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CN-224208219-U - Electrostatic sorting device for solid waste

CN224208219UCN 224208219 UCN224208219 UCN 224208219UCN-224208219-U

Abstract

The application discloses an electrostatic separation device for solid wastes, which comprises a plastic mixture doped with metal, wherein the electrostatic separation device comprises a first feeding component, a magnetic separation component, a second feeding component and an electric field generation component, wherein the first feeding component is used for conveying the plastic mixture doped with metal, the magnetic separation component is arranged at the downstream of the feeding component and is used for separating metal in the plastic mixture, the second feeding component is arranged at the downstream of the magnetic separation component and is used for conveying the plastic mixture, the plastic mixture after the metal is removed is formed into a thin layer material with a preset thickness, the electric field generation component is arranged at the downstream of the second feeding component and/or is arranged on the second feeding component and is used for forming an electric field in the horizontal direction, and the separation component is arranged at the side of the electric field generation component and is matched with the electric field generation component so as to separate plastics in the plastic mixture. The application can effectively improve the sorting efficiency and sorting quality of the plastic mixture doped with metal, and can greatly improve the use experience of users.

Inventors

  • ZHANG CUILING

Assignees

  • 河北森虹宇环境科技有限公司

Dates

Publication Date
20260508
Application Date
20250529

Claims (10)

  1. 1. An electrostatic separation device for solid waste comprising a metal-doped plastic mixture, the electrostatic separation device comprising: A first feeding assembly for conveying a metal-doped plastic mixture; a magnetic separation assembly disposed downstream of the first feed assembly for separating metals in the plastic mixture; the second feeding assembly is arranged at the downstream of the magnetic separation assembly and is used for conveying the plastic mixture and forming the plastic mixture after metal removal into a thin layer material with a preset thickness; The electric field generating assembly is arranged at the downstream of the second feeding assembly and/or on the second feeding assembly and is used for forming an electric field in the horizontal direction; And the sorting assembly is arranged beside the electric field generating assembly and matched with the electric field generating assembly to separate plastics in the plastic mixture.
  2. 2. The electrostatic sorting apparatus for solid waste according to claim 1, wherein the first feeding assembly comprises a crusher and a first conveyor belt adapted for use with the crusher; The crusher is used for crushing the plastic mixture doped with the metal into materials with a preset granularity; the first conveyor belt is arranged downstream of the crusher and is used for conveying materials crushed into a preset granularity.
  3. 3. The electrostatic sorting apparatus for solid waste according to claim 2, wherein the first feeding assembly further comprises a humidity adjusting unit; The humidity adjusting unit is arranged in the crusher and used for controlling the humidity of materials crushed into preset granularity to be in a preset range.
  4. 4. The electrostatic separator for solid waste according to claim 1, wherein the magnetic separation assembly comprises a bracket, a second conveyor belt arranged on the bracket, and a driving motor for driving the second conveyor belt to rotate; The bracket is provided with a receiving hopper positioned above the second conveyor belt, and the receiving hopper is positioned at the upstream of the second conveyor belt; The device comprises a first conveying belt, a second conveying belt, a first feeding assembly, a second feeding assembly, a first outlet, a second outlet, a strong magnetic roller, a first outlet and a second outlet, wherein the strong magnetic roller is arranged at the downstream of the second conveying belt, the first outlet and the second outlet are arranged at the downstream of the second conveying belt, the first outlet is positioned at the obliquely lower part of the second conveying belt and is used for collecting metal in materials crushed into preset granularity, and the materials crushed into preset granularity after removing the metal enter the second feeding assembly through the second outlet.
  5. 5. The electrostatic sorting apparatus for solid waste according to claim 1, wherein the second feeding assembly includes a third conveyor belt and a strickle; The scraping piece is arranged on the third conveyor belt and is used for scraping the plastic mixture after metal removal into thin-layer materials with preset thickness.
  6. 6. The electrostatic separator for solid waste according to claim 5, wherein both ends of the scraping member are provided on the third conveyor belt through an adjustable member; The adjustable piece is used for controlling the scraping piece to move along the vertical direction.
  7. 7. The electrostatic separation device for solid waste of claim 1, wherein the electric field generating assembly comprises a housing, a first electric field module and a second electric field module disposed within the housing; The first electric field module and the second electric field module are oppositely arranged in the box body and are positioned on two sides of the second feeding assembly.
  8. 8. The electrostatic separator for solid waste according to claim 7, wherein the first electric field module and the second electric field module are needle-like or wire-like electrode arrays, and a pole pitch between adjacent electrodes is dynamically adjustable; wherein the dynamic adjustment range of the polar distance is 5-30 cm.
  9. 9. The electrostatic separation device for solid waste according to claim 7, wherein the first electric field module and/or the second electric field module is controlled using a dual-frequency high-voltage power supply; wherein the dual-frequency high-voltage power supply is capable of generating a composite waveform of 50hz+10khz.
  10. 10. An electrostatic sorting apparatus for solid waste according to any of claims 1 to 9, wherein the sorting assembly comprises a roller sorter, the roller sorter surface being coated with a conductive coating; Wherein the conductive coating cooperates with the electric field generating assembly to separate the plastic in the plastic mixture.

