Sulfur reduction method of molten slag in electric arc furnace steelmaking process

摘要

PURPOSE: A reduction method of sulfur contained in molten slag after continuous casting process by oxygen injection is provided to recycle as desulfurization agent in LF, thus reduce the quantity of lime used in desulfurization process. CONSTITUTION: To remove sulfur contained in molten slag of ladle after continuous casting process, a lance is inserted into a ladle, and oxygen is ejected through one end of the lance that is submerged in molten slag. In this method, the depth of submerged lance is determined by regulating the ratio of the depth of submerged lance to the thickness of slag 0.3-0.7.