Blue-green algae bloom salvaging device based on air flotation separation

Abstract

The cyanobacterial bloom salvaging device comprises a rubber boat, the top of the rubber boat is fixedly connected with a sewage collecting pool, the rear side of the sewage collecting pool is fixedly connected with a lifting mechanism, the top of the front side of the lifting mechanism is fixedly connected with an air flotation machine, and the air flotation machine is fixedly connected with a water outlet of the air flotation machine. A slag scraping plate is fixedly connected to the top of the air flotation machine, a shovel plate is fixedly connected to the front side of the top of the sewage collection tank, a traction rope roller is arranged in the middle of the top of the rear side of the sewage collection tank, and a positioning mechanism is fixedly connected to the middle of the rear side of the sewage collection tank; by arranging the rubber boat, the sewage collection tank, the air flotation machine, the slag scraping plate, the shovel plate, the traction rope roller and the positioning mechanism, efficient salvage and collection of cyanobacterial blooms are achieved; an operator only needs to float the whole device on the surface of a water pool through a rubber boat, and cyanobacterial blooms are conveyed into a sewage collection pool through a shovel plate and separated through an air flotation machine.

Description

A device for dredging cyanobacterial blooms based on air flotation separation Technical Field

[0001] This utility model relates to the field of cyanobacterial bloom dredging technology, specifically to a cyanobacterial bloom dredging device based on air flotation separation. Background Technology

[0002] Cyanobacterial blooms are a natural phenomenon caused by the excessive proliferation of cyanobacteria in water bodies. They typically manifest as a thick layer of blue-green algae covering the water surface, sometimes forming a full-blown algal bloom. This phenomenon usually occurs in nutrient-rich, stagnant or slow-flowing water bodies, such as lakes, reservoirs, slow-flowing sections of rivers, and stagnant coastal bays. The appearance of cyanobacterial blooms not only affects the aesthetics of the water body, but more importantly, it causes serious water pollution, impacting the survival of aquatic organisms and human health.

[0003] According to patent document CN218833747U, a shore-based algae-water separation device is disclosed, including a filter screen, a collection structure connected to the bottom of the filter screen, a water distribution bag connected to the top of the filter screen, and a support structure connected to the outside of the filter screen. The device adopts a conical funnel-shaped design. The water distribution bag allows algae-rich water to enter the algae-water separation device evenly. During algae-water separation, the algae-rich water flows obliquely from the top of the conical filter device to the bottom collection funnel under the action of gravity, which can effectively improve the algae-water separation efficiency. Based on the filtration principle, the filter screen with the corresponding pore size can be selected according to different dominant types of cyanobacterial blooms and cyanobacterial cell concentrations, enabling targeted algae-water separation treatment of cyanobacterial blooms. This solves the problem that occasional cyanobacterial blooms in lakes, reservoirs, bays, or river bays are not suitable for removal using mechanical cyanobacterial harvesting technology or in-situ algae control technology. It achieves efficient and rapid collection of cyanobacteria in algae blooms, and is low-carbon and environmentally friendly, with a simple structure, easy operation, and low cost.

[0004] When removing cyanobacterial blooms from ponds, workers usually use boats or other watercraft to carry out the work. This method is not only inefficient but also has high labor costs. If the removal is carried out on land, it is restricted by the water area and it is difficult to reach deep water areas. Summary of the Invention

[0005] The purpose of this invention is to provide a cyanobacterial bloom retrieval device based on air flotation separation, so as to solve the problems of low efficiency, high labor costs and water area restrictions mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cyanobacterial bloom dredging device based on air flotation separation, comprising a rubber boat, a sewage collection tank fixedly connected to the top of the rubber boat, a lifting mechanism fixedly connected to the rear side of the sewage collection tank, an air flotation machine fixedly connected to the top of the front side of the lifting mechanism, a scraper plate fixedly connected to the top of the air flotation machine, a shovel plate fixedly connected to the front top of the sewage collection tank, a traction rope roller provided in the middle of the top rear side of the sewage collection tank, and a positioning mechanism fixedly connected to the middle of the rear side of the sewage collection tank;

[0007] The shovel plate includes a shovel plate connecting shell, a motor connecting plate is fixedly connected to the top front side of the shovel plate connecting shell, a motor is fixedly connected to the front side of the motor connecting plate, and a turntable is fixedly connected to the output end of the motor.

