JPH01196411A - Garbage disposal device - Google Patents

Abstract

PURPOSE:To provide a safe and hygienic garbage disposal device free of the possibility of explosion or odor leakage due to generation of a large quantity of unburnt combustible gases, by controlling an exhaust fan and an exhaust gas heater through a pressure sensor. CONSTITUTION:A partition plate for shielding an exhaust gas and air from each other is provided between a side surface of a disposal vessel 7 and an inner surface of a main body 1, on the upper side of a ventilation port 17 of the vessel 7. A pressure sensor 19 for detecting the internal pressure in the main body 1 and controlling an exhaust gas heater 12 and an exhaust fan 15 is provided on the upper side of the partition plate. The internal pressure is raised by steam during drying, raised by the exhaust gas during combustion, and lowered as the combustion is finished. The variations in the internal pressure are detected by the pressure sensor, and the rotational frequency of the exhaust fan 15 is so regulated that the internal pressure will be a constantly fixed negative pressure. The variation in the rotational frequency of the fan 15 is accompanied by a variation in the temperature of the heater 12, and the heater temperature also is controlled to be a fixed value.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a kitchen waste processing apparatus for reducing the amount of kitchen waste by incinerating it using microwaves.

Conventional technology In general, kitchen waste processing equipment includes those that burn kitchen waste with gas, those that compress and crush kitchen waste, and those that ferment. It was unsuitable for home use.

Therefore, the present inventors have considered a kitchen waste processing device that uses microwaves. This kitchen waste processing device will be explained below using diagram M2. In the figure, 101 is a main body made of a microwave resonator, and a processing container 107 disposed inside the main body 101.
An igniter 116 that generates heat using microwaves provided at the bottom of the
Both the food waste 108 introduced into the processing container 107 from the opening 109 are heated by microwaves introduced from the microwave generator 102 into the main body 1o1 from the microwave supply port 104 through the waveguide 103. , kitchen waste 1
The air necessary for combustion is blown into the main body 101 by the supply air blower 105, and the blown air is passed through the partition plate 118. is the processing container 107 and the main body 101
Since the exhaust gas and air are installed so as not to mix in the gap with the inner surface, they flow into the processing container 107 only through the vent provided on the surface of the processing container 107. In addition, the exhaust gas generated by combustion is discharged from the exhaust port 110 to the flue 1.
The exhaust gas enters the purification unit 114 through 11, is heated by the energized exhaust gas heating heater 112, is then purified by the catalyst 113, and is exhausted by the exhaust blower 115.

Problems to be Solved by the Invention However, in such a configuration, the exhaust air blower 15 and the supply air blower 105 rotate at the same rotation speed from the start to the end of the process, making it impossible to keep up with the rapid generation of exhaust gas during combustion. As a result, the internal pressure rose, reducing the efficiency of air supply and exhaust, leading to explosions, exhausting the air before it was completely purified, and smoke leaking through gaps. Another idea was to increase the air volume from the beginning, but increasing the air volume increases the wind speed, which cools the inside of the processing container 107 and lengthens the processing time.
12 must be raised to a temperature that can be purified with the air volume from beginning to end, resulting in an excessively high electricity bill.

The present invention is intended to solve these problems, and aims to provide a safe and sanitary kitchen waste disposal device that does not cause explosions or odor leaks due to the generation of large amounts of unburned combustible gas. .

The means for solving the problem is equipped with an air supply port for introducing air into the main body, and an exhaust port for discharging the air inside the main body, and a heater for heating exhaust gas and a catalyst are installed in the exhaust passage provided in communication with the exhaust port. In addition to providing
The main body is provided with a pressure sensor for detecting the pressure inside the main body and controlling the exhaust gas heating heater and the exhaust blower.

