CN220897621U - Sang Ji fishpond system with ecological circulation - Google Patents

Sang Ji fishpond system with ecological circulation Download PDF

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Publication number
CN220897621U
CN220897621U CN202322568087.XU CN202322568087U CN220897621U CN 220897621 U CN220897621 U CN 220897621U CN 202322568087 U CN202322568087 U CN 202322568087U CN 220897621 U CN220897621 U CN 220897621U
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area
sang
silkworm excrement
silkworm
pond
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顾兴国
王莉
王斌
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Zhejiang Academy of Agricultural Sciences
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Zhejiang Academy of Agricultural Sciences
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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Abstract

The utility model relates to the field of agriculture, and provides a Sang Ji fishpond system with ecological cycle, which comprises a mulberry forest area, a silkworm breeding area and a fishpond area; a water delivery component is arranged in the fish pond area, a drainage canal is arranged between the silkworm rearing area and the fish pond area, a storage area is arranged in the silkworm rearing area, the drainage canal is connected with the storage area, the storage area is used for storing silkworm excrement and mulberry leaf residues, and the water delivery component is used for pumping water from the fish pond area and delivering the water to the storage area so that water flows drive the silkworm excrement and the mulberry leaf residues in the storage area to enter the fish pond area along the drainage canal; the storage area comprises a silkworm excrement area and Sang Sheou; the silkworm excrement area and the mulberry leaf area are positioned at two sides of the drainage canal; or the silkworm excrement area is positioned at one end of the drainage canal, and the mulberry leaf area is positioned in the drainage canal. When the fish pond compound agricultural system is used, the linkage between the fish pond area and the silkworm rearing area is enhanced, and the flow of feeding silkworm excrement is shortened, so that the whole association of the Sang Ji fish pond compound agricultural system is tighter, and the process is more simplified.

