一种硅锰脱氧钢的转炉脱硫方法
By using deep dephosphorization in the early stage of converter smelting and controlling slag basicity in the later stage, the problem of insufficient desulfurization capacity in the smelting of silicon-manganese deoxidized steel was solved, achieving the effects of simplifying the process, reducing costs, and improving the cleanliness of molten steel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN VALIN XIANGTAN IRON & STEEL CO LTD
- Filing Date
- 2023-08-24
- Publication Date
- 2026-07-17
AI Technical Summary
In the current technology for smelting silicon-manganese deoxidized steel, the desulfurization capacity of the refining slag is limited, and there are problems such as long slag removal time, impact on production rhythm and ineffective removal of inclusions.
Deep dephosphorization is carried out in the early stage of converter smelting, and desulfurization is carried out in the later stage of converter by controlling the carbon content and slag basicity at the end of converter. CaO reacts with S in steel to generate high-melting-point CaS which enters the slag, thus achieving effective removal of sulfur.
It simplifies the smelting process, reduces production costs, improves the cleanliness of molten steel, and effectively controls the sulfur content of silicon-manganese deoxidized steel.
Smart Images
Figure CN117051204B_ABST