CN115228900A - Paper-plastic separation system and paper-plastic separation method for waste paper treatment - Google Patents
Paper-plastic separation system and paper-plastic separation method for waste paper treatment Download PDFInfo
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- CN115228900A CN115228900A CN202210877113.4A CN202210877113A CN115228900A CN 115228900 A CN115228900 A CN 115228900A CN 202210877113 A CN202210877113 A CN 202210877113A CN 115228900 A CN115228900 A CN 115228900A
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- paper
- plastic
- grinding
- stripping machine
- waste
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- 239000004033 plastic Substances 0.000 title claims abstract description 151
- 229920003023 plastic Polymers 0.000 title claims abstract description 151
- 238000000926 separation method Methods 0.000 title claims abstract description 57
- 239000010893 paper waste Substances 0.000 title claims abstract description 52
- 238000000227 grinding Methods 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000010865 sewage Substances 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000004537 pulping Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 organic matters Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/35—Shredding, crushing or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/85—Paper; Wood; Fabrics, e.g. cloths
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a paper-plastic separation system and a paper-plastic separation method for waste paper treatment, wherein the paper-plastic separation system comprises a paper-plastic grinding and stripping machine, a spray nozzle is arranged on the paper-plastic grinding and stripping machine, a fixed disc and a movable roller which is movably arranged relative to the fixed disc are arranged in the paper-plastic grinding and stripping machine, a crushed waste paper material is placed in the paper-plastic grinding and stripping machine, the spray nozzle sprays water on the waste paper material of the paper-plastic grinding and stripping machine, and the waste paper material strips plastics adhered to the waste paper material through the extrusion and push-rolling action between the movable roller and the fixed disc. The invention can greatly save water, does not produce sewage in the production process, can effectively reduce the investment and the operating cost of matched water treatment facilities, greatly improves the paper-plastic separation efficiency and avoids the fire hazard.
Description
Technical Field
The invention relates to the technical field of waste paper recycling and clean dry pulp material production by waste paper in the papermaking industry, in particular to a paper-plastic separation system and a paper-plastic separation method for waste paper treatment.
Background
At present, the waste paper pulping technology comprises wet pulping and traditional complete dry pulping, and in the waste paper wet pulping and plastic removal, a large amount of water is needed, and a large amount of sewage containing solid particles, cellulose, organic matters, plastics and other pollutants is generated, so that the problems of large water consumption, serious water pollution, large water treatment investment, poor paper-plastic separation effect, high impurity content of paper pulp, poor product quality, low grade of finished paper and the like exist; while the traditional complete dry pulping mostly adopts multi-stage crushing or crushing technology and method, in the crushing or crushing process, because the cutter of the crusher or the crusher runs at high speed, the situations of waste paper combustion and the like are easily caused, thereby having fire hazard, and the traditional complete dry pulping method has the defects of high difficulty in separating plastics from dry pulp, poor separation effect and high impurity content of paper pulp,
disclosure of Invention
The invention aims to provide a paper-plastic separation system and a paper-plastic separation method for waste paper treatment, which can greatly save water, can not generate sewage in the production process, can effectively reduce the investment and the operating cost of matched water treatment facilities, greatly improve the paper-plastic separation efficiency, and avoid the fire hazard.
In order to achieve one of the above objects, an embodiment of the present invention provides a paper-plastic separation system for waste paper treatment, wherein the paper-plastic separation system includes a paper-plastic decorticator, the paper-plastic decorticator is provided with a spray nozzle, the paper-plastic decorticator is provided with a fixed disc and a movable roller movably arranged relative to the fixed disc, the broken waste paper material is placed in the paper-plastic decorticator, the spray nozzle sprays water on the waste paper material of the paper-plastic decorticator, and the waste paper material peels off plastic adhered to the waste paper material through the squeezing and pushing actions between the movable roller and the fixed disc.