Description

Sang Ji fishpond system with ecological circulation
Technical Field
The utility model relates to the field of agriculture, in particular to a Sang Ji fishpond system with ecological cycle.
Background
The production mode of the Sang Ji fish pond is as follows: the silkworm excrement is fed to fish, pond sludge is used for fertilizing the mulberry, cultivating the silkworm and cultivating the fish, so that virtuous circle of interdependence and promotion of the mulberry, the silkworm, the fish and the mud is formed, waterlogging is avoided, an ideal ecological environment is created, ideal economic benefit is obtained, and environmental pollution is reduced.
In the prior art, sang Ji fish pond system is when transporting silkworm excrement, usually carries silkworm excrement on the transport means first, after arriving the pond district, say that silkworm excrement is thrown and is fed into the pond again, and the process is loaded down with trivial details, consumes more manpower simultaneously, leads to Sang Ji fish pond system overall process loaded down with trivial details, and production efficiency is not high, leads to Sang Ji fish pond composite agricultural system to decompose and abandon gradually from this.
For this purpose, we propose a Sang Ji pond system with ecological cycle.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a Sang Ji fishpond system with ecological cycle, which solves the technical problems that the whole flow of the Sang Ji fishpond system is complex, the production efficiency is low, and the Sang Ji fishpond composite agricultural system is gradually decomposed and abandoned.
Technical proposal
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
An ecological cycle Sang Ji fishpond system comprises a mulberry forest area, a silkworm breeding area and a fishpond area; a water delivery assembly is arranged in the fish pond area, a drainage canal is arranged between the silkworm rearing area and the fish pond area, a storage area is arranged in the silkworm rearing area, the drainage canal is connected with the storage area, the storage area is used for storing silkworm excrement and mulberry leaf residues, and the water delivery assembly is used for pumping water from the fish pond area and delivering the silkworm excrement and the mulberry leaf residues into the fish pond area, so that water flow drives the silkworm excrement and the mulberry leaf residues in the storage area to enter the fish pond area along the drainage canal;
the storage area comprises a silkworm excrement area and Sang Sheou;
The silkworm excrement area and the mulberry leaf area are positioned at two sides of the drainage channel; or the silkworm excrement area is positioned at one end of the drainage canal, and the mulberry leaf area is positioned in the drainage canal.
In a further embodiment, the mulberry forest zone surrounds a silkworm area and a pond area, the pond area including a fish pond for raising fish, an island for separating the fish pond from the pond area, and a settling area for stacking fish manure.
In a further embodiment, the silkworm excrement area comprises a plurality of fermentation areas, the fermentation areas are connected with a material guiding plate, the material guiding plate is connected with a drainage canal, and the material guiding plate is inclined downwards from the fermentation areas to the drainage canal.
In a further embodiment Sang Sheou includes a stockpile area connected to the drain.
In a further embodiment, the water delivery assembly comprises a water pump, a silkworm excrement drainage assembly and a mulberry leaf drainage assembly, wherein the water pump is respectively connected with the silkworm excrement drainage assembly and the mulberry leaf drainage assembly, the water pump is used for pumping water from the fish pond area, the silkworm excrement drainage assembly is connected with the silkworm excrement area, and the mulberry leaf drainage assembly is connected with Sang Sheou.
In a further embodiment, the silkworm excrement drainage assembly comprises a plurality of silkworm excrement pipes and a plurality of silkworm excrement water valves, wherein the silkworm excrement water valves are arranged on the silkworm excrement pipes, one ends of the silkworm excrement pipes are connected with the water suction pump, the other ends of the silkworm excrement pipes are communicated with the fermentation areas, and the number of the silkworm excrement pipes is correspondingly equal to that of the fermentation areas.
In a further embodiment, the mulberry leaf drainage assembly further comprises Sang Sheguan and a mulberry leaf water valve, wherein the mulberry leaf water valve is arranged on Sang Sheguan, one end of the Sang Sheguan valve is connected with the water suction pump, and the other end of the Sang Sheguan valve is communicated with Sang Sheou.
In a further embodiment, the drainage channel is inclined downwardly from the silkworm rearing area towards the pond area.
In a further embodiment, when the silkworm excrement area is located at one end of the drainage canal and the mulberry leaf area is located in the drainage canal, the drainage canal is provided with a filter screen, and the filter screen is used for preventing mulberry leaf residues from passing through when silkworm excrement passes through smoothly.
Advantageous effects
The utility model provides a Sang Ji fishpond system with ecological circulation. Compared with the prior art, the method has the following beneficial effects:
1. Under Sang Ji fish pond system, after fermentation, the silkworm excrement produced in the silkworm breeding area is produced, and the feed capable of feeding the fish pond area is produced, the fermented silkworm excrement is taken out from the storage area by utilizing pond water in the fish pond area through the water suction pump, and the fish is fed along the drainage canal into the fish pond area, so that the linkage between the fish pond area and the silkworm breeding area is enhanced, the flow of feeding the silkworm excrement is shortened, the whole connection of the Sang Ji fish pond composite agricultural system is tighter, and the process is more simplified.
2. Meanwhile, the residue of the mulberry leaves left after feeding in the silkworm house can be collected and discharged into the fishpond area together with silkworm excrement, so that the excessive fermentation of silkworm excrement is prevented, the insufficient quantity of feed is caused, the pressure of feeding the feed is relieved, a new solution is provided for treating the residue of the mulberry leaves, and the trouble of bringing extra steps for solving the residue of the mulberry leaves is avoided.
