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. 07, 2019
Filed:
Jun. 07, 2010
Keigo Matsumoto, Tokyo, JP;
Koutaro Fujimura, Tokyo, JP;
Kazuhiro Domoto, Tokyo, JP;
Toshimitsu Ichinose, Tokyo, JP;
Naofumi Abe, Tokyo, JP;
Jun Kasai, Tokyo, JP;
Keigo Matsumoto, Tokyo, JP;
Koutaro Fujimura, Tokyo, JP;
Kazuhiro Domoto, Tokyo, JP;
Toshimitsu Ichinose, Tokyo, JP;
Naofumi Abe, Tokyo, JP;
Jun Kasai, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A solid-fuel-fired burner that suppresses a high-temperature oxygen remaining region formed at the outer circumference of a flame and that can decrease the amount of NOx eventually produced is provided. A solid-fuel-fired burner that is used in a burner section of a solid-fuel-fired boiler for performing low-NOx combustion separately in the burner section and in an additional-air injection section and that injects powdered solid-fuel and air into a furnace includes a fuel burner having internal flame stabilization and a secondary-air injection port that does not perform flame stabilization, in which the air ratio in the fuel burner is set to 0.85 or more.