Non-ferrous metal melt pump and non-ferrous metal melting furnace using the same

A non-ferrous metal melt pump comprising:

• a vortex chamber body that makes a non-ferrous metal melt flow into a vortex chamber from an inlet, makes the non-ferrous metal melt flow in a spiral shape by applying a driving force to the non-ferrous metal melt in the vortex chamber, and discharges the non-ferrous metal melt from the vortex chamber to an outlet;
• and
• a movable magnetic field generator that is disposed outside the vortex chamber and below a bottom plate of the vortex chamber, and applies the driving force to the non-ferrous metal melt by rotating magnetic lines of force, which pass the non-ferrous metal melt in an up-and-down direction, along a horizontal plane,
• wherein the inlet and the bottom plate face each other in an up-and-down direction, the outlet is opened in a substantially horizontal direction, and the vortex chamber body includes a spiral flow channel that is formed from the inlet to the outlet,
• the movable magnetic field generator includes a magnet base formed as a rotating plate that is supported so as to rotate around an axis extending in an up-and-down direction, and the plurality of permanent magnets that is circumferentially disposed on the surface of the magnet base facing the bottom plate of the vortex chamber in an up-and-down direction so that different polarities are arranged alternately,
• the magnetic lines of force that are generated by the plurality of permanent magnets pass through the non-ferrous metal melt existing in the vortex chamber in an up-and-down direction, and the non-ferrous metal melt flows in an up-and-down direction into the vortex chamber, and
• as the permanent magnets are rotated, the magnetic lines of force move along a horizontal plane, the magnetic lines of force passing through the non-ferrous metal melt substantially in an up-and-down direction, so that a driving force is applied to the non-ferrous metal melt.