Mixing system

US7665884B2 · kind B2 · utility

Assignees

• Areva ANP GmbH · DE
• STRABAG AG · AT

Inventors

• Dirk Walter · Erlangen, DE
• Richard Budin · Traiskirchen, AT
• Klaus Weigl · Spittal an der Drau, AT
• Ingo Ganzmann · Erlangen, DE

Key dates

• Filing date: Jan 30, 2006
• Grant date: Feb 23, 2010
• Expiry date: Feb 14, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01F2215/0427
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A mixing system should, while effecting a homogeneous mixing with a low loss of pressure, have a short intermixing distance. The mixing system contains mixing elements disposed in a flow channel and have mixing blades disposed around a respective central axis. Adjacent mixing blades each have an overlap in their plane of projection to the normal plane of the central axis. An injection location for supplying a reaction medium is connected upstream from some or all of the mixing elements. The injection location is dimensioned such that the reaction medium, at its discharge from the injection location, has a discharge velocity that is increased by an excess factor with regard to the flow medium inside the flow channel. The mixing elements are dimensioned such that the quotient of the degree of overlap of adjacent mixing blades (in percent) and of the excess factor ranges from 0.1 to 5.