An aeration device for treating aquaculture tail water and its usage method

Abstract

The present invention belongs to the technical field of sewage treatment, and specifically relates to an aeration device and a usage method for treating the tail water of aquaculture, including an aerator; a diaphragm is sleeved on the surface of the aerator, a circular tube is fixedly connected to the bottom end of the aerator, a connecting pipe is communicated with the bottom end of the circular tube, and an air outlet groove communicated with the circular tube is opened at the top end of the aerator; by means of a filter screen, gas impurities flowing into the air inlet pipe can be filtered, reducing the blockage and damage of the diaphragm. By arranging a movable support rod, when the connecting pipe is working, gas can impact the support rod and make it abut against the surface of the filter screen. After the connecting pipe stops working, since the support rod is no longer affected by the impact of the air flow, it can reset and vibrate back and forth under the action of the second spring, thereby being able to repeatedly impact the filter screen, making the adhered impurities fall off and be cleaned more effectively, improving the cleanliness of the surface of the filter screen and the subsequent working effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and specifically relates to an aeration device and a usage method for treating the tail water of aquaculture. Background Art

[0002] In aquaculture, fish and shrimp will produce excrement. When these organic matters decompose, they will greatly consume the oxygen dissolved in the water, causing oxygen deficiency in the water to form tail water. When treating the tail water, a disk membrane aerator can be used. By clamping a membrane sheet with micropores on the bottom surface of the aerator, and then the aerator is connected to an air inlet pipe. Then, a large number of bubbles will be generated when the gas passes through the membrane sheet, so as to achieve the effect of oxygenating the water.

[0003] A patent of Chinese Patent Application CN210419470U discloses an improved disk membrane microporous aerator. The key points of its technical solution are: including a top plate, an air inlet pipe is movably sleeved inside the bottom end of the top plate, the bottom end of the air inlet pipe extends to the outside of the top plate, fixed plates are fixedly installed on both sides of the top end of the air inlet pipe, and L-shaped plates are fixedly installed on both sides of the bottom of the top plate.

[0004] In view of the above and related existing technologies, the inventor believes that the following defects often exist: since the gas passing through the air inlet pipe will contain impurities, these impurities pass through the air inlet pipe and the aerator and adhere to the inner wall of the membrane sheet. The impurities will accumulate more and more, resulting in the blockage of the micropores of the membrane sheet, and then affecting the normal use of the aerator. Summary of the Invention

[0005] In order to make up for the deficiencies of the existing technology and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: An aeration device for treating the tail water of aquaculture according to the present invention includes an aerator; a diaphragm is sleeved on the surface of the aerator, a round pipe is fixedly connected to the bottom end of the aerator, a connecting pipe is communicated with the bottom end of the round pipe, an air outlet groove communicated with the round pipe is opened at the top end of the aerator, a circular ring is fixedly connected to the side wall of the aerator, an annular groove is opened at the outer edge of the bottom surface of the circular ring and forms a stepped shape, a filter screen is fixedly connected to the inner wall of the connecting pipe, a group of annularly and evenly distributed support columns are fixedly connected to the inner wall of the connecting pipe, a support rod is slidably connected in the support column, the support rod is in a "V" shape, and a second spring is fixedly connected between the support rod and the inner wall of the support column; By installing the connecting pipe on the intake pipe, the intake pipe is located in the water tank, and then the diaphragm is sleeved on the step of the groove. At this time, the diaphragm will cover the top end of the aerator. The diaphragm is made of rubber and will form a chamber with the top end of the aerator. Then, let the intake pipe output gas into the chamber between the diaphragm and the aerator, and then the gas will spray out from the micropores of the diaphragm into the water to form bubbles, thereby oxygenating the tail water. At this time, the filter screen can be used to filter the gas impurities flowing in from the intake pipe, reducing the blockage and damage of the diaphragm. At the same time, due to the long-term impact of the air flow, the intercepted impurities are easily adhered to the filter screen and difficult to clean. At this time, by setting the movable support rod, when the connecting pipe is working, the gas can impact the support rod and make it abut against the surface of the filter screen. After the connecting pipe stops working, since the support rod is no longer affected by the impact of the air flow, it can reset under the action of the second spring and shake back and forth, thereby being able to repeatedly impact the filter screen, making the impurities adhered to the surface fall off and be cleaned more effectively, improving the cleanliness of the surface of the filter screen and the subsequent working effect.

