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Design and Experimental Optimization of Vegetable Surface Residual Film Recycling Machine

INMATEH Agricultural Engineering 2022 7 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 30 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Peng Wang, Xiongwei LIU, Jianming JIAN, Jinyan TIAN, Renjie XING, Shulin HOU

Summary

A vegetable surface residual film recycling machine was designed and optimized to improve recovery of plastic mulch film fragments from agricultural soil after harvest. Box-Behnken experimental design was used to optimize key mechanical parameters for maximum film recovery with minimum soil contamination. Efficient residual film recovery is essential for reducing plastic accumulation in agricultural soils.

To solve the problems such as low film recovery rate and high soil content of the recovered film of the surface residual film recycling machine, the parameters of the vegetable surface residue recycling machine were optimized. After modelling and theoretical analysis of the loosening shovel and film sweeping device, the key structural parameters of the machine were determined. The Box-Behnken Design analysis test results in Design-Expert were used to establish the comprehensive effects of speed, rotational speed, and angle of membrane picking device on the recovery and soil content. Then MATLAB was adopted to analyse the law of the comprehensive influence of three factors on two responses. The most significant factor affecting pickup net rate J was rotational speed Y2, and the most significant factor affecting soil percentage was the angle Y3 of the film picking device. By optimizing the experimental results by Design-Expert, the optimum operating parameters of the machine were obtained as follows: the forward speed of the machine was 3.2 km/h, the revolution speed was 10.5 r/s, the angle of the film picking device was 65.4°, the scavenging rate J and soil rate H of the residual film recycling machine were 87.084% and 10.382%, respectively.

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