Structure of the DC arc furnace furnace bottom electrode

摘要

[Summary] [challenge] provides the structure of durability is there furnace bottom decrease possible DC arc furnace exchange number of times the furnace bottom electrode. A is the electrode body of metal circular rods, placed in at least one hole provided in the furnace bottom of the arc furnace, the said electrode body has a ring edge provided, the electrode body, and the connecting sheet and is, is provided with a receiving chamber of the annular, the storage tank comprises an inner wall and outer wall, the inner convex edge and an outer convex is drawn on the upper end of the inner wall of the storage tank and the outer wall is inwardly and outwardly edge is formed, the inner tongue is attached to the lower surface of the ring edge, the outer tongue is attached to the furnace bottom, the storage tank of the ring edge and the furnace bottom in the radial direction of the inner edge of the hole located substantially between, above connecting sheet, Characterized in that it has provided the above, it is a structure of a DC arc furnace of furnace bottom electrodes.