Dynamic control method for blowing lance position of converter oxygen lance

• Main Authors: XU WEIKANG, ZENG HUI, CHEN WANFU, YUAN YUHAO, LUAN JIYI, DONG DEMING, DONG HUI, WANG NIANXIN, LI CHANGXIN, ZHANG GE, LI HAIFENG, DONG HONGZHUANG
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• 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

A dynamic control method for converter oxygen lance blowing lance positions relates to the technical field of converter steelmaking, solves the problem that small and medium-sized converters in the prior art are difficult to control the oxygen lance blowing lance positions, summarizes and classifies the types and the quantity of blowing adding substances, and performs curve drawing processing on the oxygen lance blowing lance positions under various conditions through big data. Fitting a dynamic control curve of the blowing lance position of the oxygen lance of the heat under the corresponding condition to obtain the height of the control lance position of the oxygen lance at any blowing moment so as to realize the automatic control of the blowing lance position of the oxygen lance; based on the data fitting oxygen lance blowing lance position time-lance position height number axis corresponding relation, dynamic control over the converter oxygen lance blowing lance position is achieved, dry returning and spl