Roller mill

US7690591B2 · kind B2 · utility

Assignee

• LOESCHE GMBH · DE

Inventors

• Andre Baetz · Frechen, DE
• Michael Keyβner · Goldkronach, DE
• Udo Meyer · Herrenberg, DE

Key dates

• Filing date: Oct 19, 2006
• Grant date: Apr 6, 2010
• Expiry date: May 20, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B02C2015/002
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a roller mill, particularly intended for dressing ores.To reduce the energy demand for comminution and classifying a grinding product, a classifying device is positioned below the grinding area and to it is supplied the comminuted ground material under gravity action, as well as classifying air from an annular chamber in the lower region of the grinding bowl and which has at least one fine material outlet and coarse material outlet.