Eel sorting device and method

Abstract

The invention relates to the technical field of eel processing, and discloses an eel sorting device which comprises a first area and a second area, and the first area is provided with a fish feeding table; a plurality of first storage pools are distributed in the first area, a plurality of second storage pools are distributed in the second area, a transition mechanism is arranged between the first area and the second area, the transition mechanism comprises a concentration pool and a plurality of diversion pipelines, the second storage pools are distributed into a plurality of rows, and one diversion pipeline corresponds to two rows of second storage pools; the flow dividing pipeline comprises a plurality of first through pipes arranged in parallel and a plurality of second through pipes arranged in parallel, the first through pipes are communicated with the second through pipes, an included angle is formed between each first through pipe and the corresponding second through pipe, a communication box is connected between each first through pipe and the corresponding second through pipe, and the first through pipes are communicated with the second through pipes. The communicating boxes are provided with opening and closing doors, and every two adjacent communicating boxes correspond to the second storage pools in different rows. According to the eel sorting device, the eel sorting flexibility and efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of eel processing, and in particular to an eel sorting device and a sorting method. Background Art

[0002] When eels are processed, they need to be slaughtered. Before slaughtering, live eels must be kept empty for at least 24 hours, and the eels must be cleaned before being transported to the next process. When eels are transported to the processing workshop at different times, they must be temporarily stored in different pools, so multiple pools are needed to store eels.

[0003] The structure of the pool is simple, but when a large number of live eels are to be stored in different pools, they need to be transported manually and placed into the pools, and the distribution efficiency is low. Summary of the invention

[0004] In order to enhance the distribution efficiency of eels when they are released, the present application provides an eel sorting device and a sorting method.

[0005] In a first aspect, the present application provides an eel sorting device, which adopts the following technical solution: An eel sorting device comprises a first area and a second area, wherein the bottom surface of the first area is higher than that of the second area, and the first area is provided with a fish lowering platform; A plurality of first storage pools are distributed in the first area, and the first storage pools are equipped with fish outlet doors and fish inlet doors, a fish inlet channel is connected between the fish inlet doors of the plurality of first storage pools, the lower fish platform is connected to the fish inlet channel, the bottom surface of the fish inlet channel is higher than the bottom surface of the first storage pool, a blocking plate is detachably provided between two of the first storage pools, a fish outlet channel is connected between the fish outlet doors of the plurality of first storage pools, the bottom surface of the fish outlet channel is flush with the bottom surface of the first storage pool, the fish inlet channel is connected to the fish outlet channel, and the fish outlet channel includes a first fish outlet and a second fish outlet; A plurality of second storage tanks are distributed in the second area, each of the second storage tanks is provided with a gate, a confluence channel is connected between the plurality of gates, and the confluence channel is provided with an opening; A transition mechanism is provided between the first area and the second area, the transition mechanism includes a central pool and a plurality of diversion pipes, the central pool is connected to the second fish outlet, a first baffle is slidably installed up and down between the central pool and the fish outlet, a plurality of diversion pipes are connected to the central pool, the second storage pools are distributed in a plurality of rows, one diversion pipe corresponds to two rows of the second storage pools, and a second baffle is provided between the central pool and the diversion pipes; The diversion pipeline includes a plurality of first through tubes arranged in parallel with each other and a plurality of second through tubes arranged in parallel with each other, the first through tubes are connected to the second through tubes, an angle is formed between the first through tubes and the second through tubes, a connecting box is connected between the first through tubes and the second through tubes, the connecting box is provided with an opening and closing door, and two adjacent connecting boxes correspond to different rows of the second storage tanks.

