Abstract
From the engineering viewpoint, continuous operation of powder handling processer is based on solids flow theory and rate equations incorporated with the techniques of process measurement and control. Establishing these theories, and then giving fundamental items such as material properties of solids, structure of epuipments and operational conditions, it would be possible to predict various phenomena relating to powder and inversely to design proper equipments as well as to select optimum conditions. At the same time, development of measuring and controling instruments is essential to continuous processes.
This article briefly presents systematic analyses on the mechanism of solids flow in relation to the unit operations of storage, supply, transport and sieving at first and then the kinetics of closed-circuit grinding, further followed by automatic detecting techniques of particle flowrate, mixing ratio and particle size.
