| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a three-phase AC electrode type circular electric furnace and a method of cooling its furnace body, capable of preventing progress of local erosion of a furnace sidewall, capable of properly controlling the thickness of a coating formed on a furnace sidewall inner peripheral part and the producing state of a production area etc. to suppress contraction of an effective volume within the furnace, and having a cooling function, in the three-phase AC electrode type circular electric furnace used in steel and non-ferrous metal melting and refining. <P>SOLUTION: In the method of cooling the furnace body of the three-phase AC electrode type circular electric furnace, copper cooling components for making cooling water to cool a furnace sidewall refractory layer flow are arranged at a plurality of stages in the vertical direction and in a plurality of rows in the circumferential direction over the entire face of the furnace sidewall refractory layer installed in an outer peripheral part. Conduits for making the cooling water flow are connected to interconnect adjacent stages of the copper cooling components arranged at the plurality of stages in the vertical direction in series sequentially with respect to each row in the circumferential direction. By controlling cooling water flowing amount with respect to each row, cooling intensity with respect to each row is controlled. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
