Algae attachment bed for marine ecological restoration

Abstract

The invention discloses an algae attachment bed for marine ecological restoration, which comprises a floating plate floating on the water surface and a net cage arranged in the middle of the floating plate, a plurality of algae attachment parts are arranged in the net cage, a hollow part matched with the net cage is arranged in the middle of the floating plate, the net cage is arranged in the hollow part, and an inflatable floating bag is arranged at the bottom of the net cage. The net cage and the floating plate are arranged in a split mode, the net cage is arranged to be of a movable structure, the inflatable floating bag is arranged at the bottom of the net cage, when the inflatable floating bag is deflated, buoyancy is reduced, the net cage can sink, the algae attachment part can be completely immersed in water, and therefore algae can survive normally; and when the net cage, components in the net cage and algae need to be observed and maintained, the inflatable floating bag is inflated through the inflation pump, so that the buoyancy of the net cage is changed, the net cage can float upwards and be exposed, the net cage can be opened through the side door for maintenance, and the maintenance is more convenient and more labor-saving.

Description

Technical Field

[0001] The present invention relates to the technical field of marine ecological restoration technologies, particularly to the technical field of algal attachment beds for marine ecological restoration. Background Art

[0002] With the development of human civilization, modern industries such as chemical engineering, petroleum, pesticides, insecticides, herbicides, and chemical fertilizers have developed rapidly. Many pollutants are discharged into rivers and eventually flow into the ocean, leading to problems such as heavy metal pollution and eutrophication in marine waters, making the water pollution in the ocean increasingly serious and seriously affecting the stability of the marine ecological environment. Therefore, the restoration of the marine ecological environment is particularly important, and marine bioremediation technology is one of the restoration methods.

[0003] Marine bioremediation technology is an environmental governance method based on biological regulation. Its core is to screen biological groups with specific functions (including plants, microorganisms, and aquatic animals), and through the metabolic activities of organisms, achieve the absorption, transformation, decomposition, removal, or stabilization of pollutants, thereby reducing environmental toxicity and restoring the functions of the ecosystem. This technology can be implemented for directional restoration relying on artificial intervention or achieve natural restoration through the self-organization ability of the ecosystem.

[0004] Among many remediation organisms, algae (especially attached algae) exhibit excellent purification efficiency: on the one hand, they directly absorb pollutants through intracellular enrichment, and on the other hand, they achieve long-term degradation of pollutants through enzymatic reactions. Research shows that the removal rates of nitrogen and phosphorus nutrients in the water body by the sessile algal community can reach over 80% and 60% respectively. Compared with traditional treatment methods, the algal-based remediation system has significant advantages - large sessile algae not only have a large biomass and are easy to harvest on a large scale, but also their metabolites have no risk of secondary pollution. Therefore, in scenarios such as the treatment of coastal eutrophication and the purification of the tail water of sewage treatment plants, algae have become key biological materials for ecological restoration projects.

[0005] An algal attachment bed is a device that can cultivate algae in the ocean and provide basic conditions for the rapid reproduction and stable growth of algae. For example, the Chinese utility model patent with the publication number CN205838692U proposes an algal attachment bed for marine ecological restoration, which includes an aeration disk, a solar panel, a sea surface floating board, a net cage body, and an algal attachment bed. It is characterized in that a rectangular light-transmitting hole is opened in the middle of the sea surface floating board, a solar panel is installed outside the sea surface floating board, the bottom of the sea surface floating board is connected to the net cage body, a plurality of algal attachment beds are installed at equal intervals from top to bottom in the net cage body, a fixed mesh cloth is provided on the algal attachment bed, an algal attachment substrate is installed on the fixed mesh cloth, and an aeration disk is installed at the bottom of the net cage body.

[0006] For another example, an algae attachment bed for marine ecological restoration proposed in a Chinese utility model patent with the publication number CN214015418U relates to the technical field of marine ecological restoration. It includes a main body. Above the bottom end inner wall of the main body, a first connecting block is installed. At the top of the first connecting block, a connecting column is installed. An algae attachment substrate is installed on the outer wall of the connecting column. A protective net is provided on the outer wall of the main body. The top of the main body is connected to a connecting pipe. At the top of the connecting pipe, a top plate is rotatably installed. A filtering device is installed at the bottom of the top plate. A ventilation cover is installed at the top of the top plate.

