公开(公告)号：US20240393159A1

公开(公告)日：2024-11-28

申请号：US18691887

申请日：2022-08-10

Applicant: JFE STEEL CORPORATION

Inventor： Hiroto KASE ,  Sota ITO ,  Keisuke SANO ,  Rei YOKOMORI ,  Futoshi OGASAWARA ,  Ryo KAWABATA ,  Tomohiko ITO

IPC: G01G17/04 ,  C21C5/32 ,  C21C5/46 ,  G01F23/284 ,  G01N9/32

Abstract: A furnace slag amount estimation device (1) includes: an input unit (11) configured to receive input data including furnace shape data for a converter, data on components and temperatures of molten metal and slag before start of or during blowing treatment, and slag height data in a furnace of the converter; a slag bulk density calculation unit (13) configured to calculate a slag bulk density after the converter is tilted, using the input data and a model; a slag volume calculation unit (14) configured to calculate a slag volume in the furnace after the converter is tilted, using the slag height data after the converter is tilted, the furnace shape data, and a model; and a slag weight calculation unit (15) configured to calculate a slag weight in the furnace after the converter is tilted and slag is discharged, using the calculated slag bulk density and the calculated slag volume.