Study on paddy grain from axial flow rice thresher
1991
Prasarn Kradangnga | Anek Sukcharoen | Niwat Suwatanakul (Kasetsart Univ. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). National Agricultural Machinery Center)
Axial flow rice thresher with drum length of 4 feet was tested to evaluate the performance under different drum speed and feeding rate. The rice variety of Luang Pathan which had 13.6 % grain moisture content, 10.2 % straw moisture content, 60.6 % grain ratio and 71 cm cut crop length was used. Grain output of the thresher was investigated cracked grain and checked the broken grain in milling test grain. Total losses due to broken, unthreshed and blown grain were about 1 % when onload drum speed was nearly 600 rpm. The cracked grain ratio and the broken grain ratio in milled grain were increased with the rising up of the onload drum speed. At the onload drum speed of 600 rpm, the cracked and broken grain ratios were about 3 % and 6 % respectively.
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