[0007] However, the problem with the above algae attachment bed is that when the algae attachment bed is in use, it is all placed below the water surface, which is inconvenient for observing or maintaining the algae on the algae attachment bed. When it is necessary to observe or maintain the algae on the algae attachment bed, it may be necessary to lift the entire device or dive into the water for observation and maintenance, which is inconvenient to use. Summary of the Invention

[0008] The purpose of the present invention is to solve the problems in the prior art and propose an algae attachment bed for marine ecological restoration, in which the net cage for cultivating algae can float, facilitating the observation and maintenance of the algae in the net cage.

[0009] To achieve the above purpose, the present invention proposes an algae attachment bed for marine ecological restoration, including a floating plate floating on the water surface and a net cage provided in the middle of the floating plate. A number of algae attachment components are provided in the net cage. A hollowed-out part adapted to the net cage is provided in the middle of the floating plate. The net cage is arranged in the hollowed-out part. An inflatable float bag is provided at the bottom of the net cage. An air pump for cooperating with the inflatable float bag is provided on the net cage or the floating plate. The air pump controls the gas volume of the inflatable float bag to make the net cage float or sink. An opening is provided on the side wall of the net cage, and a side door that can be opened is provided on the opening.

[0010] Preferably, an aeration disc is further provided at the inner bottom of the net cage. A solenoid valve is provided at the output end of the air pump. The output end of the solenoid valve is respectively connected to the aeration disc and the inflatable float bag. The solenoid valve is used to control the connection between the air pump and the aeration disc or the connection between the air pump and the inflatable float bag.

[0011] Preferably, a number of recessed battery compartments are provided on the top of the floating plate. A storage battery is detachably provided in the battery compartment. A photovoltaic panel electrically connected to the storage battery is provided on the top of the battery compartment.

[0012] Preferably, the hollow part is provided with a lifting limit mechanism for cooperating with the net cage to keep the net cage lifting axially. The lifting limit mechanism includes at least two vertically arranged sliding rods and sliding sleeves slidably matched with the sliding rods. The sliding rods are vertically arranged on the side wall of the net cage, the sliding sleeves are arranged on the inner wall of the hollow part and sleeved with the sliding rods, and limiting baffles are respectively arranged at the upper and lower ends of the sliding rods.

[0013] Preferably, an annular skirt is circumferentially arranged at the bottom of the net cage. The annular skirt encloses an installation cavity for accommodating the inflatable floating bladder, and the inflatable floating bladder is fixedly arranged in the installation cavity.

[0014] Preferably, a lighting device is arranged at the top of the net cage. A plurality of optical fibers are arranged at the lower end of the lighting device and cooperate with it. The other ends of the optical fibers are respectively laid on the upper sides of the algae attachment components and lamps connected to the optical fibers are arranged. The lamps are arranged towards the algae attachment components.

[0015] Preferably, the algae attachment components include a plurality of fixed mesh cloths, and a plurality of algae attachment substrates are arranged on the fixed mesh cloths.

[0016] Preferably, ropes are connected to the floating board and / or the net cage, and anchoring components are arranged at the other ends of the ropes.

[0017] Preferably, a locking member is arranged on the floating board near the net cage for cooperating with the top of the net cage to lock the position of the net cage.

[0018] Preferably, the outer periphery of the floating board is a regular quadrilateral or a regular hexagon, and an interconnecting member for interconnecting with another adjacent floating board is arranged on the outer periphery of the floating board.

[0019] Preferably, a vertical central support rod is arranged at the center of the net cage. An equipment box is arranged at the top of the central support rod. The air pump and the solenoid valve are arranged in the equipment box. A hollow channel is arranged in the central support rod, and the air pipe of the air pump and the optical fiber pass through the channel.

[0020] The beneficial effects of an algae attachment bed for marine ecological restoration of the present invention: By separately arranging the net cage and the floating board, setting the net cage as a movable structure, and arranging an inflatable floating bladder at the bottom of the net cage. When the inflatable floating bladder deflates, the buoyancy decreases, and the net cage can sink, so that the algae attachment components can be completely immersed in water, enabling the algae to survive normally. When it is necessary to observe and maintain the net cage, the components inside the net cage and the algae, the air pump is used to inflate the inflatable floating bladder, so that the buoyancy of the net cage changes, and the net cage can float and be exposed. The net cage can be opened through the side door for maintenance, which is more convenient and labor-saving.

