Method of calculation constructive and technological parameters of installation for combined drying of enriched products by variable direct influence

О. Zamitskyi, S. Kradozhon
Received 06.06.2021, Revised 10.10.2021, Accepted 19.11.2021, Published 17.12.2021
Abstract

To develop a recommendation for the industrial use of the method of drying fine enrichment products. The methods of mathematical modeling and mathematical statistics are used in the verification of the results of theoretical calculations obtained to determine the parameters of the installation for combined drying of fine materials by direct influence of alternating electric current. For the first time the method of calculation of constructive and technological parameters of drying installation fine enrichment products by passing of alternating electric current is developed. At wet processes of enrichment minerals there is a necessity of dehydration fine products (concentrates, tails, slimes). However, existing methods of dehydration may not always provide the required final moisture content of such products, or have high energy costs and are harmful to the environment, such as thermal drying. There are problems with the structure of the vapor environment of sediments, as its study is a difficult task. The greatest difficulties arise when drying sludge, which has a highly developed surface of particles, and due to the presence of capillary phenomena, as well as the special properties of the liquid in thin channels. This encourages the development of new effective methods of dehydration fine enrichment products. One such method is a combined method of drying by direct exposure to alternating electric current. But so far no method has been developed to calculate the design and technological parameters for the design of the installation that implements this method. Therefore, the development of methods for calculating the installation for combined drying by direct exposure to alternating electric current, which allows to provide rational parameters for dehydration of fine materials is of high practical importance. A technique has been developed for calculating the design and technological parameters of a drying plant for dehydration of enrichment products by internal heat sources under conditions of electric heating in a combined way. This allows to determine the rational parameters of the dryer to ensure the best performance energy saving, environmental friendliness and energy consumption.

Keywords:
drying installations; energy efficiency; fine materials; methods

Retrieved from Vol. 19, No. 2, 2021

Pages 126–131

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Zamitskyi, О., & Kradozhon, S. (2021). Method of calculation constructive and technological parameters of installation for combined drying of enriched products by variable direct influence. Journal of Kryvyi Rih National University, 19(2), 126-131. https://doi.org/10.31721/2306-5451-2021-1-53-126-131
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