[0008] Preferably, pusher roller connecting blocks are fixedly connected to both the left and right sides of the front side of the shovel plate connecting shell, an inclined shovel plate is fixedly connected to the front side of the inner wall of the shovel plate connecting shell, pusher rollers are rotatably connected to the inner sides of the two inclined shovel plates, a track is fitted to the outer wall of the turntable, a second turntable is fitted to the inner wall of the track away from the turntable, and the inner wall of the second turntable is fixedly connected to the middle of the outer wall of the pusher roller.

[0009] Preferably, the positioning mechanism includes two support rods. The bottom of the front side of each of the two support rods is fixedly connected to both sides of the rear side of the sewage collection tank. An inverted L-shaped connecting block is fixedly connected to the top of the front side of each of the two support rods, which are close to each other. A traction rope guide block is fixedly connected to the bottom of each of the two inverted L-shaped connecting blocks. The left and right sides of the traction rope guide block are hollowed out. An L-shaped connecting plate is fixedly connected to the front side of each of the two inverted L-shaped connecting blocks. A bidirectional hydraulic push rod is fixedly connected to the top of the L-shaped connecting plate.

[0010] Preferably, hinge blocks are fixedly connected to the outer sides of both inverted L-shaped connecting blocks, V-shaped rotating rods are rotatably connected to the inner walls of both hinge blocks, uprights are fixedly connected to the tops of both hinge blocks, and guide crossbars are fixedly connected to the outer tops of both uprights.

[0011] Preferably, the inner walls of both guide crossbars are slidably connected to expansion and contraction sliders, the top inner walls of both expansion and contraction sliders are fixedly connected to columnar crossbars, the bottoms of both expansion and contraction sliders are rotatably connected to the top of the V-shaped rotating rod, the ends of both columnar crossbars that are far apart from each other are fixedly connected to columnar crossbar connecting plates, and the rear sides of the inner sides of both columnar crossbar connecting plates are fixedly connected to the left and right ends of the bidirectional hydraulic push rod.

[0012] Preferably, the bottom of each of the two V-shaped rotating rods is fixedly connected to a retractable plate, and the inner side of each of the two retractable plates is fixedly connected to a clamping rod, the inner side of each of the two clamping rods extending to the left and right sides of the inner wall of the traction rope guide block.

