缩短2 250mm精轧机组换辊时间的研究

首钢京唐钢铁联合有限责任公司2 250mm热轧生产线每天平均换辊8次,每次需耗时约18min。每次换辊用时虽为正常停机时间,但换辊次数过多、换辊时间过长降低了轧机的作业率,减少了轧线的产能。通过分析改进换辊流程中的设计不足,并对存在优化空间的程序、步骤进行了完善,缩短了换辊时间,精轧平均换辊时间缩短至15min,为热轧生产线增产达效提供了重要保障。

Research on reducing the roll change time of 2 250 mm finishing mill

Eight times of roll change of Shougang Jingtang 2 250 mm finishing mill should be need in a day,and it took about 18 minutes for every time.Although the roll change time belongs to the normal downtime,but it reduces the operation efficiency of mill and reduces the capacity of production line.The disadvantage of the designed roll change process was analyzed,and the optimized space program was improved.The roll change time of 2 250 mm mill was reduced to 15 minutes on average,and it provide guarantee for increasing production efficiency of hot rolling line.