The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 2015
Filed:
Aug. 12, 2010
Robert Mathai, Olomouc-Nové Sady, CZ;
Robert Mathai, Olomouc-Nové Sady, CZ;
KHD Humboldt Wedag GmbH, Koeln, DE;
Abstract
A method of producing cement clinker including the steps of preheating raw meal comprising calcium carbonate in a preheating stage that is preheated by the exhaust gases of a sintering stage connected downstream in the direction of the gas flow, neutralizing the preheated raw meal, sintering the raw meal into cement clinker in a sintering stage, and cooling the cement clinker from the sintering stage in a cooling stage that cools the cement clinker with a gas. The exhaust gases of the sintering stage are combined with the exhaust gases of the neutralization, and the combined exhaust gases are conducted in an open gas circuit. The CO2 emissions are substantially reduced over known systems with CO separation, and the formation of nitrogen oxides by the combustion of atmospheric nitrogen in the oxidative environment of the sintering stage burner is almost completely prevented.