Mariculture tail water filtering treatment device and use method thereof

Abstract

The invention discloses a mariculture tail water filtering treatment device and a using method thereof, and relates to the technical field of aquaculture tail water treatment.The mariculture tail water filtering treatment device comprises a supporting frame, and a tail water treatment assembly is arranged in the supporting frame; when the device is used, a hydraulic rod is started, a moving plate is pushed to move upwards, an adjusting gear is meshed with a middle annular gear, then a forward and reverse motor is started, a rotating rod and the adjusting gear are driven to rotate, then the middle annular gear and a second filter screen are driven to rotate, and the second filter screen and a first filter screen are staggered in position; then a hydraulic rod pulls a moving plate to move downwards, so that an adjusting gear is meshed with a lower annular gear, the output end of a forward and reverse motor rotates reversely, the adjusting gear is driven to rotate reversely, the lower annular gear and a third filter screen are driven to rotate reversely, the third filter screen and a second filter screen are staggered in position, and a complex filter layer is formed; multi-angle interception is achieved, and the filtering effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture wastewater treatment, and specifically to a seawater aquaculture wastewater filtration and treatment device and its usage method. Background Technique

[0002] Seawater aquaculture wastewater refers to the water body containing various pollutants such as residual bait, feces, biological secretions, and chemical agent residues after the metabolic activities of aquaculture organisms, bait feeding, and flushing of aquaculture facilities during the process of seawater aquaculture. The treated aquaculture wastewater can be reused, for example, for irrigation or as a non - drinking water source. Seawater aquaculture wastewater contains a large amount of solid impurities. Through filtration treatment, suspended solids, unconsumed feed, and other solid impurities in the water can be effectively separated, reducing water pollution and not affecting the normal operation of subsequent treatment processes.

[0003] In the prior art, when seawater aquaculture wastewater is subjected to filtration and separation treatment, a filter screen is usually set up to filter and separate solid impurities. The filter screen can intercept most of the impurities flowing in the vertical direction, but under complex flow conditions, the impurities will flow obliquely or rotationally along with the water flow, resulting in some impurities in the water not being effectively intercepted by the filter screen, leading to poor filtration treatment of the wastewater and affecting the subsequent wastewater treatment efficiency.

[0004] Therefore, we propose a seawater aquaculture wastewater filtration and treatment device and its usage method to solve the problems raised in the above - mentioned background technique. Summary of the Invention

[0005] The purpose of the present invention is to provide a seawater aquaculture wastewater filtration and treatment device and its usage method to solve the problem that when seawater aquaculture wastewater is subjected to filtration and separation treatment, the filter screen can intercept most of the impurities flowing in the vertical direction, but under complex flow conditions, the impurities will flow obliquely or rotationally along with the water flow, resulting in some impurities not being effectively intercepted by the filter screen, leading to poor filtration treatment of the wastewater and affecting the subsequent wastewater treatment efficiency.

[0006] To achieve the above - mentioned purpose, the present invention provides the following technical solution: A seawater aquaculture wastewater filtration and treatment device includes a support frame. A wastewater treatment component is arranged inside the support frame. The wastewater treatment component is used for re - filtering the filtered wastewater. A filtering component is arranged inside the wastewater treatment component. An adjustment and locking component is arranged on the outer surface of the wastewater treatment component. The filtering component is used for filtering the wastewater; the adjustment and locking component is used for adjusting the filtering component;

[0007] The wastewater treatment component includes a treatment tank, and a rotation hole is opened at a position near the top of the outer surface of the treatment tank;

[0008] The filtering component includes an annular plate. A first filter screen is arranged inside the annular plate. A second filter screen is arranged at the bottom of the first filter screen. A third filter screen is arranged at the bottom of the second filter screen. Annular gears are fixedly installed on the outer surfaces of the first filter screen, the second filter screen, and the third filter screen. A sealing sleeve is fixedly connected to the top of the first filter screen. A threaded fixing ring is threadedly embedded inside the annular plate. The bottom of the threaded fixing ring is in contact with the top of the sealing sleeve. Sealing rings are fixedly connected to both the top and the bottom of the second filter screen.

[0009] Preferably, the top of one of the sealing rings is in contact with the bottom of the first filter screen, and the bottom of the other sealing ring is in contact with the top of the third filter screen. A sealing pad is fixedly connected to the bottom of the third filter screen. An annular bottom plate is fixedly installed near the bottom inside the annular plate. The bottom of the sealing pad is in contact with the top of the annular bottom plate. A sealing groove is formed on the outer surface of the annular plate.

[0010] Preferably, two sealing strips are fixedly connected inside the sealing groove. The outer surfaces of both sealing strips are in contact with the inner wall of the processing box. An activity hole is formed on the inner wall of the sealing groove. The annular plate is installed inside the processing box near the top through bolts. All three annular gears are located inside the annular plate.

[0011] Preferably, the adjustment and locking component includes a fixing plate. A hydraulic rod is fixedly installed on the bottom surface inside the fixing plate. A moving plate is fixedly installed at the top of the hydraulic rod. A positive and negative motor is fixedly installed on the top of the moving plate. A rotating rod is fixedly installed at the output end of the positive and negative motor. An adjustment gear is fixedly installed at the top of the rotating rod.

