JPH0481684B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used for incinerating combustible wastes such as food waste, waste paper, and human waste generated at home or in business.

BACKGROUND ART There are incinerators that use gas fuel or liquid fuel. This burns fuel in a burner and uses the heat to incinerate the waste. In addition, as a new proposal, there is an incinerator equipped with electric power such as a heater or magnetron as a heating source.

Problems to be Solved by the Invention In this way, the power heating device can be made smaller, but the heat of combustion of waste is generally low, and the odor of the exhaust is lower than when using auxiliary fuels such as gas or oil. The disadvantage of becoming stronger arises. When incinerated using auxiliary fuel with strong thermal power, the entire combustion furnace becomes high temperature and the emission of unburned components is extremely small.

Electricity, on the other hand, does not produce enough heat, making it difficult to achieve complete combustion. In particular, the temperature of the door for dumping waste is low, and it is difficult to make it airtight, making it easy for odors to leak out.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides an air chamber having a door in a part of the combustion air path, and includes a dish-shaped waste container that is stored through the door. A top lid of the dish-shaped container formed on the top of the air chamber, an exhaust port provided in the top lid, and an air intake part that communicates the interior of the dish-shaped container with the air chamber and surrounds the exhaust port. The incinerator has a gas combustion chamber provided downstream of the exhaust port, and means for heating the waste in the dish-shaped container.

Effects The gas generated inside the dish-shaped container is mostly unburned components and is very heavy and has a strong odor.

The generated gas may polymerize and have a large molecular weight, but since it is in the form of a mist, it has a
~12 heavy.

In this way, it is possible to convey light combustion air to the gas combustion chamber without leaking heavy gas to the outside. In other words, the dish-shaped container is pressurized in the air chamber to prevent gas from escaping, air is introduced from the periphery so that the air surrounds the gas inside the dish-shaped container, and the gas exits from the exhaust port at the top of the center. . With this method, heavy gas either accumulates at the bottom or rises through the center of the dish-shaped container to reach the exhaust port, so the gap between the top of the dish-shaped container and the top cover that is inevitably created when the dish-shaped container is taken in and out is removed. Gas does not easily leak.

In addition, with such a double structure, the entire dish-shaped container does not easily become dirty due to high temperature, and does not leave behind any odor after use.

Embodiment The figure is a sectional view showing an embodiment of the present invention.
In the figure, 1 is an air chamber. A waste door 2 is provided at the front of the air chamber 1. The waste is placed in a dish-shaped container 3 provided in the air chamber 1.
The inside of this dish-shaped container 3 is protected with a heat insulating material. Further, a radio wave absorber 4 such as silicon carbide is provided. The opening 5 at the top of the air chamber 1 communicates with the oscillating part of the magnetron 6 through a waveguide 7.

Further, an air hole 9 is provided in a top lid 8 provided at the top of the air chamber 1. Combustion air is supplied to the air hole 9 by a blower 10 and a damper 11. An exhaust port 12 is located approximately in the center of the top lid 8.
is provided. An exhaust port 12 is located downstream of the air chamber 1.
Gas passage hole 13 and ignition heater 14 communicating with
and a gas combustion chamber 16 having combustion holes 15. Combustion air is sent to the combustion hole 15 from the blower 10 . A combustion temperature detection section 17, a catalyst 18, an exhaust hole 19, and an exhaust gas dilution section 20 are placed downstream of the gas combustion chamber 16. Also gas combustion chamber 1
A heater 21 is provided upstream of the combustion hole 15 in the side wall of 6.

The operation of the present invention configured as described above will be explained below. The dish-shaped container 3 can be taken out from the air chamber 1 forward through the door 2. The waste is placed in a dish-shaped container 3 and placed in the air chamber 1 again.

