LONG NOZZLE OF A LADLE AND A MOLTEN STEEL DISCHARGE METHOD USING THE SAME TO PREVENT HIGH INTERNAL PRESSURE WHEN OPENING THE LADLE

摘要

PURPOSE: A long nozzle of a ladle and a molten steel discharge method using the same are provided to ensure stable discharge of molten steel and continuous casting by preventing the vibration of a nozzle and a ladle caused by high pressure.;CONSTITUTION: A long nozzle of a ladle comprises a connection part(10), a nozzle upper part(20), a nozzle lower part(30), an expanded part(40), and an air exhaust part(50). The connection part is coupled to a lower nozzle of a ladle. The nozzle upper part is extended to the lower side of the connection part. The nozzle lower part has a larger diameter than the nozzle upper part. Molten steel is discharged through an outlet of the nozzle lower part. The expanded part connects the nozzle upper part and the nozzle lower part to each other. The air exhaust part is formed on the lower side of the nozzle lower part and discharges interior air to outside.;COPYRIGHT KIPO 2012