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CN-121973357-A - Multistage separation process for plastic composite film and leftover material and cyclic soaking device

CN121973357ACN 121973357 ACN121973357 ACN 121973357ACN-121973357-A

Abstract

The invention discloses a multistage separation process and a circulating soaking device for plastic composite films and leftover materials, and relates to the technical field of plastic composite film recovery. The conveying chain drives the movable plate to move and convey the strip-shaped objects to move obliquely upwards, the movable plate moves transversely relative to the conveying chain, and the movable plates of the upper kneading mechanism and the lower kneading mechanism move reversely, so that the PE film and the PTE film are primarily separated, chemical agents are enabled to enter the PE film and the PTE film to further dissolve glue, in the process that the movable plate moves transversely, the movable plate and the adjacent movable plate form a group and move synchronously, and are separated after moving synchronously for a period of time, and the movable plate and the adjacent movable plate form a group, so that the phenomenon that the PE film and the PTE film cannot be completely separated due to inconsistent kneading directions of the front movable plate and the rear movable plate is avoided.

Inventors

  • WANG XIAOGANG
  • YU JIE

Assignees

  • 滁州佰利新材料科技有限公司

Dates

Publication Date
20260505
Application Date
20260401

Claims (10)

  1. 1. The utility model provides a multistage separation technology of plastic composite film and leftover bits, its characterized in that includes soaking tank (2) and slope setting up separating tank (1) on it, be provided with in separating tank (1) about symmetrical distribution rub mechanism (11), rub mechanism (11) including bilateral symmetry distribution's conveying chain (14) and be located fly leaf (111) on both sides conveying chain (14), still include the following step: S1, conveying the plastic composite film which is crushed into strips and subjected to paper-plastic separation into a soaking tank (2) to soak and remove part of glue, and enabling the strips to enter between two kneading mechanisms (11) along with water flow; S2, a conveying chain (14) drives a movable plate (111) to move and conveys a strip to move upwards obliquely, the movable plate (111) moves transversely relative to the conveying chain (14), and the movable plates (111) of the upper kneading mechanism and the lower kneading mechanism (11) move reversely; s3, any movable plate (111) and two adjacent movable plates (111) are alternately formed into a group and move in the same direction, and the rubbing mechanism (11) rubs the strip-shaped objects to enable the chemical agent to penetrate into the space between the PE film and the PTE film; S4, sorting and recycling the PE film and the PTE film separated from the rear part of the kneading mechanism (11).
  2. 2. The multistage separation process of plastic composite films and scraps according to claim 1, wherein the number of the movable plates (111) is even, and the movable plates (111) positioned on even numbers are symmetrically and movably provided with inserting rods (113) for inserting adjacent movable plates (111).
  3. 3. The multi-stage separation process for plastic composite films and scraps according to claim 2, wherein a plurality of raised strips (112) extending to the upper side of the movable plate (111) are arranged on the movable plate (111).
  4. 4. A plastic composite film and scrap multistage separation process in accordance with claim 3, wherein a slide bar (114) is provided on the movable plate (111), the slide bar (114) moves to move the insert bar (113) and the protruding bar (112) is oriented to be adjustable.
  5. 5. The multistage separation process of plastic composite films and scraps according to claim 4, wherein the inside of the separation tank (1) is provided with right-angle triangular blocks (124) for pushing against sliding bars (114) on the two kneading mechanisms (11).
  6. 6. The plastic composite film and leftover material multistage separation process according to claim 1, wherein the separation groove (1) is provided with a round rectangular guide groove (12) for guiding the movable plate (111) to move, and the end parts of the horizontal parts of the two groups of guide grooves (12) close to one side are provided with grooves.
  7. 7. The plastic composite film and scrap multi-stage separation process according to claim 6, wherein the end of the movable plate (111) is provided with a connecting sleeve (115) adapted to the guide groove (12).
  8. 8. The plastic composite film and leftover material multistage separation process according to claim 6, wherein a bump (117) is arranged on a connecting sleeve (115) on a movable plate (111) on even number, and an isosceles triangle block (123) for pushing against the bump (117) is arranged in the separation groove (1).
  9. 9. The multistage separation process of plastic composite films and scraps according to claim 5, characterized in that a guide plate (13) which is flush with the top surface of a movable plate (111) positioned on the corresponding guide groove (12) of the lower kneading mechanism (11) is arranged in the soaking tank (2).
  10. 10. A plastic composite film and leftover material circulating soaking device, which is based on the plastic composite film and leftover material multistage separation process according to any one of claims 1-9, and is characterized in that a nozzle with the spraying direction facing the separation tank (1) is arranged on the soaking tank (2).

