JP3063249B2 - Waste treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refuse treatment apparatus capable of reducing the weight and volume at a place where refuse is generated and improving sanitation.

[0002]

2. Description of the Related Art Conventionally, a disposer used as an individual refuse disposal apparatus mechanically disposes of garbage finely, so that a large amount of solids and organic substances are discharged into wastewater, thereby causing river pollution. It has become a major social problem, and its use has been banned in Japan and the United States.

[0003] Therefore, waste is generally transported to a final disposal site such as an incineration plant by a garbage truck. Although garbage trucks improve transportation efficiency by a mechanism that compresses and reduces the volume of garbage, plastic waste such as packaging materials and containers is bulky among garbage, transport costs are high, and landfill space is high. Has the problem of becoming enormous. In particular, in recent years, there has been a strong demand for recycling of plastics, and the necessity of reducing the recycling cost has been highlighted.

[0004] For this reason, in order to reduce the recovery cost, which accounts for a large part of the recycling cost, several means for reducing the volume of the bulky plastic waste at the place where it is generated are being used. For example, there is a method of cutting or a method of compressing, but the former has a high processing speed, but there is a problem that the volume except for containers hardly decreases, and the latter has a high processing speed, but the volume does not decrease significantly. However, there is a problem in that if the fibers are not bound after being compressed, they expand again. Compared to these methods, the method of deforming by heating has the largest volume reduction rate, and particularly can greatly reduce the volume of expanded polystyrene, and is expected to be the most economical method.

[0005]

In the refuse treatment apparatus of such a heating method, waste in a state where heat is hardly transmitted to a central portion such as a lump of expanded polystyrene or plastic in a bag of polyethylene is heated. However, since the temperature of the central portion is hardly increased even when the heating is performed, there is a problem that it takes a long heating time until the whole is softened. Also, if the heating temperature is too high to increase the softening rate, the plastic waste will emit smoke, and odors and chlorine compounds will be generated, which makes it difficult to perform high-speed processing. As a result, there is a problem that cleaning becomes difficult.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and is a sanitary disposal system capable of reducing the volume of sanitary waste such as plastic waste which is easily deformed at high speed and improving the economical efficiency of recycling. It is intended to provide a device.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an outer container having an inwardly projecting flange at an opening, and detachably attached to the outer container with the opening suspended from the flange. A first bag that is freely mounted inside and is detachably mounted on the bag body by being suspended and supported by a flange of the outer container with an opening of the bag body interposed therebetween, and a bottom portion communicating with the inside of the bag body; A ventilation hole is provided on the upper part of the garbage container provided with a second ventilation hole communicating with the outside of the bag body, and an opening of the garbage container is opened and closed, and a lower surface thereof communicates with the second ventilation hole. A suction port provided with a discharge hole communicating with the waste container, and a lid having a ventilation path communicating the suction hole and the discharge hole; and Hot air sending means for sucking air from the air and sending out hot air to the discharge holes. Ete are those that you configured.

[0008]

According to the present invention having the above-described structure, the hot air sent from the hot air generating means in the lid can be discharged from the outlet of the lid.
Since the air is circulated through the inside of the garbage container, the first ventilation hole of the garbage container, the inside of the bag, the second ventilation hole of the garbage container, the intake hole of the lid, and the hot air generating means, the heat transfer efficiency between the hot air and the garbage increases. As a result, the heating time can be shortened, and the volume of plastic waste and the like which is easily deformed by heat can be reduced at high speed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, a bag 1 made of a heat-resistant film such as PBT is suspended by a flange 2a having an opening 1a projecting inward from a bottomed cylindrical outer container 2. And is detachably mounted on the outer container 2. The bottomed cylindrical waste container 3 is suspended from the flange 2 a of the outer container 2 with the opening 1 a of the bag 1 interposed therebetween and is detachably mounted on the bag 1. A closed space 4 is formed between the trash container 3 and the bag 1. At the bottom of the refuse container 3, a first ventilation hole 5 for communicating the inside of the refuse container 3 with the closed space 4 is provided,
In addition, a second ventilation hole 6 communicating with the outside of the closed space 4 is provided at the upper part.
Is provided.

At the opening of the refuse container 3, a lid 7 covering this opening is hinged to a support 8 so as to be openable and closable. Lid 7
Is formed of a lower plate 7a and a cover plate 7b. The lower plate 7a is provided with a discharge hole 9 for discharging hot air into the refuse container 3 and an intake hole 10 communicating with the second ventilation hole 6 of the refuse container 3. The discharge hole 9 and the discharge hole 10 are communicated with each other through a ventilation path 11.
A hot air sending means 14 for sending hot air from the discharge hole 9 is provided in the ventilation path 11 and includes a blower 12 and a heater 13 provided downstream of the blower 12. Reference numeral 15 denotes a packing provided in the lid 7 for air-tightly communicating the intake hole 10 and the second ventilation hole 6.

An oxidation catalyst 16 to be heated by the heater 13 is provided downstream of the heater 13 of the hot air sending means 14. Further, a temperature controller 17 for controlling the temperature of the hot air is provided downstream of the heater 13.

In the above configuration, the waste 1 in the waste container 3
When the hot air delivery means 14 is operated with the lid 8 closed and the lid 7 closed, the hot air is supplied to the hot air delivery means 14 as shown by the arrow.
-Discharge hole 9-refuse container 3-first ventilation hole 5-sealed space 4
The second ventilation hole 6-the suction hole 10-circulates in the path of the hot air sending means 14 to heat the refuse 18.

