Industrial pure iron refining method with oxygen and aluminum synergic control
By adopting closed-loop control based on initial carbon content for pre-deoxidation, oxygen prediction and correction compensation in the RH refining process, combined with composite modifiers and image recognition to optimize soft blowing, the problems of rigid control strategies, aluminum-oxygen control contradictions and high cost of top slag modification in the RH refining process have been solved. This has enabled high-precision, low-cost intelligent production and ensured the high quality and stability of industrial pure iron.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
The existing RH refining process has shortcomings in terms of rigid control strategies, prominent contradictions in aluminum-oxygen control, high costs of top slag modification, and lack of closed-loop intelligent control, resulting in insufficient control accuracy, poor stability, and poor industrial applicability.
The system employs pre-deoxidation based on the initial carbon content of molten steel, combined with closed-loop control involving oxygen prediction and correction compensation. It uses composite modifiers for top slag modification and optimizes soft blowing through image recognition to achieve dynamic adjustment and intelligent production.
It achieves precise and highly adaptable control over the deoxidation process, significantly reduces production costs, improves the accuracy of the final oxygen and aluminum content, and ensures product quality consistency and production stability.