JP3211521B2 - Plastic waste treatment apparatus and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relatively small and easy-to-use plastic waste processing apparatus for compressing and reducing the volume of plastic waste generated in a kitchen at home or a small business establishment.

[0002]

2. Description of the Related Art Plastics are stable in daily use temperature ranges and are excellent in weather resistance and chemical resistance. In addition, they are widely used because they have a lower bulk specific gravity than metals and ceramics, and can be made inexpensively to produce products such as containers without being limited in shape. Therefore, the amount of plastic waste tends to increase year by year. It is common for local governments to collect and dispose of used plastic from homes and bury it in landfills or incinerate it. However, the characteristics of the plastic at the time of use become a disadvantage at the time of disposal, and there are problems that the plastic does not decompose spontaneously even if left unattended, and that the collection efficiency is low and the cost is high. Furthermore, the amount of waste cannot keep up with the increasing amount of waste, and the landfill site is currently reaching its limit. Therefore, a campaign to recycle the collected plastic, and an attempt to use it as a fuel as an oil have been started. Further, attempts have been made to reduce the volume of the plastic by heating or mechanically compressing or crushing the plastic, thereby simplifying storage or disposal. For example, there has been devised a device for dissolving and reducing the volume of styrene foam by crushing frictional heat or heating to form a pellet, or a device for mechanically cutting a PET bottle to reduce its use.
However, at present, all of these are large and expensive devices.

[0003]

There are many kinds of plastics on the market. Then, it is necessary to separate them in order to collect them and use them as product raw materials. This sorting work is a factor in increasing the cost of plastic recycling. In addition, some of the expanded polystyrene trays are sorted and collected by citizens' hands, but their recyclable applications are limited, which has not led to significant results. On the other hand, as a plastic volume reduction device,
Although large-scale devices are being developed, there is no device at home that can easily reduce the volume of plastic generated in kitchens and the like. In addition, the method of reducing the volume by heating and dissolving has a risk of generating toxic gas during the heating process. The method of mechanical crushing has problems such as an increase in the size of the apparatus and noise during processing, and cannot be scaled down for home use as it is.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems relating to the disposal of plastics, and simplifies the storage up to disposal by heating and compressing plastics generated in a home kitchen or daily life to reduce the volume. It is another object of the present invention to improve the collection efficiency and landfill efficiency at the time of disposal, and to provide an inexpensive and compact compression volume reduction device particularly suitable for home use.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a vertical capacity for storing plastic.
And the capacity of the storage container using air pressure
Means for changing the volume and heating the plastic in the storage container
Heating with at least a blowing unit and a heating unit
Outlet and suction port for hot air generated by the heating unit
Is provided in the storage container,
Make sure that the suction direction is perpendicular to the direction in which the volume of the
Waste treatment device with blow-off port and suction port opened.
Alternatively, the main container and the plastic provided in the main container
A multi-node storage container that can be expanded and contracted vertically
Airtight space between main container and main container
A bag forming the space and compression means for pumping air into the airtight space
And heating the plastic in the storage container at least
It has a heating section with a wind section and a heating section.
Provide a hot air outlet and suction port in the storage container
At the same time, the direction of hot air blowing and suction
The outlet and suction are perpendicular to the volume variable direction.
A refuse treatment device with an opening. Or the device
And the main container has airtightness and a multi-node storage container.
Garbage disposal device configured with a bag to cover the garbage. Or that
In the device, the bag is a multi-node storage container with the bottom of the main container.
A refuse treatment device that is a balloon-shaped bag provided between the bottoms. Also
Is a storage container for storing plastic and the inside of the storage container.
Dish-shaped bottom plate that moves up and down, and bottom and bottom of storage container
It is provided between the board and the volume is variable by air pressure and has airtightness
A closed container, and means for changing the air pressure of the closed container,
At least a blower for heating the plastic in the storage container
And a heating section having a heating section and heat generated in the heating section.
With a wind outlet and a suction port in the storage container
In addition, the direction of hot air blowing and suction is
Make the outlet and suction port perpendicular to the
Garbage disposal device with opening. Or, in that device,
A waste disposal system in which the sealed container is a balloon-shaped bag
Means.