[0006] By adopting the above technical solution, the eel sorting device is provided with a first area and a second area, and the bottom surface of the first area is higher than the second area, and the natural flow sorting of eels is realized by utilizing the height difference; The initial storage of eels is achieved through multiple first storage pools, and the orderly flow of eels in the device is achieved through the setting of fish inlet doors and fish outlet doors, and the connection of fish inlet channels and fish outlet channels. The detachable design of the blocking plate makes it possible to adjust the use status of the first storage pools as needed. For example, when one of the first storage pools is idle, the fish inlet door can be opened and the other fish inlet doors can be closed. The fish inlet channel is blocked by the blocking plate, so that the fish inlet channel can only guide eels into the first storage pool with the opened fish inlet door, and other positions of the fish inlet channel are blocked, thereby improving the flexibility and efficiency of eel sorting, ensuring the smooth flow of eels in the sorting process, and reducing congestion and losses; The fish loading platform can always be located in the first area, but the coordinated use of the centralized pool and the diversion pipeline can expand the distribution and storage range of the eels, and when the eel storage area is increased, the location where the eels are poured in can remain unchanged; The mutual connection between the first through-pipe and the second through-pipe, as well as the arrangement of the connecting box and the opening and closing door, make it possible to adjust the flow direction of the eels as needed. The eels can enter two rows of second storage pools at the same time, or only one row of second storage pools, or any one of the two rows of second storage pools; the flexibility and adaptability of the sorting device are further enhanced, and it can be quickly adjusted according to different sorting needs.

[0007] Optionally, the first through pipe is connected to the connecting box through a bellows, and the second through pipe is also connected to the connecting box through a bellows.

[0008] By adopting the above technical solution, the design of the bellows makes the pipeline connection more flexible and can adapt to the connection requirements of different angles and positions.

[0009] Optionally, the opening and closing door slides up and down on the connecting box.

[0010] By adopting the above technical solution, the up and down sliding design of the opening and closing door makes the operation easier and can be quickly opened or closed as needed.

[0011] Optionally, the connecting box is provided with a blocking door which can be slid up and down, and the blocking door corresponds to the bellows one by one.

[0012] By adopting the above technical solution, the setting of the blocking door can further control the flow direction of the eels and ensure that the eels flow along the predetermined path. For example, if there are eels in several second storage pools far away from the central pool, the corresponding blocking doors are closed to shorten the path for the eels to flow, and the eels can only enter the second storage pools near the central pool.

[0013] Optionally, both the first through pipe and the second through pipe are connected with a connecting rod, and a positioning pipe is correspondingly provided for the diversion pipeline, and the connecting rod is connected to the positioning pipe.

[0014] By adopting the above technical solution, the connection between the connecting rod and the positioning tube can ensure the stability and accuracy of the pipeline and avoid deviation or deformation of the pipeline during use.

[0015] Optionally, the positioning tube is connected to the concentrating pool, a third baffle is provided between the concentrating pool and the positioning tube, the connecting rod is a hollow structure with openings at both ends, the connecting rod and the positioning tube are detachably connected, and the positioning tube is located above the first through tube.

[0016] By adopting the above technical solution, the hollow structure of the connecting rod can be easy to clean and maintain, and the detachable connection makes replacement and repair more convenient. In addition, the eel can enter the diversion pipe through the positioning tube, which speeds up the eel's entry into the two rows of second storage tanks. The cooperation of the positioning tube and the sealing plate can also enable the eel to enter only one row of the second storage tank.

[0017] Optionally, the connecting rod is detachably connected to a cleaning tube.

[0018] By adopting the above technical solution, the connection of the cleaning pipe can conveniently clean the inside of the pipeline and avoid blockage and pollution.

[0019] In a second aspect, the present application provides an eel sorting method, which adopts the following technical solution: An eel sorting device, using the above-mentioned eel sorting device for sorting, ensuring that there are no debris and obstacles in the fish inlet channel, the fish outlet channel, the confluence channel and the diversion pipeline; According to the situation of the first storage tank, a baffle is installed to separate a specific fish inlet route, and the eels to be temporarily stored are poured into the fish unloading platform. The eels enter the fish inlet channel along with the water flow, and the eels enter the corresponding first storage tank through the distribution and guidance of the baffle. When the eels are stored in the first storage tank for more than 24 hours, the fish outlet door is opened, and the eels enter the next process through the first fish outlet of the fish outlet channel; When the first storage pools in the first area are filled with eels, the second fish outlet of the fish outlet channel is connected to the central pool, and the eels are guided into different second storage pools through the diversion pipes. The different diversion paths are opened or closed by controlling the opening and closing doors on the connecting box. When the eels are stored in the second storage pool for more than 24 hours, the gates of the second storage pool are opened, and the eels enter the next process through the confluence channel.

