Tube grinder and method for comminuting lumpy grinding stock

US7073737B2 · kind B2 · utility

Assignee

• Polysius AG

Inventors

• Ludger Schulte · Ahlen, DE
• Frank Ungethüm · Beckum, DE
• Robert Schnatz · Hamm, DE
• Thomas Rüther · Drensteinfurt, DE
• Ludwig Könning · Ahlen, DE
• Jens Jacob Reimers · Hamm, DE
• Hubert Eickholt · Beckum, DE
• Dirk Dilly · Beckum, DE
• Heinz Alker · Ahlen, DE
• Reinhard Giesemann · Harsewinkel, DE

Key dates

• Filing date: Nov 28, 2002
• Grant date: Jul 11, 2006
• Expiry date: Nov 28, 2022

Classification

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

Abstract

The invention relates to a rotary tube mill and to a method of comminuting lumpy mill feed material, in which at least a first and a second grinding chamber as well as a co-rotating partition disposed between the grinding chambers are used. The material ground in the first grinding chamber is divided in the partition into first and second part-quantities of mill feed material, whereby at least a part of the second part-quantity of mill feed material proceeds into the second grinding chamber and at least the first part-quantity of the mill feed material is discharged separately from the tube mill.