JP2004026497A - Method and apparatus for compressed storage of wastes, and container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for compressed storage of wastes capable of efficiently storing and transporting the wastes such as plastic refuse and allowing classification/recycling plants to be constructed even in those lands of cities near waste delivery sites where site areas are limited. <P>SOLUTION: A lift type slide door 5a provided at the inlet part of a container 5 is opened and closed by a lift type slide door open/close mechanism 43a fixedly installed near a compactor 4. When the lift type slide door 5a of the container 5 is closed, the push-in surface 4d of the compactor 4 is moved forward once to the inside of the container 5 and moved backward to the position of the lift type slide door 5a and then stopped. After that, the lift type slide door 5a is closed along the push-in surface 4d. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates generally to the separation and recycling of waste such as plastic waste discharged from homes and business establishments, and more particularly to the compression of waste with the aim of improving storage and transport efficiency. The present invention relates to an accommodation method and a compression accommodation device.
[0002]
[Prior art]
Recyclable waste (for example, plastic waste such as plastic bottles, plastic films and trays and cans) discharged from homes or offices is collected by a garbage truck and sent to a separation and recycling plant. It is transported and separated and recycled. Normally, the separation / recycling line is designed to operate every day to average the amount of collected garbage, but the collection of garbage is not carried out every day, and once to three times a week. Often done in. Therefore, a large-volume storage space (generally called a pit) capable of storing garbage for one week or two to four days is required.
[0003]
In addition, in order to improve the efficiency of transporting garbage, including incinerated garbage (eg, kitchen waste such as food residues), municipal garbage collected by garbage trucks is transported to a transfer station located near the city. Garbage can be refilled into large-sized garbage containers and then transported to a garbage disposal site by container trucks or ships. Container transportation space is required because the transportation time and frequency of large containers are different.
[0004]
As a technique for addressing these problems, there is an automatic warehouse system in which a container filled with refuse is stored in a three-dimensional storage shelf by a stacker crane (for example, see Patent Document 1). Further, there is a system that uses the automatic warehouse system as a substitute for a pit of a sorting / recycling plant (for example, see Patent Document 2).
[0005]
Also, at the transfer station, when filling the container with garbage, the garbage is compressed and stored using a compression device (hereinafter referred to as a compactor), and a lid plate is provided on one side of the container. Is fixed by a lock mechanism such as a locking pin so that it can be attached and detached.When compressing and storing garbage in the container, the lid plate is combined with the compactor and used as a pushing plate, and the garbage in the container is When the compression is completed, the lid plate is positioned and stopped on the side of the container, and then the locking mechanism such as the locking pin is operated by the operating mechanism attached to the compactor side, and the lid plate is attached again, which is a container compression and storage system. Is known (for example, refer to Patent Document 3).
[0006]
[Patent Document 1]
JP-A-8-12013
[0007]
[Patent Document 2]
JP-A-10-218304
[0008]
[Patent Document 3]
JP-A-8-40505
[0009]
[Problems to be solved by the invention]
However, in recent years, the amount of waste such as plastic waste has been increasing year by year, and the storage space for waste required in a sorting / recycling plant has been increasing. In particular, the case of plastic waste having a low bulk density is serious.
[0010]
On the other hand, from the viewpoint of collection efficiency of collection vehicles (running distance and collection time of collection vehicles), it is desirable to construct a sorting / recycling plant near the city where plastic waste is discharged.・ Site area is limited.
[0011]
In order to cope with the above situation, it is necessary to improve the storage efficiency and transportation efficiency of plastic waste and the like, but the container compression and storage system described in Patent Document 3 will be applied to plastic waste and the like. Then, there are problems in terms of storage efficiency and transportation efficiency from the following points.
[0012]
That is, in the container compression housing system described in Patent Document 3, since the lid plate of the container is detachable and used as a pushing plate of the compactor, the structure of the container and the compactor is complicated, and the operation procedure thereof is complicated. Is also complicated, and because the frontage area of the container entrance cannot be increased and the detachable lid may fall into the container during compression, the push plate cannot enter deeply into the container. Certain plastic waste cannot be quickly pushed into the container. Therefore, it is difficult to efficiently store and transport plastic waste and the like.
[0013]
The present invention has been made in order to solve the above-described problems, and can efficiently store and transport waste such as plastic garbage. It is an object of the present invention to provide a method and apparatus for compressing and storing waste, which enables construction of a separation / recycling plant even on limited land.
