JPH04334580A - Wastes disposal equipment - Google Patents

Abstract

PURPOSE:To provide a wastes disposal equipment by which wastes are uniformly dried without being scorched and evaporated water is discharged excellently. CONSTITUTION:A wastes storage container 3 is installed in a wastes disposal chamber 2 having a microwave generating apparatus 10, a ventilation pipe to lead air 11 supplied from a ventilating means 12 to the wastes storage container 3 after the air cools the outer walls of the wastes storage container 3 is installed in the wastes disposal chamber 2, a gas discharging pipe 17 to discharge the air out of the wastes storage container 3 to the outside of the wastes disposal chamber 2 is installed, wastes 9 are dried by the microwave heating means and at the same time dried by the air which is heated by air- cooling the wastes storage container 3, and steam is condensed to water in the wastes storage container 3, so that the wastes 9 are dried uniformly and excellent water discharging function is provided.

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

BACKGROUND OF THE INVENTION In recent years, against the backdrop of global environmental problems, technology for treating waste discharged from households and industrial sectors has been attracting attention. Conventionally, waste treatment devices include mechanical waste treatment devices called disposers and incineration type waste treatment devices that use gas fuel, liquid fuel, and the like.

[0003] Mechanical waste treatment equipment uses a rotating blade to crush food waste and disposes of the crushed waste into the sewer system, while incineration type waste treatment equipment uses a burner to burn fuel. This method uses the heat to incinerate waste. Also,
In addition to these, there are waste treatment apparatuses that are equipped with a microwave generator and heat and incinerate waste using microwaves.

0004

[Problems to be Solved by the Invention] Such conventional waste treatment equipment has the following problems.

[0005] Mechanical waste treatment equipment can finely crush food waste, but the wastewater after crushing contains a large amount of solid matter, which can clog sewer pipes and cause large problems. It has become a social problem.

[0006] Incineration type waste treatment equipment uses gas fuel, liquid fuel, etc., and therefore has the disadvantage that the entire equipment is complicated and large.

[0007] Furthermore, waste treatment equipment that is equipped with a microwave generator to heat and incinerate food waste does not have the above-mentioned sewage problems or disadvantages such as being complicated and large.
Because it uses an incineration method like incineration-type waste treatment equipment, the characteristics of the waste gas during treatment are insufficient for household use, and the moisture contained in the exhaust gas condenses after being discharged.
Problems such as indoor and outdoor contamination remained. Furthermore, although waste treatment devices equipped with micro-generators are effective in treating food waste, it is difficult to uniformly heat the waste during the drying process, and the waste is often heated locally.

[0008] The present invention solves the above problems, and aims to provide a waste treatment device that can uniformly dry waste without causing scorching and has excellent drainage performance of evaporated water. The purpose is

[0009]

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a waste treatment chamber, a waste input lid that covers an opening of the waste treatment chamber, and a waste disposal lid disposed inside the waste treatment chamber. a waste storage container for storing waste, a microwave heating means for heating the waste, a blowing means for supplying air into the waste storage container, and a waste storage container for blowing the air through an outer wall of the waste storage container. It is configured to include an air blowing path that guides the air into the waste storage container after cooling, and a waste path that guides the air from inside the waste storage container to the outside of the waste processing room.

0010

[Operation] According to the present invention, the waste contained in the waste container is dielectrically heated and dried by the microwave heating means. At the same time, the air supplied from the blowing means cools the outer wall of the waste container, causing some of the water vapor generated from the waste to condense on the inner wall of the waste container. Then, the air heated by cooling the waste container flows into the waste container and air-dries the waste.

[0011] Thereby, the waste can be uniformly dried by heating it from the inside using the microwave heating means and from the outside using the blowing means. Furthermore, condensed water can be discharged together with the exhaust from the waste container.

0012

【Example】

(Example 1) The first example of the present invention will be described below with reference to FIG.
This will be explained with reference to.

In the figure, reference numeral 1 denotes a waste input lid that covers the opening of the waste treatment chamber 2, which, together with the waste treatment chamber 2, has excellent heat resistance and is highly airtight to prevent microwaves and odors from leaking. has been done. Inside the waste treatment chamber 2, a waste container 3 made of a microwave-transmissive material is detachably disposed on a support base 4. And waste storage container 3
An O-ring 5 is installed between the support base 4 and the
is provided. The upper opening of the waste container 3 is covered with a waste container lid 7 having an air inflow hole 6 . This air inflow hole 6 may be provided in the waste container 3,
In that case, the waste container lid 7 may also be used as the waste input lid 1. A bag 8 for storing waste is installed inside the waste container 3. This bag 8 is made of a material that is breathable and water permeable. Moreover, a microwave heating means 10 is attached to the side of the waste treatment chamber 2 so as to heat the waste 9 in the bag 8.

