Circulating treatment system for pond culture water and tail water

Abstract

The invention provides a pond culture water and tail water circulation treatment system, and belongs to the technical field of tail water treatment.The pond culture water and tail water circulation treatment system comprises a treatment space, a pond, a water pumping pipe and a water return pipe and further comprises a multi-stage filtering assembly and a vibration cleaning assembly; the heights of the coarse filtering layer, the middle filtering layer and the fine filtering layer are arranged in a step-by-step decreasing gradient mode, the design of a flow guide pipe is combined, water flow can naturally and orderly pass through all the filtering layers, the filtering efficiency is improved, and the water quality is effectively improved through a multi-stage filtering system in cooperation with the biological purification effect; the backwashing system can be used for carrying out deep cleaning on each filtering layer regularly; the vibration cleaning assembly drives all parts to work cooperatively through a motor, sundries in a collecting tank are automatically cleaned, vibration cleaning is conducted on an arc-shaped filter plate, meanwhile, through mutual cooperation of a bent plate, a magnetic plate, a ball and other parts, the inner wall of a back-flushing blow-off pipe is continuously and effectively cleaned, blockage caused by long-time accumulation of impurities is avoided, and the service life of the back-flushing blow-off pipe is prolonged. And normal drainage of the backwashing blow-off pipe is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of tail water treatment, and in particular to a circulation treatment system for pond aquaculture water and tail water. Background Art

[0002] In the traditional pond farming process, the leftover bait and the excrement of fish and shrimp are deposited in the farming pond. After being soaked in the farming water, they decompose and deteriorate, endangering the growth and survival of the farmed fish and shrimp. In order to alleviate the vicious cycle of aquaculture water quality, a water treatment system is needed to purify it.

[0003] A Chinese patent with publication number CN214990968U discloses a tailwater treatment system for a pond, including an arc screen filter module, a gravel filter module, a fine sand filter module, and a ceramsite module, so that the maximum diameter of the pollutant particles in the tailwater is gradually reduced. The ceramsite module includes ceramsite and composite microorganisms, and the composite microorganisms are attached to the ceramsite to achieve purification of the pond tailwater.

[0004] In actual use, due to the presence of a large amount of solid impurities in the extracted aquaculture water, the sludge, particulate matter and other impurities filtered out in this technical solution cannot be discharged quickly. After long-term use, it is easy to cause clogging on the surface of the filter module, reducing the filtration and purification efficiency of the pond aquaculture water and tail water; even if some similar systems have reserved a backwash system in consideration of possible blockages, after long-term operation, impurities are easily accumulated on the inner wall of the backwash drainage pipe. This is because during the backwash process, when the impurities that have been washed away are discharged through the backwash drainage pipe, some impurities may adhere to the inner wall of the pipe due to changes in water flow velocity, pipe wall adsorption and other reasons. These attached impurities will also reduce the inner diameter of the backwash drainage pipe, affecting the normal discharge of the flushing wastewater, and may even greatly reduce the backwash effect, making it impossible to thoroughly clean the filter module, further affecting the long-term stable operation and filtration and purification efficiency of the entire system.

[0005] How to invent a circulation treatment system for pond aquaculture water and tail water to solve these problems has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0006] In order to make up for the above shortcomings, the present invention provides a circulation treatment system for pond aquaculture water and tail water, aiming to solve the problems mentioned in the above background.

[0007] The present invention is achieved in that:

[0008] The present invention provides a circulation treatment system for pond aquaculture water and tail water, comprising a treatment space, a pond, a water pumping pipe and a water return pipe, wherein a filter screen is installed at the inlet of the water pumping pipe to prevent larger solid debris from entering the water pumping pipe, a first water pump is installed on the water pumping pipe, a second water pump is installed on the water return pipe, and further comprising:

[0009] Multi-stage filter assembly: The multi-stage filter assembly is arranged inside the processing space, and is used to absorb and filter the aquaculture tail water in the pond, and circulate it back into the pond after purification;

[0010] Curved filter plate: The curved filter plate is arranged above the filter layer in the coarse filtration area, and is used to further filter the tail water drawn in by the suction pipe;

[0011] Backwashing system and multiple backwashing drainage pipes: the backwashing system is laid in the processing space and located at the bottom. The multiple backwashing drainage pipes are respectively connected to the coarse filtration area, the medium filtration area, and the fine filtration area. Valves are installed on the backwashing drainage pipes. The backwashing system is used to flush the filter layer of the multi-stage filtration system, and the flushing wastewater is discharged from the backwashing drainage pipes;

[0012] Vibration cleaning component: The vibration cleaning component is arranged in the processing space, and is used to clean the inner wall of the backwash drain pipe in the coarse filtration area and the medium filtration area and the impurities on the arc filter plate.

[0013] Preferably, the multi-stage filtration assembly includes a coarse filtration area, a medium filtration area and a fine filtration area which are arranged in sequence in the treatment space along the water flow direction; one end of the pumping pipe is connected to the bottom of the pond, and the other end is connected to the top of the coarse filtration area; one end of the return pipe is connected to the fine filtration area, and the other end is connected to the top of the pond.

