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Title:
SOLID REDUCING FURNACE
Document Type and Number:
Japanese Patent JP2013113537
Kind Code:
A
Abstract:

To provide a solid reducing furnace capable of efficiently radiating microwaves to the inside of the solid reducing furnace.

In the solid reducing furnace, a briquette is formed by mixing iron oxide raw material with reducing material and is heated by radiation heat from a burner and a furnace wall to manufacture reduced iron. The solid reducing furnace includes a burner heating area for heating the briquette by utilizing radiation heat from the burner and the furnace wall, and a microwave heating area for heating the briquette with the microwave irradiated to the briquette. The microwave heating area includes one or a plurality of waveguides inserted into the solid reducing furnace for introducing microwaves to heat the briquette. The height of a ceiling of the solid reducing furnace in the microwave heating area is lower than the height of the ceiling of the solid reducing furnace in the burner heating area.


Inventors:
SUGIBASHI ATSUSHI
KINOSHITA TAKAHIRO
YAMAZAKI TSUTOMU
MASAKI YOSUKE
TERAMOTO NAOFUMI
UESUGI SACHIHIRO
AOKI RIICHI
WAKAGI AKINORI
Application Number:
JP2011261908A
Publication Date:
June 10, 2013
Filing Date:
November 30, 2011
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
International Classes:
F27B9/16; C21B13/10; F27D11/12; H05B6/80
Domestic Patent References:
JPH06116616A1994-04-26
JP2010222667A2010-10-07
JPH06116616A1994-04-26
JP2010222667A2010-10-07
Foreign References:
WO2008051356A22008-05-02
WO2008051356A22008-05-02
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto



 
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