A water purification system for Chinese mitten crab aquaculture

Abstract

The invention relates to the field of aquaculture treatment, and discloses a water purification system for aquaculture of Chinese mitten crabs. The system comprises an execution box, the upper side of which is connected to a breeding pond, and an execution mechanism connected to the middle of the breeding pond; a tilting box 1, which is fixedly connected to the bottom of the breeding pond, and a medicine box connected to the breeding pond is provided between the two tilting boxes 1; a purification mechanism, which is provided in the execution box, the purification mechanism is connected to the tilting box 1, and one side output end of the purification mechanism is connected to the execution mechanism. The system can stably perform multiple circulation treatments to ensure the stability of the water body, and can perform oxygen flushing during the treatment process, and then circulate the water body to ensure oxygen supply while reducing the generation of water bubbles and reducing external disturbances. At the same time, bulk feed can be separated and recovered, reducing raw material waste and saving aquaculture costs.

Description

Technical Field

[0001] The present invention relates to the field of aquaculture treatment, in particular to a water purification system for aquaculture of Chinese mitten crabs. Background Art

[0002] The Chinese mitten crab is widely distributed, found in provinces along the Bohai, Yellow, and East China Seas. It is particularly abundant along the Yangtze River, from Chongming to eastern Hubei. It burrows in the muddy banks of rivers, lakes, and ponds, hiding during the day and emerging at night. It feeds on animal carcasses and grains. Intensive captive rearing is now also practiced indoors to ensure high yields and quality, achieving higher production value.

[0003] During artificial breeding, due to the lack of other links in the ecosystem, eutrophication of the water body is likely to occur during the breeding process, resulting in water pollution and affecting the growth of crabs. It is necessary to circulate the water body to ensure its stability. The existing treatment method generally adopts a circulating filtration method, but the overall circulation is relatively simple, and the uneaten feed cannot be separated, which increases the feeding cost. In addition, a large number of bubbles are easily generated during the circulation process, affecting the oxygen content of the water body and other physical factors, affecting the growth environment of the crabs. Summary of the Invention

[0004] In order to solve the technical problem of poor water treatment, the present invention provides a water purification system for Chinese mitten crab aquaculture.

[0005] The present invention is implemented by the following technical solution: a water purification system for Chinese mitten crab aquaculture, comprising: an execution box, the upper side of which is connected to a breeding pond, and the middle of the breeding pond is connected to an execution mechanism; a tilting box 1, which is fixedly connected to the bottom of the breeding pond, and a medicine box connected to the breeding pond is arranged between the two tilting boxes 1; a purification mechanism, which is arranged in the execution box, the purification mechanism is connected to the tilting box 1, and one side output end of the purification mechanism is connected to the execution mechanism.

[0006] As a further improvement of the above scheme, the purification mechanism includes: a leakage hole, one end of which is connected to the bottom of the breeding pond, and the other end of the leakage hole is connected to a central box located in the execution box; a pumping unit one, which is arranged in the execution box, the input end of the pumping unit is connected to the central box, and the output end of the pumping unit is connected to the separation unit located in the execution box; a pumping unit two, which is arranged in the execution box, the input end of the pumping unit two is connected to the separation unit, and the output end of the pumping unit two is connected to the air supply unit located in the middle of the execution box, and the air supply unit is connected to the actuator.

[0007] As a further improvement of the above scheme, the pumping unit 1 includes: a functional box, which is fixedly connected to the execution box, and a mixing chamber is provided in the functional box; an extraction pump 3, which is fixedly connected to the functional box, and the output end of the extraction pump 3 extends into the mixing chamber; an air pump 1, which is fixedly connected to the functional box, and the output end of the air pump 1 extends into the mixing chamber; a guide tube 2, one end of which is connected to the mixing chamber, and the other end is connected to the central box; a guide tube 1, one end of which is connected to the mixing chamber, and the other end is connected to the separation unit.

[0008] As a further improvement of the above scheme, the separation unit includes: an operating box, which is fixedly connected to the execution box, and an extraction chamber and a filter 2 are provided in the operating box. One end of the guide pipe 2 extends into the extraction chamber, and a plurality of sewage pumps 2 are fixedly connected to the extraction chamber, and the output end of the sewage pump 2 is connected to the lifting pipe; a support frame, which is provided with multiple groups, each group has two support frames, and a connecting column is connected between the two support frames in each group, the support frame at the bottom is fixedly connected to the operating box, and the support frame at the top is fixedly connected to the screen plate, the screen plate is located below the lifting pipe, and the bottom of one side of the screen plate is connected to the discharge pipe 2 extending to the outside of the execution box; a power assembly, which is fixedly connected to the operating box, and the output end of the power assembly is transmission-connected to a flywheel, and one side of the flywheel is rotatably connected to a swing rod rotatably connected to the screen plate; a sewage pump 3, which is fixedly connected to the operating box, and the output end of the sewage pump 3 is connected to the filter 2, one side of the filter 2 is connected to the discharge pipe 3 extending to the outside of the execution box, and the side of the filter 2 away from the discharge pipe 3 is connected to the guide pipe 4 connected to the pumping unit 2.

