Development and evaluation of a machine for peeling and cleaning peanut seeds

Document Type : Original Article

Author

Department of Agricultural Products Process Engineering, Faculty of Agricultural Engineering, Al-Azhar University, Cairo, Egypt.

Abstract

This study aims to develop and evaluate of machine peeling and cleaning peanut seed to be using in small and medium production units. All peeling and cleaning experiments of peanut seed were carried out at average moisture contents of 7.53% (d.b.) for seed. Experiments were conducted at drum speeds of 100, 200, 300 and 400 rpm, number of rows 4, 8 and 12 and air velocity 1, 2, 3 and 4 m/s. Results showed that the highest productivity was 80 kg/h with drum speed from 400 rpm and number of rows 4, while the highest value of peeling efficiency was 99.1 % with drum speed of 400 rpm and 12 row. Results are also showed that the lowest value of broken seeds was 2.55 % at drum speed of 100 rpm and number of rows of 4. Also, at air velocities 1, 2, 3 and 4 m/s; Results showed that the highest values of cleaning efficiency were 96.15, 97.85, 98.15 and 99.15% respectively, were obtained at drum speed of 100 rpm and 12 row. While lowest values of cleaning efficiency were 94.25, 96.55, 96.65 and 97.50% at air velocities 1, 2, 3 and 4 m/s respectively, were obtained at drum speed of 400 rpm and 4 rows.

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