[0012] Preferably, a T-shaped rod is fixedly installed at the top of the adjustment gear. A limiting gear is arranged at the top of the adjustment gear. A telescopic rod is fixedly installed at the top of the limiting gear. A T-shaped groove is formed at the bottom of the limiting gear.

[0013] Preferably, the top end of the T-shaped rod is movably embedded inside the T-shaped groove. The top end of the telescopic rod is fixedly installed on the top surface inside the fixing plate. A positioning gear is movably sleeved on the outer surface of the rotating rod. Three connecting rods are fixedly installed at the bottom of the positioning gear. The bottom ends of all three connecting rods are fixedly installed on the top of the moving plate.

[0014] Preferably, the fixed plate is installed on the outer surface of the processing box near the rotation hole through bolts. A PLC controller is arranged on one outer surface of the fixed plate. Two first sliding grooves are formed on one side inside the fixed plate. Two second sliding grooves are formed on the outer surface of the processing box near the rotation hole. Two sliding rods are fixedly installed inside the moving plate. One ends of the two sliding rods are respectively movably embedded inside the two first sliding grooves, and the other ends of the two sliding rods are respectively movably embedded inside the two second sliding grooves.

[0015] Preferably, the outer surfaces of the adjusting gear, the limiting gear, and the positioning gear are all movably embedded inside the rotation hole and the moving hole. The outer surface of the adjusting gear meshes with the outer surface of the middle annular gear near the bottom and the outer surface of the lower annular gear near the top. The outer surface of the limiting gear meshes with the outer surface of the middle annular gear near the top and the outer surface of the upper annular gear near the bottom.

[0016] Preferably, a box cover is installed on the top of the processing box through bolts. A water inlet pipe is fixedly connected to the top of the box cover. A drain pipe is fixedly connected to the bottom of the processing box. The outer surface of the processing box is fixedly installed inside the support frame. A sand filter layer is installed inside the processing box through bolts. A fiber filter layer is installed inside the processing box through bolts. The sand filter layer is arranged in a funnel shape, and modified quartz sand is arranged inside the sand filter layer. The fiber filter layer is arranged in an arc shape, and fiber balls are arranged inside the fiber filter layer.

[0017] A usage method of a seawater aquaculture tail water filtration and treatment device includes the following steps:

[0018] S1. Start the hydraulic rod to push the moving plate upward, so that the limiting gear is separated from the middle annular gear, the adjusting gear is separated from the lower annular gear, and the positioning gear meshes with the lower annular gear. Then start the positive and negative motor to drive the rotating rod and the adjusting gear to rotate, and then drive the middle annular gear and the second filter screen to rotate, so that the second filter screen and the first filter screen are staggered in position;

[0019] S2. Then the hydraulic rod pulls the moving plate downward, so that the limiting gear meshes with the upper and middle annular gears, the adjusting gear meshes with the lower annular gear, and the positioning gear is separated from the lower annular gear;

[0020] S3. Then the output end of the positive and negative motor rotates in the reverse direction to drive the adjusting gear to rotate in the reverse direction, drive the lower annular gear and the third filter screen to rotate in the reverse direction, so that the third filter screen and the second filter screen are staggered in position;

[0021] S4. The hydraulic rod is started again to push the moving plate upward to reset, so that the limiting gear, the adjusting gear, and the positioning gear move upward to reset to limit the three annular gears;

[0022] S5. Drain the tail water into the treatment tank through the water inlet pipe, filter it through the inclined and staggered filter layers, then successively pass through the hopper-shaped sand filter layer filled with modified quartz sand and the fiber ball and arc-shaped fiber filter layer, intercept and adsorb the suspended solids again, and finally discharge it through the drain pipe.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. In the present invention, during use, start the hydraulic rod to push the moving plate upward, so that the adjusting gear meshes with the middle ring gear. Then start the forward and reverse motor to drive the rotating rod and the adjusting gear to rotate, and then drive the middle ring gear and the second filter screen to rotate, so that the second filter screen and the first filter screen are staggered in position. Then the hydraulic rod pulls the moving plate downward, so that the adjusting gear meshes with the lower ring gear. Then the output end of the forward and reverse motor rotates in the reverse direction, driving the adjusting gear to rotate in the reverse direction, driving the lower ring gear and the third filter screen to rotate in the reverse direction, so that the third filter screen and the second filter screen are staggered in position; under the cooperation of the filtering component and the adjusting and locking component, the effect of adjusting the angles of the second filter screen and the third filter screen is achieved, so that the first filter screen, the second filter screen and the third filter screen are staggered in position, forming a complex filter layer to intercept the impurities flowing in the vertical and oblique directions. The multi-angle interception method can improve the interception efficiency of impurities and improve the filtering effect.

[0025] 2. In the present invention, during use, in the initial state, the limit gear and the adjusting gear limit the first filter screen, the second filter screen and the third filter screen. When the second filter screen rotates, the limit gear and the positioning gear limit the first filter screen and the third filter screen. When the third filter screen rotates, the first filter screen and the second filter screen are limited. After the limit gear, the adjusting gear and the positioning gear move upward and reset, they limit the first filter screen and the second filter screen and the third filter screen after adjusting the angle, preventing the first filter screen, the second filter screen and the third filter screen from rotating under the impact of water flow during the subsequent tail water treatment process and affecting the filtering effect.

