SLAG TAP COOLING APPARATUS FOR USE IN A HIGH-TEMPERATURE FUSION FURNACE

摘要

A slag tap cooling apparatus of a high temperature furnace is provided to prevent heat damage of a slag tap by cooling the slag tap intensively, and to remove hardened slag attached to the slag tap by increasing hardness of the slag. A slag tap cooling apparatus of a high temperature furnace comprises: a wall body(14) of a high temperature furnace, a melting reaction space part(12) formed in the wall body, a slag tap(18) and a cooling block(42). Molten slag(30) discharged from the melting reaction space part flows down along the upper surface of the slag tap. The cooling block is embedded in the part of the wall body where the slag tap is seated for cooling the slag tap. The cooling block is made of a material with high heat conductivity and includes a refrigerant circulation line(42a). A damping coating member(44) is provided between the cooling block and the wall body and damping heat-expansion behavior between different materials, thereby preventing breakdown of them.