[0007] Preferably, an annular elastic membrane is connected to the side wall and the top surface of the groove. A sealed chamber is formed between the elastic membrane and the groove. A connecting plate is fixedly connected to the inner wall of the circular tube. The bottom end surface of the connecting plate is rotatably connected to a rotating shaft through a driving component. A group of fan blades are fixedly connected to the surface of the rotating shaft. An impact plate is fixedly connected to the fan blades. An elastic first hollow capsule is fixedly connected to the inner wall of the connecting pipe. A group of first conduits communicate with the inside of the first hollow capsule. A group of annularly and evenly distributed hollow blocks are fixedly connected to the top end surface of the groove. A slider is hermetically slidably connected to the inner wall of the hollow block. An elastic cord (not shown in the figure) is arranged between the end of the slider close to the groove and the inner wall of the hollow block. The first conduit communicates with the inside of the hollow block; since there are many fish and shrimp in the aquaculture pond, and since the fish and shrimp will swim concentratedly near the aerator that releases oxygen, there is more excrement and silt near the aerator. When the membrane is sleeved on the groove, it cannot completely cover the groove, and the exposed area of the bottom surface of the groove will be polluted by silt or excrement. When taking it out, the polluted area needs to be cleaned. Otherwise, when used next time, the impurities in the polluted area will slide and adhere to the part where the groove and the membrane are engaged due to external forces, resulting in the membrane being prone to slipping when the membrane is reinstalled later, or due to impurities, it is difficult for the membrane to stably adhere to the surface of the groove and there are gaps, thus affecting the micro-hole bubble spraying effect of the membrane; at this time, by setting the above structure, the elastic membrane can cover the exposed area of the groove in the working state, and the driving component (the driving component can be a motor, not shown in the figure) can be started to drive the rotating shaft to rotate at a high speed, so that the impact plate on the fan blade intermittently squeezes the first hollow capsule. At this time, the gas in the first hollow capsule enters the hollow block through the first conduit, and then the gas intermittently pushes the slider, so that the slider continuously impacts the elastic membrane, thereby knocking off the impurities on the elastic membrane and reducing the accumulation of silt and excrement on the surface of the elastic membrane. When the membrane is sleeved on the groove, the membrane fits with the edge of the elastic membrane but does not cover the elastic membrane, so that the entire area of the bottom surface of the groove can be effectively protected, thus avoiding the situation that impurities adhere to the engaging part of the membrane, resulting in the membrane slipping when installed or having a gap with the groove; when disassembling the aerator from the intake pipe, the aerator needs to be manually rotated. At this time, because the silt and other impurities on the elastic membrane have been shaken off and cleaned, the hand can directly hold the elastic membrane and then effectively rotate the aerator to prevent slipping; and since the impurities contained in the gas passing through the connecting pipe are filtered by the filter screen, the impurities will accumulate and adhere and cake on the filter screen. At this time, some caked impurities will pass through the mesh holes of the filter screen under the action of high air pressure, and the blocky impurities passing through the mesh holes will be broken by the fan blades rotating at a high speed, so that they can be ejected from the micro-holes of the membrane to prevent the membrane from being blocked.

[0008] Preferably, a group of hollow elastic bags are fixedly connected to one side of the elastic membrane close to the hollow block, and a group of air outlet holes connected to the inside of the elastic bags are opened on the elastic membrane; when the slider impacts, the slider will impact the elastic bags, so that the water in the elastic bags is hit and sprayed out from the air outlet holes (the elastic bags are immersed in water), and at this time the water will impact the sludge at the bottom of the aeration tank, so that the sludge is impacted and allowed to react with the oxygen flushed into the aeration tank, thereby preventing the sludge accumulated at the bottom of the aeration tank from being unable to participate in the reaction during aeration, resulting in low oxygen mass transfer efficiency and causing the bottom sludge to become anaerobic.

[0009] Preferably, the device further comprises a lifting component, the lifting component comprises a sliding tube, the sliding tube is embedded in the ring, the bottom of the sliding tube is sealingly and slidably connected with a first sliding rod, the first sliding rod is slidably connected to the inside of the ring and extends to the inside of the groove, the inner side of the connecting plate is fixedly connected with a second hollow bag, the second hollow bag is connected with a second conduit, the other end of the second conduit is located in the sliding tube, and a control valve is arranged inside the sliding tube; since there is no gap at the engaging part between the diaphragm and the groove, it is difficult for a person to pull the diaphragm to disassemble it; by setting the above structure, when the aerator is working normally, the control valve is in a closed state, so that although the rotation of the fan blades will squeeze the second hollow bag, the gas inside it will not flow into the bottom of the ring, The first slide bar will not move as a result; and when the aerator is finished working and the diaphragm needs to be removed, the control valve is opened at this time, and the diaphragm will contact the bottom end surface of the first slide bar when it is sleeved on the step of the groove. At this time, when the fan blades rotate, they will squeeze the gas in the second hollow bag with the help of the impact plate, so that the gas enters the slide tube from the second conduit. At this time, the gas will push the first slide bar, so that the first slide bar will lift the diaphragm. At this time, there will be a gap between the diaphragm and the groove, and then the control valve is closed, so that the first slide bar will not reset, and then the diaphragm can be buckled off from the fitting groove surface with the help of the gap, so as to achieve the effect of facilitating the removal of the diaphragm, and then the control valve can be opened, and the second hollow bag will suck the gas in the slide tube for recovery, and at the same time, the gas will also suck the first slide bar to reset.

[0010] Preferably, the top end of the sliding tube is sealed and slidably connected with a second sliding rod, the second sliding rod is slidably connected to the inside of the ring and extends to the top of the ring, the sliding tube is a hollow structure, the number of the control valves is two groups, and the air outlet of the second conduit is located between the two control valves; when the aerator is working, the control valve close to the second sliding rod is opened, and the rotation of the fan blades will squeeze the second hollow capsule, so that the internal gas enters the sliding tube and pushes the second sliding rod, so that the second sliding rod hits the diaphragm covering the aerator, thereby causing the diaphragm to shake, and the diaphragm will push the water when it shakes. At this time, the bubbles generated on the diaphragm can better mix with the pushed water, and when the second hollow capsule recovers, it will suck the second sliding rod to reset it.

[0011] Preferably, a group of support plates are fixedly connected to the inner side wall of the ring. An fixing plate is slidably connected to the support plates. A rectangular plate is fixedly connected to the bottom end surface of the fixing plate. A first spring is fixedly connected between the rectangular plate and the support plates. When the diaphragm is sleeved on the step of the groove, the fixing plate can be pushed by the force of the first spring to squeeze the diaphragm, so as to further fix the diaphragm on the ring, thereby improving the sealing performance of the diaphragm on the ring.

[0012] Preferably, the number of the lifting components is not less than two, and they are evenly distributed in a ring centered on the axis of the ring. When the fan blade passes through the second hollow capsule in one of the lifting components, the second sliding rod will push the diaphragm. The position where the diaphragm is pushed will bulge, making the diaphragm inclined and spraying bubbles obliquely. By arranging multiple groups, the diaphragm can be successively pushed by the second sliding rods at different positions to spray bubbles obliquely in various directions respectively, improving the range of bubble spraying, and thus achieving the effect of improving the oxygenation of the tail water.

