JPS62288410A - Garbage processor - Google Patents

Abstract

PURPOSE:To restrict unburnt hydrocarbon from being generated at once by a method wherein a timer for controlling an energization of a micro-wave generating device is continuously energized when garbage is heated to be dehydrated, an intermittent energization is performed when flame is made and a micro-wave is generated discontinuously so as to ignite raw dust. CONSTITUTION:Raw garbage 8 is cast into a heating container 8 through an inlet port 9. When a micro-wave generating device 2 is energized through a timer 15, a micro-wave is generated and then guided into a main body 1 through a wave guide 3 from a supplying port 4. The micro-wave may directly act upon the raw garbage 8 to heat the raw garbage 8 and remove moisture from it. Thereafter, the micro-wave generating device 2 discontinuously energized through the timer 15, the micro-wave is discontinuously generated. Upon completion of removing water or moisture, heat or flame is generated with air supplied from a supplying port 6 with an air supplying blower 5 and ignited. Thus generated discharging gas enters a discharging gas purifying unit 13, purified by a catalyst 12, and then is discharged by a blower 14. The ignition or combustion is influences by a discontinuous irradiation with the micro-wave and as the irradiation with the micro-wave is terminated, the flame extinguishes.

Description

DETAILED DESCRIPTION OF THE INVENTION 3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a kitchen waste processing apparatus that reduces the amount of food waste by incinerating it using microwaves.

Conventional technology In general, this type of kitchen waste processing equipment includes those that burn the kitchen waste with gas, those that crush and compress the kitchen waste, and those that ferment the waste, but all of them produce bad odors and noise.

Due to problems such as the degree of weight loss, it was unsuitable for general household use. Therefore, the inventor of the present invention has been considering a kitchen waste processing apparatus as shown in FIG. 2 that utilizes microwaves. That is, a heat-generating container 7 that generates heat by microwaves is disposed within the main body 1, which is a microwave resonator, and food waste 8 is thrown into the heat-generating container 7 through an input port 9. Then, microwaves are introduced into the main body 1 from the microwave generator 2 through the waveguide 3 and through the microwave supply port 4, and the food waste 8 and heat generating container 7 are heated by the microwaves, and the food waste 8 is heated by itself. The amount was reduced by incineration using the heat generated by the internal heat generation and the heat from the heat generating container 7. The air necessary for combustion was introduced into the air supply blower 6 through the air supply port 6, and the exhaust gas generated by the combustion was exhausted through the exhaust port 10 by the exhaust blower 11.

Problems to be Solved by the Invention However, in such a conventional configuration, when the garbage 8 is heated and dehydration is completed, it ignites and burns, but if this process is monitored in terms of the generation of hydrocarbons, the situation as shown in Figure 3 can be seen. become,
When ignition occurs after dehydration, hydrocarbons are generated and the pattern gradually decreases.This unburned hydrocarbons are the cause of strong odor and thick smoke, and when purifying exhaust gas. However, there was a problem in that the equipment was large-scale.

The present invention solves these problems by providing a kitchen waste processing device that is environmentally friendly and suppresses the sudden generation of unburned hydrocarbons by intermittently generating microwaves to burn food waste. The purpose is to provide the following.

Means for Solving the Problem In order to solve this problem, the kitchen waste processing apparatus of the present invention has a main body made of a microwave resonator, a supply port for introducing microwaves into the main body, and a microwave for generating microwaves. a wave generator, a heat generating container placed in the main body that generates heat by microwaves, an input port provided in the main body for introducing kitchen waste into the heat generating container, and an energization control for the microwave generator. The device is equipped with a timer device, and the timer device is configured to continuously energize when heating and dehydrating kitchen waste, and to energize intermittently when igniting.