The volume in the vertical direction for storing plastic is
Variable storage container and storage container volume using air pressure
And heating the plastic in the storage container
Heating with at least a blowing unit and a heating unit for heating
Unit, a temperature detection unit provided in the heating unit, and a control unit for the heating unit
And the hot air outlet and suction port generated by the heating unit
Provided in a container, the outlet and suction port are blown with hot air.
The pumping and suction directions are in the direction in which the volume of the storage container is variable.
Open at right angles to the temperature detector
After the hot air reaches a certain temperature,
Means for solving the problem of the waste treatment method that heats the stick and
did.

[0007]

According to the present invention, there is provided an apparatus for easily and hygienically heat-compressing plastic generated in a home kitchen or the like by the above-described structure and mechanism.

First, the plastic put in the storage container is
Heat with hot air from the heating section. In order to soften general-purpose plastics generated in home kitchens, the glass transition point temperature is one measure. To suppress the generation of gas during processing, it is appropriate to set the hot air temperature to an upper limit of about 130 ° C. It is. The heating is performed by a method in which a hot air outlet and a suction port are provided inside the storage container, and the hot air is internally circulated inside the storage container. As a result, the air circulation path is simplified and the pressure loss is reduced, so that the hot air blows out vigorously and the plastic can be effectively heated. Next, the volume of the storage container containing the softened plastic that has lost elasticity due to the heating is reduced by a volume variable means using air pressure to perform compression.

Further, a multi-node storage container which expands and contracts as a storage container having a variable volume, an airtight bag provided between the main container and the storage container as a volume variable means, and an air pressure between the main container and the bag is applied. In the configuration using the compression means for reducing the pressure, the airtight space formed by the main body container and the bag is pressurized after heating the plastic. At this time, since the bag rises in the main body container, the multi-node storage container shrinks, reducing the volume of the space containing the plastic and compressing the plastic. In this configuration, the pressure applied to the bag is converted into a force that effectively compresses the plastic by the multi-node storage container.

[0010] Further, in the configuration using a dish-shaped bottom plate moving in a plastic storage container, an airtight balloon-shaped bag provided below the bottom plate as compression means, and a means for changing the air pressure in the bag, After heating the plastic, the volume of the bag is expanded by sending air into the balloon-shaped bag and applying pressure. Due to the inflation of the bag, the dish-shaped bottom plate is pushed up to reduce the volume of the space in the container containing the plastic and compress the plastic.

Further, the temperature of the hot air at the outlet is detected during the heating process of the plastic, and based on the detected temperature, the hot air continues to be heated for a certain period of time after reaching the upper limit set temperature. , Increase certainty. Further, after the plastic is compressed, only the blowing unit of the heating unit is operated to blow the storage container to forcibly cool the plastic, thereby shortening the processing time.

By treating with the above-described configuration and method, the plastic is easily heated and then compressed and reduced in volume, the storage until disposal is simplified, the collection and transportation efficiency is improved, and the landfilling efficiency is improved. be able to.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

( Reference Example ) FIG. 1 is a longitudinal sectional view of a main part of one reference example according to the present invention. In FIG. 1, reference numeral 1 denotes an airtight main body container. 2
Is a storage container having a variable inner volume and elasticity provided in the main body container 1. In this embodiment , the container is a bellows-shaped container with a dish-shaped bottom plate. 3 is a heating unit for heating plastic,
A pressure-type sirocco-type blower fan located at the upper part of the main container upper part 1 and circulating a 3A wind, a heater of 3B, a hot air outlet of 3C located in the storage container 2, and 3D
Hot air suction port. Reference numeral 4 is a guide for smoothly expanding and contracting the storage container 2. 5 is a compression means for changing the air pressure in the space between the main container 1 and the bag,
In this reference example , an air pump was used. Reference numeral 6 denotes a temperature detector for detecting the temperature of hot air blowout, and reference numeral 7 denotes a controller for the blower fan 3A and the heater 3B. In addition, the circulation route of the hot air was shown by the arrow in the figure.