[0013] Preferably, the lifting mechanism includes an inverted U-shaped frame, a support block fixedly connected to the top rear side of the inverted U-shaped frame, and rotating rod connecting blocks fixedly connected to all four rear sides of the inverted U-shaped frame. A servo motor connecting plate is fixedly connected to the rear side of the support block, and a servo motor is fixedly connected to the rear side of the servo motor connecting plate. A rotating shaft transmission rod is fixedly connected to the output end of the servo motor, and a rotating shaft is fixedly connected to the left end of the rotating shaft transmission rod. A third turntable transmission rod is rotatably connected to the inner side of both the upper and lower sets of rotating rod connecting blocks. A third turntable is fixedly connected to the left and right sides of the outer walls of the two third turntable transmission rods. The left end of the top third turntable transmission rod extends to the outer side of the rotating rod connecting block on the top left side and is fixedly connected. There is a fourth turntable. The outer wall of the rotating shaft is fitted with a second track. The side of the second track away from the rotating shaft is fitted onto the outer wall of the fourth turntable. The outer walls of the left and right sets of third turntables are fitted with third tracks. The rear bottom of the two third tracks are fixedly connected to T-shaped lifting plate connecting rods. The front side of the T-shaped lifting plate connecting rods is fixedly connected to a T-shaped lifting plate. The middle of the outer wall of the T-shaped lifting plate is slidably connected to the inner side of the inverted U-shaped frame. The left and right sides of the T-shaped lifting plate on the front side of the inverted U-shaped frame are fixedly connected to T-shaped lifting plate guide slide rods. The rear sides of the two T-shaped lifting plate guide slide rods are slidably connected to the left and right sides of the front side of the inverted U-shaped frame. The top front side of the T-shaped lifting plate is fixedly connected to the bottom of the air flotation machine.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By incorporating a rubber boat, a sewage collection tank, an air flotation machine, a scraper, a shovel, a traction rope roller, and a positioning mechanism, this device achieves efficient dredging and collection of cyanobacterial blooms. During operation, operators simply use the rubber boat to float the entire device on the surface of the pool and use the shovel to transport the cyanobacterial blooms to the sewage collection tank for separation by the air flotation machine, thus easily completing the dredging operation. The positioning mechanism also significantly improves the stability of the dredging operation, preventing the dredging effect from being affected by device misalignment. Furthermore, the device has a simple structure, is easy to operate, and is easy to maintain and repair, greatly improving the efficiency and quality of the dredging operation and possessing broad application prospects and promotional value.

[0016] 2. By installing a shovel, the blue-green algae attached to the bottom of the pool can be effectively removed. The removed blue-green algae is pushed into the sewage collection tank by the rotation of the pusher roller, which improves the efficiency of blue-green algae removal. At the same time, the rotation of the pusher roller can also clean the blue-green algae attached to the front side of the shovel, avoiding the accumulation of blue-green algae and ensuring the normal use of the shovel, further improving the continuity and stability of the removal operation.

[0017] 3. By incorporating a traction rope roller and positioning mechanism, precise positioning of the device is achieved, ensuring both efficiency and safety in the retrieval operation. In actual operation, operators only need to activate the bidirectional hydraulic push rod to quickly clamp and limit the traction rope through a series of precise mechanical linkages. The entire process is smooth and stable. Furthermore, the design of the expansion plate cleverly solves the problem of slippage that may occur during the clamping process, further enhancing the practicality and reliability of the device. The successful application of this retrieval device will undoubtedly provide strong technical support for the control of cyanobacterial blooms and contribute to the improvement and protection of the water environment. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the main three-dimensional structure of this utility model;

[0019] Figure 2 is a schematic diagram of the three-dimensional separation structure of the main body of this utility model;

[0020] Figure 3 is a schematic diagram of the three-dimensional structure of the shovel plate of this utility model;

[0021] Figure 4 is a three-dimensional structural diagram of the positioning mechanism of this utility model;

[0022] Figure 5 is a three-dimensional structural diagram of the lifting mechanism of this utility model.

[0023] In the diagram: 1. Rubber boat; 2. Sewage collection tank; 3. Flotation machine; 4. Sludge scraper; 5. Shovel; 51. Shovel connecting shell; 52. Slanted shovel; 53. Motor connecting plate; 54. Pusher roller connecting block; 55. Motor; 56. Turntable; 57. Track; 58. Second turntable; 59. Pusher roller; 6. Traction rope roller; 7. Positioning mechanism; 71. Support column; 72. Inverted L-shaped connecting block; 73. Traction rope guide block; 74. Hinge block; 75. V-shaped rotating rod; 76. Expansion plate; 77. Clamping rod; 78. Column; 79. Guide crossbar; 710. Expansion plate 711. Slider; 712. Columnar crossbar; 713. Columnar crossbar connecting plate; 714. L-shaped connecting plate; 715. Bidirectional hydraulic push rod; 8. Lifting mechanism; 81. Inverted U-shaped frame; 82. Rotary rod connecting block; 83. Support block; 84. Servo motor connecting plate; 85. Servo motor; 86. Rotary shaft transmission rod; 87. Rotary shaft; 88. Second track; 89. Third turntable transmission rod; 810. Third turntable; 811. Fourth turntable; 812. Third track; 813. T-shaped lifting plate connecting rod; 814. T-shaped lifting plate; 815. T-shaped lifting plate guide slide rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1, 2, 3, 4 and 5. This utility model provides a technical solution: a cyanobacterial bloom dredging device based on air flotation separation, including a rubber boat 1, a sewage collection tank 2 fixedly connected to the top of the rubber boat 1, a lifting mechanism 8 fixedly connected to the rear side of the sewage collection tank 2, an air flotation machine 3 fixedly connected to the top of the front side of the lifting mechanism 8, a scraper plate 4 fixedly connected to the top of the air flotation machine 3, a shovel plate 5 fixedly connected to the front top of the sewage collection tank 2, a traction rope roller 6 provided in the middle of the top of the rear side of the sewage collection tank 2, and a positioning mechanism 7 fixedly connected to the middle of the rear side of the sewage collection tank 2.

