Title:
INTRA-FURNACE STATE INFERENCE DEVICE, INTRA-FURNACE STATE INFERENCE METHOD, AND MOLTEN STEEL MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/095647
Kind Code:
A1
Abstract:
An intra-furnace state inference device (1) comprises: an input unit (11) to which past record information and a refining process condition are inputted; a model determination unit (14) for, by using a past model parameter acquired from a database in which a model parameter of a model concerning blowing reaction, past record information, and a refining process condition are stored, determining a model parameter in a refining process for a target charge; and an intra-furnace state calculation unit (15) for, by using the determined model parameter, calculating an intra-furnace state amount that includes the temperature and component concentration of molten metal and component concentration of slug; and a model parameter calculation unit (13) for, by using the past record information including a result of the refining process of the target charge, calculating a model parameter in the refining process for the target charge on the basis of an evaluation function that includes terms indicating a material balance error and heat balance error in a furnace from a start point to an end point of a specific period in the refining process.
Inventors:
KASE HIROTO (JP)
SUGINO TOMOHIRO (JP)
KAWABATA RYO (JP)
KIMURA YUKI (JP)
SUGINO TOMOHIRO (JP)
KAWABATA RYO (JP)
KIMURA YUKI (JP)
Application Number:
PCT/JP2022/042138
Publication Date:
June 01, 2023
Filing Date:
November 11, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21C7/00; C21C5/28
Domestic Patent References:
| WO2019181562A1 | 2019-09-26 |
Foreign References:
| JP2017089001A | 2017-05-25 | |||
| JP2014201770A | 2014-10-27 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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