JP6511168B2 - Separator for separating paper and plastic film from paper container - Google Patents

Description

  This invention separates a so-called milk carton into which a liquid beverage such as milk is filled into a paper component mainly composed of pulp fiber which is a base material and a plastic film which is a laminate material, and recovers each paper liquid The present invention relates to an apparatus for separating paper from a container and a plastic film.

  In a paper mill, this kind of milk carton is separated into a paper fraction mainly composed of pulp fibers and a plastic film, and the paper fraction is utilized as a recycled resource as a waste paper raw material. On the other hand, plastic films are outsourced to processing companies for processing costs. Among these plastic films, those having relatively high purity and capable of being used as raw materials of RPF (Refuse Paper & Plastic Fuel) (solid fuel) are used for production of RPF. On the other hand, it is incinerated if it is not suitable for RPF's raw material, it contains paper with a large amount of water, etc., or if it contains metal or other impurities such as stapler needles and clips. doing. If the purity is higher than that of the RPF raw material, it is sold to a recovery trader, for example, as a recycled plastic raw material.

  Incineration of plastic films is not preferable in terms of effective use of resources and environmental measures, and it is preferable that the plastic films be recovered so as to be effectively used as a raw material of RPF as much as possible. Paper mills consign processing of plastic separated from milk cartons to a recovery company, but it is the fact that the process is outsourced to the recovery company at the expense of cost, and RPF is used to collect plastic film When a large amount of plastic film to be used as the raw material is contained, the burden cost is low, and when much impurities are contained, the burden cost is high because the material is incinerated.

  When outsourcing plastic film processing separated from milk cartons, high quality RPF with stable energy efficiency if the plastic film is mixed with high moisture content pulp fibers and other paper fractions It may be classified as a plastic film containing impurities, and the processing unit price may increase. In order to reduce the processing unit cost, it is desirable to separate and remove the paper as much as possible, and to further dry it to improve the purity of the plastic film.

  By the way, according to Patent Document 1, laminated waste paper having paper attached to the back surface is cut, and the cut laminated waste paper and water are mixed and stirred to separate the paper from the back surface of the laminated waste paper, and after separation, the laminated film Proposed a method for treating laminated waste paper that separates the paper into paper and paper so that at least the laminated film can be reused as an industrial material, and it is possible to reuse the laminated film conventionally regarded as waste as an industrial material ing.

JP-A-9-38629

  In the method of separating laminated waste paper according to the invention disclosed in Patent Document 1, the removal rate of paper is still low, and therefore the amount of water is large, and the purity of the plastic film when processing is outsourced to a recovery company is sufficiently high. And may be classified as a plastic film containing impurities.

  Therefore, according to the present invention, when the collected milk carton is separated into paper and plastic film, the paper fraction of the paper liquid container is improved to improve the recovery rate of the paper and further improve the purity of the plastic film. The purpose is to provide a separation device of water and plastic film.

  As a technical means for achieving the above object, the separation device for the paper portion and the plastic film of the paper liquid container according to the present invention is formed by laminating the plastic film on a sheet consisting mainly of pulp fibers. Separation device for separating the paper portion and the plastic film of the paper container made of paper, the paper liquid container being crushed into a plastic film to be treated of an appropriate size, and the paper fraction of the plastic film to be treated And a device for separating the paper film and the plastic film from the paper liquid container for separating the paper film and the plastic film, supplying moisture to the crushed plastic film to a state where the water content of the paper is 70% by weight or more Impacting a treated plastic film having a moisture supply device and the moisture-containing paper component, And a minute and paper separator device for separating the plastic film is characterized in that separate the paper fraction and a plastic film is recovered, respectively.

  The collected paper liquid container such as a milk carton is cut, crushed, and formed into a plastic film to be treated, and then supplied to the water supply device. In the water supply device, the water content of the paper constituting the plastic film to be treated is adjusted to 70% by weight or more by dispersing water, etc., and the water content is supplied to the paper separation device. In the paper separation apparatus, a shock is applied by causing a plate material, a bar material, and other appropriate members to collide with the plastic film to be treated. Since the paper portion of the plastic film to be treated contains an appropriate amount of water, the paper portion is separated from the plastic film by this impact, and the paper portion and the plastic film can be separated, The paper and the plastic film are collected respectively. In addition, it is preferable to make it 70 weight% or more as a water | moisture content for making a paper part fully detach | leave from a plastic film, and it is more preferable to set it as 80 weight% or more.

