Aiming at the automation control effect of Lithopone rotary kiln's calcination process and kilnhead temperature, which is the key process parameter,is not good, the software & hardware system were improved and perfected. According to the difficulty of product's performance index which has to be tested offline, and object structure characteristic and process flow, predictive control strategy was adopted to improve the control of calcination process, on the basis that kiln-head temperature was controlled to be more stable with the use of fuzzy & PID methods. The structure and configuration of hardware system, and the design method of the predictive controller were introduced in detail. The result of application shows the steady-state behavior of the kiln-head is better, and the stability and quality of product's performance index have been improved.%针对锌钡白工业回转窑煅烧过程和关键工艺参数窑头温度的自动控制效果不理想,对软硬件系统进行了改进和完善.根据产品性能指标只能离线检验这一难点,结合对象的结构特点和工艺流程,在采用模糊结合PID的方法对窑头温度进一步控制稳定的基础上,运用预测控制的方法改进了煅烧过程的控制.详细介绍了系统硬件结构和选型,预测控制器的设计方法.运行结果表明,窑头温度稳态性能得到较大改善,产品性能指标的稳定性和质量得到提高.
展开▼
