Development of Drums for an Axial Flow Maize Shelling Unit

Authors

  • Anuwat Pachanawan Khon Kaen University
  • Somchai Chuan-Udom Khon Kaen University
  • Khunnithi Doungpueng Rajamangala University of Technology Isan

DOI:

https://doi.org/10.4186/ej.2021.25.2.59

Keywords:

drum types, maize shelling unit, Drum types, Maize shelling unit, Threshing unit

Abstract

Shelling drums have an important effect on the performance of machinery used in maize harvesting. This study was aimed to develop axial flow drums for a maize shelling unit. They were 900 mm long and 300 mm in diameter. Comparative maize shelling experiments were carried out with peg-toothed (A), peg-rasp bar-toothed (B), peg-rectangular-toothed (C), and disc peg (D) drums with four levels of concave clearance (CC), 15, 20, 25, and 30 mm and three rotor speeds (RS), 6, 10, and 14 m/s. The results showed that the CC had a significant effect on the shelling efficiency (SE) and total losses (TL), while grain breakage (GB) was not significant.  Furthermore, no interaction was found between the power requirements (P) and the specific energy consumption (SEC), the SE, and the GB.  However, interaction between TL, P, and SEC was found with various drum types and the CC. The RS was found to have a significant effect on the SE, TL, GB, P, and SEC with different drum types. Moreover, the interaction between the drum types and the RS affected shelling at the α=0.05 level. Furthermore, it was found that the Type D drum had higher performance in shelling maize.

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Author Biographies

Anuwat Pachanawan
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Department of Agricultural Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand

Applied Engineering for Important Corps of the Northeast Research Group, Khon Kaen University, Khon Kaen 40002, Thailand

Somchai Chuan-Udom
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Department of Agricultural Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand

Applied Engineering for Important Corps of the Northeast Research Group, Khon Kaen University, Khon Kaen 40002, Thailand

Khunnithi Doungpueng
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Department of Mechanical Industrial Education, Faculty of Industrial Education, Rajamangala University of Technology Isan, Khon Kaen Campus 40000, Thailand

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Published In
Vol 25 No 2, Feb 28, 2021
How to Cite
[1]
A. Pachanawan, S. . Chuan-Udom, and K. Doungpueng, “Development of Drums for an Axial Flow Maize Shelling Unit”, Eng. J., vol. 25, no. 2, pp. 59-70, Feb. 2021.
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