以国内某大型电解铝厂炭素回转窑燃烧自动控制为背景,建立了冷却窑自动控制系统,采用上位机和下位机结合的分布式系统,上、下位机的通信通过DH+网络连接。根据现场经验以及对冷却窑蒸气温度和排料温度的相关性数据分析,提出了通过控制蒸汽温度实现排料温度稳定控制的方案,得出工艺参量控制效果的对比分析。 Taking the automatic control of carbon rotary kiln in a large electrolytic aluminum plant in China as the background, an automatic control system for the cooling kiln was established. The distributed system combining the upper computer with the lower computer was used. The communication between upper computer and lower computer was connected through DH + network. According to the field experience and the data analysis of the correlation between the steam temperature and the discharge temperature of the cooling kiln, a scheme of controlling the temperature of the discharge steam by controlling the steam temperature was put forward. The comparative analysis of the control effects of the process parameters was obtained.