Device in a filter sector for a rotating filter disc

US6113783A · kind A · utility

Assignee

• Kvaerner Pulping AB · SE

Inventors

• Kent Strid · Järbo, SE
• Rolf Oswaldson · Luleå, SE

Key dates

• Filing date: Jun 14, 1999
• Grant date: Sep 5, 2000
• Expiry date: Jun 14, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D33/82
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter sector for a rotating filter disc has filtrate conduits for filtrate resulting from filtration which is discharged at the more narrow end of the filter sector. The filtrate conduits are outwardly defined by a filtrating layer permeable to the filtrate. The filter sector has at least one element provided with a profiling forming the filtrate conduit. The profiled element itself forms the filtrating layer because the profiled element has a perforation permeable to the filtrate.