A deoxidized steel block and a molten steel deoxidizing method

By using deoxidized steel blocks with a spray structure in molten steel, and utilizing magnesium gas to drive the steel blocks to rotate and move, the complex deoxidation operation of molten steel in the prior art is solved, and uniform removal of oxygen from molten steel and efficiency improvement are achieved.

CN117488010BActive Publication Date: 2026-07-03OUYE LIANJIN RENEWABLE RESOURCES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
OUYE LIANJIN RENEWABLE RESOURCES CO LTD
Filing Date
2023-12-07
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing steel deoxidation technologies require the simultaneous use of argon and protective slag or multiple gases, making operation complex. Furthermore, the magnesium steam desulfurization and deoxidation process relies on multiple gases to be completed in sequence, resulting in low efficiency.

Method used

A deoxidized steel block with a spray structure is used. After magnesium is heated and vaporized, it drives the steel block to rotate and is sprayed into the molten steel for deoxidation. The spray structure design allows the magnesium gas to diffuse evenly in the molten steel, and the top spray structure provides a reaction force to move the steel block.

Benefits of technology

It achieves uniform removal of oxygen from molten steel, simplifies the operation process, reduces density requirements, and improves deoxidation efficiency.

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Abstract

This invention discloses a deoxidized steel block and a method for deoxidizing molten steel, relating to the field of molten steel deoxidation technology. The deoxidized steel block and method employ a circumferentially arranged spray structure, which rotates the steel block when magnesium gas is sprayed, thereby ensuring uniform diffusion of the magnesium gas in the molten steel. By setting the spray structure at the top of the steel block, this method essentially eliminates the requirement for a specific steel block density (magnesium content), and the magnesium gas sprayed from the top spray structure propels the steel block towards the bottom of the molten steel.
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