  In addition, when the plastic film to be treated is supplied to the water supply device, the conventional separation process of separating the milk carton into paper and plastic film is carried out, and the separation is not sufficient even after the process. That is, supplying the plastic film in a state in which the paper is adhered can more reliably separate the paper as compared with the case where the water supply device is immediately supplied without passing through the conventional separation process. Preferred. Also, if the plastic film in the state of being cut and crushed in the conventional separation process is too large to be supplied to the paper separation device, it is further cut and broken into smaller pieces prior to being supplied to the water supply device. I need to This is because when the plastic film to be treated is large, it is difficult to give an impact over the entire area of the plastic film to be treated. Therefore, if it is cut and crushed to a size that can give a sufficient impact in the paper separation device via the conventional separation process, it is further added prior to the supply to the water supply device. It is not necessary to go through the above-described cutting and crushing process to reduce the size.

  After the plastic film is recovered and dried, the process may be outsourced to a plastic film recovery company.

  In the separating device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 2, the paper separating device may be a cylindrical separation container having a horizontal axis as a central axis, and the separation container in the separation container. A rotary shaft rotating about a horizontal axis, a plurality of plates embedded in the rotary shaft at appropriate intervals in the axial direction and circumferential direction of the rotary shaft, and the tip of the plate are faced The screen comprises a cylindrical perforated plate centered on the central axis of the separation container, and the plastic film to be treated supplied into the separation container is agitated by the rotation of the plate by the rotation of the rotation shaft. Shock is applied to the plastic film to be treated to separate the paper from the plastic to be treated, and the broken paper is allowed to pass through the through-hole of the screen, Is recovered paper fraction adhering to the outer peripheral surface of the falling or screen from down, is characterized in that the paper fraction is separated to recover the treated plastic film remaining inside the screen.

  The to-be-processed plastic film supplied to the paper separation device is agitated by the rotation of the plate in the separation container. At this time, the plastic film to be treated is moved to the inner wall side of the separation container by centrifugal force according to the swinging speed of the plate, and the plate is struck by the plate and an impact is applied. Minutes leave. Furthermore, when the paper and the plastic film move, they collide with the screen. At this time, the paper passes through the through holes of the screen and the plastic film does not pass through. The diameter of the through hole is set to prevent passage of the plastic film, or the size of the cut and crushed plastic film is set not to pass through the through hole.

  The paper that has passed through the through holes of the screen falls from the screen and adheres to the outer peripheral surface of the screen. The paper adhering to the outer peripheral surface of the screen is pushed out and dropped by the paper which is going to pass through the through hole. These pieces of paper are collected from the bottom of the separation container.

  On the other hand, a plastic film having a small bulk specific gravity is pressed against the screen and remains on the inside of the screen under the wind pressure generated by the swing of the plate. If these plastic films are recovered, for example, high-purity plastic films suitable for raw materials of recycled plastics can be recovered.

  Further, since the paper content falls downward from the outer peripheral surface of the screen, the paper content can be discharged continuously by providing a discharge port for discharging the paper content at the lower part of the separation container. Furthermore, if the discharge port for discharging the plastic film from the inside of the screen to the outside of the separation container is provided, the plastic film can be discharged continuously.

  The size of the plastic film to be treated is such that it can be reliably stirred by the pivoting of the plate to receive a sufficient impact from the plate. In addition, it is as above-mentioned that it is set as the magnitude | size which does not pass through the through-hole of the said screen. Further, the appropriate spacing is the distance between the adjacent plates in each of the circumferential direction and the axial direction of the rotation axis with respect to the arrangement of the plates, and the plastic film to be treated struck by the plates is the last step. The number of plates is determined so that the paper portion of the plastic film to be treated is reliably separated from the plastic film when the plate is struck with the plate, and the spacing is made accordingly.

  The separating device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 3 provides a scraper which travels along the outer peripheral surface of the screen while rubbing the outer peripheral surface, and is separated It is characterized in that the scraper passes a portion of the paper that has passed through the through holes of the screen and adhered to the outer peripheral surface of the screen.

  A scraper is provided to scrape off the paper adhered to the outer peripheral surface of the screen. Since the paper scraped off by the scraper falls to the lower part of the separation container, the dropped paper is collected.

