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Design and Test of Stripping and Impurity Removal Device for Spring-Tooth Residual Plastic Film Collector

Author

Listed:
  • Qiangji Peng

    (Shandong Academy of Agricultural Machinery Sciences, Jinan 250010, China
    Huang Huai Hai Key Laboratory of Modern Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Jinan 250010, China)

  • Kaikai Li

    (Shandong Academy of Agricultural Machinery Sciences, Jinan 250010, China
    School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China)

  • Xiaoyu Wang

    (Shandong Academy of Agricultural Machinery Sciences, Jinan 250010, China
    Huang Huai Hai Key Laboratory of Modern Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Jinan 250010, China)

  • Guohai Zhang

    (School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China)

  • Jianming Kang

    (Shandong Academy of Agricultural Machinery Sciences, Jinan 250010, China
    Huang Huai Hai Key Laboratory of Modern Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Jinan 250010, China)

Abstract

The residual agricultural plastic film in China is not easily recovered due to the thinness and poor mechanical properties of domestic films, and a large amount of plastic film remaining in farmland soil poses a great threat to soil quality and crop production. A spring-tooth residual plastic film collector (SRPFC) is widely used in domestic residual plastic film (RPF) recycling operations. However, there are two major problems in the current SRPFC: the low recovery rate of the residual film (RRRF) caused by the difficulty of film-stripping and the high impurity rate in the film (IRF). In this paper, a stripping and impurity removal device (SIRD) is designed to address the existing problems of SRPFC, which is mainly composed of film-stripping tooth plates (FTP), two wind-collecting hoods, and two centrifugal fans. The motion and force analysis of the RPF in the film-stripping process was carried out, and the arc FTP was determined to be used for film-stripping. The size parameters of the FTP were obtained by establishing the coordinate system to solve the differential equation. By comparing and analyzing the force of RPF in the airflow field of the test bench for suspension speed and the airflow field of the wind-collecting hood, the RPF equivalent particle was established. The discrete phase model (DPM) in Fluent software was used to simulate the movement of the RPF equivalent particle, and the calculated air volume range of the centrifugal fan was 5501.88~6829.92 m 3 /h. The effects of forward speed, rotating speed of film conveying chain harrow (FCCH), and rotating speed of the centrifugal fan on RRRF and IRF were studied by orthogonal rotary combination experiment. The test results showed that the best combination of machine operation parameters was when the forward speed was 5 km/h, the rotating speed of the FCCH was 235 r/min, and the rotating speed of the centrifugal fan was 1978 r/min. Under these conditions, the RRRF was 92.53%, and the IRF was 9.31%. Field experiments were carried out with the rounded parameters, and the average RRRF was 92.07%, and the average IRF was 9.56% under the parameter combination, indicating that the optimization scheme of the device was feasible.

Suggested Citation

  • Qiangji Peng & Kaikai Li & Xiaoyu Wang & Guohai Zhang & Jianming Kang, 2022. "Design and Test of Stripping and Impurity Removal Device for Spring-Tooth Residual Plastic Film Collector," Agriculture, MDPI, vol. 13(1), pages 1-17, December.
    • Handle: RePEc:gam:jagris:v:13:y:2022:i:1:p:42-:d:1013366
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    References listed on IDEAS

    as
    1. Lianjie Han & Wei Yuan & Jinjin Yu & Jiajun Jin & Dongshen Xie & Xiaobo Xi & Yifu Zhang & Ruihong Zhang, 2022. "Simulation and Experiment of Spiral Soil Separation Mechanism of Compound Planter Based on Discrete Element Method (DEM)," Agriculture, MDPI, vol. 12(4), pages 1-15, April.
    2. Teng Wu & Fanting Kong & Lei Shi & Qing Xie & Yongfei Sun & Changlin Chen, 2022. "Power Consumption Influence Test of Castor Disc-Cutting Device," Agriculture, MDPI, vol. 12(10), pages 1-14, September.
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