[0013] Preferably, an annular sealing groove is formed on the side wall of the ring. An annular sealing capsule is arranged at the position corresponding to the sealing groove on the diaphragm. When the diaphragm is sleeved on the ring, the sealing capsule can just be engaged with the sealing groove, improving the firmness during the assembly of the two and reducing the situation that the diaphragm falls off under air pressure. And when the fixing plate squeezes the diaphragm, the sealing capsule will be subjected to the pressure of the fixing plate, so that the sealing capsule expands and fills into the sealing groove, thereby improving the sealing performance between the diaphragm and the ring.

[0014] A using method of the aeration device for treating aquaculture tail water according to the present invention adopts the above-mentioned aeration device for treating aquaculture tail water. The using method includes the following steps:

[0015] S1: Arrange the air inlet pipe in the aeration tank, then install the diaphragm on the aerator, and then inject the tail water into the aeration tank.

[0016] S2: After the tail water is injected into the aeration tank, supply air to the aerator through the air inlet pipe, so that the gas passes through the diaphragm and then generates bubbles in the water to supply oxygen to the tail water.

[0017] S3: When it is necessary to replace the aerator, drain the treated tail water from the aeration tank, and then disassemble the aerator from the air inlet pipe.

[0018] The detailed steps of S2 are as follows:

[0019] S2a: When the gas passes through the connecting pipe, the filter screen can be used to filter the gas impurities flowing in from the air inlet pipe, reducing the blockage and damage of the diaphragm.

[0020] S2b: Drive the rotating shaft to rotate at high speed through the driving component, so that the impact plate on the fan blade squeezes the gas in the first hollow capsule. At this time, the gas enters the hollow block from the first conduit, and then the gas will push the slider, causing the slider to impact the elastic membrane, thereby knocking off the impurities on the elastic membrane and leaving no contaminated area on the groove;

[0021] S2c: When the fan blade rotates at high speed, the impurities that pass through the pores of the filter screen under the action of air pressure can be broken up and then ejected from the micropores of the diaphragm to prevent the diaphragm from being blocked.

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

[0023] 1. With the help of the filter screen, the gas impurities flowing into the air inlet pipe can be filtered, reducing the blockage and damage of the diaphragm. By setting the movable support rod, when the connecting pipe is working, the gas can impact the support rod and make it abut against the surface of the filter screen. After the connecting pipe stops working, since the support rod is no longer affected by the impact of the air flow, it can reset and vibrate back and forth under the action of the second spring, thereby being able to repeatedly impact the filter screen, making the adhered impurities fall off and be cleaned more effectively, improving the cleanliness of the filter screen surface and the subsequent working effect.

[0024] 2. By starting the driving component (the driving component can be a motor, not shown in the figure), the driving component drives the rotating shaft to rotate at high speed, so that the impact plate on the fan blade squeezes the first hollow capsule. At this time, the gas in the first hollow capsule enters the hollow block from the first conduit, and then the gas will push the slider, causing the slider to impact the elastic membrane, thereby knocking off the impurities on the elastic membrane and leaving no contaminated area on the groove. After that, when the diaphragm is sleeved at the groove, the diaphragm fits with the edge of the elastic membrane but does not cover the elastic membrane, thus avoiding impurities from adhering to the clamping part of the diaphragm. Description of the Drawings

[0025] The present invention will be further described below with reference to the drawings.

[0026] Figure 1 is the three-dimensional view of the present invention;

[0027] Figure 2 is the structural schematic diagram of the connecting pipe of the present invention;

[0028] Figure 3 is the cross-sectional view of the aerator in the present invention;

[0029] Figure 4 is the partial structural schematic diagram of removing the elastic membrane of the ring in the present invention;

[0030] Figure 5 is the cross-sectional view of the sliding pipe in the present invention;

[0031] Figure 6It is a cross-sectional view of the circular tube in the present invention;

[0032] Figure 7 Partial structural schematic diagram of the diaphragm covering the circular ring in the present invention

[0033] Figure 8 It is a flowchart of the usage method of the aeration device in the present invention;

[0034] Figure 9 It is a detailed step flowchart of S2 in the present invention.

[0035] In the figure: 1. Aerator; 2. Circular ring; 3. Circular tube; 4. Connecting pipe; 5. Connecting plate; 6. Rotating shaft; 7. First hollow capsule; 8. Fan blade; 9. Impact plate; 10. First conduit; 11. Groove; 12. Elastic membrane; 13. Hollow block; 14. Slide block; 15. Elastic capsule; 16. Support plate; 17. Fixed plate; 18. Rectangular plate; 19. First spring; 20. Diaphragm; 21. Sealing capsule; 22. Slide tube; 23. First slide bar; 24. Second conduit; 25. Control valve; 27. Second slide bar; 29. Second hollow capsule; 30. Support column; 31. Second spring; 32. Filter screen; 33. Support rod; 34. Air outlet. Specific embodiments