[0026] The entire device is moved on the water surface by a rubber boat 1, which facilitates the retrieval of cyanobacterial blooms. The sewage collection tank 2 is set up to collect cyanobacterial blooms. The air flotation machine 3 is set up to introduce air bubbles into the sewage, causing the cyanobacterial blooms to attach to the air bubbles and float to the surface. The scraper plate 4 is set up to scrape off and collect the cyanobacterial blooms that float to the surface. The shovel plate 5 is set up to collect the cyanobacterial blooms in the water tank and put them into the sewage collection tank 2. The traction rope roller 6 is set up to facilitate the operator to control the movement direction and speed of the device, improving the flexibility and efficiency of the retrieval operation. The positioning mechanism 7 is set up to fix the device at a specific position to prevent the device from shifting due to external factors such as water flow, and to ensure the stability of the retrieval operation.

[0027] Please refer to Figure 3. The shovel plate 5 includes a shovel plate connecting shell 51. A motor connecting plate 53 is fixedly connected to the top front side of the shovel plate connecting shell 51. A motor 55 is fixedly connected to the front side of the motor connecting plate 53. A turntable 56 is fixedly connected to the output end of the motor 55. Push roller connecting blocks 54 are fixedly connected to the left and right sides of the front side of the shovel plate connecting shell 51. An inclined shovel plate 52 is fixedly connected to the front side of the inner wall of the shovel plate connecting shell 51. Push rollers 59 are rotatably connected to the inner sides of the two inclined shovel plates 52. A track 57 is fitted on the outer wall of the turntable 56. A second turntable 58 is fitted on the side of the inner wall of the track 57 away from the turntable 56. The inner wall of the second turntable 58 is fixedly connected to the middle of the outer wall of the push roller 59.

[0028] When it is necessary to remove blue-green algae from the pool, the motor 55 is started. The output end of the motor 55 drives the turntable 56 to rotate, the turntable 56 drives the track 57 to rotate, the track 57 drives the second turntable 58 to rotate, and the second turntable 58 drives the pusher roller 59 to rotate on the top of the inclined shovel plate 52. During the rotation, the pusher roller 59 can push the blue-green algae scooped up by the inclined shovel plate 52 towards the sewage collection pool 2. The inclined shovel plate 52 can remove the blue-green algae attached to the bottom of the pool. At the same time, during the rotation, the pusher roller 59 can clean the blue-green algae attached to the front of the shovel plate 5, preventing the blue-green algae from accumulating on the front of the shovel plate 5 and affecting the normal use of the shovel plate 5.

