CN114766421A - A oxygenation device for aquaculture in aquaculture rice field - Google Patents
A oxygenation device for aquaculture in aquaculture rice field Download PDFInfo
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- CN114766421A CN114766421A CN202210440320.3A CN202210440320A CN114766421A CN 114766421 A CN114766421 A CN 114766421A CN 202210440320 A CN202210440320 A CN 202210440320A CN 114766421 A CN114766421 A CN 114766421A
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 27
- 238000009360 aquaculture Methods 0.000 title claims abstract description 27
- 244000144974 aquaculture Species 0.000 title claims abstract description 27
- 235000009566 rice Nutrition 0.000 title claims abstract description 27
- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 23
- 240000007594 Oryza sativa Species 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 241000209094 Oryza Species 0.000 claims abstract description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 25
- 239000001301 oxygen Substances 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005276 aerator Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005273 aeration Methods 0.000 abstract description 2
- 238000004458 analytical method Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 241000238557 Decapoda Species 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental Sciences (AREA)
- Data Mining & Analysis (AREA)
- General Physics & Mathematics (AREA)
- Computational Mathematics (AREA)
- Mathematical Physics (AREA)
- Animal Husbandry (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Marine Sciences & Fisheries (AREA)
- Biodiversity & Conservation Biology (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Probability & Statistics with Applications (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Algebra (AREA)
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- Evolutionary Biology (AREA)
- Bioinformatics & Computational Biology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses an oxygenation device for aquaculture in an aquaculture rice field, and relates to the technical field of aquaculture auxiliary devices. The rice field water surface spraying device comprises a filter cylinder arranged in rice field water, a submersible pump arranged in the filter cylinder, and a spraying device arranged above the rice field water surface and communicated with the submersible pump; the spraying device comprises a hollow ring body, a water inlet is formed in one side of the ring body, and the ring body is communicated with the submersible pump through a pipeline; a plurality of nozzles are arranged on the periphery of the ring body. According to the utility model, through the arrangement of the submersible pump and the spray head, when the aerator is used, water is pumped out and then sprayed into the air, and the water is atomized or dripped, so that the contact time of the air and the water is prolonged, more oxygen can be dissolved, and the aeration effect is integrally improved.
Description
Technical Field
The utility model belongs to the technical field of aquaculture auxiliary devices, and particularly relates to an oxygenation device for aquaculture in an aquaculture rice field.
Background
Oxygenation equipment wide application in aquaculture, it is main to increase the oxygen content of aquatic products in order to ensure that aquatic products can not the oxygen deficiency, also can restrain aquatic anaerobe's growth simultaneously, prevent that pond water is rotten and threatens the living environment of aquatic products, the freshwater shrimp is not able to bear or endure the low oxygen environment, its oxygen consumption rate and suffocation point all are higher than general fish, when the oxygen deficiency in the pond, the freshwater shrimp can float first, die at first, consequently, paddy field cultivation freshwater shrimp need use the oxygen content that the oxygenation device increased the aquatic.
However, in the prior art, air is simply pumped into water through a pipeline by using an air pump, so that the dissolved oxygen in the water near the pipeline can be increased, the contact time of the air and the water is short, and the oxygenation effect is poor.
Disclosure of Invention
The utility model aims to provide an oxygenation device for aquaculture of an aquaculture paddy field, which is characterized in that water is pumped out and then sprayed into air through the arrangement of a submersible pump and a spray head, the water is atomized or dripped, the contact time of the air and the water is prolonged, and the problem of poor oxygenation effect in the prior art is solved.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to an oxygenation device for aquaculture in an aquaculture rice field, which comprises a filter cylinder arranged in water in the rice field, a submersible pump arranged in the filter cylinder, and a spraying device arranged above the water surface of the rice field and communicated with the submersible pump; the spraying device comprises a hollow ring body, a water inlet is formed in one side of the ring body, and the ring body is communicated with the submersible pump through a pipeline; a plurality of spray heads are arranged on the peripheral side of the ring body.
Furthermore, the filter cylinder comprises a cylinder body, a plurality of water filtering holes are formed in the peripheral side of the cylinder body, and a filter cloth layer is wrapped on the inner side and/or the outer side of the cylinder body.
Furthermore, the bottom of the filter cylinder is connected with a rectangular plate-shaped base, and drill rods inserted into the soil of the rice field are arranged on four corner sides of the bottom side surface of the base; the drill rod comprises an outer sleeve and an inner sleeve rod which are telescopically sleeved with each other, and a locking bolt A is arranged on the outer sleeve; the end part of the inner loop bar is provided with a conical insertion section.
