转筒式干燥器圆弧抄板的模拟研究

Study on Simulation of Extended-circular Flights of Rotary Dryers

对转筒式干燥器中圆弧型抄板的特性进行了研究 ,在所建立的数学模型的基础上 ,推导出了此种抄板在随转筒旋转过程中所持有的颗粒物料量的计算公式 ,对它所持有的物料量及其与最大持有物料量的比值进行了分析、研究 ,用VB语言编制了仿真程序 ,并对实际应用的一种转筒式干燥器进行了仿真计算 ,在四种不同的条件下 ,得出了仿真结果 ,结果表明对于颗粒物料所建立的数学模型是正确的 ,仿真结果与实际情况相吻合 ,该仿真程序对此类问题的研究具有参考价值。

In the paper, extended-circular flights characteristics of rotary dryers is researched. On the basis of the mathematical model, a set of equations has been derived to calculate the solids holdup on extend-circular flights in such dryers. Ratio of the solids holdup to maximum solids holdup is explored. A kind of practical rotary dryer is simulated by VB program language. The result of the simulation is obtained in four kind of different conditions. Simulated results is satisfactory. The programming is a useful reference for research of the similar problem.