[0026] 3. In the present invention, during use, drain the tail water into the treatment tank through the water inlet pipe, filter it through the inclined and staggered filter layers, then successively pass through the sand filter layer and the fiber filter layer, and finally discharge it through the drain pipe. The sand filter layer is filled with modified quartz sand to intercept and adsorb the suspended solids in the water and can also adsorb some organic and inorganic pollutants; the surface area of the hopper-shaped sand filter layer is increased, and the tail water can contact the sand grains more fully. The fiber filter layer is filled with fiber balls, which can adsorb and intercept tiny suspended solids. The arc-shaped fiber filter layer can guide the tail water to flow along a natural curve, reducing the water flow disorder and dead water area. Description of the Drawings

[0027] Figure 1Front perspective view of a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0028] Figure 2 Structural sectional expanded perspective view of the tail water treatment component in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0029] Figure 3 Structural sectional expanded schematic view of the filtration component in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0030] Figure 4 Structural expanded schematic view of the first filter screen in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0031] Figure 5 Structural sectional expanded schematic view of the annular plate in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0032] Figure 6 Structural sectional expanded schematic view of the second filter screen in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0033] Figure 7 Structural expanded schematic view of the adjustment and locking component in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0034] Figure 8 Structural sectional expanded schematic view of the limit gear in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0035] Figure 9 Structural schematic view of the adjustment gear in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0036] Figure 10 Structural schematic view of the positioning gear in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0037] Figure 11 Another perspective view of the second filter screen in a tail water filtration and treatment device for seawater aquaculture according to the present invention;

[0038] Figure 12 Another perspective view of the third filter screen in a tail water filtration and treatment device for seawater aquaculture according to the present invention.

[0039] In the figure:

[0040] 1. Support frame; 2. Tail water treatment component; 201. Treatment tank; 202. Tank cover; 203. Water inlet pipe; 204. Drain pipe; 205. Sand filter layer; 206. Fiber filter layer; 207. Rotation hole; 208. Second chute; 3. Filter component; 301. Annular plate; 302. First filter screen; 303. Second filter screen; 304. Third filter screen; 305. Annular gear; 306. Sealing sleeve; 307. Threaded fixing ring; 308. Sealing ring; 309. Sealing gasket; 310. Annular bottom plate; 311. Sealing groove; 312. Sealing strip; 313. Moving hole; 4. Adjusting and locking component; 401. Fixed plate; 402. Hydraulic rod; 403. Moving plate; 404. Reversible motor; 405. Rotating rod; 406. Adjusting gear; 407. T-shaped rod; 408. Limiting gear; 409. Telescopic rod; 410. T-shaped groove; 411. Positioning gear; 412. Connecting rod; 413. Slide bar; 414. First chute; 5. PLC controller. Detailed implementation manners

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Embodiment 1: Please refer to Figures 1 - 12As shown in the figure, the present invention provides a technical solution: a seawater aquaculture tail water filtration and treatment device, including a support frame 1. Inside the support frame 1, a tail water treatment component 2 is arranged. The tail water treatment component 2 is used for re-filtering the filtered tail water. Inside the tail water treatment component 2, a filtration component 3 is arranged. The filtration component 3 is used for filtering the tail water; the adjustment and locking component 4 is arranged on the outer surface of the tail water treatment component 2. The adjustment and locking component 4 is used for adjusting the filtration component 3; the tail water treatment component 2 includes a treatment tank 201. A rotation hole 207 is opened at the top of the outer surface of the treatment tank 201; the filtration component 3 includes an annular plate 301. Inside the annular plate 301, a first filter screen 302 is arranged. At the bottom of the first filter screen 302, a second filter screen 303 is arranged. At the bottom of the second filter screen 303, a third filter screen 304 is arranged. Annular gears 305 are fixedly installed on the outer surfaces of the first filter screen 302, the second filter screen 303, and the third filter screen 304. A sealing sleeve 306 is fixedly connected to the top of the first filter screen 302. A threaded fixing ring 307 is threadedly embedded inside the annular plate 301. The bottom of the threaded fixing ring 307 is in contact with the top of the sealing sleeve 306. Sealing rings 308 are fixedly connected to the top and bottom of the second filter screen 303. The top of one sealing ring 308 is in contact with the bottom of the first filter screen 302. The bottom of the other sealing ring 308 is in contact with the top of the third filter screen 304. A sealing gasket 309 is fixedly connected to the bottom of the third filter screen 304. An annular bottom plate 310 is fixedly installed at the bottom inside the annular plate 301. The bottom of the sealing gasket 309 is in contact with the top of the annular bottom plate 310. A sealing groove 311 is opened on the outer surface of the annular plate 301. Two sealing strips 312 are fixedly connected inside the sealing groove 311. The outer surfaces of the two sealing strips 312 are in contact with the inner wall of the treatment tank 201. An activity hole 313 is opened on the inner wall of the sealing groove 311. The annular plate 301 is installed inside the treatment tank 201 near the top through bolts. The three annular gears 305 are all located inside the annular plate 301. The adjustment and locking component 4 includes a fixing plate 401. A hydraulic rod 402 is fixedly installed on the bottom surface inside the fixing plate 401. The top of the hydraulic rod 402 is fixedly installed with a moving plate 403. A positive and negative motor 404 is fixedly installed on the top of the moving plate 403. The output end of the positive and negative motor 404 is fixedly installed with a rotating rod 405. The top of the rotating rod 405 is fixedly installed with an adjustment gear 406. The top of the adjustment gear 406 is fixedly installed with a T-shaped rod 407. A limiting gear 408 is arranged on the top of the adjustment gear 406. The top of the limiting gear 408 is fixedly installed with a telescopic rod 409. A T-shaped groove 410 is opened at the bottom of the limiting gear 408. The top of the T-shaped rod 407 is movably embedded inside the T-shaped groove 410. The top of the telescopic rod 409 is fixedly installed on the top surface inside the fixing plate 401. A positioning gear 411 is movably sleeved on the outer surface of the rotating rod 405. The bottom of the positioning gear 411 is fixedly installed with three connecting rods 412,The bottom ends of the three connecting rods 412 are fixedly installed on the top of the moving plate 403. The fixing plate 401 is installed on the outer surface of the processing box 201 near the rotation hole 207 through bolts. A PLC controller 5 is arranged on one outer surface of the fixing plate 401. Two first sliding grooves 414 are opened on one side inside the fixing plate 401. Two second sliding grooves 208 are opened on the outer surface of the processing box 201 near the rotation hole 207. Two sliding rods 413 are fixedly installed inside the moving plate 403. One ends of the two sliding rods 413 are respectively movably embedded inside the two first sliding grooves 414, and the other ends of the two sliding rods 413 are respectively movably embedded inside the two second sliding grooves 208. The outer surfaces of the adjusting gear 406, the limiting gear 408 and the positioning gear 411 are all movably embedded inside the rotation hole 207 and the moving hole 313. The outer surface of the adjusting gear 406 meshes with the outer surface of the middle annular gear 305 near the bottom and the outer surface of the lower annular gear 305 near the top. The outer surface of the limiting gear 408 meshes with the outer surface of the middle annular gear 305 near the top and the outer surface of the upper annular gear 305 near the bottom.,