With this configuration, even if exhaust gas is suddenly generated during combustion, it is instantly detected by a pressure sensor that is set to maintain negative pressure inside the main body, and the output of the exhaust gas heating heater and exhaust blower is increased. When the internal pressure starts to drop as the amount of exhaust gas generated decreases, the output of the exhaust gas heating heater and exhaust blower will be lowered to reach the set value, and the exhaust gas will be purified and discharged according to the amount of exhaust gas generated without waste. This will prevent an explosion.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIG.

In the figure, a main body 1 is provided as a microwave resonator, and an igniter 16 is provided at the inner bottom of the main body 1.
A processing container 7 is arranged, which is made of a heat-resistant inorganic sintered body that is transparent to microwaves, and has a plurality of vent holes 17 on its side. A partition plate is provided between the side surface of the container above the vent 17 of the processing container 7 and the inner surface of the main body 1 to block the exhaust gas and air. A pressure sensor is provided to control the heater 12 and exhaust blower 15.

In the above configuration, the kitchen waste 8 is thrown into the kitchen waste processing container 7 in the main body 1 through the opening 9. When the microwave generator 2 is energized, microwaves are generated and introduced into the main body 1 from the supply port 4 through the waveguide 3. At this time, the microwave generator is heated by generating microwaves and is therefore cooled by the magnetron cooling fan 6. The microwave acts on the kitchen waste 8 and the igniter 16 at the same time, heating them internally and drying them. When the drying is completed, the temperature rises above the boiling point and reaches the ignition point, and the already red-hot igniter 16 starts ignition and combustion.

At this time, the air necessary for combustion is pulled into the main body from the air supply port 6 by the exhaust blower 16, and the partition plate 18 separates the exhaust gas and air between the processing container 7 and the inner surface of the main body 1. Since they are installed so that they do not mix, they flow only through the vent 17 provided on the surface of the processing container 7. Therefore, the supplied air is effectively supplied to the drying kitchen waste 8 without mixing with the exhaust gas. When combustion begins, exhaust gas is generated, which is basically drawn by the exhaust blower 15 and enters the purification device 14 from the exhaust port 1o through the flue 11, is heated by the preheated exhaust gas purification heater 12, and is heated by the catalyst 13. The air is purified by the exhaust air blower 16 and discharged by the exhaust blower 16. During drying, the internal pressure increases due to the steam, and during combustion, the internal pressure increases due to exhaust gas, and as the combustion ends, the internal pressure decreases.This is detected by a pressure sensor, and the exhaust blower 16 is used to keep the internal pressure at a constant negative pressure. The rotation speed of the engine increases and decreases. At the same time, when the rotational speed of the exhaust blower 16 changes, the temperature of the exhaust gas heating heater 12 changes, so the heater temperature is also controlled to a constant value.

Effects of the Invention As described above, according to the present invention, by controlling the exhaust blower and the exhaust gas heater using a pressure sensor, air supply and exhaust can be adjusted according to drying and combustion, so that it is possible to cope with sudden generation of exhaust gas. This prevents the product from becoming roasted and exploding, from increasing internal pressure, and from leaking smoke and odors from inside the main body through gaps. −

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a kitchen waste processing apparatus according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing a conventional kitchen waste processing apparatus. 1... Body, 2... Microwave generator, 4... Supply port, 6... Air supply port, 7
...Processing container, 9...Opening, 1o.
...Exhaust port, 11. River... Smoke guide, 12...
・Exhaust gas heating heater, 13...Catalyst, 16
...Igniter, 17...Vent, 18.
River: Partition plate, 19: Internal pressure sensor. Name of agent: Patent attorney Toshio Nakao and 1 other person1-
11 苓迸θ−・°轉叉0 7−°■■! @Kin9- Opening Figure 2

Claims (1)

[Claims] A main body that introduces microwaves from a micro generator,
The main body includes an air supply port for introducing air into the main body, and an exhaust port for discharging the air from the main body, and an exhaust passage that communicates with the exhaust port is provided with a heater for heating exhaust gas and a catalyst. This kitchen waste processing device is equipped with a pressure sensor inside the main body to detect the pressure inside the main body and control the exhaust gas heating heater and exhaust blower.