As a further improvement of an embodiment of the present invention, the paper-plastic separation system further includes a crusher and a conveyor provided between the crusher and the paper-plastic grinding and stripping machine, the crusher crushes the used paper into crushed paper with a particle size of 40mm to 50mm, and the conveyor conveys the crushed paper to the paper-plastic grinding and stripping machine.
As a further improvement of an embodiment of the invention, the paper-plastic separation system further comprises a spraying unit, and the spraying unit uniformly sprays water into the paper-plastic grinding and stripping machine through a spraying nozzle to soften the paper shreds to be ground and stripped.
As a further improvement of an embodiment of the invention, the paper-plastic separation system further comprises a cyclone separator communicated with the paper-plastic grinding and stripping machine, the mixed material of the separated paper and plastic treated by the paper-plastic grinding and stripping machine enters the cyclone separator, and the separation of the paper and plastic is realized by utilizing the difference of densities of the paper and plastic after absorbing water.
As a further improvement of an embodiment of the present invention, the paper-plastic separation system further includes a screw conveyor disposed between the paper-plastic grinding and stripping machine and the cyclone, and the mixed material of the separated paper and plastic is conveyed to the cyclone by the screw conveyor.
As a further improvement of an embodiment of the invention, the paper-plastic separation system further comprises a negative pressure air separator connected with the cyclone separator, a guide plate is installed in the cyclone separator, paper falls to the bottom of the cyclone separator due to gravity, and plastic is sucked into the negative pressure separator upwards along the guide plate in the cyclone separator under the action of the negative pressure separator.
As a further improvement of an embodiment of the present invention, the paper-plastic separation system further includes a discharger in communication with the negative pressure separator through a pipe, through which the plastic is discharged.
In order to achieve one of the above objects, an embodiment of the present invention further provides a paper-plastic separation method for waste paper treatment, wherein the paper-plastic separation method comprises the following steps:
a. providing a paper-plastic grinding and stripping machine, and placing the crushed waste paper material into the paper-plastic grinding and stripping machine;
b. the spraying nozzle sprays water on the waste paper material of the paper plastic grinding and stripping machine;
c. the paper-plastic grinding and stripping machine is internally provided with a fixed disc and a movable roller which is movably arranged relative to the fixed disc, and the waste paper materials are stripped from plastics adhered to the waste paper materials through the extrusion and push-roller action between the movable roller and the fixed disc.
As a further improvement of an embodiment of the invention, the paper-plastic separation method further provides a spraying unit, and the spraying unit uniformly sprays water into the paper-plastic grinding and stripping machine through a spraying nozzle to soften the shredded paper to be ground and stripped.
As a further improvement of an embodiment of the invention, the paper-plastic separation method further provides a cyclone separator communicated with the paper-plastic grinding and stripping machine, the mixed material of the paper and the plastic separated by the paper-plastic grinding and stripping machine enters the cyclone separator, and the separation of the paper and the plastic is realized by utilizing the difference of densities of the paper and the plastic after absorbing water.
Compared with the prior art, the invention has the beneficial effects that: the paper-plastic grinding and stripping machine is adopted, only a small amount of water needs to be sprayed into the paper-plastic grinding and stripping machine, paper and plastic are separated in a grinding and stripping mode, water consumption is greatly reduced, no sewage is generated in the whole production process, investment and operating cost of matched water treatment facilities can be effectively reduced, in addition, fire disasters possibly caused by high-speed operation of equipment are prevented, and paper-plastic separation efficiency and pulp quality are greatly improved.
Drawings
FIG. 1 is a process flow diagram of a paper-plastic separation system in an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
In the various illustrations of the present application, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for ease of illustration and, thus, are provided to illustrate only the basic structure of the subject matter of the present application.
In the description of the embodiments of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner" and "outer" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are generally referred to in a normal use state of the paper-plastic separation system, and do not indicate that the indicated positions or elements must have specific orientations.
