| 摘要 |
PURPOSE: An agitating gas nozzle for blowing media into an electric furnace and an alarm apparatus and method using the nozzle are provided to prevent the leakage of molten metal by checking the degree of erosion of refractory materials. CONSTITUTION: An agitating gas nozzle for blowing media into an electric furnace comprises a block type body stacked in an electric furnace, a nozzle(121) which passes through the body and is connected to an agitating gas line(211) outside the electric furnace to blow agitating gas into the electric furnace, and an alarm hole(131) which is formed on an end of the body facing the agitating gas line and connected to the agitating gas line. [Reference numerals] (231) Control unit |
