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:
May. 29, 2001
Filed:
Mar. 19, 1998
Toshikazu Tsumura, Kure, JP;
Kenji Kiyama, Kure, JP;
Tadashi Jimbo, Kure, JP;
Shigeki Morita, Hiroshima, JP;
Koji Kuramashi, Kure, JP;
Kunio Okiura, Kure, JP;
Shinichiro Nomura, Kure, JP;
Miki Mori, Kure, JP;
Noriyuki Ohyatsu, Kure, JP;
Noboru Takarayama, Kure, JP;
Toshihiko Mine, Kure, JP;
Hironobu Kobayashi, Hitachi, JP;
Hirofumi Okazaki, Hitachi, JP;
Babcock-Hitachi Kabushiki Kaisha, Tokyo, JP;
Abstract
A combustion burner includes a mixture nozzle (,) defining a mixture fluid passage through which a mixture fluid (,) containing pulverized coal and conveyor gas flows toward a furnace, secondary and tertiary air passages surrounding the mixture nozzle (,), through which secondary air (,) and tertiary air (,) for combustion purposes flow, respectively; and air injection nozzles (,) provided in the vicinity of an outer periphery of a distal end of the mixture nozzle (,). The air (,) is injected from the air injection nozzles (,) toward the axis of the mixture nozzle, so that the high-temperature gas in the vicinity of the outer periphery of the distal end of the mixture nozzle (,) is drawn into the mixture fluid (,) in the vicinity of the outer periphery of this distal end.