요철판을 이용한 새우 선별 방법 연구

Abstract

Shrimp sorting from the catch requires a lot of time and efforts. So, this study proposes an automatic shrimp sorting method using a bumpy plate and investigates the performance by the shape and spacing of the bump and the contact angle. 2 species (Palaemon gravieri, Metapenaeopsis dalei) of shrimp and 3 species of fish were used in the experiment. As a result, the average sorting rate by the bump shape was high in the order of cutter blade hook sharp cutter blade, that by the bump spacing decreased as the spacing increased and that by the contact angle decreased as the angle increased. The highest sorting rate was 61.7% in the cutter blade type/5 mm/20°, which was very low. So, the sorting rate for the case where the fish contained only P. gravieri and that only M. dalei were calculated, respectively. As a result, the highest sorting rate of P. gravieri group showed 91.7% in the cutter blade type/5 mm/20°, and that of M. dalei group showed 46.7% in the cutter blade type/3 mm/30°. Therefore, it was determined that the method of sorting shrimp using bumpy plate was effective in sorting P. gravieri, but not in M. dalei.