【摘要】 介绍了烟气分析动态控制系统在莱钢60 t氧气顶吹转炉上的应用情况,主要包括硬件系统组成、数据采集与通讯、冶炼工艺标准化和动态控制系统模型。结果表明:采用高拉碳操作,终点碳在0.08%~0.24%范围,终点温度在1 580~1 660℃范围,碳温控制精度分别为±0.025%和±20℃时,碳单命中率达到89%,温度单命中率71%,碳温双命中率64%;为进一步提高碳温双命中率,应加强原材料的管理,按配料计算组织装料,并采用标准化的操作工艺,尤其是必须采用顶底复吹工艺。更多还原

【Abstract】 The application of dynamic control system with off-gas analysis to the 60-ton top-blown converter at Laiwu Iron and Steel Group Co.,Ltd.is introduced.The main contents include the configuration of hardware system,data collection and communication,standardization of blowing process and dynamic control models.The following results were obtained: the hitting rates of carbon and temperature were 89% and 71% respectively,the simultaneous hitting rate of both C and T was 64% when the end point carbon content and temperature were in the range of 0.08%-0.24% and 1 580-1 660 ℃,with an accuracy of controlling C and T were ±0.025% and ±20 ℃ respectively;In order to increase the simultaneous hitting rate of both end point carbon and temperature,it is necessary to improve the management of raw materials,carry out charging according to the charging model,adopt standardized operation and especially apply top-bottom combined blowing technique.更多还原