Vibrating Conveyance of Granular Materials

Abstract

The conveying mechanism is analyzed considering air flow resistance and re-arrangement of the granules that is explained by frictional model. Rice, gravel and Alundum are experimentally conveyed, and the acceleration, the loci, the landing phase and the conveying velocity are measured. (1) When the granular layer slides repeatedly, granules in shearing layer change their arrangement every time sliding direction changes. The re-arrangement decreases the conveying velocity. (2) The air flow resistance accelerates the landing phase of the layer and reduces the effect of vibration.