EP 0436718 A4 19891228 - METHOD OF CHARGING ORE IN MELT-REDUCTION.
Title (en)
METHOD OF CHARGING ORE IN MELT-REDUCTION.
Title (de)
VERFAHREN ZUM ERZCHARGIEREN BEI DER SCHMELZREDUKTION.
Title (fr)
PROCEDE DE CHARGEMENT DE MINERAIS PENDANT UNE ETAPE DE REDUCTION EN FUSION.
Publication
Application
Priority
- JP 2047288 A 19880129
- JP 8800911 W 19880909
- JP 22525387 A 19870910
Abstract (en)
[origin: EP0436718A1] This invention relates to a method of preventing, during the melt-reduction of Cr ore or iron ore, the scatter loss of the ore and coal at the time of charging. In the present invention, the ore and coal are charged down into a furnace from a shoot extended near a furnace port or connected to a furnace body. The ore and coal are charged down into the furnace while a gas is jetted outward of the shoot form nozzles disposed in the circumferential direction inside and near the tip of the shoot so that the raw materials can be charged more effectively while reducing the scatter loss.
IPC 1-7
IPC 8 full level
C21B 13/00 (2006.01); C21C 5/00 (2006.01); C21C 5/35 (2006.01); C22B 5/10 (2006.01); C22B 34/32 (2006.01); C22C 33/04 (2006.01); F27D 3/00 (2006.01); F27D 3/10 (2006.01); F27B 3/08 (2006.01); F27D 3/16 (2006.01); F27D 99/00 (2010.01)
CPC (source: EP US)
C21B 13/0006 (2013.01 - EP); C21C 5/005 (2013.01 - EP); C21C 5/35 (2013.01 - EP); C22B 5/10 (2013.01 - EP); C22B 34/32 (2013.01 - EP US); F27D 3/0025 (2013.01 - EP); F27D 3/10 (2013.01 - EP); F27B 3/085 (2013.01 - EP); F27D 3/16 (2013.01 - EP); F27D 99/0075 (2013.01 - EP); F27M 2001/16 (2013.01 - EP)
Citation (search report)
- [X] EP 0079182 A1 19830518 - BRITISH STEEL CORP [GB]
- [Y] US 4541866 A 19850917 - MEYER THOMAS N [US]
- [A] US 2784037 A 19570305 - ALFRED REXROTH
- [A] US 3462263 A 19690819 - WALSH JOHN H, et al
- [X] PATENT ABSTRACTS OF JAPAN, vol. 11, no. 139 (C-420)[2586], 7th May 1987; & JP-A-61 279 609 (SUMITOMO METAL IND. LTD) 10-12-1986
- [Y] PATENT ABSTRACTS OF JAPAN, vol. 11, no. 232 (C-437)[2679], 29th July 1987; & JP-A-62 044 533 (KAWASAKI STEEL CORP.) 26-02-1987
- [A] PATENT ABSTRACTS OF JAPAN, vol. 6, no. 244 (C-138)[1122], 2nd December 1982; & JP-A-57 143 419 (SHIN NIPPON SEITETSU K.K.) 04-09-1982
- See references of WO 8902477A1
Designated contracting state (EPC)
AT BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0436718 A1 19910717; EP 0436718 A4 19891228; EP 0436718 B1 19940706; AU 2305588 A 19890417; AU 620344 B2 19920220
DOCDB simple family (application)
EP 88907777 A 19880909; AU 2305588 A 19880909