Eel sorting device and method

Abstract

This application relates to the technical field of eel processing and discloses an eel sorting device, including a first area and a second area. The first area is equipped with a fish unloading platform. Multiple first storage pools are distributed in the first area, and multiple second storage pools are distributed in the second area. A transition mechanism is provided between the first and second areas. The transition mechanism includes a central pool and multiple diversion pipes. The second storage pools are arranged in multiple rows, with one diversion pipe corresponding to two rows of second storage pools. The diversion pipes include multiple parallel first through pipes and multiple parallel second through pipes. The first and second through pipes are connected, forming an angle between them. A connecting box connects one first through pipe and one second through pipe, and the connecting box is equipped with an opening and closing door. Adjacent connecting boxes correspond to different rows of second storage pools. This application improves the flexibility and efficiency of eel sorting.

Description

Technical Field

[0001] This application relates to the technical field of eel processing, and in particular to an eel sorting device and sorting method. Background Technology

[0002] During processing, eels need to be slaughtered. Before slaughter, live eels must be kept on an empty stomach for at least 24 hours to clean their intestines before being transported to the next step. When eels arrive at the processing workshop at different times, they need to be temporarily kept in different tanks, so multiple tanks are required for storing eels.

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

[0004] To improve the efficiency of eel distribution during eel release, this application provides an eel sorting device and sorting method.

[0005] In the first aspect, this application provides an eel sorting device, which adopts the following technical solution:

[0006] An eel sorting device includes 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.

[0007] The first area has multiple first storage pools, each equipped with a fish outlet and a fish inlet. Fish inlet channels connect the fish inlet channels of the multiple first storage pools. The fish lowering platform is connected to the fish inlet channels. The bottom surface of the fish inlet channels is higher than the bottom surface of the first storage pools. A baffle plate is detachably installed between two first storage pools in the fish inlet channels. Fish outlet channels connect the fish outlet channels of the multiple first storage pools. The bottom surface of the fish outlet channels is flush with the bottom surface of the first storage pools. The fish inlet channels are connected to the fish outlet channels. The fish outlet channels include a first fish outlet and a second fish outlet.

[0008] The second area has multiple second storage pools, each equipped with a gate, and the multiple gates are connected by a confluence channel with an opening.

[0009] A transition mechanism is provided between the first area and the second area. The transition mechanism includes a central pool and multiple diversion pipes. The central pool is connected to the second fish outlet. A first baffle is slidably installed at the central pool and the fish outlet. The multiple diversion pipes are all connected to the central pool. The second storage pools are distributed in multiple rows. One diversion pipe corresponds to two rows of the second storage pools. A second baffle is provided between the central pool and the diversion pipes.

[0010] The diversion pipe includes multiple first pipes arranged in parallel with each other and multiple second pipes arranged in parallel with each other. The first pipes and the second pipes are connected and form an angle between them. A connecting box is connected between one of the first pipes and one of the second pipes. The connecting box is provided with an opening and closing door. Two adjacent connecting boxes correspond to different rows of the second storage pools.

[0011] By adopting the above technical solution, the eel sorting device sets up a first area and a second area, with the bottom surface of the first area being higher than that of the second area, and utilizes the height difference to achieve natural flow sorting of eels.

[0012] The device achieves initial storage of eels through multiple primary storage pools. By setting up fish inlet and outlet gates and connecting fish inlet and outlet channels, it enables the orderly flow of eels within the device. The detachable design of the baffles allows the usage status of the primary storage pools to be adjusted as needed. For example, when one primary storage pool is idle, the fish inlet gate can be opened and the other fish inlet gates can be closed. The fish inlet channels are blocked by the baffles, ensuring that the fish inlet channels can only guide eels into the primary storage pools with the fish inlet gates open. Other parts of the fish inlet channels are blocked, which improves the flexibility and efficiency of eel sorting, ensures the smooth flow of eels during the sorting process, and reduces congestion and losses.

[0013] The eel distribution platform can always remain in the first area, but the combined use of the central pool and the diversion pipes can increase the distribution and storage range of the eels, and the location where the eels are poured in can remain unchanged when the eel storage area is increased.

