SIMATICS7-300控制系统在水处理剂生产中的应用

Design and application of SIMATIC S7-300 control system to the production process of water treatment chemicals

根据工业水处理药剂生产过程的特点和对控制的要求,采用SIMATICS7-300PLC可编程控制器以及其他控制设备,构成对工业水处理药剂生产中的配料罐配料选择、输送泵的启动关停及物液输送、聚合釜进料、聚合反应、保温、蒸馏、冷却、中和等过程的顺序控制。并对安全系统的紧急排放进行PLC控制处理,从而实现了安全、高效、低耗的目的。

In the production process of industrial water treatment chemicals, According to the production process characteristics and the requirements, SIMATIC S7-300 PLC (programmable logic controller) and some other control elements are used in the mixture controlling of proportioning tank, controlling of pump running or shutdown and material liquid transfer. And then the reacting process of feeding, polymerization, keeping temperature, distillation, cooling, neutralization in the polymerization reactor are sequentially controlled. A useful PLC control scheme for the safety measure in case of emergency is given out, The system is save with, high efficiency and low consumption.