[0020] In summary, the present application includes at least one of the following beneficial effects: 1. The eel sorting process is made more efficient by rationally designing various parts of the sorting device, such as the setting of the first area and the second area, the design of the fish inlet and outlet channels, the transition mechanism and the diversion pipeline; 2. Through the design of detachable baffles, opening and closing doors, blocking doors, and the use of flexible connecting parts such as bellows and connecting rods, the sorting device can be quickly adjusted and optimized according to different sorting requirements, enhancing the flexibility and adaptability of the device; 3. The design of connecting rods, positioning tubes, etc. makes the pipeline system more stable and less prone to displacement. At the same time, the design of the cleaning tube also ensures the hygiene and cleanliness inside the pipeline, thereby ensuring the stability and reliability of the sorting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a cross-sectional schematic diagram of an embodiment of the present application; Figure 3 It is a structural schematic diagram of the distribution of the diversion pipelines in the embodiment of the present application; Figure 4 yes Figure 3 A magnified schematic diagram of point A; Figure 5 It is a structural schematic diagram of an embodiment of the present application showing that the positioning tube is located above the diversion pipe.

[0022] Description of reference numerals: 100, first area; 110, first storage tank; 111, fish inlet gate; 112, fish outlet gate; 113, fish inlet channel; 114, baffle plate; 115, fish outlet channel; 116, first fish outlet; 117, second fish outlet; 118, installation door; 200, second area; 210, second storage tank; 211, gate; 212, confluence channel; 300, transition mechanism; 31 0. Concentrating pool; 311. First baffle; 312. Second baffle; 313. Third baffle; 320. Diversion pipe; 321. First through pipe; 322. Second through pipe; 323. Connecting box; 324. Opening and closing door; 325. Blocking door; 330. Bellows; 340. Connecting rod; 341. Limiting ring; 350. Positioning pipe; 360. First connecting pipe; 370. Second connecting pipe; 400. Lower fish platform. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-5 This application is described in further detail.

[0024] The present application embodiment discloses an eel sorting device. Figure 1 An eel sorting device includes a first area 100 and a second area 200, wherein the bottom height of the first area 100 is higher than the bottom height of the second area 200. A plurality of first storage pools 110 are distributed in the first area 100, and the plurality of first storage pools 110 are arranged in an array.

[0025] Reference Figure 1 and Figure 2 The first storage pool 110 is equipped with a fish inlet door 111 and a fish outlet door 112. A fish inlet channel 113 is connected between the fish inlet doors 111 of the multiple first storage pools 110. The bottom surface of the fish inlet channel 113 is higher than the bottom surface of the first storage pool 110. A baffle plate 114 is installed on the inner wall of the fish inlet channel 113 to slide up and down. The fish inlet channel 113 is separated by the baffle plate 114, so that eels can only enter a specific first storage pool 110. Multiple fish outlet doors 112 are connected with a fish outlet channel 115. The bottom surface of the fish outlet channel 115 is flush with the bottom surface of the first storage pool 110. When the fish outlet door 112 is opened, the eels can directly leave the first storage pool 110. The fish inlet channel 113 and the fish outlet channel 115 are connected to each other and can be temporarily blocked by the baffle plate 114, so that the fish outlet channel 115 and the fish inlet channel 113 do not interfere with each other. By opening the baffle plate 114, the first area 100 can be fully cleaned.