[0029] Please refer to Figure 4. The positioning mechanism 7 includes two support rods 71. The bottom front sides of the two support rods 71 ​​are fixedly connected to both sides of the rear side of the sewage collection tank 2. The top front sides of the two support rods 71 ​​are fixedly connected to inverted L-shaped connecting blocks 72 on their adjacent sides. The bottom of the two inverted L-shaped connecting blocks 72 is fixedly connected to a traction rope guide block 73. The left and right sides of the traction rope guide block 73 are hollowed out. The front side of the two inverted L-shaped connecting blocks 72 is fixedly connected to an L-shaped connecting plate 713. The top of the L-shaped connecting plate 713 is fixedly connected to a bidirectional hydraulic push rod 714. The outer sides of the two inverted L-shaped connecting blocks 72 are fixedly connected to hinge blocks 74. The inner walls of the two hinge blocks 74 are rotatably connected to V-shaped rotating rods 75. The tops of the two hinge blocks 74 are fixedly connected to a vertical rod. The top outer sides of the two uprights 78 are fixedly connected to guide crossbars 79. The inner walls of the two guide crossbars 79 are slidably connected to expansion and contraction sliders 710. The top inner walls of the two expansion and contraction sliders 710 are fixedly connected to columnar crossbars 711. The bottoms of the two expansion and contraction sliders 710 are rotatably connected to the top of the V-shaped rotating rod 75. The ends of the two columnar crossbars 711 that are far apart from each other are fixedly connected to columnar crossbar connecting plates 712. The rear inner sides of the two columnar crossbar connecting plates 712 are fixedly connected to the left and right ends of the bidirectional hydraulic push rod 714. The bottoms of the two V-shaped rotating rods 75 are fixedly connected to expansion and contraction plates 76. The inner sides of the two expansion and contraction plates 76 are fixedly connected to clamping rods 77. The inner sides of the two clamping rods 77 extend to the left and right sides of the inner wall of the traction rope guide block 73.

[0030] When the device needs to be positioned in a certain area of ​​the pool, the bidirectional hydraulic push rod 714 is activated. The telescopic end of the bidirectional hydraulic push rod 714 pushes the columnar crossbar connecting plate 712 to move. The columnar crossbar connecting plate 712 causes the columnar crossbar 711 to slide on the inner wall of the guide crossbar 79. The columnar crossbar 711 causes the retractable slider 710 to slide on the inner wall of the guide crossbar 79. The retractable slider 710 causes the V-shaped rotating rod 75 to rotate around the hinge block 74. The V-shaped rotating rod 75 causes the retractable plate 76 to move. 6 drives the clamping rod 77 to move, clamping and fixing the traction rope on the inner wall of the traction rope guide block 73, thereby limiting the traction rope and preventing it from slipping off the inner wall of the traction rope guide block 73, improving the stability of the traction rope and ensuring the firmness of the device's positioning. At the same time, the expansion plate 76 can expand and contract the traction rope, facilitating clamping and releasing the traction rope, improving the practicality and flexibility of the device. Through the setting of this positioning mechanism 7, the device can be quickly and stably positioned, improving the efficiency and safety of salvage operations.

[0031] Please refer to Figure 5. The lifting mechanism 8 includes an inverted U-shaped frame 81. A support block 83 is fixedly connected to the top rear side of the inverted U-shaped frame 81. Rotary rod connecting blocks 82 are fixedly connected to all four sides of the rear side of the inverted U-shaped frame 81. A servo motor connecting plate 84 is fixedly connected to the rear side of the support block 83. A servo motor 85 is fixedly connected to the rear side of the servo motor connecting plate 84. A rotating shaft transmission rod 86 is fixedly connected to the output end of the servo motor 85. A rotating shaft 87 is fixedly connected to the left end of the rotating shaft transmission rod 86. A third turntable transmission rod 89 is rotatably connected to the inner side of both the upper and lower sets of rotating rod connecting blocks 82. A third turntable 810 is fixedly connected to the left and right sides of the outer walls of the two third turntable transmission rods 89. The left end of the top third turntable transmission rod 89 extends to the outer side of the rotating rod connecting block 82 on the top left side and is fixedly connected to a fourth turntable 81. 1. The outer wall of the rotating shaft 87 is fitted with a second track 88. The side of the second track 88 away from the rotating shaft 87 is fitted with the outer wall of the fourth turntable 811. The outer walls of the two sets of third turntables 810 on the left and right are fitted with third tracks 812. The rear bottom of the two third tracks 812 is fixedly connected with a T-shaped lifting plate connecting rod 813. The front side of the T-shaped lifting plate connecting rod 813 is fixedly connected with a T-shaped lifting plate 814. The middle of the outer wall of the T-shaped lifting plate 814 is slidably connected to the inner side of the inverted U-shaped frame 81. The left and right sides of the T-shaped lifting plate 814 on the front side of the inverted U-shaped frame 81 are fixedly connected with T-shaped lifting plate guide slide rods 815. The rear sides of the two T-shaped lifting plate guide slide rods 815 are slidably connected to the left and right sides of the front side of the inverted U-shaped frame 81. The top front side of the T-shaped lifting plate 814 is fixedly connected to the bottom of the air flotation machine 3.