[0014]
Another object of the present invention is to provide a container which is suitable for compressively storing waste such as plastic refuse, and which can efficiently discharge the waste.
[0015]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has the following features.
[0016]
[1] A method of compressing and storing waste in a container having a door having an opening / closing door at an entrance portion by compressing the waste with a compression device having a pushing plate, wherein the container entrance portion and the compression device are pushed in. An arranging step of arranging the container with respect to the compression device such that a pushing surface of the plate faces each other, a door opening step of opening an opening / closing door at a container entrance by a door opening / closing mechanism installed outside the container, Advancing toward the inside of the container, a compression housing step of compressing and housing the waste supplied in front of the pressing surface of the pressing plate inside the container, and a pressing surface of the pressing plate. A door that closes an opening / closing door at an entrance of the container by the door opening / closing mechanism after being once advanced inside the container and then retracted outside the container. And a method for compressing and storing waste.
[0017]
[2] The method for compressing and storing waste according to [1], wherein the waste is plastic waste.
[0018]
[3] A waste compression and storage device for storing waste in a container having an opening / closing door at an entrance, comprising a pushing plate arranged so that a pushing surface faces an entrance of the container. A compression device for advancing the waste supplied in front of the pushing plate on the pushing surface and compressing and storing the waste inside the container; and a waste supply mechanism for supplying waste in front of the pushing plate, A mechanism installed outside the container to open and close an opening / closing door at an entrance of the container, wherein the push plate once advanced inside the container is retracted outside the container, and then the entrance of the container is opened. And a door opening / closing mechanism for closing an opening / closing door of the unit.
[0019]
[4] The compression storage device for waste according to [3], wherein the opening / closing door at the entrance of the container is a sliding door.
[0020]
[5] The apparatus for compressing and storing waste according to [3] or [4], wherein the waste is plastic waste.
[0021]
[6] A container comprising: a first opening / closing door formed of a sliding door; and a second opening / closing door provided to face the first opening / closing door.
[0022]
[7] A container characterized by being provided with an opening / closing door which is a revolving door and which also becomes a sliding door by sliding a part of the door surface.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the method and apparatus for compressing and storing waste of the present invention will be described below.
[0024]
This embodiment can be applied to all kinds of waste including recyclable waste and incinerated waste, but the following description will be made by taking as an example the case of plastic waste which is particularly problematic due to low bulk density. .
[0025]
1 and 2 show a method for compressing and storing waste according to an embodiment of the present invention and a compressing and storing apparatus incorporated in a sorting and recycling facility. FIG. 1 is a side view thereof, and FIG. 2 is a top view thereof. It is. FIG. 3 is a diagram showing a structure of a container used at that time, and FIG. 4 is a diagram showing a configuration of a control device. FIGS. 5, 6, and 7 are operation process diagrams showing detailed operation procedures.
[0026]
In FIG. 1 and FIG. 2, the plastic waste W collected by the waste collection vehicle 1 is dropped from a platform 2 to a receiving hopper 3. The plastic waste W dropped into the receiving hopper 3 is put into a compression chamber 4b located below the receiving hopper 3, and is actuated by the compactor 4 to be compressed inside the container 5 by the piston 4a and the pushing plate 4c. It is pushed and housed.
[0027]
Note that the container 5 is initially stored in an empty state on the three-dimensional storage shelf 7, and is conveyed to the vicinity of the compactor 4 via a conveying mechanism such as a stacker crane 8, a conveyor 10 with a lifter and a receiving conveyor 9, It is connected and fixed to the compactor 4 by the container lock / release mechanism 42 (FIG. 4). On the other hand, in the compression chamber 4b of the compactor 4, an up / down sliding gate 6 is provided on the side connected to the container 5 in order to suppress the outflow of the plastic waste W dropped when the container 5 is not connected. The elevating slide gate 6 is opened and closed by a compactor elevating slide gate opening / closing mechanism 41 such as a hydraulic or electric drive cylinder.
[0028]
Then, the container 5 in which the plastic refuse W is compressed and stored is stored in the three-dimensional storage shelf 7 by the stacker crane 8 via the transfer mechanism such as the receiving conveyor 9 and the conveyor 10 with the lifter.