[0009] As a further improvement of the above scheme, the pumping unit 2 includes: a distinction box 1, which is fixedly connected in the execution box, the distinction box 1 is connected to the guide pipe 4, and a sewage pump 1 is fixedly connected in the distinction box 1; a filter 1, which is fixedly connected in the distinction box 1, the output end of the sewage pump 1 is connected to the filter 1, one side of the filter 1 is connected to the discharge pipe 1, the other end of the discharge pipe 1 extends to the outside of the execution box, and one side of the filter 1 is connected to the guide pipe 3 connected to the air supply unit.

[0010] As a further improvement of the above scheme, the air supply unit includes: a distinction box 2, which is fixedly connected to the execution box, and multiple air pumps 2 are fixedly connected to the distinction box 2, and the output end of the air pump 2 is connected to the air supply pipe; a mixing cylinder, which is fixedly connected in the middle of the distinction box 2, one end of the guide pipe 3 extends into the mixing cylinder, and one end of the air supply pipe extends into the mixing cylinder.

[0011] As a further improvement of the above scheme, the actuator includes: a return pipe, one end of which is connected to the mixing cylinder, the top of the return pipe is rotatably connected to a rotating tube, and a follower ring located above the medicine box is provided on the outside of the rotating tube; a mixing cylinder, which is connected to the top of the rotating tube, the upper side of the mixing cylinder is connected to an extraction pump 1, and the input end of the extraction pump 1 is connected to a storage box; a conducting pipe, which is equally divided into multiple parts, one end of the conducting pipe is fixedly connected to the mixing cylinder, the other end of the conducting pipe is fixedly connected to a mounting sleeve, and one side of the mounting sleeve is fixedly connected to a slow-release box and an extension pipe; a sleeve ring 1, which is provided in multiple groups, and the sleeve ring is connected to the outer wall of the conducting pipe, and the conducting pipe is provided with multiple air holes that are connected to the sleeve ring 1, the bottom of the sleeve ring 1 is connected to the telescopic tube, the bottom of the telescopic tube is connected to the floating bar, and the bottom of the floating bar is connected to the follower plate.

[0012] As a further improvement of the above scheme, an inlet hole is provided at the top of the tilting box 1, the inlet hole is connected to a buffer sleeve located in the tilting box 1, one side of the buffer sleeve is fixedly connected to a filter plate located in the tilting box 1, and one side of the filter plate is connected to a discharge pipe 4 connected to the central box.

[0013] As a further improvement of the above scheme, storage chambers are symmetrically arranged in the medicine box, and an extraction pump 2 is connected to the storage chamber. The output end of the extraction pump 2 is connected to a socket ring 2 which is socketed with the return pipe, and one of the storage chambers is connected to a quantitative tube connected to the functional box.

[0014] As a further improvement of the above solution, a retaining ring is connected to the execution box, a discharge pipe is connected to one side of the retaining ring, and a vent hole is provided on the execution box.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the mutual cooperation between multiple devices, multiple circulation treatments can be carried out stably to ensure the stability of the water body. In the process of treatment, oxygen can be flushed and the water body circulated to ensure oxygen supply while reducing the generation of bubbles and external disturbances. At the same time, large pieces of feed can be separated and recycled to reduce the waste of raw materials and save breeding costs.

[0017] 2. Through the mutual cooperation between multiple devices, it is convenient to add medicines, reduce manual maintenance, and at the same time reduce the overall operating noise, ensure the crab breeding environment, reduce wastewater discharge, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 It is a schematic diagram of the actuator structure;

[0021] Figure 4 It is a schematic diagram of the purification mechanism structure;

[0022] Figure 5 Schematic diagram of the separation unit structure;

[0023] Figure 6 It is a schematic diagram of the main view of the separation unit;

[0024] Figure 7 It is a schematic diagram of the local structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the medicine box structure.

