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Title:
MANUFACTURING METHOD AND PLANT OF PRE-STAGE PRODUCT OF MOLTEN PIG IRON OR MOLTEN STEEL
Document Type and Number:
Japanese Patent JP2001152225
Kind Code:
A
Abstract:

To economically use iron ores partly containing fine ores and the flux by using untreated coal as a carbon carrier in the case of manufacturing pre-stage products of the molten pig iron or molten steel from the charged substances partly containing at least fine ores.

The charged substances are preheated in a turning layer in a preheating zone, and the preheated charged substances are substantially reduced at least in continuously arranged reducing zones. The reduced substances are charged in a fluidized bed and/or fixed bed of a melting gasification furnace, and melted therein. The reducing gas is removed, and further, the charged substances similarly containing the fine ores are reduced and introduced in a process for manufacturing briquette iron to efficiently preheat the charged substances.


Inventors:
Kepplinger, Werner
Matzawrakos, Panajiotis
Schenk, Johannes
Siuka, Dieter
Boehm, Christian
Application Number:
JP2000000322555
Publication Date:
June 05, 2001
Filing Date:
October 21, 1993
Export Citation:
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Assignee:
VOEST-ALPINE INDUSTRIEANLAGENBAU GMBHRESEARCH INST OF INDUSTRIAL SCIENCE & TECHNOLOGY INC FOUNDATIONPO HANG IRON & STEEL CO LTD
International Classes:
C21B13/00; C21B5/00; C21B11/00; C21B11/02; C21B13/14; C22B1/14; F27B1/20; F27B1/21; F27B15/10; F27B15/14; F27D3/10; F27D13/00; (IPC1-7): C21B13/14; C22B1/14
Attorney, Agent or Firm:
青山 葆 (外2名)