Title:
【発明の名称】複合流動層型微粉鉄鉱石還元装置、及びそのための方法
Document Type and Number:
Japanese Patent JP2002533642
Kind Code:
A
Abstract:
A complex fluidized bed type apparatus for reducing a fine iron ore, and a method therefor, are disclosed in which the reactivity of the fine iron ore particles, the gas utilization degree and the gas consumption rate are most efficiently, thereby reducing a fine iron ore of a wide particle size distribution in an optimal manner. The apparatus includes first (100) and second (200) fluidized bed furnaces and a cyclone (300), with a gas distributor being installed in the lower portion of each of the furnaces (102, 202). The fine iron ore is separated into coarse and medium/fine iron ore particles within the first fluidized bed furnace (100) which is installed within a freeboard zone within the second fluidized bed furnace (200). A second iron ore discharging hole (105) is connected through a conduit (106) into a lower portion of the second fluidized bed furnace (200). The cyclone (300) is connected from its bottom through a conduit (305) into the lower portion of the second fluidized bed furnace (200).
Inventors:
Kim Han Go
Lee Ok
Kang Hae Won
Jeon Sun Kang
Lee Ok
Kang Hae Won
Jeon Sun Kang
Application Number:
JP2000589740A
Publication Date:
October 08, 2002
Filing Date:
December 22, 1998
Export Citation:
Assignee:
Pohang Iron and Steel Shio., Eltidi.
Research Institute of Industrial Science and Technology
Forest-Arpine Industrie en Lagenbao Game Behr
Research Institute of Industrial Science and Technology
Forest-Arpine Industrie en Lagenbao Game Behr
International Classes:
C21B13/00; F27B15/08; F27B15/09; F27D7/02; (IPC1-7): F27B15/09; C21B13/00; F27B15/08; F27D7/02
Attorney, Agent or Firm:
Mikio Yoshimiya