Next, drying is started by oscillating the magnetron 6, operating the blower 10, and energizing the heater 21. The 2450 MHz macro wave is transmitted from the waveguide 7 through the insulating top cover 8, which is mainly made of radio wave transparent alumina fiber, and enters the radio wave resonant space formed by the upper part of the air chamber 1 and the dish-shaped container 3. Create an electric field.
Since radio waves reflect off metal walls, most of them are absorbed by the water in the waste. This causes the waste to dry quickly. At the same time, as the waste continues to dry, the radio wave absorber 4 also begins to absorb radio waves and becomes hotter.The high heat of the radio wave absorber 4 decomposes the waste and generates gas.

The ignition heater 14 provided in the gas combustion chamber 16 ignites the gas when the gas concentration in the gas combustion chamber 16 gradually increases to become a combustible gas.

During this time, the heat of the heater 21 is carried by air, and the temperature of the catalyst 18 is raised to its activation temperature, thereby preventing the generation of odor. Furthermore, if the combustion temperature detection section 17 detects the combustion amount and controls the microwave, an increase in the combustion amount exceeding the combustion capacity of the gas combustion chamber can be suppressed.

In the present invention, components that are easily vaporized are separated and gasified and combusted using this method, but as the waste is carbonized, the generation of gas becomes weaker.

This situation is judged by the weight of the waste, a change in combustion temperature, or by visual observation, and the damper 11 is operated to blow a large amount of air into the charred material to initiate ashing combustion. Since the waste has already lost decomposition gas,
Carbide becomes red hot without excessive combustion.

Further, the microwaves of the magnetron 6 generate electric discharge in carbon to promote the combustion of this carbon.

The reason why it is difficult to emit odor when operated in this way is as follows.

The gas generated inside the dish-shaped container 3 is mostly unburned components, has a smell, and is extremely heavy.

The generated gas may polymerize and have a large molecular weight, but since it is in the form of a mist, it has a
~12 times heavier.

In this way, it is possible to convey light combustion air to the gas combustion chamber 16 without leaking heavy gas to the outside. That is, the air chamber 1 pressurizes the dish-shaped container 3 to prevent gas from flowing out, air is introduced from the periphery so that the air surrounds the gas inside the dish-shaped container, and the gas exits from the exhaust port 12 at the upper center. That's what I do. In this method, heavy gas either accumulates at the bottom or has no choice but to rise through the center of the dish-shaped container 3 and reach the exhaust port 12, so that gas is difficult to escape from the gap between the top of the dish-shaped container 3 and the top lid 8. This gap is inevitably created when the dish-shaped container 3 is put in and taken out, but if even a part of the gas leaks from this gap into the air chamber 1, odor components will condense on the inner wall of the air chamber 1 and cause stains. When this builds up, it leaks outside through door 2 and is extremely smelly.

Such air holes 9 may also be provided on the upper side surface of the dish-shaped container 3, or may be formed by utilizing the gap between the dish-shaped container 3 and the upper lid 8.

In addition, with such a double structure, the entire dish-shaped container 3 does not easily become dirty due to high temperature, and does not leave behind any odor after use.

Further, although the embodiment has been explained using a magnetron, the effect is the same when an electric heater is fixed to the air chamber 1 and placed at the bottom or a part of the side of the dish-shaped container 3 to incinerate waste. .

Effects of the Invention As described above, in the present invention, waste storage is convenient, and the waste is constantly combusted by electricity, so the apparatus is compact. In addition, odors are less likely to leak through the storage gaps, and the equipment is less likely to get dirty.

[Brief explanation of the drawing]

The figure is a sectional view showing an incinerator according to an embodiment of the present invention. 1...Air chamber, 3...Dish-shaped container, 8...Top lid, 9...Air hole, 12...Exhaust port, 16...Gas combustion chamber.

Claims (1)

[Scope of Claims] 1. An air chamber having a door is provided in a part of the combustion air path, and a dish-shaped container for waste is stored through the door, and the dish-shaped container is formed in the upper part of the air chamber. an upper lid, an exhaust port provided on the top lid, an air intake portion communicating between the inside of the dish-shaped container and the air chamber and surrounding the exhaust port, and a gas combustion portion provided downstream of the exhaust port. An incinerator comprising a chamber and means for heating the waste in said dish-shaped container. 2. The incinerator according to claim 1, wherein the dish-shaped container is interlocked with the door.