Global Patent Index - EP 1060273 A1

EP 1060273 A1 2000-12-20 - 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

EP 1060273 A1 (EN)

Application

EP 98961657 A

Priority

KR 9800451 W

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 (main, further and additional classification)

C21B 13/00

IPC 8 full level (invention and additional information)

C21B 13/00 (2006.01); F27B 15/08 (2006.01); F27B 15/09 (2006.01); F27D 7/02 (2006.01)

CPC (invention and additional information)

C21B 13/0033 (2013.01); Y02P 10/136 (2015.11)

Citation (search report)

See references of WO 0037687A1

Designated contracting state (EPC)

AT DE GB IT LU SE

EPO simple patent family

WO 0037687 A1 20000629; AU 1693499 A 20000712; CA 2322130 A1 20000629; EP 1060273 A1 20001220; JP 2002533642 A 20021008

INPADOC legal status


2002-10-09 [18R] REFUSED

- Effective date: 20020516

2002-01-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20011116

2001-12-19 [RIN1] INVENTOR (CORRECTION)

- Inventor name: KIM, HANG GOO, RES. INST. OF IND. SCIENCE & TECHN.

2001-12-19 [RIN1] INVENTOR (CORRECTION)

- Inventor name: LEE, IL OCK, RES. INST. OF IND. SCIENCE & TECHN.

2001-12-19 [RIN1] INVENTOR (CORRECTION)

- Inventor name: KANG, HEUNG WON, RES. INST. IND. SCIENCE & TECHN.

2001-12-19 [RIN1] INVENTOR (CORRECTION)

- Inventor name: JEONG, SUN KWANG, RES. INST. IND. SCIENCE & TECH.

2000-12-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000825

2000-12-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT DE GB IT LU SE