[0029]
The container 5 stored in the three-dimensional storage shelf 7 is then carried out to the discharge port of the plastic waste W via a transport mechanism such as the stacker crane 8 and the carry-out conveyor 21. A separation resource recycling line is adjacent to the discharge port, and the compressed plastic waste W is discharged from the container 5 carried out to the discharge port to the supply hopper 23 of the separation resource recycling line by the discharge piston 22. You. At this time, the discharge piston 22 is pushed in from the slide door 5a side in a state where both the liftable slide door 5a and the lower-opening door 5b are open, and dust is discharged from the lower-opening door 5b. The discharged container 5 is stored again in the three-dimensional storage shelf 7 via a transport mechanism such as the stacker crane 8 and the unloading conveyor 21.
[0030]
FIG. 3 shows the structure of the container 5 used in the above. FIG. 3A is a longitudinal sectional view, and FIG. 3B is a front view. The container 5 has an entrance on the side connected to the compactor 4 and an elevating slide door 5a provided therein, and an opposite side of the separation / recycling line side is an exit and a downward-opening door 5b provided there. I have.
[0031]
The elevating slide door 5a has a structure in which it is opened and closed in a size close to the entire surface of the container cross-sectional area by sliding vertically, and when the plastic waste W is compressed and stored in the compactor 4, When the plastic waste W is discharged by the discharge piston 22 when the plastic dust W is discharged by the discharge piston 22, the lift slide door is fixed and installed near the discharge piston 22. It is opened and closed by the opening and closing mechanism 43b. The lower part of the elevating slide door 5a is tapered so that it can be easily closed.
[0032]
On the other hand, the bottom-opening door 5b has a structure in which it rotates about a door rotation shaft 5f provided at the upper part of the container so that it can be opened and closed almost in the entire area of the container cross section. 4 and is locked by a lock mechanism 5c including a lock arm 5d and a lock arm rotating shaft 5e so as not to open and close during transportation by the stacker crane 8 or the conveyor 9 and storage in the three-dimensional storage shelf 7. It has become. When the plastic waste W is discharged by the discharge piston 22, the lower open door lock / release mechanism 46 and the lower open door opening / closing mechanism 47 fixed and installed near the discharge piston are opened and closed.
[0033]
A detailed operation procedure when compressing and storing the plastic waste W in the container 5 having such an opening / closing door will be described below.
[0034]
First, as shown in FIG. 5 (a), empty containers 5 from the three-dimensional storage shelves 7 where the containers 5 are stored fill the heights of the stacker crane 8, the receiving conveyor 9, and the stacker crane 8 and the receiving conveyor 9. It is transported to the vicinity of the compactor 4 via a transport mechanism such as a conveyor 10 with a lifter that performs delivery and is connected to the compactor 4 by a container lock / release mechanism 42.
[0035]
Then, as shown in FIG. 5B, the lifting / lowering slide gate 6 of the compactor 4 is opened by the compactor lifting / lowering slide gate opening / closing mechanism 41, and the lifting / lowering slide door 5a of the opening / closing door type container 5 is changed to the container lifting / lowering slide door. It is opened by the opening / closing mechanism 43a.
[0036]
Next, as shown in FIG. 5C, the piston 4a is operated, and the pushing plate 4c provided at the tip of the piston 4a is reciprocated by the piston drive mechanism 44 composed of a hydraulic cylinder, so that dust is collected. The plastic waste W introduced from the car 1 is pushed into the container 5 while being compressed. The size and shape of the pushing surface 4d of the pushing plate 4c substantially correspond to the size and shape of the opening when the sliding door is opened. The pressing stroke of the piston 4a is variably controlled by the compactor control device 33 based on the number of times of pressing and the conditions of the pressing reaction force estimated from the piston hydraulic pressure detection sensor 45, thereby shortening the compression time and increasing the compression efficiency. I'm trying.
[0037]
For example, when there is little plastic refuse in the container 5 and the number of times of pushing or the pushing reaction force is small, the pushing stroke is long and the plastic trash is compressed to the inner side of the container 5. When the amount of plastic waste in the container 5 is increasing and the number of times of pushing or the pushing reaction force is large, the pushing stroke is shortened and the compression operation is adjusted in a short time to perform an efficient compressing operation. ing. As the compression characteristics of the plastic waste, the pressing force is sufficiently transmitted to the plastic waste in the vicinity of the pushing plate 4c, but the point farther from the pushing plate 4c cannot be efficiently compressed because the pushing pressure is not transmitted. It is more efficient to push the piston 4a as long as possible to push the plastic dust stored on the outlet side of the container 5 as much as possible. In order to detect the amount of plastic dust W contained in the container 5, the state of the pushing reaction force is estimated from the piston hydraulic pressure detection sensor 45 attached to the piston 4a, or the weight of the connected content 5 is determined. Is measured by a load cell or the like.
