INVESTIGATION OF VIBRATED FLUIDIZED DRYER

In this paper the basic types of vibrated fluidized dryers were described. A new vibro-fluidized dryer was designed and developed. Theoretical analysis of the characteristics of dynamics,kinematics and specificity of drying in the vibrated fluidized dryer was presented. By carrying out a number of wheat experiments, the factors influencing the performance of dryer were found out, and optimum range of these parameters were obtained. The experiments showed that the factors which affect the drying rate and grain temperaturs in order of importance are hot air temperature, feed rate and airflow rate. The removed moisture content per minute is increasing rapidly if the vibrating amplitude is raised. The drying test of Chinese herbs and diced potato indicates that the multipurpose, simple construction, high productivty and drying efficiency are the main advantages of vibrated fluidized dryer.