INDUCTION FURNACE Russian patent published in 1997 - IPC

FIELD: iron-melting furnaces. SUBSTANCE: induction furnace includes inductor and refractory crucible with tap-hole, hearth and wall provided with cavity whose inlet portion is connected with crucible and outlet portion is connected with tap-hole; cavity in wall may be bounded by bent surface; cavity in wall of crucible may be made in form of channels; channels may be made in form of hollow rings interconnected by means of hollow wall. Channels may be also in form of hollow bushes; channels may be made in form of zigzag hollow discharges; channels may be made in form of system of hollow walls and they may be made in form of fire-resistant tubes. EFFECT: enhanced reliability. 8 cl, 10 dwg