  The scraper may be, for example, a plate-like blade of an appropriate length which is extended in the axial direction of the screen, one end edge in the width direction of the blade is disposed close to the outer peripheral surface of the screen, and the screen is It is possible to scrape off the paper adhered to the outer peripheral surface at this one end by turning. However, since it is necessary to provide a support member not only at both ends but also in the middle as a support structure of a large weight blade, the support structure may be enlarged or complicated. Therefore, the scraper is moved along the outer peripheral surface while rubbing the outer peripheral surface of the screen.

  The separating device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 4 is characterized in that the screen is supported so as to be pivotable about the rotation axis.

  By rotating the screen, the position at which the plastic film to be treated collides with the screen is changed.

  The separation device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 5 is characterized in that the water supply device comprises a treatment tank for sprinkling water on the plastic film to be treated.

  As said water | moisture-content supply apparatus for providing a water | moisture content to the paper part of a to-be-processed plastic film, a to-be-processed plastic film is accommodated in a processing tank, and it sprinkles. The plastic film to be treated is watered in this treatment tank to be adjusted to a water content of 70% by weight or more and provided to the paper separation device.

  Further, in the separating device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 6, the water supply device comprises a water spray nozzle for sprinkling the plastic film to be treated supplied into the separation container. It is characterized by

  The water supply device is a water sprinkling nozzle provided in a separation container of the paper separation device, and water is provided by sprinkling the plastic film to be treated supplied in the separation container. The

  Further, in the separating device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 7, the water supply device is supplied into a processing tank for sprinkling the plastic film to be treated, and the inside of the separation container. And a water spray nozzle for watering the plastic film to be treated.

  The treatment tank and the water spray nozzle are provided as a water supply device. If the water content of the paper is 70% by weight or more, it is fine to provide either one of the treatment tank and the water spray nozzle, but if a sufficient amount of water can not be obtained, provide both of them. The In addition, it is a case where both of these are provided, and when a desired moisture content can be obtained, either one can be operated, and when insufficient, both can be operated. Further, it is preferable that the amount of water sprinkling in the treatment tank and the amount of water sprinkling in the water sprinkling nozzle be different, since the amount of water sprinkling can be finely adjusted.

  The separating device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 8 conveys the plastic film to be treated supplied into the separation container to a position where it is agitated by the plate. Characterized in that it comprises means.

  Although the plastic film to be treated which has been made to absorb water in the paper portion is fed from the feeding port arranged in the separation container, a plate which gives impact to the plastic film to be treated is placed. The area is transported by the transport means.

  Further, in the separating device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 9, the transport means is inclined at an angle in the width direction of the plate with respect to the axial direction of the rotating shaft. It is characterized in that it is formed by a row plate, and the plastic film to be treated is pushed to a stirring area by the plate by turning of the oblique plate.

  The conveying means is a skewed plate in which the mounting angle of the plate is changed, and the plastic film supplied to the separation container is pushed to a region where the plate for shock application is disposed. is there. In addition, as a conveying means, for example, a structure in which a plastic film to be treated introduced by a blower is blown to the plate area by the wind pressure, or other structure can be used.

  According to the separation device for the paper portion and the plastic film of the paper liquid container according to the present invention, since the water content of the paper portion of the plastic film to be treated is increased and supplied to the paper separation device, the paper separation device Thus, the paper can be reliably separated from the plastic film to be treated, and the separated paper and plastic film can be reliably collected. The separated and collected paper is used as waste paper material. On the other hand, since almost no paper content adheres to the plastic film, it can be used as a raw material of RPF because it has a relatively high purity, and the plastic film to be disposed of for disposal such as incineration can be reduced. Thus, the cost of contracting plastic film processing is reduced.

  Further, according to the separating device for separating the paper and the plastic film of the paper-made liquid container of the second aspect of the present invention, the paper can be reliably separated from the plastic film to be processed by the paper separating device having a simple structure. it can. In addition, the separated plastic film is high in purity and can be used as a raw material of recycled plastic by itself, so that it can be expected to be sold at a high price. Furthermore, since the drying is promoted by the wind pressure, the moisture content of the paper remaining without being separated from the plastic film is reduced, and it is possible to use it as a raw material of RPF. It can be done.

  Further, according to the separating device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 3, the paper portion which has passed through the through hole of the screen can be surely dropped from the outer peripheral surface of the screen The paper collection efficiency can be improved.

  Further, according to the separating device for separating the paper portion of the paper liquid container and the plastic film from the invention according to the fourth aspect of the present invention, the position of collision with the screen of the plastic film to be treated and the paper portion is changed. Equalization can prevent clogging of the through holes as much as possible.