[0026] Reference Figure 1, multiple second storage pools 210 are distributed in the second area 200, and the second storage pools 210 are distributed in multiple rows. A transition mechanism 300 is arranged between the first area 100 and the second area 200, and the transition mechanism 300 includes a central pool 310 and multiple diversion pipes 320. The fish outlet channel 115 has a first fish outlet 116 and a second fish outlet 117. The first fish outlet 116 is connected to the next process, and the second fish outlet 117 is connected to the fish inlet of the central pool 310. An installation door 118 is arranged at the first fish outlet 116 of the inner wall of the fish outlet channel 115, and the central pool 310 is provided with a first baffle 311 for intercepting eels from entering the central pool 310, and the first baffle 311 slides up and down at the fish inlet of the central pool 310.

[0027] Reference Figure 3 , one diversion pipe 320 corresponds to two rows of second storage pools 210. The two rows of storage pools in the second area 200 are a group, and there are two groups in this embodiment, so two diversion pipes 320 are provided. Both diversion pipes 320 are connected to the central pool 310, and the central pool 310 is slidably mounted with a second baffle 312. The central pool 310 and the diversion pipe 320 can be connected only after the second baffle 312 is opened.

[0028] When eels need to be temporarily stored, the first area 100 is provided with a total fish unloading platform 400, and the eels can enter any of the first storage pools 110 through the fish entry channel 113 of the first area 100, and can also enter the second area 200 through the first area 100, and then enter one or more of the second storage pools 210 according to the transition mechanism 300.

[0029] The second storage tank 210 is provided with a gate 211, and a confluence channel 212 is connected between the gates 211 of the second storage tanks 210, and the outlet of the confluence channel 212 is connected to the next process. After the eel intestines are cleaned, it can enter the next process through the outlet of the confluence channel 212.

[0030] Reference Figure 4 Specifically, the shunt pipe 320 includes a plurality of first through pipes 321 and second through pipes 322. The first through pipes 321 are arranged in parallel, and the second through pipes 322 are arranged in parallel. The first through pipes 321 and the second through pipes 322 are connected, and an angle is formed between the first through pipes 321 and the second through pipes 322. A connecting box 323 is connected between the first through pipes 321 and the second through pipes 322, and two adjacent connecting boxes 323 correspond to different rows of second storage tanks 210. The connecting box 323 is provided with an opening, and the connecting box 323 is slidably installed with an opening and closing door 324 for opening or closing the opening. When the opening and closing door 324 opens the opening, the eel can enter the second storage tank 210 from the shunt pipe 320. Therefore, by opening the connecting boxes 323 at different positions, the eel can enter different second storage tanks 210.

[0031] The connecting box 323 of this embodiment is located in the second storage pool 210, and the eels can enter the two rows of the second storage pool 210 along the diversion pipe 320. The outer wall of the connecting box 323 is fixedly connected with a support plate, which abuts against the upper edge of the second storage pool 210. When the eels enter the connecting box 323, the position of the connecting box 323 remains stable.

[0032] Reference Figure 3 and Figure 4 Specifically, a first connecting pipe 360 ​​is connected between the first through pipe 321 of the shunt pipe 320 and the concentrating pool 310. One end of the first connecting pipe 360 ​​and the concentrating pool 310 may be fixedly connected by a flange, and the other end of the first connecting pipe 360 ​​and the first through pipe 321 are connected by a pipe joint. The first through pipe 321 is connected to the connecting box 323 through the bellows 330, and the second through pipe 322 is also connected to the connecting box 323 through the bellows 330. The design of the bellows 330 allows the positional relationship between the first through pipe 321 and the second through pipe to be appropriately changed, which can better meet the connection requirements of different angles and positions of the first through pipe 321 or the second through pipe 322.

[0033] Reference Figure 3 and Figure 4 The connecting box 323 slides up and down and is equipped with two blocking doors 325, which correspond to the bellows 330 one by one. When the blocking doors 325 slide downward, the connecting box 323 can be blocked from connecting with the bellows 330. If there are eels in the second storage tank 210 far away from the centralizing tank 310 and the first storage tank 110 near the centralizing tank 310 is idle, the connecting box 323 far away from the centralizing tank 310 can be pulled down to block the door 325, so that the eels can only enter the first storage tank 110 near the centralizing tank 310.

