Wind tunnel sorting device and method for living bait snails and residual bait snails in whitmania pigra breeding

Abstract

The invention discloses a wind tunnel sorting device and method for living bait snails and residual bait snails in whitmania pigra breeding. The wind tunnel sorting device comprises a pump suction conduction structure, the self-falling conduction structure is communicated with the pumping conduction structure, and the self-falling conduction structure is used for receiving live snail bodies and residual snail bodies, automatically conveying the live snail bodies and the residual snail bodies and self-adaptively draining water; the wind tunnel sorting structure comprises a frequency conversion fan assembly and a guide inclined cavity pipe; the guide inclined cavity pipe extends in the inclined direction, the top side position of the guide inclined cavity pipe communicates with the self-falling conduction structure, and the output end of the frequency conversion fan assembly communicates with the guide inclined cavity pipe; the snail body collecting and storing structure is provided with a residual snail collecting and discharging hopper and a movable snail collecting and discharging hopper; the residual snail collecting and discharging hopper and the movable snail collecting and discharging hopper are arranged corresponding to the snail throwing route of the guide inclined cavity pipe, and the residual snail collecting and discharging hopper is located on the rear side portion of the movable snail collecting and discharging hopper. In the breeding process of the whitmania pigra, timely and efficient separation of the live snails and the residual snails for bait is achieved, the residual snails are prevented from being accumulated for a long time and going bad, and the problem that in the prior art, the breeding environment is polluted is solved.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, and more specifically, to a wind tunnel separation device and method for separating live and dead bait snails in the culture of broad-bodied golden thread leeches. Background Technology

[0002] The broad-bodied golden thread leech is a traditional Chinese medicine specified in the Chinese Pharmacopoeia. It has extremely high medicinal value. After processing, its dried form can effectively treat diseases such as hypertension, hyperlipidemia, stroke, and cerebral infarction, and has become one of the most sought-after Chinese medicinal materials. Currently, due to the high medicinal value and large market demand for the broad-bodied golden thread leech, relying solely on catching wild individuals can no longer meet the growing demand. There is an urgent need to carry out research on artificial breeding technology. Therefore, the broad-bodied golden thread leech has become an important new species in aquaculture. This type of leech does not suck the blood of vertebrates, but mainly feeds on the body fluids of mollusks such as snails, clams, and mussels, and is figuratively called "golden leech in water".

[0003] In existing technologies, the broad-bodied golden-line leech only consumes the soft parts of bait snails, omitting the foot near the operculum. This makes it difficult to separate the ingested snail remains from the live snails in a timely and efficient manner, leading to prolonged accumulation and decay, causing water pollution. Furthermore, it disperses tiny particles of low-grade fatty amines as aerosols in the farming area, producing an unpleasant odor. These low-grade fatty amines are harmful to broad-bodied golden-line leech farming. Due to the broad-bodied golden-line leech's feeding habits and unique feeding method, it further complicates drug administration during disease prevention and control; once infected, the snails ultimately die, and they also become active sources of infection. Therefore, based on the strategy of shifting the disease control focus forward, timely and efficient separation of snail remains from live snails, water purification, and enhancement of the leeches' own disease resistance become effective ways to control diseases.

[0004] Currently, the grassroots aquaculture industry, a traditional labor-intensive industry, is gradually transforming into a technology-intensive one. Developing a wind tunnel sorting device for live bait snails and carcasses can reduce the incidence of broad-bodied golden leeches, increase aquaculture efficiency, reduce the burden on workers, and improve productivity. Summary of the Invention

[0005] To address this issue, the present invention provides a wind tunnel separation device and method for live and dead bait snails in the cultivation of broad-bodied golden thread leeches, in order to solve the technical problem in the prior art that it is difficult to separate live and dead bait snails in a timely and efficient manner, which leads to the accumulation and deterioration of dead snails over a long period of time, thus polluting the cultivation environment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A wind tunnel separation device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches includes: The pump suction conduction structure centrally acquires the snails to be sorted; The vibrating sieve assembly separates the snails to be sorted into different specifications according to the size of the aperture of the vibrating sieve disc; The self-falling conduction structure is connected and assembled with the pump suction conduction structure at its input end, and the self-falling conduction structure receives the live snails and their residues to be sorted and automatically transports and adaptively drains them. The wind tunnel sorting structure includes a variable frequency fan assembly and a guide inclined cavity tube positioned in a specific location. The guide inclined cavity tube extends obliquely, and the top middle position of the obliquely extended guide inclined cavity tube is connected to the output end of the self-falling conduction structure. The wind power output end of the variable frequency fan assembly is connected to the lower end of the guide inclined cavity tube. The upper end of the guide inclined cavity tube forms a direct blowing sorting port and different throwing routes corresponding to live and dead snails. The snail body collection and storage structure is equipped with a residual snail collection and discharge hopper and a live snail collection and discharge hopper; the live snail collection and discharge hopper and the residual snail collection and discharge hopper are respectively located at different snail throwing routes for live snail bodies and residual snail bodies.

