Roll mill for milling coal

US4432500A · kind A · utility

Assignee

• LOESCHE GMBH · DE

Inventors

• Horst Brundiek
• Ludwig Werner · Düsseldorf, DE

Key dates

• Filing date: Dec 22, 1981
• Grant date: Feb 21, 1984
• Expiry date: Dec 22, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B02C15/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A roll mill, more specially for coal, has a turning pan and a number of rolls running thereon for producing a milling effect. Each roll is supported on a rocker arm, able to be turned about a horizontal axis which is roughly tangential to the pan. The rocker arm and the roll on it are forced down against the pan by a hydraulic cylinder joined with a fork which, in turn, is joined with the rocker arm for turning it about the turnpin. The fork may be unjoined from the rocker arm for upkeep work on the roll. Each rocker arm has a gas-tight cover structure which is part of the casing of the mill.