Description

Electrostatic sorting device for solid waste Technical Field The application relates to the technical field of separation equipment, in particular to an electrostatic separation device for solid wastes. Background Currently, electrostatic sorting refers to a machine that uses the action of static electricity to sort different materials. Electrostatic separation is a method of sorting by utilizing different electrostatic properties of various plastics. The electrostatic separation is used, and multiple times of separation are needed for various mixed waste plastics. Electrostatic sorting is particularly suitable for poled polyvinyl chloride. Among these are a class of solid waste with a metal plastic mixture. When sorting to such plastics mixture that has metal, the project organization is comparatively complicated, and owing to have metal for plastics mixture's separation efficiency and separation quality are lower, lead to user's use experience to feel relatively poor. Disclosure of utility model The present application aims to solve, at least to some extent, one of the above technical problems in the prior art. An exemplary embodiment of the present application provides an electrostatic separation device for solid waste including a plastic mixture doped with metal, the electrostatic separation device including: A first feeding assembly for conveying a metal-doped plastic mixture; a magnetic separation assembly disposed downstream of the first feed assembly for separating metals in the plastic mixture; the second feeding assembly is arranged at the downstream of the magnetic separation assembly and is used for conveying the plastic mixture and forming the plastic mixture after metal removal into a thin layer material with a preset thickness; The electric field generating assembly is arranged at the downstream of the second feeding assembly and/or on the second feeding assembly and is used for forming an electric field in the horizontal direction; And the sorting assembly is arranged beside the electric field generating assembly and matched with the electric field generating assembly to separate plastics in the plastic mixture. According to one embodiment of the application, the first feeding assembly comprises a crusher and a first conveyor belt adapted for use with the crusher; The crusher is used for crushing the plastic mixture doped with the metal into materials with a preset granularity; the first conveyor belt is arranged downstream of the crusher and is used for conveying materials crushed into a preset granularity. According to one embodiment of the application, the first feeding assembly further comprises a humidity adjusting unit; The humidity adjusting unit is arranged in the crusher and used for controlling the humidity of materials crushed into preset granularity to be in a preset range. According to one embodiment of the application, the magnetic separation assembly comprises a bracket, a second conveying belt arranged on the bracket and a driving motor for driving the second conveying belt to rotate; The bracket is provided with a receiving hopper positioned above the second conveyor belt, and the receiving hopper is positioned at the upstream of the second conveyor belt; The device comprises a first conveying belt, a second conveying belt, a first feeding assembly, a second feeding assembly, a first outlet, a second outlet, a strong magnetic roller, a first outlet and a second outlet, wherein the strong magnetic roller is arranged at the downstream of the second conveying belt, the first outlet and the second outlet are arranged at the downstream of the second conveying belt, the first outlet is positioned at the obliquely lower part of the second conveying belt and is used for collecting metal in materials crushed into preset granularity, and the materials crushed into preset granularity after removing the metal enter the second feeding assembly through the second outlet. According to one embodiment of the application, the second feeding assembly comprises a third conveyor belt and a strickle; The scraping piece is arranged on the third conveyor belt and is used for scraping the plastic mixture after metal removal into thin-layer materials with preset thickness. According to one embodiment of the application, two ends of the scraping piece are arranged on the third conveying belt through an adjustable piece; The adjustable piece is used for controlling the scraping piece to move along the vertical direction. According to one embodiment of the application, the electric field generating assembly comprises a housing, a first electric field module and a second electric field module disposed within the housing; The first electric field module and the second electric field module are oppositely arranged in the box body and are positioned on two sides of the second feeding assembly. According to one embodiment of the application, the first electric field module and the second electric field modul