Method for sorting recyclable products
US7503513B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2006 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Apr 1, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/52
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of producing a fuel substance by separating materials in a recycling operation based on BTU component content is provided. A stream of materials including non-sorted, heterogeneous, recycled materials is shredded. The stream of materials is separated into heavy and light materials with a separator that discharges the light and heavy materials in respective light and heavy material streams. Ferrous and non-ferrous materials are magnetically separated from the heavy material stream. The non-ferrous materials are discharged to a screen for further separation. The light materials are processed through a rotary trommel and a non-ferrous metal separator to separate the light materials into fine, coarse, and non-ferrous metal materials, the coarse materials having a BTU component content of at least four thousand BTU's per ton. Low density materials are separated from the coarse materials with a low density separator, thereby increasing the BTU component content of the coarse materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.