Next, the operation will be described. First, the heating unit 3 which is located at the upper part of the main body container 1 and has a door shape is opened, and plastic is put into the storage container 2. Next, blower fan 3A
And the heater 3B, and the hot air outlet 3C
The hot air is blown downward to blow the plastic in the container. In addition, the air is sucked from the suction port 3D, and hot air is circulated in the storage container 2 and circulated in a path shown by an arrow in the drawing. At this time, the temperature of the hot air is detected by the hot air temperature detector 6 and the controller 7 controls the heater input power so that the upper limit is 130 ° C. Then, after sufficiently heating the plastic with hot air, the compressing means is operated to send air between the main container 1 and the storage container 2 to perform pressurization.
The plastic is compressed by raising the bottom of the storage container 2 to reduce the volume. Finally, after maintaining the compressed state until the plastic is cooled to some extent, an operation of reducing the pressure in the space between the main body container 1 and the storage container 2 is performed. The pressure reduction is performed by switching the pressure operation.

In this embodiment , the plastic discarded in the kitchen at home is placed in a storage container and heated and compressed by hot air from a heating unit. The types of plastic are mainly thermoplastic general-purpose plastics such as polystyrene, polyethylene terephthalate, polyethylene, polyvinyl chloride, and polyvinylidene chloride resin. As a heating temperature for effectively performing the compression operation, a glass transition point temperature at which the elasticity of the plastic is significantly reduced is one guide. Most of general-purpose plastics generated in home kitchens have a glass transition point of 100 ° C. or lower, so it is effective to heat the glass to a temperature higher than this temperature. However, when heating is performed at more than 130 ° C., odorous gas may be generated from plastic. For example, when vinyl chloride or vinylidene chloride is heated to 140 ° C. or more, generation of hydrochloric acid gas and vinyl chloride or vinylidene chloride monomer is observed. When the generation of hydrochloric acid gas from vinylidene chloride was investigated, it was hardly observed at a temperature of 130 ° C. or lower. However, when heating was performed at 140 ° C., the occurrence was slightly observed. Also, since the generation of gas depends on the temperature even in the heating results of other plastics, it can be said that the heating temperature is preferably about 100 to 130 ° C. Therefore, in this reference example , heating was performed by controlling the hot air temperature at 130 ° C. The temperature was detected by a temperature detector provided at the outlet of the hot air, and the hot air temperature was controlled. Although plastics have a small heat capacity per se, many of them have poor heat conduction and are actually hard to warm. Therefore, it is important to improve the heat transfer on the surface as much as possible. Therefore, as a method of heating the plastic, a method was adopted in which a hot air outlet and a suction port were provided inside the storage container, and the hot air was directly blown into the storage container and circulated internally. As a result, the wind circulation path is simplified, the pressure loss in the path is reduced, and hot air can be blown out vigorously. Therefore, when the speed of the hot air was increased, heat transfer between the hot air and the plastic was promoted, and the plastic could be heated effectively. When a large amount of plastic is put into a storage container for processing, the circulation path of hot air may be reduced and heating may be insufficient. However, in this configuration, the hot air is always heated to the set temperature. Therefore, a relatively high temperature hot air can be blown to the plastic.
Since the thermoplastic plastic shrinks and reduces in volume to some extent by heating, a circulation path of hot air can be secured with the progress of heating, and heating can be performed effectively. In addition, since the circulation path of hot air is limited to the heating section and the inside of the storage container, even if gas should be generated from plastic,
The amount of leakage to the outside can be minimized. Under such conditions and configuration, after the plastic is warmed, the volume of the storage container is compressed by air pressure to reduce the volume. At this time, since the plastic is softened and the elasticity is reduced, it is possible to apply a smooth and small pressure to plastically deform the plastic. In this reference example , by using a variable-volume storage container and variable-volume means using air pressure for the compression mechanism, it is possible to reduce the weight and size compared to a mechanically-compressed configuration, and to perform safe and relatively simple compression. did it. Actually, since a large force of about 100 kg is obtained with an air pressure of 0.2 to 0.3 kg / cm ² , most plastics can be compressed. When plastic is treated in the present reference example , the plastic before and after the heat compression treatment has a volume of 1 /
The volume could be reduced to about 5.

