Marine litter detecting and intercepting equipment for estuary

Abstract

The invention discloses marine litter detection and interception equipment for an estuary, and belongs to the technical field of litter interception, the marine litter detection and interception equipment comprises a base plate, a driving shaft and a third collection cavity, a drainage groove is formed in the bottom of the base plate, and the marine litter detection and interception equipment further comprises a filtering mechanism and multiple sets of supporting frames arranged at the bottom of the base plate. According to the device, driving blades are driven to rotate through water flow, first sliding blocks are driven to circularly move in annular grooves, multiple sets of filtering blades are driven to integrally do harmonic motion through cooperation of second sliding blocks and rectangular rods, and the dynamic filtering and conveying effects on filtered objects are achieved; a liquid film is formed between the filtering blade and a filtered object, and the adhesion force between the filtering blade and pollutants, especially hydrophobic film plastic, is reduced through the dual effects of jet fluid dynamic lubrication and interfacial tension destruction, so that the adhesion blockage of light film plastic garbage is reduced; meanwhile, auxiliary power can be provided for directional migration of filtered pollutants.

Description

Technical Field

[0001] This invention relates to the field of waste interception technology, and more specifically, to a marine debris detection and interception device for use at sea estuaries. Background Technology

[0002] With the widespread use and improper disposal of plastic products, estuaries have become key channels and disaster areas for the transportation of land-based marine debris. This type of debris has a complex composition, mainly consisting of polymers that are difficult to degrade naturally, such as plastic bottles, plastic bags, and foam products. It often gets entangled and accumulates with organic matter in the water. In particular, film-type plastic waste can easily break down into microplastics, damaging the estuarine ecosystem and marine food chain. It can also be easily ingested by marine animals, causing blockage of the esophagus and respiratory tract, leading to suffocation.

[0003] Currently, the main method for dealing with surface garbage in estuaries is direct treatment using cleaning vessels, while the interception of underwater suspended plastic waste mainly relies on static interception technologies, such as fixed grids and debris nets. However, plastic film waste, due to its large size, easy shaping, and easy adhesion, is not only prone to clogging under static interception and filtration, but also easily becomes entangled and adheres to other types of suspended waste.

[0004] How to invent a marine debris detection and interception device for use at sea estuaries to improve these problems has become an urgent issue for those skilled in the art. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a marine debris detection and interception device for estuaries, aiming to improve the problems mentioned in the background art of the prior art.

[0006] This invention is implemented as follows: This invention provides a marine debris detection and interception device for estuaries, comprising a base plate, a drive shaft, and a collection chamber. A flow channel is installed at the bottom of the base plate. The device also includes: The filtration mechanism includes multiple sets of support frames installed at the bottom of the substrate. Multiple sets of evenly distributed sliders are sleeved inside the support frames. Filter blades are connected to one end of the sliders extending outside the support frames. The multiple sets of filter blades are arranged into a filter plate structure to intercept and filter suspended debris in the water. Rectangular rods are sleeved inside the support frames. A circulation component is installed inside the substrate. The circulation component includes a rotating shaft installed inside the substrate. The rotating shaft is connected to a circulation belt via a pulley. A set of sliders is installed on the outer wall of the circulation belt. An annular groove is opened inside the substrate. The sliders push the rectangular rods downward one by one as the circulation belt rotates. In turn, the cooperation between the sliders and the rectangular rods drives the multiple sets of filter blades to perform harmonic motion to clean up the silt and blockage. The separation mechanism includes a fixed cylinder fixedly installed on the side wall of the diversion channel. A primary rotating cylinder and a secondary rotating cylinder are rotatably connected inside the fixed cylinder. A guide strip 1 is installed on the inner side wall of the primary rotating cylinder, and a guide strip 2 is installed on the inner side wall of the secondary rotating cylinder. A gear ring 1 is provided on the outer side wall of the primary rotating cylinder, and a gear ring 2 is provided on the outer side wall of the secondary rotating cylinder. A sealing cavity is provided on the side wall of the diversion channel. A rotating shaft 2 is sleeved inside the sealing cavity. A gear 1 that drives the gear ring 1 and a gear 2 that drives the gear ring 2 are sleeved on the outer side wall of the rotating shaft 2. An air passage assembly is provided inside the fixed cylinder. The air passage assembly includes an air inlet channel opened inside the fixed cylinder. A movable block is movably sleeved inside the air inlet channel. A sealing block that cooperates with the movable block is provided on the outer side wall of the fixed cylinder. When the primary rotating cylinder rotates, gas is periodically pumped into the primary rotating cylinder through the cooperation between the sealing block and the movable block. The drive mechanism includes a drive shaft disposed between two sets of bases, a drive blade sleeved on the outer side wall of the drive shaft, the drive blade being disposed on the water surface, and a transmission shaft connected to the drive shaft via a bevel gear transmission. The transmission shaft drives the first rotating shaft via a set of pulleys and belts, and the transmission shaft also drives the second rotating shaft via a set of bevel gears.