[0014] Preferably, a coarse filter layer is laid in the coarse filter area, a medium filter layer is laid in the medium filter area, and a fine filter layer is laid in the fine filter area. The coarse filter area is connected to the bottom of the medium filter area. A guide pipe is provided on the side wall of the medium filter area, one end of the guide pipe is located above the medium filter layer and the other end extends to the inside of the fine filter layer. A filter disc is installed at the end of the guide pipe.

[0015] Preferably, the heights of the coarse filtration layer, the medium filtration layer and the fine filtration layer are arranged in a gradually decreasing gradient, and the backwash system is laid on the bottom of the coarse filtration layer, the medium filtration layer and the fine filtration layer respectively. A backwash water inlet and a backwash air inlet are provided at the end of the backwash system located outside the processing space, and the backwash water inlet is connected to an external backwash water pump, and the backwash air inlet is connected to an external compressed air pump.

[0016] Preferably, the coarse filter layer is formed by stacking fine crushed stones, the medium filter layer is formed by stacking fine sand, the fine filter layer is formed by stacking ceramsite with a specific pore structure, and microbial flora with specific functions are added to the fine filter layer.

[0017] Preferably, mounting holes are provided on both sides of the arc filter plate, mounting bolts are installed in the mounting holes, slots are reserved on the side walls of the coarse filtration area for the mounting bolts to pass through, and the mounting bolts fix the arc filter plate inside the coarse filtration area through the slots, and a collecting groove for collecting debris on the arc filter plate is provided at the bottom of the arc filter plate, filter holes are provided on the bottom wall of the collecting groove, and a debris discharge port is provided through the side wall of the coarse filtration area corresponding to the collecting groove, and the aperture of the filter screen is larger than the aperture of the arc filter plate.

[0018] Preferably, the vibration cleaning assembly includes a motor, a transmission shaft, a lever, a guide rod, a wheel and an elastic rope, the motor is fixedly connected to the outer wall of the coarse filtration area, the transmission shaft is fixedly connected to the output end of the motor, the transmission shaft is rotationally connected to the side wall of the coarse filtration area, a reciprocating thread is provided on the transmission shaft located inside the coarse filtration area, a nut is threadedly connected to the reciprocating thread section, and a cleaning block is fixedly connected to the lower side of the nut.

[0019] Preferably, the cleaning block abuts against the side wall of the collecting trough, a brush is provided on the lower side wall of the cleaning block, an end of the brush abuts against the bottom wall of the collecting trough, and the cleaning block is provided in coordination with the debris discharge port.

[0020] Preferably, the lever is fixedly arranged on the transmission shaft located outside the coarse filtration area, and the side wall of the coarse filtration area is provided with an arc-shaped groove for the guide rod to slide. A rubber sleeve is fixedly connected to the guide rod located inside the coarse filtration area. When the lever is rotated, it can push the guide rod to slide in the arc-shaped groove. When the guide rod slides to the top of the arc-shaped groove, the guide rod abuts against the end of the lever, and the side wall of the rubber sleeve abuts against the lower side wall of the arc-shaped filter plate.

[0021] Preferably, the wheel disc is fixedly arranged on the backwash drain pipe in the coarse filtration area and the medium filtration area, and the inner side wall of the wheel disc is fixedly connected with multiple groups of bending plates, the upper end of the bending plate is fixedly connected with a magnetic plate, and the lower end of the bending plate is fixedly connected with a sphere, and the multiple groups of bending plates are equidistantly distributed in a ring along the edge of the wheel disc, and the end of the magnetic plate is fixedly connected to the side wall of the elastic rope. The bending plate is elastically arranged, and a magnetic zone is arranged at the end of the lever away from the transmission shaft, and the opposite surfaces of the magnetic zone and the magnetic plate are magnetically arranged with different polarities, and the sphere in the initial state is against the inner bottom wall of the wheel disc.

[0022] The beneficial effects of the present invention are:

[0023] The heights of the coarse filter layer, medium filter layer and fine filter layer are set in a gradually decreasing gradient, and combined with the guide pipe design, the water can flow through each filter layer naturally and orderly, optimizing the filtration process and improving the filtration efficiency; the multi-stage filtration system composed of filter screens, arc filter plates, coarse filter layers, medium filter layers and fine filter layers with added microbial flora, combined with biological purification, can significantly improve water quality and create a good living environment for farmed organisms; the backwash system can regularly perform deep cleaning of each filter layer to remove impurities attached to the filter material, maintain good filtration performance of the filter layer, avoid premature failure of the filter material due to impurity accumulation, and effectively extend the service life of the entire filtration system.

