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Patent Searching and Data


Title:
PRELIMINARILY REDUCING FURNACE
Document Type and Number:
Japanese Patent JPH11131118
Kind Code:
A
Abstract:

To provide a preliminarily reducing furnace for preventing the clogging of a dispersion plate nozzle and conducting the continuous operation by holding the temp. in a fluidized bed for preliminary reduction to a desired temp. without raising the inlet gas temp.

This furnace is provided with a preliminary reduction chamber 2 positioned on the upper side of the furnace main body partitioned into the upper and the lower parts with the dispersion plate 7 and forming the fluidized bed 10, a wind-box 9 positioned on the lower side of the furnace main body and flowing a reducing gas into the fluidized bed through the dispersion plate 7, an ore supplying pipe 11 and an ore ejecting pipe 12 fitted to the chamber 2 and oxygen blowing pipe 13 for blowing the gas containing the oxygen into the fluidized bed.


Inventors:
ISOZAKI SHINICHI
WATABE MASAYUKI
YAMANAKA MITSUHIRO
SEKIGUCHI TAKESHI
TAGUCHI NORIHIKO
KAWAKAMI MASAHIRO
IWASAKI KATSUHIRO
Application Number:
JP30052497A
Publication Date:
May 18, 1999
Filing Date:
October 31, 1997
Export Citation:
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Assignee:
NIPPON KOKAN KK
International Classes:
C21B11/00; C21B13/00; F27D13/00; (IPC1-7): C21B13/00; C21B11/00; F27D13/00
Attorney, Agent or Firm:
Takehiko Suzue (4 outside)