EP 0070526 A1 19830126 - Operation of a top-and-bottom blown converter and a lance used therefor.
Title (en)
Operation of a top-and-bottom blown converter and a lance used therefor.
Title (de)
Verfahren zum Betrieben eines Auf- und Durchblaskonverters und Lanze hierfür.
Title (fr)
Procédé d'opération pour un convertisseur à soufflage par le haut et par le fond et une lance à cette fin.
Publication
Application
Priority
JP 11200381 A 19810717
Abstract (en)
In the operation of a top-and-bottom blown converter top-blowing oxygen gas is blown such that the center of a hot spot created by the oxygen gas jet from each of the nozzles of a top-blowing multi-nozzle lance is positioned outside a bubbling region of the molten metal surface which rising bubbles of gas from bottom-blowing tuyeres reach.
IPC 1-7
IPC 8 full level
CPC (source: EP)
C21C 5/35 (2013.01)
Citation (search report)
- [Y] DE 3019899 A1 19801204 - SUMITOMO METAL IND
- [YP] FR 2476678 A1 19810828 - SIDERURGIE FSE INST RECH [FR]
- [AP] WO 8201012 A1 19820401 - KAWASAKI STEEL CO [JP], et al
- [A] DE 2131345 A1 19720113 - CENTRO SPERIMENTALE METALLURGICO SPA
- [A] PATENT ABSTRACTS OF JAPAN, Vol. 4, No. 101, 19 July 1980, page 161C19; & JP-A-55 065 313
- [A] PATENT ABSTRACTS OF JAPAN, Vol. 4, No. 140, 3 October 1980, page 161C26; & JP-A-55 091 912
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 0070526 A1 19830126; EP 0070526 B1 19870408; DE 3276008 D1 19870514; JP S5816013 A 19830129
DOCDB simple family (application)
EP 82106377 A 19820715; DE 3276008 T 19820715; JP 11200381 A 19810717