Particle size reduction

US5597124A · kind A · utility

Assignee

• EVT Energie- und Verfahrenstechnik GmbH

Inventors

• Werner Kessel · Fellbach, DE
• Eckart Ruopp · Metzingen, DE

Key dates

• Filing date: Mar 9, 1994
• Grant date: Jan 28, 1997
• Expiry date: Mar 9, 2014

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B02C15/003
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for determining the profile of the surface of the lining of the grinding bowl of a rolling mill in which the constant change in the angle .alpha. of the grinding bowl that is necessary for accelerating transport of the product being ground is calculated as a correlation of the distance to the turning point of the rolling mill for several radii, the frictional value between the grinding rolls and the grinding bowl lining and the rotational speed of the grinding bowl being constant values in calculation.