[0034] Reference Figure 4 and Figure 5 Further, after the positions of the first through pipe 321 and the second through pipe 322 are determined according to the position of the second storage tank 210, the first through pipe 321 and the second through pipe 322 are both connected with a connecting rod 340, and a shunt pipe 320 is also correspondingly provided with a positioning pipe 350, the connecting rod 340 and the positioning pipe 350 are plugged in, and the positions of the first through pipe 321 and the second through pipe 322 are determined.

[0035] Reference Figure 4Furthermore, the connecting rod 340 is a hollow structure with two ends opened. One end of the connecting rod 340 is fixedly connected to the first through pipe 321 through a three-way joint, and the other end of the connecting rod 340 is plugged into the positioning tube 350. A limiting ring 341 extends from the outer circumference of the connecting rod 340. The limiting ring 341 abuts against the outer wall of the positioning tube 350, so that the connecting rod 340 and the positioning tube 350 are stably plugged, and the positioning tube 350 is located above the first through pipe 321. The connecting rod 340 of the second through pipe 322 is installed in the same manner as the first through pipe 321.

[0036] Reference Figure 5 Specifically, a second connecting pipe 370 is connected between the positioning pipe 350 and the centralizing pool 310. The second connecting pipe 370 and the centralizing pool 310 can be fixedly connected by a flange, and the second connecting pipe 370 and the positioning pipe 350 are also fixedly connected by a flange. The first connecting pipe 321 and the positioning pipe 350 are both located at a lower height than the centralizing pool 310. The first connecting pipe 360 ​​and the second connecting pipe 370 are connected to the side wall of the centralizing pool 310, and the pipe openings of the first connecting pipe 360 ​​and the second connecting pipe 370 are flush with each other.

[0037] Reference Figure 5 , a third baffle 313 is slid up and down on the side wall of the central pool 310, and the third baffle 313 corresponds to the second connecting pipe 370. When the third baffle 313 is pulled up, the first connecting pipe 360 ​​is connected to the central pool 310, and when the third baffle 313 is pulled up, the second connecting pipe 370 is connected to the central pool 310, and the second baffle 312 or the third baffle 313 can be opened as needed. When the second baffle 312 and the third baffle 313 are opened at the same time, the eels can also enter the diversion pipe 320 through the positioning pipe 350, speeding up the eels to enter the two rows of the second storage pool 210. Under the design of the blocking plate, the eels can also enter only one row of the second storage pool 210.

[0038] Due to the characteristics of eels, there is some mucus on the body of eels, so the first area 100 and the second area 200 need to be cleaned frequently, and the transition mechanism 300 also needs to be cleaned. The design of the diverter pipe 320 can change the angle between the first through pipe 321 and the second through pipe 322. If the connecting rod 340 leaves the positioning pipe 350, a cleaning pipe (not shown in the figure) can be plugged in, and the first through pipe 321 can also be separated from the first connecting pipe 360. When the connecting rod 340 and the cleaning pipe are plugged in, the distance between the two adjacent connecting rods 340 is small, and the angle formed between the first through pipe 321 and the second through pipe 322 is also small. When water enters from one end of the diverter pipe 320, the water flow can appropriately increase the water flow speed on the inner side of the bend when the diverter pipe 320 has a large turning range to increase the cleaning effect. When the water flows into the diverter pipe 320 from the cleaning pipe, the bending path of the water flow entering the diverter pipe 320 is different, which can also play a certain flushing effect.

[0039] The sorting device of the present application is also provided with oxygenation equipment and water adding equipment in the first area 100 and the second area 200, which can supply oxygen and add water to the eels in the first storage tank 110 and the second storage tank 210. The oxygenation equipment and the water adding equipment are not improved in the present application and will not be elaborated.

