Control of Drying Process in Mechanically Spouted Bed Dryer |
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| Authors: | T. Szentmarjay A. Szalay E. Pallai T. Bencze J. Vass |
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| Affiliation: | 1. Research Institute of Chemical Engineering Hungarian Academy of Sciences, MTA MUKKl P.O.B. 125 , Veszprem, H-8201, Hungary;2. University of Veszprem Department of Information Technology and Automation , Veszprh, Egyetem u. 10., H-8200, Hungary |
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| Abstract: | ABSTRACT The continuously operated Mechanically Spouted Bed (MSB) dryer of high evaporative capacity can be advantageously used to produce fine powder from paste-like materials, slurries, suspensions and sludges. Due to the thin layer formed on the surface of the spherical inert particles intensive heat and mass transfer occur and the drying process takes place in the constant rate period. Steady state drying conditions can be achieved when the total operational time of partial processes of inert bed drying does not exceed the cycle time of the inert particles. A laboratory scale MSB dryer has been equipped with a computerised measuring, data acquisition and control system. In the knowledge of the hydrodynamic characteristics of the MSB and giving the enthalpy and mass balances over the dryer a calculation method has been developed for control of drying process. |
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| Keywords: | data acquisition inert particles suspension |
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