CFD-Based Study on the Airflow Field in the Crushing Chamber of 9FF Square Bale Corn Stalk Pulverizer

Jie Zhang, Xiang Tian, Chao Zhao, Xiuzhen Yu, Shiguan An, Rui Guo () and Bin Feng ()
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Jie Zhang: Institute of Agricultural Mechanization, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
Xiang Tian: Institute of Agricultural Mechanization, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
Chao Zhao: Institute of Agricultural Mechanization, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
Xiuzhen Yu: Institute of Agricultural Mechanization, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
Shiguan An: Institute of Agricultural Mechanization, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
Rui Guo: Route Department, Xinjiang Division, China Southern Airlines Technical Branch, Urumqi 830002, China
Bin Feng: Institute of Agricultural Mechanization, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China

Agriculture, 2024, vol. 14, issue 2, 1-20

Abstract: During the steady operation of the 9FF square bale corn stalk pulverizer, the rapidly rotating spindle drives the hammers and impellers to form a complicated airflow field environment in the crushing chamber. The flow field characteristics in the crushing chamber can affect the motion law of stalks, thus influencing the pulverizing effect of the hammer blades on stalks and the ejection of materials. Based on establishing the Computational Fluid Dynamics (CFD) calculation model of the crushing chamber in the 9FF square bale corn stalk pulverizer, in this paper, the effect of three groups of components, such as the hammer rack and blades, hammer rack and blades and the sieve, as well and the sieve and the impeller, on the distribution characteristics of airflow field in the crushing chamber. The simulation results show that the hammer piece group, screen, and impeller in the crushing room can effectively improve the crushing quality of materials, with the crushing efficiency and conveying efficiency at the highest speed of 3000 r/min.

Keywords: square bale corn stalks; pulverizer; airflow field; CFD (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
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