Electrode base bake out furnace bell

The utility model belongs to the technical field of the ferrous metallurgy, in particular to electrode base bake out furnace bell, including circular shape owner bell and round outside but spuare inside subsidiary bell, be provided with 3~4 round opening on the main bell, the number of assisting the individual scalar sum round opening of bell is the same, main bell round opening diameter is 600~800mm, assisting the bell shape and being round outside but spuare inside, outside diameter compares and corresponds 80 big~120mm of main bell round opening diameter, the subsidiary bell square length of side be 200~280mm, assisting the bell and being divided into two lamellas along interior side square one of them diagonal with bell etc. Its opening one end is with the round pin hub connection, and other end opening can rotate along the round pin axle and open or be closed, assist in the bell contact that closely cooperates of square form and square billet dummy electrode. The utility model discloses aim at overcomes