Furthermore, a cover plate is arranged at the top of the filter cylinder, and a first opening hole for a pipeline to pass through is formed in the cover plate.
Furthermore, a telescopic column with a locking bolt B is arranged at the top of the cover plate, and a cross-shaped support for mounting the ring body is arranged at the top of the telescopic column; the end part of the cross-shaped support is welded with the inner side wall of the ring body.
Further, a photovoltaic cell panel is mounted above the cross-shaped support, and four mounting pieces for mounting the photovoltaic cell panel are arranged on the cross-shaped support; the installed part is a sliding sleeve which slides along the length direction of the cross-shaped support, one side of the sliding sleeve is provided with a protruding part which is extended out of one side of the photovoltaic cell panel, and the sliding sleeve and the protruding part are respectively provided with a locking bolt C and a fastening bolt.
Furthermore, the photovoltaic cell panel is electrically connected with a storage battery arranged in the filter cylinder through a cable, the submersible pump is also connected with a controller, the controller is connected with a liquid level sensor arranged in the filter cylinder, and the storage battery supplies power for the controller and the submersible pump; and the top of the cover plate is provided with a second opening hole for the cable to pass through.
The utility model has the following beneficial effects:
according to the utility model, through the arrangement of the submersible pump and the spray head, water is pumped out and sprayed into the air when the aerator is used, and the water is atomized or dripped, so that the contact time of air and water is prolonged, more oxygen can be dissolved, and the aeration effect is improved integrally.
Of course, it is not necessary for any product to practice the utility model to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the aerator of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a system block diagram of the assay system of the present invention.
Detailed Description
Referring to fig. 1-2, an oxygen increasing device for aquaculture in paddy field comprises a filter cartridge disposed in the paddy field water, a submersible pump disposed inside the filter cartridge, and a spraying device disposed above the paddy field water surface and communicated with the submersible pump; the spraying device comprises a hollow ring body 2, a water inlet is formed in one side of the ring body 2, and the ring body 2 is communicated with the submersible pump through a pipeline; a plurality of nozzles 21 are arranged on the periphery of the ring body 2.
When the rice field filter cartridge is used, rice field water located on the peripheral side of the filter cartridge is filtered into the filter cartridge through the filter cartridge, then water in the filter cartridge is pumped out through the submersible pump and is sprayed out through the spray head 21, an atomizing spray head can be adopted in use, and the water sprayed out from the spray head is dissolved in a small amount of oxygen through air and then falls into the rice field again.
The filter cylinder comprises a cylinder body 1, wherein a plurality of water filtering holes 11 are formed in the peripheral side of the cylinder body 1, a filter cloth layer is wrapped outside the cylinder body 1 during use, and the filter holes 11 are prevented from being blocked by sludge and the like in a rice field or insects with small sizes enter the interior of the filter cylinder through the water filtering holes 11.
The bottom of the filter cylinder is connected with a rectangular plate-shaped base 3, and drill rods 31 inserted into the soil of the rice field are arranged on four corner sides of the bottom side surface of the base 3; the drill rod 31 comprises an outer sleeve 311 and an inner sleeve which are sleeved and telescopic with each other, and a locking bolt A312 is arranged on the outer sleeve 311; the end of the inner shank is provided with a tapered insertion section 313, which facilitates the installation of the device in the paddy field as a whole by the arrangement of the base 3 and the drill rod 31.
Of course, as an extension of the present invention, the top of the filter cartridge is provided with a cover plate 4, and the cover plate 4 is provided with a first opening 41 for the passage of the pipeline. The top of the cover plate 4 is provided with a telescopic column 42 with a locking bolt B40, and the top of the telescopic column 42 is provided with a cross-shaped bracket 43 for mounting the ring body 2; the tip of "ten" style of calligraphy support 43 and the inside wall welding of ring body 2, through the setting of flexible post 42, conveniently adjust flexible post 42 according to actual paddy field depth of water and this oxygenation device's the density of arranging, when flexible post 42 risees, the range of spraying of shower nozzle 21 increases.
A photovoltaic cell panel 5 is arranged above the cross-shaped support 43, and four mounting pieces 6 for mounting the photovoltaic cell panel 5 are arranged on the cross-shaped support 43; installation part 6 is one along the gliding sliding sleeve 61 of "ten" style of calligraphy support 43 length direction, one side of sliding sleeve 61 is provided with the bulge 63 that photovoltaic cell panel 5 one side was visited out, be provided with locking bolt C62 and fastening bolt 64 on sliding sleeve 61 and the bulge 63 respectively, setting through installation part 6, the convenient dismantlement installation to photovoltaic cell panel 5, simultaneously through flexible post 42's setting, aquatic products crab has also been avoided climbing to photovoltaic cell panel 5 on, and convenient when carrying out rice planting through flexible post 42, realize control photovoltaic cell panel 5 and exceed the rice through the flexible of flexible post 42 of control, avoid the rice to photovoltaic cell panel 5's sheltering from.