[0038]
When the plastic waste W fills the content 5, the vertical slide door 5a of the container 5 is closed by the following procedure.
[0039]
First, as shown in FIG. 6 (d), the piston 4 a is extended, and the pushing plate 4 c is advanced to a position where the pushing surface 4 d once enters the inside of the container 5 to perform a compression operation.
[0040]
Thereafter, as shown in FIG. 6 (e), the piston 4a is contracted, and the pushing plate 4c is retracted and stopped until the pushing surface 4d comes to the position of the vertical sliding door 5a of the container 5. At this time, the compressed plastic dust W is slightly restored as the pushing plate 4c retreats and generates a restoring reaction force on the pushing plate 4c. However, when the pushing plate 4c recedes, the reaction force against the pushing surface 4d is generated. Becomes smaller. FIG. 8A shows the pressure distribution of the plastic dust in the container 5 when compressed by the pushing plate 4c, and FIG. 8B shows the pressure distribution of the plastic dust in the container 5 when the pushing plate 4c is retracted. . As shown in FIG. 8B, the pressure of the plastic dust in the space formed when the pushing plate 4c is retracted is very small.
[0041]
Next, as shown in FIG. 6 (f), the elevating slide door 5a of the container 5 is closed along the pushing surface 4d by the container elevating slide door opening / closing mechanism 43a. At this time, as described above, the pressure of the plastic dust around the pushing surface 4d is small, and the restoring reaction force of the plastic dust generated on the pushing surface 4d is small. Can be closed. In addition, since the tip of the elevating slide door 5a has a tapered shape, it can be more easily closed. In addition, in order to reduce the frictional force between the pushing surface 4d and the vertical slide door 5a, an engineering plastic or the like having a self-lubricating property such as a nylon resin or a fluororesin and having excellent sliding properties is attached to the pushing surface 4d. Is also good.
[0042]
When the elevating slide door 5a of the container 5 is closed, as shown in FIG. 7 (g), the connection state of the container 5 with the compactor 4 is released, and again the receiving conveyor 9, the conveyor 10 with the elevating lifter, etc. It is stored in the three-dimensional storage shelf 7 by the stacker crane 8 via the transport mechanism. In addition, the lifting / lowering slide gate 6 of the compactor 4 is also closed by the compactor lifting / lowering slide gate opening / closing mechanism 41.
[0043]
Then, as shown in FIG. 7 (h), the plastic refuse W is received and stored in the hopper 3 and the compression chamber 5b even before the next container is transported by the operation of the elevating slide gate. The next cycle from a) is started.
[0044]
If the storage is performed only in the receiving hopper 3, the operation of the pushing plate 4c is completed in the state shown in FIG. 7 (g), and the next cycle operation is started. It is possible to configure the device without 6.
[0045]
As described above, in one embodiment of the present invention, the liftable slide door 5a provided at the entrance of the container 5 is opened and closed by the liftable slide door opening / closing mechanism 43a fixedly installed near the compactor 4, and When closing the up / down sliding door 5a of the container 5, the pushing surface 4d of the compactor 4 is once advanced to the inside of the container 5, then retracted to the position of the up / down sliding door 5a and stopped, and then moved along the pushing surface 4d. Since the sliding door 5a is closed by lifting, the structure of the compactor 4 and the container 5 is simple, the operation procedure is simple, and the opening area of the entrance of the container 5 can be increased. Garbage can be quickly pushed into the container 5 and compressed and stored. Therefore, efficient and reliable storage and transport of plastic waste can be performed.
[0046]
Further, since the container 5 has an opening / closing door composed of the elevating slide door 5a, it is suitable for compressing and storing plastic trash and the like. Further, since the lower door 5b is provided at a position opposed to the elevating slide door 5a, both the doors are opened at the time of discharging the waste, and the waste can be efficiently discharged by pushing the waste from one side and discharging the waste from the other. Become.
[0047]
Another embodiment of the present invention will be described below. This embodiment is a case where the present invention is applied to a transportation relay base for incinerated waste.
[0048]
FIG. 9 is an explanatory diagram of the transport relay base in this embodiment, and FIG. 10 is a processing flowchart in the transport relay base. FIG. 11 and FIG. 12 are views showing the structure of the container used at that time.