[0043] In this embodiment, during use, the hydraulic rod 402, the forward and reverse motor 404 and the PLC controller 5 are electrically connected. The threaded fixing ring 307 cooperates with the annular bottom plate 310 to limit the first filter screen 302, the second filter screen 303 and the third filter screen 304 between the annular plates 301. The annular plates 301 and the processing box 201 are sealed through a sealing strip 312. The first filter screen 302 and the threaded fixing ring 307 are sealed through a sealing sleeve 306. The first filter screen 302, the second filter screen 303 and the third filter screen 304 are sealed through a sealing ring 308. The third filter screen 304 and the annular bottom plate 310 are sealed through a sealing gasket 309. Start the hydraulic rod 402 to push the moving plate 403 to move upward, driving the forward and reverse motor 404, the rotating rod 405, the adjusting gear 406, the limiting gear 408 and the positioning gear 411 to move upward together. When the hydraulic rod 402 automatically pauses, the limiting gear 408 moves from the outer surface of the middle annular gear 305 to the upper annular gear 305 and separates from the middle annular gear 305. The adjusting gear 406 moves from the outer surface of the lower annular gear 305 to the middle annular gear 305 and separates from the lower annular gear 305. At the same time, the positioning gear 411 moves upward to the lower annular gear 305 and meshes with the lower annular gear 305, as Figure 9As shown, then start the forward and reverse motor 404. The rotation of the output end of the forward and reverse motor 404 drives the rotating rod 405 and the adjusting gear 406 to rotate, and at the same time drives the T-shaped rod 407 to rotate inside the T-shaped groove 410. The rotation of the adjusting gear 406 drives the middle annular gear 305 to rotate, further driving the second filter screen 303 to rotate. When the second filter screen 303 rotates 50 degrees, the forward and reverse motor 404 automatically pauses for a period of time, thereby adjusting the angle of the second filter screen 303 so that the position of the second filter screen 303 is staggered from that of the first filter screen 302, as Figure 11 shown. Then the hydraulic rod 402 resumes operation. At this time, the hydraulic rod 402 will pull the moving plate 403 downward and drive the limit gear 408, the adjusting gear 406 and the positioning gear 411 downward. When the hydraulic rod 402 automatically pauses again, the limit gear 408 meshes with the upper annular gear 305 and the middle annular gear 305, the adjusting gear 406 meshes with the lower annular gear 305, and the positioning gear 411 moves to below the lower annular gear 305, as Figure 10 shown. Then the forward and reverse motor 404 resumes operation. At this time, the output end of the forward and reverse motor 404 rotates in the reverse direction, driving the rotating rod 405 and the adjusting gear 406 to rotate in the reverse direction, further driving the lower annular gear 305 to rotate in the reverse direction, thereby driving the third filter screen 304 to rotate in the reverse direction so that the position of the third filter screen 304 is staggered from that of the second filter screen 303. At this time, the first filter screen 302, the second filter screen 303 and the third filter screen 304 are as Figure 12As shown in the figure, when the third filter screen 304 rotates reversely by 110 degrees, the forward and reverse motor 404 automatically shuts down. Then, the hydraulic rod 402 pushes the moving plate 403 upward to reset again, causing the limit gear 408, the adjusting gear 406, and the positioning gear 411 to move upward and reset. With the cooperation of the filtering assembly 3 and the adjusting and locking assembly 4, the angles of the second filter screen 303 and the third filter screen 304 can be adjusted, so that the positions of the first filter screen 302, the second filter screen 303, and the third filter screen 304 are staggered to form a complex filtering layer. During subsequent tail water filtration, the first filter screen 302 can intercept most of the impurities flowing in the vertical direction, and the obliquely staggered second filter screen 303 and third filter screen 304 can intercept the obliquely flowing impurities. This multi-angle interception method can greatly improve the interception efficiency of impurities, reduce the probability of impurities passing through the filter screen, and thus improve the filtering effect. By adjusting the angles of the second filter screen 303 and the third filter screen 304, the water flow direction and the distribution of impurities can also be changed, dispersing the pressure in the blocked area, thereby extending the cleaning cycle of the filter screen, reducing the damage caused by frequent cleaning to the filter screen, and extending its service life. The multi-level and adjustable filtering design can select a suitable filtering method according to the actual water quality changes, improving the overall treatment efficiency. It solves the problem that when filtering and separating seawater aquaculture tail water, the filter screen can intercept most of the impurities flowing in the vertical direction, but under complex flow conditions, the impurities will flow obliquely or rotationally along the water flow, resulting in some impurities not being effectively intercepted by the filter screen, resulting in poor tail water filtration treatment and affecting the subsequent tail water treatment efficiency.

