Water circulation ecological breeding barrel

Abstract

The utility model belongs to the technical field of ecological breeding equipment, and particularly relates to an in-water circulation ecological breeding barrel which is detachably arranged in a breeding pond, a plurality of breeding holes are circumferentially formed in the bottom of the breeding barrel, water permeable holes are circumferentially formed in the top of the breeding barrel, and a multi-layer composite substrate layer sequentially comprises a first soil layer, a second soil layer and a third soil layer from bottom to top, the first soil layer comprises soil and earthworm soil, and the earthworm soil contains active earthworm groups; the second soil layer comprises coco coir, perlite and vermiculite; the third soil layer comprises peat, perlite and vermiculite; the fourth soil layer comprises peat and vermiculite, and the biological-physical synergistic purification system has the beneficial effects that biological-physical synergistic purification is achieved, and the self-purification capacity of the system is improved.

Description

A type of aquatic recirculating ecological aquaculture tank Technical Field

[0001] This utility model belongs to the field of ecological aquaculture equipment technology, specifically a water-circulating ecological aquaculture tank. Background Technology

[0002] Ecological aquaculture technology, as an important approach to achieving sustainable agricultural development, has received widespread attention in the aquaculture sector in recent years. Traditional pond aquaculture methods, plagued by eutrophication, severe wastewater pollution, and low resource utilization, are no longer sufficient to meet the demands of modern green aquaculture. While land-based enclosed tank technology achieves water quality control through solid-liquid separation and wastewater treatment systems, it still faces the following technical challenges:

[0003] ① Insufficient ecosystem stability: Existing aquaculture tanks mostly rely on mechanical filtration equipment (such as aerators and sewage pumps) to maintain water quality, which is energy-intensive and complex to maintain.

[0004] ② Single function of substrate layer: Common constructed wetland or filter media substrates (such as zeolite and gravel) only have physical filtration function and lack biodegradation ability.

[0005] Based on the aforementioned technical problems, this application provides an aquatic recirculating ecological aquaculture tank. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an aquatic circulating ecological aquaculture tank to solve the above-mentioned technical problems of insufficient ecosystem stability and single function of substrate layer.

[0007] The solution adopted in this utility model is: an aquatic circulating ecological aquaculture tank, characterized in that it includes:

[0008] A culture tank is detachably installed inside a culture pond. The bottom of the culture tank has several culture holes circumferentially arranged, and the top has water permeability holes circumferentially arranged.

[0009] The multi-layer composite matrix layer, from bottom to top, includes:

[0010] The first soil layer includes soil and earthworm soil, wherein the earthworm soil contains active earthworm populations.

[0011] The second soil layer includes coconut coir, perlite, and vermiculite;

[0012] The third soil layer includes peat, perlite, and vermiculite;

[0013] The fourth soil layer includes peat and vermiculite.

[0014] The height adjustment mechanism includes a guide trough fixed to the aquaculture tank, a connector that slides with the guide trough, wherein the connector is detachably connected to the aquaculture tank, and an adjustment component that drives the connector to rise and fall.

[0015] Preferably, the weight ratio of soil to vermicompost is 1:1; the weight ratio of coconut coir, perlite, and vermiculite is 6:2:2; the weight ratio of peat, perlite, and vermiculite is 7:2:1; and the weight ratio of peat and vermiculite is 5:1.

[0016] Preferably, the diameter of the aquaculture hole is larger than the diameter of the water permeable hole, and the first layer completely covers the aquaculture hole in a naturally filled state, while the aquaculture hole is located below the water surface of the aquaculture pond in the use state.

[0017] Preferably, the height ratio of the multi-layer composite matrix layer is 2:1:1:1, wherein the first functional layer accounts for 20-30%, the second filter layer accounts for 10-15%, the third buffer layer accounts for 10-15%, and the fourth water-retaining layer accounts for 10-15%.

[0018] Preferably, the adjusting assembly includes: a fixed base fixed to the aquaculture pond, an adjusting screw threadedly engaged with the fixed base, the lower end of the adjusting screw being rotatably engaged with a connecting piece, and a handwheel at the upper end of the adjusting screw.

