Method and apparatus for the separation of a material mixture and use of the apparatus

US5301816A · kind A · utility

Assignee

• Buehler AG · DE

Inventors

• Heinrich Weber · Recklinghausen, DE
• Falko Lehrmann · Tönisvorst, DE
• Clemens Weibel · Uzwil, CH

Key dates

• Filing date: Aug 17, 1992
• Grant date: Apr 12, 1994
• Expiry date: Aug 17, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S209/93
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A new separating method and a corresponding apparatus and the use of the apparatus for the environmentally sound separation of different material mixtures, are disclosed wherein, in addition to dynamic forces, the area pressure between the bodies to be sorted and an inwardly elastic sorting drum are made of use. Bodies which are heavy with respect to specific area pressure sink into the interior of the drum and are thrown out at a lower location. Parts which are light with respect to specific area pressure, on the other hand, are rejected from the surface of the drum and guided away separately. In so doing, the device achieves very efficient separation. The invention is particularly effective for the separation of reclaimable material mixtures, so-called "recyclables", particularly with respect to fractions such as liftings which are otherwise difficult to separate.