3. Silkworm excrement and mulberry leaf residues are sequentially fed to the fish pond area, and the fed fish is rich in more nutrition, so that the fish grows more rapidly, the output efficiency of the whole Sang Ji fish pond system is improved, and the value of the Sang Ji fish pond system is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an ecological cycle Sang Ji pond system.
Fig. 2 is a schematic structural diagram of an internal device of a system according to an embodiment.
Fig. 3 is a schematic structural diagram of an internal device of the second system.
The reference numerals in the figures are:
1 mulberry forest area, 2 silkworm rearing area, 3 pond area, 301 fish rearing pond, 302 island, 303 sedimentation area, 401 water pump, 402 silkworm excrement pipe, 403 silkworm excrement water valve, 404 Sang Sheguan, 405 mulberry leaf water valve, 501 silkworm excrement area, 502 Sang Sheou, 503 fermentation area, 504 stacking area, 505 material guide plate, 6 drainage canal, 601 water flushing port, 602 filter screen.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The Sang Ji fishpond system with ecological cycle solves the problems that the production efficiency of the overall cycle process of the Sang Ji fishpond system is slow, the overall flow is complicated and the relevance is not tight enough, and when in use, the recycling treatment of the residual mulberry leaves is realized, and the compactness between the fish ponds is enhanced.
The technical scheme in the embodiment of the application aims to solve the technical problems, and the overall thought is as follows:
In Sang Ji pond system, traditional mode "pond base species mulberry, mulberry leaf feed silkworm, silkworm excrement rearing fish, fish manure pond, pond mud choking mulberry" under the novel mode of production of contrast, expose a lot of problems, for example step is inseparable inadequately on the whole, spends time for this needs to improve production efficiency, and strengthen the relevance of entire system to make Sang Ji pond system send powerful vitality again, innovate traditional mode, make Sang Ji pond system more accord with present development mode.
In addition, under the traditional circulation mode of Sang Ji fish pond system, the pond surface area is basically unchanged, the air contacts with the pond surface, the amount of oxygen dissolved in the pond is small, the fluidity of water in the pond is not strong, and after the water surface of the pond absorbs oxygen to a certain content, the oxygen absorption rate is reduced, so that the oxygen content in the water is insufficient when the fish breathes, and the normal growth of the fish is influenced.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Embodiment one:
Referring to fig. 1 to 3, an ecological cycle Sang Ji fish pond system comprises a mulberry forest area 1, a silkworm raising area 2 and a fish pond area 3; a water delivery component is arranged in the fish pond area 3, a drainage channel 6 is arranged between the silkworm rearing area 2 and the fish pond area 3, a storage area is arranged in the silkworm rearing area 2, the drainage channel 6 is connected with the storage area, the storage area is used for storing silkworm excrement and mulberry leaf residues, the water delivery component is used for pumping water from the fish pond area 3 and delivering the water to the storage area, so that water flows drive the silkworm excrement and the mulberry leaf residues in the storage area to enter the fish pond area 3 along the drainage channel 6; the storage area comprises silkworm excrement areas 501 and Sang Sheou 502,502; the silkworm excrement areas 501 and Sang Sheou are positioned on two sides of the drainage channel 6; or the silkworm excrement area 501 is positioned at one end of the drainage channel 6, and Sang Sheou 502,502 is positioned in the drainage channel 6;
When the fish pond is ready to be fed, silkworm excrement and mulberry leaf residues are collected from a silkworm house and placed in silkworm excrement areas 501 and Sang Sheou and 502 respectively for standby, when feeding is needed, a water suction pump 401 is started, water is pumped from a fish pond area 3, then water flows into the silkworm excrement areas 501 and Sang Sheou respectively through a silkworm excrement drainage assembly and a mulberry leaf drainage assembly, silkworm excrement in a fermentation area 503 and mulberry leaves in a stacking area 504 are sequentially brought into a drainage canal 6, and the feeding process is completed along with the drainage canal 6 flowing into the fish pond area 3, so that the production flow is shortened, and the production efficiency is increased.
Referring to fig. 1, a mulberry forest zone 1 surrounds a silkworm breeding zone 2 and a pond zone 3, the pond zone 3 includes a fish breeding pond 301, an island 302 and a precipitation zone 303, the fish breeding pond 301 is used for breeding fishes, the island 302 is used for separating the fish breeding pond 301 from the precipitation zone 303, and the precipitation zone 303 is used for stacking fish dung;
In the Sang Ji fish pond system, the mulberry forest area 1 surrounds the silkworm rearing area 2 and the fish pond area 3 so that mulberry leaves can be transported to the silkworm rearing area 2 more quickly, and silkworm excrement and mulberry leaf residues can be transported to the fish pond area 3 more quickly, thereby enhancing the compactness between each other.
Referring to fig. 2 and 3, the silkworm excrement area 501 comprises a plurality of fermentation areas 503, the fermentation areas 503 are connected with a material guiding plate 505, the material guiding plate 505 is connected with a drainage channel 6, and the material guiding plate 505 is inclined downwards from the fermentation areas 503 to the drainage channel 6;
Silkworm excrement collected from silkworm houses is respectively placed into different fermentation areas 503, the silkworm excrement after fermentation is driven by water flow to enter the drainage channel 6 along the material guide plate 505, the material guide plate 505 is inclined downwards, the discharge of silkworm excrement can be accelerated, the material conveying speed is accelerated, and the efficiency of the whole process is improved.
Sang Sheou 502 the stack area 502 includes a stack area 504, the stack area 504 being connected to the drain 6;
