Title:
SUPPORT FRAME STRUCTURE FOR SUPPORTING DISPERSION PLATE IN FLUID LAYER REDUCTION FURNACE FOR REDUCTION OF IRON ORE
Document Type and Number:
WIPO Patent Application WO/2005/108628
Kind Code:
A1
Abstract:
Column structure for supporting a distribution plate in a fluidized bed reduction furnace for reducing iron ore powder, wherein bands of stainless steel (14) are partially placed on an outside surface of, and fastened to, columns (12) that support a distribution plate in an inside space of a body of the fluidized bed reduction furnace (1), so that the columns (12) have a good chemical resistance, a good thermal impact resistance, and a good abrasion resistance against reductive gas and iron ore powder in the reductive gas when the iron ore powder is reduced by a fluidized bed reaction in the fluidized bed re-duction furnace (1). For this, the column structure for supporting a distribution plate in a fluidized bed reduction furnace (1) for reducing iron ore powder comprising a body having a gas supply opening (11a) in a lower portion for receiving a reductive gas, columns (12) in an inside space of the body each constructed of blocks of refractory, and a distribution plate supported on the columns (12) uniformly having a plurality of pass through holes (13a), wherein each of the columns (12) includes a plurality of stainless steel bands (14) placed on an outside circumference thereof.
Inventors:
CHOI DO MUN (KR)
Application Number:
PCT/KR2005/000153
Publication Date:
November 17, 2005
Filing Date:
January 17, 2005
Export Citation:
Assignee:
CHOSUN REFRACTORIES CO LTD (KR)
CHOI DO MUN (KR)
CHOI DO MUN (KR)
International Classes:
C21B13/00; C21B13/04; F27B15/02; F27B15/06; F27B15/10; (IPC1-7): C21B13/04
Foreign References:
| EP0404641A1 | 1990-12-27 | |||
| EP0444614A2 | 1991-09-04 | |||
| US5904119A | 1999-05-18 |
Attorney, Agent or Firm:
Bahng, Hae Cheol (15th Floor Yo Sam Building 648-23, Yeoksam-don, Kangnam-gu Seoul 135-080, KR)
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