[0026] Description of main symbols:

[0027] 01. Execution box; 02. Breeding pond; 03. Drain hole; 04. Retaining ring; 05. Floating strip; 06. Telescopic tube; 07. Slow-release box; 08. Extension tube; 09. Socket ring 1; 10. Conducting tube; 11. Storage box; 12. Extraction pump 1; 13. Mixing cylinder; 14. Mounting sleeve; 15. Inlet hole; 16. Tilt box 1; 17. Follower plate; 18. Follower ring; 19. Rotating pipe; 20. Discharge pipe 1; 21. Discharge pipe 2; 22. Discharge pipe 3; 23. Discharge pipe 4; 24. Medicine box; 25. Filter plate; 26. Buffer sleeve; 27. Addition pipe; 28. Return pipe; 29. ​​Extraction pump 2; 30. Socket ring 2; 31. Storage chamber; 32. Metering tube; 33. Function box; 34. Extraction pump 3; 35. Diversion tube 1; 36. Mixing chamber; 37. Air pump 1; 38. Diversion tube 2; 39. Concentration box; 40. Air pump 2; 41. Mixing tube; 42. Diversion tube 3; 43. Operation box; 44. Diversion tube 4; 45. Sewage pump 1; 46. Filter 1; 47. Differentiation box 1; 48. Differentiation box 2; 49. Sewage pump 2; 50. Extraction chamber; 51. Lifting pipe; 52. Support frame; 53. Screening plate; 54. Filter 2; 55. Sewage pump 3; 57. Swing rod; 58. Flywheel; 59. Connecting column; 60. Power assembly. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] Example:

[0030] Please combine Figure 1 - Figure 8A water purification system for Chinese mitten crab aquaculture includes: an execution box 01, the upper side of which is connected to a breeding pool 02, and an execution mechanism is connected in the middle of the breeding pool 02. The execution box 01 supports the bottom and defines the functional device. The breeding pool 02 is a breeding pool for the main body, and the execution mechanism is used to supply air and clear bubbles.

[0031] The tilting box 16 is fixedly connected to the bottom of the culture pond 02. A medicine box 24 connected to the culture pond 02 is provided between the two tilting boxes 16. The tilting box 16 cooperates with the medicine box 24 to guide the flow, so that the solid impurities are concentrated at the bottom of the culture pond 02 by gravity, thereby ensuring the filtration work;

[0032] The purification mechanism is arranged in the execution box 01, the purification mechanism is connected to the tilt box 16, and one side output end of the purification mechanism is connected to the execution mechanism. The purification mechanism performs purification work and cooperates with the execution mechanism to work at the same time.

[0033] The purification mechanism includes: a drain hole 03, one end of which is connected to the bottom of the breeding pond 02, and the other end of the drain hole 03 is connected to the central box 39 located in the execution box 01. The drain hole 03 guides the water flow into the central box 39 for temporary storage;

[0034] Pumping unit 1 is arranged in the execution box 01. The input end of the pumping unit is connected to the central box 39, and the output end of the pumping unit is connected to the separation unit located in the execution box 01. The pumping unit 1 pumps to divert the water flow, and the separation unit performs subsequent separation and filtration;

[0035] The pumping unit 2 is arranged in the execution box 01. The input end of the pumping unit 2 is connected to the separation unit, and the output end of the pumping unit 2 is connected to the air supply unit located in the middle of the execution box 01. The air supply unit is connected to the actuator. The pumping unit 2 pumps again to conduct the water flow, and the air supply unit supplies air to increase the oxygen inside the breeding pond 02.

[0036] Pumping unit 1 includes:

[0037] Function box 33 is fixedly connected to execution box 01. A mixing chamber 36 is provided in function box 33. Function box 33 is limited and mixing chamber 36 is used for centralized buffering to ensure water flow.

[0038] Extraction pump three 34, which is fixedly connected to the function box 33, and the output end of the extraction pump three 34 extends into the mixing chamber 36. The extraction pump three 34 pumps to add the powder or other additives on one side of the function box 33;

[0039] Air pump 1 37 is fixedly connected to the function box 33. The output end of air pump 1 37 extends into the mixing chamber 36. Air pump 1 37 pumps the gas in the execution box 01 into the mixing chamber 36, disturbing the water flow and facilitating the subsequent separation work.

[0040] The second flow guide pipe 38 has one end connected to the mixing chamber 36 and the other end connected to the centralizing tank 39. The second flow guide pipe 38 is connected so that the water in the centralizing tank 39 enters the mixing chamber 36 through the second flow guide pipe 38, thereby achieving diversion.

[0041] The flow guide tube 1 35 has one end connected to the mixing chamber 36 and the other end connected to the separation unit. The flow guide tube 1 35 is connected to realize the conduction of water flow.

[0042] The separation unit includes:

[0043] The operation box 43 is fixedly connected to the execution box 01. The operation box 43 is provided with an extraction chamber 50 and a second filter 54. One end of the second diversion pipe 38 extends into the extraction chamber 50. A plurality of second sewage pumps 49 are fixedly connected to the extraction chamber 50. The output end of the second sewage pump 49 is connected to a lifting pipe 51. The operation box 43 provides limited support. The extraction chamber 50 temporarily stores water. The second filter 54 performs filtration and separation. The second sewage pump 49 extracts water, so that the water in the extraction chamber 50 is ejected through the lifting pipe 51 to guide the water flow.

