Plant and method for the production of cement clinker from cement raw material

US8021479B2 · kind B2 · utility

Assignee

• Polysius AG

Inventors

• Markus Mohr · Ulmen, DE
• Christoph Beyer · Hachenburg, DE

Key dates

• Filing date: Aug 25, 2006
• Grant date: Sep 20, 2011
• Expiry date: Oct 30, 2028

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F27D17/102
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a device and a method for producing clinker from raw cement material. The raw cement material is preheated in a preheater, is precalcined in a calcining apparatus, is completely burned in a sintering furnace, and is finally cooled in a cooler. Tertiary air of the cooler is fed to the calcining apparatus while eliminated dust is thermally treated in a dust burning reactor with the aid of combustion air and fuel. At least some of the tertiary air is fed to the dust burning reactor as combustion air while the dust that is to be treated and the combustion air penetrate the dust burning reactor in the same direction of flow.