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. 29, 2014
Filed:
Nov. 02, 2010
Applicants:
Terutoshi Uchida, Tokyo, JP;
Toru Ishii, Tokyo, JP;
Toshihiko Yamada, Tokyo, JP;
Shuzo Watanabe, Tokyo, JP;
Yoshiyuki Iso, Tokyo, JP;
Inventors:
Terutoshi Uchida, Tokyo, JP;
Toru Ishii, Tokyo, JP;
Toshihiko Yamada, Tokyo, JP;
Shuzo Watanabe, Tokyo, JP;
Yoshiyuki Iso, Tokyo, JP;
Assignee:
IHI Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23B 80/02 (2006.01); F23C 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an oxygen mixer for an oxygen combustion boiler, circulating exhaust gas heated in a rotary preheater is mixed with oxygen. Resultant mixed gas is guided to a boiler furnace through a combustion gas duct having bends. At the bend closest to the rotary preheater in the combustion gas duct, an oxygen injection nozzle is arranged to have a plurality of injection ports for injection of oxygen into circulating exhaust gas.