[0024] The vibration cleaning component drives the various components to work together through a motor, automatically and efficiently cleaning the debris in the collection tank and vibrating the arc filter plate to reduce the need for manual intervention and reduce the cost and difficulty of manual cleaning. At the same time, through the cooperation of components such as bending plates, magnetic plates, spheres and elastic ropes, the inner wall of the backwash sewage pipe is continuously and effectively cleaned to avoid blockage caused by long-term accumulation of impurities, ensure the normal drainage of the backwash sewage pipe, maintain the stable operation of each filtration link, and ensure that the entire circulation treatment system can work reliably for a long time, continuously creating a good water quality environment for pond farming. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of a circulation treatment system for pond aquaculture water and tail water provided by the present invention;

[0027] Figure 2 It is a front structural schematic diagram of a circulation treatment system for pond aquaculture water and tail water provided by the present invention;

[0028] Figure 3 It is a rear view structural schematic diagram of a circulation treatment system for pond aquaculture water and tail water provided by the present invention;

[0029] Figure 4 It is a schematic diagram of the cross-sectional structure of a processing space of a circulation treatment system for pond aquaculture water and tail water provided by the present invention;

[0030] Figure 5 This is a schematic diagram of the distribution structure of filter layers in each zone of a circulation treatment system for pond aquaculture water and tail water provided by the present invention;

[0031] Figure 6 It is a partial structural schematic diagram of a circulation treatment system for pond aquaculture water and tail water provided by the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of an arc filter plate, a transmission shaft, a lever, a guide rod and a wheel disc of a circulation treatment system for pond aquaculture water and tail water provided by the present invention;

[0033] Figure 8 The present invention provides a schematic diagram of the cross-sectional structure of a wheel disc of a circulation treatment system for pond aquaculture water and tail water.

[0034] In the figure: 1, treatment space; 2, pond; 3, backwash system; 4, first water pump; 5, motor; 6, impurity outlet; 7, lever; 8, curved filter plate; 9, wheel; 11, coarse filtration area; 12, medium filtration area; 13, fine filtration area; 31, backwash water inlet; 32, backwash air inlet; 33, backwash sewage pipe; 41, water pump; 42, second water pump; 43, return pipe; 51 , transmission shaft; 52, nut; 70, magnetic area; 71, guide rod; 72, arc groove; 73, rubber sleeve; 81, collecting groove; 82, mounting hole; 91, bending plate; 92, sphere; 93, magnetic plate; 94, elastic rope; 111, coarse filter layer; 121, medium filter layer; 122, guide tube; 131, fine filter layer; 331, valve; 521, cleaning block; 821, mounting bolt. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1, refer to Figure 1-Figure 5 A circulation treatment system for pond aquaculture water and tail water comprises a treatment space 1, a pond 2, a pumping pipe 41 and a return pipe 43. A filter is installed at the inlet of the pumping pipe 41 to prevent larger solid debris from entering the pumping pipe 41, such as branches, large pieces of leftover bait and larger sludge lumps. A first water pump 4 is installed on the pumping pipe 41, and a second water pump 42 is installed on the return pipe 43. The system also comprises:

[0037] Multi-stage filtration component: The multi-stage filtration component is arranged inside the processing space 1, and is used to absorb and filter the aquaculture tail water in the pond 2, and circulate it back into the pond 2 after purification;

[0038] Curved filter plate 8: The curved filter plate 8 is arranged above the filter layer in the coarse filtration area 11, and is used to further filter the tail water drawn in by the suction pipe 41;

[0039] Backwashing system 3 and multiple backwashing drainage pipes 33: The backwashing system 3 is laid in the processing space 1 and is located at the bottom. Multiple backwashing drainage pipes 33 are respectively connected to the coarse filtration area 11, the medium filtration area 12, and the fine filtration area 13. A valve 331 is installed on the backwashing drainage pipe 33 to facilitate the control of the discharge of the flushing wastewater, ensuring that the wastewater generated by the backwashing can be discharged from the system in time to avoid affecting the normal filtration and system operation. The backwashing system 3 is used to flush the filter layer of the multi-stage filtration system, and the flushing wastewater is discharged from the backwashing drainage pipe 33;

[0040] Vibration cleaning component: The vibration cleaning component is arranged on the processing space 1, and is used to clean the inner wall of the backwash drain pipe 33 in the coarse filtration area 11 and the medium filtration area 12 and the impurities on the arc filter plate 8.

[0041] Furthermore, the multi-stage filtration component includes a coarse filtration area 11, a medium filtration area 12 and a fine filtration area 13, which are arranged in sequence in the treatment space 1 along the water flow direction. One end of the pumping pipe 41 is connected to the bottom of the pond 2, and the other end is connected to the top of the coarse filtration area 11. One end of the return pipe 43 is connected to the fine filtration area 13, and the other end is connected to the top of the pond 2. The first water pump 4 provides power to extract tail water to ensure that the water flow can smoothly enter the multi-stage filtration component. The return pipe 43 relies on the second water pump 42 to send the purified water back to the pond 2 to complete the water recycling.

[0042] A coarse filter layer 111 is laid in the coarse filter area 11, a medium filter layer 121 is laid in the medium filter area 12, and a fine filter layer 131 is laid in the fine filter area 13. The coarse filter area 11 is connected to the bottom of the medium filter area 12, and a guide pipe 122 is arranged on the side wall of the medium filter area 12. One end of the guide pipe 122 is located above the medium filter layer 121, and the other end extends to the inside of the fine filter layer 131. A filter disc is installed at the end of the guide pipe 122 to prevent particles in the medium filter layer 121 and the fine filter layer 131 from entering the inside of the guide pipe 122.

