Patent ID: 7316338
Filing Date: 2008-01-08
Classification: B22D

Abstract:
1. Molten metal discharging device between a first upper container ( 1 ) and a second lower container ( 3 ), the device comprising a slide valve nozzle comprising an upper ( 42 ) and a lower ( 43 ) nozzle, the lower nozzle being movable with respect to the upper one, a circular blade ( 46 ), fixed to the base of the slide valve nozzle around a molten metal discharging aperture, said lower nozzle being inserted into said aperture with the lower end protruding from it, the discharging device comprising also a cylindrical jacket ( 22 ) defining a vertical axis and having at its upper end gas sealing means ( 24 ) adapted to be coupled to said circular blade ( 46 ) and adapted to surround the lower end of the lower nozzle ( 43 ) in operation, said cylindrical jacket ( 22 ) being fixed above said second container.