The residual mulberry leaf residues left in silkworms in a silkworm house are collected in a stacking area 504 in a mulberry leaf area 502, after silkworm excrement is conveyed, insufficient silkworm excrement is prevented, the mulberry leaf residues are reused, the mulberry leaf residues are also discharged into a fish pond area 3 for feeding, and the fed fish is rich in more nutrients, so that the fish grows more rapidly, the output efficiency of the whole Sang Ji fish pond system is improved, and the value of the Sang Ji fish pond system is improved.
Referring to fig. 2 and 3, the water delivery assembly includes a water pump 401, a silkworm excrement drainage assembly and a mulberry leaf drainage assembly, the water pump 401 is respectively connected with the silkworm excrement drainage assembly and the mulberry leaf drainage assembly, the water pump 401 is used for pumping water from the fish pond area 3, the silkworm excrement drainage assembly is connected with the silkworm excrement area 501, and the mulberry leaf drainage assembly is connected with Sang Sheou 502,502;
After the water is pumped by the water pump 401, the water is respectively brought into the silkworm excrement areas 501 and Sang Sheou and 502 by the silkworm excrement drainage assembly and the mulberry leaf drainage assembly, so that the utilization rate of water resources in the fish pond area 3 is increased, the contact between the water in the fish pond area 3 and oxygen can be increased in the circulation process, the oxygen content in the water is increased, and the growth of fish is facilitated.
The silkworm excrement drainage assembly comprises a plurality of silkworm excrement pipes 402 and a plurality of silkworm excrement water valves 403, wherein the silkworm excrement water valves 403 are arranged on the silkworm excrement pipes 402, one end of each silkworm excrement pipe 402 is connected with the water suction pump 401, the other end of each silkworm excrement pipe 402 is communicated with the fermentation area 503, and the number of the silkworm excrement pipes 402 is correspondingly equal to that of the fermentation areas 503;
After silkworm excrement is fermented, a silkworm excrement water valve 403 is opened, the silkworm excrement pipe 402 is controlled to flow into water, so that the fermented silkworm excrement is driven to enter a drainage channel 6, fish is fed, a fermented fermentation area 503 is freely controlled to open a valve for draining, and unfermented silkworm excrement is not affected.
The mulberry leaf drainage assembly further comprises Sang Sheguan and a mulberry leaf water valve 405, the mulberry leaf water valve 405 is arranged on the Sang Sheguan, one end of the Sang Sheguan 404 is connected with the water suction pump 401, and the other end is communicated with the Sang Sheou 502;
After the mulberry leaf residues are placed in the stacking area 504, if the fermentation area 503 is not completed, the mulberry leaf water valve 405 is opened, so that Sang Sheguan is opened to discharge water, and the mulberry leaf residues are driven to enter the fishpond area 3, so that the fish eat a part of feed first, and the problem of insufficient fish food caused by insufficient silkworm excrement is solved.
Referring to fig. 2 and 3, the drainage channel 6 is inclined downward from the silkworm rearing area 2 toward the pond area 3;
The drainage canal 6 is arranged obliquely downwards, so that silkworm excrement and mulberry leaf residues are brought into the silkworm excrement areas 501 and Sang Sheou and guided into the fishpond area 3 better, the fish grain transporting time is shortened, and the production efficiency of the Sang Ji fishpond system is improved.
Embodiment two:
Referring to fig. 3, when the silkworm excrement region 501 is located at one end of the drainage canal 6 and Sang Sheou 502,502 is located in the drainage canal 6, the drainage canal 6 is provided with a filter screen 602, and the filter screen 602 is used for preventing the residue of mulberry leaves from passing through when silkworm excrement passes through smoothly;
When the silkworm excrement area 501 is positioned at one end of the drainage canal 6 and Sang Sheou 502,502 is positioned in the drainage canal 6, the flowing silkworm excrement and mulberry leaf residues need to enter the fishpond area 3 respectively, the filter screen 602 can smoothly pass through the silkworm excrement, the mulberry leaf residues are fixed in the drainage canal 6, and when the filter screen 602 is taken away, the mulberry leaf residues can smoothly pass through the filter screen 602, so that the silkworm excrement and the mulberry leaf residues enter the fishpond area 3 respectively, and the fish can eat the silkworm excrement with more nutrition first and then supplement some mulberry leaf residues.
In summary, compared with the prior art, the method has the following beneficial effects:
1. Under Sang Ji fish pond system, after the silkworm excrement generated in the silkworm rearing area 2 is fermented, the feed capable of feeding the fish pond area 3 is generated, the fermented silkworm excrement is brought out of the storage area by utilizing pond water in the fish pond area 3 through the water suction pump 401, enters the fish pond area 3 along the drainage channel 6, and is fed to the fish, so that the linkage between the fish pond area 3 and the silkworm rearing area 2 is enhanced, the flow of feeding the silkworm excrement is shortened, the whole connection of the Sang Ji fish pond composite agricultural system is tighter, and the process is more simplified.
2. Meanwhile, the residue of the mulberry leaves left after feeding in the silkworm house can be collected and discharged into the fishpond area 3 together with silkworm excrement, so that the condition that the silkworm excrement is excessively long in fermentation, the quantity of feed is insufficient, the pressure of feeding the feed is relieved, a new solution is provided for treating the residue of the mulberry leaves, and the trouble of bringing extra steps for solving the residue of the mulberry leaves is avoided.
3. Silkworm excrement and mulberry leaf residues are fed to the fish pond area 3 in sequence, and the fed fish is rich in more nutrition, so that the fish grows more rapidly, the output efficiency of the whole Sang Ji fish pond system is improved, and the value of the Sang Ji fish pond system is improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (9)