[0032] When the air flotation machine 3 needs to be raised or lowered, it is activated. The servo motor 85 drives the rotating shaft transmission rod 86 to rotate, which in turn drives the rotating shaft 87 to rotate. Since the second track 88 is respectively sleeved on the outer wall of the rotating shaft 87 and the fourth turntable 811, the rotation of the rotating shaft 87 can drive the second track 88 to move. The movement of the second track 88 can drive the fourth turntable 811 to rotate. Since the fourth turntable 811 is fixedly connected to the left end of the top third turntable transmission rod 89, the rotation of the fourth turntable 811 can drive the top third turntable transmission rod 89 to rotate. At the same time, since the outer walls of the two third turntable transmission rods 89 are respectively sleeved with third tracks 812, when the top third turntable transmission rod 89 rotates, it can drive the third track 812 that meshes with it. 2. The movement of the third track 812 can drive the bottom third turntable transmission rod 89 to rotate. At this time, the two third turntable transmission rods 89 can drive the third turntable 810 on them to rotate synchronously. Since the T-shaped lifting plate connecting rod 813 is fixedly connected to the rear bottom of the two third tracks 812, the movement of the two third tracks 812 can drive the T-shaped lifting plate connecting rod 813 to move up and down. The movement of the T-shaped lifting plate connecting rod 813 can drive the T-shaped lifting plate 814 to rise and fall. Since the top front side of the T-shaped lifting plate 814 is fixedly connected to the bottom of the air flotation machine 3, the rise and fall of the T-shaped lifting plate 814 can drive the air flotation machine 3 to rise and fall, thereby realizing the lifting and falling operation of the air flotation machine 3, which is convenient for the staff to dredge the blue-green algae bloom.

[0033] Working principle: When it is necessary to remove blue-green algae from the pool, the motor 55 is started. The output end of the motor 55 drives the turntable 56 to rotate, the turntable 56 drives the track 57 to rotate, the track 57 drives the second turntable 58 to rotate, and the second turntable 58 drives the pusher roller 59 to rotate on the top of the inclined shovel plate 52. During the rotation, the pusher roller 59 can push the blue-green algae scooped up by the inclined shovel plate 52 towards the sewage collection pool 2. The inclined shovel plate 52 can remove the blue-green algae attached to the bottom of the pool. At the same time, during the rotation, the pusher roller 59 can clean the blue-green algae attached to the front of the shovel plate 5.

[0034] When the device needs to be positioned in a certain area of ​​the pool, the bidirectional hydraulic push rod 714 is activated. The telescopic end of the bidirectional hydraulic push rod 714 pushes the columnar crossbar connecting plate 712 to move. The columnar crossbar connecting plate 712 drives the columnar crossbar 711 to slide on the inner wall of the guide crossbar 79. The columnar crossbar 711 drives the expansion and contraction slider 710 to slide on the inner wall of the guide crossbar 79. The expansion and contraction slider 710 drives the V-shaped rotating rod 75 to rotate around the hinge block 74. The V-shaped rotating rod 75 drives the expansion and contraction plate 76 to move. The expansion and contraction plate 76 drives the clamping rod 77 to move. The clamping rod 77 clamps and fixes the traction rope on the inner wall of the traction rope guide block 73.