[0014] The interconnection between the first and second pipes, along with the connection box and the opening / closing door, allows the flow direction of the eels to be adjusted as needed. The eels can enter both rows of second storage pools simultaneously, enter only one row of second storage pools, or enter either of the two rows of second storage pools. This further enhances the flexibility and adaptability of the sorting device, enabling rapid adjustments based on different sorting requirements.

[0015] Optionally, the first conduit is connected to the connecting box via a corrugated pipe, and the second conduit is also connected to the connecting box via a corrugated pipe.

[0016] By adopting the above technical solutions, the design of the corrugated pipe makes the pipe connection more flexible and can adapt to the connection requirements of different angles and positions.

[0017] Optionally, the opening and closing door slides up and down on the connecting box.

[0018] By adopting the above technical solution, the up-and-down sliding design of the door makes operation simpler and allows it to be opened or closed quickly as needed.

[0019] Optionally, the connecting box is slidably installed with a blocking door, and the blocking door corresponds one-to-one with the corrugated pipe.

[0020] By adopting the above technical solution, the setting of the blocking gate 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 that are far away from the central pool, the corresponding blocking gates will be closed, shortening the path that the eels can flow through, and the eels can only enter the second storage pools near the central pool.

[0021] Optionally, both the first and second through pipes are connected to a connecting rod, and a positioning pipe is correspondingly provided for each of the diversion pipes, with the connecting rod and the positioning pipe connected together.

[0022] 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 prevent the pipeline from shifting or deforming during use.

[0023] Optionally, the positioning tube is connected to the central pool, a third baffle is provided between the central 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 pipe.

[0024] By adopting the above technical solution, the hollow structure of the connecting rod can be easily cleaned and maintained, while the detachable connection makes replacement and repair more convenient. In addition, the eel can also enter the diversion pipe through the positioning tube, which speeds up the eel's entry into the two rows of second storage pools. The cooperation between the positioning tube and the sealing plate also allows the eel to enter only one row of the second storage pools.

[0025] Optionally, the linkage may be detachably connected to a cleaning tube.

[0026] By adopting the above technical solution, the connection of the cleaning pipe can facilitate the cleaning of the inside of the pipe, avoiding blockage and contamination.

[0027] Secondly, this application provides a method for sorting eels, which adopts the following technical solution:

[0028] An eel sorting device is provided, which sorts eels using the above-mentioned eel sorting device to ensure that the fish inlet channel, fish outlet channel, confluence channel and diversion pipe are free of debris and obstructions;

[0029] Based on the conditions of the first storage tank, baffles are installed to separate specific fish entry routes. The eels to be temporarily stored are poured into the lower fish platform. The eels enter the fish entry channel with the water flow. The eels are distributed and guided by the baffles to enter the corresponding first storage tank. After the eels have been stored in the first storage tank for more than 24 hours, the fish exit door is opened, and the eels enter the next process through the first fish exit of the fish exit channel.

[0030] Once the first storage tank in the first area is filled with eels, the second outlet of the fish outlet channel is connected to the central tank. The eels are guided into different second storage tanks through the diversion pipes. Different diversion paths are opened or closed by controlling the opening and closing doors on the connecting box. After the eels have been stored in the second storage tank for more than 24 hours, the gate of the second storage tank is opened, and the eels enter the next process through the confluence channel.

[0031] In summary, this application includes at least one of the following beneficial effects:

[0032] 1. By rationally designing each part of the sorting device, such as the setting of the first and second zones, the design of the fish inlet and outlet channels, the transition mechanism, and the diversion pipes, the eel sorting process becomes more efficient.

[0033] 2. Through the design of detachable baffles, opening and closing doors, sealing doors, and the use of flexible connecting components such as corrugated pipes and connecting rods, the sorting device can be quickly adjusted and optimized according to different sorting needs, enhancing the flexibility and adaptability of the device.