[0043] The heights of the coarse filter layer 111, the medium filter layer 121, and the fine filter layer 131 are arranged in a step-by-step decreasing gradient. Combined with the bottom connection between the coarse filter area 11 and the medium filter area 12 and the arrangement of the guide pipe 122, the water flow can be made to pass through in sequence (refer to Figure 5), the backwashing system 3 is laid at the bottom of the coarse filter layer 111, the medium filter layer 121 and the fine filter layer 131 respectively, and a backwashing water inlet 31 and a backwashing air inlet 32 ​​are arranged at the end of the backwashing system 3 outside the processing space 1. The backwashing water inlet 31 is connected to an external backwashing water pump, and water flow can be introduced to flush the filter layer. The backwashing air inlet 32 ​​is connected to an external compressed air pump, and gas can be introduced to assist flushing to enhance the flushing effect.

[0044] It should be noted that the coarse filter layer 111 is made of fine gravel, which can preliminarily intercept larger particles in the water. The medium filter layer 121 is made of fine sand, which can filter out relatively small particles of impurities remaining in the water after coarse filtration. The fine filter layer 131 is made of expanded clay with a specific pore structure. Microbial flora with specific functions are added to the fine filter layer 131, which can use microorganisms to decompose organic matter in the water to achieve biological purification and further improve water quality. It is the key deep purification link of the entire multi-stage filtration.

[0045] Furthermore, mounting holes 82 are provided on both sides of the arc filter plate 8, and mounting bolts 821 are installed in the mounting holes 82. The side walls of the coarse filtration area 11 are reserved with slots for the mounting bolts 821 to pass through. The mounting bolts 821 fix the arc filter plate 8 inside the coarse filtration area 11 through the slots. When the arc filter plate 8 needs to be cleaned, repaired or replaced, the mounting bolts 821 can be easily pulled out of the slots, thereby removing the arc filter plate 8, and then reinstalling it after the corresponding maintenance work is performed. This will not cause significant damage to the structure of the entire coarse filtration area 11, and is easy to operate. A collecting groove 81 for collecting debris on the arc filter plate 8 is provided at the bottom of the arc filter plate 8, and its main function is to collect the debris intercepted and filtered by the arc filter plate 8. During the filtration process, the tail water drawn in from the pumping pipe 41 carries various impurities and washes away the debris. After hitting the arc filter plate 8, larger particles of debris will be intercepted and naturally fall into the collecting tank 81 below it, thereby realizing the preliminary centralized collection of debris and preventing these debris from mixing into the water flow again and affecting the subsequent filtering effect. The bottom wall of the collecting tank 81 is provided with filter holes, and the existence of these filter holes can allow part of the water that falls into the collecting tank 81 together with the debris to seep out and return to the coarse filtration area 11 to continue the subsequent filtration process. A debris discharge port 6 is provided through the side wall of the coarse filtration area 11 corresponding to the collecting tank 81, which provides a channel for the final discharge of the debris in the collecting tank 81. When the debris in the collecting tank 81 accumulates to a certain extent, the debris can be cleaned out through the debris discharge port 6 to prevent the debris from accumulating in the collecting tank 81 for a long time to breed bacteria, affect the water quality or hinder the normal water seepage function of the filter holes of the collecting tank 81.

[0046] The aperture of the filter is larger than that of the arc filter plate 8, which means that in the entire filtering process, the filter at the entrance of the suction pipe 41 first intercepts larger solid debris, and the arc filter plate 8 further intercepts and filters those particulate debris that can pass through the filter but are still relatively large. The two cooperate with each other and check layer by layer to gradually improve the filtering effect of solid impurities in the tail water, so that the water entering the subsequent filtering link (such as the coarse filter layer 111, etc.) has fewer impurities, reducing the burden on subsequent filtering components, and ensuring the efficient operation of the entire pond 2 aquaculture water and tail water circulation treatment system.

[0047] In this embodiment, the first water pump 4 is started to pump out the aquaculture tail water in the pond 2 through the pumping pipe 41 connected to the bottom of the pond 2. The filter at the entrance of the pumping pipe 41 first plays a role to intercept larger solid debris such as branches, large pieces of leftover bait and larger silt clumps to prevent them from entering the pumping pipe 41. The tail water after preliminary filtration is transported to the top of the coarse filtration area 11. At this time, the water flow will impact the arc filter plate 8 downward, and fall into the coarse filtration area 11 after being filtered by the arc filter plate 8. In the coarse filtration area 11, the tail water flows from top to bottom through the coarse filtration layer 111 formed by fine crushed stones. The coarse filtration layer 111 can intercept larger particles of impurities in the water, such as small stones, larger leftover bait and feces particles, and then flows into the middle filtration area 12 through the connection between the coarse filtration area 11 and the bottom of the middle filtration area 12. The water flowing into the middle filtration area 12 passes through the middle filtration layer 121 formed by fine sand. The filter layer 121 further filters out relatively small particle impurities, such as fine sand, algae fragments, etc., remaining in the water after coarse filtration. The guide pipe 122 on the side wall of the middle filtration area 12 collects the water filtered by the middle filtration layer 121 and transports it to the inside of the fine filtration layer 131. The filter disc at the end of the guide pipe 122 prevents particles in the middle filtration layer 121 and the fine filtration layer 131 from entering the guide pipe 122. After the water enters the fine filtration area 13, it passes through the fine filtration layer 131 formed by stacking ceramsite with a specific pore structure. The specific functional microbial flora added to the ceramsite begins to play a role. The microorganisms decompose organic matter in the water, such as ammonia nitrogen, nitrite and other harmful substances are converted into harmless substances, thereby achieving biological purification and further improving the water quality. The water deeply purified by the fine filtration layer 131 passes through the return pipe 43 and flows back to the top of the pond 2 under the action of the second water pump 42, completing a circulation treatment process.

