JPH04219187A - waste treatment equipment - Google Patents

Abstract

PURPOSE:To uniformly dry waste and to enhance the thermal efficiency of an equipment by cooling both the external wall of a treatment chamber and a microwave heater and sending the warmed air (warm wind) into the treatment chamber in a waste treatment equipment wherein waste is heated by microwave and treated. CONSTITUTION:The air sent from a fan 10 cools both the external wall of a waste treatment chamber 3 and a microwave heater 6 and becomes warm wind. This warm wind is introduced into the inside of the treatment chamber from an inflow route 14 and promotes drying of waste 4 and uniforms drying thereof.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste processing apparatus for processing waste such as food waste, paper waste, and plastic waste.

0002

2. Description of the Related Art Conventionally, waste treatment equipment includes a mechanical treatment device called a disposer and an incineration type treatment device that uses gas fuel, liquid fuel, or the like. Mechanical processing equipment uses rotating blades to crush food waste and disposes of it into sewers, while incineration processing equipment uses a burner to combust fuel and use the heat to incinerate the food waste. In addition to these, there are waste treatment apparatuses that are equipped with a magnetron and heat garbage using microwaves to incinerate it.

0003

However, such conventional waste treatment apparatuses have the following problems. Mechanical processing equipment can crush food waste into fine particles, but the wastewater after pulverization contains a large amount of solids, which can clog sewer lines, which has become a major social problem. . Incineration type processing equipment has the disadvantage that the entire equipment is complex and large. Furthermore, although waste treatment equipment equipped with a magnetron does not have the disadvantages of the aforementioned sewerage problems or being complicated and large, it also has poor exhaust gas characteristics during treatment (not sufficient for household use) and Problems remain, such as the contained moisture condensing after being discharged and contaminating indoor and outdoor areas. Furthermore, even waste processing equipment equipped with magnetrons, which is effective for processing raw garbage, has poor thermal efficiency as the equipment because the heat during processing is discarded to the outside together with the exhaust gas. In addition, when taking out the waste after treatment, hands tend to get dirty, which is unhygienic, and dirt tends to adhere to the inner wall of the container in which the waste is stored.

The present invention solves the above problems and provides a waste treatment device that significantly reduces the weight of waste, allows sanitary handling of waste after treatment, and has excellent thermal efficiency and drainage performance. The purpose is to

[0005]

[Means for Solving the Problems] In order to achieve the above object, the waste processing apparatus of the present invention includes a sealable waste input port, a waste processing chamber, a waste storage container, and a waste storage container. A microwave heater to heat the waste inside, a drain provided in the waste treatment chamber, a heat recovery chamber provided outside the waste treatment chamber, and a blower to supply air to the heat recovery chamber. ,
It is equipped with a hot air inflow path that allows the air (warm air) heated in the heat recovery chamber to flow into the waste treatment chamber, and the microwave heater is heated so that the heat released by the microwave heater is also recovered in the heat recovery chamber. Stored in the collection room.

[0006]

[Operation] With the above structure, waste is inputted from the waste input port and then stored in the waste storage container. After the waste is added, the waste inlet is sealed and the microwave heater is activated. The microwave begins to heat the waste in the waste storage container. In particular, the microwaves are selectively absorbed by the moisture in the waste, and as water vapor is generated, the waste dries. Water vapor condenses on the inner walls of the waste treatment chamber and is discharged to the outside through the drain port. In addition, the air supplied from the blower to the heat recovery room is heated by recovering exhaust heat from the waste treatment room and heat radiation from the microwave heater, becomes hot air, passes through the hot air inflow path, and is disposed of. Flows into the material processing room. In addition to microwaves, warm air also
Heat and dry the waste. Since the microwave heats and dries the waste from inside the waste and the hot air heats and dries the waste from the outside, the waste can be dried uniformly. Since the waste heat from the waste treatment chamber and the heat radiated from the microwave heater can be recovered, the system can be highly efficient.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1) FIG. 1 is a sectional view showing a first embodiment of the present invention. In FIG. 1, the waste treatment apparatus includes a waste inlet 1, and the waste inlet 1 is provided with a waste inlet cover 2 so as to be openable and closable. The waste inlet lid 2 has excellent heat resistance, and has a high airtightness to prevent microwaves and odors from leaking. A waste storage container 5 for storing waste 4 is provided inside the waste treatment chamber 3. A microwave heater 6 is provided to heat the waste 4 in the waste storage container 5, and a drain port 7 is provided at the bottom of the waste treatment chamber 3. Drain port 7
Place the waste treatment chamber 3 so that it is at the bottom of the waste treatment chamber 3.
The lower surface of the is hemispherical. In FIG. 1, the lower surface is hemispherical, but the shape does not need to be limited as long as the drain port 7 can be located at the lowest part of the waste treatment chamber 3.

