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Analysis and Experimental of Seeding Process of Pneumatic Split Seeder for Cotton

Author

Listed:
  • Kezhi Li

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
    Xinjiang Production and Construction Corps, Key Laboratory of Modern Agricultural Machinery, Shihezi 832000, China)

  • Shufeng Li

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
    Xinjiang Production and Construction Corps, Key Laboratory of Modern Agricultural Machinery, Shihezi 832000, China)

  • Xiangdong Ni

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
    Xinjiang Production and Construction Corps, Key Laboratory of Modern Agricultural Machinery, Shihezi 832000, China)

  • Bo Lu

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China)

  • Binqiang Zhao

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China)

Abstract

In order to study the working mechanism and sowing effect of seed delivery pipes and their associated cavity seeders, the factors affecting the sowing test were first derived through pressure loss theory and force analysis of cotton seed particles in the gas-solid coupling field. Secondly, Ansys fluent was used to simulate the flow field of seed delivery pipe joints to study the effect of seed delivery pipe joints on the overall pressure loss and uniformity of air pressure distribution and to determine the optimal structure of seed delivery pipe joints. Then, the EDEM was simulated for the overall seed delivery pipe and its associated cavity seeders in the absence of positive pressure to analyze the transport pattern of each cotton seed. Finally, CFD-DEM gas-solid coupling simulation experiments were conducted on the center of two rows of seed delivery pipes and their connected cavity seeders to analyze the trajectory of cotton seeds under different rotational speeds of cavity seeders and different positive seed delivery pressures and to deeply analyze the causes of Multiple seeding and Miss-seeding. At the same time, the seeding performance was evaluated by coupling simulation values with single seeding rate and multiple seeding rate as seeding performance evaluation indexes and compared with bench test. The results show that in the coupling simulation, when the speed of the cavity seeders is 20~40 rev/min and the seed delivery tube is passed into 50~150 Pa positive pressure airflow, the single seeding rate is not less than 83.06%, and the missed seeding rate is not more than 9.23%. In the bench test, the single seeding rate was not less than 80.64%, and the missed seeding rate was not more than 9.86% under the same cavity seeders speed and positive pressure, and the results of the bench test and the simulation test were close and consistent, which verified the feasibility of the simulation.

Suggested Citation

  • Kezhi Li & Shufeng Li & Xiangdong Ni & Bo Lu & Binqiang Zhao, 2023. "Analysis and Experimental of Seeding Process of Pneumatic Split Seeder for Cotton," Agriculture, MDPI, vol. 13(5), pages 1-21, May.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:5:p:1050-:d:1146037
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    References listed on IDEAS

    as
    1. Bo Lu & Xiangdong Ni & Shufeng Li & Kezhi Li & Qingzheng Qi, 2022. "Simulation and Experimental Study of a Split High-Speed Precision Seeding System," Agriculture, MDPI, vol. 12(7), pages 1-22, July.
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    Cited by:

    1. Xingcheng An & Xiupei Cheng & Xianliang Wang & Yue Han & Hui Li & Lingyu Liu & Minghao Liu & Meng Liu & Xiangcai Zhang, 2023. "Design and Experimental Testing of a Centrifugal Wheat Strip Seeding Device," Agriculture, MDPI, vol. 13(10), pages 1-17, September.
    2. Yuhuan Li & Shuo Zhao & Fazhan Yang & Peng Liu & Baogang Li & Quan Song & Shibin Yan & Xian Li, 2024. "Research on the Flexible Gradual Seed-Cleaning Method of the Brush-Type Single-Seed Soybean Planter," Agriculture, MDPI, vol. 14(3), pages 1-15, March.

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