[0021] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. Description of the Drawings

[0022] Figure 1 Figure 1 is a schematic perspective view of the first embodiment of an algae attachment bed for marine ecological restoration according to the present invention.

[0023] Figure 2 Figure 2 is a schematic front view of the first embodiment of an algae attachment bed for marine ecological restoration according to the present invention.

[0024] Figure 3 Figure 3 Figure 2 is a schematic sectional view taken along line A-A in Figure 2.

[0025] Figure 4 Figure 4 is a schematic top view of an algae attachment bed for marine ecological restoration according to the present invention.

[0026] Figure 5 Figure 5 is a schematic front sectional view of the second embodiment of an algae attachment bed for marine ecological restoration according to the present invention.

[0027] Figure 6 Figure 6 is a schematic top view of the third embodiment.

[0028] In the figures: 1 - floating board, 2 - net cage, 3 - inflatable float bag, 4 - air pump, 5 - aeration disc, 6 - photovoltaic panel, 7 - storage battery, 8 - storage battery, 9 - sliding sleeve, 10 - daylighting device, 11 - battery compartment, 12 - hollow part, 13 - optical fiber, 14 - lamp, 15 - fixed mesh cloth, 16 - algae attachment substrate, 17 - rope, 18 - anchoring component, 19 - locking piece, 20 - interconnecting piece, 21 - side door, 22 - annular skirt, 23 - central support rod, 24 - equipment box. Detailed Embodiments

[0029] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0030] In the description of the present invention, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is customarily placed. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.

[0032] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "install", "connect", and "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0033] Refer to Figures 1-3, an algal attachment bed for marine ecological restoration according to the present invention includes a floating board 1 floating on the water surface. The floating board 1 is circular ring-shaped. A hollow part 12 is provided in the middle of the floating board 1. A net cage 2 is provided in the hollow part 12. The net cage 2 is separately arranged from the floating board 1. A number of algal attachment components are provided in the net cage 2. An inflatable float 3 is provided at the bottom of the net cage 2. An air pump 4 for cooperating with the inflatable float 3 is provided at the top of the net cage 2. The air pump 4 controls the gas volume of the inflatable float 3 to make the net cage 2 float or sink. An opening is provided on the side wall of the net cage 2, and a side door 21 that can be opened is provided on the opening. In this embodiment, the net cage 2 is separately arranged from the floating board 1, the net cage 2 is set as a movable structure, and the inflatable float 3 is provided at the bottom of the net cage 2. When the inflatable float 3 deflates, the buoyancy decreases, and the net cage 2 can sink, so that the algal attachment components can be completely immersed in water, enabling the algae to survive normally. When it is necessary to maintain the net cage 2 and the components and algae inside the net cage 2, the air pump 4 is used to inflate the inflatable float 3, so that the buoyancy of the net cage 2 changes, and the net cage 2 can float and be exposed. The net cage 2 can be opened through the side door 21 for maintenance, which is more convenient and labor-saving.

[0034] Refer to Figure 3 , an aeration disc 5 is further provided at the inner bottom of the net cage 2. An electromagnetic valve is provided at the output end of the air pump 4. The output end of the electromagnetic valve is respectively communicated with the aeration disc 5 and the inflatable float 3. The electromagnetic valve is used to control the communication between the air pump 4 and the aeration disc 5 or the communication between the air pump 4 and the inflatable float 3. The aeration disc 5 is used to aerate the inside of the net cage 2 to assist the growth of algae. The aeration disc 5 and the inflatable float 3 share one air pump 4, saving costs and reducing the volume of the equipment.

[0035] Refer to Figure 1 , Figure 2 , a lifting limit mechanism for cooperating with the net cage 2 to keep the net cage 2 lifting axially is provided in the hollow part 12. The lifting limit mechanism includes two vertically arranged sliding rods 8 and sliding sleeves 9 slidably matched with the sliding rods 8. The sliding rods 8 are vertically arranged on the side wall of the net cage 2. The sliding sleeves 9 are arranged on the inner wall of the hollow part 12 and are sleeved and connected with the sliding rods 8. Limit baffle plates 81 are respectively provided at the upper and lower ends of the sliding rods 8. By providing the lifting limit mechanism, the lifting direction and position of the net cage 2 can be limited to prevent it from tilting or lifting excessively during lifting. When lifting, the net cage 2 can lift axially along the sliding rods 8 and the sliding sleeves 9, and the limit baffle plates 81 can limit the upper and lower lifting limit positions.

