Blast furnace morning glory part structure and design method thereof

摘要

A structure of the bosh zone of the tubular is provided between the furnace and abdominal tuyere portion of the blast furnace increases in diameter toward upward in the vertical direction, wherein the bosh zone, the blast-furnace bosh zone structure, iron ring upper edge of the part morning glory above; has a bosh zone for stave and skin, of copper or copper alloy which is provided on the inner periphery of the furnace shell, and a refractory brick provided on the inner periphery of the bosh zone for Stab horizontal thickness of the refractory bricks in the lower edge position of the part morning glory is there in 200~500mm;; in cross-section containing the axis the parts there in the morning glory 50~250mm the thickness of the horizontal direction of the refractory bricks in position when viewed, narrow angle formed between the horizontal plane and the surface of the morning glory-section stave is 75~82 °.