Static mixer with profiled layers

US6575617B2 · kind B2 · utility

Assignee

• Sulzer Chemtech AG · CH

Inventors

• Markus Fleischli · Winterthur, CH
• Thomas Grütter · Rüti, CH
• Thomas Uwe Fischer · Rielasingen-Worblingen, DE
• Werner Koller · Lausen, CH

Key dates

• Filing date: May 3, 2001
• Grant date: Jun 10, 2003
• Expiry date: Jun 5, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01F25/434
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A static mixer includes profiled layers which are arranged in a ring space and which contain mutually crossing flow channels which are inclined relative to a central axis. A fluid mixture is to be transported in the axial direction in the presence of a mixing action. Each layer extends over a surface which forms a closed or largely closed periphery transverse to the axis. Each layer comprises equivalent channels which extend on an inner or outer side of the layer over at least approximately equally long distances from a first to a second cross-section of the ring space, so that each channel imposes an azimuthal velocity component onto the fluid mixture which flows through it which is substantially equally large for all equivalent channels.