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El-Sheikha, M., Abdalla, H., El-Sayied, G., Al- Rajhi, M. (2010). CLEANING WHEAT GRAIN BY USING RICE POLISHER MACHINE. Journal of Soil Sciences and Agricultural Engineering, 1(6), 569-583. doi: 10.21608/jssae.2010.74874
M. A. El-Sheikha; H. Sh. E. Abdalla; G. H. El-Sayied; M. A. E. Al- Rajhi. "CLEANING WHEAT GRAIN BY USING RICE POLISHER MACHINE". Journal of Soil Sciences and Agricultural Engineering, 1, 6, 2010, 569-583. doi: 10.21608/jssae.2010.74874
El-Sheikha, M., Abdalla, H., El-Sayied, G., Al- Rajhi, M. (2010). 'CLEANING WHEAT GRAIN BY USING RICE POLISHER MACHINE', Journal of Soil Sciences and Agricultural Engineering, 1(6), pp. 569-583. doi: 10.21608/jssae.2010.74874
El-Sheikha, M., Abdalla, H., El-Sayied, G., Al- Rajhi, M. CLEANING WHEAT GRAIN BY USING RICE POLISHER MACHINE. Journal of Soil Sciences and Agricultural Engineering, 2010; 1(6): 569-583. doi: 10.21608/jssae.2010.74874

CLEANING WHEAT GRAIN BY USING RICE POLISHER MACHINE

Article 1, Volume 1, Issue 6, June 2010, Page 569-583  XML PDF (524.98 K)
Document Type: Original Article
DOI: 10.21608/jssae.2010.74874
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Authors
M. A. El-Sheikha1; H. Sh. E. Abdalla1; G. H. El-Sayied2; M. A. E. Al- Rajhi2
1Dept. of Agric. Eng., Faculty of Agric., Mansoura University.
2Agric. Eng. Res. Institute, ARC.
Abstract
A rice polishing machine was developed and tested for cleaning wheat grain. It consists of a feeding unit, cleaning unit, power drive unit and power transmission unit. Four levels ofmoisture content were about [9.9, 12.4, 14.9 and 17.6 % (d.b.)]; three friction surfaces with three static coefficient of friction were [smooth = 0.35, intermediate between smooth and rough = 0.43, and rough surface= 0.51]; four levels of pressure on cleaning chamber were [1.25, 3.75, 6.25 and 8.75 kN/m2] and three speeds of air suction flow speeds of [1.3, 2.8, and 3.4m/s.], were used. The maximum value of cleaning efficiency was 99.93% achieved at, moisture content (M1= 9. 9 %), pressure (P4 =8.75 kN/m2), rough friction surface (F3=0.51), and suction air speed (S3 =3.4 m/s). The minimum value of grain damage was 3.5 % achieved at, moisture content (M4= 17.6 %), smooth friction surface (F1=0.35), pressure (P1=1.25 kN/m2) and suction air speed (S3=3.4 m/s). The minimum value of losses due to polishing was 0.41 % achieved at, moisture content (M4=17.6 %), pressure (P1=1.25 kN/m2), smooth friction surface (F1=0.35) and suction air speed (S1=1.3m/s).
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