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Design of and Experiment on a Cleaning Mechanism of the Pneumatic Single Seed Metering Device for Coated Hybrid Rice

Author

Listed:
  • Siyu He

    (Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
    Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China)

  • Ying Zang

    (Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
    Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
    Guangdong Provincial Key Laboratory of Agricultural Artificial Intelligence (GDKL-AAI), Guangzhou 510642, China
    Maoming Branch, Guangdong Laboratory for Modern Agriculture, Maoming 525000, China)

  • Zishun Huang

    (Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
    Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China)

  • Wanyan Tao

    (Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
    Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China)

  • He Xing

    (College of Information Technology and Engineering, Guangzhou College of Commerce, Guangzhou 511363, China)

  • Wei Qin

    (Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
    Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China)

  • Youcong Jiang

    (Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
    Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China)

  • Zaiman Wang

    (Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
    Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
    Guangdong Provincial Key Laboratory of Agricultural Artificial Intelligence (GDKL-AAI), Guangzhou 510642, China
    Maoming Branch, Guangdong Laboratory for Modern Agriculture, Maoming 525000, China)

Abstract

In order to improve the single-grain seeding rate of the pneumatic single seed metering device, an airflow seed cleaning device was designed in combination with positive pressure airflow. The influence of the position of the seed cleaning mechanism on the seed cleaning effect is theoretically analyzed and a flow field simulation test analysis of different nozzle structures was carried out by using Fluent software (ANSYS, Inc., Canonsburg, PA, USA). The results of this test show that a nozzle with a Witoszynski curve has good airflow concentration and uniform air pressure distribution. In order to verify the performance of the seed cleaning mechanism, a 0.7 times coated seed (hybrid rice Wuyou 1179) was used as the test material and a quadratic regression test with three levels was carried out with the rotation speed of the seed plate, the negative pressure of the suction chamber, and the positive pressure of the seed cleaning as the test factors. The results showed that when the speed of sucking plate was 30 r/min, the negative pressure of the suction chamber was 1.8 kPa and the positive pressure of the seed cleaning was 0.2 kPa; the seeding effect was at its best and the qualified rate of the seed metering device was the highest at 86.43%, the minimum leakage rate was 3.81%, and the multiple rate was 9.76%. The proposed seed cleaning mechanism effectively improves the accuracy of seeding and provides a certain theoretical basis for the single-grain sowing of hybrid rice.

Suggested Citation

  • Siyu He & Ying Zang & Zishun Huang & Wanyan Tao & He Xing & Wei Qin & Youcong Jiang & Zaiman Wang, 2022. "Design of and Experiment on a Cleaning Mechanism of the Pneumatic Single Seed Metering Device for Coated Hybrid Rice," Agriculture, MDPI, vol. 12(8), pages 1-17, August.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:8:p:1239-:d:890339
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    References listed on IDEAS

    as
    1. Irfan Afzal & Talha Javed & Masoume Amirkhani & Alan G. Taylor, 2020. "Modern Seed Technology: Seed Coating Delivery Systems for Enhancing Seed and Crop Performance," Agriculture, MDPI, vol. 10(11), pages 1-20, November.
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