[0007] Preferably, the substrate is designed to be inclined, and the flow channel is located downstream, with an opening in the center of the flow channel that communicates with the primary rotating drum.

[0008] Preferably, the annular groove is a U-shaped groove, and the slider is in a limiting movable connection with the annular groove. The slider moves in a circular motion inside the annular groove as the circulating belt rotates. A limiting groove matching the rectangular rod is provided at the bottom of the annular groove. A spring for resetting is provided between the bottom of the rectangular rod and the support frame. A chamfer is provided at one end of the rectangular rod extending into the annular groove. When the slider passes through, the chamfer pushes the rectangular rod toward the support frame.

[0009] Preferably, the rectangular rod has a groove inside that mates with the second slider, the top of the groove has a chamfer, and the top of the second slider close to the groove also has a chamfer that mates with the groove.

[0010] Preferably, a spring is provided between the slider two and the support frame, multiple sets of spray holes are opened on the surface of the filter blade, a guide hole is opened inside the slider two to connect the spray holes and the inside of the support frame, and a liquid inlet hole for water absorption is also opened on the side wall of the support frame.

[0011] Preferably, the first gear ring and the second gear ring have the same module and number of teeth parameters, the second gear and the first gear have the same module parameters, the second gear has more teeth than the first gear, the second gear and the second gear ring directly mesh and drive, and a set of transition gears is provided between the first gear and the first gear ring for meshing and driving.

[0012] Preferably, along the rotation direction of the primary rotating drum, the edge of the side where the movable block and the sealing block are close together is provided with a matching chamfer. The area of ​​the primary rotating drum close to the sealing block is provided with an exhaust hole that communicates with the interior of the guide strip. The part of the fixed cylinder close to the movable block is provided with an air inlet hole, and the air inlet hole is connected to an air inlet valve.

[0013] Preferably, the first and second guide strips are designed as involute spirals, and the surface of the first guide strip has multiple sets of air holes connected to the exhaust port.

[0014] Preferably, the bottom of the fixed cylinder is connected to a first collection chamber and a second collection chamber, and the top inlet of the third collection chamber is connected to a collection tube. The collection tube is L-shaped, and the part of the collection tube extending into the secondary rotating cylinder and the inside of the fixed cylinder is straight. The curved part of the collection tube is mesh-shaped.

[0015] Preferably, a ring of fixed blades is provided inside the opening of the drainage channel, an arc-shaped slider is movably sleeved on the inner side of the primary rotating cylinder, a spring is provided between the arc-shaped slider and the primary rotating cylinder, a movable blade is sleeved on the side of the arc-shaped slider facing the axis of the primary rotating cylinder, a spring is provided between the movable blade and the arc-shaped slider, the cutting edge of the movable blade is provided with a chamfer, and the cutting edge of the movable blade is in the same direction of rotation as the primary rotating cylinder, while the cutting edge of the fixed blade is designed to be opposite to the cutting edge of the movable blade.

[0016] In summary, the beneficial effects of this invention are: 1. The water flow drives the blades to rotate, causing slider one to circulate within the annular groove. Slider two, in conjunction with the rectangular rod, drives multiple sets of filter blades to perform harmonic motion. Combined with the inclined design of the substrate, this achieves dynamic filtration and transport of the filtered material. When the filter blades extend, water jets from the spray nozzles, forming a liquid film between the filter blades and the filtered material. Through the dual effects of fluid dynamic lubrication and interfacial tension disruption, the adhesion between the filter blades and pollutants, especially hydrophobic plastic films, is reduced, minimizing the adhesion and clogging of lightweight plastic film waste. Simultaneously, it provides auxiliary power for the directional migration of filtered pollutants, accelerating the directional transport of pollutants by the filter blade group and improving the filtration and collection effect of plastic film waste.