The photovoltaic cell panel 5 is electrically connected with a storage battery arranged in the filter cartridge through a cable, the submersible pump is also connected with a controller, the controller is connected with a liquid level sensor arranged in the filter cartridge, and the storage battery supplies power for the controller and the submersible pump; and the top of the cover plate 4 is provided with a second opening 44 for passing through the cable; through level sensor, conveniently start the immersible pump when straining a section of thick bamboo inside and have water, close the immersible pump when anhydrous, avoid the immersible pump idle running.
Certainly, in order to better implement the utility model, as shown in fig. 3, the oxygenation device for aquaculture in the rice field provided by the utility model also needs to measure and analyze the oxygen content in the rice field according to a measuring system before implementation, and the oxygenation device is started when the measurement and analysis are reasonable, wherein the measuring system comprises a data acquisition unit, an analysis unit and an execution unit; the data acquisition system is used for acquiring the oxygen content in the rice field to obtain the real-time oxygen content, transmitting the real-time oxygen content to the analysis unit, and determining and analyzing the real-time oxygen content by means of the analysis unit, wherein the specific determination and analysis mode is as follows:
the method comprises the following steps: acquiring real-time oxygen content in a rice field, acquiring the real-time oxygen content once every T1 time, and marking the real-time oxygen content as an oxygen-containing data set Yi, i being 1.. n; yn represents the oxygen content at the latest time;
step two: time interval division is carried out, one day is divided into 24 time intervals, starting from zero point, the time interval from zero point to one point is the first time interval, the rest is analogized in turn, 24 time intervals are obtained, and the time intervals are marked as monitoring time intervals;
step three: then, taking any monitoring time interval to obtain the maximum value and the average value of all the oxygen contents in the time interval, and marking the median value as the determined content after taking the median value of the maximum value and the average value; then acquiring the determined content of nearly thirty days in the period, and carrying out real-finding analysis on the determined content, wherein the real-finding analysis comprises the following specific steps:
s1: marking the determined content as Ri, i ═ 1.. 30; ri is expressed as the assumed content mark Ri at day i, thirty days after the current forward progress;
s2: automatically acquiring the mean value of Ri, marking the mean value as P, and calculating the deviation value L by using a formula, wherein the specific calculation formula is as follows:
s3: when the L value exceeds X1, data deletion is carried out, corresponding Ri values are sequentially obtained from large to small according to | Ri-P |, the Ri values are deleted after each Ri value is selected, then the L values are recalculated for the rest Ri values until the L value does not exceed X1, and X1 is a preset value;
when the L value does not exceed X1, marking the mean value of Ri at the moment as the approved content;
s4: acquiring a next monitoring period, acquiring 24 approved contents, and marking the approved contents as Hi, i-1.. 24;
step four: acquiring the current real-time oxygen content Yn, and generating a preliminary doubt signal when the real-time oxygen content Yn is lower than X2, wherein X2 is a threshold set by a manager and mainly set aiming at the oxygen content in the rice field;
step five: then obtaining the current time period, synchronously obtaining the corresponding approval content H i, if the oxygen content corresponding to the next monitoring time period of the monitoring time period at the moment is higher than that of the current monitoring time period, generating an increase signal, otherwise, generating a tone-meeting signal;
step six: when generating the increase signal, do not use the device of this application to carry out oxygenation, when producing the signal of transferring according to the regulations, use the device of this application to carry out oxygenation.
And the analysis unit is used for supervising the management personnel to perform corresponding operation by virtue of the execution unit according to the conclusion.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand the utility model for and utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides an oxygenation device for aquaculture in paddy field which characterized in that: the rice field water surface spraying device comprises a filter cylinder arranged in rice field water, a submersible pump arranged in the filter cylinder, and a spraying device arranged above the rice field water surface and communicated with the submersible pump;
the spraying device comprises a hollow ring body (2), a water inlet is formed in one side of the ring body (2), and the ring body (2) is communicated with the submersible pump through a pipeline;
a plurality of nozzles (21) are arranged on the periphery of the ring body (2).
2. The oxygenation device for aquaculture in paddy fields according to claim 1, characterized in that said filter cartridge comprises a cylinder body (1), said cylinder body (1) is provided with a plurality of water filtering holes (11) on the periphery, and the inner side and/or outer side of said cylinder body (1) is wrapped with a layer of filter cloth.