[0007] Based on the above technical solution, the present invention is further described as follows: As a further aspect of the present invention, The pump suction conduction structure includes a flexible delivery conduit and a drive pump suction head; The self-falling conduction structure includes a spiral self-falling inclined tube; The spiral body is inclined and extends obliquely as a whole, and the starting end of the spiral body is connected to the suction head of the drive pump via a flexible conveying pipe. A water filter screen is provided at the bottom of the lower end of the spiral body self-falling inclined tube, and the lower end of the spiral body self-falling inclined tube is connected to the middle of the top side of the guide inclined cavity tube.

[0008] As a further aspect of the present invention, The spiral body has several sets of adaptive balls and / or several sets of elastic protrusions with predetermined elasticity embedded in its bottom inner wall, and the adaptive balls and / or the elastic protrusions are all located on the upper side of the water filter screen.

[0009] As a further aspect of the present invention, The guide inclined cavity tube extends obliquely at a 45° angle, and the top middle position of the obliquely extended guide inclined cavity tube is connected to the lower end of the screw body self-falling inclined tube. The guide inclined cavity tube is provided with a direct blowing sorting port at its upper end corresponding to its extension direction. The wind output end of the variable frequency fan assembly is connected to the lower inlet end of the guide inclined cavity tube. The live and residual snails falling into the guide inclined cavity tube through the screw body are simultaneously subjected to the wind force output by the variable frequency fan assembly and their own gravity. Due to the mass difference between the live and residual snails, the wind force output by the variable frequency fan assembly can effectively separate and blow out the live and residual snails in an upward oblique direction, so that the live and residual snails complete a parabolic fall at different distances.

[0010] As a further aspect of the present invention, The snail body storage structure also includes a residual snail storage cavity and a live snail storage cavity; Both the residual snail collection hopper and the live snail collection hopper are inclined and extended, and the lower end of the residual snail collection hopper is connected to the residual snail collection and storage cavity, and the lower end of the live snail collection hopper is connected to the live snail collection and storage cavity. The upper end of the residual snail collection hopper is located on the side further away from the direct-blowing sorting port than the live snail collection hopper, while the upper end of the live snail collection hopper is located on the side closer to the direct-blowing sorting port than the residual snail collection hopper.

[0011] As a further aspect of the present invention, The vibrating screen assembly includes a grading vibrating screen plate, a collection hopper, and channel valves; The grading vibrating screen includes several sets of vibrating screens, which are arranged obliquely from top to bottom and are located between the drive pump head of the pump suction conduction structure and the inlet end of the self-falling conduction structure. Each set of vibrating screens is driven and equipped with a variable frequency vibrating screen drive structure. The collecting hopper and the channel valve are provided in several groups. The inlet ends of the several groups of collecting hoppers are respectively connected to the downward-sloping ends of the several groups of vibrating screens. The outlet ends of the several groups of collecting hoppers are respectively connected to the flexible conveying pipe. The several groups of channel valves are respectively installed at the outlet ends of the several groups of collecting hoppers. The variable frequency fan assembly is connected to the control output terminal of the electronic control module via a circuit, and the control input terminal of the electronic control module is connected to several sets of channel valves via a circuit.

[0012] As a further aspect of the present invention, it also includes: The pre-removal component specifically includes a microporous jet structure, an electro-filter grid structure, and a biomimetic removal structure; The micro-orifice jet structure includes several controllable water pressure array pipes, and the ends of the array pipes are respectively equipped with micro-orifice nozzles facing the outer side of the electrical filter grid structure. The electrical filter grid structure includes a forward filter grid assembly and two sets of lateral filter grid assemblies that are respectively and sequentially arranged on both sides of the forward filter grid assembly, and the enclosure area formed by the electrical filter grid structure is correspondingly arranged with the driving pump suction head of the pump suction conduction structure. The forward filter assembly and the lateral filter assembly have the same structure, both including a live screw blocking part, an electric field filter part and a top shielding part that are fixedly connected from bottom to top. The live snail blocking part is configured as a cylindrical structure located at the bottom. When the micro-orifice jet structure releases a specific pressure water flow, the live snail blocking part plays a role in displacing and blocking the self-displaced live snails and smaller live snails that are blown up. The electric field filter grid part is configured as a vertical channel filter grid structure located in the middle, so that the blown-up residual snails can pass through the channel of the electric field filter grid part and reach the enclosure area of ​​the electric filter grid structure. The electric field filter grid part is connected to a deflecting electric field through a circuit. The top shield is arranged laterally above the electric field filter to block excessively blown-up residual screws; The biomimetic expulsion structure is provided in several groups, and the several groups of biomimetic expulsion structures are distributed and fixed to the electrical filter grid structure, and the biomimetic expulsion structure outputs the snail's natural enemy biomimetic vibration wave.

