Permanent magnet type cylindrical molten-metal agitator and melting furnace with permanent magnet type suction pump

摘要

The agitator includes a furnace body that includes a molten metal room, and an agitating unit that agitates molten metal stored in the furnace body. The agitating unit includes a molten-metal driving room-forming part that applies a driving force to the molten metal, and forms a driving room of which both ends are opened; a pair of electrodes that is disposed in the driving room and makes current flow in the driving room under the presence of the molten metal; and a magnetic field unit which is formed of a permanent magnet disposed outside the furnace body, of which one pole of an N pole and an S pole faces the furnace body so that magnetic lines of force generated from the one pole cross the current, and which generates an electromagnetic three for driving the molten metal from one end toward the other end in the driving room.

主权项

1. A permanent magnet type molten-metal agitator for agitating a molten metal stored in a molten metal room of a furnace body, the molten metal room is formed by a side wall and a bottom wall, the agitator comprising:
a molten-metal driving room-forming part that is a different body from that of the furnace body and horizontally disposed in the molten metal room, forms a driving room in the furnace body for applying a driving force to the molten metal in the molten metal room to drive horizontally the molten metal, both end of the molten metal room are opened, a pair of electrodes that is disposed in the driving room, and a magnetic field unit which is disposed outside the furnace body, wherein molten-metal driving room-forming part forms the driving room in corporation with an inner surface of the side wall, the molten-metal driving room-forming part has a channel shape, the cross-section thereof is U-shaped, the molten-metal driving room-forming part has a main opening which is an opening part of the U-shape to be covered so as to form the driving room, a first opening at the one end and a second opening at the other end, the molten-metal driving room-forming part has a bottom wall portion and a pair of side wall portions facing each other, the side wall portions each having top surfaces, the top surfaces horizontally being contacted on the inner surface of the side wall of the molten metal room so that the main opening of the molten-metal driving room-forming part is covered by the inner surface of the side wall of the molten metal room in order to form the driving room, each of electrodes is disposed on each of the inner surfaces of each of the side wall portions of the molten-metal driving room-forming part and the electrodes are able to make electric current flow vertically the driving room under the presence of the molten metal, a magnetic field unit which is formed of a permanent magnet and is disposed outside the furnace body, a magnetic field unit faces horizontally the side wall of the molten metal room, of which one pole of an N pole and an S pole faces the side wall of the molten metal room so that horizontal magnetic lines of force outgoing from or incoming into the one pole cross the vertically flowing electric current in the driving room of the molten-metal driving room-forming part, and which generates an electromagnetic force for horizontally driving the molten metal from one end toward the other end in the driving room.