[0048] Among them, the arc filter plate 8 can perform secondary filtration on the tail water, intercepting those particulate debris that can pass through the filter screen but are still relatively large. The intercepted debris falls into the collection groove 81 at the bottom of the arc filter plate 8. The filter holes on the bottom wall of the collection groove 81 allow part of the water to seep out and return to the coarse filtration area 11 for continued filtration. The debris in the collection groove 81 can be regularly cleaned through the debris discharge port 6 on the side wall of the coarse filtration area 11.

[0049] When the filter layer needs to be backwashed, the external backwash water pump injects water into the backwash system 3 through the backwash water inlet 31, and the external compressed air pump injects gas through the backwash air inlet 32. The backwash system 3 is laid at the bottom of each filter layer accordingly. The water flow and gas backwash the coarse filter layer 111, the medium filter layer 121 and the fine filter layer 131 upward to wash away the impurities attached to the filter material. The flushing wastewater is discharged through the backwash drain pipe 33 connected to each filter area. The valve 331 on the backwash drain pipe 33 can control the discharge of the flushing wastewater.

[0050] The heights of the coarse filter layer 111, the medium filter layer 121, and the fine filter layer 131 are arranged in a gradually decreasing gradient. Combined with the design of the guide pipe 122, the water flows through each filter layer naturally and orderly, thereby improving the filtration efficiency. Through the multi-stage filtration of the filter screen, the arc filter plate 8, the coarse filter layer 111, the medium filter layer 121, and the fine filter layer 131, and the biological purification effect of the microbial flora in the fine filter layer 131, various pollutants such as solid impurities, organic matter, ammonia nitrogen, and nitrite in the aquaculture tail water of the pond 2 can be effectively removed, the water quality can be significantly improved, and a good living environment can be provided for the aquaculture organisms in the pond 2, which is conducive to the healthy growth and reproduction of the aquaculture organisms. The backwash system 3 can regularly perform deep cleaning of the filter layer to maintain the good filtration performance of the filter layer, extend the service life of the filtration system, and reduce maintenance costs and downtime.

[0051] Example 2, refer to Figure 4-Figure 6 The vibration cleaning assembly includes a motor 5, a transmission shaft 51, a lever 7, a guide rod 71, a wheel 9 and an elastic rope 94. The motor 5 is fixedly connected to the outer wall of the coarse filtration area 11, the transmission shaft 51 is fixedly connected to the output end of the motor 5, and the transmission shaft 51 is rotatably connected to the side wall of the coarse filtration area 11. A reciprocating thread is provided on the transmission shaft 51 located inside the coarse filtration area 11, and a nut 52 is threadedly connected to the reciprocating thread section. A cleaning block 521 is fixedly connected to the lower side of the nut 52. When the motor 5 is started, the nut 52 will drive the cleaning block 521 to reciprocate along the collecting trough 81.

[0052] Furthermore, the cleaning block 521 abuts against the side wall of the collecting trough 81, limiting the movement trajectory of the cleaning block 521, and a brush is provided on the lower side wall of the cleaning block 521, and the end of the brush abuts against the bottom wall of the collecting trough 81, and the cleaning block 521 is provided in cooperation with the debris discharge port 6, and the brush combined with the movement of the cleaning block 521 can clean out the debris collected in the collecting trough 81 through the debris discharge port 6, and at the same time can also clean the filter holes on the bottom wall of the collecting trough 81, and the lever 7 is fixedly provided on the transmission shaft 51 located outside the coarse filtration area 11, and the side wall of the coarse filtration area 11 is provided with an arc groove 72 for the guide rod 71 to slide, and a rubber sleeve 73 is fixedly connected to the guide rod 71 located inside the coarse filtration area 11.

[0053] It should be noted that when the lever 7 rotates, it can push the guide rod 71 to slide in the arc groove 72. When the guide rod 71 slides to the top of the arc groove 72, the guide rod 71 abuts against the end of the lever 7, and the side wall of the rubber sleeve 73 abuts against the lower side wall of the arc filter plate 8, ensuring that the rotation of the lever 7 will not interfere with the guide rod 71. At this time, driven by the guide rod 71, the rubber sleeve 73 can collide with the bottom of the arc filter plate 8, and impurities adhered to the arc filter plate 8 can be shaken off into the collection tank 81.

