EP 0223722 B1 19890208 - DEVICE AND PROCESS FOR THE LOW-PRESSURE INJECTION OF PULVERULENT ADDITIVES INTO A STREAM OF MOLTEN METAL
Title (en)
DEVICE AND PROCESS FOR THE LOW-PRESSURE INJECTION OF PULVERULENT ADDITIVES INTO A STREAM OF MOLTEN METAL
Publication
Application
Priority
FR 8515609 A 19851015
Abstract (en)
[origin: US4723763A] The invention relates to a device for continuous injection under low pressure of a powdered additive into a stream of molten metal. It comprises, in succession from top to bottom: a top compartment 5 for the admission of the molten metal, a treatment chamber 7 connected to the top compartment by a calibrated inlet orifice 8 and in which there opens, on the one hand, a tube 9 connected to a device for injection of powdered additive under gas pressure and, on the other hand, at least one conduit 11 for evacuation of gases, fumes and possible sullage, at least one buffer compartment 6 cooperating with a means for adjusting the discharge rate of the treated metal, a means for collecting the treated metal, for example a mould or a ladle.
IPC 1-7
IPC 8 full level
B01J 4/00 (2006.01); B22D 1/00 (2006.01); C21C 1/10 (2006.01); C22B 9/10 (2006.01); C22B 21/06 (2006.01); C22C 1/02 (2006.01)
CPC (source: EP US)
B22D 1/00 (2013.01 - EP US); C21C 1/10 (2013.01 - EP US); C22B 9/103 (2013.01 - EP US); C22B 21/066 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE GB IT
DOCDB simple family (publication)
FR 2588571 A1 19870417; FR 2588571 B1 19920522; DE 3662059 D1 19890316; EP 0223722 A1 19870527; EP 0223722 B1 19890208; JP H0351772 B2 19910807; JP S62164839 A 19870721; US 4723763 A 19880209
DOCDB simple family (application)
FR 8515609 A 19851015; DE 3662059 T 19861015; EP 86420253 A 19861015; JP 24399386 A 19861014; US 91904286 A 19861015