Method for detecting and sorting glass
US8030589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2006 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Nov 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/33
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cost efficient and reliable method for online sorting of special glass which works independent of the color of glass and the shape of the material. The scrap glass stream to be detected is thereby irradiated by UV absorption or transmission values of the scrap glass stream, more specifically of the material-specific UV absorption edges and “UV-cutoff” frequencies, with reference values obtained before from standardized material laboratory inspections. If special glass is being detected, blowing nozzles disposed downstream of a detector unit divert the special glass toward a predetermined location where it is deposited. There can also be a system which includes a radiation source, a detection unit, an evaluation and control unit and a removal apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.