Apparatus for the process of melting and purification of aluminum, copper, brass, lead and bronze alloys

Apparatus for melting and purification of aluminium, copper, brass, lead and bronze alloys, said apparatus comprising:

• two induction sets,
• a first set of said two induction sets used for heating and melting of raw material and pumping molten metal derived therefrom into a second set of said two induction sets,
• the second used to purify and degas the molten metal and thereafter discharge the molten metal for further treatment,
• each of said two induction sets having a crucible, electromagnetic means for heating the raw material in the crucible, and a permanent magnetic surrounding both a lower part of the crucible and the electromagnetic means,
• the crucible of said first set communicating molten metal to the crucible of said second set by a first pipe and the crucible of said second set discharging the molten metal through a second pipe, said second pipe having a filter for filtering coagulated inclusions,
• said electromagnetic means comprising at least two pairs of electromagnets, each pair of said two pairs of electromagnets respectively arranged opposite each other on sides of the crucible, and independently connected to a three-phase alternate current in a manner permitting variation of a phase of the alternate current delivered to each of the two pairs of electromagnets
• a form of a core of each of the two pairs of electromagnets corresponding to a form of the lower part of the crucible so that a magnetic field produced by the two pairs of electromagnets increases from a top of said core to a bottom of said core,
• each crucible being closed by a cover and a funnel conveyor being engaged next to an inlet of said first pipe and an inlet of said second pipe.