3. The oxygenation device for aquaculture in paddy fields according to claim 1, characterized in that the bottom of said filter cartridge is connected with a base (3) in the shape of a rectangular plate, and four corner sides of the bottom side of said base (3) are provided with drill rods (31) inserted into the soil of paddy field.
4. The oxygenation device for aquaculture in paddy fields according to claim 3, characterized in that the drill rod (31) comprises an outer sleeve (311) and an inner sleeve which are telescopically sleeved with each other, and the outer sleeve (311) is provided with a locking bolt A (312); the end of the inner loop bar is provided with a conical insertion section (313).
5. An oxygen increasing device for aquaculture in paddy field according to claim 1 characterized in that the top of said filter cartridge is provided with a cover plate (4), said cover plate (4) is provided with a first opening (41) for the pipe to pass through.
6. The oxygenation device for aquaculture in paddy fields according to claim 5, characterized in that the top of the cover plate (4) is provided with a telescopic column (42) with a locking bolt B (40), and the top of the telescopic column (42) is provided with a cross-shaped bracket (43) for mounting the ring body (2).
7. An oxygen increasing device for aquaculture in paddy field according to claim 6 characterized in that the end of said cross-shaped bracket (43) is welded to the inner side wall of said ring body (2).
8. The oxygenation device for aquaculture in paddy fields according to claim 6, characterized in that a photovoltaic cell panel (5) is mounted above the cross-shaped bracket (43), and four mounting pieces (6) for mounting the photovoltaic cell panel (5) are arranged on the cross-shaped bracket (43).
9. The oxygenation device for aquaculture in the paddy field according to claim 8, characterized in that the mounting member (6) is a sliding sleeve (61) sliding along the length direction of the cross-shaped bracket (43), one side of the sliding sleeve (61) is provided with a protruding part (63) protruding from one side of the photovoltaic cell panel (5), and the sliding sleeve (61) and the protruding part (63) are respectively provided with a locking bolt C (62) and a fastening bolt (64).
10. The oxygenation device for aquaculture of paddy fields according to claim 8, characterized in that said photovoltaic panel (5) is electrically connected to an accumulator disposed inside the filter cartridge through a cable, said submersible pump is also connected to a controller, said controller is connected to a level sensor disposed inside the filter cartridge, and said accumulator supplies power to the controller and the submersible pump; and the top of the cover plate (4) is provided with a second hole (44) for passing a cable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210440320.3A CN114766421B (en) | 2022-04-25 | 2022-04-25 | Oxygenation device for aquaculture in paddy field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210440320.3A CN114766421B (en) | 2022-04-25 | 2022-04-25 | Oxygenation device for aquaculture in paddy field |
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| CN114766421A true CN114766421A (en) | 2022-07-22 |
| CN114766421B CN114766421B (en) | 2023-10-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115349478A (en) * | 2022-09-19 | 2022-11-18 | 蚌埠清水源生态水产养殖股份有限公司 | Aquaculture throws material equipment with even ration |
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| CN211153403U (en) * | 2019-02-25 | 2020-08-04 | 杭州佳田农业开发有限公司 | Mechanical oxygenation device of usefulness is bred to soft-shelled turtle |
| CN210382293U (en) * | 2019-06-15 | 2020-04-24 | 邓州市建国农副产品有限公司 | Aquaculture pond oxygenation device |
| CN211298135U (en) * | 2019-10-24 | 2020-08-21 | 新沂市时集建设发展有限公司 | Oxygenation device for aquaculture |
| CN211745888U (en) * | 2019-12-10 | 2020-10-27 | 肥西稼渔生态农业科技有限公司 | Water supply installation of system is raised together with to garden paddy field shrimp crab |
| CN112362834A (en) * | 2020-10-29 | 2021-02-12 | 广州立信电子科技有限公司 | Water quality intelligent online real-time monitoring analysis management system based on big data |
| CN213819435U (en) * | 2020-12-19 | 2021-07-30 | 科右前旗森淼水产有限责任公司 | Oxygenation device for freshwater shrimp is bred in rice field |
| CN214758673U (en) * | 2021-07-19 | 2021-11-19 | 珠海市伊帆渔业有限公司 | Perch is bred and uses oxygenation device |
| CN216018580U (en) * | 2021-10-19 | 2022-03-15 | 威海顺达源水产育苗养殖有限公司 | Shrimp is bred and uses oxygenation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115349478A (en) * | 2022-09-19 | 2022-11-18 | 蚌埠清水源生态水产养殖股份有限公司 | Aquaculture throws material equipment with even ration |
| CN115349478B (en) * | 2022-09-19 | 2024-02-13 | 五河县盛堂水产养殖专业合作社 | Even quantitative feeding equipment for aquaculture |
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