Charging method for raw material and manufacturing method for molten pig iron

JP2025113969AActive Publication Date: 2025-08-04JFE STEEL CORP
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Patent Information

Application Number
JP2024193475
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-23
Filing Date
2024-11-05
Publication Date
2025-08-04
Estimated Expiration
2044-11-05

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Abstract

To provide a charging method for raw material that can suppress blockage at a discharge port during discharge of iron source raw material in a storage tank.SOLUTION: In a charging method for raw material for charging a first raw material in granular form and a second raw material in elongated form into a storage tank for discharging solid raw materials, the content ratio of the second raw material in the solid raw materials is determined to be equal to or less than an upper limit value based on the opening diameter of the discharge port of the storage tank, the average particle size of the first raw material, and the dimensional information of the second raw material.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • High furnace operation method using reduced iron

    JP2015199978A

  • Pig iron production method

    JP2022150455A

  • Pig iron production method and ore raw material

    JP2022187900A

  • Method for charging blast furnace with raw material

    JP2017088950A