Analytical Solution of Granular Product in a DeepBed Falling Rate Drying Process

According to analysis of drying characteristics of granular product, the paper described analytical solutions on a single grain with two falling rate drying stages during corresponding falling rate drying periods of deepbed drying process． The changes of drying and physical parameters， and their corresponding relation were discussed. A mathematical model was developed and analytical result was presented by computation. The potential application of this analytical solution was also given in this paper.