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author：

Jin, A. (Jin, A..) [1] | Li, M. (Li, M..) [2] | Sun, H. (Sun, H..) [3] | Zhao, L. (Zhao, L..) [4] | Jia, J. (Jia, J..) [5] | Zhao, Y. (Zhao, Y..) [6]

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Scopus

Abstract：

The　study　of　crushing　characteristics　of　irregular　single　ore　particles　is　considered　crucial　for　understanding　the　secondary　fragmentation　mechanism,　predicting　particle　gradation,　and　optimizing　the　gravity　flow　of　ore　particles.　This　study　introduces　a　numerical　simulation　approach　for　single　particle　compression　crushing　utilizing　the　Breakable　Voronoi　block　model　(BVBM).　The　paper　examines　the　influence　of　various　parameters　including　ball　diameter,　loading　speed,　softening　tensile　strength　factor,　softening　factor,　and　BVBM　size　on　the　crushing　behavior　of　ore　particles.　It　provides　a　suggested　value　range　for　each　meso-parameter　suitable　for　single　particle　modeling　and　crushing　characteristics　research.　Additionally,　the　paper　describes　the　evolution　of　BVBM　crushing　mode,　the　total　number　of　cracks,　and　the　number　of　contact　bonds　under　the　influence　of　different　softening　factors.　Soft　rock　particles　with　high　softening　factors　exhibit　more　significant　softening　behavior　and　ductility　compared　to　hard　rock　particles　with　low　softening　factors.　©　2024

Keyword：

Breakable Voronoi block model Crushing characteristics Discrete element modeling Single ore particle Soft bond contact model

Community：

  • [ 1 ] [Jin A.]Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 2 ] [Jin A.]School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 3 ] [Li M.]Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 4 ] [Li M.]School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 5 ] [Li M.]Suzhou Sinoma Design and Research Institute of Non-metallic Minerals Industry Co., Ltd., Suzhou, 215151, China
  • [ 6 ] [Sun H.]Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 7 ] [Sun H.]School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 8 ] [Zhao L.]Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 9 ] [Zhao L.]School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 10 ] [Jia J.]Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 11 ] [Jia J.]School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, 100083, China
  • [ 12 ] [Zhao Y.]Zijin School of Geology and Mining, Fuzhou University, Fuzhou, 350108, China

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Powder Technology

ISSN： 0032-5910

Year： 2024

Volume： 445

4 . 5 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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