[0013] A method for separating live and residual bait snails in wind tunnel sorting using the aforementioned wind tunnel sorting device for broad-bodied golden thread leeches includes the following steps: S1: Obtain the snails to be sorted, and perform size sorting, automatic conveying, and adaptive drainage processes on the obtained snails. Specifically, this includes: The pump head in the pump-suction transmission structure concentrates the snails to be sorted in the breeding area. The snails, both live and dead, are then effectively sorted into different sizes by a variable frequency vibrating screen component at different specific vibration frequencies. The snails of different sizes are then further divided into different collection troughs and transported to a flexible conveying pipe through a channel valve. From there, they are transported to the snail self-falling inclined pipe in the self-falling transmission structure. As the live and dead snails fall automatically in the self-falling inclined pipe, several sets of adaptive ball bearings and / or several sets of spring-loaded convex ridges assist the falling live and dead snails to enhance the self-turning effect, thereby accelerating the discharge of water from the snail shells and increasing the quality difference between the live and dead snails and improving the sorting efficiency of the subsequent wind tunnel sorting process. At the same time, the water is automatically drained to the water collection and circulation structure through a filter screen to complete the automatic drainage return circulation. S2: The wind tunnel sorting process is completed based on the mass difference between live and dead snails, specifically including: The variable frequency fan assembly of the wind tunnel sorting structure outputs wind force based on the specific specifications of the live and residual snails. At this time, the live and residual snails falling from the inclined tube into the guide inclined cavity are simultaneously subjected to the wind force output by the variable frequency fan assembly and their own gravity. Due to the mass difference between the live and residual snails, the wind force output by the variable frequency fan assembly separates and blows the live and residual snails out along the upward straight blowing sorting port, so that the live and residual snails fall parabolically at different distances, thus completing the wind tunnel sorting process. S3: Further automatic classification and storage of live and damaged snails after the wind tunnel sorting process, specifically including: The snail remains that have completed the wind tunnel sorting process automatically fall into the snail remains collection hopper under gravity, while the live snails that have completed the wind tunnel sorting process automatically fall into the live snail collection hopper under gravity, and then further fall into the snail remains collection chamber and the live snail collection chamber respectively.

[0014] The present invention has the following beneficial effects: This device and method effectively extract snails of specific sizes using a pump-suction conduction structure. Simultaneously, a self-falling conduction structure enables automatic snail descent and adaptive drainage, thus ensuring efficient subsequent wind tunnel sorting. Furthermore, a water collection and circulation structure can be used to automatically circulate drainage back to the self-falling conduction structure. Additionally, the wind tunnel sorting structure effectively utilizes the mass difference between live and dead snails to complete the wind tunnel sorting process. A snail collection and storage structure automatically classifies and receives live and dead snails from the wind tunnel sorting structure, significantly enhancing the efficiency of live and dead snail sorting. Attached Figure Description

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The structures, proportions, sizes, etc., drawn in this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0016] Figure 1 This is a schematic diagram of the overall structure of the wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches provided in Embodiment 1 of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches provided in Embodiment 1 of the present invention, corresponding to the self-falling conduction structure.

[0018] Figure 3 This is a schematic diagram of the vibrating sieve assembly in the wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches, as provided in Embodiment 1 of the present invention.

[0019] Figure 4 This is a schematic diagram of the overall isometric structure of the pre-dispersal component in the wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches provided in Embodiment 2 of the present invention.