  Further, since the position of the outer peripheral surface of the screen where the scraper rubs is changed, the paper can be scraped off over the entire outer peripheral surface of the screen.

  Further, according to the separation device for the paper portion and the plastic film of the paper-made liquid container according to the invention of claim 5 or 6, the water content of the paper portion of the plastic film to be treated is surely desired with a simple structure. It can be raised to 70% by weight.

  Further, according to the separating device for separating the paper portion of the paper liquid container and the plastic film according to the invention of claim 7, the water content of the paper portion of the plastic film to be treated can be adjusted to a desired size, and the plastic film to be treated The amount of water can be adjusted more simply by using one or both of the treatment tank and the water spray nozzle in accordance with the amount of treatment of the above. In particular, by making the amount of water sprinkling in the treatment tank different from the amount of water sprinkling by the water sprinkling nozzle, the adjustment of the total amount of water sprinkling can be easily and finely adjusted, and the treated amount of the plastic film to be treated, the milk carton, etc. It is possible to respond quickly to differences in the laminate structure of

  Further, according to the separating device for separating the paper portion of the paper liquid container and the plastic film from the invention according to the eighth aspect, it is possible to stir that the plate to be treated is securely planted on the plastic film to be treated supplied into the separation container. Can be transported by the transport means to the area of the plate, and can be reliably used for the plate pivoting. By conveying by the conveying means, the plastic film to be treated can be conveyed to the area where it can be smoothly stirred without stagnating, so that the plastic film to be treated can be continuously processed. Since the sheet is transported smoothly, the separation process of the paper portion of the plastic film to be treated can be surely performed.

  Further, according to the separating device for separating the paper portion of the paper liquid container and the plastic film from the invention according to the ninth aspect, since the oblique plate which is the conveying means is constituted by the same member as the member used for the plate Can be made common, and the manufacturing cost of this separation device can be reduced. In addition, by changing the angle in the width direction with respect to the axial direction of the rotating shaft, it is possible to easily adjust the transport efficiency to an optimum one.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view for explaining the general configuration of a separation device for paper and plastic film of a paper-made liquid container according to the present invention, and is a cross-sectional view of the paper separation device taken along a plane along the axial direction. FIG. 2 is a cross-sectional view of the paper separating device shown in FIG.

  Hereinafter, based on the illustrated preferred embodiment, the separating apparatus for separating the paper portion of the paper liquid container and the plastic film according to the present invention will be specifically described.

  FIG. 1 shows the paper separation device 1 of the separation device of paper and plastic film of a liquid container made of paper, and the separation device mainly comprises the paper separation device 1 and the processing tank 4 which is a water supply device. It is done. A to-be-processed plastic film 2 composed of a plastic film from which a paper fraction mainly composed of pulp fibers is to be separated is fed from the feeding port 11 to the paper fraction separating device 1. The processed plastic film 2 is supplied to the processing tank 4 after the paper liquid container M such as the collected milk carton is cut and crushed in the cutting and crushing step 3. In the processing tank 4, water is sprayed to adjust the water content to 70% by weight or more, and then the water is introduced from the inlet 11. In addition, it is preferable to set the water content to 80% by weight or more because the action described later can be performed better.

  In the paper separation device 1, a cylindrical screen 13 formed of a porous plate is accommodated inside a cylindrical separation container 12 whose axis is in the horizontal direction, and a plurality of plates 14 are accommodated inside the screen 13. ing. The plate 14 is implanted on the outer peripheral surface of the rotary shaft 15 with the axial direction of the rotary shaft 15 rotatable around the axis of the separation container 12 as the width direction. As shown in FIG. 1, the plates 14 are arranged such that the mounting angles in the circumferential direction of the rotating shaft 15 are in an alternate positional relationship along the axial direction. Further, the skewed plate 14a as a conveying means located below the insertion port 11 is attached to the rotary shaft 15 at an angle of approximately 45 ° with respect to the direction of the rotary shaft 15 in the width direction thereof. The processed plastic film 2 is pushed to the side where the plate 14 is disposed. In addition, any interval regarding the attachment position of the axial direction of the plate 14 and the circumferential direction is set so that the effect | action mentioned later may be performed favorably. Further, the screen 13 is disposed facing the tip of the plate 14.

