Formation of Force Chains in the Crushing Zone of Roller Crushers and Strategies for Improving Unit Productivity

Jianxin Wang; Ying Qu; Huanqing Sun

doi:10.6919/ICJE.202511_11(11).0010

Authors

Jianxin Wang
Ying Qu
Huanqing Sun

DOI:

https://doi.org/10.6919/ICJE.202511_11(11).0010

Keywords:

New Roller-Type Vibrating Crusher; EDEM; High-Pressure Roller Mill; Comparative Analysis.

Abstract

Addressing issues such as increased crushing force and energy consumption caused by the formation of force chains within the crushing zone during the operation of roller crushers, a new roller-type vibrating crusher that utilizes vibration to eliminate or reduce the formation of stress chains is proposed. Data is used to illustrate the superiority of this new roller-type vibration crusher, while demonstrating the methodology and support provided by EDEM for solving similar problems. Force reduction: The secondary crushing roller experienced a 57.27% reduction in load compared to high-pressure grinding rolls. The following results were obtained through simulation: Kinetic enhancement: Particle velocity increased by 28.5%, accompanied by a 23.34% rise in crushing ratio.Energy efficiency: Specific energy consumption decreased by 36.83%, while unit productivity surged by 58.3%.

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References

[1] LU Minfeng, TANG Zhaohui, CHAI Bo, et al. Influence of slag particle medium structure on the evolution of force chains [J]. Bulletin of Geological Science and Technology, 2022, 41(4): 274-281.

[2] Dai W ,Qian G ,Yu H , et al. Research on evolution of structural characteristics of force chain network during asphalt mixture compaction process [J]. Case Studies in Construction Materials, 2025, 22 e04468-e04468.

[3] Wu M ,Yang F ,Jiang H , et al. Visualization of particle micro-rotations and strain (force) chain in granular materials using three-dimensional electronic speckle pattern interferometry [J]. Optics and Laser Technology, 2025, 186 112642-112642.

[4] ZOU Zhen, LI Xianglong. Study on particle fragmentation mechanism in large-scale rock debris flow [J]. Shanxi Architecture, 2013, 39(24): 84-87.

[5] CHEN Fanxiu, WANG Rilong, GUO Pengfei, et al. Force chain identification in granular systems and analysis of factors influencing force chain failure [C]. 2017: 1089-1095.

[6] BAO Nuo. Study on particle behavior in material layer compression of roller press [D]. University of Jinan, 2010.

[7] TONG Lijuan, YANG Jichang. Effect of high-pressure roller grinding on ore grindability [J]. Mining Machinery, 2024, 52(7): 31-37.

[8] WANG Jianxin, YANG Ting, DU Zhiqiang. Simulation study on crushing performance of a novel roller-type vibrating crusher based on EDEM [J]. Nonferrous Metals (Mineral Processing Section), 2023, (6): 30-38.

[9] CAI Gaipin, RUAN Liao, LI Yangbo. DEM-MBD coupled simulation and experimental study on layered crushing process of double-roll crusher [J]. China Powder Science and Technology, 2023, 29(5): 92-100.

[10] GUO Nianqin, DING Lingrong, HUANG Dongming. Research on layered crushing model and crushing characteristics [J]. Mining Machinery, 2005, (7): 10-12+4.

[11] Shuwei W ,Shuai W ,Guoqiang W , et al. Study on productivity of eccentric roll crusher based on theory and experiment [J]. Minerals Engineering, 2024, 206

[12] .MENG Qingling, WU Xi, GAO Guanhua, et al. Design and application of mining torque-limiting permanent magnet coupler [J]. Small & Special Electrical Machines, 2024, 52(8): 36-39+43.

[13] GUO Jianbo. Performance analysis and roller surface optimization of high-pressure grinding rolls based on discrete element method [D]. Jilin University, 2023.

[14] GU Zonglin. Simulation analysis of crushing force in large compound pendulum jaw crusher for mining [J]. China-Arab Science and Technology Forum (Chinese and English), 2023, (9): 106-110.

[15] Yuan Z ,Li L ,Han Y , et al. Fragmentation mechanism of low-grade hematite ore in a high pressure grinding roll [J]. Journal of Central South University, 2016, 23 (11): 2838-2844.

[16] FAN Longfei. Dynamic performance analysis and experimental study of eccentric roll crusher [D]. Jilin University, 2023.

[17] .XIE Cunli, TIAN Xiaosong, WANG Feiwang, et al. Research progress on the application of discrete element method in ore crushing [J]. Conservation and Utilization of Mineral Resources, 2024, 44(1): 126-134.

[18] LIU Lei, GAO Wei, LIAO Zechu, et al. Simulation study on high-pressure roller grinding based on discrete element method [J]. Natural Science Journal of Xiangtan University, 2017, 39(2): 76-80.

[19] GUO Zhou. Operational optimization of large mining gyratory crusher based on discrete element method [D]. Central South University, 2023.

[20] Yang F ,Li R ,Wang X , et al. Optimization of working parameters of high-pressure roller mill based on entropy weight method and response surface method. [J]. Scientific reports, 2024, 14 (1): 28238.

[21] Qu Ying. Research on material motion characteristics and crushing performance of roller vibrating crusher[D]. Inner Mongolia University of Science and Technology, 2025.