METHOD OF BURNING-IN LINING IN BOTTOM BLOWN STEELMAKING FURNACE

摘要

A method of frying refractory material in an oxygen bottom blown steel fabrication converter including nozzle means installed at the bottom of said converter, said nozzle means defining at least one step for passing oxygen inside said converter and another step to pass a gaseous hydrocarbon to it, characterized by the operations of: a) passing oxygen and gaseous hydrocarbon for combustion into said converter through each of said steps, respectively; b) regulating the flow of said oxygen and said gaseous hydrocarbon to control the rate of heating of said refractory; and c) simultaneously passing a neutral gas in mixed relationship with at least one of said oxygen and of said gaseous hydrocarbon, in amounts adequate to create a total fluid flow through said nozzle passages of sufficient magnitude to prevent entry into opposite direction of foreign matter in them. (Machine-translation by Google Translate, not legally binding)