[0017] 2. When separating intercepted waste, the larger volumes of waste are first broken down by fixed and movable blades to reduce later blockages. Then, the primary rotating drum at low speed separates waste with large density differences. During the cyclone separation process, aeration is carried out by guide strip one to increase the density difference between film-like plastic waste and other suspended waste. When entering the secondary rotating drum for further separation, the increased speed of the secondary rotating drum generates greater centrifugal force and separation effect, realizing multi-stage separation of intercepted waste. The less dense aerated film-like waste enters the collection tube through the middle of the secondary rotating drum and is collected. Finally, after losing the cyclone force, it is collected into the collection chamber three, realizing the separation of suspended waste and the efficient capture and collection of film-like waste. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the substrate provided in an embodiment of the present invention.

[0020] Figure 2 This is a top view schematic diagram of the substrate provided in an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the substrate transmission provided in an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the interior of the annular groove provided in an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the slider two provided in the embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the rectangular rod provided in an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of a fixed cylinder transmission provided in an embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the interior of the fixed cylinder provided in an embodiment of the present invention.

[0027] Figure 9 This is a schematic diagram of the primary rotating drum cross-section provided in an embodiment of the present invention.

[0028] Figure 10This is a schematic diagram of the interior of the primary rotating drum provided in an embodiment of the present invention.

[0029] Figure 11 This is a schematic diagram of the distribution of movable blades provided in an embodiment of the present invention.

[0030] Figure 12 This is the present invention. Figure 11 Enlarged diagram of point A.

[0031] Legend: 100, base plate; 101, base; 102, drive shaft; 103, drive blade; 104, flow channel; 200, filter blade; 201, transmission shaft; 202, rotating shaft one; 203, circulating belt; 204, slider one; 205, annular groove; 206, limiting groove; 207, rectangular rod; 208, support frame; 209, slider two; 210, spray hole; 211, guide hole; 212, liquid inlet; 213, groove; 300, fixed cylinder; 301, sealing cavity; 302, rotating shaft two 303. Gear 1; 304. Gear 2; 305. Inlet valve; 306. Primary rotary drum; 307. Secondary rotary drum; 308. Gear ring 1; 309. Gear ring 2; 310. Inlet channel; 312. Guide bar 1; 313. Sealing block; 314. Movable block; 315. Inlet port; 316. Exhaust port; 317. Guide bar 2; 400. Collection tube; 401. Collection chamber 1; 402. Collection chamber 2; 403. Collection chamber 3; 500. Fixed blade; 501. Movable blade; 502. Arc-shaped slider. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 1-12This invention provides a marine debris detection and interception device for estuaries, comprising a base plate 100, a drive shaft 102, and a collection chamber 403. A flow channel 104 is installed at the bottom of the base plate 100. The device also includes a filtration mechanism, comprising multiple sets of support frames 208 disposed at the bottom of the base plate 100. Multiple sets of evenly distributed sliders 209 are sleeved inside the support frames 208. One end of each slider 209 extending outside the support frame 208 is connected to a filter blade 200. The multiple sets of filter blades 200 are arranged to form a filter plate structure to intercept and filter suspended debris in the water. A rectangular rod 207 is sleeved inside the support frames 208. The base plate 100 contains... The circulation assembly includes a rotating shaft 202 disposed inside the substrate 100. The rotating shaft 202 is connected to a circulation belt 203 via a pulley. A set of sliders 204 are disposed on the outer wall of the circulation belt 203. An annular groove 205 is formed inside the substrate 100. The sliders 204 rotate downward with the circulation belt 203, pushing the rectangular rods 207 one by one. In turn, the cooperation between the sliders 209 and the rectangular rods 207 drives multiple sets of filter blades 200 to perform harmonic motion to clean up the accumulated blockages. The separation mechanism includes a fixed cylinder 300 fixedly installed on the side wall of the drainage channel 104. The fixed cylinder 300 is rotatably connected to a primary rotating cylinder 306 and a... The secondary rotating drum 307 has a guide strip 312 installed on the inner wall of the primary rotating drum 306, and a guide strip 317 installed on the inner wall of the secondary rotating drum 307. A gear ring 308 is installed on the outer wall of the primary rotating drum 306, and a gear ring 309 is installed on the outer wall of the secondary rotating drum 307. A sealing cavity 301 is provided on the side wall of the flow channel 104. It should be noted that the sealing cavity 301 is a sealed structure design, sealing and waterproofing all transmission components to reduce corrosion. The bevel gear transmission between the drive shaft 102 and the transmission shaft 201 uses a sealed ball joint design, with a sealed rotating bearing at the connection point. The bevel gear is isolated from the outside through the ball joint, reducing the amount of humid air. To prevent damage to components, a rotating shaft 302 is sleeved inside the sealing cavity 301. A gear 303 that drives a gear ring 308 and a gear 304 that drives a gear ring 309 are sleeved on the outer wall of the rotating shaft 302. An air passage assembly is provided inside the fixed cylinder 300. The air passage assembly includes an air inlet channel 310 opened inside the fixed cylinder 300. A movable block 314 is movably sleeved inside the air inlet channel 310. A sealing block 313 that cooperates with the movable block 314 is provided on the outer wall of the fixed cylinder 300. When the primary rotating cylinder 306 rotates, the gas is periodically pumped into the primary rotating cylinder 306 through the cooperation between the sealing block 313 and the movable block 314.The drive mechanism includes a drive shaft 102 disposed between two sets of bases 101. Drive blades 103 are sleeved on the outer wall of the drive shaft 102 and are positioned on the water surface. The drive shaft 102 is connected to a transmission shaft 201 via bevel gears. The transmission shaft 201 drives a first rotating shaft 202 via a set of pulleys and a belt, and also drives a second rotating shaft 302 via a set of bevel gears.

