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:
Jul. 22, 2003
Filed:
May. 03, 2000
Hubert Ramesohl, Bergisch Gladbach, DE;
KHD Humboldt Wedag AG, Cologne, DE;
Abstract
To create a calcinator for a cement clinker production line which is connected to the rotary tubular kiln in series and which is equipped with double firings, in which it is possible expediently to dispose of lumpy combustibles such as unchipped used tires and/or other lumpy secondary combustibles by pyrolysis or potentially by combustion for the purpose of the high-grade calcination of the cement raw meal, without the pyrolysis process interfering with the calcination process, while simultaneously ensuring an exhaust gas having low NO emissions, it is inventively proposed to slide the lumpy fuel such as old tires onto a displacement mechanism such as a grate that is transversely disposed in an additional tertiary air channel in the area of the junction with the exhaust gas channel of the rotary kiln, the lumpy fuel being pyrolized or burned on this mechanism with the aid of a tertiary air substream whose volume can be regulated, and the residue of the pyrolysis or combustion being pushed from said displacement mechanism into the rotary kiln exhaust gas channel, into which channel the CO-laden pyrolysis gas, or respectively, smoke gas that is generated is also fed.