Outer furnace type molten steel dephosphorization treatment system

摘要

To provide a furnace-outside molten steel dephosphorization treatment system which has a simple structure and realizes a good dephosphorization ratio.SOLUTION: The spray gun 1 includes a ladle 2, an argon blowing device 3, a dephosphorizing agent storage tank 4, a slugging device 5, and a slag tank 6, and one end of the spray gun 1 is connected to a ladle 2 , The other end of the spray gun 1 communicates with the dephosphorizing agent storage tank 4 via a pipeline, a slugging device 5 is installed above the ladle 2, and below the slugging device 5 , A slag tank 6 is installed, and on the bottom of the ladle 2, an argon blowing device 3 is installed. Using the spray gun 1, raw materials necessary for Darling are blown from the dephosphorizing agent storage tank 4 to the bottom of the ladle 2, argon is blown from the bottom of the ladle 2, and good dynamic conditions for dephosphorization Finally, slagging operation is performed on the molten steel to obtain low phosphorus molten steel.BACKGROUND OF THE INVENTION