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Title:
METHOD OF MANUFACTURING SINTERED ORE
Document Type and Number:
Japanese Patent JP2013221164
Kind Code:
A
Abstract:

To enhance productivity compared with a prior art, in a method of enhancing the productivity by causing a solid combustible concentration in a sintering raw material to segregate.

In an method of manufacturing a sintered ore, a sintered ore is manufactured by forming a raw material layer with a lower layer and a surface layer separated each other, on a palette of a Dwight Lloyd type sintering machine, and by making the concentration of a solid combustible in the lower layer get lower than the concentration of the solid combustible in the surface layer. In the method, (i-1) the surface layer includes at least a layer ranging over from a surface of the surface layer up to 25 mm under the surface, and (ii-1) the concentration of the solid combustible in the surface layer is 4.0-5.5 mass%, and the concentration of the solid combustible in the lower layer is 3.0-3.3 mass%, or (ii-2) the concentration of the solid combustible in the surface layer is more than 5.5 mass%, and the concentration of the solid combustible in the lower layer is 2.5-3.5 mass%.


Inventors:
TAJIMA JUNICHI
SUZUKI ATSUSHI
YATSUGAYO KENICHI
OSADA JUNJI
SAKAGAMI HIROAKI
TOKI MASAHIRO
Application Number:
JP2012092023A
Publication Date:
October 28, 2013
Filing Date:
April 13, 2012
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
International Classes:
C22B1/20
Domestic Patent References:
JPS553405A1980-01-11
JPS61127827A1986-06-16
JP2000256757A2000-09-19
JP2000328148A2000-11-28
JPH0873951A1996-03-19
JP2002121620A2002-04-26
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nakamura Asayuki
Nagasaka Tomoyasu