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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">agronauka</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука Евро-Северо-Востока</journal-title><trans-title-group xml:lang="en"><trans-title>Agricultural Science Euro-North-East</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-9081</issn><issn pub-type="epub">2500-1396</issn><publisher><publisher-name>FARC North-East</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30766/2072-9081.2022.23.3.411-416</article-id><article-id custom-type="elpub" pub-id-type="custom">agronauka-1054</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>ОРИГИНАЛЬНЫЕ СТАТЬИ: МЕХАНИЗАЦИЯ, ЭЛЕКТРИФИКАЦИЯ, АВТОМАТИЗАЦИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ОRIGINAL SCIENTIFIC ARTICLES: MECHANIZATION, ELECTRIFICATION, AUTOMATION</subject></subj-group></article-categories><title-group><article-title>Теоретические предпосылки к обоснованию параметров смесителя белковоминерально-витаминных добавок</article-title><trans-title-group xml:lang="en"><trans-title>Theoretical background to substantiation of the parameters of mixer for protein, mineral and vitamin additives</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7290-6299</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Авакимянц</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Avakimyants</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Авакимянц Евгений Вячеславович, аспирант, младший научный сотрудник</p><p>Фильтровское шоссе, д. 3, п. Тярлево, Санкт-Петербург, 196625</p></bio><bio xml:lang="en"><p>Evgeny V. , post-graduate student, junior researcher</p><p>3, Filtrovskoje Shosse, p.o. Tiarlevo, Saint Petersburg, 196625</p></bio><email xlink:type="simple">avakimyants@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт агроинженерных и экологических проблем сельскохозяйственного производства (ИАЭП) – филиал ФГБНУ «Федеральный научный агроинженерный центр ВИМ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute for Engineering and Environmental Problems in Agricultural Production (IEEP) – branch of Federal Scientific Agroengineering Center VIM</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>24</day><month>06</month><year>2022</year></pub-date><volume>23</volume><issue>3</issue><fpage>411</fpage><lpage>416</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Авакимянц Е.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Авакимянц Е.В.</copyright-holder><copyright-holder xml:lang="en">Avakimyants E.V.</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.agronauka-sv.ru/jour/article/view/1054">https://www.agronauka-sv.ru/jour/article/view/1054</self-uri><abstract><p>Для повышения эффективности смешивания белково-минерально-витаминных добавок для КРС возможно применить подход, при котором достигается перевод материала в псевдоожиженное состояние. Исследование направлено на определение теоретических зависимостей скоростных и энергетических характеристик формирования псевдоожиженного слоя от физико-механических свойств смешиваемого материла и конструктивно-кинематических параметров смесителя и выполнялось в 2021 г. Для уточнения характеристик процесса смешивания добавок в режиме псевдоожижения вводится коэффициент структурно-механического сопротивления дисперсной многокомпонентной системы. Получены уравнения, характеризующие скорость перемещения частиц и затраты энергии на обеспечение движения частиц в псевдоожиженном слое под воздействием лопастной мешалки. Для изучения влияния порозности слоя и угла наклона лопасти смесителя на скоростные характеристики движения частиц смеси построено графическое решение уравнения потерь скорости частиц при значении скорости на краю лопасти 5 м/с. Установлено, что изменение порозности слоя оказывает значительное влияние на скорость частиц смеси. Наибольшие потери составляют более 4,5 м/с и наблюдаются при наименьшем значении порозности – 0,14 и наибольшем угле наклона лопасти – 75º. Наименьшие потери составляют менее 0,5 м/с и соответствуют наибольшей порозности – 0,34 и наименьшему углу наклона лопасти – 15º. Таким образом, в рассматриваемых координатах наблюдается снижение скорости частицы на 10-90 %.</p></abstract><trans-abstract xml:lang="en"><p>One way to improve the mixing efficiency of protein-mineral-vitamin additives for cattle diets is to fluidize the material. The aim of the study is to define theoretical dependences between the speed and energy characteristics of the formation of a fluidized bed on the physical and mechanical properties of mixing substances and on structural and kinematic parameters of the mixer. The research was carried out in 2021. A coefficient of structural and mechanical resistance of the disperse many-component system was introduced to clarify the characteristics of additives mixing in the fluidization mode. The obtained equations described the particle velocity and the energy consumption for the particle flow in a fluidized bed influenced by a blade mixer. Next step was to reveal the effect of the layer porosity and the mixer blade angle on the particle velocity in the mixture. The velocity loss equation was solved as a graph for the value of 5 m/s at the blade edge. The variation in the layer porosity had a significant effect on considered parameter. The greatest velocity loss exceeded 4.5 m/s observed at the smallest porosity of 0.14 and the biggest blade angle of 75º. The smallest loss was below 0.5 m/s at the largest porosity of 0.34 and the smallest blade angle of 15º. Thus, the decrease in the particle velocity by 10 to 90 % was observed in the considered coordinates.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>смешивание</kwd><kwd>лопастной смеситель</kwd><kwd>псевдоожиженное состояние</kwd><kwd>кормовая добавка</kwd><kwd>кормосмесь</kwd><kwd>физико-механические характеристики</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mixing</kwd><kwd>blade mixer</kwd><kwd>fluidized state</kwd><kwd>feed additive</kwd><kwd>feed mix</kwd><kwd>physical and mechanical properties</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Минобрнауки РФ в рамках Государственного задания ФГБНУ «Федеральный научный агроинженерный центр ВИМ» (№ FGUN-2022-0010). Автор благодарит рецензентов за их вклад в экспертную оценку этой работы.</funding-statement><funding-statement xml:lang="en">The research was carried out under the support of the Ministry of Science and Higher Education of the Russian Federation within the state assignment of the Federal Scientific Agroengineering Center VIM (theme No. FGUN-2022-0010). The author thanks the reviewers for their contribution to the expert evaluation of this work.</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">Westphalen M. F., Carvalho Pedro H. V., Joonpyo Oh., Hristov A. N., Staniar W. B., Felix T. L. Effects of feeding rumen-protected Capsicum oleoresin on growth performance, health status, and total tract digestibility of growing beef cattle. Animal Feed Science and Technology. 2021;271:114778. 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