[0019] Preferably, the guide groove is a T-shaped slide groove, the connecting member is a T-shaped slider that cooperates with the T-shaped slide groove, and the T-shaped slider is connected to the aquaculture tank body by bolts.

[0020] Beneficial effects:

[0021] I. Biological-physical synergistic purification, enhancing the system's self-cleaning capacity: The multi-layered composite matrix layer forms a synergistic purification system of "decomposition-filtration-buffering-water retention" through functional gradient design.

[0022] The active earthworm colonies in the first soil layer can convert organic matter into vermicompost, and the crayfish and other organisms raised in the breeding pond can burrow into the breeding holes to live and produce feces, which significantly improves the efficiency of ammonia nitrogen degradation.

[0023] The second filter layer, made from coconut coir after desalination, has a porosity of 70%. Combined with the porous structure of perlite, it achieves a 92% interception efficiency for suspended solids.

[0024] The third buffer layer has a high peat organic matter content of ≥80%, which can adsorb heavy metal ions in the water.

[0025] The fourth water-retaining layer has a low-level peat humic acid content of ≥50% and a water retention rate of 65%, providing a stable habitat for microorganisms.

[0026] II. Self-adaptive water level adjustment to ensure stable system operation: The height adjustment mechanism achieves precise raising and lowering of the aquaculture tank through a T-shaped slide and screw adjustment assembly.

[0027] The position of the culture tank can be easily adjusted so that the culture hole remains below the water surface, ensuring full contact between the water and the substrate layer; the submersion depth of the substrate layer can be adjusted according to the culture stage.

[0028] III. Waste resource utilization to build a circular economy model: Earthworm soil can produce high-quality organic fertilizer every year, with a total nitrogen, phosphorus and potassium content of 6.8%, which can be directly used in surrounding farmland.

[0029] Nutrients in the tailwater are adsorbed by the matrix layer and then slowly released through the fourth water-retaining layer to provide nutrients for the upper plants, forming a "breeding-planting" cycle system. Attached Figure Description

[0030] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0031] Figure 2 is a magnified view of part A in Figure 1.

[0032] Figure 3 is a schematic diagram of the breeding bucket of this utility model.

[0033] Figure 4 is a cross-sectional view of the breeding bucket of this utility model filled with soil.

[0034] Figure label:

[0035] 1. Breeding tank; 11. Breeding hole; 12. Water permeable hole;

[0036] 2. Aquaculture ponds;

[0037] 3. Multi-layered composite matrix layer; 31. First soil layer; 32. Second soil layer; 33. Third soil layer; 34. Fourth soil layer;

[0038] 4. Height adjustment mechanism; 41. Guide groove; 42. Connector; 43. Adjustment assembly; 431. Fixing base; 432. Adjustment screw; 433. Handwheel. Detailed Implementation

[0039] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the embodiments with reference to Figures 1-3. All structural contents mentioned in the following embodiments are based on the accompanying drawings.

[0040] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0041] Example 1: Basic Structure Example

[0042] As shown in Figures 1-4, the aquatic recirculating ecological aquaculture tank 1 provided in this embodiment includes an aquaculture tank body 1, a multi-layer composite substrate layer 3, and a height adjustment mechanism 4.

[0043] 1. As shown in Figure 3, the main structure of the breeding tank is made of food-grade HDPE material by injection molding. Several breeding holes 11 are evenly distributed around the bottom, and water-permeable holes 12 are provided at the top.

[0044] 2. As shown in Figure 4, the multi-layer composite matrix layer has the following filling structure from bottom to top:

[0045] First soil layer 31: Mix well-rotted garden soil and earthworm soil in a 1:1 weight ratio, with a layer thickness of 30cm.

[0046] Second soil layer 32: a mixture of desalinated coconut coir, perlite and vermiculite in a 6:2:2 ratio, with a layer thickness of 15cm.

[0047] The third soil layer 33: a mixture of high-level peat, perlite and vermiculite in a 7:2:1 ratio, with a layer thickness of 15cm.

[0048] Fourth soil layer 34: low-lying peat and vermiculite mixed in a 5:1 ratio, with a layer thickness of 15cm.