Reference numeral 12 denotes a blowing means for supplying air 11 into the waste container 2, which is disposed inside the air blowing chamber 13.
and the waste treatment chamber 2 are connected by an air pipe 14. In the waste treatment chamber 2, an air passage is formed that guides air after cooling the outer wall of the waste container 3 into the waste container 3. A waste channel 17 is connected to the bottom of the waste container 3 for discharging condensed water 15, water vapor, and decomposed gas 16 to the outside of the waste treatment chamber 2. On the downstream side of the exhaust passage 17, there is a drainage passage 18 through which condensed water 15 passes and a gas 16.
An exhaust gas passage 19 for passing through is branched and connected,
On the downstream side of the exhaust gas path 19, an exhaust gas purification device 20 consisting of, for example, a catalyst and a heater is disposed. Furthermore, a trap 22 is provided upstream of the exhaust gas purification device 20 to prevent condensed water 15 from entering the exhaust gas purification device 20 .

In the above structure, the thrown waste 9 is stored in the bag 8 provided inside the waste storage container 3. When the waste storage container lid 7 and the waste input port lid 1 are closed and the microwave heating means 10 is activated, the microwave begins to heat the waste 9 in the bag 8. The microwaves are selectively absorbed by the water contained in the waste 9 to generate water vapor (gas 16) and the waste 9 is dried. and,
Air blowing means 12 is operated simultaneously with microwave heating means 10 to supply air 11 to waste treatment chamber 2 . The supplied air 11 cools the outer wall of the waste container 3 through a ventilation path formed in the waste treatment chamber 2, and also generates microwaves from the waste heat of the waste container 3 and the inner wall of the waste treatment chamber 2. After the waste heat is recovered and the temperature is raised, the air flows into the waste container 3 through the air inflow hole 6 provided in the waste container lid 7 and comes into contact with the waste 9 in the bag 8. Water vapor (
A part of the gas 16) condenses on the inner wall of the waste container 3 to become condensed water 15, which is discharged from the exhaust path 17 to the outside of the waste treatment chamber 2. At this time, since the waste 9 is contained in the bag 8, condensed water 15 and gas 16 are released from the exhaust path 17.
solids that would clog sewer pipes are not discharged. The condensed water 15 discharged from the exhaust passage 17 passes through a drainage passage 18 to the sewer, and the gas 16 passes through an exhaust gas passage 19 and an exhaust gas purification device 20 to be purified and then released into the atmosphere.

As described above, according to the first embodiment of the present invention, since the air passage is formed in the waste treatment chamber 2, there is no water vapor (gas 16) or condensed water in the waste treatment chamber 2. 15 is not present and therefore the microwaves can heat the waste 9 without attenuation and accelerate its drying.

Furthermore, the air 11 supplied from the ventilation means 12 to the waste treatment chamber 2 is used to recover microwave exhaust heat from the inner wall of the waste treatment chamber 2 and to recover exhaust heat from the outer wall of the waste storage container 3. The temperature of the collected air is raised by the collection, and the hot air is brought into contact with the waste 9 in the waste storage container 3 through the air inflow hole 6, thereby heating the waste 9 and promoting its drying.

[0018] Thereby, the waste 9 can be heated and dried from the inside using the microwave and the waste 9 from the outside using the hot air, and the waste 9 can be dried uniformly.

[0019] Furthermore, heating and drying using only microwaves,
Although tar-like substances tend to adhere to the surface of the waste 9, generation of tar-like substances can be suppressed by using microwaves and hot air in combination.

Furthermore, by air cooling the outer wall of the waste container 3, there are many effects such as promoting condensation of water vapor generated from the waste 9 and improving drainage performance.

In this embodiment, the bag 8 for storing the waste 9 is provided, but the waste 9 may be directly stored in the waste container 3 without using the bag 8. It is desirable to install a filter or the like so that the waste 9 is not discharged from the waste channel 17. By providing the bag 8, the waste 9 can be taken out together with the bag 8 after the treatment is completed, so the waste 9 does not come into contact with hands, making it sanitary. Furthermore, since the waste container 3 is removable, it can be removed and cleaned if dirt is attached to it.

By providing the drainage channel 18 and the exhaust gas 19 on the downstream side of the exhaust gas channel 17 and disposing the exhaust gas purification device 20 on the downstream side of the exhaust gas channel 19, it is possible to purify the gas 16 and suppress odor. There is an effect that it can be done.

Furthermore, by heating the waste material 9 by controlling the output of the microwave heating means 10 intermittently, it is possible to suppress the occurrence of charring due to local heating and to promote uniform heating of the waste material 9 by the microwaves. At the same time, it is possible to improve the water vapor condensation performance during off-time, and the condensed water is reduced by 15%.
can be increased. Due to this increase in condensed water, the amount of water vapor entering the exhaust gas purification device 20 can be reduced, and a decrease in the purification performance of the exhaust gas purification device 20 due to moisture can be suppressed. Furthermore, by optimizing the ratio of on-time to off-time in intermittent control, it is possible to simultaneously improve condensing performance and reduce power consumption.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIG.

