American Journal of Modern Energy
Volume 3, Issue 6, December 2017, Pages: 136-145
Received: Oct. 15, 2017;
Accepted: Oct. 31, 2017;
Published: Dec. 5, 2017
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Tanko Bako, Department of Agricultural and Environmental Engineering, University of Agriculture, Makurdi, Nigeria
John Okanagba Awulu, Department of Agricultural and Environmental Engineering, University of Agriculture, Makurdi, Nigeria
Anebi Joseph Garba, Department of Agricultural and Environmental Engineering, University of Agriculture, Makurdi, Nigeria
Oil is extracted from fish and fish by-products by solvent extraction, wet rendering, dry (steam) rendering and wet pressing methods. The method of rendering commonly used in extracting fish oils employs high temperatures, which increase the susceptibility of the extracted oil to thermal degradation. Solvent extraction is not a recommended option for extraction of food-grade fish oils due to the toxic nature of the extraction chemicals. Also, the equipment used for solvent extraction is complex and expensive. Based on this a motorized horizontal screw type fish oil extracting machine is being designed to solve this problem. This machine takes into consideration the dangers, hazards and risks involved in solvent extraction which will be efficient, productive, environmentally friendly, less laborious, easy to use and ergonomic, easy to assemble and disassemble, and most importantly, cost effective in production, maintenance and repairs. The extracting unit consists of an auger with decreasing pitches and a conical choke at the cake exit. The results of the analysis show that the screw press design is safe and the deformations are negligible when the loads are applied.
John Okanagba Awulu,
Anebi Joseph Garba,
Conceptual Design of a Fish Oil Extracting Machine, American Journal of Modern Energy.
Vol. 3, No. 6,
2017, pp. 136-145.
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