Device for removing dust-shaped particles from an air stream serving for the ventilation of mines

US4193778A · kind A · utility

Assignee

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

Inventors

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

Key dates

• Filing date: Nov 8, 1977
• Grant date: Mar 18, 1980
• Expiry date: Nov 8, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S261/54
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A gas scrubber having an air inlet and an air exit, said scrubber comprising: a plurality of venturi tubes having upstream ends and downstream ends, the venturi tubes being arranged parallel to each other; a centrifugal separator in communication with the downstream ends of the venturi tubes; a blower for drawing dust-laden air into the upstream ends of the venturi tubes and then into the centrifugal separator; nozzles for introducing water into the air flowing through the venturi tubes; an inner tubular housing surrounding the venturi tubes; an outer tubular housing surrounding and spaced from the inner tubular housing so as to form a space between the housings; a conduit for conducting air from the blower to the air exit; a funnel widening in the air flow direction so as to have an inlet end and an outlet end of larger cross section than the inlet end, the inlet end being connected to the air exit; and porous air filter material connected completely across the outlet end of the funnel.