Design and Testing of Key Components for a Multi-Stage Crushing Device for High-Moisture Corn Ears Based on the Discrete Element Method
To improve the crushing efficiency and crushing pass rate of high-moisture corn ears (HMCEs), a multi-stage crushing scheme is proposed in this paper. A two-stage crushing device for HMCEs is designed, and the ear crushing process is analyzed. Firstly, a simulation model for HMCEs was established in...
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2024-10-01
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| author | Chunrong Li Zhounan Liu Min Liu Tianyue Xu Ce Ji Da Qiao Yang Wang Limin Jiang Jingli Wang Weizhi Feng |
| author_facet | Chunrong Li Zhounan Liu Min Liu Tianyue Xu Ce Ji Da Qiao Yang Wang Limin Jiang Jingli Wang Weizhi Feng |
| author_sort | Chunrong Li |
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| description | To improve the crushing efficiency and crushing pass rate of high-moisture corn ears (HMCEs), a multi-stage crushing scheme is proposed in this paper. A two-stage crushing device for HMCEs is designed, and the ear crushing process is analyzed. Firstly, a simulation model for HMCEs was established in EDEM software (2018), and the accuracy of the model was verified by the shear test. Subsequently, single-factor simulation experiments were conducted, with the crushing rate serving as the evaluation index. The optimal working parameter ranges for the HMCE device were identified as a primary crushing roller speed of 1200–1600 revolutions per minute (r/min), a secondary crushing roller clearance of 1.5–2.5 mm, and a secondary crushing roller speed of 2750–3750 r/min. A Box–Behnken experiment was conducted to establish a multiple regression equation. With the objective of maximizing the qualified crushing pass rate, the optimal combination of parameters was revealed: a primary crushing roller speed of 1500 r/min, a secondary crushing roller clearance of 2.5 mm, and a secondary crushing roller speed of 3280 r/min. The pass rate of corn cob crushing in the simulation test was 98.2%. The physical tests, using the optimized parameter combination, yielded a qualified crushing rate of 97.5%, which deviates by 0.7% from the simulation results, satisfying the requirement of a qualified crushing rate exceeding 95%. The experimental outcomes validate the rationality of the proposed crushing scheme and the accuracy of the model, providing a theoretical foundation for subsequent research endeavors. |
| format | Article |
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| language | English |
| publishDate | 2024-10-01 |
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| spelling | doaj-art-efa6e482be544c14aad2a32d1d3727e72025-08-20T01:47:44ZengMDPI AGApplied Sciences2076-34172024-10-011419910810.3390/app14199108Design and Testing of Key Components for a Multi-Stage Crushing Device for High-Moisture Corn Ears Based on the Discrete Element MethodChunrong Li0Zhounan Liu1Min Liu2Tianyue Xu3Ce Ji4Da Qiao5Yang Wang6Limin Jiang7Jingli Wang8Weizhi Feng9College of Engineering and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Engineering and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Engineering and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Engineering and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Engineering and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Engineering and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Biological and Agricultural Engineering, Jilin University, Changchun 130021, ChinaCollege of Engineering and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Engineering and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Engineering and Technology, Jilin Agricultural University, Changchun 130118, ChinaTo improve the crushing efficiency and crushing pass rate of high-moisture corn ears (HMCEs), a multi-stage crushing scheme is proposed in this paper. A two-stage crushing device for HMCEs is designed, and the ear crushing process is analyzed. Firstly, a simulation model for HMCEs was established in EDEM software (2018), and the accuracy of the model was verified by the shear test. Subsequently, single-factor simulation experiments were conducted, with the crushing rate serving as the evaluation index. The optimal working parameter ranges for the HMCE device were identified as a primary crushing roller speed of 1200–1600 revolutions per minute (r/min), a secondary crushing roller clearance of 1.5–2.5 mm, and a secondary crushing roller speed of 2750–3750 r/min. A Box–Behnken experiment was conducted to establish a multiple regression equation. With the objective of maximizing the qualified crushing pass rate, the optimal combination of parameters was revealed: a primary crushing roller speed of 1500 r/min, a secondary crushing roller clearance of 2.5 mm, and a secondary crushing roller speed of 3280 r/min. The pass rate of corn cob crushing in the simulation test was 98.2%. The physical tests, using the optimized parameter combination, yielded a qualified crushing rate of 97.5%, which deviates by 0.7% from the simulation results, satisfying the requirement of a qualified crushing rate exceeding 95%. The experimental outcomes validate the rationality of the proposed crushing scheme and the accuracy of the model, providing a theoretical foundation for subsequent research endeavors.https://www.mdpi.com/2076-3417/14/19/9108high-moisture corn earcrushingcrushing deviceDEM |
| spellingShingle | Chunrong Li Zhounan Liu Min Liu Tianyue Xu Ce Ji Da Qiao Yang Wang Limin Jiang Jingli Wang Weizhi Feng Design and Testing of Key Components for a Multi-Stage Crushing Device for High-Moisture Corn Ears Based on the Discrete Element Method Applied Sciences high-moisture corn ear crushing crushing device DEM |
| title | Design and Testing of Key Components for a Multi-Stage Crushing Device for High-Moisture Corn Ears Based on the Discrete Element Method |
| title_full | Design and Testing of Key Components for a Multi-Stage Crushing Device for High-Moisture Corn Ears Based on the Discrete Element Method |
| title_fullStr | Design and Testing of Key Components for a Multi-Stage Crushing Device for High-Moisture Corn Ears Based on the Discrete Element Method |
| title_full_unstemmed | Design and Testing of Key Components for a Multi-Stage Crushing Device for High-Moisture Corn Ears Based on the Discrete Element Method |
| title_short | Design and Testing of Key Components for a Multi-Stage Crushing Device for High-Moisture Corn Ears Based on the Discrete Element Method |
| title_sort | design and testing of key components for a multi stage crushing device for high moisture corn ears based on the discrete element method |
| topic | high-moisture corn ear crushing crushing device DEM |
| url | https://www.mdpi.com/2076-3417/14/19/9108 |
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