[0034] It should be noted that during deployment, the substrate 100 is placed inside the estuary and underwater. Since most estuaries are equipped with cleaning personnel who can directly clean up floating garbage visible on the water surface, the substrate 100 is placed underwater to capture suspended garbage. Along the upstream and downstream direction, the filter blades 200 are located upstream, the diversion channel 104 is located downstream, the base 101 is set on both sides of the river channel, and half of the drive blades 103 are above the water, thereby increasing the force of the water flow on the drive blades 103.

[0035] Furthermore, the filter blades 200 are positioned facing the direction of the water flow at the estuary, designed to meet the direction of the water flow. The substrate 100 is designed to be inclined, and the diversion channel 104 is designed to be located downstream. The inclined filter blades 200 can filter and guide suspended debris in the water flow along the direction of the water flow, causing it to move into the diversion channel 104 downstream and be concentrated, separated, and collected. The center of the diversion channel 104 has an opening that communicates with the primary rotating drum 306.

[0036] It should be noted that the annular groove 205 is a U-shaped groove, and the slider 204 is in a limited movable connection with the annular groove 205. The slider 204 rotates with the rotation of the circulating belt 203 and makes a circular motion inside the annular groove 205. The bottom of the annular groove 205 is provided with a limiting groove 206 that matches the rectangular rod 207. A spring for resetting is provided between the bottom of the rectangular rod 207 and the support frame 208. One end of the rectangular rod 207 extending into the annular groove 205 is provided with a chamfer. When the slider 204 passes through, the chamfer pushes the rectangular rod 207 toward the support frame 208.

[0037] Reference Figure 4-6 The rectangular rod 207 has a groove 213 inside that mates with the slider 209. The top of the groove 213 has a chamfer. The top of the slider 209 on the side close to the groove 213 also has a chamfer that mates with the groove 213. When the rectangular rod 207 moves down, the slider 209 is pushed away from the support frame 208 by the chamfer between the groove 213 and the slider 209.

[0038] Furthermore, a spring is provided between the slider 209 and the support frame 208, and multiple sets of spray holes 210 are opened on the surface of the filter blade 200. A guide hole 211 is opened inside the slider 209 to connect the spray hole 210 and the inside of the support frame 208. A liquid inlet hole 212 for absorbing water is also opened on the side wall of the support frame 208.

[0039] It should be noted that gear ring 1 308 and gear ring 2 309 have the same module and number of teeth parameters, gear 2 304 and gear 1 303 have the same module parameters, gear 2 304 has more teeth than gear 1 303, gear 2 304 directly meshes with gear ring 2 309 for transmission, and a set of transition gears is provided between gear 1 303 and gear ring 1 308 for meshing transmission.