In this embodiment , a pressure-type sirocco fan was used as the blower fan. This is because it is desirable to use a fan of a type that can generate a wind pressure in order to circulate the hot air without killing it, and a fan that generates a wind pressure, such as a fan such as a turbo fan, may be used. Also, if the hot air blowing and suction ports are open, the plastic may enter the heating section during compression. In this embodiment , the punching metal is fitted into the opening, but it is preferable to use not only the punching metal but also a material having a certain hole diameter and a high aperture ratio and a thickness. Further, in the present reference example , a bellows-shaped container having airtightness is used as the storage container. However, if the storage container is not airtight, if the configuration is such that the bottom of the container is pushed up, the volume of the container can be changed and the compression structure can be changed. Becomes possible. Further, the heater of the heating unit may be any heating element such as a sheath heater or a halogen lamp. Further, although the air pump is used as the compression means, a pressure type fan may be used.

(Embodiment 1 ) FIG. 2 is a longitudinal sectional view of a main part of Embodiment 1 according to the present invention. three
Detailed description of the same components as in Reference Example will be omitted. The difference from the reference example is that the storage container is changed from a bellows-shaped variable-capacity container to a multi-node expandable storage container 2, and a bag 8 having airtightness between the storage container 2 and the main body container 1. And the case 9 is provided outside the main body container. Another difference is that the hot air outlet 3C and the suction port 3D are projected inside the storage container 2, the outlet and the suction port are arranged diagonally, and the opening is provided in the vertical direction. . The storage container 2 and the bag 8 are configured to be detachable from the main container 1.

In the first embodiment, the plastic heating process is a reference.
The operation is almost the same as that of the example. Note that the method of changing the container volume is different. In the present embodiment, after heating the plastic, the space between the main body container 1 and the bag 8 is pressurized by air pressure using a pump. At this time, the bag 8 rises in the main container 1 to move the bottom of the multi-node storage container 2 upward, thereby reducing the space in which the plastic is present and compressing the plastic.

Heat compression treatment was performed using plastic discarded in a home kitchen. In the present embodiment, as the compression structure, a multi-node storage container is used as the storage container, an airtight bag is used as the volume variable means, and an air pump is used as the compression means for increasing and decreasing the air pressure between the main container and the bag. as a result,
The compressibility and certainty of the plastic could be improved. In the multi-node container, the container bottom plate moves up to the blowing surface of the heating unit. Therefore, compared to the bellows-shaped storage container of the reference example , the dead space at the time of compressing the plastic is reduced, so that the compressibility of the plastic after the treatment is reduced by 1 /.
Up to 6. Since this dead space has a large effect on the compression state of the plastic, it is actually desirable that the dead space be smaller. In addition, since the container receives the air pressure through the bag, the container easily rises uniformly in the storage container itself. And because the container itself is rigid, plastic
It became possible to compress at a higher pressure than the reference example . Furthermore, since the bag is located outside the storage container, liquid dirt is prevented from spilling into the main container, and is easily removed and cleaned. In addition, the hot air outlet and the suction port protrude inside the storage container, and are arranged diagonally, and the openings are provided in the vertical direction, so that the compression surface of the heating unit is made flat. . In the reference example , the blow-out and suction ports have a compression surface, so that the plastic may enter the portion at the time of compression, and the processed plastic may stick. However, in this embodiment, since the blowing and suction ports were not on the compression surface and the compression surface was flat, it was possible to prevent sticking of plastic.