[0036] Refer to Figure 1 , Figure 3, a circumferential annular skirt 22 is provided at the bottom of the cage 2. The annular skirt 22 encloses an installation cavity for accommodating the inflatable buoy 3, and the inflatable buoy 3 is fixedly arranged in the installation cavity. The annular skirt 22 is used to limit the circumferential direction of the inflatable buoy 3, preventing the inflatable buoy 3 from protruding circumferentially from the cage 2 and affecting the lifting of the cage 2. At the same time, the annular skirt 22 can also make the fixing of the inflatable buoy 3 more stable.

[0037] Refer to Figure 3 , the algae attachment component includes a plurality of fixed mesh cloths 15, and a plurality of algae attachment substrates 16 are provided on the fixed mesh cloths 15. The fixed mesh cloths 15 are used for layering and supporting, and the algae attachment substrates 16 are used for growing algae.

[0038] Refer to Figure 4 , a locking member 19 is provided on the floating board 1 near the cage 2 for cooperating with the top of the cage 2 to lock the position of the cage 2. The locking member 19 can lock the position of the cage 2, prevent it from swinging with the waves, and improve stability.

[0039] Refer to Figure 1 、 Figure 3 , a vertical central support rod 23 is provided at the center of the cage 2. An equipment box 24 is provided at the top of the central support rod 23. The air pump 4 and the solenoid valve are arranged in the equipment box 24. A hollow channel is provided in the central support rod 23, and components such as the air pipe of the air pump 4 pass through the channel. It is convenient to support the equipment. Embodiment 2

[0040] Refer to Figure 5 , on the basis of Embodiment 1, a lighting device 10 is provided at the top of the cage 2. A plurality of optical fibers 13 are provided at the lower end of the lighting device 10 for cooperating with it. The other ends of the optical fibers 13 are respectively laid on the upper sides of the respective algae attachment components and are provided with lamps 14 connected to the optical fibers 13. The lamps 14 are arranged facing the algae attachment components. The lighting device 10 can introduce external natural light into the optical fibers 13, and then the natural light is input into the lamps 14 through the optical fibers 13. The lamps 14 irradiate the light on the respective layers of algae attachment components, thereby assisting the growth of algae, enabling the lower-layer algae attachment components to also receive light, and making the growth of the upper and lower layers more uniform, and making full use of natural light.

[0041] Refer to Figure 5 , a plurality of recessed battery compartments 11 are provided at the top of the floating board 1. A storage battery 7 is detachably arranged in the battery compartments 11. A photovoltaic panel 6 electrically connected to the storage battery 7 is provided at the top of the battery compartments 11. The photovoltaic panel 6 converts solar energy into electrical energy and then stores it in the storage battery 7, and the storage battery 7 supplies electrical energy to each device to maintain operation.

[0042] Refer to Figure 5, a rope 17 is connected to the floating board 1, and an anchoring component 18 is provided at the other end of the rope 17. The anchoring component 18 is a heavy block that can sink in the water drop, so as to fix the floating board 1 and prevent it from being carried away by the water flow.

[0043] Specifically, in this embodiment, the locking member 19 is a plurality of bolts. The bolts pass through the limiting baffle 81 at the top of the net cage 2 and are fixedly connected to the floating board 1. When it is necessary to raise the net cage 2, the corresponding bolts can be loosened. Embodiment Three

[0044] Refer to Figure 6 , the outer periphery of the floating board 1 is a regular hexagon, and an interconnecting member 20 for connecting with another adjacent floating board 1 is provided on the outer periphery of the floating board 1. Multiple sets of the algae attachment beds for marine ecological restoration of the present application can be connected together, which is convenient for maintenance.

[0045] Working process of the present invention: During the working process of the algae attachment bed for marine ecological restoration of the present invention, algae are planted in the algae attachment components in the net cage 2. The air volume of the inflatable float 3 is controlled by the air pump 4 to make the net cage 2 float or sink. When the inflatable float 3 deflates, the buoyancy decreases, and the net cage 2 can sink so that the algae attachment components can be completely immersed in water, enabling the algae to survive normally. When it is necessary to maintain the net cage 2 and the components and algae inside the net cage 2, the air pump 4 is used to inflate the inflatable float 3, so that the buoyancy of the net cage 2 changes, and the net cage 2 can float and be exposed. The net cage 2 can be opened through the side door 21 for maintenance, which is more convenient and labor-saving.

