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炼钢连铸生产中结晶器浸入式水口在线更换时,人工方式操作存在作业环境差、操作繁琐、难以保证结晶器液位稳定等问题,为此,在首钢京唐钢铁联合有限责任公司连铸机项目中设计并投用了一键式浸入式水口更换系统,以实现根据计算板坯长度,准确判定合适的水口更换时机并自动完成更换的功能,同时通过适当调节结晶器液位和板坯拉速,最大限度降低液位波动,保证了连铸生产的稳定和成品质量。
In the process of continuous replacement of mold immersion nozzle in steelmaking and continuous casting production, there are some problems in manual operation, such as poor working environment, cumbersome operation and difficulty in ensuring the stability of crystallizer level. Therefore, in the continuous casting of Shougang Jingtang Iron & Steel Co., Ltd., Machine project designed and put into use a one-touch immersion nozzle replacement system to achieve the calculation of the length of the slab, accurately determine the appropriate timing of nozzle replacement and automatically replace the function, and by appropriately adjusting the mold level and the slab Pulling speed, to minimize liquid level fluctuations, to ensure the stability of the continuous casting and finished product quality.