Process for the treatment of solid residue from refuse incineration plants, and apparatus for performing the process

US5765489A · kind A · utility

Assignees

• Von Roll Umwelttechnik AG · DE
• “Holderbank” Financiere Glarus AG · CH

Inventors

• Ernst Hugentobler · Wermatswil, CH
• Hans Ruegg · Wohlen, CH
• Karl Heinz Pflugl · Weinböhla, DE
• Norbert Kiethe · Bad Marienberg, DE
• Ruedi Frey · Bassersdorf, CH
• Anton Mayer · Niedernhausen, DE
• Theo Rey · Kufstein, AT
• Alfred Edlinger · Baden, CH

Key dates

• Filing date: Nov 27, 1995
• Grant date: Jun 16, 1998
• Expiry date: Nov 27, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S106/01
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A process for the treatment of solid residue from a refuse incineration plant, involving: PA1 melting the solid residue in a first heating chamber under oxidizing conditions to provide a melt; PA1 reducing any heavy metal compounds present in the melt to elemental metal in a second heating chamber; and PA1 transferring the resulting melt to a third heating chamber; wherein any elemental metal is sedimented in each heating chamber and the sedimented elemental metal is continuously returned from two of the heating chambers to the remaining heating chamber, wherein the elemental metal is collected in at least one of the first or second heating chambers and discharged therefrom, and an apparatus for performing the process.