[0020] Figure 5 This is a schematic diagram of the electrical filter grid structure of the pre-dispersion component in the wind tunnel separation device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches provided in Embodiment 2 of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: Pump suction conduction structure 1: flexible delivery pipe 11, drive pump suction head 12; Self-falling conduction structure 2: self-falling inclined tube 21, self-adaptive ball bearing 22, water filter screen 23, spring-loaded convex ridge 24; Water collection and circulation structure 3: water collection tank 31, water guide inclined pipe 32, pump return pipe 33; Wind tunnel sorting structure 4: Variable frequency fan assembly 41, guide inclined cavity tube 42, direct blowing sorting port 43; Snail body storage structure 5: residual snail collection and discharge hopper 51, residual snail collection and storage cavity 52, live snail collection and discharge hopper 53, live snail collection and storage cavity 54; Micro-orifice jet structure 6: pressurization main pipe 61, array branch pipe 62, micro-orifice nozzle 63, pressure control valve 64, positioning bend 65; Electrical filter structure 7: forward filter assembly 71, lateral filter assembly 72, live screw blocking part 73, electric field filter part 74, top shielding part 75, top mounting plate 76; Bionic expulsion structure 8; Vibrating screen assembly 9: grading vibrating screen disc 91, variable frequency vibrating screen drive structure 92, collection hopper 93, channel valve 94. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0024] Example 1 like Figures 1 to 3 As shown in the figure, this invention provides a wind tunnel sorting device for live and dead snails in the cultivation of broad-bodied golden leeches. The device includes a pump-suction transmission structure 1, a free-fall transmission structure 2, a water collection and circulation structure 3, a wind tunnel sorting structure 4, and a snail collection and storage structure 5. The pump-suction transmission structure 1 effectively extracts snails of specific sizes, while the free-fall transmission structure 2 enables automatic snail descent and adaptive drainage, thus ensuring efficient wind tunnel sorting. The water collection and circulation structure 3 further facilitates automatic drainage recirculation corresponding to the free-fall transmission structure 2. Additionally, the wind tunnel sorting structure 4 effectively utilizes the quality difference between live and dead snails to complete the wind tunnel sorting process. The snail collection and storage structure 5 automatically receives live and dead snails from the wind tunnel sorting structure 4, significantly enhancing the efficiency of live and dead snail sorting and improving its functionality. The specific settings are as follows: Please refer to Figure 1 The pump suction conduction structure 1 includes a flexible conveying conduit 11 and a drive pump suction head 12, and the self-falling conduction structure 2 includes a spiral self-falling inclined tube 21; wherein, the spiral self-falling inclined tube 21 extends obliquely as a whole, and the starting end of the spiral self-falling inclined tube 21 on the upper side is connected and assembled between the flexible conveying conduit 11 and the drive pump suction head 12, so as to concentrate the suction of snails of a specific size and their residues through the drive pump suction head 12 and transport them to the spiral self-falling inclined tube 21 through the flexible conveying conduit 11.

[0025] Please refer to Figure 1 and Figure 2The spiral self-falling inclined tube 21 has a water-filtering screen 23 on its side near the bottom end. The spiral self-falling inclined tube 21 has several sets of adaptive ball bearings 22 and / or several sets of elastic protrusions 24 fixedly attached to its bottom inner wall. These adaptive ball bearings 22 and / or elastic protrusions 24 are located on the upper side of the water-filtering screen 23. During the automatic falling and conveying of live and dead snails via the spiral self-falling inclined tube 21, the adaptive ball bearings 22 and / or elastic protrusions 24 effectively assist the falling snails in enhancing their self-turning effect, making it easier to drain water from the shell of the dead snail. This enhances the quality difference between live and dead snails, effectively ensuring the sorting efficiency of the subsequent wind tunnel sorting process. Furthermore, the water-filtering screen 23 automatically drains water, improving the overall functional continuity and practicality.

[0026] Please continue to refer to this. Figure 1 The water collection and circulation structure 3 includes a water collection tank 31, a water guide inclined pipe 32, and a pump return pipe 33. The inlet end of the water collection tank 31 is connected to the outlet end of the filter screen 23 via the water guide inclined pipe 32, so that the water automatically discharged by the filter screen 23 can be further guided to the water collection tank 31. The water collection tank 31 is connected to the external aquaculture area via the pump return pipe 33, so as to cooperate with the pump suction conduction structure 1 and the self-falling conduction structure 2 to effectively complete the automatic drainage return circulation, further improving the functionality and practicality.

[0027] The wind tunnel sorting structure 4 includes a variable frequency fan assembly 41, a guide inclined cavity tube 42, and a direct-blowing sorting port 43. The variable frequency fan assembly 41 and the guide inclined cavity tube 42 are respectively positioned and connected, with the wind output end of the variable frequency fan assembly 41 connected to the guide inclined cavity tube 42. Specifically, the guide inclined cavity tube 42 extends obliquely at a 45° angle, and the top middle position of the obliquely extending guide inclined cavity tube 42 is connected to the lower end of the screw-body self-falling inclined tube 21. The upper end of the guide inclined cavity tube 42 corresponding to its extension direction is provided with... The direct-blowing sorting port 43; the wind output end of the variable frequency fan assembly 41 is connected to the lower inlet end of the guide inclined cavity tube 42, so that the live and dead snails falling from the inclined tube 21 into the guide inclined cavity tube 42 can be simultaneously subjected to the wind force output from the variable frequency fan assembly 41 and their own gravity. In this way, under the mass difference characteristics of the live and dead snails, the wind force output by the variable frequency fan assembly 41 can effectively separate and blow out the live snails and dead snails in the upward direction. Then, due to the different gravity of the live snails and dead snails, they complete a parabolic fall at different distances.