[0034] 3. The design of connecting rods and positioning tubes makes the pipeline system more stable and less prone to displacement. At the same time, the design of the cleaning tube ensures the hygiene and cleanliness of the pipeline interior, thereby guaranteeing the stability and reliability of the sorting process. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0036] Figure 2 This is a cross-sectional schematic diagram of an embodiment of this application;

[0037] Figure 3 This is a schematic diagram illustrating the distribution of diversion pipes in an embodiment of this application;

[0038] Figure 4 yes Figure 3 Enlarged view of point A;

[0039] Figure 5 This is a schematic diagram illustrating the structure of the positioning tube located above the diversion pipe in an embodiment of this application.

[0040] Explanation of reference numerals in the attached drawings: 100, First area; 110, First storage pool; 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 gate; 200, Second area; 210, Second storage pool; 211, Gate; 212, Convergence channel; 300, Transition mechanism; 31 0. Central pool; 311. First baffle; 312. Second baffle; 313. Third baffle; 320. Diversion pipe; 321. First connecting pipe; 322. Second connecting pipe; 323. Connecting box; 324. Opening and closing door; 325. Sealing door; 330. Corrugated pipe; 340. Connecting rod; 341. Limiting ring; 350. Positioning pipe; 360. First connecting pipe; 370. Second connecting pipe; 400. Fish lowering platform. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0042] This application discloses an eel sorting device. (Refer to...) Figure 1 An eel sorting device includes a first region 100 and a second region 200, wherein the bottom surface of the first region 100 is higher than the bottom surface of the second region 200. A plurality of first storage pools 110 are distributed within the first region 100, and the plurality of first storage pools 110 are arranged in a specific order.

[0043] Reference Figure 1 and Figure 2 The first storage pool 110 is equipped with an inlet gate 111 and an outlet gate 112. Multiple inlet gates 111 of the first storage pools 110 are connected by inlet channels 113, the bottom of which is higher than the bottom of the first storage pool 110. A baffle plate 114 is slidably installed on the inner wall of the inlet channel 113, separating the inlet channels and ensuring that eels can only enter specific first storage pools 110. Multiple outlet gates 112 are connected by an outlet channel 115, the bottom of which is flush with the bottom of the first storage pool 110. When the outlet gate 112 is opened, the eels can leave the first storage pool 110 directly. The inlet channels 113 and outlet channels 115 are interconnected but can be temporarily separated by the baffle plate 114, ensuring that the inlet and outlet channels do not interfere with each other. Furthermore, opening the baffle plate 114 allows for complete cleaning of the first area 100%.

[0044] Reference Figure 1The second area 200 contains multiple second storage pools 210, arranged in multiple rows. A transition mechanism 300 is provided between the first area 100 and the second area 200. 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 connects to the next process, and the second fish outlet 117 connects to the fish inlet of the central pool 310. An installation door 118 is provided at the first fish outlet 116 on the inner wall of the fish outlet channel 115. The central pool 310 is provided with a first baffle 311 to intercept eels from entering the central pool 310. The first baffle 311 slides up and down at the fish inlet of the central pool 310.

[0045] 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 form a group. In this embodiment, there are two groups, so two diversion pipes 320 are provided accordingly. Both diversion pipes 320 are connected to the central pool 310. The central pool 310 is slidably installed with a second baffle 312. The central pool 310 and the diversion pipes 320 can only be connected after the second baffle 312 is opened.

[0046] When eels need to be temporarily stored, the first area 100 is equipped with a general fish disembarkation platform 400. Eels can enter any of the first storage pools 110 through the fish entry channel 113 of the first area 100, or 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.

[0047] The second storage pool 210 is equipped with a gate 211, and the gates 211 of the multiple second storage pools 210 are connected by a confluence channel 212. The outlet of the confluence channel 212 is connected to the next process. After the eel has finished its intestinal cleaning, it can enter the next process through the outlet of the confluence channel 212.