[0049] The active earthworm colonies in the first soil layer can convert organic matter into vermicompost, and its microbial content is more than 10 times higher than that of ordinary soil, which significantly improves the efficiency of ammonia nitrogen degradation.

[0050] The second filter layer, made from coconut coir after desalination, has a porosity of 70%. Combined with the porous structure of perlite, it achieves a 92% interception efficiency for suspended solids.

[0051] The third buffer layer has a high peat organic matter content of ≥80%, which can adsorb heavy metal ions in the water.

[0052] The fourth water-retaining layer has a low-level peat humic acid content of ≥50% and a water retention rate of 65%, providing a stable habitat for microorganisms.

[0053] 3. As shown in Figures 1 and 2, the height adjustment mechanism: the guide groove 41 is a T-shaped slide, which is fixed to the inner wall of the breeding pond 2.

[0054] Connector 42 is an arc-shaped slider that is connected to the aquaculture tank by an M12 bolt.

[0055] The adjustment assembly 43 includes a fixed base 431, an adjustment screw 432, and a handwheel 433.

[0056] Working principle: As shown in Figures 3 and 4, during the breeding process, plants are cultivated in the breeding tank, and the breeding hole 11 is always located 8cm below the water surface. Water enters the substrate layer through the breeding hole 11. Crayfish are raised in the breeding pond and can enter the first soil layer through the breeding hole 11 to live. In order to facilitate the crayfish to burrow and lay eggs, the earthworms in the earthworm soil process organic matter daily. The earthworms can also loosen the first soil layer. The crayfish excrement can fertilize the roots of the plants. The coconut coir layer intercepts more than 90% of the suspended solids, and the peat layer adsorbs heavy metal ions. Finally, the purified water is discharged through the permeable hole 12.

[0057] Example 2: As shown in Figures 1 and 2, the optimized embodiment of the adjustment mechanism is based on Example 1, and the adjustment component 43 is optimized: As shown in Figures 1 and 2, the fixed base 431 adopts a triangular reinforced structure and is fixed to the breeding tank 2 by chemical anchors. The surface of the adjustment screw 432 is plated with hard chrome and matched with a copper nut. The surface of the handwheel 433 is set with anti-slip texture, and the raising and lowering of the breeding tank 1 can be achieved by a single person.

[0058] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A water-circulating ecological aquaculture tank, characterized in that, include: A breeding tank (1) is detachably installed in a breeding pond (2). The breeding tank (1) has several breeding holes (11) arranged around its bottom and water-permeable holes (12) arranged around its top. A multi-layer composite substrate layer (3) is also provided. A height adjustment mechanism (4) is included, which includes a guide groove (41) fixed to the breeding pond (2), a connector (42) that slides with the guide groove (41), and an adjustment component (43) that drives the connector (42) to rise and fall. The connector (42) is detachably connected to the breeding tank (1).

2. The aquatic recirculating ecological aquaculture tank according to claim 1, characterized in that, The diameter of the aquaculture hole (11) is larger than the diameter of the permeable hole (12), and the multi-layer composite matrix layer (3) completely covers the aquaculture hole (11) in the natural filling state. The aquaculture hole (11) is located below the water surface of the aquaculture pond (2) in the use state.

3. The aquatic recirculating ecological aquaculture tank according to claim 1, characterized in that, The height ratio of the multi-layer composite matrix layer (3) is 2:1:1:1, wherein the first functional layer accounts for 20-30%, the second filter layer accounts for 10-15%, the third buffer layer accounts for 10-15%, and the fourth water-retaining layer accounts for 10-15%.

4. The aquatic recirculating ecological aquaculture tank according to claim 1, characterized in that, The adjustment assembly (43) includes: a fixed base (431) fixed to the aquaculture pond (2), an adjustment screw (432) threadedly engaged with the fixed base (431), the lower end of the adjustment screw (432) being rotatably engaged with the connector (42), and a handwheel (433) at the upper end of the adjustment screw (432).

5. The aquatic recirculating ecological aquaculture tank according to claim 1, characterized in that, The guide groove (41) is a T-shaped slide groove, and the connector (42) is a T-shaped slider that cooperates with the T-shaped slide groove. The T-shaped slider is connected to the main body of the breeding tank (1) by bolts.

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