Title:
【発明の名称】鉄鉱石直接還元製錬炉用石炭団粒塊製造方法
Document Type and Number:
Japanese Patent JP2891384
Kind Code:
B2
Abstract:
PCT No. PCT/KR96/00251 Sec. 371 Date Aug. 28, 1997 Sec. 102(e) Date Aug. 28, 1997 PCT Filed Dec. 27, 1996 PCT Pub. No. WO97/24414 PCT Pub. Date Jul. 10, 1997A method for manufacturing coal agglomerates for use in a direct smelting reducing furnace is disclosed, in which a fine coal is agglomerated at a high temperature in a simple manner, or anthracite or low free swelling coal having a low free swelling index is mixed with the fine coal, and the mixture is agglomerated at a high temperature, thereby turning the low quality coal to useful purpose. The present invention is characterized in that a fine coal having a free swelling index of 3.0 or more and a particle size of 8 mm or less, or the fine coal mixed with 70 weight % of anthracite or a low free swelling coal, is maintained at 600 DEG C. or over for 5 minutes or more, thereby manufacturing coal agglomerates for use in a direct smelting reducing furnace.
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Inventors:
JUNGU YONGU CHAE
RII DARU HOI
CHOO MIN YONGU
RII DARU HOI
CHOO MIN YONGU
Application Number:
JP52423197A
Publication Date:
May 17, 1999
Filing Date:
December 27, 1996
Export Citation:
Assignee:
HOHANGU AIRON ANDO SUTEIIRU CO LTD
RISAACHI INST OBU IND SAIENSU ANDO TEKUNOROJII
BOESUTO ARUPAIN IND ANRAAGENBAU GMBH
RISAACHI INST OBU IND SAIENSU ANDO TEKUNOROJII
BOESUTO ARUPAIN IND ANRAAGENBAU GMBH
International Classes:
C10B53/00; C10L5/02; C10L5/06; C10L5/04; C10L9/08; C21B13/00; (IPC1-7): C10L9/08; C10L5/02
Attorney, Agent or Firm:
Takahashi Masahisa