[0048] Reference Figure 4 Specifically, the diversion pipe 320 includes multiple first connecting pipes 321 and second connecting pipes 322. The first connecting pipes 321 are arranged in parallel, and the second connecting pipes 322 are also arranged in parallel. The first connecting pipes 321 and second connecting pipes 322 are connected, forming an angle between them. A connecting box 323 connects the first connecting pipes 321 and second connecting pipes 322. Adjacent connecting boxes 323 correspond to different rows of second storage pools 210. The connecting box 323 has an opening, and an opening / closing door 324 is slidably installed on the connecting box 323 to open or close the opening. When the opening / closing door 324 is open, eels can enter the second storage pool 210 from the diversion pipe 320. Therefore, by opening the connecting boxes 323 at different positions, eels can enter different second storage pools 210.

[0049] In this embodiment, the connecting box 323 is located inside the second storage pool 210, and the eel can enter the two rows of the second storage pool 210 along the diversion pipe 320. A support plate is fixedly connected to the outer wall of the connecting box 323, and the support plate abuts against the upper edge of the second storage pool 210. When the eel enters the connecting box 323, the position of the connecting box 323 remains stable.

[0050] Reference Figure 3 and Figure 4 Specifically, a first connecting pipe 360 ​​connects the first through pipe 321 of the diversion pipe 320 and the central pool 310. One end of the first connecting pipe 360 ​​is fixedly connected to the central pool 310 via a flange, and the other end of the first connecting pipe 360 ​​is connected to the first through pipe 321 via a pipe fitting. The first through pipe 321 is connected to the connecting box 323 via a corrugated pipe 330, and the second through pipe 322 is also connected to the connecting box 323 via a corrugated pipe 330. The design of the corrugated pipe 330 allows for appropriate changes in the positional relationship between the first through pipe 321 and the second through pipe, better accommodating the connection requirements of the first through pipe 321 or the second through pipe 322 at different angles and positions.

[0051] Reference Figure 3 and Figure 4 The connecting box 323 is equipped with two blocking doors 325 that slide vertically. Each blocking door 325 corresponds to a corrugated pipe 330. When the blocking door 325 slides downward, it can block the connection between the connecting box 323 and the corrugated pipe 330. If there are eels in the second storage pool 210, which is far from the central pool 310, and the first storage pool 110, which is near the central pool 310, is idle, the blocking door 325 of the connecting box 323, which is far from the central pool 310, can be pulled down to allow the eels to enter only the first storage pool 110, which is near the central pool 310.

[0052] Reference Figure 4 and Figure 5 Furthermore, after the positions of the first pipe 321 and the second pipe 322 are determined according to the position of the second storage pool 210, both the first pipe 321 and the second pipe 322 are connected to a connecting rod 340, and a diversion pipe 320 is also correspondingly provided with a positioning pipe 350. The connecting rod 340 and the positioning pipe 350 are inserted into each other, and the positions of the first pipe 321 and the second pipe 322 are determined.

[0053] Reference Figure 4Furthermore, the connecting rod 340 is a hollow structure with openings at both ends. One end of the connecting rod 340 is fixedly connected to the first through pipe 321 via a tee connector, and the other end of the connecting rod 340 is inserted into the positioning pipe 350. A limiting ring 341 extends from the outer periphery of the connecting rod 340, and the limiting ring 341 abuts against the outer wall of the positioning pipe 350, ensuring a stable connection between the connecting rod 340 and the positioning pipe 350. The positioning pipe 350 is located above the first through pipe 321. The connecting rod 340 of the second through pipe 322 is installed in the same way as the first through pipe 321.

[0054] Reference Figure 5 Specifically, a second connecting pipe 370 connects the positioning pipe 350 and the collection pool 310. The second connecting pipe 370 and the collection 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 positions of the first connecting pipe 321 and the positioning pipe 350 are both lower than the collection pool 310. The first connecting pipe 360 ​​and the second connecting pipe 370 are connected to the side wall of the collection pool 310, and the openings of the first connecting pipe 360 ​​and the second connecting pipe 370 are flush with each other.