[0028] The snail body storage structure 5 includes a residual snail collection hopper 51, a residual snail storage cavity 52, a live snail collection hopper 53, and a live snail storage cavity 54. The residual snail collection hopper 51 and the live snail collection hopper 53 are both inclined and extended. The lower end of the residual snail collection hopper 51 is connected to the residual snail storage cavity 52, and the lower end of the live snail collection hopper 53 is connected to the live snail storage cavity 54. The upper end of the residual snail collection hopper 51 is located further away from the direct-blowing sorting port 43 than the live snail collection hopper 53, and the upper end of the live snail collection hopper 53 is located closer to the direct-blowing sorting port 43 than the residual snail collection hopper 51. This structure serves as the basis for the parabolic wind tunnel sorting of live and residual snails using the snail body storage structure 5.

[0029] As a preferred embodiment, please refer to Figure 3 The aforementioned wind tunnel separation device for live and dead bait snails also includes a vibrating screen assembly 9. Specifically, the vibrating screen assembly 9 includes a grading vibrating screen disc 91, a variable frequency vibrating screen drive structure 92, a collection hopper 93, and a channel valve 94. The grading vibrating screen disc 91 comprises several sets of vibrating screen discs, which are arranged obliquely from top to bottom between the drive pump head 12 of the pump suction transmission structure 1 and the inlet end of the self-falling transmission structure 2. Each set of vibrating screen discs is equipped with a variable frequency vibrating screen drive structure 92, enabling the several sets of vibrating screen discs to effectively separate snails of different specifications at different specific vibration frequencies. The collection hopper 93... Both 93 and the channel valve 94 are provided with several sets. The inlet ends of the several sets of collecting troughs 93 are respectively connected to the downward-sloping ends of the several sets of vibrating screens. The outlet ends of the several sets of collecting troughs 93 are respectively connected to the flexible conveying pipe 11. The several sets of channel valves 94 are respectively installed at the outlet ends of the several sets of collecting troughs 93. First, the different specifications of screws after grouping can fall into different collecting troughs 93 respectively. Then, the screws of different specifications are respectively transported to the flexible conveying pipe 11 by the channel valves 94. This makes it easier for screws of specific specifications to be concentrated to complete the subsequent sorting process.

[0030] More preferably, the variable frequency fan assembly 41 is designed as an electronically controlled variable frequency mechanism, and the variable frequency fan assembly 41 is connected to the control output end of the electronic control module via a circuit. The control input end of the electronic control module is connected to several sets of channel valves 94 via a circuit to realize the automatic control of the opening and closing state of the channel valves 94, and automatically adjust the kinetic energy output frequency of the variable frequency fan assembly 41 according to the specific specifications of the screws output by the channel valves 94, thereby improving the adaptability to different specifications of screws and significantly improving the overall sorting effect.

[0031] This invention also provides a method for separating live and residual snails in wind tunnel sorting using the aforementioned wind tunnel sorting device for raising broad-bodied golden thread leeches, specifically including the following steps: S1: Obtain live and dead snails, and sort the obtained live and dead snails by size according to specifications, and carry out automatic conveying and adaptive drainage processes; The specific process is as follows: the drive pump head 12 in the pump suction transmission structure 1 concentrates the snails to be sorted in the breeding area, and the snails are effectively sorted into different sizes of snails by the variable frequency vibration screening component 9 at different specific vibration frequencies. The snails of different sizes after being grouped are further dropped into different collection troughs 93, and transported to the flexible conveying pipe 11 by the channel valve 94. Then, they are transported to the snail self-falling inclined pipe 21 in the self-falling transmission structure 2. When the live snails and snail residues fall automatically based on the snail self-falling inclined pipe 21, the live snails and snail residues are assisted by several sets of adaptive ball bearings 22 and / or several sets of elastic contact ridges 24 to enhance the self-turning effect of the falling live snails and snail residues, so as to accelerate the discharge of water inside the snail shells, enhance the quality difference between live snails and snail residues and the sorting efficiency of the subsequent wind tunnel sorting process. At the same time, the water is automatically drained to the water collection and circulation structure 3 with the help of the water filter screen 23 to complete the automatic drainage return circulation. S2: The wind tunnel sorting process is completed based on the quality difference between live and dead snails; The specific process is as follows: The variable frequency fan assembly 41 of the wind tunnel sorting structure 4 outputs wind force according to the specific specifications of the live and residual snails. At this time, the live and residual snails falling from the inclined pipe 21 into the guide inclined cavity pipe 42 can be simultaneously subjected to the wind force output by the variable frequency fan assembly 41 and their own gravity. Due to the mass difference between the live and residual snails, the wind force output by the variable frequency fan assembly 41 effectively separates and blows out the live snails and residual snails along the upward direction of the direct blowing sorting port 43. As a result, the live and residual snails fall parabolically at different distances due to their different gravity, thus completing the wind tunnel sorting process. S3: Automatically classify and store live and dead snails that have completed the wind tunnel sorting process; The specific process is as follows: the residual snails that have completed the wind tunnel sorting process are automatically thrown into the residual snail collection hopper 51 based on the difference between synchronous wind force and gravity. At the same time, the live snails that have completed the wind tunnel sorting process are automatically thrown into the live snail collection hopper 53 based on the difference between synchronous wind force and gravity, and then further fall into the residual snail collection and storage chamber 52 and the live snail collection and storage chamber 54 respectively.

