heated and cooled. This is because the container is easily damaged.

Further, when using the above-described microwave-transparent container, it is desirable to use microwave-absorbing ceramics 6 in the container. This is because if the magnetron 1 continues to operate even after the garbage is incinerated, there is a risk that the magnetron 1 itself will be damaged if there is no substance in the processing chamber that absorbs microwaves. Further, from the viewpoint of food waste combustion stability, it is desirable that the food waste container 4 is provided with a through hole 7.

Next, the operation of the embodiment of the present invention will be explained.

First, a food waste container containing food waste 15 is put into the food waste processing volume 14 through the front door 8 and installed as shown in the figure. Next, when the activation switch (not shown) is turned on, the magnetron 1. Blower13. and a heater 11 for heating the catalyst. The magnetron cooling fan 16 starts operating. The food waste 16 contained in the food waste container 4 absorbs microwaves generated from the magnetron and is rapidly heated. Note that it is desirable to provide a microwave permeable partition wall 1o between the magnetron 1 and the garbage processing amount 14 in order to protect the magnetron. The food waste 16 that has absorbed the microwaves is dehydrated by first releasing moisture. The water vapor generated from the garbage 16 is sent to the catalyst 16 through the exhaust gas outlet 2 together with the supply air coming in through the air supply port 3. The weight of the food waste in the food waste container 4 is constantly measured by the weight detection unit 6, and as described above, when the food waste 16 reaches the end of the dehydration process,
The magnetron 1 is stopped, and the blower and heater are kept running to activate the catalyst that has been poisoned by a large amount of water vapor. In this activation process, it is preferable to increase the amount of current supplied to the heater to activate the activation process, since this can be done in a shorter time. The activation process is performed for a certain period of time using a timer (not shown). When the activation process is completed, the magnetron 1 is activated again. The dehydrated food waste further absorbs microwaves, is rapidly heated, decomposes into flammable gas, and a portion of it becomes carbonized. The combustible gas is the main odor component of the exhaust gas, and is purified by the catalyst 16 installed in the exhaust gas flow path. Now, as mentioned above, due to the strong electric field created by the magnetron 1, an electric discharge occurs intermittently in the refrigerator against the carbonized portion of the garbage bundle, which had accumulated inside and outside the garbage container. The combustible gas from the decomposition of garbage is ignited by the discharge. The food waste 15 continues to burn due to the heat of combustion of the combustible gas and the microwave irradiation, and this combustion continues until it becomes ashes. The end of the garbage processing is performed by a timer (not shown) that is set in advance according to the amount of garbage processed. Microwaves irradiated after garbage disposal are absorbed by microwave absorbing ceramics.

Note that although the blower is provided upstream of the air supply port, the present invention is not limited thereto; for example, an intake fan may be installed downstream of the catalyst to suck air and clean the food waste disposal chamber 14. It may be introduced inside.

In addition, in the embodiment shown in the figure, the food waste disposal warehouse 14 and the catalyst 12 are installed separately, but the combustion heat of the food waste 16 combusted in the food waste disposal warehouse 14 can be used to more effectively heat and activate the catalyst 12. For use, it may be installed immediately after the exhaust gas outlet 2 of the garbage disposal warehouse 14.

In this case, by increasing the opening area of the exhaust gas outlet 2 to be equal to the cross-sectional area of the catalyst, the pressure loss in the exhaust gas path can also be reduced. Furthermore, although the exhaust gas outlet 2 is also provided on the side surface of the garbage disposal warehouse 14 in this embodiment, the present invention is not limited to this. It may also be provided on the bottom surface.

Effects of the Invention As is clear from the description of the embodiments described above, the present invention measures the weight of food waste during food waste treatment, removes the moisture in the catalyst that has moisture during the treatment process, and activates the catalyst. Because of this structure, it is possible to obtain a food waste treatment device that can perform food waste treatment with sufficient catalytic performance, has no sewage problems, is compact, has excellent safety, and has significantly reduced exhaust gas odor.

BRIEF DESCRIPTION OF THE DRAWINGS The figure is a sectional view of a garbage processing apparatus according to an embodiment of the present invention. 1...Magnetron, e...Weight detection unit, 13...Blower, 4...Garbage container, 12...Catalyst.

Claims (2)

[Claims] (1) A garbage disposal warehouse having at least a magnetron, an air supply port, and an exhaust gas outlet, a removable garbage container installed in the garbage disposal warehouse, and a connection to the exhaust gas outlet of the garbage disposal warehouse. installed in the exhaust gas flow path,
It is equipped with a catalyst body equipped with a heating element and an air supply device that supplies air into the food waste processing warehouse, and detects the weight of food waste being processed in the food waste container, and detects the weight of food waste being processed in the food waste container. A garbage disposal device comprising activation means. (2) The garbage disposal apparatus according to claim 1, wherein the garbage disposal container is made of a microwave-transmitting material and has a microwave-absorbing ceramic inside the container.