A heat recovery chamber 8 is provided outside the waste treatment chamber 3, and a blower 10 is provided for supplying air 9 to the heat recovery chamber 8.
is housed in an air supply chamber 11, and the air supply chamber 11 and the heat recovery chamber 8 are connected by an air supply pipe 12. Microwave heater 6
The microwave heater 6 is housed in the heat recovery chamber 8 so that the heat radiation is also recovered in the heat recovery chamber 8. A hot air inflow path 14 is provided through which hot air 13 made of air heated in the heat recovery chamber 8 flows into the waste treatment chamber 3. A heat insulating material 15 is provided on a part of the inner wall of the heat recovery chamber 8.

Next, the operation will be explained. Figure 1
At this time, waste 4 input from the waste input port 1 is stored in a waste storage container 5 in the waste treatment chamber 3. After confirming that the waste input port 1 is sealed, the microwave heater 6 is activated. The microwave begins to heat the waste 4 in the waste storage container 5. In particular, microwaves are selectively absorbed with respect to moisture in waste 4, and water vapor 16
As the waste 4 is generated, the waste 4 dries. The generated water vapor 16 moves to the upper part, but since the waste inlet 1 is sealed, the water vapor 16 moves to the lower part of the waste treatment chamber 3. At this time, the water vapor 16 comes into contact with the inner wall of the waste treatment chamber 3, condenses, becomes condensed water 17, and is discharged to the outside from the drain port 7 provided at the lower part of the waste treatment chamber 3. Most of the water vapor 16 is discharged from the drain port 7 after condensation, but a portion is discharged from the drain port 7 in the state of water vapor 16.

[0011] In this way, water vapor 16 is generated in the waste treatment chamber 3.
Since microwave heating can be performed without accumulating condensed water or condensed water 17, drying of waste 4 can be accelerated. In addition, the air 9 supplied from the blower 10 to the heat recovery chamber 8 is heated by recovering exhaust heat from the waste treatment chamber 3 and radiating heat from the microwave heater 6, and becomes hot air 13. It passes through the inflow path 14 and flows into the waste treatment chamber 3 . Then, the waste 4 is heated and dried not only by microwaves but also by hot air 13. Since the microwave heats and dries the waste 4 from inside the waste 4 and the hot air 13 heats and dries the waste 4 from the outside, the waste 4 can be uniformly dried.

