Disposal system for plastic
US6588597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1999 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Dec 1, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S209/913
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A treating system for selecting and recovering reusable materials from used composite plastics is constituted by a crushing process, a cleaning and grading process and a plastics separation process. The treating system for the composite plastics is constituted by combining the cleaning and grading process in which a mechanical impact force and a friction force are applied to the plastic crushed pieces so as to clean the plastics and form the gain size of the plastics, and the plastics separation process with using a hydrocyclone. Accordingly, a selecting accuracy of the selected and recovered plastics is significantly improved and the plastics are separated to high-purity plastics, whereby it is possible to utilize the recovered plastics as recycled materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.