KINETICS OF THE PROCESS OF DRYING THE PASTE OF TITANIUM DIOXIDE IN AN ORIGINAL DRYING VORTEX APPARATUS AND OBTAINING A FINE POWDER TIO2

  • V.M. Marchevskii National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
  • Ya.V. Grobovenko National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
Keywords: drying, modeling, coolant, titanium dioxide, drying apparatus, moisture content, kinetics

Abstract

The authors of the article justified the physical model of the drying process of titanium dioxide paste and the drying of TiO2 fine powder to a residual moisture content of 0.3%, on the basis of which a mathematical model of the drying process is developed. The result of solving the mathematical model is the kinetic parameters of the drying process, with the help of which the drying apparatus of the vortex type was designed, designed and manufactured. The results of the simulation were verified by experimental studies of the drying and drying of TiO2 paste, and experimental graphical dependences of the drying rate and product temperature on the drying time were obtained. The obtained dependences are analyzed and the necessary initial parameters of the coolant are established, which allow increasing the drying rate and reducing energy costs for the drying process. As a result of the experiments, the fine powder of titanium dioxide fits the requirements of state standards and possesses the necessary mechanical and consumer properties. Bibl. 10, Fig. 7.

Author Biography

V.M. Marchevskii, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv

Candidate of Technical Sciences

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Published
2018-12-20
How to Cite
Marchevskii, V., & Grobovenko, Y. (2018). KINETICS OF THE PROCESS OF DRYING THE PASTE OF TITANIUM DIOXIDE IN AN ORIGINAL DRYING VORTEX APPARATUS AND OBTAINING A FINE POWDER TIO2. Energy Technologies & Resource Saving, (4), 23-29. https://doi.org/10.33070/etars.4.2018.03
Section
Thermophysical basics of energy processes