As shown in fig. 1, a preferred embodiment of the present invention provides a paper-plastic separation system for waste paper treatment, wherein the paper-plastic separation system comprises a paper-plastic decorticator, a spraying nozzle is arranged on the paper-plastic decorticator, a fixed disc and a movable roller movably arranged relative to the fixed disc are arranged in the paper-plastic decorticator, the broken waste paper material is placed in the paper-plastic decorticator, the spraying nozzle sprays water on the waste paper material of the paper-plastic decorticator, and the waste paper material peels off plastic adhered on the waste paper material by the squeezing and pushing actions between the movable roller and the fixed disc.
In the preferred embodiment, the paper-plastic grinding and stripping machine is adopted, so that only a small amount of water needs to be sprayed into the paper-plastic grinding and stripping machine, the paper-plastic is separated in a grinding and stripping mode, the water consumption is greatly reduced, no sewage is generated in the whole production process, and the investment and the operating cost of matched water treatment facilities can be effectively reduced. In addition, the plastic is easier to peel off, especially the plastic adhered on the paper by the adhesive tape is separated from the paper, the separation effect of the waste paper dry pulp and the plastic is effectively improved, and the purity and the quality of the dry pulp are improved. Further, a possible fire due to high-speed operation of the equipment is prevented.
Further, the paper-plastic separation system further comprises a crusher and a conveyor arranged between the crusher and the paper-plastic grinding and stripping machine, the crusher crushes the waste paper into paper shreds with the particle size of 40mm to 50mm, and the conveyor conveys the paper shreds to the paper-plastic grinding and stripping machine. Preferably, the conveyer sets up to band conveyer, and the breaker is roughly about 50mm with waste paper breakage to the particle size, and this broken particle size can satisfy the feeding requirement of follow-up postpartum care apparatus, does not damage paper fibre again, does not influence the dry pulp quality.
The paper-plastic separation system further comprises a plate chain conveyor, the waste paper containing plastics is fed into the crusher by the plate chain conveyor, and the plate chain conveyor conveys the waste paper containing plastics to be crushed to the crusher.
The paper-plastic separation system also comprises a spraying unit which uniformly sprays water into the paper-plastic grinding and stripping machine through a spraying nozzle to soften the shredded paper to be ground and stripped. The water fully contacts and adsorbs shredded paper conveyed by the belt conveyor, the shredded paper adsorbing a small amount of water mist is softened, the property of plastic impurities is unchanged, and the waste paper materials are separated from the plastic adhered to the waste paper materials through the extrusion and push-grinding effects between the movable grinding and the fixed disc, so that the separation of the paper and the plastic is realized.
The paper-plastic separation system also comprises a cyclone separator communicated with the paper-plastic grinding and stripping machine, the mixed material of the paper and the plastic which are treated by the paper-plastic grinding and stripping machine and are separated enters the cyclone separator, and the separation of the paper and the plastic is realized by utilizing the different densities of the paper and the plastic after absorbing the water.
The paper-plastic separation system also comprises a screw conveyor arranged between the paper-plastic grinding and stripping machine and the cyclone separator, and the mixed material of the separated paper and plastic is conveyed into the cyclone separator through the screw conveyor.
The paper-plastic separation system also comprises a negative pressure winnowing machine connected with the cyclone separator, a guide plate is arranged in the cyclone separator, paper falls to the bottom of the cyclone separator due to gravity, and plastic is upwards sucked into the negative pressure winnowing machine along the guide plate in the cyclone separator under the action of the negative pressure winnowing machine. Preferably, the guide plate is a spiral guide plate, and the negative pressure winnowing machine is connected to the top of the cyclone separator.
The materials processed by the paper-plastic grinding and stripping machine are conveyed into the cyclone separator by the screw conveyor, the materials are fed into the middle of the cyclone separator, the negative pressure separator draws air outwards from the top of the cyclone separator, the density of the paper is greater than that of the plastic after absorbing a small amount of moisture, so the separated paper falls to the bottom of the cyclone separator under the action of gravity, and the plastic is upwards sucked into the negative pressure separator along the spiral guide plate in the cyclone separator under the action of the negative pressure separator.
