MODELINGOF ZEOLITE DRYING PROCESS

The object of research is the zeolite drying process. The physical model of the zeolite drying process is substantiated. A mathematical model of the zeolite drying process was compiled and solved. To solve the mathematical model were used methods of mathematical analysis and software MathCAD. An experiment to study the kinetic regularities of the process of drying the zeolite was performed in order to confirm the adequacy of the mathematical model. As prototypes used bulk zeolite fraction of 0-1 mm. Drying occurred at a thickness of 5 mm of the zeolite layer. According to the source of thermal energy, a drying chamber of 850 W was used. The kinetic laws of the zeolite drying process have been established. The numerical values of the drying time of the zeolite in different periods of drying are determined. According to the analysis of the results of the study of the drying process of a zeolite, it was established that the kinetic regularities of this process are similar to the drying process of capillary-porous bodies. The duration of the drying periods depends on the heat flow density and decreases with increasing heat flow density. Also a certain influence of the drying process parameters on the moisture content at the end of the first period. The temperature of the zeolite in the first period of drying is not constant, but increases. This indicates an excess of thermal energy supplied during this period. The adequacy of the mathematical model was checked by calculating the Fisher criterion and the repeatability of the results was found; that the decoupling of the mathematical model of the zeolite drying process is 97%. It allows to develop an algorithm for calculating industrial dryers, generally reduce energy consumption and production time of the zeolite. The obtained curves of drying of the zeolite can predict the nature of the process.