[0036] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0037] Embodiment 1

[0038] As Figures 1 to 6As shown in the figure, an aeration device for treating the tail water of aquaculture according to an embodiment of the present invention includes an aerator 1; a diaphragm 20 is sleeved on the surface of the aerator 1, a circular tube 3 is fixedly connected to the bottom end of the aerator 1, a connecting tube 4 is communicated with the bottom end of the circular tube 3, an air outlet groove communicated with the circular tube 3 is opened at the top end of the aerator 1, a circular ring 2 is fixedly connected to the side wall of the aerator 1, an annular groove 11 is opened at the outer edge of the bottom surface of the circular ring 2 to form a stepped shape, a filter screen 32 is fixedly connected to the inner wall of the connecting tube 4, a group of annularly and evenly distributed support columns 30 are fixedly connected to the inner wall of the connecting tube 4, a support rod 33 is slidably connected in the support column 30, the support rod 33 is in a "V" shape, and a second spring 31 is fixedly connected between the support rod 33 and the inner wall of the support column 30; by installing the connecting tube 4 on the air inlet pipe, the air inlet pipe is located in the water tank, and then the diaphragm 20 is sleeved on the stepped part of the groove 11. At this time, the diaphragm 20 will cover the top end of the aerator 1. The diaphragm 20 is made of rubber, and a chamber will be formed between the diaphragm 20 and the top end of the aerator 1. Then, the air inlet pipe will output gas into the chamber between the diaphragm 20 and the aerator 1, and then the gas will be ejected from the micropores of the diaphragm 20 into the water to form bubbles, so as to oxygenate the tail water. At this time, the filter screen 32 can be used to filter the gas impurities flowing in from the air inlet pipe, reduce the blockage and damage of the diaphragm 20. At the same time, due to the long-term impact of the air flow, the intercepted impurities are easy to adhere to the filter screen 32 and are difficult to clean. At this time, by setting the movable support rod 33, when the connecting tube 4 is working, the gas can impact the support rod 33 and make it abut against the surface of the filter screen 32. When the connecting tube 4 stops working, since the support rod 33 is no longer affected by the impact of the air flow, it can reset and vibrate back and forth under the action of the second spring 31, so as to repeatedly impact the filter screen 32, making the impurities adhered to the surface fall off and be cleaned more effectively, improving the cleanliness of the surface of the filter screen 32 and the subsequent working effect.

[0039] An annular elastic membrane 12 is connected to the side wall and the top surface of the groove 11. A sealed chamber is formed between the elastic membrane 12 and the groove 11. A connecting plate 5 is fixedly connected to the inner wall of the circular tube 3. The bottom end surface of the connecting plate 5 is rotationally connected to a rotating shaft 6 through a driving assembly. A group of fan blades 8 are fixedly connected to the surface of the rotating shaft 6. An impact plate 9 is fixedly connected to the fan blades 8. An elastic first hollow bladder 7 is fixedly connected to the inner wall of the connecting pipe 4. A group of first conduits 10 communicate with the inside of the first hollow bladder 7. A group of annularly and evenly distributed hollow blocks 13 are fixedly connected to the top end surface of the groove 11. A slider 14 is hermetically and slidably connected to the inner wall of the hollow block 13. An elastic rope (not shown in the figure) is arranged between the end of the slider 14 close to the groove 11 and the inner wall of the hollow block 13. The first conduit 10 communicates with the inside of the hollow block 13; Since there are many fish and shrimp in the aquaculture pond, and since the fish and shrimp will swim concentratedly near the aerator 1 that releases oxygen, there is more excrement and silt near the aerator 1. When the diaphragm 20 is sleeved on the groove 11, it cannot completely cover the groove 11, and the exposed area of the bottom surface of the groove 11 will be contaminated by silt or excrement. When taking it out, the contaminated area needs to be cleaned. Otherwise, when used next time, the impurities in the contaminated area will slide and adhere to the part where the groove 11 and the diaphragm 20 are engaged due to external forces, resulting in the diaphragm 20 being prone to slipping when the diaphragm 20 is reinstalled later, or due to the impurities, it is difficult for the diaphragm 20 to stably adhere to the surface of the groove 11 and there are gaps, thus affecting the micro-hole bubble spraying effect of the diaphragm 20; At this time, by setting the above structure, the elastic membrane 12 can cover the exposed area of the groove 11 in the working state, and the driving assembly (the driving assembly can be a motor, not shown in the figure) can be started to drive the rotating shaft 6 to rotate at a high speed, so that the impact plate 9 on the fan blades 8 intermittently squeezes the first hollow bladder 7. At this time, the gas in the first hollow bladder 7 enters the hollow block 13 through the first conduit 10, and then the gas intermittently pushes the slider 14, so that the slider 14 continuously impacts the elastic membrane 12, thereby knocking off the impurities on the elastic membrane 12 and reducing the accumulation of silt and excrement on the surface of the elastic membrane 12. When the diaphragm 20 is sleeved at the groove 11, the edge of the diaphragm 20 fits with the elastic membrane 12 but does not cover the elastic membrane 12, so that the entire area of the bottom surface of the groove 11 can be effectively protected, thus avoiding the situation that impurities adhere to the engaging part of the diaphragm 20, resulting in slipping of the diaphragm 20 during installation or a gap between the diaphragm 20 and the groove 11; When disassembling the aerator 1 from the intake pipe, the aerator 1 needs to be manually rotated. At this time, because the silt and other impurities on the elastic membrane 12 have been shaken off and cleaned, the hand can directly hold the elastic membrane 12 and then effectively rotate the aerator 1 to prevent slipping;Since the impurities contained in the gas passing through the connecting pipe 4 will be filtered by the filter 32, the impurities will accumulate more and more in the filter 32 and adhere to agglomerate. At this time, some agglomerated impurities will pass through the mesh of the filter 32 under the action of high air pressure, and the block impurities passing through the mesh will be broken by the high-speed rotating fan blades 8, so that they can be sprayed out from the micropores of the diaphragm 20 to prevent the diaphragm 20 from being blocked. ;

[0040] A group of hollow elastic bags 15 are fixedly connected to one side of the elastic membrane 12 close to the hollow block 13, and a group of air outlet holes 34 connected to the inside of the elastic bag 15 are opened on the elastic membrane 12; when the slider 14 impacts, the slider 14 will impact the elastic bag 15, so that the water in the elastic bag 15 is impacted and sprayed out from the air outlet holes 34 (the elastic bag 15 is immersed in water), and at this time, the water will impact the sludge at the bottom of the aeration tank, so that the sludge is impacted and allowed to react with the oxygen flushed into the aeration tank, so as to prevent the sludge accumulated at the bottom of the aeration tank from being unable to participate in the reaction during aeration, and the oxygen mass transfer efficiency is low, so that the bottom sludge becomes anaerobic.