[0046] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The electric slide rail slider, cylinder, welding machine, electric telescopic rod, and internal components of the controller all adopt conventional models in the prior art, and their internal structures belong to the prior art structures. Workers can complete their normal operations according to the prior art manuals. In addition, the circuit connection adopts the conventional connection method in the prior art, and no specific description will be made here.

[0047] It should be noted that although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications made to the embodiments described in this article, or the equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the protection scope of the present invention patent.

Claims

1. An algae attachment bed for marine ecological restoration, comprising a floating plate (1) floating on the water surface and a net cage (2) arranged in the middle of the floating plate (1), wherein a plurality of algae attachment components are arranged in the net cage (2), characterized in that: The middle of the floating plate (1) is provided with a hollow portion (12) adapted to the net box (2), the net box (2) is arranged in the hollow portion (12), the bottom of the net box (2) is provided with an inflatable floating bag (3), the net box (2) or the floating plate (1) is provided with an air pump (4) for cooperating with the inflatable floating bag (3), the air pump (4) controls the amount of gas in the inflatable floating bag (3) to make the net box (2) float or sink, the side wall of the net box (2) is provided with an opening, and the opening is provided with an openable side door (21).

2. The algae attachment bed for marine ecological restoration as claimed in claim 1, characterized in that: An aeration plate (5) is also provided at the bottom of the cage (2), and an electromagnetic valve is provided at the output end of the air pump (4). The output ends of the electromagnetic valve are respectively connected to the aeration plate (5) and the air-filled floating bag (3). The electromagnetic valve is used to control whether the air pump (4) is connected to the aeration plate (5) or to the air-filled floating bag (3).

3. The algae attachment bed for marine ecological restoration as claimed in claim 1, characterized in that: A plurality of recessed battery compartments (11) are provided on the top of the floating plate (1), storage batteries (7) are detachably arranged in the battery compartments (11), and a photovoltaic panel (6) electrically connected to the storage batteries (7) is provided on the top of the battery compartments (11).

4. The algae attachment bed for marine ecological restoration as claimed in claim 1, characterized in that: The hollow portion (12) is provided with a lifting limit mechanism for cooperating with the net box (2) so that the net box (2) can maintain axial lifting and lowering. The lifting limit mechanism comprises at least two vertically arranged sliding rods (8) and sliding sleeves (9) slidably cooperating with the sliding rods (8). The sliding rods (8) are vertically arranged on the side walls of the net box (2). The sliding sleeves (9) are arranged on the inner wall of the hollow portion (12) and are sleeve-connected with the sliding rods (8). Limit baffles (81) are respectively provided at the upper and lower ends of the sliding rods (8).

5. The algae attachment bed for marine ecological restoration as claimed in claim 1, characterized in that: The bottom of the net box (2) is provided with an annular skirt (22) in the circumferential direction, and the annular skirt (22) encloses a mounting cavity for accommodating the inflatable floating bag (3), and the inflatable floating bag (3) is fixedly arranged in the mounting cavity.

6. The algae attachment bed for marine ecological restoration as claimed in claim 1, characterized in that: A light collector (10) is provided on the top of the net box (2), and a plurality of optical fibers (13) cooperating therewith are provided at the lower end of the light collector (10). The other ends of the optical fibers (13) are laid on the upper side of each algae attachment component and are provided with lamps (14) connected to the optical fibers (13), and the lamps (14) are arranged toward the algae attachment components.

7. The algae attachment bed for marine ecological restoration as claimed in claim 1, characterized in that: The algae attachment component comprises a plurality of fixed meshes (15), and a plurality of algae attachment substrates (16) are provided on the fixed meshes (15).

8. The algae attachment bed for marine ecological restoration as claimed in claim 1, characterized in that: The floating plate (1) and / or the net box (2) are connected to a rope (17), and the other end of the rope (17) is provided with an anchoring component (18).

9. The algae attachment bed for marine ecological restoration as claimed in claim 1, characterized in that: A locking piece (19) is provided on the floating plate (1) near the net box (2) for cooperating with the top of the net box (2) to lock the position of the net box (2).

10. The algae attachment bed for marine ecological restoration as claimed in claim 1, characterized in that: The outer periphery of the floating plate (1) is a regular quadrilateral or a regular hexagon, and an interconnecting piece (20) for interconnecting with another adjacent floating plate (1) is provided on the outer periphery of the floating plate (1).

Images