In the heating by the hot air, if chloride-based plastic is contained in the refuse 18, the temperature becomes 200.
If the temperature exceeds ℃, an extremely large amount of chlorides is decomposed, so that the temperature of the hot air is controlled by the temperature control means 17 so that the plastic is softened and the decomposition amount is in the range of 120 ° C to 150 ° C. Then, although the refuse 18 is heated from the upper portion, the amount of heat circulating increases by increasing the air volume, and the lower portion of the refuse 18 is also rapidly heated. In the hot air circulation path, the bag 1 having the largest surface area
Is a film, its heat capacity is small, the temperature drop of the hot air returning to the hot air sending means 14 is also small, and the processing time is shortened.

As described above, according to the refuse treatment apparatus of the embodiment of the present invention, the refuse 18 is heated by the circulating hot air at an appropriate temperature to soften the refuse such as plastic waste in the refuse container 3 to reduce its volume. Volume can be reduced. In addition, since the hot air is circulated, the processing time can be shortened.

Since the trash container 3 is detachable,
By washing with water, dirt attached to the inner and outer surfaces can be removed. Further, since the bag 1 is detachable, the processed waste 18 can be stored in the bag 1 and discarded. Further, since the odor generated during the heat treatment is oxidized by the oxidation catalyst 19, the odor can be reduced.

If a large number of bags 1 are stacked and housed in the outer container 2, the inside of the bag 1 can be reduced in time by discarding the inside of the bag 1 sequentially, and the bag 1 can be saved. Since the heat insulating property of (1) is enhanced, the processing can be further speeded up.

If the inner surface of the bag 1 is coated with an alkaline substance such as calcium carbonate or potassium carbonate or an adsorbing substance such as activated carbon,
Since a chloride such as hydrochloric acid can be reacted or adsorbed, the processing temperature can be increased to enable higher-speed processing.

Next, another embodiment of the present invention will be described with reference to FIG. Note that only the configuration different from that shown in the first embodiment will be described.

As shown in the figure, the opening 1a of the bag 1 housed in the outer container 2 is fastened to the outer container 2 by a suitable fastener 19. The garbage container 3 contained in the bag body 1 is formed telescopically so as to be stretchable. Numeral 20 denotes a differential pressure generating means comprising an air pump for generating a pressure difference between the inside and outside of the bag 1 for feeding and exhausting a pressurized space 21 formed between the outer container 2 and the bag 1. .

In the above configuration, after heating the refuse 18, the differential pressure generating means 20 is operated to send air to the pressurized space 21. When the pressure difference between the inside and the outside of the bag 1 is set to 0.1 to 1 kg / cm ² , the bag 1 is compressed by air pressure so that the elastic garbage container 3
The waste 18 such as plastic waste which is heated and softened in the waste container 2 is plastically deformed by this force. This pressurization causes refuse 18 such as plastic waste and the like.
Can be reduced to about one-tenth or less. After the compression process is completed, if the operation of the differential pressure generating means 20 is reversed to reduce the pressure in the pressurized space 21, the bag 1 expands and the refuse container 3 returns to its original shape, so the next refuse 18 is charged. be able to.

[0022]

As is apparent from the above description of the embodiment, according to the present invention, by circulating the hot air sent from the hot air generating means in the lid and heating the dust, the hot air and the heat of the dust are heated. Higher transmission efficiency reduces heating time,
It is possible to quickly reduce the volume of plastic waste and the like that is easily deformed by heat.

As described above, it is possible to provide a refuse treatment apparatus capable of reducing the volume of sanitary waste such as plastic waste which is easily deformed by heat at a high speed and improving the economical efficiency of recycling. .

[Brief description of the drawings]

FIG. 1 is a side sectional view of a waste disposal apparatus according to an embodiment of the present invention.

FIG. 2 is a side sectional view of a refuse treatment apparatus of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag 1a Opening of bag 2 Outer container 2a Flange 3 Garbage container 5 First ventilation hole 6 Second ventilation hole 7 Lid 9 Discharge hole 10 Suction hole 11 Vent path 14 Blowing means 16 Oxidation catalyst 17 Temperature control Means 18 Garbage 20 Differential pressure generating means 17 Heater

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kunihiro Ukai 1006 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) B09B 3/00 B65F 1/14

Claims (6)

(57) [Claims] 1. An outer container having a flange protruding inward at an opening, a bag body removably mounted on the outer container with the opening suspended from the flange, and an opening of the bag body. A first ventilation hole which is suspended from the flange of the outer container and is detachably mounted on the bag body with a bottom interposed therebetween, and a first vent hole communicating with the bag body at the bottom thereof, and a second vent communicating with the outside of the bag body at the top. A trash container provided with a ventilation hole, and an opening that opens and closes the opening of the garbage container, and an intake hole that communicates with the second ventilation hole on the lower surface thereof, and a discharge hole that communicates with the garbage container. A cover provided with an air passage communicating the suction hole and the discharge hole, and a hot air sending means disposed in the air passage for sucking air from the suction hole and sending hot air to the discharge hole; A refuse treatment device comprising: 2. The refuse treatment apparatus according to claim 1, further comprising temperature control means for controlling the temperature of the hot air. 3. The waste disposal apparatus according to claim 1, further comprising: a waste container formed in a telescopic shape; and a differential pressure generating means for generating a pressure difference between inside and outside of the bag. 4. The refuse treatment apparatus according to claim 1, wherein an inner surface of the bag is coated with an alkaline substance. 5. The refuse treatment apparatus according to claim 1, wherein the inner surface of the bag is covered with an adsorbent. 6. The refuse treatment apparatus according to claim 1, wherein an oxidation catalyst is provided in an air passage downstream of the hot air generating means.