(Embodiment 2 ) FIG. 3 is a longitudinal sectional view of a main part of Embodiment 2 according to the present invention. Detailed description of the same components as those in the first embodiment will be omitted. Example
The difference from 1 is that 10 dish-shaped bottom plates are provided in the storage container 2 and 8 airtight balloon-shaped bags provided below the bottom plate 10 are used as compression means.

In the second embodiment, the operation is substantially the same as in the first embodiment. The difference lies in the compression operation after heating the plastic. In this embodiment, air is blown into the bag 8 by the air pump 5 to expand the volume, the bottom plate 10 is lifted upward, and the plastic is compressed.

Also in the present embodiment, heating and compression treatment was performed using plastic discarded in a home kitchen. as a result,
The same compression performance as in Example 1 could be obtained. In the present embodiment, a bottom plate that moves in the main body container is employed instead of the multi-node shaped elastic storage container. As a result, the weight of the bottom plate is reduced to one third of that of the multi-node storage container, the configuration can be simplified, and the size and cost of the device can be reduced. Further, since the configuration is simple, the cleanability of the inside of the main body container and the bottom plate is also improved. Furthermore, by using a balloon-shaped bag, the attachment of the bag is simplified, and stress is less likely to be applied to the bag attachment portion, thereby reducing the risk of air leakage. Example 1
Approximately 20% of the compression time can be reduced as compared with the bag of No. 1.

In this embodiment, when the strength of the bottom plate is not high to some extent, the plate is bent during compression, so that the compressive force is absorbed and the compression of the plastic may be insufficient. The same applies to other embodiments, and it is desirable that the compression surface on the upper surface and the bottom plate of the container to be compressed be made of a material having a certain strength or a material having high rigidity. In addition, since the bottom plate is provided with a turn-up on the upper side to form a dish, liquid stains can be prevented from spilling into the storage container. In addition, by providing the folded portion of the edge portion of the dish, it becomes difficult to cause twisting between the dish and the storage container at the time of compression. The turnback is desirably about 20 to 60 mm. Further, in this embodiment, a balloon-shaped bag is used as the compression means, but an airtight airtight container such as a bellows whose volume can be changed by air pressure may be used instead.

(Embodiment 3 ) In this embodiment, since the same components as those in Embodiment 2 are used, detailed description thereof will be omitted.

In the third embodiment, the operation is substantially the same as in the second embodiment. In this embodiment, the temperature detection unit 6 measures the hot air temperature during heating by controlling the hot air temperature during heating of the plastic, and performs heating at a constant hot air temperature for a fixed time.

Also in this embodiment, heating and compression treatment was performed using plastic discarded in a kitchen at home. In the apparatus shown in this embodiment, due to its configuration, the hot air temperature reaches the upper limit set temperature earlier than the temperature rise of the plastic. If the storage container is contracted at that time, it may not be possible to effectively compress the container. The reason is that the plastic is not sufficiently heated and is not uniformly heated, and it is highly possible that a part or the whole of the plastic is at or below the glass transition temperature. Therefore, in the present embodiment, the processing is performed by a method of heating for a certain period of time after the hot air temperature reaches the set temperature. As a result, the plastic can be sufficiently heated, so that a part is hardly cooled during the compression and a portion having a strength does not occur, and the compressibility of the plastic and the reliability of the compression are improved. The constant heating time at the upper limit of the hot air temperature varies depending on the amount of the plastic to be treated and the like. In this embodiment, the heating is performed in the range of 10 to 30 minutes. The time required for the constant heating can be predicted to some extent by the initial rising time of the hot air. In the apparatus shown in this embodiment, when a large amount of plastic is stored in the storage container due to its configuration, the circulation space of the hot air becomes small, and the hot air temperature rises faster than when the amount of plastic is small. Based on the rise time, a heating time corresponding to the amount of plastic can be set.

