METHOD FOR RECYCLING SLAG OF REFINING FURNACE OF STAINLESS STEEL MAKING PLANT

摘要

PURPOSE: Provided is a refining furnace slag recycling method being capable of natural friendly treating the slag at low cost in small area by excluding water treatment and dry processes. CONSTITUTION: The method comprises the steps of cooling slag lump for a predetermined time at room temperature; crushing the cooled slag; first sorting out crushed slag fragments having a size less than 200 mm; transferring the sorted out slag fragments to a rotary cooler while supplying cooling air of room temperature to the rotary cooler, thereby cooling hot slag to a low temperature; second sorting out slag fragments with a size no greater than 10 mm out of the slag fragments output from the rotary cooler using a screen and transferring the second sorted out slag fragments to a separating hopper; and sending slag fragments with a size no greater than 0.25 mm to a fertilizer plant.