The paper-plastic separation system also comprises a discharger communicated with the negative pressure separator through a pipeline, and the plastic is discharged through the discharger. Preferably, the discharger is a rotary discharger,
the invention also provides a paper-plastic separation method for waste paper treatment, wherein the paper-plastic separation method comprises the following steps:
a. providing a paper-plastic grinding and stripping machine, and placing the crushed waste paper material into the paper-plastic grinding and stripping machine;
b. the spraying nozzle sprays water on the waste paper material of the paper plastic grinding and stripping machine;
c. the paper-plastic grinding and stripping machine is internally provided with a fixed disc and a movable roller which is movably arranged relative to the fixed disc, and the waste paper materials are stripped from plastics adhered to the waste paper materials through the extrusion and push-roller action between the movable roller and the fixed disc.
It should be understood that although the specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it will be appreciated by those skilled in the art that the specification as a whole may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a piece-rate system is moulded to paper that waste paper was handled, its characterized in that, piece-rate system is moulded to paper includes that paper grinds decorticator, paper is moulded and is equipped with the spraying shower nozzle on decorticator, paper is moulded the mill and is equipped with the price fixing and for the mill is moved that the price fixing activity set up, and the waste paper material after the breakage is arranged in paper and is moulded the mill and decorticator, and the spraying shower nozzle sprays water on the waste paper material of paper mill decorticator, and the waste paper material passes through move roll and the fixed plate between the extrusion with push away the grinding effect, peel off the plastics of adhesion on the waste paper material.
2. The paper-plastic separation system according to claim 1, further comprising a crusher and a conveyor arranged between the crusher and the paper-plastic stripper, wherein the crusher crushes the waste paper into crushed paper with a particle size of 40mm to 50mm, and the conveyor conveys the crushed paper to the paper-plastic stripper.
3. The paper-plastic separation system of claim 1, further comprising a spraying unit, wherein the spraying unit uniformly sprays water into the paper-plastic grinding and stripping machine through a spraying nozzle to soften the shredded paper to be ground and stripped.
4. The paper-plastic separation system of claim 1, further comprising a cyclone separator in communication with the paper-plastic grinding and stripping machine, wherein the mixed material of separated paper and plastic treated by the paper-plastic grinding and stripping machine enters the cyclone separator, and separation of the paper and plastic is achieved by utilizing the difference in density of the paper and plastic after absorbing water.
5. The paper-plastic separation system of claim 4, further comprising a screw conveyor disposed between the paper-plastic decorticator and the cyclone, the screw conveyor conveying the separated mixed material of paper and plastic into the cyclone.
6. The paper-plastic separation system of claim 4, further comprising a negative pressure air separator connected to the cyclone separator, wherein a guide plate is installed in the cyclone separator, paper falls to the bottom of the cyclone separator due to gravity, and plastic is sucked into the negative pressure separator upwards along the guide plate in the cyclone separator under the action of the negative pressure separator.
7. The paper-plastic separation system of claim 6, further comprising a discharger in communication with the negative pressure separator through a conduit, through which plastic is discharged.
8. A paper-plastic separation method for waste paper treatment is characterized by comprising the following steps:
a. providing a paper-plastic grinding and stripping machine, and placing the crushed waste paper material into the paper-plastic grinding and stripping machine;
b. the spraying nozzle sprays water on the waste paper material of the paper plastic grinding and stripping machine;
c. the paper-plastic grinding and stripping machine is internally provided with a fixed disc and a movable roller which is movably arranged relative to the fixed disc, and the waste paper materials are stripped from plastics adhered to the waste paper materials through the extrusion and push-roller action between the movable roller and the fixed disc.
9. The paper-plastic separation method according to claim 8, further comprising a spraying unit, wherein the spraying unit uniformly sprays water into the paper-plastic grinding and stripping machine through a spraying nozzle to soften the shredded paper to be ground and stripped.