(Embodiment 4 ) In this embodiment, the same components as those in Embodiment 2 are used, and a detailed description thereof will be omitted.

In the fourth embodiment, the operation is substantially the same as in the second embodiment. In the present embodiment, after heating and compressing the plastic, the blower fan 3A of the heating unit is operated without energizing the heater 3B to blow air to the compressed plastic.

Also in this embodiment, heating and compression treatment was performed using plastic discarded in a home kitchen. Plastic does not have much heat capacity, but has poor thermal conductivity. Especially when the plastic is compressed by the apparatus of this embodiment,
Since the volume is reduced, the area in contact with the outside air is reduced. For this reason, the plastic after compression is difficult to cool, and there is a danger of burns if removed immediately after compression. Therefore, immediately after the compression, the blower fan was operated to blow air to the plastic, thereby performing a process of improving heat transfer and cooling. As a result, the plastic is heated to 50 ° C from the temperature after heating.
The time required for cooling to about 2 hours was able to be shortened to about 1/2 compared with the case where air was not blown by a fan. Also,
If the plastic is taken out immediately after the heating and compression, those having a temperature higher than the glass transition temperature may return to the original shape due to its elasticity. However, such a problem could be prevented by performing cooling in a compressed state after heating and compression.

In this embodiment, the bag is made of nylon cloth coated with silicone resin to improve airtightness and strength. However, the bag is excellent in airtightness and bending strength. A bag made of a material, for example, a bag made of polybutylene terephthalate may be used.

[0032]

As described above, the present invention provides a storage container having a variable capacity for storing plastic, a means for changing the volume of the storage container using air pressure, and blowing hot air into the storage container for heating the plastic in the storage container. A refuse treatment apparatus that has a heating section having a mouth and a suction port and heats plastic so that hot air circulates inside the storage container. Or, an airtight main body container, an elastic multi-node storage container for storing plastic provided in the main body container, an airtight bag provided between the main body container and the storage container, and a main body container. Compressing means for increasing and decreasing the air pressure between the bags, and a heating unit having a hot air outlet and a suction port inside the storage container for heating the plastic in the storage container, so that the hot air circulates inside the storage container. Waste treatment equipment that heats plastic. Alternatively, a storage container, a dish-shaped bottom plate moving in the storage container, an airtight airtight container located between the storage container and the bottom plate, the volume of which is variable by air pressure, and means for changing the air pressure of the airtight container And a heating unit having a hot air blow-out port and a suction port inside the storage container for heating plastic in the storage container. Furthermore, it has a main body container, a plastic storage container which is located in the main body container and expands and contracts in the vertical direction, an expansion / contraction means of the storage container, and a hot air outlet and a suction port inside the storage container for heating plastic in the storage container. It has a heating unit, a temperature detection unit provided at a heating unit hot air outlet, and a control unit for the heating unit, and heats the plastic so that hot air circulates inside the storage container, and the temperature detection unit reaches a certain temperature. After that, the plastic is heated for a certain period of time. Also, a variable volume storage container for storing plastic, a volume variable means of the storage container using air pressure, and a hot air blowout port and a suction port inside the storage container for heating the plastic in the storage container, and a blowing unit and heat generation. A heating unit having a unit, a temperature detection unit provided in a hot air outlet, and a control unit of the heating unit, after heating the plastic so that hot air circulates inside the storage container and performing a compression operation, By using a processing method that activates the air blower and blows air into the plastic, the plastic generated in the kitchen at home or in daily life is heated and compressed to reduce its volume, simplifying storage up to disposal and further improving collection efficiency and disposal efficiency. Improve landfill efficiency. Further, by heating the plastic above the glass transition temperature, the mechanical strength is reduced, the force required for compression is reduced, and plastic deformation is also possible. Furthermore, the volume of the storage container with variable volume is
By adopting a configuration in which the volume is reduced by the volume variable means using air pressure to perform compression, it is possible to greatly reduce the size as compared with a mechanical compression device. In addition, a hot air outlet and a suction port are provided inside the storage container, and heating is performed so that the hot air is internally circulated inside the storage container, thereby simplifying the air circulation path and reducing pressure loss of the fan,
Hot air can be blown out vigorously to effectively heat the plastic. In addition, by setting a constant temperature heating time of the plastic and cooling treatment after the heating and compression, the reliability of the compression volume reduction and the safety after the treatment are improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of a plastic refuse treatment apparatus according to a reference example of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the plastic waste treatment apparatus according to the first embodiment of the present invention.

