Lift wall for a tube mill

US7168645B2 · kind B2 · utility

Assignee

• Polysius AG

Inventors

• Gerhard Blatton · Beckum, DE
• Hubert Grothaus · Bad Iburg, DE
• Ludger Schulte · Ahlen, DE

Key dates

• Filing date: Jun 4, 2002
• Grant date: Jan 30, 2007
• Expiry date: Sep 28, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B02C17/06
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A lifting wall for a tube mill which has a discharge means with lifting vanes in order to transport the material being ground to discharge openings by the rotary movement of the tube mill. The lifting vanes are disposed obliquely with respect to the radial direction so that the material being ground slides promptly to the center where it is discharged through the discharge openings still below the horizontal longitudinal central plane of the tube mill. The lifting vanes are substantially flat and bent like blades in a region of the discharge openings.