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:
Nov. 06, 2012
Filed:
Nov. 05, 2007
Ryuhei Takashima, Nagasaki-ken, JP;
Koutaro Fujimura, Nagasaki-ken, JP;
Munehiro Kakimi, Nagasaki-ken, JP;
Iwamaro Amano, Nagasaki-ken, JP;
Toshihiro Hirata, Nagasaki-ken, JP;
Ryuhei Takashima, Nagasaki-ken, JP;
Koutaro Fujimura, Nagasaki-ken, JP;
Munehiro Kakimi, Nagasaki-ken, JP;
Iwamaro Amano, Nagasaki-ken, JP;
Toshihiro Hirata, Nagasaki-ken, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
To provide a burner structure that is capable of efficiently cooling a nozzle main body with a small amount of air, and takes an efficient countermeasure against a falling clinker or radiation heat. The burner structure includes: a pulverized coal-air mixture path provided in a burner central portion and supplying a mixture of a fuel and a primary air; a secondary air path provided around the pulverized coal-air mixture path and supplying a secondary air; a cooling air path provided around or above and below the secondary air path and supplying a cooling air; a nozzle main body attached to furnace-side end portions of the pulverized coal-air mixture path and the secondary air path in a tiltable form and provided with a flame holder at its tip end; and a cooling air nozzle attached to a furnace-side end portion of the cooling air path in a tiltable form.