Grading device

Abstract

The invention relates to a mussel grading device. The mussel grading device comprises a plurality of grading screen drums which are arranged in parallel at intervals, wherein the grading screen drumsare horizontally arranged and drum walls are close to each other; penetrating strip-shaped openings are formed in the grading screen drums; the length direction of each of the penetrating strip-shapedopenings is parallel to that of each of the grading screen drums; a plurality of penetrating strip-shaped openings are formed in the circumferential directions of the grading screen drums at intervals; the plurality of grading screen drums are driven by a driving unit to be rotated synchronously in the same direction; the width and the length of each of the penetrating strip-shaped openings are gradually increased along the conveying direction of materials; material receiving tracks are arranged in the drum cavities of the plurality of grading screen drums; the track surfaces of the materialreceiving tracks are perpendicular to the material supply directions of the grading screen drums in the horizontal and conveying direction; due to the rotary grading screen drums, mussels climb up along the surfaces of the grading screen drums, so that the mussels with smaller sizes can be fallen on the material receiving tracks from the corresponding penetrating strip-shaped opening formed in thefirst level of grading screen drum, and the mussels with larger sizes climb onto the second level of grading screen drum from the first level of grading screen drum, so that screening of the musselswith larger sizes can be realized, and grading of the mussels is realized.

Description

technical field [0001] The invention relates to the technical field of seafood processing, in particular to a mussel grading device. Background technique [0002] Mussels, also known as mussels, are bivalve molluscs with dark brown shells that live on seashore rocks and are widely distributed along the coasts of the Yellow Sea and Bohai Sea in my country; mussel shells are wedge-shaped, with a tapered front end and a The end is wide and round; mussels generally have a shell length of 6-8 cm, the shell length is less than twice the shell height, the shell is thin, the top of the shell is close to the front end of the shell, the two shells are equal, left and right symmetrical, the shell surface is purple black, with luster, The growth lines are dense and obvious, and grow in a ring form from the top. [0003] Mussels use silk, which contains bio-adhesives, so that they can firmly adhere to rocks or farming ropes on the seashore. After mussels are harvested from the breeding se...

AI Technical Summary

Problems solved by technology

In the prior art, in the actual production of dried mussels, the mussels are usually placed in the frame, then introduced into the domestic steamer for cooking, and then the opened mussels are placed in the drying field to dry, so that the moisture in the mussel meat Evaporation disappears, and the mussel meat is still in the mussel shell. Generally, the mussel shell is broken by using a beating board manually, and then the scattered mussel meat is sorted out from the broken shell by manual means. The method of picking meat is extremely inefficient and requires a lot of manual participation. When it is in the peak harvest season of mussels, the processing efficiency of dried mussels is often low due to the shortage of labor, and the farmers lose a lot; in order to solve the above problems of low efficiency , there is a mechanical screening device in the prior art, the above-mentioned screening device includes a feeding mechanism, the dried mussel shells are introduced into the feeding mechanism, the feeding mechanism is connected with the crushing mechanism, and the mussel shells are crushed by the crushing mechanism. Crushed, the crushed mussel shells are mixed with the mussel meat and then introduced into the separation drum. The separation drum is provided with a gap that facilitates the removal of the shells. During the rotation of the separation drum, the mussel shells are thrown out from the gap. The mussel meat remains in the separation drum, thereby realizing the separation of the mussel meat and mussel shells. Although the processing efficiency of the above-mentioned screening equipment is much higher than that of the manual method, the above-mentioned crushing mechanism can easily remove the dried mussels. The meat is broken, so it is difficult to ensure the integrity of the mussel meat, and the crushing mechanism is also easy to break the dried mussel meat too small, so that it is exported from the gap of the separation drum, so that the amount of mussel meat obtained is relatively There is a lower problem in the manual way, so the mussel processing in the prior art also has the problem of low efficiency and the inability to ensure the integrity of the dried mussel

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