[0040] Reference Figure 2-9 Along the rotation direction of the primary rotating drum 306, the edges of the movable block 314 and the sealing block 313 that are close to each other are provided with a matching chamfer. When the primary rotating drum 306 rotates and drives the sealing block 313 past the movable block 314, the movable block 314 can be pushed into the interior of the fixed cylinder 300 so that the sealing block 313 can pass through the movable block 314. The area of ​​the primary rotating drum 306 close to the sealing block 313 is provided with an exhaust hole 316 that communicates with the interior of the guide strip 312. The part of the fixed cylinder 300 close to the movable block 314 is provided with an air inlet 315. The air inlet 315 is connected to an air inlet valve 305. The air inlet valve 305 is extended through a set of extendable hoses and floats on the water surface for air intake.

[0041] It should be noted that the first guide bar 312 and the second guide bar 317 are designed as involute spirals. When the primary rotating drum 306 and the secondary rotating drum 307 rotate, the synchronous rotation of the first guide bar 312 and the second guide bar 317 can drive the water flow to rotate along the primary rotating drum 306 and the secondary rotating drum 307. At the same time, the spiral design can guide the garbage and materials accumulated on the side walls of the primary rotating drum 306 and the secondary rotating drum 307 to move along the first guide bar 312 and the second guide bar 317. The surface of the first guide bar 312 has multiple sets of air holes, which are connected to the exhaust port 316.

[0042] Reference Figure 10The bottom of the fixed cylinder 300 is connected to collection chamber one 401 and collection chamber two 402, which are respectively located at the downstream ends of the primary rotating cylinder 306 and the secondary rotating cylinder 307. The top inlet of collection chamber three 403 is connected to a collection pipe 400, which is L-shaped. The part of collection pipe 400 extending into the secondary rotating cylinder 307 and the fixed cylinder 300 is straight, which can reduce interference and impact on the rotating water flow, allowing waste such as films with low central density to enter the collection pipe 400 smoothly for recycling under centrifugal action. The curved part of collection pipe 400 is mesh-shaped, capturing waste and impurities while discharging water. It should be noted that collection chamber one 401, collection chamber two 402, and collection chamber three 403 can all be constructed using a grid, which can collect waste without affecting the water flow, thus ensuring the smooth flow of waste recycling.

[0043] Reference Figure 11-12 Inside the opening of the drainage channel 104, a ring of fixed blades 500 is provided. An arc-shaped slider 502 is movably sleeved on the inner side of the primary rotating drum 306. A spring is provided between the arc-shaped slider 502 and the primary rotating drum 306. A movable blade 501 is sleeved on the side of the arc-shaped slider 502 facing the axis of the primary rotating drum 306. A spring is provided between the movable blade 501 and the arc-shaped slider 502. The cutting edge of the movable blade 501 is chamfered, and the cutting edge of the movable blade 501 rotates in the same direction as the primary rotating drum 306. The cutting edge of the fixed blade 500 is designed in the opposite direction to the cutting edge of the movable blade 501. It should be noted that small debris is difficult to cover both the fixed blade 500 and the movable blade 501 at the same time, so it will not be subjected to cutting force. However, when cutting through harder debris, the movable blade 501 and the arc-shaped slider 502 have a certain retraction and buffering function due to their elastic design, which can avoid hard contact damage to the blades.