[0032] Example 2 In Example 2, the same symbols are used for the same structures as in Example 1, and the same descriptions are omitted. Example 2 is an improvement on Example 1. Please refer to [link / reference needed]. Figure 4 and Figure 5 The wind tunnel separation device for live and dead bait snails in the above-mentioned wide-bodied golden leech farming also includes a pre-dispersal component.

[0033] Specifically, please refer to Figure 4 The micro-orifice jet structure 6 includes a pressurization main pipe 61, array branch pipes 62, micro-orifice nozzles 63, pressure control valves 64, and positioning bends 65. The pressurization main pipe 61 serves as the main water supply pipe, responsible for delivering high-pressure water. A pressure control valve 64 is installed on it to regulate the water pressure and flow rate, ensuring the water flow can flexibly meet the separation requirements of screws of different specifications. Several array branch pipes 62 are provided, and these branch pipes are connected to the end of the pressurization main pipe 61 via the positioning bends 65. The positioning bend 65 serves to guide and stabilize the array branch pipes 62, while the array branch pipes 62 effectively ensure uniform water flow distribution to fully cover the target area. Micro-orifice nozzles 63 are installed at the ends of several array branch pipes 62, respectively, to spray water at specific pressures to initially separate the pumped snails. This achieves the goal of blowing up lighter snail debris while preventing heavier live snails from being blown away, keeping the live snails at the bottom, thus completing the initial separation of live and debris snails.

[0034] More specifically, the orifice diameter of the micro-orifice nozzle 63 is set to a range of 0.5 mm to 1.5 mm, and the spray angle of the micro-orifice nozzle 63 is set to a range of 30° to 60°. This allows for flexible adjustment of the specific spray position towards the outer side of the electrical filter structure as needed, thereby better adapting to snails at different growth stages.

[0035] Please continue to refer to this. Figure 4 and Figure 5 The electrical filter structure 7 is configured as a C-shaped structure. The C-shaped electrical filter structure 7 includes a forward filter assembly 71 and two sets of lateral filter assemblies 72 respectively connected to each other on both sides of the forward filter assembly 71. The enclosure area formed by the C-shaped electrical filter structure 7 is correspondingly arranged between the pump suction head 12 of the pump suction conduction structure 1 and the forward filter assembly 71 is located in the pump suction direction directly opposite to the pump suction head 12.

[0036] Specifically, the forward filter assembly 71 and the lateral filter assembly 72 have the same structure, both including a live screw blocking part 73, an electric field filter part 74, and a top shielding part 75 that are fixedly connected from bottom to top. The live screw blocking part 73 is configured as a cylindrical structure at the bottom. When the micro-orifice jet structure 6 releases water at a specific pressure, the live screw blocking part 73 can effectively block the displacement of live screws and smaller live screws that are blown up. The electric field filter part 74 is configured as a vertical channel filter structure in the middle. The electric field filter part 74 is connected to a driving electric field through an electrical circuit. The driving electric field strength is 5~10V / cm, which is used to further drive away leeches and live screws through the electric field. At the same time, it allows the blown-up residual screws to pass through the channel of the electric field filter part 74 and reach the enclosure area of ​​the electric filter structure 7.

[0037] The top shielding part 75 is laterally positioned above the electric field filter section 74 to block excessively blown residual screws to a certain extent, allowing the residual screws to pass through the channel of the electric field filter section 74 more efficiently.

[0038] More specifically, the top shielding portion 75 may adopt, but is not limited to, a filter grid structure, and the filter grid channel width of the top shielding portion 75 is smaller than the channel width of the electric field filter grid portion 74.

[0039] Please continue to refer to this. Figure 4 and Figure 5 The top shielding part 75 has a top mounting plate 76 fixedly connected to its inner side for distributively installing the bionic repelling structure 8. Specifically, the bionic repelling structure 8 is provided in several groups, and the several groups of bionic repelling structures 8 are distributedly fixed to the top mounting plate 76. The bionic repelling structure 8 is configured as a vibration generator with a vibrating plate. The vibration generator outputs vibration waves with a frequency range of 50Hz~100Hz to simulate the vibration pulse signal of snail predators and output bionic vibration waves of snail predators to further assist in repelling live snails in various directions, so as to enhance the repelling effect on live snails.

[0040] The installation spacing of several sets of the biomimetic dispersing structures 8 is 10cm~15cm, so as to ensure that the vibration wave forms a uniform coverage in the target area, further improving the separation effect of live snails and snail remains.

