Open AccessKINETICS OF THE PROCESS OF DRYING THE PASTE OF TITANIUM DIOXIDE IN AN ORIGINAL DRYING VORTEX APPARATUS AND OBTAINING A FINE POWDER TIO2
Author(s) -
Victor Marchevskii,
Ya.V. Grobovenko
Publication year - 2018
Publication title -
ènergotehnologii i resursosbereženie
Language(s) - English
Resource type - Journals
eISSN - 2664-3561
pISSN - 2413-7723
DOI - 10.33070/etars.4.2018.03
Subject(s) - materials science , titanium dioxide , process (computing) , water content , titanium , spray drying , chemical engineering , process engineering , composite material , metallurgy , computer science , geotechnical engineering , engineering , operating system
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.