[0054] In this embodiment, the motor 5 is started to drive the transmission shaft 51 to rotate. The nut 52 on the transmission shaft 51 and the cleaning block 521 on the lower side thereof make reciprocating motion in the collecting groove 81 due to the action of the reciprocating thread. The brush on the lower side wall of the cleaning block 521 cleans the side wall and the bottom wall of the collecting groove 81, and pushes the impurities to the impurity discharge port 6 for discharge. At the same time, as the transmission shaft 51 rotates, the lever 7 also makes a circular motion. When the lever 7 rotates to a specific position, it pushes the guide rod 71 to slide in the arc groove 72. Due to the special arc track design of the arc groove 72, the guide rod 71 gradually changes its position during the sliding process. The positioning relationship is that when the guide rod 71 slides to the top of the arc groove 72, the guide rod 71 abuts against the end of the lever 7, and at the same time, the side wall of the arc groove 72 abuts against the lower side wall of the arc filter plate 8. This structural design cleverly utilizes the power of the rotation of the lever 7. Through the cooperation of the guide rod 71 and the arc groove 72, the force is transmitted to the arc filter plate 8, causing the arc filter plate 8 to vibrate, thereby shaking off impurities attached to the arc filter plate 8, allowing the impurities to fall into the collection tank 81 below, further facilitating subsequent cleaning work, maintaining the good filtering performance of the arc filter plate 8, and avoiding the accumulation of impurities affecting its further filtering effect on tail water.

[0055] During the operation of the entire vibration cleaning component, driven by the motor 5, each component cooperates closely and works together. On the one hand, it can automatically and efficiently clean the debris in the collection tank 81 to maintain its normal collection and water seepage functions; on the other hand, it can vibrate and clean the arc filter plate 8 to remove impurities adhering to its surface. This automated cleaning method greatly reduces the need for manual intervention, reduces the cost and difficulty of manual cleaning, and at the same time ensures the cleanliness of key parts of the filtration system, helps to extend the service life of related components in the entire circulation treatment system, and ensures that the system can continuously and stably circulate and filter the aquaculture water and tail water of the pond 2, thereby improving the operating efficiency and reliability of the entire system, which is of great significance for maintaining a good water quality environment in the pond 2.

[0056] Example 3, refer to Figure 6-Figure 8The wheel disc 9 is fixedly arranged on the backwash drain pipe 33 at the coarse filtration area 11 and the medium filtration area 12. The inner side wall of the wheel disc 9 is fixedly connected with multiple sets of bending plates 91. The upper end of the bending plate 91 is fixedly connected with a magnetic plate 93. The lower end of the bending plate 91 is fixedly connected with a sphere 92. The multiple sets of bending plates 91 are equidistantly distributed in a ring along the edge of the wheel disc 9. The end of the magnetic plate 93 is fixedly connected to the side wall of the elastic rope 94.

[0057] It should be noted that the bending plate 91 is elastically arranged, and it can be deformed when subjected to force, and can return to its original shape when the external force disappears. A magnetic area 70 is arranged at the end of the lever 7 away from the transmission shaft 51, and the opposite surfaces of the magnetic area 70 and the magnetic plate 93 are magnetically arranged with different polarities. When the lever 7 moves to the vicinity of the magnetic plate 93, a magnetic attraction force is generated, thereby pulling the magnetic plate 93, and then driving the ball 92 to move through the bending plate 91. In the initial state, the ball 92 is against the inner bottom wall of the wheel disc 9. When driven by an external force, the ball 92 starts to move from the state of being against the inner bottom wall of the wheel disc 9, and uses its own weight and the impact force generated by the movement to impact the structure around the wheel disc 9 (the inner wall of the backwashing sewage pipe 33). Through repeated impact and vibration, impurities attached to these inner walls are loosened and fall off, thereby achieving the purpose of cleaning impurities.

[0058] In this embodiment, the wheel 9 is fixedly arranged on the backwash drain pipe 33 in the coarse filtration area 11 and the medium filtration area 12, and a plurality of groups of bending plates 91 are evenly distributed on the inner wall thereof. These bending plates 91 are arranged equidistantly in a ring shape, thereby ensuring that the forces in all directions are relatively balanced during operation, and the surrounding structures can be cleaned more comprehensively.

[0059] When the lever 7 is driven by the transmission shaft 51 to rotate to the vicinity of the magnetic plate 93, a magnetic attraction force is generated due to the mutual attraction of the magnetic polarities of the magnetic zone 70 and the magnetic plate 93. Under the action of the magnetic attraction force, the magnetic plate 93 is subjected to a pulling force toward the lever 7. Because the magnetic plate 93 is fixedly connected to the upper end of the bending plate 91, this pulling force is transmitted to the bending plate 91, causing the bending plate 91 to begin to elastically deform and gradually bend from its original initial state. The magnetic zone 70 will generate a magnetic attraction effect with the magnetic plate 93. This magnetic effect can pull the magnetic plate 93 on the one hand, Then, the sphere 92 is driven to move by the bending plate 91. When the sphere 92 is pulled up to a certain height, due to the continuous effect of the magnetic attraction and the combined influence of its own gravity, the sphere 92 will gain a certain acceleration and begin to move in a direction away from the inner bottom wall of the wheel disc 9. When the sphere 92 moves to a certain extent, the lever 7 leaves the vicinity of the magnetic plate 93, and the magnetic attraction decreases. The sphere 92 will fall back to the inner bottom wall of the wheel disc 9 or hit the structure around the wheel disc 9 (such as the inner wall of the backwashing sewage pipe 33) at a certain speed and impact force under the action of its own gravity and the elastic rope 94.