[0044] Embodiment 2: As Figures 2 - 8As shown in the figure, the adjustment locking assembly 4 includes a fixing plate 401. A hydraulic rod 402 is fixedly installed on the bottom surface inside the fixing plate 401. The top end of the hydraulic rod 402 is fixedly installed with a moving plate 403. A positive and negative motor 404 is fixedly installed on the top of the moving plate 403. The output end of the positive and negative motor 404 is fixedly installed with a rotating rod 405. The top of the rotating rod 405 is fixedly installed with an adjustment gear 406. The top of the adjustment gear 406 is fixedly installed with a T-shaped rod 407. A limit gear 408 is arranged on the top of the adjustment gear 406. The top of the limit gear 408 is fixedly installed with a telescopic rod 409. A T-shaped groove 410 is opened at the bottom of the limit gear 408. The top end of the T-shaped rod 407 is movably embedded in the inside of the T-shaped groove 410. The top end of the telescopic rod 409 is fixedly installed on the top surface inside the fixing plate 401. A positioning gear 411 is movably sleeved on the outer surface of the rotating rod 405. Three connecting rods 412 are fixedly installed at the bottom of the positioning gear 411. The bottom ends of the three connecting rods 412 are all fixedly installed on the top of the moving plate 403. The fixing plate 401 is installed on the outer surface of the processing box 201 near the rotating hole 207 through bolts. A PLC controller 5 is arranged on one side outer surface of the fixing plate 401. Two first sliding grooves 414 are opened on one side inside the fixing plate 401. Two second sliding grooves 208 are opened on the outer surface of the processing box 201 near the rotating hole 207. Two sliding rods 413 are fixedly installed inside the moving plate 403. One ends of the two sliding rods 413 are respectively movably embedded in the inside of the two first sliding grooves 414. The other ends of the two sliding rods 413 are respectively movably embedded in the inside of the two second sliding grooves 208. The outer surfaces of the adjustment gear 406, the limit gear 408 and the positioning gear 411 are all movably embedded in the inside of the rotating hole 207 and the moving hole 313. The outer surface of the adjustment gear 406 meshes with the outer surface near the bottom of the middle annular gear 305 and the outer surface near the top of the lower annular gear 305. The outer surface of the limit gear 408 meshes with the outer surface near the top of the middle annular gear 305 and the outer surface near the bottom of the upper annular gear 305.

[0045] In this embodiment, when in use, as Figure 5As shown, in the initial state, the limit gear 408 meshes with the lower half of the annular gear 305 on the outer surface of the first filter screen 302 and also meshes with the upper half of the annular gear 305 on the outer surface of the second filter screen 303. The adjusting gear 406 meshes with the lower half of the annular gear 305 on the outer surface of the second filter screen 303 and also meshes with the upper half of the annular gear 305 on the outer surface of the third filter screen 304, thereby limiting the three annular gears 305, keeping the first filter screen 302, the second filter screen 303, and the third filter screen 304 in a horizontally overlapping state, without affecting the subsequent angle adjustment of the second filter screen 303 and the third filter screen 304. When the hydraulic rod 402 pushes the limit gear 408, the adjusting gear 406, and the positioning gear 411 upward, and the forward and reverse motor 404 drives the adjusting gear 406 to drive the middle annular gear 305 and the second filter screen 303 to rotate, the limit gear 408 meshes with the upper annular gear 305, and the positioning gear 411 meshes with the lower annular gear 305, as Figure 9 shown, thereby limiting the first filter screen 302 and the third filter screen 304, preventing the first filter screen 302 and the third filter screen 304 from rotating and shifting when the second filter screen 303 rotates, affecting the final position distribution among the three and thus affecting the filtering effect. When the hydraulic rod 402 pulls the limit gear 408, the adjusting gear 406, and the positioning gear 411 downward, as Figure 10 shown, the limit gear 408 meshes with the upper and middle annular gears 305, thereby limiting the first filter screen 302 and the second filter screen 303, preventing the first filter screen 302 and the rotated second filter screen 303 from rotating and shifting. When the hydraulic rod 402 pushes the moving plate 403 upward again to reset, causing the limit gear 408, the adjusting gear 406, and the positioning gear 411 to move upward and reset, the three annular gears 305 can be limited, thereby limiting the first filter screen 302, the second filter screen 303 with adjusted angle, and the third filter screen 304, preventing the first filter screen 302, the second filter screen 303, and the third filter screen 304 from rotating under the impact of water flow during the subsequent tail water treatment process, affecting the filtering effect.