  The diameter and the pitch of the through holes of the porous plate forming the screen 13 are supposed to perform well the operation described later. On the outer peripheral surface of the screen 13, a plurality of scrapers 16 slide in the axial direction of the rotating shaft 15 to rub the outer peripheral surface of the screen 13. That is, each of the scrapers 16 is slidable in the axial direction along the guide shaft 16 a in a direction parallel to the axis of the rotation shaft 15. The sliding is performed by drive means 16b attached to the guide shaft 16a in correspondence with each scraper 16. Further, the screen 13 is attached to a rotary disc 17 which is pivoted about the rotary shaft 15. The rotary disc 17 transmits output rotation of a drive motor or the like (not shown) through a transmission. It is pivoted by For this reason, the screen 13 is pivoted about the rotation axis 15.

  Below the inlet 11 of the separation container 12, a water spray nozzle 18 is provided as a water supply device, and water is sprayed from the water spray nozzle 18 toward the inside of the separation container 12. Further, as shown in FIG. 2, a plastic discharge port 21 communicating with the inside of the separation container 12 is provided at the end opposite to the input port 11. Further, the lower part of the separation container 12 is an inclined wall, and the paper outlet 22 is provided at the lowermost part of the inclined wall. As the water supply device, either one or both of the treatment tank 4 and the water spray nozzle 18 can be installed.

  The operation of the separation device for the paper and the plastic film of the paper liquid container configured as described above will be described below.

  The collected paper liquid container M is subjected to the cutting and crushing step 3 and is crushed to an appropriate size to be formed on the plastic film 2 to be treated. The plastic film 2 to be treated is supplied to the treatment tank 4 and sprayed to adjust the water content to 70% by weight or more. The water content at this time is more preferably 80% by weight or more.

  The to-be-processed plastic film 2 whose moisture content is 70% by weight or more is introduced from the processing tank 4 through the inlet 11 of the paper separation device 1. The supplied plastic film 2 further contains water in the shower water sprayed from the water spray nozzle 18. In addition, when water contained can be made 70 wt% or more by sprinkling the plastic film 2 to be treated in a crushed state from the water spray nozzle 18, the processing tank 4 needs to be provided. There is no Alternatively, when the water content can be 70% by weight or more in the treatment tank 4, the water spray at the water spray nozzle 18 is unnecessary. If both the processing tank 4 and the water spray nozzle 18 which are the water supply devices are provided, the processing amount can be obtained by using one or both of the processing amount of the plastic film to be processed, the amount of paper, etc. Can be easily coped with, and the desired amount of water can be reliably secured.

  The introduced plastic film 2 to be treated drops by watering and falls, and is supplied to the oblique plate 14 a, and is pushed by the oblique plate 14 a by the rotation of the rotating shaft 15 and stirred by the plate 14. It is fed to the area. The plate 14 is pivoted by the rotation of the rotary shaft 15, and by being pivoted at an appropriate speed, the plastic film 2 to be treated is blown by the wind pressure by the pivot of the plate 14 and blown away inside the separation container 12 to the outer peripheral side. , Be struck on the plate 14. Since the plastic film 2 to be treated has a high moisture content, the paper portion is peeled off from the plastic film by a striking impact, separated, and further broken into fine particles. Furthermore, when the paper and the plastic film are blown to the outer peripheral side of the separation container 12 by wind pressure, they collide with the screen 13. At this time, the paper portion is pushed out to the outer peripheral side of the screen 13 through the through holes of the screen 13 by the impact of the collision. On the other hand, since the plastic film is not broken even if struck by the plate 14, it does not pass through the through holes of the screen 13, and the bulk specific gravity is small. It will be.

  It is necessary that the pulp fibers, which are the main components of the paper, be loosened so that the paper can be sized to pass through the through holes of the screen 13. The water content of the paper is preferably 70% by weight or more, and more preferably 80% by weight or more, in order to easily dissolve the pulp fibers. However, when the amount of water is too large, there is a possibility that the stirring and scattering by the plate 14 may not be smoothly performed.

  The plastic film floating in the screen 13 is gradually transported to the downstream side under the wind pressure caused by the swing of the plate 14. In addition, it adjusts by changing the shape of the said plate 14, an attachment angle, etc. so that this movement may be performed smoothly. The plastic film conveyed to the downstream side is discharged from the plastic discharge port 21 by the swirling air generated by the swirling of the plate 14 and is collected. The recovered plastic film is sufficiently separated in paper and has high purity.