[0060] The impact of the sphere 92 will generate vibration, and this vibration is transmitted to the surface of the structure where the impurities are attached through the solid, so that the impurities originally attached to the inner wall of the backwash sewage pipe 33 and other structures are disturbed by the vibration, and the adhesion between them and the pipe wall is destroyed, so that they loosen and fall off. Moreover, since multiple groups of bending plates 91 are distributed equidistantly in a circle along the edge of the wheel disc 9, multiple spheres 92 will repeatedly perform such impact actions at different positions and at different times, resulting in a continuous vibration effect, which comprehensively and effectively cleans the inner walls of the surrounding structures and removes the attached impurities to the greatest extent.

[0061] During the whole process, the elastic rope 94 connected to the end of the magnetic plate 93 also plays an important role. When the magnetic plate 93 is pulled under the action of the magnetic attraction, the elastic rope 94 will stretch accordingly to store elastic potential energy. When the magnetic attraction weakens or disappears, the elastic potential energy stored in the elastic rope 94 begins to be released, and it will apply a reverse pulling force to the magnetic plate 93 to assist the magnetic plate 93 to return to its initial position, thereby driving the bending plate 91 to restore its original state, so that the sphere 92 can also return to its initial state against the inner bottom wall of the wheel 9, preparing for the next cleaning action. At the same time, the existence of the elastic rope 94 also plays a buffering and limiting role in the movement of the magnetic plate 93, the bending plate 91 and other components to a certain extent, avoiding them from excessive deformation or collision damage due to excessive external force, thereby ensuring that the entire structure can operate stably and reliably during multiple cycles of cleaning work.

[0062] Through the coordinated work among the above-mentioned components, that is, the wheel 9 provides support, the bending plate 91 realizes force transmission and deformation buffering, the magnetic plate 93 and the magnetic area 70 are driven by magnetic force, the sphere 92 uses impact vibration to clean impurities, and the elastic rope 94 assists in resetting, etc., such a cycle action is repeated, so that the inner wall of key structures such as the backwash drain pipe 33 can continue to remain relatively clean, avoiding blockage caused by long-term accumulation of impurities. This ensures that the backwash drain pipe 33 can normally discharge the flushing wastewater in the circulation treatment system of the aquaculture water and tail water of the entire pond 2, maintain the normal operation of each filtering link, and create a good water quality environment for the aquaculture organisms in the pond 2.

[0063] It should be noted that the specific models and specifications of the motor and water pump need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circulation treatment system for pond aquaculture water and tail water, comprising a treatment space (1), a pond (2), a water suction pipe (41) and a water return pipe (43), wherein a filter screen is installed at the inlet of the water suction pipe (41) to prevent larger solid debris from entering the water suction pipe (41), a first water pump (4) is installed on the water suction pipe (41), and a second water pump (42) is installed on the water return pipe (43), characterized in that: Also includes: Multi-stage filter assembly: the multi-stage filter assembly is arranged inside the processing space (1), and is used to absorb and filter the aquaculture tail water in the pond (2), and circulate it back into the pond (2) after purification; Curved filter plate (8): the curved filter plate (8) is arranged above the filter layer in the coarse filtration area (11), and the curved filter plate (8) is used to further filter the tail water drawn in by the water drawing pipe (41); A backwashing system (3) and a plurality of backwashing drainage pipes (33): the backwashing system (3) is laid in the processing space (1) and is located at the bottom; the plurality of backwashing drainage pipes (33) are respectively connected to the coarse filtration area (11), the medium filtration area (12), and the fine filtration area (13); a valve (331) is installed on the backwashing drainage pipe (33); the backwashing system (3) is used to flush the filter layer of the multi-stage filtration system; and the flushing wastewater is discharged through the backwashing drainage pipe (33); Vibration cleaning component: The vibration cleaning component is arranged on the processing space (1), and is used to clean impurities on the inner wall of the backwash drain pipe (33) in the coarse filtration area (11) and the medium filtration area (12) and on the arc filter plate (8).

2. A circulation treatment system for pond aquaculture water and tail water according to claim 1, characterized in that: The multi-stage filtration assembly comprises a coarse filtration area (11), a medium filtration area (12) and a fine filtration area (13) which are arranged in sequence in the treatment space (1) along the water flow direction; one end of the water suction pipe (41) is connected to the bottom of the pond (2), and the other end is connected to the top of the coarse filtration area (11); one end of the water return pipe (43) is connected to the fine filtration area (13), and the other end is connected to the top of the pond (2).

