EP 1060273 A1 20001220 - COMPLEX FLUIDIZED BED TYPE FINE IRON ORE REDUCING APPARATUS, AND METHOD THEREFOR
Title (en)
COMPLEX FLUIDIZED BED TYPE FINE IRON ORE REDUCING APPARATUS, AND METHOD THEREFOR
Title (de)
VERFAHREN UND VORRICHTUNG DES TYPS EINES KOMPLEXEN FLUIDATBETTES ZUR REDUKTION VON FEINEM EISENERZ
Title (fr)
APPAREIL ET PROCEDE DE REDUCTION DE MINERAI DE FER FIN, DU TYPE A LIT FLUIDISE COMPLEXE
Publication
Application
Priority
KR 9800451 W 19981222
Abstract (en)
[origin: WO0037687A1] 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).
IPC 1-7
IPC 8 full level
C21B 13/00 (2006.01); F27B 15/08 (2006.01); F27B 15/09 (2006.01); F27D 7/02 (2006.01)
CPC (source: EP)
C21B 13/0033 (2013.01); Y02P 10/134 (2015.11)
Citation (search report)
See references of WO 0037687A1
Designated contracting state (EPC)
AT DE GB IT LU SE
DOCDB simple family (publication)
WO 0037687 A1 20000629; AU 1693499 A 20000712; CA 2322130 A1 20000629; EP 1060273 A1 20001220; JP 2002533642 A 20021008
DOCDB simple family (application)
KR 9800451 W 19981222; AU 1693499 A 19981222; CA 2322130 A 19981222; EP 98961657 A 19981222; JP 2000589740 A 19981222