EP 0051746 B1 19840919 - IMMERSION LANCE FOR STEEL MAKING PURPOSES
Title (en)
IMMERSION LANCE FOR STEEL MAKING PURPOSES
Publication
Application
Priority
DE 3041995 A 19801107
Abstract (en)
[origin: EP0051746A1] 1. Immersion lance for steelworks operations, for blowing gases and/or pulverulent solids into pig-iron or steel melts, with a nozzle at the front end and with means for connecting a coupling at the rear end, comprising a lance pipe and a refractory jacket which is composed of a plurality of annular cylindrical segments, wherein the foremost segment is axially secured on the lance pipe by means of a holder, and the rearmost segment, which is arranged at a spacing from the connecting means of the coupling, abuts by means of an axially yieldable intermediate element, namely a preloaded spring, on an axially adjustable releasable abutment which is connected to the lance pipe by a force-locking connection, characterized in that a clamping element (8) variable in its axial extent is provided between the abutment (5) and the yieldable intermediate element (6).
IPC 1-7
IPC 8 full level
CPC (source: EP)
C21C 5/4613 (2013.01); C21C 7/0037 (2013.01)
Citation (examination)
WO 8001923 A1 19800918 - HOEGANAES AB [SE], et al
Designated contracting state (EPC)
AT FR GB
DOCDB simple family (publication)
EP 0051746 A1 19820519; EP 0051746 B1 19840919; AT E9492 T1 19841015; DE 3041995 A1 19820722; DE 3041995 C2 19821021
DOCDB simple family (application)
EP 81107966 A 19811006; AT 81107966 T 19811006; DE 3041995 A 19801107