Patent · US Active

Roller grinding mill

US8172168B2 · kind B2 · utility

2Cited by

5References

8Claims

0Family size

Assignee

Gebr. Pfeiffer AG · DE

Inventors

Dirk Hoffmann · Kürten, DE
Otto Jung · Stuttgart, DE
Karl-Heinz Schuette · Trippstadt, DE
Hardy Lessmeister · Kaiserslautern, DE
Thomas Hoster · Kaiserslautern, DE

Key dates

Filing date	Sep 20, 2010
Grant date	May 8, 2012
Priority date	—
Expiry date	Sep 20, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB02C15/006
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A roller grinding mill is provided that includes a grinding plate, grinding rollers, and at least two drives acting upon the grinding plate, and to a method for operating such a roller grinding mill. At least one grinding roller and substantially simultaneously at least one matching drive can be disengaged during operation. Thus only small radial forces are created that effect the radial bearing of the grinding plate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.