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. 02, 2010
Filed:
Aug. 07, 2003
Kuniaki Okada, Hiroshima, JP;
Munehiro Ishioka, Hiroshima, JP;
Hitoshi Oishi, Hiroshima, JP;
Tatsuya Shimada, Kanagawa, JP;
Koichi Takashi, Kanagawa, JP;
Yutaka Suzukawa, Tokyo, JP;
Yoshiki Fujii, Kanagawa, JP;
Takamitsu Kusada, Kanagawa, JP;
Kuniaki Okada, Hiroshima, JP;
Munehiro Ishioka, Hiroshima, JP;
Hitoshi Oishi, Hiroshima, JP;
Tatsuya Shimada, Kanagawa, JP;
Koichi Takashi, Kanagawa, JP;
Yutaka Suzukawa, Tokyo, JP;
Yoshiki Fujii, Kanagawa, JP;
Takamitsu Kusada, Kanagawa, JP;
JFE Steel Corporation, Tokyo, JP;
Abstract
A tubular flame burner, a combustion method, and combustion controller, are disclosed. Here, the tubular flame burner comprises: a tubular combustion chamber whose h one end is open; fuel-spraying nozzles and oxygen-containing-gas spraying nozzles. The respective nozzle orifices are formed in the inner face of the combustion chamber so that each spraying direction is in a neighborhood of a tangential direction of the inner circumferential wall of the combustion chamber. And an ignition device is disposed at a position r/2 from the tube axis of the combustion chamber (r: the radius of the combustion chamber). The length of the combustion chamber can be adjusted, the tubular flame burner is a multi-stage burner formed of multiple tubular flame burners, and a gap between the inner tube and the outer tube serves as a gas-flow path. A combustion control method for the tubular flame burner is disclosed, wherein on/off of switching valves is controlled so that the spraying speed from each nozzle is maintained in a predetermined range corresponding to the combustion load.