In many particulate industries, one of the major unit operations used is fluidized bed drying process. In industries, which process large amount of solids, continuous dryers play significant role. The multistage fluidized bed dryer is adapted in research to improve the drying efficiency of final product. The moisture content is an important controlled variable in any drying process. In the present study, identification of three stage fluidized bed dryer by linear time-series models from experimental data has been done. The transfer functions and step response of three stages were identified. Based on state space model, linear quadratic controller was implemented for the identified model of multistage fluidized bed dryer in simulations. The controller was not implemented on the experimental setup.

在许多颗粒工业中，使用的主要单元操作之一是流化床干燥工艺。在处理大量固体的工业中，连续干燥器起着重要作用。多级流化床干燥机适用于研究，以提高最终产品的干燥效率。在任何干燥过程中，水分含量都是重要的控制变量。在本研究中，已经通过线性时间序列模型从实验数据中鉴定了三级流化床干燥器。确定了三个阶段的传递函数和阶跃响应。在状态空间模型的基础上，采用线性二次控制器对多级流化床干燥机的辨识模型进行仿真。该控制器未在实验设置上实现。