Title:
OPERATING METHOD AND DEVICE FOR A SHAFT FURNACE
Document Type and Number:
WIPO Patent Application WO1998021536
Kind Code:
A3
Abstract:
A method for operating a blast furnace includes feeding metallic charge materials, alloy elements and energy carriers in the upper part of the furnace shaft. An oxidizing agent is fed in the lower part of the shaft. Filler material, namely, alloy elements, metal chips, carbon, sands, dust are fed individually or in combination into the melting zone in at least one burst jet. Fuels may be introduced additionally into the first jet. The oxygen is fed at a high speed into the melting zone in at least one separate jet and the conditions of introducing the materials in the first jet and the oxygen in the second jet are controlled so that no flame can be formed.
Inventors:
HAMBERGER RALF (DE)
SCHMIDT JUERGEN (DE)
VON HOESSLIN GERHARD (DE)
SCHMIDT JUERGEN (DE)
VON HOESSLIN GERHARD (DE)
Application Number:
PCT/EP1997/005906
Publication Date:
October 29, 1998
Filing Date:
October 25, 1997
Export Citation:
Assignee:
MESSER GRIESHEIM GMBH (DE)
HAMBERGER RALF (DE)
SCHMIDT JUERGEN (DE)
VON HOESSLIN GERHARD (DE)
HAMBERGER RALF (DE)
SCHMIDT JUERGEN (DE)
VON HOESSLIN GERHARD (DE)
International Classes:
C21B5/02; F27B1/16; F27B1/20; (IPC1-7): F27B1/16; F27B1/10; C21B5/02
Domestic Patent References:
| WO1994020642A1 | 1994-09-15 | |||
| WO1986005520A1 | 1986-09-25 |
Foreign References:
| FR2070864A1 | 1971-09-17 | |||
| FR1259738A | 1961-04-28 | |||
| DE19648306A1 | 1997-06-26 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 016, no. 383 (C - 0974) 17 August 1992 (1992-08-17)
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