[0040] In addition, the sorting device of the present application can also be equipped with an automatic control system to achieve real-time monitoring and automatic control of the sorting process through sensors, actuators and other components. For example, the diversion path or the degree of opening of the opening and closing door 324 can be automatically adjusted according to the characteristics of whether the first storage tank 110 and the second storage tank 210 store eels, whether the storage time of eels exceeds 24 hours, etc. Specifically, the embodiment of the present application preferably uses cylinders, hydraulic cylinders, electric telescopic rods and other driving parts to drive the fish inlet door 111, the fish outlet door 112, the installation door 118, the gate 211, the opening and closing door 324, the blocking door 325, the first baffle 311, the second baffle 312, and the third baffle 313 to automatically move up and down, move up to open, and move down to close.

[0041] The implementation principle of an eel sorting device in the embodiment of the present application is as follows: The bottom surface of the first area 100 is higher than that of the second area 200. By utilizing this height difference, the eels can naturally slide from the first area 100 to the second area 200 under the action of gravity. This design reduces energy consumption and improves sorting efficiency; the bottom surface of the fish inlet channel 113 is higher than the bottom surface of the first storage tank 110, so that the eels have a certain initial velocity when sliding into the first storage tank 110, which helps to reduce congestion and accumulation; in the central pool 310, the eels are guided to different second storage tanks 210 through multiple diversion pipes 320; the design of the connecting box 323 enables different diversion pipes 320 to be connected or isolated from each other. By controlling the opening and closing of the opening and closing door 324, the operator can flexibly adjust the diversion path to meet different sorting needs.

[0042] The embodiment of the present application also discloses a method for sorting eels.

[0043] An eel sorting device, using the above-mentioned eel sorting device for sorting, ensuring that there are no debris and obstacles in the fish inlet channel 113, the fish outlet channel 115, the confluence channel 212 and the diversion pipe 320; According to the situation of the first storage tank 110, a baffle plate 114 is installed so that the baffle plate 114 separates a specific fish inlet route, and the eels to be temporarily stored are poured into the fish discharge platform 400. The eels enter the fish inlet channel 113 along with the water flow, and the eels enter the corresponding first storage tank 110 through the distribution and guidance of the baffle plate 114. When the eels are stored in the first storage tank 110 for more than 24 hours, the fish outlet door 112 is opened, and the eels enter the next process through the first fish outlet 116 of the fish outlet channel 115; When the first storage tanks 110 in the first area 100 are filled with eels, the second fish outlet 117 of the fish outlet channel 115 is connected to the central pool 310, so that the eels are guided into different second storage tanks 210 through the diversion pipe 320, and the different diversion paths are opened or closed by controlling the opening and closing door 324 on the connecting box 323. When the eels are stored in the second storage tank 210 for more than 24 hours, the gate 211 of the second storage tank 210 is opened, and the eels enter the next process through the confluence channel 212.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An eel sorting device, characterized in that: It comprises a first area (100) and a second area (200), the bottom surface height of the first area (100) is higher than that of the second area (200), and the first area (100) is provided with a fish lowering platform (400); The first area (100) is provided with a plurality of first storage pools (110), each of the first storage pools (110) being provided with a fish outlet door (112) and a fish inlet door (111), a fish inlet passage (113) being connected between the fish inlet doors (111) of the plurality of first storage pools (110), the lower fish platform (400) being connected to the fish inlet passage (113), the bottom surface of the fish inlet passage (113) being higher than the bottom surface of the first storage pool (110), and the fish inlet passage (113) being connected to the lower fish platform (400). 3) a baffle plate (114) is detachably provided between two of the first storage pools (110); a fish outlet passage (115) is connected between the fish outlet doors (112) of the plurality of first storage pools (110); a bottom surface of the fish outlet passage (115) is flush with a bottom surface of the first storage pool (110); the fish inlet passage (113) is connected to the fish outlet passage (115); and the fish outlet passage (115) comprises a first fish outlet (116) and a second fish outlet (117); A plurality of second storage pools (210) are distributed in the second area (200), each of the second storage pools (210) is provided with a gate (211), a confluence channel (212) is connected between the plurality of gates (211), and the confluence channel (212) is provided with an opening; A transition mechanism (300) is provided between the first area (100) and the second area (200), the transition mechanism (300) comprising a central pool (310) and a plurality of diversion pipes (320), the central pool (310) being in communication with the second fish outlet (117), a first baffle (311) being slidably mounted up and down between the central pool (310) and the fish outlet channel (115), a plurality of diversion pipes (320) being in communication with the central pool (310), the second storage pools (210) being distributed in a plurality of rows, one diversion pipe (320) corresponding to two rows of the second storage pools (210), and a second baffle (312) being provided between the central pool (310) and the diversion pipes (320); The flow distribution pipeline (320) comprises a plurality of first through-tubes (321) arranged in parallel with each other and a plurality of second through-tubes (322) arranged in parallel with each other; the first through-tubes (321) and the second through-tubes (322) are connected; an angle is formed between the first through-tubes (321) and the second through-tubes (322); a connecting box (323) is connected between one of the first through-tubes (321) and one of the second through-tubes (322); the connecting box (323) is provided with an opening and closing door (324); and two adjacent connecting boxes (323) correspond to different rows of the second storage tanks (210).

