Separation and cleaning of Leymus chinensis seed threshing material based on gas-solid coupling
Keywords:
cleaning performance, gas-solid coupling, Leymus chinensis seeds, numerical simulation, separation and cleaningAbstract
The aim of this study was to improve the cleaning performance of the Leymus chinensis seed threshing material separation and cleaning device, and to clarify the movement law and characteristics of the Leymus chinensis seed threshing material during the cleaning process. A numerical simulation of the separation and cleaning process of Leymus chinensis seed threshing material was performed using the computational fluid dynamics¬ discrete element approach. According to the streamline distribution of the gas-solid coupling, the movement of Leymus chinensis seeds during the cleaning process was examined. Additionally, the average speed and quantity of Leymus chinensis seed threshing material in different separation and cleaning zones were studied over time. Meanwhile, the distribution principle of the threshing material was obtained, and a verification test of the under-sieve distribution was conducted. The test results showed that the numerical simulation was consistent with the distribution trend of the under-sieve. The cleaning performance verification test showed that the impurity content and the loss rate of the separation and cleaning device were 27.3% and 3.3%, where the test results, compared with those of the numerical simulation, showed a reduction of 1.5% and 0.8%, respectively. It is feasible to apply the theory and method of gas-solid coupling to simulate the separation and cleaning process of Leymus chinensis seeds. Keywords:cleaning performance, gas-solid coupling, Leymus chinensis seeds, numerical simulation, separation and cleaning DOI: 10.25165/j.ijabe.20231605.8140 Citation: Ma Z Y, Wan Q H, Liu W W, Zhang Y Z, Bu K, Du W L, et al. Separation and cleaning of Leymus chinensis seed threshing material based on gas-solid coupling. Int J Agric & Biol Eng, 2023; 16(5): 283–290.References
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[2] Ren X H, Wang J, Ma X F. High-yielding cultivation and efficient utilization of Leymus chinensis. Journal of Animal Science and Veterinary Medicine, 2018; 37(2): 81–82, 84. (in Chinese)
[3] Zhao X, Yang C. Analysis and countermeasures of forage seed production in China. Agricultural Outlook, 2020; 16(3): 56–61. (in Chinese)
[4] Li G L. Probe into the application prospect of the advanced technique and equipment for harvesting and processing herbage seed. Pratacultural Science, 1999; 6: 3–5. (in Chinese)
[5] Li B, Sun Q Z, Li F Y. Studies on harvesting methods for seed production of four perennial forage grasses species. Journal of Anhui Agricultural Sciences, 2008; 16: 6722–6724. (in Chinese)
[6] Li B F. Agricultural mechanics. Beijing. China Agriculture Press, 2003. (in Chinese)
[7] Chen M, Jin C Q, Ni. Y L, Yang T X, Zhang G Y. Online field performance evaluation system of a grain combine harvester. Computers and Electronics in Agriculture, 2022; 198: 107047.
[8] Wen L, Yao Y M, Yang Y. Constitution analysis of invention patent technology for combine harvester in China. Chinese Agricultural Mechanization, 2017; 38(3): 131–136.
[9] Zhang K P, Fan H P, Sun B G, Chai Q. The CFD-DEM gas-solid coupling simulation and experimental verification of cleaning device of wheat combine harvester for intercropping system. Agricultural Research in the Arid Areas, 2019; 37(1): 268–274. (in Chinese)
[10] Ma L C, Wei L B, Pei X Y, Zhu X S, Xu D R. CFD-DEM simulations of particle separation characteristic in centrifugal compounding force field. Powder Technology, 2019; 343: 11–18.
[11] Dai F, Song X F, Guo W J, Zhao W Y, Zhang F W, Zhang S L. Simulation and test on separating cleaning process of flax threshing material based on gas–solid coupling theory. Int J Agric & Biol Eng, 2020; 13(1): 73–81. doi: 10.25165/j.ijabe.20201301.5196.
[12] Feng X, Gong Z P, Wang L J, Yu Y T, Liu T H, Song L L. Behavior of maize particle penetrating a sieve hole based on the particle centroid in an air-screen cleaning unit. Power Techonology, 2021; 385: 501-516.
[13] Li H C,Li, Y M,Gao F,Zhao Z,Xu, L Z. CFD-DEM simulation of material motion in air-and-screen cleaning device. Computers & Electronics in Agriculture. 2012; 111-119.
[14] Gao Y P, Song L L, Wang L J, Wang H S, Li Y H. Behavior of maize grains on the three-dimensional translational vibrating sieve. Powder Technology. 2022; 117999.
[15] Ding B H, Liang Z W, Qi Y Q, Ye Z K, Zhou J H. Improving cleaning performance of rice combine harvesters by DEM-CFD coupling technology. Agriculture, 2022; 12(9): 1-19.
[16] da Silva R C, Cordeiro Júnior J J F, Pandorfi, H, Vigoderis, R B, Guiselini C. Simulation of Ventitation systems in a protected environment using computational fluid dynamics. Engenharia Agrícola, 2017; 37(3): 414–425.
[17] Hu G M. Analysis and simulation of granular system by discrete element method using EDEM. Wuhan. Wuhan University of Technology Press, 2010. (in Chinese)
[18] Yu A B, Wright B, Zhou Z Y, Zhu H P, Zulli P. Discrete particle simulation of gas–solids flow in a blast-furnace. Computers & Chemical Engineering, 2008; 32: 1760–1772.
[19] Finnemore E J, Franzini J B. Fluid mechanics with engineering applications. McGraw-Hill, 2002.
[20] Zhu P F. Simulation research on grain air-and-screen cleaning process and optimization of key parameters. Hangzhou, China: Zhejiang University, 2019.
[21] Casarsa L, Giannattasio P. Experimental study of the three-dimensional flow field in cross-flow fans. Experimental Thermal and Fluid Science, 2011; 35(6): 948–959.
[22] Li H C, Li Y M, Tang Z, Xu L Z. Numerical simulation of material motion on vibrating screen of air-and- screen cleaning device based on CFD-DEM. Transactions of the CSAM, 2012; 43(2): 79–84. (in Chinese)
[23] Li J. Research of three-dimensional parallel vibrating screen for grain cleaning. Zhenjiang, People’s Republic of China: Jiangsu University, 2013. (in Chinese)
[24] Yu W J, Wu R M, Li H. The numerical simulation on temperature field inside the radiation de-enzyme machine based on Fluent-EDEM coupling. Food and Machinery, 2019; 35(8): 104–109, 12. (in Chinese)
[25] Wang L J, Ma Y, Feng X, Song L L, Chai J. Design and experiment of segmented vibrating screen in cleaning device of maize grain harvester. Transactions of the CSAM, 2020; 51(9): 89–100. (in Chinese)
[26] Ma Z Y, Wan Q H, Chen W X, Bu K, Yang J Z, Du W L. Design and testing of air-and-screen cleaning device for Leymus chinensis seed threshing material. Journal of Chinese Agricultural Mechanization, 2022; 43(8): 96-105,127. (in Chinese)
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Published
2023-12-29
How to Cite
Ma, Z., Wan, Q., Liu, W., Zhang, Y., Bu, K., & Du, W. (2023). Separation and cleaning of Leymus chinensis seed threshing material based on gas-solid coupling. International Journal of Agricultural and Biological Engineering, 16(5), 283–290. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/8140
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Agro-product and Food Processing Systems
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