Вісник № 36
Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/38936
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Документ Study into the feasibility of electric discharge disintegration of glasslike raw material to micron fraction(НТУ "ХПИ", 2018) Tsolin, P. L.; Starkov, I. M.; Rachkov, O. M.A literature review of various methods of breaking and grinding of materials was performed, based on which a method of electric discharge disintegration (EDD) was chosen. It allows achieving of micron values fractional composition of the processed material. Mechanisms of material destruction under the influence of high-voltage electric discharge in water were considered. Used glassware (UG) was selected as raw material for disintegration due to economic and environmental reasons. Methodologies of UG preliminary preparation for disintegration and further grain-size analysis were developed. Calculation of compression wave (CW) parameters at different distances from the discharge channel for given discharge circuit initial parameters was performed. Maximum distance at which CW has required destructive effect was determined based on the comparison of physical and mechanical properties of glass and results of performed calculations. Appropriate discharge circuit properties (e.g., useful power) necessary for EDD grinding of UG to micron fraction was determined based on the parameters of the discharge circuit and practically achievable switch frequency. The results of previous processing which was carried out with set circuit parameters in the chamber providing the required maximum radius of destruction in pure water and in water with the addition of surfactants, were obtained to evaluate the possibilities (primarily, achievable dispersion) of UG EDD. The grain-size analysis of dispersion composition showed the possibility of disintegration of the glass into the micron fraction (with grains of size ranging from 5 to 7 microns – up to 30 weight percentage).