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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">nznistu</journal-id><journal-title-group><journal-title xml:lang="ru">Науки о Земле и недропользование</journal-title><trans-title-group xml:lang="en"><trans-title>Earth sciences and subsoil use</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2686-9993</issn><issn pub-type="epub">2686-7931</issn><publisher><publisher-name>Federal State Budget Educational Institution of Higher Education "Irkutsk National Research Technical University"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/2686-9993-2022-45-3-294-304</article-id><article-id custom-type="elpub" pub-id-type="custom">nznistu-239</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Разведка и разработка месторождений полезных ископаемых</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Exploration and Development of Mineral Deposits</subject></subj-group></article-categories><title-group><article-title>Влияние гидродинамических эффектов на структурные изменения дисперсоида в процессе микродезинтеграции</article-title><trans-title-group xml:lang="en"><trans-title>Influence of hydrodynamic effects on dispersoid structural changes under microdisintegration</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8117-0922</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хрунина</surname><given-names>Н. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Khrunina</surname><given-names>N. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хрунина Наталья Петровна - кандидат технических наук,  ведущий научный сотрудник Лаборатории разработки россыпных месторождений.</p><p>Хабаровск</p></bio><bio xml:lang="en"><p>Natalia P. Khrunina - Cand. Sci. (Eng.),  Leading Researcher of the Laboratory of Placer Deposit Development,  Mining Institute.</p><p>Khabarovsk</p></bio><email xlink:type="simple">npetx@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт горного дела ДВО РАН – обособленное подразделение Хабаровского Федерального исследовательского центра ДВО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mining Institute, Far Eastern Branch of the Russian Academy of Sciences – an autonomous subdivision of the Khabarovsk Federal Research Center of the Far Eastern Branch, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>09</day><month>10</month><year>2022</year></pub-date><volume>45</volume><issue>3</issue><fpage>294</fpage><lpage>304</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Хрунина Н.П., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Хрунина Н.П.</copyright-holder><copyright-holder xml:lang="en">Khrunina N.P.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.nznj.ru/jour/article/view/239">https://www.nznj.ru/jour/article/view/239</self-uri><abstract><p>Цель представленного исследования заключалась в теоретическом обосновании процесса образования дисперсоида высокоглинистых песков россыпей с повышенным содержанием мелкого и тонкодисперсного золота в условиях изменения гидродинамических параметров потока гидросмеси посредством ограждающих и отражающих поверхностей предлагаемой установки. Объектом исследований являлся процесс гидродинамической дезинтеграции. Предмет исследования включал основные параметры гидродинамического воздействия на минеральную среду и характер разрушения высокоглинистых песков в гидродинамических условиях. В ходе работы автором были использованы методы построения математической модели преобразования дисперсоида при гидродинамическом воздействии на гидросмесь, аналитические и численные расчеты. Анализ аспектов гидродинамических явлений и взаимодействий позволил обосновать процесс образования дисперсоида на основе интенсификации микродезинтеграции и выявить характерные факторы влияния. На основе теории изменения термодинамического потенциала системы поверхностей частиц при динамическом воздействии предложен метод определения гидродинамических параметров изменения структурной составляющей гидросмеси в закрытой полости генератора при взаимодействии с элементами ограждающих и отражающих поверхностей. На основе численных расчетов установлено существенное увеличение удельной межфазной поверхности дисперсоида минеральной составляющей. В результате взаимодействия с элементами ограждающих и отражающих поверхностей в предлагаемой инновационной схеме расположения элементов в генераторе при направленной подаче гидросмеси из сопла в закрытую полость увеличение составило от 3 до 4 раз. Предложена новая конструкция гидродинамического генератора  и технологическая схема для обеспечения активизации процесса извлечения микрочастиц ценных компонентов.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of the presented study is to give a theoretical substantiation of the formation process of a high-clay sand dispersoid from placers with a high content of fine and finely dispersed gold under changing hydrodynamic parameters of the hydro mixture flow by means of enclosing and reflecting surfaces of the proposed installation. The object of the research is the process of hydrodynamic disintegration. The subject of the study includes the main parameters of the hydrodynamic effect on the mineral environment and the destruction nature of high-clay sands under hydrodynamic conditions. While doing the research, the author used the methods for constructing a mathematical model of dispersoid transformation under hydrodynamic effect on the hydro mixture, analytical and numerical calculations. The analysis of the aspects of hydrodynamic phenomena and interactions made it possible to substantiate the dispersoid formation process based on the intensification of microdisintegration and to identify the characteristic impact factors as well. Based on the theory of changes in the thermodynamic potential of the system of particle surfaces under dynamic exposure, a method has been proposed for determining the hydrodynamic variation parameters of the hydromixture structural component in the closed cavity of the generator when interacting with the elements of the enclosing and reflecting surfaces. The performed numerical calculations allowed to reveal a significant increase in the specific interphase surface of the dispersoid of the mineral component. The interaction of the elements of enclosing and reflecting surfaces according to the proposed innovative layout of elements location in the generator under the directed supply of the hydromixture from the nozzle into a closed cavity resulted in the increase from 3 to 4 times. A new design of a hydrodynamic generator and a flow diagram have been introduced on order to activate the extraction process of microparticles of valuable components.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>высокоглинистые пески</kwd><kwd>гидродинамические явления</kwd><kwd>микродезинтеграция</kwd><kwd>термодинамический потенциал</kwd><kwd>гидродинамический генератор</kwd><kwd>кавитационный реактор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>high-clay sands</kwd><kwd>hydrodynamic phenomena</kwd><kwd>microdisintegration</kwd><kwd>thermodynamic potential</kwd><kwd>hydrodynamic  generator</kwd><kwd>cavitation reactor</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования проводились с использованием ресурсов Центра коллективного пользования научным оборудованием «Центр обработки и хранения научных данных Дальневосточного отделения Российской академии наук», финансируемого Российской Федерацией в лице Министерства науки и высшего образования Российской Федерации по проекту № 075-15-2021-663</funding-statement><funding-statement xml:lang="en">The research was carried out using the facilities of the Research Equipment Sharing Center "Scientific  Data Processing and Storage Center of the Far Eastern Branch of the Russian Academy of Sciences" funded by the Russian Federation through the Ministry of Science and Higher Education of the Russian Federation under the project  no. 075-15-2021-663</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Евдокимов С. 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