[0044] The workflow of this marine debris detection and interception device used at sea estuaries is as follows: When water flows through, the drive blades 103, whose lower half is submerged in the water, drive the drive shaft 102 to rotate. The rotation of the drive shaft 102 drives the transmission shaft 201 to rotate via a bevel gear, which in turn drives the rotating shaft 202 to rotate via a belt drive. Simultaneously, the rotating shaft 202 is driven to rotate via a bevel gear drive. The rotation of the rotating shaft 202 drives the circulating belt 203 to rotate, which in turn drives the slider 204 to move counterclockwise in the annular groove 205. When the annular groove 205 passes the rectangular rod 207, the slider 204 is limited and movable within the annular groove 205, so the slider can only slide along the annular groove 205. Since it cannot move up or down, when passing by, the chamfered top of the rectangular rod 207 pushes the rectangular rod 207 towards the inside of the support frame 208. During the downward movement of the rectangular rod 207, the chamfered top of the groove 213 and the chamfered top of the slider 209 cooperate to push the slider 209 away from the support frame 208. At the same time, the liquid between the slider 209 and the support frame 208 can be sprayed out from the surface of the filter blade 200 through the guide hole 211 and the spray hole 210. After the slider 204 passes, the annular groove 205 returns to its original position under the elastic force of the spring between it and the support frame 208. Rectangular rod 207, slider 209, and filter blades 200 reset synchronously. During the reset process, slider 209 also draws external water into the gap between support frame 208 and slider 209 through the one-way valve inside the liquid inlet 212, facilitating subsequent circulation and water spraying. As slider 1 204 moves counter-clockwise within the annular groove 205, it sequentially pushes each group of filter blades 200 from upstream to downstream, causing the filter blades 200 to extend and retract sequentially along the water flow direction. This creates a propagating harmonic excitation on the filter cross-section, breaking the boundaries of traditional static filtration through harmonic motion. The layer effect keeps the retained material in a controlled micro-disturbance state, reducing the problem of continuous clogging and adsorption of filter debris. At the same time, as the filter blades 200 extend, water is sprayed out through the spray holes 210. By forming a liquid film between the filter blades 200 and the filtered material, the adhesion between the filter blades 200 and pollutants, especially hydrophobic thin film plastics, is reduced through the dual effects of jet fluid dynamic lubrication and interfacial tension disruption. This reduces the adhesion and clogging of lightweight thin film plastic waste and can also provide auxiliary power for the directional migration of filtered pollutants, accelerating the directional transport of filtered pollutants by the filter blade group 200.

[0045] Furthermore, as the filtered waste gathers and enters the primary rotating drum 306 through the inlet of the diversion channel 104, the drive of the second rotating shaft 302 drives the first gear 303 and the second gear 304 to rotate synchronously. Since the number of teeth of the second gear 304 is greater than the number of teeth of the first gear 303, the rotation speed of the primary rotating drum 306, which rotates coaxially through the second rotating shaft 302, is lower than the rotation speed of the secondary rotating drum 307. During the rotation of the primary rotating drum 306, through the relative rotation of the movable blade 501 and the fixed blade 500, when suspended waste with a large diffusion volume, such as plastic film and rope, passes by, it is easy to come into contact with both the movable blade 501 and the fixed blade 500 at the same time due to its large volume. Through the relative rotation of the fixed blade 500 and the movable blade 501, the waste can be cut, torn and crushed, reducing the subsequent blockage of plastic bags and plastic films.

[0046] Furthermore, when the crushed waste enters the primary rotating drum 306, the rotation of the primary rotating drum 306, through the rotation of the guide bar 312, causes the water inside the primary rotating drum 306 to rotate along the axis of the primary rotating drum 306. Through swirling treatment, under the action of centrifugal force, the denser waste experiences a greater centrifugal force and adheres close to the inner wall of the primary rotating drum 306. When it subsequently passes through the collection chamber 401, it can enter the collection chamber 401 through the inlet and be collected. While the primary rotating drum 306 rotates, the exhaust port 316 rotates synchronously with the primary rotating drum 306, compressing and squeezing the gas between the sealing block 313 and the movable block 314 inside the air intake channel 310, causing it to be discharged through the exhaust port 316 and further through the guide bar 312. When the sealing block 313 passes through the movable block 314, the mutual squeezing between the beveled angles of the two blocks creates a powerful effect. The movable block 314 is pressed into the fixed cylinder 300 to allow the sealing block 313 to pass smoothly. After the sealing block 313 passes the movable block 314, the movable block 314 resets and pops out. At the same time, the pressure between the sealing block 313 and the movable block 314 decreases. External gas is drawn in through the air inlet valve 305 and the one-way valve inside the air inlet 315, thereby realizing the cycle of subsequent squeezing pump operation. When the gas is discharged through the guide strip 312, a layer of gas film is formed on the surface of the guide strip 312, which effectively prevents the film waste from adhering to the surface of the drive guide strip 312. At the same time, when the microbubbles sprayed by the guide strip 312 adhere to the surface of the film plastic waste, they significantly reduce its overall apparent density. This greatly increases the buoyancy of the plastic bags, which were originally close to neutral suspension. In the rotating flow field, they will detach from the main fluid more quickly and gather towards the rotation axis, i.e., the low-pressure area, thereby separating them from other waste or water flow, which facilitates the interception and separation of waste.

