Metal making lance tip assembly

F - Mech Eng,Light,Heat,Weapons – 27 – D

Patent

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Details

F27D 3/16 (2006.01) C21C 7/00 (2006.01)

Patent

CA 2657393

A metal making lance tip assembly including a tip face member having a plurality of outlets, a plurality of nozzles corresponding in number and in communication with the tip face member outlets, and a coolant flow baffle member for directing coolant flow around the nozzles. The lance tip assembly further includes both a generally centrally disposed coolant fluid diverting protrusion and a plurality of radial vanes at the inner surface of the lance tip face member, which vanes preferably extend essentially the entire axial distance between the inner surface of the lance tip face member and a lower surface of the coolant flow baffle member and essentially the entire radial distance from the central protrusion to an annular coolant fluid return passageway.

La présente invention concerne un ensemble de pointe de lance de fabrication de métal qui comprend un élément de face de pointe doté d'une pluralité de sorties, une pluralité de buses dont le nombre correspond à celui des sorties et se trouvant en communication avec les sorties de l'élément de face de pointe et un élément déflecteur de l'écoulement de fluide de refroidissement destiné à guider un écoulement de fluide de refroidissement autour des buses. L'ensemble pointe de lance se compose également d'une saillie déviant un fluide de refroidissement de position généralement centrale et une pluralité d'aubes radiales sur la surface interne de l'élément face de pointe de lance, aubes qui s'étendent de préférence sensiblement sur toute une distance axiale entre la surface interne de l'élément de face de pointe de lance et une surface inférieure de l'élément déflecteur de l'écoulement de fluide de refroidissement et ce, sensiblement sur toute la distance radiale partant de la saillie centrale et se dirigeant vers un passage de retour de fluide de refroidissement annulaire.

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