1. The Sang Ji fishpond system with ecological cycle is characterized by comprising Sang Linou (1), a silkworm breeding area (2) and a fishpond area (3);
A water delivery assembly is arranged in the fish pond area (3), a drainage canal (6) is arranged between the silkworm rearing area (2) and the fish pond area (3), a storage area is arranged in the silkworm rearing area (2), the drainage canal (6) is connected with the storage area, the storage area is used for storing silkworm excrement and mulberry leaf residues, and the water delivery assembly is used for pumping water from the fish pond area (3) and delivering the water to the storage area so that water flows to drive the silkworm excrement and mulberry leaf residues in the storage area to enter the fish pond area (3) along the drainage canal (6);
The storage area comprises silkworm excrement areas (501) and Sang Sheou (502);
The silkworm excrement area (501) and the Sang Sheou (502) are positioned on two sides of the drainage channel (6); or the silkworm excrement area (501) is positioned at one end of the drainage channel (6), and the Sang Sheou (502) is positioned in the drainage channel (6).
2. The Sang Ji fish pond system of claim 1, wherein the Sang Linou (1) surrounds a silkworm rearing area (2) and a pond area (3), the pond area (3) comprising a fish rearing pond (301), an island (302) and a settling area (303), the fish rearing pond (301) being used for rearing fish, the island (302) being used for separating the fish rearing pond (301) from the settling area (303), the settling area (303) being used for stacking fish manure.
3. The Sang Ji fish pond system according to claim 1, wherein the silkworm excrement area (501) comprises a plurality of fermentation areas (503), a plurality of fermentation areas (503) are connected with a material guiding plate (505), the material guiding plate (505) is connected with a drainage canal (6), and the material guiding plate (505) is inclined downwards from the fermentation areas (503) to the drainage canal (6).
4. The Sang Ji pond system of claim 1, wherein the Sang Sheou (502) includes a stockpiling region (504), the stockpiling region (504) being connected to a drain (6).
5. A Sang Ji fish pond system as claimed in claim 3, wherein the water delivery assembly comprises a water pump (401), a silkworm excrement drain assembly and a mulberry leaf drain assembly, the water pump (401) is respectively connected with the silkworm excrement drain assembly and the mulberry leaf drain assembly, the water pump (401) is used for pumping water from the fish pond area (3), the silkworm excrement drain assembly is connected with the silkworm excrement area (501), and the mulberry leaf drain assembly is connected with the Sang Sheou (502).
6. The Sang Ji fish pond system as recited in claim 5, wherein the silkworm excrement drainage assembly comprises a plurality of silkworm excrement pipes (402) and a plurality of silkworm excrement water valves (403), the plurality of silkworm excrement water valves (403) are installed on the silkworm excrement pipes (402), one ends of the silkworm excrement pipes (402) are connected with the water suction pump (401), the other ends of the silkworm excrement pipes are communicated with the fermentation areas (503), and the number of the silkworm excrement pipes (402) is equal to that of the fermentation areas (503).
7. The Sang Ji pond system of claim 5, wherein the mulberry leaf drain assembly further comprises Sang Sheguan (404), a mulberry leaf water valve (405), the mulberry leaf water valve (405) is mounted on Sang Sheguan (404), one end of the Sang Sheguan (404) is connected with a water suction pump (401), and the other end is communicated with Sang Sheou (502).
8. The Sang Ji pond system according to claim 1, wherein the drain (6) is inclined downwardly from the silkworm rearing area (2) towards the pond area (3).
9. The Sang Ji pond system according to claim 8, wherein the drain (6) is provided with a screen (602) when the silkworm excrement region (501) is located at one end of the drain (6) and the Sang Sheou (502) is located in the drain (6), the screen (602) being configured to prevent the passage of mulberry leaf residue when silkworm excrement is passing smoothly.
CN202322568087.XU 2023-09-21 2023-09-21 Sang Ji fishpond system with ecological circulation Active CN220897621U (en)

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CN202322568087.XU CN220897621U (en) 2023-09-21 2023-09-21 Sang Ji fishpond system with ecological circulation

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Application Number Priority Date Filing Date Title
CN202322568087.XU CN220897621U (en) 2023-09-21 2023-09-21 Sang Ji fishpond system with ecological circulation

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CN220897621U true CN220897621U (en) 2024-05-07

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