EP 2025431 A1 20090218 - Device for metal refining in the pony ladle
Title (en)
Device for metal refining in the pony ladle
Title (de)
Vorrichtung zur Metallverfeinerung im Zwischengefäß
Title (fr)
Dispositif d'affinage métallique dans la poche panière
Publication
Application
Priority
EA 200702122 A 20070817
Abstract (en)
The invention relates to ferrous metallurgy, in particular to devices for steel refining by rare gas in a pony ladle. The device for metal refining in the pony ladle containing tuyere placed axially to a flow of effluent metal and done in such a way as to allow creation of rare gas bubbles flow is directed to guarantee maximum outlet of inclusions to refinery slag. For the purpose of resisting whirl metal movement occurring above nonswirl nozzle the inner surface of the receiving cone of the device is configured in the form of rectangular prism converting to truncated cone and creation of rare gas bubbles flow is provided by a porous refractory insert placed in the body of tuyere in such a way that the form thereof in cross section duplicates the form of the inner surface of the receiving cone.
IPC 8 full level
B22D 1/00 (2006.01); B22D 41/08 (2006.01)
CPC (source: EP)
B22D 1/005 (2013.01); B22D 41/08 (2013.01)
Citation (applicant)
EA 200501284 A 20050912
Citation (search report)
- [A] GB 2149699 A 19850619 - USS ENG & CONSULT
- [A] EP 0282824 A2 19880921 - ARBED [LU]
- [A] EP 0956917 A1 19991117 - RAUBUCH BERTHOLD [DE]
- [A] EP 0576212 A2 19931229 - FOSECO INT [GB]
- [A] GB 1368390 A 19740925 - STOECKER & KUNZ GMBH
- [A] US 4139184 A 19790213 - GRIFFITH CECIL B, et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2025431 A1 20090218; EA 011370 B1 20090227; EA 200702122 A1 20090227
DOCDB simple family (application)
EP 08450090 A 20080619; EA 200702122 A 20070817