DEVICE FOR RELIEVING THERMAL STRESS IN FURNACE MEMBERS COOLED BY SPRINKLING Russian patent published in 1997 - IPC

FIELD: ferrous metallurgy; melting furnaces; arc furnaces. SUBSTANCE: device has single structural member 58 which forms closed chamber of furnace with inner solid steel plate 14 cooled by sprinkling, steel frame 51 whose thickness is equal to thickness of inner steel plate 14. Copper plate is welded to frame 51 over outer periphery 55 forming water- and gas-tight seals. Inner steel plate 14 has cut 18 ate area subjected to high-temperature stress; steel frame 51 with copper plate is tightly fitted inside cut 48 and is welded to steel plate over entire perimeter of cut. EFFECT: enhanced reliability. 4 cl, 15 dwg