Title:
多層プラスチックの層を分離するための方法
Document Type and Number:
Japanese Patent JP7268920
Kind Code:
B2
Abstract:
System and method for separating the layers of multilayer plastics that comprise at least a first layer and a second layer made of different plastics, which uses a system for separating the layers of multilayer plastics, the method comprising the following stages:- pressurising a vessel (1) with preheated vapour generated in a boiler (3) and introduced into the vessel (1) until the interior of the vessel (1) reaches a pressure of between 1 bar and 12 bar, and a temperature between 100ºC and 191.12ºC,- taking the interior of a discharge tank (4) placed after the vessel (1) to a relative pressure of between -0.7 bar and 0.1 bar, and a temperature between 15ºC and 25ºC,- shredding the multilayer plastics into multilayer plastic fragments,- introducing the multilayer plastic fragments into the vessel (1) and keeping them in it for a time between 10 seconds and 60 seconds, thereby weakening the union between the layers of the multilayer plastic fragments,- transferring the multilayer plastic fragments from the vessel (1) to the discharge tank (4), where they are kept for a time between 1 minute and 5 minutes,- transferring the multilayer plastic fragments from the discharge tank (4) to a mechanical separation unit (6), where the multilayer plastic fragments are separated into single-layer plastic fragments, and- transferring the single-layer plastic fragments from the mechanical separation unit (6) to a mechanical sorting unit (7), where the single-layer plastic fragments are sorted by material.
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Inventors:
Garrido Escudero, Amario
Martinez Gracia, Alexandra
Escudero Marin, Pedro Antonio
Martinez Gracia, Alexandra
Escudero Marin, Pedro Antonio
Application Number:
JP2021529528A
Publication Date:
May 08, 2023
Filing Date:
August 01, 2018
Export Citation:
Assignee:
Repetco Innovations S.L.
International Classes:
B29B17/00; B02C23/08
Domestic Patent References:
| JP2001170933A |
Foreign References:
| US20150107762 | ||||
| WO2017037260A1 | ||||
| WO2003025101A2 |
Attorney, Agent or Firm:
Patent Attorney Corporation Hiroe Associates Patent Office