Patent ID: 9612055
Date: 2017-04-04
CPC Classifications: F27B,F27D

Claim:
1. A furnace capable of selective circulation and transfer of molten metal, comprising: a main hearth that contains molten metal; a pump that pumps molten metal; a pump well that contains molten metal, said pump being disposed in said pump well; a first refractory wall disposed between said pump well and said main hearth, said first refractory wall including a first opening permitting passage of molten metal through said first refractory wall; a second refractory pump wall disposed in said pump well downstream of said pump, said second pump wall including a second opening permitting molten metal to leave said pump well; a device for enabling selective molten metal circulation and transfer including: wherein when said elongated transfer conduit is positioned in alignment with said second opening said molten metal is transferred from said furnace to said vessel; and wherein when said elongated transfer conduit is moved out of alignment with said second opening said pump circulates the molten metal in said furnace.