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Optimization of Lifter Bar in Semi-Autogenous Grinding Mill Liner Design Based on Discrete Element Method
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Xin FANG1, Yu LIU2, 3, Maolin LI2, 3, Lilong HUANG2, 3, Cong LUO1, Liangwei LI1, Caibin WU1
Mining and Metallurgical Engineering | 2025, 45(2) : 69 - 75
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Mining and Metallurgical Engineering | 2025, 45(2): 69-75
• MINERAL PROCESSING •
Optimization of Lifter Bar in Semi-Autogenous Grinding Mill Liner Design Based on Discrete Element Method
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Xin FANG1, Yu LIU2, 3, Maolin LI2, 3, Lilong HUANG2, 3, Cong LUO1, Liangwei LI1, Caibin WU1
Affiliations
  • 1.School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
  • 2.Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
  • 3.Hunan Jinmo Technology Co., Ltd., Changsha 400012, Hunan, China
Published: 2025-04-01 doi: 10.3969/j.issn.0253-6099.2025.02.012
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The parameters of lifter bars in the design of a Φ12.2 m×6.7 m semi-autogenous grinding (SAG) mill liner for the Las Bambas concentrator in Peru were optimized by employing discrete element method, and a quadratic regression model was constructed based on response surface analysis to investigate the effect of various factors on total collision energy and energy dispersion. The results indicate that lifter height has a significant impact on particle motion behavior, and it can alter drop height, particle trajectory and moving range, thereby impacting the collision energy during grinding process. The face angle and width of lifter can influence the distribution of collision energy by adjusting particle positions in the cascading and grinding zones. Based on a comprehensive consideration, the optimal lifter parameters are finally determined as follows: height of 380 mm, width of 100 mm, and face angle of 30°.

mill  /  liner  /  grinding  /  semi-autogenous grinding (SAG)  /  discrete element method  /  response surface  /  lifter bar  /  structural optimization
Xin FANG, Yu LIU, Maolin LI, Lilong HUANG, Cong LUO, Liangwei LI, Caibin WU. Optimization of Lifter Bar in Semi-Autogenous Grinding Mill Liner Design Based on Discrete Element Method[J]. Mining and Metallurgical Engineering, 2025 , 45 (2) : 69 -75 . DOI: 10.3969/j.issn.0253-6099.2025.02.012
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.02.012
  • Receive Date：2024-10-19
  • Online Date：2026-03-19
  • Published：2025-04-01
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  • Received：2024-10-19
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Affiliations
    1.School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
    2.Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
    3.Hunan Jinmo Technology Co., Ltd., Changsha 400012, Hunan, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2025.02.012
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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