Description

Multistage separation process for plastic composite film and leftover material and cyclic soaking device Technical Field The invention relates to the technical field of plastic composite film recovery, in particular to a plastic composite film and leftover material multistage separation process and a circulating soaking device. Background The composite paper-plastic bag is a packaging bag formed by compounding paper and plastic films, has higher sealing performance and moisture, dust and oil proofing performance, and is suitable for packaging various articles such as food, chemical products, daily necessities and the like. The use of such a package can extend the shelf life of the article and protect the article from the external environment. In order to protect the environment and save materials, the composite paper-plastic bag can be recycled through multistage separation. The invention discloses a waste plastic film recycling device, which is disclosed in the application publication number CN121062075B, and is named as a waste plastic film recycling device in 2026 and 01 and 09, and comprises a recycling box body, a cutting box assembly, a stirring assembly, a discharging assembly and a discharging assembly, wherein the recycling box body is internally divided into a cleaning cavity and a discharging cavity, the cutting box assembly is fixedly arranged at the upper end of the recycling box body and is positioned right above the cleaning cavity, the cutting assembly is provided with two groups and is symmetrically arranged on the cutting box assembly and is used for cutting waste plastic films, the stirring assembly is arranged on the recycling box body and is positioned at the cleaning cavity and is used for stirring and cleaning the cut waste plastic films, the discharging assembly is arranged on a discharging side plate and is used for discharging the cleaned waste plastic films out of the recycling box body. The defects of the prior art are that when the composite paper-plastic bag is recovered, the composite paper-plastic bag is generally crushed into strips, paper pulp on the composite paper-plastic bag is removed through soaking treatment, the treated strips are sent to a soaking tank, chemical agents in the soaking tank dissolve glue in the strips to separate the strips into PE films and PTE films, and then separation and recovery are carried out, but the mode only depends on natural permeation of the chemical agents, the glue between the PE films and the PTE films cannot be completely dissolved, so that the PE films and the PTE films are always adhered under the action of the glue, and further the PE films and the PTE films cannot be completely separated, thereby influencing the subsequent separation and recovery procedures. Disclosure of Invention The invention aims to provide a plastic composite film and leftover material multistage separation process and a circulating soaking device, which are used for solving the defects in the prior art. In order to achieve the purpose, the invention provides the technical scheme that the plastic composite film and leftover material multistage separation process comprises a soaking tank and a separation tank obliquely arranged on the soaking tank, wherein a rubbing mechanism which is vertically and symmetrically distributed is arranged in the separation tank, the rubbing mechanism comprises a conveying chain which is horizontally and symmetrically distributed and a movable plate which is positioned on the conveying chains at two sides, and the process further comprises the following steps: S1, conveying the plastic composite film which is crushed into strips and subjected to paper-plastic separation into a soaking tank to soak and remove part of glue, and enabling the strips to enter between two kneading mechanisms along with water flow; S2, the conveying chain drives the movable plate to move and convey the strip-shaped objects to move upwards in an inclined way, the movable plate moves transversely relative to the conveying chain, and the movable plates of the upper kneading mechanism and the lower kneading mechanism move reversely; S3, any movable plate and two adjacent movable plates are alternately formed into a group and move in the same direction, and the rubbing mechanism rubs the strip-shaped objects to enable the chemical agent to penetrate into the space between the PE film and the PTE film; s4, sorting and recycling the PE film and the PTE film which are separated from the rear part of the kneading mechanism. As a further description of the technical scheme, the number of the movable plates is even, and the movable plates positioned on even numbers are symmetrically and movably provided with inserted rods for inserting adjacent movable plates. As a further description of the technical scheme, the movable plate is provided with a plurality of raised strips extending to the upper part of the movable plate. As a further description of the technical