[0046] Embodiment 3: As Figures 1 - 3As shown in the figure, the tail water treatment component 2 includes a treatment tank 201. A rotation hole 207 is provided near the top of the outer surface of the treatment tank 201. The top of the treatment tank 201 is bolted with a tank cover 202. A water inlet pipe 203 is fixedly connected to the top of the tank cover 202. The bottom of the treatment tank 201 is fixedly connected with a drain pipe 204. The outer surface of the treatment tank 201 is fixedly installed inside the support frame 1. A sand filter layer 205 is bolted inside the treatment tank 201. A fiber filter layer 206 is bolted inside the treatment tank 201. The sand filter layer 205 is arranged in a funnel shape, and modified quartz sand is arranged inside the sand filter layer 205. The fiber filter layer 206 is arranged in an arc shape, and fiber balls are arranged inside the fiber filter layer 206.

[0047] In this embodiment, during use, after a complex filter layer is formed by the filter component 3 and the adjustment and locking component 4, the tail water is discharged into the treatment tank 201 through the water inlet pipe 203, and is filtered through the inclined and staggered filter layer, and then passes through the sand filter layer 205 and the fiber filter layer 206 in sequence, and finally is discharged through the drain pipe 204 to enter the next treatment step. Modified quartz sand is filled in the sand filter layer 205. This kind of sand grains has better adsorption performance and anti-blocking ability, and can optimize the thickness and particle size distribution of the sand filter layer 205 to improve the filtration efficiency. When the tail water passes through the sand filter layer 205, the modified quartz sand in the sand layer will intercept and adsorb the suspended substances in the water. At the same time, some organic and inorganic pollutants can also be adsorbed on the surface of the sand grains to further purify the water quality. The funnel shape increases the surface area of the sand filter layer 205, enabling the tail water to come into contact with the sand grains more fully, increasing the area and time of sand filtration, and being beneficial to better adsorbing and intercepting the suspended particles in the water. Fiber balls are filled in the fiber filter layer 206, which has high strength and better adsorption performance. The tail water treated by the sand filter layer 205 enters the fiber filter layer 206. The high porosity and large specific surface area of the fiber balls enable them to adsorb and intercept tiny suspended substances. During this process, the remaining tiny impurities in the water are adsorbed and intercepted by the fiber balls, and the water quality of the tail water after being filtered by the fiber balls is clearer. The arc-shaped fiber filter layer 206 can guide the tail water to flow along a natural curve, conforming to the principle of fluid mechanics, reducing the water flow disorder and dead zones. It is beneficial to ensure that the tail water is fully filtered in the fiber filter layer 206 and make the filtered water quality more stable.

