Development of a Coconut Shell Milling Machine for the Extraction of Mosquito Repellent Compounds

Uswatul Hasanah Mihdar, Dermawan Dermawan, Ahmad Nurul Muttaqin, A. Ariputra

Abstract


This research aims to design and test a coconut shell grinding machine using a hammer mill. This machine was designed with the aim of increasing efficiency in the process of grinding coconut shells into powder with a mesh size of 80. The test method was carried out by testing the machine using a coconut shell weight of 0.5 kg for a testing time of 3 minutes. From the test results, the machine is capable of producing coconut shell powder weighing 0.056 kg. The research results show that the machine designed and tested has performance in accordance with the stated objectives. This machine is capable of producing coconut powder with a mesh size of 80 in a fairly short time, namely 3 minutes. The efficiency of the coconut shell refining process was proven to increase thanks to machine improvements after analysis of test results. Despite this, some issues were still identified during testing. One of them is the lack of tightness of the hammer mill pair in the cylinder, which causes the grinding process to take longer than expected. Suggestions for future research are to improve the placement of the hammer mill so that it is closer or lower in the cylinder to increase grinding efficiency. Apart from that, there is a leak at the front of the cylinder which requires a patch repair. It is recommended to carry out appropriate repairs to the leak area so as not to disrupt the refining process and prevent material loss. Thus, this coconut shell grinding machine can be used as an effective solution in the process of grinding coconut shell charcoal efficiently and effectively.


Keywords


Grinding machine, Coconut shell waste, Hammer mill, Grinding efficiency.

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References


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DOI: http://dx.doi.org/10.33021/jtmm.v9i1.5188

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