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Title:
SOLID REDUCING FURNACE
Document Type and Number:
Japanese Patent JP2013113536
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 one or a plurality of waveguides inserted into the solid reducing furnace to introduce microwaves for heating the briquette, a cooling mechanism which is provided on the outer periphery of each of the waveguides for cooling the waveguides, and a heat insulation refractory material provided on the outer periphery of the cooling mechanism. An end part of the waveguide positioned inside the solid reducing furnace is an open end from which the air or inert gas is released.


Inventors:
SUGIBASHI ATSUSHI
KINOSHITA TAKAHIRO
YAMAZAKI TSUTOMU
MASAKI YOSUKE
TERAMOTO NAOFUMI
UESUGI SACHIHIRO
AOKI RIICHI
WAKAGI AKINORI
Application Number:
JP2011261906A
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; H05B6/62; H05B6/70
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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