  On the other hand, the paper that has passed through the through holes of the screen 13 is pushed out of the through holes and falls along the outer peripheral surface of the screen 13 or adheres to the outer peripheral surface. Since the scraper 16 moves in the axial direction of the rotary shaft 15 while rubbing the outer peripheral surface of the screen 13, the paper adhered to the outer peripheral surface is scraped off and dropped by the scraper 16. Then, the dropped paper is discharged from the paper discharge port 22 to the outside of the separation container 12 and collected. In addition, since the screen 13 is turned, the scraper 16 scrapes off the paper by scraping the entire area of the outer peripheral surface of the screen 13, and the paper can be efficiently recovered.

  The recovered plastic film is used as an RPF raw material etc., and the recovered paper is used as an used paper raw material etc.

  According to the separation device of the paper portion and the plastic film of the paper liquid container according to the present invention, since the plastic film and the paper portion can be separated easily and reliably, high-purity plastic can be recovered, and the plastic is recycled Contribute to the maintenance of a good environment.

1 Paper separation device 2 Plastic film to be treated 3 Cutting and crushing process 4 Processing tank (water supply device)
11 inlet
12 separation containers
13 screen
14 plates
14a Slanting plate (conveying means)
15 rotation axis
16 Scraper
18 Sprinkler nozzle (water supply device)
21 plastic outlet
22 paper outlet

Claims (9)

A separating apparatus for separating the paper portion of a paper-made liquid container formed by laminating a plastic film on a sheet consisting mainly of pulp fibers and the plastic film, the paper-made liquid container having a suitable size In a separation device for the paper film of a paper liquid container and the plastic film, which is broken into the plastic film to be treated and the paper fraction of the plastic film to be treated and the plastic film are separated,
A moisture supply device for supplying moisture to the crushed plastic film to a state where the moisture content of the paper is 70% by weight or more;
Providing a paper separation device for separating the paper and the plastic film by applying an impact to the plastic film to be treated having the paper containing water;
What is claimed is: 1. A separation device for paper and plastic film of a paper liquid container, wherein the separated paper and plastic film are respectively recovered. The paper separating device is
A cylindrical separation vessel whose central axis is in the horizontal direction,
A rotating shaft that rotates around a horizontal axis in the separation container;
A plurality of plates embedded in the rotary shaft at appropriate intervals in the axial direction and the circumferential direction of the rotary shaft;
It consists of a screen which consists of a cylindrical perforated plate centering on the central axis of the separation container at the position where the tip of the plate faces,
The plastic film to be treated supplied into the separation container is agitated by the rotation of the plate by the rotation of the rotating shaft, and an impact is applied to the plastic film to be treated to separate the paper from the plastic to be treated. Let go of
The released paper is passed through the through-hole of the screen, and the paper dropped from the screen or collected on the outer peripheral surface of the screen is collected, and the paper is released and remains on the inside of the screen The apparatus for separating paper from a paper liquid container and plastic film according to claim 1, wherein the treated plastic film is recovered. A scraper traveling along the outer peripheral surface of the screen while rubbing the outer peripheral surface is provided.
The paper and plastic film of a paper-made liquid container according to claim 2, characterized in that the paper separated and passed through the through holes of the screen and scraped off the paper adhering to the outer peripheral surface of the screen with the scraper. And separation device.   The separation device for separating the paper portion of the paper liquid container and the plastic film according to claim 2 or 3, wherein the screen is rotatably supported about the rotation axis.   The said water | moisture-content supply apparatus consists of a processing tank which water-sprays the said to-be-processed plastic film, Separation of the paper fraction and plastic film of the paper-made liquid container in any one of Claim 1- Claim 4 characterized by the above-mentioned apparatus.   The said water supply apparatus consists of a watering nozzle which waters the to-be-processed plastic film supplied in the said separation container, The paper of the paper-made liquid container in any one of Claim 1 to 4 characterized by the above-mentioned Separation device for the minute and plastic film.   The water supply apparatus comprises a treatment tank for sprinkling the plastic film to be treated, and a water spray nozzle for sprinkling the plastic film to be treated supplied into the separation container. The separation device of the paper fraction of the paper liquid container and the plastic film as described in any of the above.   The paper according to any one of claims 2 to 7, further comprising a conveying means for conveying the plastic film to be treated supplied into the separation container to a position where it is agitated by the plate. A device for separating paper and plastic film from a liquid container.   The conveying means forms a skewed plate in which the angle in the width direction of the plate is inclined with respect to the axial direction of the rotation axis, and the plastic plate is pushed to the stirring area by the plate by the swirling of the skewed plate. 9. The apparatus for separating paper from a paper liquid container according to claim 8, characterized in that the plastic film is moved.