[0041] The device also includes a lifting component, which includes a sliding tube 22, which is embedded in the ring 2, and the bottom of the sliding tube 22 is sealed and slidably connected with a first sliding rod 23, which is slidably connected to the inside of the ring 2 and extends to the inside of the groove 11, and the inner side of the connecting plate 5 is fixedly connected with a second hollow capsule 29, and the second hollow capsule 29 is connected with a second conduit 24, and the other end of the second conduit 24 is located in the sliding tube 22, and a control valve 25 is arranged inside the sliding tube 22; since there is no gap at the engaging part between the diaphragm 20 and the groove 11, it is difficult for a person to pull the diaphragm 20 to disassemble it when disassembling it; by setting the above structure, when the aerator 1 is working normally, the control valve 25 is in a closed state, so that although the rotation of the fan blade 8 will squeeze the second hollow capsule 29, it will not cause the gas inside it to flow into the bottom of the ring 2, so that the first The slide bar 23 will not move as a result; and when the aerator 1 has finished working and the diaphragm 20 needs to be disassembled, the control valve 25 is opened at this time, and the diaphragm 20 will contact the bottom end surface of the first slide bar 23 when it is sleeved on the step of the groove 11. At this time, when the fan blade 8 rotates, it will use the impact plate 9 to squeeze the gas in the second hollow bag 29, so that the gas enters the slide tube 22 from the second conduit 24. At this time, the gas will push the first slide bar 23, so that the first slide bar 23 will lift the diaphragm 20. At this time, there will be a gap between the diaphragm 20 and the groove 11, and then close the control valve 25, so that the first slide bar 23 will not reset, and then the diaphragm 20 can be buckled off from the surface of the groove 11 with the help of the gap, so as to achieve the effect of facilitating the disassembly of the diaphragm 20, and then the control valve 25 can be opened. At this time, the second hollow bag 29 will suck the gas in the slide tube 22 for recovery, and at the same time, the gas will also suck the first slide bar 23 to reset.

[0042] A second sliding rod 27 is hermetically and slidably connected to the top end of the sliding pipe 22. The second sliding rod 27 is slidably connected to the inside of the ring 2 and extends to the top end of the ring 2. The sliding pipe 22 is of a hollow structure. The number of the control valves 25 is two groups, and the air outlet of the second conduit 24 is located between the two control valves 25. When the aerator 1 works, the control valve 25 close to the second sliding rod 27 is opened. The rotation of the fan blade 8 will squeeze the second hollow bladder 29, so that the gas inside enters the sliding pipe 22 and pushes the second sliding rod 27, causing the second sliding rod 27 to impact the diaphragm 20 covering the aerator 1, so that the diaphragm 20 vibrates. When the diaphragm 20 vibrates, it will push the water. At this time, the bubbles generated on the diaphragm 20 can better mix and react with the pushed water. When the second hollow bladder 29 is restored, it will suck the second sliding rod 27 to reset.

[0043] A group of support plates 16 are fixedly connected to the inner side wall of the ring 2. A fixing plate 17 is slidably connected to the support plate 16. The bottom end surface of the fixing plate 17 is fixedly connected to a rectangular plate 18. A first spring 19 is fixedly connected between the rectangular plate 18 and the support plate 16. When the diaphragm 20 is sleeved on the step of the groove 11, the fixing plate 17 can be pushed by the first spring 19 to squeeze the diaphragm 20, so as to further fix the diaphragm 20 on the ring 2, thereby improving the sealing performance of the diaphragm 20 on the ring 2.

[0044] The number of the jacking components is not less than two groups, and they are arranged in a circular uniform distribution centered on the axis of the ring 2. When the fan blade 8 passes through the second hollow bladder 29 in one of the jacking components, the second sliding rod 27 will jack the diaphragm 20. The position where the diaphragm 20 is jacked will bulge, making the diaphragm 20 inclined and spraying bubbles obliquely. By setting multiple groups, the diaphragm 20 can be successively pushed by the second sliding rods 27 at different positions to spray bubbles obliquely in various directions respectively, improving the range of bubble spraying, and thus achieving the effect of improving the oxygenation of the tail water.

[0045] Embodiment 2

[0046] As Figure 7 shown, compared with Embodiment 1, another implementation manner of the present invention is:

[0047] An annular sealing groove is formed on the side wall of the annular ring 2, and an annular sealing bladder 21 is arranged at a position corresponding to the sealing groove on the diaphragm 20. When the diaphragm 20 is sleeved on the annular ring 2, the sealing bladder 21 can just be engaged with the sealing groove, improving the firmness during the assembly of the two and reducing the situation where the diaphragm 20 falls off under air pressure. Moreover, when the fixing plate 17 presses the diaphragm 20, the sealing bladder 21 will be subjected to the pressure of the fixing plate 17, so that the sealing bladder 21 expands and fills into the sealing groove, thereby improving the sealing performance between the diaphragm 20 and the annular ring 2.

[0048] As Figures 8 - 9 shown, a method for using an aeration device for treating aquaculture tail water according to the present invention uses the above-mentioned aeration device for treating aquaculture tail water, and the method includes the following steps:

[0049] S1: Arrange the air inlet pipe in the aeration tank, then install the diaphragm on the aerator 1, and then inject the tail water into the aeration tank.