10. The paper-plastic separation method according to claim 8, characterized in that a cyclone separator is further provided and is communicated with the paper-plastic grinding and stripping machine, the mixed material of the separated paper and plastic treated by the paper-plastic grinding and stripping machine enters the cyclone separator, and the separation of the paper and plastic is realized by utilizing the difference of densities of the paper and plastic after absorbing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877113.4A CN115228900A (en) | 2022-07-25 | 2022-07-25 | Paper-plastic separation system and paper-plastic separation method for waste paper treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877113.4A CN115228900A (en) | 2022-07-25 | 2022-07-25 | Paper-plastic separation system and paper-plastic separation method for waste paper treatment |
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| Publication Number | Publication Date |
|---|---|
| CN115228900A true CN115228900A (en) | 2022-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210877113.4A Pending CN115228900A (en) | 2022-07-25 | 2022-07-25 | Paper-plastic separation system and paper-plastic separation method for waste paper treatment |
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| Country | Link |
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| CN (1) | CN115228900A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1498108A (en) * | 1974-03-15 | 1978-01-18 | Nederlandse Appl Scient Res | Recovery of paper fibres from paper-containing refuse |
| US4440635A (en) * | 1979-03-29 | 1984-04-03 | Haigh M. Reiniger | Process and apparatus for the recovery of cellulose fibers from paper-plastic mixtures |
| JP2000127166A (en) * | 1998-10-28 | 2000-05-09 | Nkk Corp | Method for separating waste plastic and paper |
| WO2001036739A1 (en) * | 1999-11-12 | 2001-05-25 | Trienekens Ag | Method and device for sorting a mixture of paper |
| CN105178079A (en) * | 2015-09-29 | 2015-12-23 | 山东宇能机械有限公司 | Efficient energy-saving environment-friendly paper and plastic separator |
| JP2018075571A (en) * | 2018-01-16 | 2018-05-17 | 日本製紙クレシア株式会社 | Separation device of paper material and plastic film of paper-made liquid container |
| CN108589362A (en) * | 2018-05-16 | 2018-09-28 | 安徽省昌泰再生资源有限公司 | A kind of method of the dry separation of waste and old paper composite wallpaper |
| CN110076176A (en) * | 2019-04-18 | 2019-08-02 | 广州励美环保科技有限公司 | House refuse terminal mechanization categorizing system and method |
| CN112934927A (en) * | 2021-04-02 | 2021-06-11 | 福建东森节能环保科技股份有限公司 | Waste paper dry pulp production line |
-
2022
- 2022-07-25 CN CN202210877113.4A patent/CN115228900A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1498108A (en) * | 1974-03-15 | 1978-01-18 | Nederlandse Appl Scient Res | Recovery of paper fibres from paper-containing refuse |
| US4440635A (en) * | 1979-03-29 | 1984-04-03 | Haigh M. Reiniger | Process and apparatus for the recovery of cellulose fibers from paper-plastic mixtures |
| JP2000127166A (en) * | 1998-10-28 | 2000-05-09 | Nkk Corp | Method for separating waste plastic and paper |
| WO2001036739A1 (en) * | 1999-11-12 | 2001-05-25 | Trienekens Ag | Method and device for sorting a mixture of paper |
| CN105178079A (en) * | 2015-09-29 | 2015-12-23 | 山东宇能机械有限公司 | Efficient energy-saving environment-friendly paper and plastic separator |
| JP2018075571A (en) * | 2018-01-16 | 2018-05-17 | 日本製紙クレシア株式会社 | Separation device of paper material and plastic film of paper-made liquid container |
| CN108589362A (en) * | 2018-05-16 | 2018-09-28 | 安徽省昌泰再生资源有限公司 | A kind of method of the dry separation of waste and old paper composite wallpaper |
| CN110076176A (en) * | 2019-04-18 | 2019-08-02 | 广州励美环保科技有限公司 | House refuse terminal mechanization categorizing system and method |
| CN112934927A (en) * | 2021-04-02 | 2021-06-11 | 福建东森节能环保科技股份有限公司 | Waste paper dry pulp production line |
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