Impeller for separating dust particles from an air stream

US4145197A · kind A · utility

Assignee

• Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesellschaft · AT

Inventors

• Emanuel Strahsner · Zeltweg, AT
• Peter Kogler · Zeltweg, AT
• Alfred Zitz · Zeltweg, AT

Key dates

• Filing date: May 5, 1977
• Grant date: Mar 20, 1979
• Expiry date: May 5, 1997

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21F5/20
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A device for separating dust particles from an air stream, in particular for mine ventilation, comprising a centrifugal separator, a blower for conveying the air stream through the centrifugal separator, and a device connected in advance of the centrifugal separator in the air flow direction to spray or atomize water which is fed into the air stream entering the centrifugal separator, the centrifugal separator being formed from at least one impeller with substantially radial blades connected together at their outer ends by circumferentially extending walls, the distance of which from the axis increases in the air flow direction, passage apertures being provided to the housing at the positions of greatest diameter.