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. 24, 2015
Filed:
Jun. 13, 2011
Makoto Takafuji, Kawasaki, JP;
Makoto Takafuji, Kawasaki, JP;
IHI CORPORATION, , JP;
Abstract
In the gasification furnace raw material supplying apparatus, the protective gas () is jetted toward the fluidized bed () formed in the fluidized bed gasification furnace () from an end portion on the downstream side (B) of the screw feeder () in the raw material supplying direction using the nozzle () in the screw shaft (). In addition, the protective gas () is jetted toward the fluidized bed () from the periphery of the end portion on the downstream side (B) of the screw feeder () in the raw material supplying direction using the nozzles () provided at the furnace wall () of the fluidized bed gasification furnace (). As a result, the end portion of the screw shaft () on the downstream side (B) in the raw material supplying direction is prevented from being exposed to the bed material which is a component of the fluidized bed (), and abrasion of the front end portion of the screw can be suppressed.