FIG. 3 is a longitudinal sectional view of a main part of a plastic waste treatment apparatus according to second , third and fourth embodiments of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body container 2 Storage container 3 Heating part 3A Blow fan 3B Heater 3C Blow-out port 3D suction port 5 Air pump 6 Temperature detection part 7 Control part 8 Bag 10 Bottom plate

Continuation of the front page (72) Inventor Hiromi Hirota 1006 Kazuma Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-5-92179 (JP, A) JP-A-4-256486 (JP) JP-A-5-104526 (JP, A) JP-A-56-28687 (JP, A) JP-A-4-11608 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB Name) B29B 17/00 B09B 3/00 301 B09B 3/00 303

Claims (7)

(57) [Claims] 1. A plastic container for storing a volume in a vertical direction.
A variable accommodating container, and means for varying the volume of the container by utilizing the air pressure, a heating portion for heating the plastic in the container, the heating unit is composed of at least the blower unit and heating unit An outlet and a suction port for hot air generated by the heating unit are provided in the storage container.
In addition, the blowing and suction directions of hot air are
The outlet so as to be orthogonal to the product variable direction and
A refuse treatment apparatus characterized by opening a suction port . 2. A main container, a multi-node storage container which stores plastic provided in the main container and is vertically expandable and contractable, and a multi-node storage container provided between the main container and the storage container. A bag forming an airtight space therebetween, compression means for feeding air into the airtight space, a heating unit for heating the plastic in the storage container, and the heating unit comprising at least a blowing unit and a heating unit , An outlet and a suction port for the hot air generated by the heating unit are provided in the storage container.
In addition , the blowing and suction directions of hot air are
The outlet so as to be orthogonal to the product variable direction and
A refuse treatment apparatus characterized by opening a suction port . 3. The refuse treatment apparatus according to claim 2, wherein the main container has airtightness, and the bag is configured to cover the multi-node storage container. 4. The waste disposal apparatus according to claim 2, wherein the bag is a balloon-shaped bag provided between the bottom of the main container and the bottom of the multi-noded storage container. 5. A storage container for storing plastic, a dish-shaped bottom plate moving vertically in said storage container, and a volume variable by air pressure and airtight provided between the bottom surface of said storage container and said bottom plate. A closed container having a property, means for changing the air pressure of the closed container, a heating unit for heating the plastic in the storage container, and the heating unit comprising at least a blower unit and a heating unit , and generated by the heating unit. And a hot air outlet and a suction port are provided in the storage container.
In addition , the blowing and suction directions of hot air are
The outlet so as to be orthogonal to the product variable direction and
A refuse treatment apparatus characterized by opening a suction port . 6. The refuse treatment apparatus according to claim 5 , wherein the closed container is a balloon-shaped bag. 7. A vertical capacity for storing plastic.
A variable storage container, means for varying the volume of the storage container using air pressure, a heating unit for heating the plastic in the storage container, a temperature detection unit provided in the heating unit, A control unit of a heating unit , the heating unit is configured with at least a blowing unit and a heating unit , and a blowing port and a suction port of hot air generated by the heating unit are provided in the storage container ;
The blow-out port and the suction port are blown and sucked by hot air.
The pulling direction is perpendicular to the direction in which the volume of the storage container is variable.
A waste treatment method in which the plastic is heated for a certain period of time even after the hot air at the temperature detection unit reaches a certain temperature.