Function: With this configuration, the microwave generator is continuously energized at the start of kitchen waste processing, and the kitchen waste is heated and dehydrated by the generated microwaves. After that, turn off the power intermittently before it ignites.
Because the microwave is irradiated intermittently, the fire ignites when the microwave is irradiated and extinguishes when the microwave irradiation stops, which can prevent combustion. The peak value of exhaust gas concentration can be lowered.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIG. Note that parts that are the same as those in the conventional configuration are given the same numbers, and detailed explanation thereof will be omitted. As shown in the figure, a main body 1 which is a microwave resonator is provided in an outer shell 17, and inside this main body 1 there is a 10
A heat generating container 7 having heat resistance of 00°C or higher is placed. An input port 9 for garbage 8 is provided on one side of the main body 1, and a supply port 4 is provided on the other side. This supply port 4 is connected to the microwave generator 2 via a waveguide 3. An air supply port 6 communicating with a supply air blower 6 is provided below the supply port 4, and the discharge side of the supply air blower 6 branches to the microwave generator 2 side to supply cooling air. An exhaust port 1o is provided on the top surface of the main body 1, and an exhaust gas purification unit 13 consisting of an exhaust gas heater 11 and an oxidation catalyst 12 is connected to the exhaust port 10, and an exhaust blower 14 is further connected to the exhaust port 10.

Further, a timer 16 is connected to the microwave generator 2 to perform intermittent operation. Each opening of the main body 1, except for the supply port 4, is provided with means for preventing leakage of radio waves.

In the above configuration, the garbage 8 is charged into the heat generating container 8 through the input port 9 of the main body 1. Then, through the timer 16,
When the microwave generator 2 is energized, microwaves are generated and introduced into the main body 1 through the supply port 4 through the waveguide 3. The microwaves act directly on the garbage 8 and instantaneously heat the garbage to the inside, which has a high moisture content, low thermal conductivity, and has many spaces between the garbage particles, making it difficult to heat from the outside. The heat-generating container 7 is heated to heat and dehydrate the garbage 8. Thereafter, the microwave generator 2 is intermittently energized by the timer 16 to generate microwaves intermittently, and after the dehydration is completed, the air supplied from the air supply blower 5 through the air supply port 6 ignites and burns. The exhaust gas generated in this way enters the exhaust gas purification unit 13, and the exhaust gas heating heater 1
1 to the reaction temperature of the oxidation catalyst 12, and the catalyst 1
2 and exhausted by a blower 14.

In addition, combustion is affected by intermittent microwave irradiation,
The fire goes out when the microwave irradiation stops.

If we look at this state in terms of changes in the concentration of hydrocarbons, which are the components of odor, they hardly occur during the dehydration process, and the concentration is high when a fire ignites, and low when the fire is extinguished. Comparing this with the case of continuous energization, as shown in FIG. 3, during continuous energization, the concentration peaks at the first ignition and then gradually decreases. On the other hand, when energizing intermittently,
The concentration is high when the fire ignites, and the concentration is low when the fire is extinguished, changing in a sawtooth shape, but the peak value remains lower than when the current is continuously applied. From this, if there is no change in the purification rate, the concentration after purification can be lower than when continuous current is applied.

Further, since the amount of catalyst corresponding to the peak concentration value is required, it is possible to reduce the amount of catalyst.

As described above, according to this embodiment, the concentration after passing through the catalyst can be kept low, and the amount of catalyst can also be reduced.

Effects of the Invention As described above, according to the present invention, by intermittent energization of the microwave generator, it is possible to suppress the generation of high concentration odor due to the combustion of food waste all at once, and to reduce the amount of odor that is exhausted outside the device. This has the effect of reducing the amount of Furthermore, when purifying exhaust gas, the purification device can be downsized.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of a kitchen waste processing apparatus according to an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of a conventional kitchen waste processing apparatus, and Fig. 3 is a graph showing the concentration of generated hydrocarbons during continuous energization and intermittent energization. It is a change characteristic diagram. 1... Body, 2... Microwave generator, 4... Supply port, 6... Air supply port, 7
... Heat generating container, 9 ... Input port, 1o.
...Exhaust port, 16...Timer. Name of agent: Patent attorney Toshio Nakao and one other person (-
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Claims (1)

[Claims] A main body that is a microwave resonator, a supply port that introduces microwaves into the main body, a microwave generator that generates microwaves, a heat generating container that is placed in the main body and generates heat by the microwaves, an input port for introducing kitchen waste into the heat generating container, an air supply port for introducing air into the main body, an exhaust port for discharging gas in the main body, and a time limit for controlling energization of the microwave generator. Equipped with equipment,
The timer is a kitchen waste processing device that continuously energizes when heating and dehydrating kitchen waste, and intermittently energizes when ignition occurs.