[0048] The usage method and working principle of the present invention are as follows: Start the hydraulic rod 402 to push the moving plate 403 upward, driving the forward and reverse motor 404, the rotating rod 405, the adjusting gear 406, the limiting gear 408, and the positioning gear 411 to move upward together. When the hydraulic rod 402 automatically pauses, the limiting gear 408 separates from the middle annular gear 305, and the adjusting gear 406 separates from the lower annular gear 305. At the same time, the positioning gear 411 meshes with the lower annular gear 305. Start the forward and reverse motor 404 to drive the rotating rod 405 and the adjusting gear 406 to rotate, and at the same time drive the T-shaped rod 407 to rotate inside the T-shaped groove 410. The rotation of the adjusting gear 406 drives the middle annular gear 305 to rotate, further driving the second filter screen 303 to rotate. When the second filter screen 303 rotates 50 degrees, the forward and reverse motor 404 automatically pauses for a period of time, thereby adjusting the angle of the second filter screen 303 so that the second filter screen 303 and the first filter screen 302 are staggered in position, as Figure 11 shown. Then the hydraulic rod 402 resumes operation. At this time, the hydraulic rod 402 will pull the moving plate 403 downward, driving the limiting gear 408, the adjusting gear 406, and the positioning gear 411 downward. When the hydraulic rod 402 automatically pauses again, the limiting gear 408 meshes with the upper annular gear 305 and the middle annular gear 305, the adjusting gear 406 meshes with the lower annular gear 305, and the positioning gear 411 moves below the lower annular gear 305, as Figure 10 shown. Then the forward and reverse motor 404 resumes operation. At this time, the output end of the forward and reverse motor 404 rotates in the reverse direction, driving the rotating rod 405 and the adjusting gear 406 to rotate in the reverse direction, further driving the lower annular gear 305 to rotate in the reverse direction, thereby driving the third filter screen 304 to rotate in the reverse direction so that the third filter screen 304 and the second filter screen 303 are staggered in position. At this time, the first filter screen 302, the second filter screen 303, and the third filter screen 304 are as Figure 12As shown, when the third filter screen 304 rotates reversely by 110 degrees, the forward and reverse motor 404 automatically shuts down. Then, the hydraulic rod 402 pushes the moving plate 403 upward to reset, causing the limit gear 408, the adjusting gear 406, and the positioning gear 411 to move upward and reset. With the cooperation of the filter assembly 3 and the adjustment and locking assembly 4, the angles of the second filter screen 303 and the third filter screen 304 are adjusted, making the positions of the first filter screen 302, the second filter screen 303, and the third filter screen 304 staggered to form a complex filter layer. During subsequent tail water filtration, the first filter screen 302 can intercept most of the impurities flowing vertically, and the obliquely staggered second filter screen 303 and third filter screen 304 can intercept the obliquely flowing impurities. This multi-angle interception method can greatly improve the impurity interception efficiency, reduce the probability of impurities passing through the filter screen, and thus improve the filtration effect. When the forward and reverse motor 404 drives the adjusting gear 406 to drive the intermediate annular gear 305 and the second filter screen 303 to rotate, the limit gear 408 meshes with the upper annular gear 305, and the positioning gear 411 meshes with the lower annular gear 305, thereby limiting the first filter screen 302 and the third filter screen 304 to prevent the first filter screen 302 and the third filter screen 304 from rotating and shifting when the second filter screen 303 rotates. When the hydraulic rod 402 pulls the limit gear 408, the adjusting gear 406, and the positioning gear 411 downward, the limit gear 408 meshes with the upper and intermediate annular gears 305, thereby limiting the first filter screen 302 and the second filter screen 303 to prevent the first filter screen 302 and the rotated second filter screen 303 from rotating and shifting. When the hydraulic rod 402 pushes the moving plate 403 upward to reset again, causing the limit gear 408, the adjusting gear 406, and the positioning gear 411 to move upward and reset, the three annular gears 305 can be limited, thereby limiting the first filter screen 302 and the second filter screen 303 and the third filter screen 304 after the angle adjustment to prevent the first filter screen 302, the second filter screen 303, and the third filter screen 304 from rotating under the impact of water flow during subsequent tail water treatment, affecting the filtration effect. The tail water is discharged into the treatment tank 201 through the water inlet pipe 203, filtered through the obliquely staggered filter layer, then passes through the sand filter layer 205 and the fiber filter layer 206 in sequence, and finally is discharged through the drain pipe 204 for the next treatment. The sand filter layer 205 is filled with modified quartz sand. When the tail water passes through the sand filter layer 205, the modified quartz sand in the sand layer will intercept and adsorb the suspended solids in the water. At the same time, the surface of the sand grains can also adsorb some organic and inorganic pollutants. The funnel-shaped shape increases the surface area of the sand filter layer 205, enabling the tail water to come into contact with the sand grains more fully. The fiber filter layer 206 is filled with fiber balls, and the remaining tiny impurities in the water are adsorbed and intercepted by the fiber balls. The arc-shaped fiber filter layer 206 can guide the tail water to flow along a natural curve, reducing water flow turbulence and dead zones.

[0049] Among them, the hydraulic rod 402, the forward and reverse motor 404, and the PLC controller 5 are all prior arts, and their components and operating principles are all publicly known technologies, so no further explanation will be given here.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A marine aquaculture tail water filtering and treatment device, comprising a support frame (1), wherein a tail water treatment component (2) is arranged inside the support frame (1), and the tail water treatment component (2) is used for re-filtering the filtered tail water, characterized in that: A filter assembly (3) is arranged inside the tail water treatment assembly (2), and an adjustment locking assembly (4) is arranged on the outer surface of the tail water treatment assembly (2); the filter assembly (3) is used to filter the tail water; and the adjustment locking assembly (4) is used to adjust the filter assembly (3); The tailwater treatment assembly (2) comprises a treatment box (201), and a rotation hole (207) is provided on the outer surface of the treatment box (201) near the top; The filter assembly (3) comprises an annular plate (301), a first filter screen (302) is arranged inside the annular plate (301), a second filter screen (303) is arranged at the bottom of the first filter screen (302), a third filter screen (304) is arranged at the bottom of the second filter screen (303), an annular gear (305) is fixedly mounted on the outer surfaces of the first filter screen (302), the second filter screen (303) and the third filter screen (304), a sealing sleeve (306) is fixedly connected to the top of the first filter screen (302), a threaded fixing ring (307) is embedded in the internal thread of the annular plate (301), the bottom of the threaded fixing ring (307) is in contact with the top of the sealing sleeve (306), and a sealing ring (308) is fixedly connected to the top and bottom of the second filter screen (303).

2. The marine aquaculture tail water filtering and treatment device according to claim 1, characterized in that: The top of one of the sealing rings (308) fits with the bottom of the first filter screen (302), and the bottom of the other sealing ring (308) fits with the top of the third filter screen (304). The bottom of the third filter screen (304) is fixedly connected with a sealing gasket (309). An annular bottom plate (310) is fixedly installed inside the annular plate (301) near the bottom. The bottom of the sealing gasket (309) fits with the top of the annular bottom plate (310). A sealing groove (311) is provided on the outer surface of the annular plate (301).

3. The marine aquaculture tail water filtering and treatment device according to claim 2, characterized in that: Two sealing strips (312) are fixedly connected to the inside of the sealing groove (311), and the outer surfaces of the two sealing strips (312) are in contact with the inner wall of the processing box (201). The inner wall of the sealing groove (311) is provided with a movable hole (313). The annular plate (301) is installed inside the processing box (201) near the top by bolts, and the three annular gears (305) are all located inside the annular plate (301).