[0055] Reference Figure 5 A third baffle 313 slides up and down on the side wall of the central pool 310, corresponding to the second connecting pipe 370. When the third baffle 313 is pulled up, the first connecting pipe 360 ​​and the central pool 310 are connected; when the third baffle 313 is pulled up, the second connecting pipe 370 and the central pool 310 are connected. The second baffle 312 or the third baffle 313 can be opened as needed. When both the second baffle 312 and the third baffle 313 are opened simultaneously, eels can also enter the diversion pipe 320 through the positioning pipe 350, accelerating the entry of eels into the two rows of second storage pools 210. With the sealing plate design, eels can also enter only one row of second storage pools 210.

[0056] Due to the characteristics of eels, their bodies contain some mucus, 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 diversion pipe 320 can change the angle between the first through pipe 321 and the second through pipe 322. After the connecting rod 340 leaves the positioning pipe 350, a cleaning pipe (not shown in the figure) can be inserted. 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 inserted, the distance between two adjacent connecting rods 340 is relatively small, and the angle formed between the first through pipe 321 and the second through pipe 322 is also relatively small. When water enters from one end of the diversion pipe 320, the water flow can be increased appropriately on the inside of the bend, while ensuring a large flow rate and a large bend in the diversion pipe 320, thus increasing the cleaning effect. When the water enters from the cleaning pipe, the different bend paths of the water entering the diversion pipe 320 can also achieve a certain rinsing effect.

[0057] The sorting device of this application is also equipped with oxygenation equipment and water supply equipment in the first area 100 and the second area 200, which can supply oxygen and water to the eels in the first storage tank 110 and the second storage tank 210. The oxygenation equipment and water supply equipment are not improved in this application, so they will not be described in detail.

[0058] Furthermore, the sorting device of this application can also be equipped with an automatic control system, which can realize real-time monitoring and automatic control of the sorting process through sensors, actuators and other components. For example, the diversion path or the opening degree of the opening and closing door 324 can be automatically adjusted according to characteristics such as whether the first storage pool 110 and the second storage pool 210 store eels and whether the eel storage time exceeds 24 hours. Specifically, in the embodiments of this application, cylinders, hydraulic cylinders, electric telescopic rods and other driving components are preferred to drive the fish inlet door 111, fish outlet door 112, installation door 118, gate 211, opening and closing door 324, sealing door 325, first baffle 311, second baffle 312 and third baffle 313 to move up and down automatically, moving up to open and moving down to close.

[0059] The implementation principle of the eel sorting device in this application embodiment is as follows:

[0060] The bottom surface of the first zone 100 is higher than that of the second zone 200. Utilizing this height difference, eels can naturally slide from the first zone 100 to the second zone 200 under the influence of gravity. This design reduces energy consumption while improving sorting efficiency. The bottom surface of the fish inlet channel 113 is higher than that of the first storage pool 110, giving the eels a certain initial velocity when sliding into the first storage pool 110, which helps reduce congestion and accumulation. In the central pool 310, the eels are guided to different second storage pools 210 through multiple diversion pipes 320. The design of the connecting box 323 allows different diversion pipes 320 to be interconnected or isolated. By controlling the opening and closing of the opening and closing door 324, operators can flexibly adjust the diversion path to meet different sorting needs.

[0061] This application also discloses a method for sorting eels.

[0062] An eel sorting device is used to sort eels to ensure that the fish inlet channel 113, fish outlet channel 115, confluence channel 212 and diversion pipe 320 are free of debris and obstructions.

[0063] Based on the situation of the first storage pool 110, a baffle plate 114 is installed to separate specific fish entry routes. The eels to be temporarily stored are poured into the fish lowering platform 400. The eels enter the fish entry channel 113 with the water flow. The eels enter the corresponding first storage pool 110 through the distribution and guidance of the baffle plate 114. When the eels are stored in the first storage pool 110 for more than 24 hours, the fish exit door 112 is opened. The eels enter the next process through the first fish exit 116 of the fish exit channel 115.

