Steel ladle bottom argon blowing control method based on visualization

• Main Authors: ZENG HUI, CHEN WANFU, YUAN YUHAO, LUAN JIYI, DONG HUI, WANG NIANXIN, WU JIYU, LI CHANGXIN, ZHANG GE, ZHAO MIN, DONG HONGZHUANG, LIU JIANWEI
• Format: Patent
• Language: Chinese; English
• Published: 13.05.2022
• Subjects: CHEMISTRY; METALLURGY; METALLURGY OF IRON; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS

The invention relates to the technical field of converter steelmaking, in particular to a steel ladle bottom argon blowing control method based on visualization. According to the method, the flow F0 at each moment is obtained by fitting the historical data of the corresponding bottom blowing flow at each moment of steel ladle bottom argon blowing, correction is carried out in combination with the bright liquid surface radius detected by a visual monitoring lens, a dynamic model is established to calculate the optimal flow of steel ladle argon blowing at any moment, and the optimal flow of steel ladle argon blowing at any moment is calculated. And the size of an argon valve is controlled according to a calculation result, so that the flow control of the whole ladle bottom argon blowing process is realized. According to the method, the molten steel bright liquid level detected by the visual monitoring lens is combined according to the historical data fitting value, so that the argon blowing effect is effectivel