[0050] S2: After the tail water is injected into the aeration tank, supply air to the aerator 1 through the air inlet pipe, so that the gas passes through the diaphragm and then generates bubbles in the water to supply oxygen to the tail water.

[0051] S3: When the aerator 1 needs to be replaced, drain the treated tail water from the aeration tank, and then remove the aerator 1 from the air inlet pipe.

[0052] The detailed steps of S2 are as follows:

[0053] S2a: When the gas passes through the connecting pipe 4, the filter screen 32 can filter the gas impurities flowing into the air inlet pipe, reducing the blockage and damage of the diaphragm 20.

[0054] S2b: Drive the rotating shaft 6 to rotate at a high speed through the driving component, so that the impact plate 9 on the fan blade 8 presses the gas in the first hollow bladder 7. At this time, the gas enters the hollow block 13 through the first conduit 10, and then the gas will push the slider 14, so that the slider 14 impacts the elastic membrane 12, thereby knocking off the impurities on the elastic membrane 12 and making the groove 11 free of contaminated areas.

[0055] S2c: When the fan blade 8 rotates at a high speed, the impurities passing through the mesh holes of the filter screen 32 under the action of air pressure can be broken up and then ejected from the micropores of the diaphragm 20 to prevent the diaphragm 20 from being blocked.

