Method of burning or sintering fine-grain material

US3932117A · kind A · utility

Assignee

• Polysius AG

Inventor

• Horst Ritzmann · Enniger, DE

Key dates

• Filing date: Sep 19, 1974
• Grant date: Jan 13, 1976
• Expiry date: Sep 19, 1994

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F27D13/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of burning or sintering fine-grain material which agglomerates above a critical temperature, such as cement raw meal, lime, dolomite, magnesite, in which the material is first preheated in a first zone, then flame heated in a second zone to a final treatment temperature and thereafter separated in a third zone from the hot exhaust gases of the second zone, the exhaust gases of the second zone being used for preheating the material in the first zone.