[0047] It's important to note that film-type plastics, such as polyethylene and polypropylene, are non-polar in molecular structure. They have a very weak affinity for highly polar water molecules, meaning water cannot wet and spread on their surfaces, resulting in a large contact angle. Furthermore, when plastic and air bubbles encounter each other in water, water molecules tend to cluster and combine with other water molecules, pushing the hydrophobic plastic surface, air bubbles, and water bubbles towards each other. The air bubbles spontaneously and stably adhere to the hydrophobic plastic surface, replacing the water molecules that were originally there – a more energy-efficient process. This process is called hydrophobic adsorption. Moreover, film-type plastics have a large specific surface area and flexible deformability, providing a platform for air bubble adhesion. Therefore, air injection can accelerate and enhance the capture effect of film-type plastic waste.

[0048] At the same time, by introducing air, the dissolved oxygen content in the estuary can be increased, water quality can be improved, the water body can be promoted to self-purify, and the hypoxia zone in the estuary area due to the accumulation of organic matter can be prevented.

[0049] After primary cyclone separation in the primary rotating drum 306, high-density waste is directly separated, and waste with small density differences is aerated to increase the density difference between film-type plastic waste and other suspended waste. When the waste from the primary rotating drum 306 enters the secondary rotating drum 307, the increased rotation speed of the secondary rotating drum 307, through the guide strip 317, generates greater centrifugal force and separation effect. The denser waste passes through the end of the secondary rotating drum 307... The suspended solids can be collected into the second collection chamber 402, while the smaller aerated film debris can enter the collection tube 400 through the middle of the secondary rotating drum 307 and be collected. Finally, after losing the swirling force, they are collected into the third collection chamber 403, realizing the separation and treatment of suspended solids and the efficient capture and collection of film debris. By separating and recycling the intercepted debris according to different densities, it is convenient to detect the type and quantity of the recycled debris in the future. This allows for the identification of pollution channels and subsequent treatment of water areas and the environment based on the interception and capture of suspended solids.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A marine debris detection and interception device for estuaries, comprising a base plate (100), a drive shaft (102), and a collection chamber (403), wherein a drainage channel (104) is installed at the bottom of the base plate (100), characterized in that, Also includes: The filtration mechanism includes multiple sets of support frames (208) disposed at the bottom of the substrate (100). Multiple sets of evenly distributed sliders (209) are sleeved inside the support frames (208). One end of each slider (209) extending outside the support frame (208) is connected to a filter blade (200). The multiple sets of filter blades (200) are arranged to form a filter plate structure to intercept and filter suspended debris in the water. A rectangular rod (207) is sleeved inside the support frames (208). A circulation component is disposed inside the substrate (100). The circulation component includes... The filter includes a rotating shaft (202) disposed inside the substrate (100), the rotating shaft (202) being connected to a circulating belt (203) via a pulley drive, a set of sliders (204) being disposed on the outer side wall of the circulating belt (203), and an annular groove (205) being opened inside the substrate (100). The sliders (204) rotate with the circulating belt (203) and push the rectangular rods (207) downward one by one. Then, through the cooperation of the sliders (209) and the rectangular rods (207), the filter blades (200) are driven to perform harmonic motion to clean up the accumulated blockages. The separation mechanism includes a fixed cylinder (300) fixedly installed on the side wall of the diversion channel (104). A primary rotating cylinder (306) and a secondary rotating cylinder (307) are rotatably connected inside the fixed cylinder (300). A guide strip (312) is installed on the inner side wall of the primary rotating cylinder (306), and a guide strip (317) is installed on the inner side wall of the secondary rotating cylinder (307). A gear ring (308) is provided on the outer side wall of the primary rotating cylinder (306), and a gear ring (309) is provided on the outer side wall of the secondary rotating cylinder (307). A sealing cavity (301) is provided on the side wall of the diversion channel (104), and a rotating shaft (302) is sleeved inside the sealing cavity (301). The outer wall of shaft 2 (302) is fitted with gear 1 (303) that drives gear 1 (308) and gear 2 (304) that drives gear 2 (309). The fixed cylinder (300) is provided with an air passage assembly. The air passage assembly includes an air inlet channel (310) opened inside the fixed cylinder (300). The air inlet channel (310) is movably fitted with a movable block (314). The outer wall of the fixed cylinder (300) is provided with a sealing block (313) that cooperates with the movable block (314). When the primary rotating cylinder (306) rotates, the gas is periodically pumped into the primary rotating cylinder (306) through the cooperation between the sealing block (313) and the movable block (314). The drive mechanism includes a drive shaft (102) disposed between two sets of bases (101). A drive blade (103) is sleeved on the outer side wall of the drive shaft (102). The drive blade (103) is disposed on the water surface. The drive shaft (102) is connected to a transmission shaft (201) via a bevel gear. The transmission shaft (201) is driven by a set of pulleys and a belt-driven shaft one (202). The transmission shaft (201) is also driven by a set of bevel gears and a shaft two (302).