[0056] Working principle: By installing the connecting pipe 4 onto the air inlet pipe, the air inlet pipe is located inside the water tank, and then the diaphragm 20 is sleeved on the step of the groove 11. At this time, the diaphragm 20 will cover the top end of the aerator 1. The diaphragm 20 is made of rubber, and a chamber will be formed between the diaphragm 20 and the top end of the aerator 1. Then, the air inlet pipe outputs gas into the chamber between the diaphragm 20 and the aerator 1, and then the gas will spray out from the micropores of the diaphragm 20 into the water to form bubbles, thereby oxygenating the tail water. At this time, the filter screen 32 can be used to filter the gas impurities flowing into the air inlet pipe, reducing the blockage and damage of the diaphragm 20. At the same time, due to the long-term impact of the air flow, the intercepted impurities are easy to adhere to the filter screen 32 and difficult to clean. At this time, by setting the movable support rod 33, when the connecting pipe 4 is working, the gas can impact the support rod 33 and make it abut against the surface of the filter screen 32. After the connecting pipe 4 stops working, since the support rod 33 is no longer affected by the impact of the air flow, it can reset and vibrate back and forth under the action of the second spring 31, so as to repeatedly impact the filter screen 32, making the impurities adhered to the surface fall off and be cleaned more effectively, improving the cleanliness of the surface of the filter screen 32 and the subsequent working effect; An annular elastic membrane 12 is connected to the side wall and the top surface of the groove 11. A sealed chamber is formed between the elastic membrane 12 and the groove 11. A connecting plate 5 is fixedly connected to the inner wall of the round pipe 3. The bottom end surface of the connecting plate 5 is rotationally connected to a rotating shaft 6 through a driving component. A group of fan blades 8 are fixedly connected to the surface of the rotating shaft 6. An impact plate 9 is fixedly connected to the fan blades 8. An elastic first hollow bladder 7 is fixedly connected to the inner wall of the connecting pipe 4. A group of first conduits 10 communicate with the first hollow bladder 7. A group of annularly distributed hollow blocks 13 are fixedly connected to the top surface of the groove 11. A slider 14 is hermetically slidably connected to the inner wall of the hollow block 13. An elastic rope (not shown in the figure) is arranged between the end of the slider 14 close to the groove 11 and the inner wall of the hollow block 13. The first conduit 10 communicates with the inside of the hollow block 13; Since there are many fish and shrimp in the water tank for aquaculture, and the fish and shrimp will swim concentratedly near the aerator 1 that releases oxygen, there is more excrement and silt near the aerator 1. When the diaphragm 20 is sleeved on the groove 11, the groove 11 cannot be completely covered, and the exposed area at the bottom of the groove 11 will be polluted by silt or excrement. When taking it out, the polluted area needs to be cleaned. Otherwise, when using it next time, the impurities in the polluted area will slide and adhere to the part where the groove 11 and the diaphragm 20 are engaged due to external forces, resulting in the diaphragm 20 being prone to slipping when the diaphragm 20 is reinstalled later, or due to the impurities, it is difficult for the diaphragm 20 and the surface of the groove 11 to stably fit and there are gaps, thus affecting the micropore bubble spraying effect of the diaphragm 20;At this time, by setting the above structure, the elastic membrane 12 can cover the exposed area of ​​the groove 11 in the working state, and the driving component can be started (the driving component can be a motor, not shown in the figure), so that the driving component drives the rotating shaft 6 to rotate at a high speed, so that the impact plate 9 on the fan blade 8 intermittently squeezes the first hollow bag 7. At this time, the gas in the first hollow bag 7 enters the hollow block 13 from the first conduit 10, and then the gas will intermittently push the slider 14, so that the slider 14 continuously impacts the elastic membrane 12, thereby knocking off the impurities on the elastic membrane 12 and reducing the accumulation of sludge and excrement on the surface of the elastic membrane 12. When the diaphragm 20 is sleeved on the groove 11, the diaphragm 20 and the elastic membrane The edge of 12 fits but does not cover the elastic membrane 12, so that the entire area of ​​the bottom surface of the groove 11 can be effectively protected, thereby preventing impurities from adhering to the snap-fitting part of the diaphragm 20, causing the diaphragm 20 to slip during installation or a gap between it and the groove 11; when the aerator 1 is disassembled from the air inlet pipe, the aerator 1 needs to be manually rotated. At this time, because the silt and other impurities on the elastic membrane 12 have been shaken off and cleaned, the hand can be directly held on the elastic membrane 12 and then the aerator 1 can be effectively rotated to prevent slipping; and because the impurities contained in the gas passing through the connecting pipe 4 will be filtered by the filter screen 32, the impurities will accumulate more and more on the filter screen 32 and adhere to the agglomeration. At this time, some of the agglomerated impurities will be in the high gas Under the action of high pressure, the impurities in the form of blocks passing through the mesh of the filter 32 will be broken by the high-speed rotating blades 8, and thus can be ejected from the micropores of the diaphragm 20, thereby preventing the diaphragm 20 from being blocked; a group of hollow elastic capsules 15 are fixedly connected to the side of the elastic membrane 12 close to the hollow block 13, and a group of air outlet holes 34 connected to the inside of the elastic capsule 15 are opened on the elastic membrane 12; when the slider 14 impacts, the slider 14 impacts the elastic capsule 15, so that the water in the elastic capsule 15 is impacted and ejected from the air outlet holes 34 (the elastic capsule 15 is immersed in water), and at this time, the water impacts the sludge at the bottom of the aeration tank, so that the sludge is impacted and can react with the oxygen flushed into the aeration tank, thereby preventing the aeration tank from being aerated during the aeration process. The sludge accumulated at the bottom of the gas pool cannot participate in the reaction, and the oxygen mass transfer efficiency is low, so that the bottom sludge produces anaerobic conditions; the device also includes a jacking component, which includes a sliding pipe 22, and the sliding pipe 22 is embedded in the ring 2. The bottom of the sliding pipe 22 is sealed and slidably connected with a first sliding rod 23, and the first sliding rod 23 is slidably connected to the inside of the ring 2 and extends to the inside of the groove 11. The inner side of the connecting plate 5 is fixedly connected with a second hollow capsule 29, and the second hollow capsule 29 is connected with a second conduit 24. The other end of the second conduit 24 is located in the ring 2, and a control valve 25 is arranged inside the sliding pipe 22; because there is no gap at the engaging part of the diaphragm 20 and the groove 11, it is difficult for people to pull the diaphragm 20 to disassemble it when disassembling it;By setting the above structure, when the aerator 1 is working normally, the control valve 25 is in a closed state, so that although the rotation of the fan blade 8 will squeeze the second hollow capsule 29, the gas inside it will not flow into the bottom of the ring 2, so that the first slide bar 23 will not move as a result; and when the aerator 1 is finished working and the diaphragm 20 needs to be disassembled, the control valve 25 is opened at this time, and the diaphragm 20 will contact the bottom end surface of the first slide bar 23 when it is sleeved on the step of the groove 11. At this time, when the fan blade 8 rotates, it will squeeze the gas in the second hollow capsule 29 with the help of the impact plate 9, so that the gas enters the slide tube 22 from the second conduit 24. At this time, the gas will push the first slide bar 23, so that the first slide bar 23 will lift the diaphragm 20, and there will be a gap between the diaphragm 20 and the groove 11 , and then close the control valve 25 so that the first slide bar 23 will not reset, and then the diaphragm 20 can be buckled off from the surface of the fitted groove 11 with the help of the gap, so as to achieve the effect of convenient disassembly of the diaphragm 20, and then the control valve 25 can be opened, at this time the second hollow bag 29 will suck the gas in the slide tube 22 to restore, and at the same time the gas will also suck the first slide bar 23 to reset; the top of the slide tube 22 is sealed and slidably connected with the second slide bar 27, the second slide bar 27 is slidably connected to the inside of the ring 2 and extends to the top of the ring 2, the slide tube 22 is a hollow structure, the number of control valves 25 is two groups, and the air outlet of the second conduit 24 is located between the two control valves 25; when the aerator 1 is working, the control valve 25 close to the second slide bar 27 is opened, and the fan blade 8 rotates to The second hollow bag 29 is squeezed, so that the gas inside enters the slide tube 22 and pushes the second slide bar 27, so that the second slide bar 27 hits the diaphragm 20 covering the aerator 1, so that the diaphragm 20 shakes. When the diaphragm 20 shakes, it pushes the water. At this time, the bubbles generated on the diaphragm 20 can be better mixed with the pushed water. When the second hollow bag 29 recovers, it will suck the second slide bar 27 to reset; a group of support plates 16 are fixedly connected to the inner wall of the ring 2, and a fixing plate 17 is slidably connected to the support plate 16. The bottom end surface of the fixing plate 17 is fixedly connected to a rectangular plate 18, and a first spring 19 is fixedly connected between the rectangular plate 18 and the support plate 16; when the diaphragm 20 is sleeved on the step of the groove 11, it can be used to The force of the first spring 19 to push the fixing plate 17 allows the fixing plate 17 to squeeze the diaphragm 20, thereby further fixing the diaphragm 20 on the ring 2, thereby improving the sealing of the diaphragm 20 on the ring 2; the number of the jacking components is not less than two groups, and they are evenly distributed in a ring shape with the axis of the ring 2 as the center; when the fan blade 8 passes through the second hollow bag 29 in one of the jacking components, the second slide bar 27 will push the diaphragm 20, and the position where the diaphragm 20 is pushed will bulge, so that the diaphragm 20 is inclined and sprays bubbles obliquely. By setting multiple groups, the diaphragm 20 can be pushed by the second slide bars 27 at different positions, and spray bubbles in all directions in turn, thereby increasing the range of bubble spraying, thereby achieving the effect of improving the oxygenation of the tail water. ;