[0012] Heating and drying using only microwaves causes tar-like substances to adhere to the surface of the waste 4, but by using microwaves and hot air 13 in combination, generation of tar-like substances can be suppressed. be able to. Since the exhaust heat from the waste treatment chamber 3 and the heat radiation from the microwave heater 6 can be recovered, the device can be highly efficient. Generally, the efficiency of the microwave heater 6 is 50% to 60%, so the heat radiation and recovery from the microwave heater 6 is effective in improving the efficiency of the device. In addition, a heat insulating material 15 is provided on a part of the inner wall of the heat recovery chamber 8.
By providing this, it is possible to suppress heat radiation to the outside and improve the thermal efficiency of the device. (Embodiment 2) Next, a sectional view of a second embodiment is shown in FIG. Components common to those in FIG. 1 are given the same numbers. Embodiment 2 differs from Embodiment 1 in that there is no heat recovery chamber surrounding the waste treatment chamber 3, but a small heat recovery chamber is provided outside the microwave heater 6 to recover the heat radiated from the microwave heater 6. 18
has been established. A blower 10 for supplying air 9 to the small heat recovery chamber 18 and the blower 10 are housed in an air supply chamber 11, and the air supply chamber 11 and the small heat recovery chamber 18 are connected by an air supply pipe 12. In FIG. 2, the process is the same as in the first embodiment until the waste material 4 is heated and dried using microwaves. In the second embodiment, during heating and drying, the air 9 sent from the blower 10 to the small heat recovery chamber 18 is heated by recovering the heat radiated from the microwave heater 6, and becomes hot air 13. The hot air flows into the waste treatment chamber 3 through the hot air inflow path 14 .

The small heat recovery chamber 18 is the heat recovery chamber 8 of the first embodiment.
Compared to this, the amount of heat that can be recovered is small, but it is possible to perform efficient heat recovery in a compact space. Also,
Since only the heat radiated from the microwave heater 6 is recovered, temperature control can be easily performed and responsiveness can be improved.

In the above embodiment, the waste storage container 5 is a waste storage bag made of a microwave transparent material,
After the processing is completed, the bag can be taken out without touching the waste 4, which is also hygienic.

[0015]

[Effects of the Invention] As explained above, according to the waste treatment apparatus of the present invention, the following effects can be obtained. First, the water vapor generated from the waste is condensed on the inner wall of the waste treatment chamber using microwave heating and drying treatment, and is then discharged to the outside from the drain provided at the bottom of the waste treatment chamber. Since microwave heating can be performed without accumulating water vapor or condensed water indoors, it is possible to accelerate the drying of waste. Furthermore, the heated air heated in the heat recovery chamber flows into the waste treatment chamber, and the waste is heated and dried from the inside of the waste using microwaves and from the outside using hot air, thereby uniformly distributing the waste. can be dried. Since the waste heat from the waste treatment chamber and the heat radiated from the microwave heater can be recovered, the system can be highly efficient. In addition, by using a waste storage bag made of microwave-transparent material as the waste storage container, the waste storage bag containing the waste can be taken out after processing is completed, so the waste can be touched. It's not necessary and it's more sanitary.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a first embodiment of the waste treatment apparatus of the present invention.

FIG. 2 is a sectional view of a second embodiment of the waste treatment apparatus of the present invention.

[Explanation of symbols]

1 Waste input port 3 Waste treatment room 5 Waste storage container 6　Microwave heater 7 Drain port 8 Heat recovery room 10　Blower 14 Hot air inflow route 18 Small heat recovery room

Claims (4)

[Claims] 1. A sealable waste inlet, a waste treatment chamber, a waste storage container, a microwave heater for heating waste in the waste storage container, and a waste treatment chamber in the waste treatment chamber. a heat recovery chamber provided surrounding the outside of the waste treatment chamber; a blower for supplying air to the heat recovery chamber; A waste treatment apparatus comprising: a hot air inflow path for flowing into a treatment chamber, and the microwave heater is installed in a heat recovery chamber. 2. A sealable waste inlet, a waste treatment chamber, a waste storage container, a microwave heater for heating the waste in the waste storage container, and a waste treatment chamber in the waste treatment chamber. A drainage port provided, a small heat recovery chamber provided surrounding the outside of the microwave heater, a blower that supplies air to the small heat recovery chamber, and the air heated in the small heat recovery chamber A waste treatment device comprising: a hot air inflow path for flowing into a waste treatment chamber. 3. The waste treatment apparatus according to claim 1, wherein the waste storage container is a waste storage bag made of a microwave transparent material. 4. The waste treatment apparatus according to claim 1, wherein at least a part of the inner wall of the heat recovery chamber or the inner wall of the small heat recovery chamber has a heat insulating structure.