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محمد احمدزاده
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Development and Evaluation of a Citrus Sorting Machine with Rotary Semi-conical Disc

Reza TABATABAEKOLOOR1, Jafar HASHEMI21 Corresponding Author, Mazandaran University, Complex of Agriculture and Natural Resources, Department of Agricultural Machinery, Sari, Iran r_tabatabaee@yahoo.com 2 Mazandaran University, Complex of Agriculture and Natural Resources, Department of Agricultural Machinery, Sari, Iran

Abstract: A citrus sorting apparatus based on principle of centrifugal force of a rotating disc with semi-conical surface was developed. The apparatus consisted of a 700 mm disc, 700×700×900 mm frame, one feeding tray and three receiving tray. Disc rotation at four levels (30, 35, 40, 45 rpm) was controlled by an inverter connected to a 0.5 hp electromotor. An adjustable step-height belt above disc peripheral allowed fruit desired size (59-72, 73-86 and 87-100 mm, mean diameter) to pass into the receiving tray. Experiments were carried out on orange samples (Thompson variety) to determine the optimum values of apparatus disc rpm, capacity, efficiency and mean error ratio. Results showed that at the disc rotary speed of 40 rpm, the optimum values of mean error ratio, efficiency and capacity were 11.1%, 94% and 1012 kg/h, respectively.Key words: Sorting, rotary disc, citrusr, orange.
مطلب قبلی Improvements in Citrus Packing Lines to Reduce the Mechanical Damage to Fruit
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