[0025] The same parts as those shown in the first embodiment are given the same reference numerals and their explanations will be omitted.

In the figure, a blowing means 23 is provided in the exhaust gas passage 19 on the downstream side of the exhaust passage 17. Air blowing means 2
3 is housed in the intake chamber 24. The waste treatment chamber 2 is provided with an intake hole 25, and the intake hole 25 is provided with an intake valve 26 that opens when air is taken in.

In the above configuration, heating and drying the waste 9 by the microwave heating means 10 is the same as in the first embodiment.

Simultaneously with the heating by the microwave heating means 10, the blowing means 23 is operated to supply air 11 to the waste treatment chamber 2 through the intake hole 25. The supplied air 11 is the first
As in the embodiment, the outer wall of the waste container 3 is air-cooled, and the waste heat of the waste container 3 and the waste heat of microwaves are recovered from the inner wall of the waste treatment chamber 2 and heated. The air flows into the waste container 3 through the air inflow hole 6 provided in the waste container lid 7 and comes into contact with the waste 9 in the bag 8 . A part of the water vapor (gas 16) generated from the waste 9 by air cooling the outer wall of the waste container 3 is transferred to the waste container 3.
The condensed water 15 condenses on the inner wall of the waste treatment chamber 2 and is discharged from the exhaust passage 17 to the outside of the waste treatment chamber 2 . The condensed water 15 discharged from the exhaust passage 17 passes through the drainage passage 18 to the sewer, and the gas 16 passes through the exhaust gas 19 and the exhaust gas purification device 20 to be purified, and then passes through the air supply means 23 to the atmosphere. released.

As described above, according to the second embodiment of the present invention, the blowing means 20 is arranged in the exhaust gas passage 19 on the downstream side of the exhaust passage 17 to suck the air 11 into the waste treatment chamber 2. This makes it difficult for air 11 and gas 16 to leak from the waste treatment chamber 2 to the outside, preventing odor from being generated from the waste treatment chamber 2 during treatment, and condensing the gas 16 discharged from the waste channel 17. This has the effect of being able to reliably separate it from the water 15 and guide it to the exhaust gas purification device 20. Furthermore, when the waste 9 is stored in the waste treatment chamber 2 before treatment, the intake hole 25 is closed by the intake valve, so the waste 9
No odor emitted from the container leaks outside.

[0030]

Effects of the Invention As is clear from the above embodiments, according to the present invention, the waste stored in the waste storage container is heated and dried by the microwave heating means, and at the same time, the waste is supplied from the blowing means. The air cools the outer wall of the waste container, causing some of the water vapor generated from the waste to condense on the inner wall of the waste container, raising the temperature, flowing into the waste container, and removing the waste. Since the waste is air-dried, it can be uniformly dried by heating the waste from the inside using the microwave heating means and from the outside using the air blowing means. Furthermore, condensed water can be discharged together with the exhaust from the waste container.

[0031] In general, when heating and drying using only microwaves, tar-like substances tend to adhere to the surface of the exhaust, but
By using microwaves and hot air in combination, generation of tar-like substances can be suppressed.

As described above, according to the present invention, it is possible to provide a waste treatment apparatus that can uniformly dry waste without causing scorching and has excellent drainage performance of evaporated water.

[Brief explanation of drawings]

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

[Figure 2] Side sectional view of the second embodiment

[Explanation of symbols]

1 Waste input lid 2 Waste treatment room 3 Waste storage container 8 Bag 9 Waste 10 Microwave heating means 12, 23 Ventilation means 15 Condensed water 16 Air 17 Exhaust path 18 Drainage channel 19 Exhaust gas path 20 Exhaust gas purification device

Claims (5)

[Claims] 1. A waste treatment chamber, a waste input lid that covers an opening of the waste treatment chamber, a waste storage container disposed in the waste treatment chamber and containing waste, and a waste storage container for storing waste. a microwave heating means for heating the waste container, a blower means for supplying air into the waste container, and a blower path that cools the outer wall of the waste container and then guides the air into the waste container. A waste treatment device comprising: an exhaust path that guides the air from inside the waste storage container to outside the waste treatment room. 2. The waste treatment apparatus according to claim 1, wherein the air blowing means is arranged downstream of the exhaust passage. 3. The waste treatment apparatus according to claim 1, further comprising a breathable bag provided between the waste container and the waste. 4. Claim 1, wherein the downstream side of the exhaust passage is branched into an exhaust passage for discharging condensed water and an exhaust gas passage for discharging exhaust gas, and an exhaust gas purification device is disposed on the downstream side of the exhaust gas passage. Or the waste treatment device described in 2. 5. The waste treatment apparatus according to claim 1, further comprising means for intermittently controlling the output of the microwave heating means.