2. An eel sorting device according to claim 1, characterized in that: The first through pipe (321) is connected to the communication box (323) via a bellows (330), and the second through pipe (322) is also connected to the communication box (323) via a bellows (330).

3. An eel sorting device according to claim 2, characterized in that: The opening and closing door (324) slides up and down on the connecting box (323).

4. The eel sorting device according to claim 3, characterized in that: The connecting box (323) is slidably mounted with a blocking door (325) up and down, and the blocking door (325) corresponds to the bellows (330) in a one-to-one manner.

5. The eel sorting device according to claim 4, characterized in that: The first through pipe (321) and the second through pipe (322) are both connected to a connecting rod (340), and a positioning pipe (350) is correspondingly provided in the flow distribution pipeline (320), and the connecting rod (340) and the positioning pipe (350) are connected.

6. The eel sorting device according to claim 5, characterized in that: The positioning tube (350) is connected to the concentration pool (310); a third baffle (313) is provided between the concentration pool (310) and the positioning tube (350); the connecting rod (340) is a hollow structure with openings at both ends; the connecting rod (340) and the positioning tube (350) are detachably connected; and the positioning tube (350) is located above the first through tube (321).

7. An eel sorting device according to claim 6, characterized in that: The connecting rod (340) is detachably connected to a cleaning tube.

8. A method for sorting eels, characterized in that: The eel sorting device according to claims 1 to 7 is used for sorting, ensuring that there are no debris or obstacles in the fish inlet channel (113), the fish outlet channel (115), the confluence channel (212) and the diversion channel (320); According to the situation of the first storage tank (110), a baffle plate (114) is installed so that the baffle plate (114) separates a specific fish inlet route, and the eels to be temporarily stored are poured into the fish discharge platform (400). The eels follow the water flow into the fish inlet channel (113), and the eels enter the corresponding first storage tank (110) through the distribution and guidance of the baffle plate (114). When the eels are stored in the first storage tank (110) for more than 24 hours, the fish outlet door (112) is opened, and the eels enter the next process through the first fish outlet (116) of the fish outlet channel (115); When the first storage tanks (110) of the first area (100) are filled with eels, the second fish outlet (117) of the fish outlet channel (115) is connected to the central pool (310), and the eels are guided by the diversion pipeline (320) into different second storage tanks (210). The different diversion paths are opened or closed by controlling the opening and closing doors (324) on the connecting box (323). When the eels are stored in the second storage tanks (210) for more than 24 hours, the gates (211) of the second storage tanks (210) are opened, and the eels enter the next process through the confluence channel (212).

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