Design And Application of Automatic Control System for NCM Precursor Synthesis
In order to satisfy the high feed stability requirement in the synthesis of high-grade nickel ternary cathode material precursors,an automatic control system including feed pump package,synthesis reactor,DCS control system was designed.The system achieves precise control of amount of salt solution,ammonia alkaline solution and ammonia solution added,as well as stable control of synthesis reactor temperature and pH value by means of PID and cascade control strategies.Practical application results show that the system can ensure that the deviation of the proportion of the raw materials is less than 2％,the pH deviation is maintained at±0.02,and the temperature deviation is maintained at±0.5 ℃,which effectively improves the stability of the synthesis of the NCM precursor and the quality of the product.It has a significant effect on reducing the labour intensity and improving the production efficiency.
ternary materialssynthesiscascade controlPID control
万方数据
维普