[0049]
As shown in FIGS. 9 and 10, at the transport transfer base, a refuse collection vehicle 51 that has collected incineration waste is received in the garbage collection vehicle reception area 2, and the collected incineration waste is put into the compactor 53 and the container 55. And the container 55 is temporarily stored in the container storage shelf 54. Thereafter, the temporarily stored container 55 is taken out of the container storage shelf 54, and transported to an incineration plant or a treatment plant by an intermediary transport vehicle 56 (large 10-ton vehicle).
[0050]
At this time, since one of the containers 55 is connected to the relay transport vehicle 56 for transportation, it is desirable that the opening and closing door for storing and discharging the incineration waste is provided only on one side of the container 55. Therefore, the container 55 in this embodiment has a structure as shown in FIGS. FIG. 11 is a side view, and FIG. 12 is a front view.
[0051]
As shown in FIGS. 11 and 12, the container 55 has an opening / closing door 55a on one side, and an arm lock hook 55i for connection to the relay transport vehicle 56 on the outer surface on the opposite side.
[0052]
The opening / closing door 55a is a rotating door 55b that opens downward, and the door surface of the rotating door 55b slides up and down to form a sliding door 55c.
[0053]
As shown in FIG. 11 (a) when the door is closed and FIG. 11 (b) when the door is open, the lower opening rotary door 55b is connected to the container main body by a hinge 55d at the upper part of the container main body, By rotating about the hinge 55d, the container can be opened and closed over the entire area of the container cross-sectional area. Then, it is fixed by a lock mechanism 55e including a lock arm 55f, a lock arm rotation shaft 55g and a stopper 55h so as not to open and close during storage in the container storage shelf 54 or during transportation by the relay carrier. I have.
[0054]
On the other hand, as shown in FIG. 12A, a state in which the door is closed is shown in FIG. 12A, and almost the entire door surface of the rotary door 55b is up and down, as shown in FIG. The container can be opened and closed almost in the area close to the entire surface of the container cross-sectional area. The lower part of the sliding door 55c is tapered so that it can be easily closed.
[0055]
When compressing and storing incineration waste in the container 55 having such an opening / closing door 55a, the lifting sliding door 55c is slid upward and opened by using the compactor 53 while the lower opening rotary door 55b is closed. Then, the incineration waste Y is compressed and stored in the container 55. At this time, the push-in surface of the compactor 53 is once advanced inside the container 55 and then retracted outside the container 55, and then the sliding door 55c is slid downward and closed. Thereby, the incineration waste Y can be quickly compressed and stored.
[0056]
Then, when discharging the incinerated waste housed in a compressed state from the container 55 in an incineration plant or the like, the lower opening rotary door 55b is opened in a state where the elevating slide door 55c is closed, and the compressed incinerated waste is compressed and housed in the container 55. Discharge incinerated waste Y. Thereby, the incineration waste Y can be quickly discharged.
[0057]
As described above, in this embodiment, when the incinerated waste is compressed and stored in the container 55 by using the container 55 having the opening / closing door 55a which also serves as the lower opening rotating door 55b and the elevating sliding door 55c, The sliding door 55c is used, and when the incinerated waste is discharged from the container 55, the elevating sliding door 55c is used, so that the incineration waste transport base is also efficiently stored and transported. And discharge can be performed.
[0058]
In addition, this embodiment is intended for a transportation relay base for incinerated garbage, but in a resource separation facility for recycling garbage, compression storage into a container and discharge from the container are performed without using the same opening and closing door. Needless to say, it is also effective in the case where the arrangement is not allowed.
[0059]
【The invention's effect】
The method and apparatus for compressing and storing waste of the present invention, when compressing and storing waste in a container, open and close a door provided at the container entrance by a door opening and closing mechanism installed outside the container. When closing the opening / closing door at the container entrance, the pushing surface of the push plate of the compression device is once advanced to the inside of the container, then retracted to the position of the opening / closing door and stopped, and then the opening / closing door is closed along the pushing surface. As a result, a complicated structure is not required for the compactor or the container, and the opening area of the container entrance can be increased, so that the waste can be efficiently stored and transported with high reliability. .
[0060]
As a result, it is possible to construct a waste separation / recycling plant and the like even on land with a limited site area, such as an urban area near the discharge area.
[0061]
In addition, the container of the present invention has an opening / closing door composed of a sliding door, so that it is suitable for compressing and housing plastic dust and the like, and has a second opening / closing door at a position facing the sliding door, so that the By opening both doors at the time of discharge, pushing waste from one side and discharging the waste from the other, efficient waste can be discharged.
