COLD IRON SOURCE SOLUBILITY ESTIMATION DEVICE, COLD IRON SOURCE SOLUBILITY ESTIMATION METHOD, AND REFINING TREATMENT METHOD FOR MOLTEN IRON

WIPO Patent Application WO/2024/018783

A1

Provided is a cold iron source solubility estimation device that can calculate the solubility of a cold iron source by using high-versatility parameters.　This cold iron source solubility estimation device 30 estimates the solubility of a cold iron source in a refining process for molten iron that uses the cold iron source as the raw material, the device including: an acquisition unit 36 that acquires furnace information, including information about the molten iron and cold iron source; a computation unit 38 that uses the furnace information to calculate the interfacial carbon concentration between the cold iron source and the molten iron, the dissolution rate of the cold iron source, and the solubility of the cold iron source; and an output unit 40 that outputs the solubility, wherein, when the interfacial carbon concentration satisfies a prescribed condition, the computation unit uses the interfacial carbon concentration calculated one step previously to calculate a first dissolution rate from a heat transfer balance equation, and a second dissolution rate from a carbon material balance equation, and calculates the dissolution rate of the cold iron source by proportionally dividing the first dissolution rate and the second dissolution rate.

HATTORI YUDAI (JP)
YOKOMORI REI (JP)
OGASAWARA FUTOSHI (JP)
KAWABATA RYO (JP)
KIKUCHI NAOKI (JP)

PCT/JP2023/021995

January 25, 2024

June 14, 2023

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JFE STEEL CORP (JP)

C21C5/28; C21C5/30; C22B9/16

JP2009256716A	2009-11-05
JPH04313A	1992-01-06
JP2016132809A	2016-07-25
JP2005206901A	2005-08-04

KUMASAKA Akira et al. (JP)

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