DEVICE AND METHOD FOR TREATING WASTE MATERIAL OR SLAG OF NON-FERROUS METAL AND ITS ALLOY

Equipment and method for treating waste or residue of non-ferrous metals and their alloys, comprising the steps of: loading waste or residue to be processed; heating the material (29) and molten metal; rotating the heated material (29); removing molten metal and emptying the furnace chamber (28) wherein the scrap (29) or residue (23) is heated above the melting point of the metal or non-ferrous alloy to be recovered using a free-burning convective arc which is independent of the supply of external gas and which does not require the use of salt. Equipment for the processing method, characterized in that it comprises a container (1) with a closed door, which has an axis of rotation and rotates or vibrates about this axis of rotation; the container (1) can be in a horizontal position or inclined upwards Or down; through free combustion convection arc heating, the arc is self-stabilizing, and generated by DC discharge, as an adjustment of the tilt angle of the rotating shaft of the container (1) and the amount of material, it can be used on a single electrode (3) and material (29 ) or between the bottom wall of the container (1) made of electrically conductive material (15); said electrode (3) acts as a cathode and is introduced through the container door (2), preferably according to The axis above is eccentric or inclined, and the length of the arc can be adjusted along its axis.