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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.31897/PMI.2022.61</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15815</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15815</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Металлургия и обогащение</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Metallurgy and concentration</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Iron ore beneficiation technologies in Russia and ways to improve their efficiency</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Технологии обогащения железных руд России и пути повышения их эффективности</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Pelevin</surname>
            <given-names>Aleksei E.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Пелевин</surname>
              <given-names>А. Е.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Pelevin</surname>
              <given-names>Aleksei E.</given-names>
            </name>
          </name-alternatives>
          <email>a-pelevin@yandex.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0001-6063-3932</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Уральский государственный горный университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Ural State Mining University (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2022-11-03">
        <day>03</day>
        <month>11</month>
        <year>2022</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2022</year>
      </pub-date>
      <volume>256</volume>
      <fpage>579</fpage>
      <lpage>592</lpage>
      <history>
        <date date-type="received" iso-8601-date="2022-04-20">
          <day>20</day>
          <month>04</month>
          <year>2022</year>
        </date>
        <date date-type="accepted" iso-8601-date="2022-07-21">
          <day>21</day>
          <month>07</month>
          <year>2022</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2022-11-03">
          <day>03</day>
          <month>11</month>
          <year>2022</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2022 А. Е. Пелевин</copyright-statement>
        <copyright-statement xml:lang="en">© 2022 Aleksei E. Pelevin</copyright-statement>
        <copyright-year>2022</copyright-year>
        <copyright-holder xml:lang="ru">А. Е. Пелевин</copyright-holder>
        <copyright-holder xml:lang="en">Aleksei E. Pelevin</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/15815">https://pmi.spmi.ru/pmi/article/view/15815</self-uri>
      <abstract xml:lang="ru">
        <p>Повышение эффективности схем дробления связано с уменьшением крупности мелкодробленой руды и применением сухой магнитной сепарации дробленой руды. Снижение затрат на измельчение достигается путем использования барабанных шаровых мельниц вместе с мельницами других конструкций. Применение систем автоматизации, размагничивания пульп, технологии со стадиальным выделением концентрата и использование в замкнутом цикле измельчения обогатительной операции и тонкого грохочения приводит к уменьшению затрат на измельчение. Основной промышленной технологией повышения качества концентрата является дообогащение концентрата с применением доизмельчения, тонкого грохочения, флотации и магнитно-гравитационных сепараторов. Повышение комплексности использования железорудного сырья связано с увеличением выхода железного концентрата и получением гематитового концентрата при обогащении гематит-магнетитовых руд и ильменитового концентрата при обогащении титаномагнетитовых руд. Увеличение выхода концентрата возможно путем применения в первых стадиях обогащения магнитных сепараторов с повышенной до 0,25-0,5 Тл индукцией магнитного поля. Для получения гематитового и ильменитового концентратов можно применять комбинированные технологии, включающие тонкое грохочение, высокоградиентную магнитную сепарацию, гравитационное, флотационное и электрическое обогащения.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Increasing the efficiency of crushing circuits is associated with a decrease in the particle size of finely crushed ore and the use of dry magnetic separation of crushed ore. Reducing grinding costs is achieved by using drum mills jointly with mills of other designs. The use of automation systems, slurry demagnetization, technologies with staged concentrate separation, and beneficiation and fine screening in a closed grinding cycle lead to a reduction in grinding costs. The main industrial technology for improving the quality of concentrate is its additional beneficiation using regrinding, fine screening, flotation, and magnetic-gravity separators. Increasing the integrated use of iron ore raw materials is associated with an increase in the yield of iron concentrate and the production of hematite concentrate during the beneficiation of hematite-magnetite ores and ilmenite concentrate during the beneficiation of titanomagnetite ores. Incremented concentrate yield is possible by using magnetic separators with an increased magnetic induction up to 0.25-0.5 T in the first stages of beneficiation. To obtain hematite and ilmenite concentrates, combined technologies can be used, including fine screening, high-gradient magnetic, gravity, flotation, and electrical separation.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>железная руда</kwd>
        <kwd>дробление</kwd>
        <kwd>измельчение</kwd>
        <kwd>магнитная сепарация</kwd>
        <kwd>тонкое грохочение</kwd>
        <kwd>размагничивание</kwd>
        <kwd>концентрат</kwd>
        <kwd>флотация</kwd>
        <kwd>технология обогащения</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>iron ore</kwd>
        <kwd>crushing</kwd>
        <kwd>grinding</kwd>
        <kwd>magnetic separation</kwd>
        <kwd>fine screening</kwd>
        <kwd>demagnetization</kwd>
        <kwd>concentrate</kwd>
        <kwd>flotation</kwd>
        <kwd>beneficiation technology</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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