[0041] The working process of the pre-removal component is as follows: First, the micro-orifice jet structure 6 is activated, and the pressure control valve 64 adjusts the water pressure and flow rate. The water flows through the pressurization main pipe 61 into the positioning bend pipe 65, and then through the array distribution pipe 62 to each micro-orifice nozzle 63. The micro-orifice nozzle 63 sprays water at a specific pressure to blow up the lighter residual snails, while the live snails, due to their larger mass, remain at the bottom, thus achieving the initial separation of live and residual snails. Subsequently, the live screw blocking part 73 blocks smaller live screws that have shifted on their own or been blown up, preventing them from entering the sorting channel; the electric field filter part 74 further drives away the live screws by dispersing the electric field, while allowing blown-up residual screws to pass through; the top shielding part 75 plays a certain role in blocking excessively blown-up residual screws, allowing residual screws to pass through the channel of the electric field filter part 74 more efficiently and reach the suction area of ​​the drive pump suction head 12; Finally, the biomimetic expulsion structure 8 outputs biomimetic vibration waves from snail predators, further expelling live snails from all directions. Throughout the process, the coordinated action of all components significantly improves the separation effect between live and dead snails.

[0042] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A wind tunnel separation device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches, characterized in that, include: The pump suction conduction structure centrally acquires both live and residual snails to be sorted; The vibrating sieve assembly separates snails into different specifications according to the size of the aperture of the vibrating sieve disc; The self-falling conduction structure is connected and assembled with the pump suction conduction structure at its input end, and the self-falling conduction structure receives the live snails and their residues to be sorted and automatically transports and adaptively drains them. The wind tunnel sorting structure includes a variable frequency fan assembly and a guide inclined cavity tube positioned in a specific location. The guide inclined cavity tube extends obliquely, and its top middle position is connected to the output end of the self-falling conduction structure. The wind power output end of the variable frequency fan assembly is connected to the lower end of the guide inclined cavity tube. The upper end of the guide inclined cavity tube forms a direct-blowing sorting port and different snail throwing routes corresponding to live snails and snail residues, respectively. The snail body collection and storage structure is equipped with a residual snail collection and discharge hopper and a live snail collection and discharge hopper; the live snail collection and discharge hopper and the residual snail collection and discharge hopper are respectively located on different snail throwing routes for live snails and residual snails.

2. The wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches according to claim 1, characterized in that, The pump suction conduction structure includes a flexible delivery conduit and a drive pump suction head; The self-falling conduction structure includes a spiral self-falling inclined tube; The spiral body is inclined and extends obliquely as a whole, and the starting end of the spiral body is connected to the suction head of the drive pump via a flexible conveying pipe. A water filter screen is provided at the bottom of the lower end of the spiral body self-falling inclined tube, and the lower end of the spiral body self-falling inclined tube is connected to the middle of the top side of the guide inclined cavity tube.

3. The wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches according to claim 2, characterized in that, The spiral body has several sets of adaptive balls and / or several sets of elastic protrusions with predetermined elasticity embedded in its bottom inner wall, and the adaptive balls and / or the elastic protrusions are all located on the upper side of the water filter screen.

4. The wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches according to claim 2, characterized in that, The guide inclined cavity tube extends obliquely at a 45° angle, and the top middle position of the obliquely extended guide inclined cavity tube is connected to the lower end of the screw body self-falling inclined tube. The guide inclined cavity tube is provided with a direct blowing sorting port at its upper end corresponding to its extension direction. The wind output end of the variable frequency fan assembly is connected to the lower inlet end of the guide inclined cavity tube. The live snail and the remaining snail falling into the guide inclined cavity tube through the screw body are simultaneously subjected to the wind force output by the variable frequency fan assembly and their own gravity. Due to the mass difference between the live snail and the remaining snail, the wind force output by the variable frequency fan assembly can effectively separate and blow out the live snail and the remaining snail in an upward oblique direction, so that the live snail and the remaining snail complete a parabolic fall at different distances.

5. The wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches according to claim 4, characterized in that, The snail body storage structure also includes a residual snail storage cavity and a live snail storage cavity; Both the residual snail collection hopper and the live snail collection hopper are inclined and extended, and the lower end of the residual snail collection hopper is connected to the residual snail collection and storage cavity, and the lower end of the live snail collection hopper is connected to the live snail collection and storage cavity. The upper end of the residual snail collection hopper is located on the side further away from the direct-blowing sorting port than the live snail collection hopper, while the upper end of the live snail collection hopper is located on the side closer to the direct-blowing sorting port than the residual snail collection hopper.

