Plant and method for the production of cement clinker

US9709331B2 · kind B2 · utility

Assignee

• thyssenkrupp Polysius GmbH · DE

Inventors

• Jochen Altfeld · Münster, DE
• Ralf Osburg · Beckum, DE
• Tobias Klegraf · Schwäbisch Hall, DE
• Christoph Beyer · Hachenburg, DE
• Markus Mohr · Ulmen, DE
• Karl Lampe · Ennigerloh, DE
• Sebastian Frie · Hachenburg, DE

Key dates

• Filing date: Oct 30, 2006
• Grant date: Jul 18, 2017
• Expiry date: Sep 7, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B7/434
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a plant and to a method for the production of cement clinker from cement raw meal, the cement raw meal being preheated in a preheating zone, precalcined in a calcining zone, completely burned in a sintering combustion zone and cooled in a cooling zone, solid fuels additionally being burned in an additional combustion region, a firing region being used in the additional combustion region, the solid fuel being introduced into the firing region where it forms a fuel bed over which a supplied oxygen-containing gas flows, the resulting combustion products being removed via a discharge opening and being used in the production of cement clinker. The fuel is supplied via a conveyor device arranged outside the firing region, in such a manner that it moves the fuel bed that is present in the direction towards the discharge opening.