4. The marine aquaculture tail water filtering and treatment device according to claim 3, characterized in that: The adjustment locking assembly (4) comprises a fixed plate (401), a hydraulic rod (402) is fixedly mounted on the bottom surface of the fixed plate (401), a moving plate (403) is fixedly mounted on the top of the hydraulic rod (402), a forward and reverse motor (404) is fixedly mounted on the top of the moving plate (403), a rotating rod (405) is fixedly mounted on the output end of the forward and reverse motor (404), and an adjustment gear (406) is fixedly mounted on the top of the rotating rod (405).

5. The marine aquaculture tail water filtering and treatment device according to claim 4, characterized in that: A T-shaped rod (407) is fixedly mounted on the top of the adjusting gear (406), a limiting gear (408) is arranged on the top of the adjusting gear (406), a telescopic rod (409) is fixedly mounted on the top of the limiting gear (408), and a T-shaped slot (410) is provided on the bottom of the limiting gear (408).

6. The marine aquaculture tail water filtering and treatment device according to claim 5, characterized in that: The top end of the T-shaped rod (407) is movably embedded in the T-shaped slot (410), the top end of the telescopic rod (409) is fixedly mounted on the top surface inside the fixed plate (401), the outer surface of the rotating rod (405) is movably sleeved with a positioning gear (411), and three connecting rods (412) are fixedly mounted at the bottom of the positioning gear (411), and the bottom ends of the three connecting rods (412) are all fixedly mounted on the top of the movable plate (403).

7. The marine aquaculture tail water filtering and treatment device according to claim 6, characterized in that: The fixed plate (401) is installed on the outer surface of the processing box (201) near the rotating hole (207) by bolts, and a PLC controller (5) is arranged on the outer surface of one side of the fixed plate (401). Two first slide grooves (414) are provided on one side inside the fixed plate (401), and two second slide grooves (208) are provided on the outer surface of the processing box (201) near the rotating hole (207). Two sliding rods (413) are fixedly installed inside the movable plate (403), and one end of the two sliding rods (413) are movably embedded in the two first slide grooves (414), and the other end of the two sliding rods (413) are movably embedded in the two second slide grooves (208).

8. The marine aquaculture tail water filtering and treatment device according to claim 7, characterized in that: The outer surfaces of the adjusting gear (406), the limiting gear (408) and the positioning gear (411) are all movably embedded in the rotating hole (207) and the movable hole (313); the outer surface of the adjusting gear (406) is meshed with the outer surface of the middle ring gear (305) near the bottom and the outer surface of the lower ring gear (305) near the top; the outer surface of the limiting gear (408) is meshed with the outer surface of the middle ring gear (305) near the top and the outer surface of the upper ring gear (305) near the bottom.

9. The marine aquaculture tail water filtering and treatment device according to claim 8, characterized in that: The top of the treatment box (201) is installed with a box cover (202) by means of bolts, the top of the box cover (202) is fixedly connected with a water inlet pipe (203), the bottom of the treatment box (201) is fixedly connected with a drain pipe (204), the outer surface of the treatment box (201) is fixedly installed inside the support frame (1), the inside of the treatment box (201) is installed with a sand filter layer (205) by means of bolts, the inside of the treatment box (201) is installed with a fiber filter layer (206) by means of bolts, the sand filter layer (205) is arranged in a bucket shape, modified quartz sand is arranged inside the sand filter layer (205), the fiber filter layer (206) is arranged in an arc shape, and fiber balls are arranged inside the fiber filter layer (206).

10. A method for using a marine aquaculture tail water filtration treatment device, characterized in that: The marine aquaculture tail water filtration treatment device according to claim 9 is used, comprising the following steps: S1, start the hydraulic rod (402) to push the movable plate (403) upward, so that the limit gear (408) is separated from the middle ring gear (305), the adjustment gear (406) is separated from the lower ring gear (305), and the positioning gear (411) is meshed with the lower ring gear (305), and then start the forward and reverse motor (404) to drive the rotating rod (405) and the adjustment gear (406) to rotate, and then drive the middle ring gear (305) and the second filter (303) to rotate, so that the second filter (303) and the first filter (302) are staggered in position; S2, the hydraulic rod (402) then pulls the movable plate (403) downward, so that the limiting gear (408) meshes with the upper and middle ring gears (305), the adjusting gear (406) meshes with the lower ring gear (305), and the positioning gear (411) separates from the lower ring gear (305); S3, the output end of the forward and reverse motor (404) rotates in the reverse direction, driving the adjusting gear (406) to rotate in the reverse direction, driving the lower ring gear (305) and the third filter screen (304) to rotate in the reverse direction, so that the third filter screen (304) and the second filter screen (303) are staggered in position; S4, the hydraulic rod (402) is started again, pushing the movable plate (403) to move upward and reset, so that the limit gear (408), the adjustment gear (406) and the positioning gear (411) move upward and reset, limiting the three ring gears (305); S5. The tail water is discharged into the treatment box (201) through the water inlet pipe (203), filtered through the inclined and staggered filter layers, and then passes through the bucket sand filter layer (205) filled with modified quartz sand and the filter layer (206) filled with fiber balls and arc-shaped fibers in sequence to intercept and adsorb suspended matter again, and finally discharged through the drain pipe (204).

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