Design and Performance Evaluation of Grain Feed Grinding Machine

Abstract

The importance of milling grains into fine flours has a full advantage for homogeneity and size reduction for feed suitability. The grinding technology was made with locally available and affordable materials. Milling technology is promised technology mainly proposed for fish feed and can be used for any animals feed production that has been made with the factors considered in design standard and material properties. The hammer mill blades are replaceable or can regrind easily if they were worn out. This machine was designed and constructed for crushing locally available grains of maize, sorghum, wheat, barley, and other gains mainly for fish. And the parameters have been analyzed using statistix 8.0 software tool with different sieve hole-sizes (1 mm, 2 mm, and 3 mm) with corresponding independent variables; mass before and after grinding, grinding time, actual capacity, and crushing efficiency. The coefficient of variation of maize, wheat, and sorghum in respective sieve sizes for the grinding time and crushing efficiency was within the range of acceptable value of less than 7%. The power required for the milling has been determined 3000 W and the rotor speed was stepped up to 1800 rpm. The maximum capacity and crushing efficiency of this mill machine for different grains range from 65-78 kg h-1 and 90-95% respectively.

Keywords

• Hammer mill
• Blade shape
• Sieve size
• Efficiency

Supporting Institution

Ethiopian Institute of Agricultural Research

Project Number

26-05

Thanks

To the reviewers of TJAER for your time to review my research paper.

References

1. Adekomaya O and Samuel O (2014). Design and development of a petrol-powered hammer mill for ruralnigerian farmers. Journal of Energy Technologies and Policy, 4(4): 65-72.
2. Admasu F, Getahun A and Wakjira M (2019). The process of tilapia feed formulation and implementation in pond aquaculture: low cost and locally available ingredients option for small-scale farmers. Journal of Agriculture and Aquaculture, 1(2).
3. Ajaka E and Adesina A (2014). Design, fabrication, and testing of a laboratory size hammer mill. International Journal of Engineering and Advanced Technology Studies, 2(2): 11-21.
4. Aboud BA (2012). The effect of sieve holes and types of grains on some performance indicators of hammer mill. Diyala Agricultural Sciences Journal, 1(4): 181-188.
5. Ebunilo PO, Obanor A.I and Ariave GO (2010). Design and preliminary testing of a hammer mill with end section lift capability suitable for a commercial processing of grains and solid minerals for in Nigeria. International Journal of Engineering Science and Technology, 2(6): 1581-1593.
6. Ezurike OB, Osazuwa JO, Okoronkwo AC and Okoji IK (2018). Design, construction and performance evaluation of a flat screen hammer mill machine. African Journal of Science, Technology, Innovation and Development, 10(6): 683-690.
7. Gashaw G (2018). Fisheries commitee for the West Centeral Gulf Guinea from Ethiopia: Attempt to up livestock, fishery sector: http://allafrica.com/stories/201801310946.htm (07/01/2022).
8. Gupta J and Khurmi R (2005). A text-book of machine design elements. Eurasia Publishing House, New Delhi.

9. Higgs D and Hasting W (2011). FAO-Food and Agricultural Organization. https://www.fao.org/3/x5738e/x5738e0j.htm#2.%20grinding
10. Mohamed T, Radwan H, Elashhab A and Adly M (2015). Design and evalute of small-scale hammer mill. Egypt Journal of Agricultural Research, 93(5): 481-493.
11. Nisbett K and Richard B (2010). Shigley's mechanical engineering design. United States: McGraw-Hill science, New York.
12. Stephens and Richard C (2005). Mechanics of machines. Edward Arnold, New York.
13. Suresh V (2018). Fish nutrition feed resaecrh: scope and challanges ahead. ICAR-Central Marine Fisheries Research, 23(1): 78-81.
14. Tesfahun A (2018). Review in current problems of Ethiopia fishery: In case of human and natural associated impacts on water bodies. International Journal of Fisheries and aquatic Studies, 6(2): 94-99.
15. Zhou K (2018). Feed processing technology Effect of grinding particle size on feed quality. https://www.viv.net