[0035] When the air flotation machine 3 needs to be raised or lowered, it is activated. The servo motor 85 drives the rotating shaft transmission rod 86 to rotate, which in turn drives the rotating shaft 87 to rotate. Since the second track 88 is respectively sleeved on the outer wall of the rotating shaft 87 and the fourth turntable 811, the rotation of the rotating shaft 87 can drive the second track 88 to move. The movement of the second track 88 can drive the fourth turntable 811 to rotate. Since the fourth turntable 811 is fixedly connected to the left end of the top third turntable transmission rod 89, the rotation of the fourth turntable 811 can drive the top third turntable transmission rod 89 to rotate. At the same time, since the outer walls of the two third turntable transmission rods 89 are respectively sleeved with third tracks 812, when the top third turntable transmission rod 89 rotates, it can drive the third track 812 that meshes with it. 2. The movement of the third track 812 can drive the bottom third turntable transmission rod 89 to rotate. At this time, the two third turntable transmission rods 89 can drive the third turntable 810 on them to rotate synchronously. Since the T-shaped lifting plate connecting rod 813 is fixedly connected to the rear bottom of the two third tracks 812, the movement of the two third tracks 812 can drive the T-shaped lifting plate connecting rod 813 to move up and down. The movement of the T-shaped lifting plate connecting rod 813 can drive the T-shaped lifting plate 814 to rise and fall. Since the top front side of the T-shaped lifting plate 814 is fixedly connected to the bottom of the air flotation machine 3, the rise and fall of the T-shaped lifting plate 814 can drive the air flotation machine 3 to rise and fall, thereby realizing the lifting and falling operation of the air flotation machine 3, which is convenient for the staff to dredge the blue-green algae bloom.

[0036] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for harvesting cyanobacterial blooms based on air flotation separation, characterized in that: The equipment includes a rubber boat (1), a sewage collection tank (2) fixedly connected to the top of the rubber boat (1), a lifting mechanism (8) fixedly connected to the rear side of the sewage collection tank (2), an air flotation machine (3) fixedly connected to the top of the front side of the lifting mechanism (8), a scraper plate (4) fixedly connected to the top of the air flotation machine (3), a shovel plate (5) fixedly connected to the front top of the sewage collection tank (2), a traction rope roller (6) provided in the middle of the top of the rear side of the sewage collection tank (2), and a positioning mechanism (7) fixedly connected to the middle of the rear side of the sewage collection tank (2); the shovel plate (5) includes a shovel plate connecting shell (51), a motor connecting plate (53) fixedly connected to the front top of the shovel plate connecting shell (51), a motor (55) fixedly connected to the front side of the motor connecting plate (53), and a turntable (56) fixedly connected to the output end of the motor (55).

2. The cyanobacterial bloom retrieval device based on air flotation separation according to claim 1, characterized in that: Pusher roller connecting blocks (54) are fixedly connected to both the left and right sides of the front side of the shovel connecting shell (51). An inclined shovel plate (52) is fixedly connected to the front side of the inner wall of the shovel connecting shell (51). Pusher rollers (59) are rotatably connected to the inner sides of the two inclined shovel plates (52). A track (57) is fitted on the outer wall of the turntable (56). A second turntable (58) is fitted on the side of the inner wall of the track (57) away from the turntable (56). The inner wall of the second turntable (58) is fixedly connected to the middle of the outer wall of the pusher roller (59).

3. The cyanobacterial bloom retrieval device based on air flotation separation according to claim 1, characterized in that: The positioning mechanism (7) includes two support rods (71). The bottom of the front side of the two support rods (71) is fixedly connected to both sides of the rear side of the sewage collection tank (2). The top of the front side of the two support rods (71) is fixedly connected to an inverted L-shaped connecting block (72) on the side that is close to each other. The bottom of the two inverted L-shaped connecting blocks (72) is fixedly connected to a traction rope guide block (73). The left and right sides of the traction rope guide block (73) are hollowed out. The front side of the two inverted L-shaped connecting blocks (72) is fixedly connected to an L-shaped connecting plate (713). The top of the L-shaped connecting plate (713) is fixedly connected to a bidirectional hydraulic push rod (714).