6. The wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches according to claim 2, characterized in that, The vibrating screen assembly includes a grading vibrating screen plate, a collection hopper, and channel valves; The grading vibrating screen includes several sets of vibrating screens. The several sets of vibrating screens are arranged obliquely from top to bottom between the drive pump suction head of the pump suction conduction structure and the inlet end of the self-falling conduction structure. The several sets of vibrating screens are respectively equipped with a variable frequency vibrating screen drive structure. The collecting hopper and the channel valve are provided in several groups. The inlet ends of the several groups of collecting hoppers are respectively connected to the downward-sloping ends of the several groups of vibrating screens. The outlet ends of the several groups of collecting hoppers are respectively connected to the flexible conveying pipe. The several groups of channel valves are respectively installed at the outlet ends of the several groups of collecting hoppers. The variable frequency fan assembly is connected to the control output terminal of the electronic control module via a circuit, and the control input terminal of the electronic control module is connected to several sets of channel valves via a circuit.

7. The wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches according to claim 2, characterized in that, Also includes: The pre-removal component specifically includes a microporous jet structure, an electro-filter grid structure, and a biomimetic removal structure; The micro-orifice jet structure includes several controllable water pressure array pipes, and the ends of the array pipes are respectively equipped with micro-orifice nozzles facing the outer side of the electrical filter grid structure. The electrical filter grid structure includes a forward filter grid assembly and two sets of lateral filter grid assemblies that are respectively and sequentially arranged on both sides of the forward filter grid assembly. The enclosure area formed by the electrical filter grid structure is correspondingly arranged with the driving pump suction head of the pump suction conduction structure.

8. The wind tunnel sorting device for live and dead bait snails in the cultivation of broad-bodied golden thread leeches according to claim 7, characterized in that, The forward filter assembly and the lateral filter assembly have the same structure, both including a live screw blocking part, an electric field filter part and a top shielding part that are fixedly connected from bottom to top. The live snail blocking part is configured as a cylindrical structure located at the bottom. When the micro-orifice jet structure releases a specific pressure water flow, the live snail blocking part plays a role in displacing and blocking the self-displaced live snails and smaller live snails that are blown up. The electric field filter grid part is configured as a vertical channel filter grid structure located in the middle, so that the blown-up residual snails can pass through the channel of the electric field filter grid part and reach the enclosure area of ​​the electric filter grid structure. The electric field filter grid part is connected to a deflecting electric field through a circuit. The top shield is arranged laterally above the electric field filter to block excessively blown-up residual screws; The biomimetic expulsion structure is provided in several groups, and the several groups of biomimetic expulsion structures are distributed and fixed to the electrical filter grid structure, and the biomimetic expulsion structure outputs the snail's natural enemy biomimetic vibration wave.

9. A method for separating live and residual bait snails in a wind tunnel separation device for the cultivation of broad-bodied golden thread leeches according to claim 8, characterized in that, Includes the following steps: The process involves obtaining live and dead snails, sorting them by size, automatically conveying them, and implementing adaptive drainage. The wind tunnel sorting process is completed based on the quality differences between live and dead snails; The system automatically classifies and stores live and dead snails that have completed the wind tunnel sorting process.

10. The wind tunnel sorting method for live and dead bait snails in the culture of broad-bodied golden thread leeches according to claim 9, characterized in that, The process of obtaining live and dead snails, sorting them by size, automatically conveying them, and adaptively draining them specifically includes: The pump suction head in the pump suction transmission structure concentrates the snails in the breeding area. The live snails and snail residues are then effectively separated into different sizes by a variable frequency vibrating screen component at different specific vibration frequencies. The snails of different sizes are then further divided into different collection troughs and transported to a flexible conveying pipe through a channel valve. From there, they are transported to the snail body self-falling inclined pipe in the self-falling transmission structure. As the live snails and snail residues fall automatically through the self-falling inclined pipe, several sets of adaptive ball bearings and / or several sets of spring-loaded convex ridges assist the falling snails and snail residues to enhance the self-turning effect, thereby accelerating the discharge of water from the snail shells and increasing the quality difference between the live snails and snail residues and improving the efficiency of the subsequent wind tunnel sorting process. At the same time, the water is automatically drained to the water collection and circulation structure by the help of a water filter screen, completing the automatic drainage return circulation. The wind tunnel sorting process based on the quality difference between live and dead snails specifically includes: The variable frequency fan assembly of the wind tunnel sorting structure outputs wind force based on the specific specifications of the live and residual snails. At this time, the live and residual snails falling from the inclined tube into the guide inclined cavity are simultaneously subjected to the wind force output by the variable frequency fan assembly and their own gravity. Due to the mass difference between the live and residual snails, the wind force output by the variable frequency fan assembly separates and blows the live and residual snails out along the upward straight blowing sorting port, so that the live and residual snails fall parabolically at different distances, thus completing the wind tunnel sorting process. The automatic classification and storage of live and dead snails after the wind tunnel sorting process specifically includes: The snail remains that have completed the wind tunnel sorting process automatically fall into the snail remains collection hopper under gravity, while the live snails that have completed the wind tunnel sorting process automatically fall into the live snail collection hopper under gravity, and then further fall into the snail remains collection chamber and the live snail collection chamber respectively.

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