2. The marine debris detection and interception device for estuaries according to claim 1, characterized in that, The substrate (100) is designed to be inclined, and the drainage channel (104) is located downstream. The center of the drainage channel (104) has an opening that communicates with the primary rotating cylinder (306).

3. A marine debris detection and interception device for estuaries according to claim 1, characterized in that, The annular groove (205) is a U-shaped groove, and the slider (204) is in a limited movable connection with the annular groove (205). The slider (204) rotates with the circulation belt (203) and makes a circular motion inside the annular groove (205). The bottom of the annular groove (205) is provided with a limiting groove (206) that matches the rectangular rod (207). A spring for resetting is provided between the bottom of the rectangular rod (207) and the support frame (208). One end of the rectangular rod (207) extending into the annular groove (205) is provided with a chamfer. When the slider (204) passes through, the chamfer pushes the rectangular rod (207) toward the support frame (208).

4. A marine debris detection and interception device for estuaries according to claim 1, characterized in that, The rectangular rod (207) has a groove (213) inside that matches the slider (209). The top of the groove (213) is provided with a chamfer. The top of the slider (209) on the side close to the groove (213) is also provided with a chamfer that matches the groove (213).

5. A marine debris detection and interception device for estuaries according to claim 1, characterized in that, A spring is provided between the second slider (209) and the support frame (208). Multiple sets of spray holes (210) are opened on the surface of the filter blade (200). A guide hole (211) is opened inside the second slider (209) to connect the spray hole (210) and the inside of the support frame (208). A liquid inlet hole (212) for absorbing water is also opened on the side wall of the support frame (208).

6. A marine debris detection and interception device for estuaries according to claim 1, characterized in that, The first gear ring (308) and the second gear ring (309) have the same module and number of teeth. The second gear (304) and the first gear (303) have the same module. The second gear (304) has more teeth than the first gear (303). The second gear (304) directly meshes with the second gear ring (309) for transmission. A set of transition gears is provided between the first gear (303) and the first gear ring (308) for meshing transmission.

7. A marine debris detection and interception device for estuaries according to claim 1, characterized in that, Along the rotation direction of the primary rotating drum (306), the edge of the movable block (314) and the sealing block (313) that are close to each other is provided with a matching chamfer. The area of ​​the primary rotating drum (306) close to the sealing block (313) is provided with an exhaust hole (316) that communicates with the interior of the guide strip (312). The part of the fixed cylinder (300) close to the movable block (314) is provided with an air inlet (315). The air inlet (315) is connected to an air inlet valve (305).

8. A marine debris detection and interception device for estuaries according to claim 1, characterized in that, The first guide bar (312) and the second guide bar (317) are designed as an involute spiral. The surface of the first guide bar (312) has multiple sets of air holes, which are connected to the exhaust hole (316).

9. A marine debris detection and interception device for estuaries according to claim 1, characterized in that, The bottom of the fixed cylinder (300) is connected to a first collection chamber (401) and a second collection chamber (402). The top inlet of the third collection chamber (403) is connected to a collection tube (400). The collection tube (400) is L-shaped. The part of the collection tube (400) extending into the secondary rotating cylinder (307) and the fixed cylinder (300) is straight. The curved part of the collection tube (400) is mesh-like.

10. A marine debris detection and interception device for estuaries according to claim 1, characterized in that, The opening of the drainage groove (104) is provided with a ring of fixed blades (500). The inner side of the primary rotating cylinder (306) is movably sleeved with an arc-shaped slider (502). A spring is provided between the arc-shaped slider (502) and the primary rotating cylinder (306). A movable blade (501) is sleeved on the side of the arc-shaped slider (502) facing the axis of the primary rotating cylinder (306). A spring is provided between the movable blade (501) and the arc-shaped slider (502). The cutting edge of the movable blade (501) is provided with a chamfer, and the cutting edge of the movable blade (501) is in the same direction of rotation as the primary rotating cylinder (306). The cutting edge of the fixed blade (500) is designed to be opposite to the cutting edge of the movable blade (501).

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