[0064] Once the first storage pool 110 of the first area 100 is filled with eels, the second outlet 117 of the fish outlet channel 115 is connected to the central pool 310, allowing the eels to be guided into different second storage pools 210 through the diversion pipe 320. Different diversion paths are opened or closed by controlling the opening and closing door 324 on the connecting box 323. After the eels have been stored in the second storage pool 210 for more than 24 hours, the gate 211 of the second storage pool 210 is opened, and the eels enter the next process through the confluence channel 212.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An eel sorting device, characterized in that: It includes a first area (100) and a second area (200), the bottom surface 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 first storage pool (110) is equipped with a fish outlet (112) and a fish inlet (111). The fish inlet (111) of the plurality of first storage pools (110) are connected by a fish inlet channel (113). The fish lowering platform (400) is connected to the fish inlet channel (113). The bottom surface of the fish inlet channel (113) is higher than the bottom surface of the first storage pool (110). 3) A baffle plate (114) is detachably provided between the two first storage pools (110), and a fish outlet channel (115) is connected between the fish outlet gates (112) of the plurality of first storage pools (110). The bottom surface of the fish outlet channel (115) is flush with the bottom surface of the first storage pool (110). The fish inlet channel (113) and the fish outlet channel (115) are connected. The fish outlet channel (115) includes a first fish outlet (116) and a second fish outlet (117). The second area (200) is provided with a plurality of second storage pools (210), each of which is equipped with a gate (211). A confluence channel (212) is connected between the plurality of gates (211), and the confluence channel (212) has an opening. A transition mechanism (300) is provided between the first region (100) and the second region (200). The transition mechanism (300) includes a central pool (310) and multiple diversion pipes (320). The central pool (310) is connected to the second fish outlet (117). A first baffle (311) is slidably installed at the central pool (310) and the fish outlet channel (115). The multiple diversion pipes (320) are all connected to the central pool (310). The second storage pools (210) are distributed in multiple rows. One diversion pipe (320) corresponds to two rows of the second storage pools (210). A second baffle (312) is provided between the central pool (310) and the diversion pipes (320). The diversion pipe (320) includes a plurality of first pipes (321) arranged in parallel with each other and a plurality of second pipes (322) arranged in parallel with each other. The first pipes (321) and the second pipes (322) are connected and form an angle between them. A connecting box (323) is connected between one of the first pipes (321) and one of the second pipes (322). The connecting box (323) is provided with an opening and closing door (324). Two adjacent connecting boxes (323) correspond to different rows of the second storage pools (210).

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

3. The 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 installed with a blocking door (325), and the blocking door (325) and the corrugated pipe (330) correspond one-to-one.

5. The eel sorting device according to claim 4, characterized in that: Both the first through pipe (321) and the second through pipe (322) are connected to a connecting rod (340), and a positioning pipe (350) is correspondingly provided for each of the diversion pipes (320). 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 central pool (310), and a third baffle (313) is provided between the central pool (310) and the positioning tube (350). The connecting rod (340) is a hollow structure with open ends. The connecting rod (340) and the positioning tube (350) are detachably connected. The positioning tube (350) is located above the first through pipe (321).

7. The 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 any one of claims 1-7 is used to sort the eels, ensuring that the fish inlet channel (113), fish outlet channel (115), confluence channel (212) and diversion pipe (320) are free of debris and obstructions; According to the situation of the first storage pool (110), a baffle plate (114) is installed to separate the specific fish entry route. The eels to be temporarily stored are poured into the fish lowering platform (400). The eels enter the fish entry channel (113) with the water flow. The eels enter the corresponding first storage pool (110) through the distribution and guidance of the baffle plate (114). When the eels are stored in the first storage pool (110) for more than 24 hours, the fish exit door (112) is opened. The eels enter the next process through the first fish exit (116) of the fish exit channel (115). Once the first storage pool (110) of the first area (100) is filled with eels, the second outlet (117) of the fish outlet channel (115) is connected to the central pool (310). The eels are guided into different second storage pools (210) through the diversion pipe (320). Different diversion paths are opened or closed by controlling the opening and closing door (324) on the connecting box (323). After the eels have been stored in the second storage pool (210) for more than 24 hours, the gate (211) of the second storage pool (210) is opened, and the eels enter the next process through the confluence channel (212).

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