When rebuilding the pretreatment system of pulp black liquor, according to the technical regulation and the operating characteristic, a PLC-based automatic control system is developed.
在对黑液预处理系统的改进中,根据工艺要求及运行特点,设计了一种利用PLC的自动控制系统,阐述了该系统的总体设计方案及运行机组切换时的自恢复功能实现方法。