Apparatus for extracting by adjustable flow casting of molten material into a cold wall melting furnace.

摘要

Device for the extraction by casting at an adjustable rate of a molten material in a melting furnace with a cold structure, this furnace comprising: BR/ - in the bottom (18) of the furnace, an orifice whose diameter D is greater or equal to the thickness H of the wall constituting the furnace; BR/ - a metal sleeve (20) whose base comprises a shoulder (21) adapted to adapt to the side walls of the orifice, this sleeve having a central passage which constitutes the pouring tube of the molten material, a clearance being provided between the side walls of the orifice and the base of the sleeve to accommodate an insulating material (22); BR/ - under the bottom of the oven, a device (26) with a refrigerated sliding blade, provided with an actuator (32) controlling its translational movement along the orifice, thus determining its closed or closed state. more or less large opening.