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. 11, 2017
Filed:
Jan. 22, 2013
Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;
Kenta Haari, Tokyo, JP;
Osamu Shinada, Tokyo, JP;
Yasunari Shibata, Tokyo, JP;
Yuichiro Kitagawa, Tokyo, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
An object is to prevent blockage of a slag hole with char and slag, enabling stable operation of a gasification furnace. In a configuration in which a heat exchanger () is provided above a coal gasification portion (), the diameters (D, D) of the slag hole () and the throat portion () are set to three times or more the pitch (ST) of rows of heat exchange tubes (). By doing so, blockage of the slag hole () or the throat portion () with char and a sintered material () falling from the heat exchanger () is prevented, enabling stable operation of a coal gasification furnace ().