Installation for eliminating impurities during casting of metals
AssigneeAsturiana De Zinc, S.A.
InventorsFernando Sitges Menendez, Francisco Alvarez Tamargo, Francisco Tamargo Garcia, Jose M. Matinez Valdes
Life of this patent
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Abstract
An installation for eliminating impurities during casting of metals, comprising at least one casting ladle (2) which forms an outlet siphon (3) and can tilt around a transverse axis (14). Starting from the siphon (3), the casting ladle (2) is prolonged by a conduit (4) which ends at a scum-retaining pan (5), wherein the conduit forms a single piece with the ladle and the pan. The pan (5) has outlet orifices (7) at the bottom and is externally lined with a ceramic cloth (10) which acts as a filter for retention of impurities.
Claims12
An installation for eliminating impurities during casting of metals, comprising:
- a casting ladle having an inlet to the ladle for metal from a melting furnace;
- a siphon communicating into and movable with the ladle, the siphon having an outlet;
- the ladle with the siphon being tiltable between a filling position, at which the ladle may receive molten metal while the outlet of the siphon is at a height above the maximum height reached by the molten metal in the ladle, and a pouring position at which the outlet of the siphon is lowered below a level enabling the molten metal to pour out from the ladle through the siphon;
- a scum retaining pan for receiving metal from the outlet of the siphon at the ladle;
- a conduit communicating between the ladle at the outlet from the siphon and the pan, wherein the conduit forms a single component with the ladle and the pan such that the conduit and the pan tilt together, the conduit being of a length and the conduit being tiltable to a slope sufficient for metal flowing from the ladle to the conduit at a desired production rate, the pan being positionable over an ingot mold for delivering molten metal from the pan into the mold.
Dependencies are inferred from the claim text.