TROUGH END STRUCTURE OF MOLTEN PIG IRON TAPPING TROUGH, MOLTEN PIG IRON TAPPING TROUGH WITH THE TROUGH END STRUCTURE, AND CONSTRUCTION METHOD OF THE TROUGH END OF MOLTEN PIG IRON TAPPING TROUGH

摘要

PROBLEM TO BE SOLVED: To provide: a trough end structure of a molten pig iron tapping trough capable of effectively preventing generation of cracks in an inside refractory layer of a trough end; a molten pig iron tapping trough provided with the trough end structure; and a construction method of the trough end of the molten pig iron tapping trough.SOLUTION: A structure in an end portion of a molten pig iron tapping trough 1 includes: an inside refractory layer 4 consisting of a monolithic refractory to touch molten iron; and an outside refractory layer 3 provided outside the inside refractory layer 4, wherein a cushion material 5 having flexibility and freely deformable is interposed between the inside refractory layer 4 and the outside refractory layer 3.