Optimization of corn screening device based on high-precision aerodynamic model.

Mechanized agriculture is the foundation of large-scale agriculture. However, in current mechanized corn cultivation, the cleaning efficiency during the cleaning phase is poor due to design defects, which in turn reduces its yield. Therefore, this study proposed an optimization of the corn screening device based on high-precision aerodynamic models. 3D modeling was used to explore the parameter optimization of the corn cleaning devices from an aerodynamic point of view, and certain improvements were made to the fish scale sieve structure. The results indicated that the cleaning efficiency was related to airflow velocity, vibration frequency, and the opening of the fish scale sieve. The optimal wind speed was 16 m/s, and the separation efficiency currently was 94.27%. The optimal vibration frequency was 8 Hz, and the separation efficiency currently was 97.24%. The optimal opening of the fish scale sieve was 26 mm, at which point the screening efficiency reached 100%. The optimized fish scale sieve reduced blockage by 63.7% compared to the traditional fish scale sieve, and ultimately achieved an impurity content of 1.4% with an improvement of 81.3%. In summary, the optimization plan proposed by this research can effectively improve the cleaning efficiency of corn and promote agricultural production and efficiency. [ABSTRACT FROM AUTHOR]