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Analysis of Influencing Factors and Operation Quality Evaluation Strategy of Straw Crushing and Scattering System

Author

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  • Bokai Wang

    (Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
    Key Laboratory of Modern Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China)

  • Fengwei Gu

    (College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)

  • Feng Wu

    (Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
    Key Laboratory of Modern Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China)

  • Junteng Ma

    (Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
    Key Laboratory of Modern Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China)

  • Hongchen Yang

    (Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
    Key Laboratory of Modern Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China)

  • Zhichao Hu

    (Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
    Key Laboratory of Modern Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China)

Abstract

First, through a single factor test, it was determined that the conveying and feeding speed range was 0.9~1.5 m/s, the rotating speed range of straw chopper shaft was 1900~2300 r/min, and the moisture content of straw was 26~34%. Then the Box–Behnken experimental design method was adopted, with conveying and feeding speed, cutter shaft rotation speed, and straw moisture content as influencing factors; small and stable specific power consumption and maximum coverage uniformity are taken as evaluation indexes. The influence rules of various factors on operation indexes were analyzed, and response surface analysis was carried out. Further, the optimization function in Design-Expert12.0 was used to determine the optimal parameter combination as follows: Conveying and feeding speed of 0.8 m/s, rotating speed of cutter shaft of 2059.9 r/min, moisture content of straw of 30.7%, corresponding specific power consumption and coverage uniformity of 1163 J/s 2 and 99.1%, respectively. Finally, the seeding system was mounted behind the straw crushing and scattering system for a field verification test. The results showed that when the crushing and scattering system of the whole machine operates with the design parameters, the specific power consumption was 1260 J/s 2 , the uniformity of straw coverage was 94.7%, and the error with the experimental value was less than 5%. The effect was better than the standard requirement. The test realized the crushing and uniform coverage of high-quality straw residues after rice harvest, which proved the scientific and reliable test-bed of the crushing and scattering system.

Suggested Citation

  • Bokai Wang & Fengwei Gu & Feng Wu & Junteng Ma & Hongchen Yang & Zhichao Hu, 2022. "Analysis of Influencing Factors and Operation Quality Evaluation Strategy of Straw Crushing and Scattering System," Agriculture, MDPI, vol. 12(4), pages 1-21, April.
  • Handle: RePEc:gam:jagris:v:12:y:2022:i:4:p:508-:d:786540
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    References listed on IDEAS

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    1. Junteng Ma & Feng Wu & Huanxiong Xie & Fengwei Gu & Hongchen Yang & Zhichao Hu, 2022. "Uniformity Detection for Straws Based on Overlapping Region Analysis," Agriculture, MDPI, vol. 12(1), pages 1-18, January.
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    Cited by:

    1. Xindan Qiao & Dequan Liu & Xiaolei Wang & Wang Li & Jiawei Wang & Decong Zheng, 2023. "Design and Experiment of Double-Row Seed-Metering Device for Buckwheat Large Ridges," Agriculture, MDPI, vol. 13(10), pages 1-19, October.
    2. Bokai Wang & Feng Wu & Fengwei Gu & Hongchen Yang & Huichang Wu & Zhichao Hu, 2023. "Experimental Analysis and Evaluation of Automatic Control System for Evenly Scattering Crushed Straw," Agriculture, MDPI, vol. 13(3), pages 1-15, March.

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    1. Bokai Wang & Feng Wu & Fengwei Gu & Hongchen Yang & Huichang Wu & Zhichao Hu, 2023. "Experimental Analysis and Evaluation of Automatic Control System for Evenly Scattering Crushed Straw," Agriculture, MDPI, vol. 13(3), pages 1-15, March.

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