4. The cyanobacterial bloom retrieval device based on air flotation separation according to claim 3, characterized in that: The outer sides of the two inverted L-shaped connecting blocks (72) are fixedly connected to hinge blocks (74), the inner walls of the two hinge blocks (74) are rotatably connected to V-shaped rotating rods (75), the tops of the two hinge blocks (74) are fixedly connected to uprights (78), and the tops of the outer sides of the two uprights (78) are fixedly connected to guide crossbars (79).

5. The cyanobacterial bloom retrieval device based on air flotation separation according to claim 4, characterized in that: The inner walls of the two guide crossbars (79) are slidably connected with expansion and contraction sliders (710), the top inner walls of the two expansion and contraction sliders (710) are fixedly connected with columnar crossbars (711), the bottoms of the two expansion and contraction sliders (710) are rotatably connected to the top of the V-shaped rotating rod (75), the ends of the two columnar crossbars (711) that are far apart from each other are fixedly connected with columnar crossbar connecting plates (712), and the rear sides of the inner sides of the two columnar crossbar connecting plates (712) are fixedly connected to the left and right ends of the bidirectional hydraulic push rod (714).

6. The cyanobacterial bloom retrieval device based on air flotation separation according to claim 4, characterized in that: The bottom of each of the two V-shaped rotating rods (75) is fixedly connected to a retractable plate (76), and the inner side of each of the two retractable plates (76) is fixedly connected to a clamping rod (77). The inner side of each of the two clamping rods (77) extends to the left and right sides of the inner wall of the traction rope guide block (73).

7. The cyanobacterial bloom retrieval device based on air flotation separation according to claim 1, characterized in that: The lifting mechanism (8) includes an inverted U-shaped frame (81), a support block (83) is fixedly connected to the top rear side of the inverted U-shaped frame (81), and rotating rod connecting blocks (82) are fixedly connected to all four sides of the rear side of the inverted U-shaped frame (81). A servo motor connecting plate (84) is fixedly connected to the rear side of the support block (83), and a servo motor (85) is fixedly connected to the rear side of the servo motor connecting plate (84). A rotating shaft is fixedly connected to the output end of the servo motor (85). A rotating rod (86) is fixedly connected to a rotating shaft (87) at its left end. The inner sides of the upper and lower sets of rotating rod connecting blocks (82) are rotatably connected to third turntable rotating rods (89). The left and right sides of the outer walls of the two third turntable rotating rods (89) are fixedly connected to third turntables (810). The left end of the top third turntable rotating rod (89) extends to the outside of the rotating rod connecting block (82) on the top left side and is fixedly connected to a fourth turntable (811). The outer wall of the rotating shaft (87) is fitted with a second track (88). The side of the second track (88) away from the rotating shaft (87) is fitted onto the outer wall of the fourth turntable (811). The outer walls of the left and right sets of third turntables (810) are fitted with third tracks (812). The rear bottom of the two third tracks (812) are fixedly connected to T-shaped lifting plate connecting rods (813). The front side of the T-shaped lifting plate connecting rods (813) is fixedly connected to T-shaped lifting plates (814). The outer wall of the T-shaped lifting plate (814) is slidably connected to the inner side of the inverted U-shaped frame (81). The T-shaped lifting plate (814) is fixedly connected to the left and right sides of the front side of the inverted U-shaped frame (81). The rear sides of the two T-shaped lifting plate guide slides (815) are slidably connected to the left and right sides of the front side of the inverted U-shaped frame (81). The top front side of the T-shaped lifting plate (814) is fixedly connected to the bottom of the air flotation machine (3).

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