3. A circulation treatment system for pond aquaculture water and tail water according to claim 1, characterized in that: A coarse filter layer (111) is laid in the coarse filter area (11), a medium filter layer (121) is laid in the medium filter area (12), and a fine filter layer (131) is laid in the fine filter area (13); the coarse filter area (11) is connected to the bottom of the medium filter area (12); a flow guide pipe (122) is arranged on the side wall of the medium filter area (12); one end of the flow guide pipe (122) is located above the medium filter layer (121) and the other end extends to the inside of the fine filter layer (131); and a filter disc is installed at the end of the flow guide pipe (122).

4. A circulation treatment system for pond aquaculture water and tail water according to claim 3, characterized in that: The heights of the coarse filtration layer (111), the medium filtration layer (121), and the fine filtration layer (131) are arranged in a step-by-step decreasing gradient; the backwashing system (3) is laid on the bottom of the coarse filtration layer (111), the medium filtration layer (121), and the fine filtration layer (131) respectively; a backwashing water inlet (31) and a backwashing air inlet (32) are arranged at the end of the backwashing system (3) outside the processing space (1); the backwashing water inlet (31) is connected to an external backwashing water pump, and the backwashing air inlet (32) is connected to an external compressed air pump.

5. A circulation treatment system for pond aquaculture water and tail water according to claim 3, characterized in that: The coarse filter layer (111) is formed by stacking fine crushed stones, the medium filter layer (121) is formed by stacking fine sand, and the fine filter layer (131) is formed by stacking ceramsite with a specific pore structure. Microbial flora with specific functions are added to the fine filter layer (131).

6. A circulation treatment system for pond aquaculture water and tail water according to claim 1, characterized in that: Mounting holes (82) are provided on both sides of the arc-shaped filter plate (8), mounting bolts (821) are installed in the mounting holes (82), slots are reserved on the side walls of the coarse filtration area (11) for the mounting bolts (821) to pass through, and the mounting bolts (821) fix the arc-shaped filter plate (8) inside the coarse filtration area (11) through the slots, and a collecting groove (81) for collecting debris on the arc-shaped filter plate (8) is provided at the bottom of the arc-shaped filter plate (8), and filter holes are provided on the bottom wall of the collecting groove (81), and a debris discharge port (6) is provided through the side wall of the coarse filtration area (11) corresponding to the collecting groove (81), and the aperture of the filter screen is larger than the aperture of the arc-shaped filter plate (8).

7. A circulation treatment system for pond aquaculture water and tail water according to claim 6, characterized in that: The vibration cleaning assembly comprises a motor (5), a transmission shaft (51), a lever (7), a guide rod (71), a wheel (9) and an elastic rope (94); the motor (5) is fixedly connected to the outer wall of the coarse filtering area (11); the transmission shaft (51) is fixedly connected to the output end of the motor (5); the transmission shaft (51) is rotationally connected to the side wall of the coarse filtering area (11); a reciprocating thread is provided on the transmission shaft (51) located inside the coarse filtering area (11); a nut (52) is threadedly connected to the reciprocating thread section; and a cleaning block (521) is fixedly connected to the lower side of the nut (52).

8. A circulation treatment system for pond aquaculture water and tail water according to claim 7, characterized in that: The cleaning block (521) abuts against the side wall of the collecting groove (81); a brush is provided on the lower side wall of the cleaning block (521); the end of the brush abuts against the bottom wall of the collecting groove (81); and the cleaning block (521) is provided in coordination with the debris discharge port (6).

9. A circulation treatment system for pond aquaculture water and tail water according to claim 7, characterized in that: The shifting rod (7) is fixedly arranged on the transmission shaft (51) located outside the coarse filtering area (11); the side wall of the coarse filtering area (11) is provided with an arc-shaped groove (72) for the guide rod (71) to slide; the guide rod (71) located inside the coarse filtering area (11) is fixedly connected with a rubber sleeve (73); when the shifting rod (7) rotates, it can push the guide rod (71) to slide in the arc-shaped groove (72); when the guide rod (71) slides to the top of the arc-shaped groove (72), the guide rod (71) abuts against the end of the shifting rod (7), and the side wall of the rubber sleeve (73) abuts against the lower side wall of the arc-shaped filter plate (8).

10. A circulation treatment system for pond aquaculture water and tail water according to claim 7, characterized in that: The wheel disc (9) is fixedly arranged on the backwash sewage pipe (33) at the coarse filtering area (11) and the medium filtering area (12); the inner side wall of the wheel disc (9) is fixedly connected with a plurality of groups of bending plates (91); the upper end of the bending plate (91) is fixedly connected with a magnetic plate (93); the lower end of the bending plate (91) is fixedly connected with a sphere (92); the plurality of groups of bending plates (91) are equidistantly distributed in a ring along the edge of the wheel disc (9); the end of the magnetic plate (93) is fixedly connected with the side wall of the elastic rope (94); the bending plate (91) is elastically arranged; the end of the lever (7) away from the transmission shaft (51) is arranged with a magnetic area (70); the opposing surfaces of the magnetic area (70) and the magnetic plate (93) are arranged with different polarities; and the sphere (92) in an initial state abuts against the inner bottom wall of the wheel disc (9).

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