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:
Feb. 14, 2012
Filed:
Sep. 22, 2009
Yoshiaki Komatsu, Tokyo, JP;
Michio Ishizaki, Tokyo, JP;
Hirokazu Shima, Ibaraki, JP;
Hiroyuki Matsuda, Fukuoka, JP;
Yoshiaki Komatsu, Tokyo, JP;
Michio Ishizaki, Tokyo, JP;
Hirokazu Shima, Ibaraki, JP;
Hiroyuki Matsuda, Fukuoka, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
Method and system for a cement burning facility. When exhaust gas in a part of a preheater or a kiln inlet of a cement kiln is extracted, a cement material is dispersed. The dispersed amount of the cement material is adjusted to maintain the temperature of the extracted gas between 950° C. and 1,150° C. The extracted gas is cooled to at most the melting point of a chlorine compound. A solid-gas separation device adjusts classification particle size to between 15 μm and 30 μm. A dust trap removes fine powder dust with a particle size equal to or smaller than the classification particle size. The amount of fine powder dust collected by the dust trap is maintained between 50 g/mN and 150 g/mN, with the concentration of chlorine in the collected fine powder dust set to between 5% and 20%.