MOLTEN METAL COMPONENT ESTIMATION DEVICE, METHOD OF ESTIMATING MOLTEN METAL COMPONENT, AND METHOD OF MANUFACTURING MOLTEN METAL

    公开(公告)号:US20210216680A1

    公开(公告)日:2021-07-15

    申请号:US17054968

    申请日:2019-04-03

    Abstract: A molten metal component estimation device including: an input device configured to receive measurement information about a refining facility including measurement results regarding an optical characteristic; a model database that stores model expressions and model parameters, regarding a blowing process reaction, including a model expression and model parameters representing a relation between the oxygen efficiency in decarburization and a carbon concentration in a molten metal in the refining facility; and a processor configured to: estimate component concentrations of the molten metal including the carbon concentration in the molten metal by using the measurement information, the model expressions and the model parameters; estimate the carbon concentration in the molten metal based on the measurement results; and determine the model expression and the model parameters to be used when estimating the component concentrations of the molten metal, based on the estimation result of the carbon concentration in the molten metal.

    REFINING PROCESS CONTROL DEVICE AND REFINING PROCESS CONTROL METHOD

    公开(公告)号:US20230332260A1

    公开(公告)日:2023-10-19

    申请号:US18024156

    申请日:2021-08-25

    CPC classification number: C21C7/076 C21C2300/08 C21C2300/06

    Abstract: A refining process control device includes: a past similar performance extraction unit configured to extract, from the refining performance database, a performance value of a past refining process in which a refining condition being a refining process condition acquired before the start of the refining process and including a result of an immediately preceding refining process in the refining facility, is similar to a refining process condition as a calculation target and the evaluation value is high; and an operation amount determination unit configured to determine an initial operation amount at the start of a refining process based on the performance value of the past refining process extracted by the past similar performance extraction unit, and determine an operation amount based on a change amount of the initial operation amount after the start of the refining process.

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