Batch vibrating fluid bed dryer for sawdust particles: Experimental results

In a batch experimental equipment, the behavior of a sawdust dryer in a vib rating fluidized bed is analyzed. Empirical data concerning fluidization ve locities, pressure drops and drying kinetics was obtained, and advantages o f using vibration in the drying chamber, relative to a conventional fluidiz ed bed, are shown. This technique is presented as an alternative to solve p roblems of solid agglomeration and bed defluidization. Results show that it is possible to dry sawdust with more than 2 kg/kg moisture, in a vibrating bed keeping a high degree of bed homogeneity and high quality of fluidized state.