Apparatus and method for melting metal material
AssigneeDanieli & C. Officine Meccaniche SpA
InventorsGianpietro Benedetti, Stefano Terlicher, Federico Bianco, Damiano Patrizio
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Abstract
Apparatus for melting metal material comprising a container for metal material, by way of example, but not limited to, metal scrap, DRI, cast iron, supplied in an electric arc-type melting furnace, and a plurality of electrodes to melt the metal material, which can be inserted in said container.
Claims17
An apparatus for melting metal material comprising a container to contain the metal material to be melted, a loading device associated with a lateral wall of said container in order to load said metal material substantially continuously into the container, and at least two pairs of electrodes to melt said metal material, each pair of electrodes being connected to a respective power unit, and said electrodes being inserted at least partly into said container, and being disposed in a pattern at the respective tops of a polygon, each pair of electrodes comprises a first electrode and a second electrode, said that electrodes are located at tops of a first side of said polygon and said second electrodes are located at tops of a second side of said polygon, said first side and said second side defining respectively a smaller base and a larger base of a trapezoid, and in that a distance between said first side and said loading device is less than a distance between said second side and said loading device.
A melting method comprising inserting, substantially continuously, metal material into a container with a loading device associated with a lateral wall of said container, and melting of the metal material by at least two pairs of electrodes, said pairs of said electrodes being electrically powered each by a respective power unit, and said electrodes being at least partly inserted into said container, disposing said electrodes reciprocally in a pattern at tops of a polygon, wherein each pair of said electrodes comprises a first electrode and a second electrode, in that said first electrodes are located at tops of a first side of said polygon and said second electrodes are located at tops of a second side of said polygon said first side and said second side defining respectively a smaller base and a larger base of a trapezoid, and in that said metal material is inserted into said container in correspondence with said lateral wall of said container facing toward said first side of said polygon.
Dependencies are inferred from the claim text.