EP 0473809 B1 19930811 - DIRECT-CURRENT ARC FURNACE
Title (en)
DIRECT-CURRENT ARC FURNACE
Publication
Application
Priority
EP 90116866 A 19900903
Abstract (en)
[origin: EP0473809A1] In a direct-current arc furnace, the arc is deflected under the influence of the high-current lines (18), which run below the furnace vessel, in the direction away from the power supply device (19). This leads to thermal overloading of a part of the furnace vessel wall. If the lining layers are constructed such that, in a first sector (21) which opens towards the power supply device (19), they are formed from a material having a lower specific conductivity than the lining layer in the second sector (22), the arc burns symmetrically again. A lining layer which is inhomogeneous in this sense can furthermore be used for deliberate deflection of the arc. <IMAGE>
IPC 1-7
IPC 8 full level
F27B 3/08 (2006.01); F27B 3/14 (2006.01); F27D 11/10 (2006.01); H05B 7/02 (2006.01); H05B 7/06 (2006.01); H05B 7/18 (2006.01)
CPC (source: EP KR US)
F27D 11/10 (2013.01 - EP US); H05B 7/00 (2013.01 - KR); H05B 7/06 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0473809 A1 19920311; EP 0473809 B1 19930811; AT E93114 T1 19930815; BR 9103756 A 19920519; CA 2049853 A1 19920304; CN 1027314 C 19950104; CN 1059594 A 19920318; DE 59002344 D1 19930916; ES 2044352 T3 19940101; JP H04233191 A 19920821; KR 920007498 A 19920428; RU 2013730 C1 19940530; US 5237585 A 19930817; ZA 916844 B 19920527
DOCDB simple family (application)
EP 90116866 A 19900903; AT 90116866 T 19900903; BR 9103756 A 19910830; CA 2049853 A 19910826; CN 91108582 A 19910902; DE 59002344 T 19900903; ES 90116866 T 19900903; JP 22135591 A 19910902; KR 910015354 A 19910903; SU 5001250 A 19910821; US 74886691 A 19910823; ZA 916844 A 19910829