canal de vazamento para drenar ferro e fundidos metálicos e escória líquida de recipientes metalúrgicos tais como altos-fornos e fornos de fundição.

摘要

The invention relates to a tapping channel (1) for draining iron and metal melts and liquid slags from metallurgical containers such as blast furnaces (2) and melt furnaces. The tapping channel (1) is formed by an outer pipe (3) and an inner pipe (4) disposed therein in an axially displaceable manner, wherein the outer pipe (3) is rigidly connected to the refractory lining (5) of the furnace (2) and wherein both pipes (3, 4) comprise a highly refractory material.