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Rofarsyam Rofarsyam
Politeknik Negeri Semarang
Engineering

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Mesin Pemisah Dan Pembersih Biji-Bijian / Butiran Sebagai Bahan Baku Pakan Burung Olahan Rofarsyam Rofarsyam
Semesta Teknika Vol 11, No 1 (2008): MEI 2008
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v11i1.775

Abstract

Bird feed  ingredient process has been done traditionally which uses winnow that moved up and down by hands, just reach 6 kg/hour by a worker, that containt of 5.75 kg of solid grains, 0.25 kg empety grains and dust. For rising work efficiency needs separating process and cleaning process bird feed ingredient between solid grains and empety grains and dust by mechanical. Those are by build bird feed ingredient separating and cleaning machine. Construction and working principle designed, according to theory of subtance free fall, which forced by horizontal windy force by blower and motored by electrical motor  ½ Hp 1450 rpm completed by belt and pulley transmition. Capacity of bird feed ingredient separating and cleaning machine can reach 90 kg/hour consist 86.25 kg solid grains and 3.75 kg empety grains and dust. 
Analisis Kapasitas dan Efisiensi Pembersihan Mesin Pembersih Biji-Bijian Sistem Blower untuk Produksi Pakan Burung Olahan Rofarsyam Rofarsyam
Semesta Teknika Vol 13, No 1 (2010): MEI 2010
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v13i1.725

Abstract

The optimum cleaning capacity and efficiency of sheed processing in bird food production have been investigated by employing dimensional analysis. The types of grains, grain weight, blowing speed, hight and width of grain-fall were varied in order to obtaine the capacity, processing time and the cleaning degree data of the machine under investigation. The data were then analyzed to determine the product capacity-processing parameter, and efficiency-processing parameter relationships. It was con cluded that two mathematical model of product capacity-processing parameter relationship and efficiency-processing parameter relationship were governed from this study. These mathemetical models can be further used as a reference for determining the dimensions in manufacturing and operation blower system cleaning machine, in order to achieve its maximum cleaning capacity and efficiency.
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