[0057] The front, rear, left, right, top, and bottom mentioned above are all based on the Figure 1 in the attached drawings of the specification. Taking the perspective of the person observing as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0059] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An aeration device for treating tail water of aquaculture, Features: The invention comprises an aerator (1); the surface of the aerator (1) is covered with a diaphragm (20); the bottom end of the aerator (1) is fixedly connected to a circular tube (3); the bottom end of the circular tube (3) is connected to a connecting tube (4); the top end of the aerator (1) is provided with an air outlet groove connected to the circular tube (3); the side wall of the aerator (1) is fixedly connected to a circular ring (2); the outer edge of the bottom surface of the circular ring (2) is provided with an annular groove (11) in a stepped manner; the inner wall of the connecting tube (4) is fixedly connected to a filter screen (32); the inner wall of the connecting tube (4) is fixedly connected to a group of annularly evenly distributed support columns (30); a support rod (33) is slidably connected inside the support column (30); the support rod (33) is in a "V" shape; a second spring (31) is fixedly connected between the support rod (33) and the inner wall of the support column (30); An annular elastic membrane (12) is connected to the side wall and the top surface of the groove (11), and a sealed chamber is formed between the elastic membrane (12) and the groove (11). A connecting plate (5) is fixedly connected to the inner wall of the circular tube (3), and the bottom end surface of the connecting plate (5) is rotatably connected to a rotating shaft (6) through a driving component. A group of fan blades (8) are fixedly connected to the surface of the rotating shaft (6), and an impact plate (9) is fixedly connected to the fan blades (8). The inner wall of the connecting tube (4) is fixedly connected to the inner wall of the connecting tube (4). A first elastic hollow bag (7) is fixedly connected, a group of first conduits (10) are connected inside the first hollow bag (7), a group of hollow blocks (13) evenly distributed in an annular shape are fixedly connected to the top surface of the groove (11), a slider (14) is sealingly and slidably connected to the inner wall of the hollow block (13), an elastic rope is arranged between one end of the slider (14) close to the groove (11) and the inner wall of the hollow block (13), and the first conduit (10) is connected to the inside of the hollow block (13).

2. An aeration device for treating aquaculture tailwater according to claim 1, Features: A group of hollow elastic bags (15) are fixedly connected to one side of the elastic membrane (12) close to the hollow block (13), and a group of air outlet holes (34) communicating with the inside of the elastic bags (15) are provided on the elastic membrane (12).

3. An aeration device for treating aquaculture tailwater according to claim 2, Features: The device also includes a lifting component, which includes a sliding tube (22), the sliding tube (22) is embedded in the ring (2), the bottom of the sliding tube (22) is sealingly slidably connected to a first sliding rod (23), the first sliding rod (23) is slidably connected to the inside of the ring (2) and extends to the inside of the groove (11), the inner side of the connecting plate (5) is fixedly connected to a second hollow bag (29), the second hollow bag (29) is connected to a second conduit (24), the other end of the second conduit (24) is located in the sliding tube (22), and a control valve (25) is arranged inside the sliding tube (22).

4. An aeration device for treating tail water of aquaculture according to claim 3, It is characterized in that: A second sliding rod (27) is hermetically and slidably connected to the top end of the sliding pipe (22). The second sliding rod (27) is slidably connected inside the ring (2) and extends to the top end of the ring (2). The number of the control valves (25) is two groups, and the air outlet of the second conduit (24) is located between the two control valves (25).

5. An aeration device for treating aquaculture tail water according to claim 1, It is characterized in that: A group of support plates (16) are fixedly connected to the inner side wall of the ring (2). A fixing plate (17) is slidably connected to the support plate (16). The bottom end surface of the fixing plate (17) is fixedly connected with a rectangular plate (18). A first spring (19) is fixedly connected between the rectangular plate (18) and the support plate (16).

6. An aeration device for treating aquaculture tail water according to claim 3, It is characterized in that: The number of the jacking components is not less than two groups, and they are arranged in a circumferential and uniform distribution centered on the axis of the ring (2).

7. An aeration device for treating aquaculture tail water according to claim 5, It is characterized in that: An annular sealing groove is formed on the side wall of the ring (2). An annular sealing capsule (21) is arranged at a position corresponding to the sealing groove of the diaphragm (20).

8. A using method of an aeration device for treating aquaculture tail water, which uses the aeration device for treating aquaculture tail water according to any one of claims 1-7, It is characterized in that: This using method includes the following steps: S1: After arranging the air inlet pipe in the pool, then installing the diaphragm on the aerator (1), and then injecting the tail water into the pool; S2: After the tail water is injected into the pool, supply air to the aerator (1) through the air inlet pipe, so that the gas passes through the diaphragm, and then generates bubbles in the water to supply oxygen to the tail water; S3: When it is necessary to replace the aerator (1), drain the treated tail water from the pool, and then disassemble the aerator (1) from the air inlet pipe.

9. A using method of an aeration device for treating aquaculture tail water according to claim 8, It is characterized in that: The detailed steps of S2 are as follows: S2a: When the gas passes through the connecting pipe (4), the filter screen (32) can filter the gas impurities flowing in from the air inlet pipe, reducing the blockage and damage of the diaphragm (20); S2b: Drive the rotating shaft (6) to rotate at a high speed through the driving component, so that the impact plate (9) on the fan blade (8) extrudes the gas in the first hollow capsule (7). At this time, the gas enters the hollow block (13) from the first conduit (10), and then the gas will push the slider (14), so that the slider (14) impacts the elastic membrane (12), thereby knocking off the impurities on the elastic membrane (12), making the groove (11) have no contaminated area; S2c: When the fan blade (8) rotates at a high speed, it can break up the impurities passing through the mesh holes of the filter screen (32) under the action of air pressure, and then can be ejected from the micropores of the diaphragm (20) to prevent the diaphragm (20) from being blocked.

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