Process for the production of pressed bodies from municipal refuse

US4115497A · kind A · utility

Assignee

• Elopak AS · NO

Inventors

• Terje M. Halmo · Stavanger, NO
• Liv Skoglund · Trondheim, NO

Key dates

• Filing date: Dec 1, 1976
• Grant date: Sep 19, 1978
• Expiry date: Dec 1, 1996

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/91
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for the production of pressed bodies from municipal refuse or waste, especially refuse having a content of wood-based materials, plaster and animal and vegetable substances, in which the refuse is subjected to a treatment for reducing particle size as well as for the separation of metals and similar hard, inorganic fractions. After collection, the refuse is divided up without the addition of fluid and is thereafter dried in a hot gas to reduce the water content. The particles of refuse material are screened in an air stream to separate heavy fractions and thereafter are pressed to pressed bodies during the addition of an adhesive and/or binding agent.