[0062]
Furthermore, since the container of the present invention has an opening / closing door which also serves as a rotary door and a sliding door, efficient compression storage, storage and discharge of incinerated refuse and the like are possible.
[Brief description of the drawings]
FIG. 1 is a side view of a method for storing and compressing plastic waste according to an embodiment of the present invention, which is incorporated in a sorting and recycling facility.
FIG. 2 is a front view of a method for storing and compressing plastic waste according to an embodiment of the present invention, which is incorporated in a sorting and recycling facility.
FIG. 3 is a structural diagram of a container used in an embodiment of the present invention.
FIG. 4 is a configuration diagram of a control device according to an embodiment of the present invention.
FIG. 5 is an operation process diagram when compressed and stored in a container in one embodiment of the present invention.
FIG. 6 is an operation process diagram when compressed and stored in a container in one embodiment of the present invention.
FIG. 7 is an operation process diagram when compressed and stored in a container according to an embodiment of the present invention.
FIG. 8 is a pressure distribution diagram of plastic waste in a container.
FIG. 9 is an explanatory diagram of another embodiment of the present invention.
FIG. 10 is a processing flowchart in another embodiment of the present invention.
FIG. 11 is a side view of a container used in another embodiment of the present invention.
FIG. 12 is a front view of a container used in another embodiment of the present invention.
[Explanation of symbols]
1 garbage truck
2 platform
3 Receiving hopper
4 compactor
4a piston
4b compression chamber
4c Press-in board
4d press surface
5 containers
5a Elevating slide door
5b Bottom opening door
5c Lock mechanism
5d lock arm
5e Lock arm rotation axis
5f Door rotation axis
6 Elevating slide gate
7 Three-dimensional storage shelves
8 Stacker crane
9 Receiving conveyor
10 Conveyor with lifter
21 Unloading conveyor
22 Discharge piston
23 Supply hopper
41 Compactor lifting slide gate opening and closing mechanism
42 Container lock / release mechanism
43a, 43b Elevating slide door opening and closing mechanism
44 Piston drive mechanism
45 Piston hydraulic pressure detection sensor
46 Bottom opening door lock / release mechanism
47 Bottom opening door opening / closing mechanism
51 Garbage truck
52 garbage truck acceptance
53 compactor
54 Container Storage Shelf
55 containers
55a door
55b Bottom opening revolving door
55c lifting slide door
55d hinge
55e lock mechanism
55f lock arm
55g lock arm rotation shaft
55h clasp
55i clasp
55i arm lock hook
56 Relay transport vehicle
W plastic waste
Y Incineration waste

Claims (7)

A method for compressing and storing waste, in which a waste is compressed and stored by a compression device having a pushing plate inside a container having an opening / closing door at an entrance portion,
An arranging step of arranging the container with respect to the compressing device such that an inlet portion of the container and a pressing surface of a pressing plate of the compressing device face each other,
A door opening step of opening the opening / closing door at the container entrance by a door opening / closing mechanism installed outside the container;
A compressing and accommodating step of compressing and accommodating waste supplied in front of a pushing surface of the pushing plate by advancing the pushing plate toward the inside of the container;
Having the door closing step of closing the opening / closing door of the entrance portion of the container by the door opening / closing mechanism after the pushing surface of the pushing plate is once advanced inside the container and then retracted outside the container. Characterized by the method of compressing and storing waste. 2. The method according to claim 1, wherein the waste is plastic waste. A waste compression storage device for storing waste in a container having an opening / closing door at an entrance portion,
A pushing plate having a pushing surface opposed to an entrance of the container, wherein waste supplied in front of the pushing plate is advanced by the pushing surface to be compressed and accommodated in the container; A compression device;
A waste supply mechanism for supplying waste in front of the pushing plate;
A mechanism installed outside the container to open and close an opening / closing door at an entrance of the container, wherein the push plate once advanced inside the container is retracted outside the container, and then the entrance of the container is opened. And a door opening / closing mechanism for closing an opening / closing door of the section. The waste storage apparatus according to claim 3, wherein the opening / closing door at the entrance of the container is a sliding door. 5. The compression storage device for waste according to claim 3, wherein the waste is plastic waste. A container comprising: a first opening / closing door formed of a sliding door; and a second opening / closing door provided to face the first opening / closing door. A container characterized by being a revolving door and having an opening / closing door that also becomes a sliding door by sliding a part of the door surface.

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