Title:
【発明の名称】微粒の鉄鉱石の粘着を防止する流動床反応器及びこれを利用した還元方法
Document Type and Number:
Japanese Patent JP2003518194
Kind Code:
A
Abstract:
A smelting reduction apparatus which separates exhaust gas, which is exhausted from a melter-gasifier or a fluidized bed reactor, into dusts and reducing gas to supply them to each fluidized bed reactor respectively is disclosed, in which the smelting reduction apparatus includes a three-stage type fluidized bed reactor, a melter-gasifier for manufacturing molten pig iron by finally reducing the fine iron ores of which reaction is finished in a final fluidized bed reactor, and a dust separating device, which performs separation of exhausted gas from the melter-gasifier into dusts and reducing gas, so as to supply the separated reducing gas to a lower part of the final fluidized bed reactor, dusts having a larger particle sizes in the separated dusts to the melter-gasifier again, and fine dusts having a smaller particle sizes in the separated dusts to an upper part of a gas distributor of the final fluidized bed reactor.
More Like This:
Inventors:
Choi, Nag-June
John, Sun-Kwan
Kim, Han-Goo
Kang, Hyun-Won
Hausenberger, Franz
John, Sun-Kwan
Kim, Han-Goo
Kang, Hyun-Won
Hausenberger, Franz
Application Number:
JP2001546973A
Publication Date:
June 03, 2003
Filing Date:
December 20, 2000
Export Citation:
Assignee:
Pohang Iron and Steel Company Limited
Research Institute of Industrial Science and Technology
Research Institute of Industrial Science and Technology
International Classes:
C21B13/00; C21B13/14; C22B5/14; F27B15/02; F27B15/08; F27B15/09; F27B15/10; F27B15/12; F27B15/18; F27D17/00; (IPC1-7): C21B13/00; C21B13/14; F27B15/02; F27B15/08; F27B15/09; F27B15/10; F27B15/12; F27B15/18; F27D17/00
Attorney, Agent or Firm:
Hiroshi Arafune (1 person outside)