[0044] The support frame 52 is provided with multiple groups, each group has two support frames 52, and a connecting column 59 is connected between the two support frames 52 in each group. The support frame 52 at the bottom is fixedly connected to the operation box 43, and the support frame 52 at the top is fixedly connected to the screening plate 53, which is located below the lifting pipe 51. The bottom of one side of the screening plate 53 is connected to the discharge pipe 21 extending to the outside of the execution box 01. The support frame 52 provides limited support, and at the same time, the middle axis of the support frame 52 rotates relative to the outer frame, so that the two support frames 52 in a group can be relatively displaced. A plurality of filter holes are provided on the screening plate 53 for corresponding filtering, and the discharge pipe 21 leads the filtered feed out to facilitate subsequent processing;

[0045] The power assembly 60 is fixedly connected to the operation box 43. The output end of the power assembly 60 is connected to the flywheel 58. One side of the flywheel 58 is rotatably connected to the swing rod 57 rotatably connected to the screening plate 53. The power assembly 60 outputs power, thereby driving the flywheel 58 to rotate, causing the swing rod 57 to swing, and then causing the screening plate 53 to swing, disturbing the sewage transported by the lifting pipe 51 on the screening plate 53, thereby achieving filtration;

[0046] Sewage pump three 55 is fixedly connected in the operation box 43. The output end of sewage pump three 55 is connected to filter two 54. One side of filter two 54 is connected to discharge pipe three 22 extending to the outside of execution box 01. The side of filter two 54 away from discharge pipe three 22 is connected to guide pipe four 44 connected to pumping unit two. After being pumped by sewage pump three 55, the sewage filtered at the bottom of operation box 43 enters filter two 54, and then undergoes secondary filtration by filter two 54, so that the water enters pumping unit two through guide pipe four 44. At the same time, the filtered impurities are discharged regularly through discharge pipe three 22.

[0047] Pumping unit 2 includes:

[0048] A distinction box 47 is fixedly connected to the execution box 01. The distinction box 47 is connected to the guide pipe 44. A sewage pump 45 is fixedly connected to the distinction box 47. The distinction box 47 is used for limiting and storing water, and the sewage pump 45 is used for pumping to ensure the flow of water.

[0049] Filter 1 (46) is fixedly connected in the differentiation box (47). The output end of the sewage pump (45) is connected to the filter (46). One side of the filter (46) is connected to the discharge pipe (20). The other end of the discharge pipe (20) extends to the outside of the execution box (01). One side of the filter (46) is connected to the guide pipe (3) (42) connected to the air supply unit. The filter (46) performs further filtration. The filtered water flows through the guide pipe (3) (42). The filtered impurities are regularly discharged through the discharge pipe (20).

[0050] The air supply unit includes:

[0051] The second distinguishing box 48 is fixedly connected to the execution box 01. A plurality of air pumps 40 are fixedly connected to the second distinguishing box 48. The output end of the air pump 40 is connected to the air supply pipe. The air pump 40 pumps the external gas into the mixing tube 41.

[0052] The mixing cylinder 41 is fixedly connected to the middle of the distinguishing box 2 48 , one end of the guide tube 3 42 extends into the mixing cylinder 41 , and one end of the air supply pipe extends into the mixing cylinder 41 . The mixing cylinder 41 is concentrated so that water and gas are subsequently transferred through the return pipe 28 .

[0053] The implementing agencies include:

[0054] The return pipe 28 has one end connected to the mixing cylinder 41. The top of the return pipe 28 is rotatably connected to the rotating pipe 19. The outer side of the rotating pipe 19 is provided with a follower coil 18 located above the medicine box 24. The return pipe 28 conducts the fluid, and the follower coil 18 can provide auxiliary fluid conduction. The follower coil 18 and the rotating pipe 19 are in conduction to conduct the corresponding fluid flow.

[0055] The mixing drum 13 is connected to the top of the rotating tube 19. The upper side of the mixing drum 13 is connected to the extraction pump 12. The input end of the extraction pump 12 is connected to the storage box 11. The mixing drum 13 performs mixing. The storage box 11 stores medicines that can be added to the water body. The extraction pump 12 pumps the medicines, so that the medicines in the storage box 11 are mixed in the mixing drum 13 for subsequent delivery.

[0056] The conducting tube 10 is provided with a plurality of equal parts. One end of the conducting tube 10 is fixedly connected to the mixing cylinder 13, and the other end of the conducting tube 10 is fixedly connected to the mounting sleeve 14. One side of the mounting sleeve 14 is fixedly connected to the slow-release box 07 and the extension tube 08. The conducting tube 10 is used for conduction and support, the slow-release box 07 can assist in slow release, so that a certain amount of addition is made, the mounting sleeve 14 is used for centralized buffering, and the extension tube 08 is used for subsequent diversion;

[0057] The sleeve ring 09 is provided with multiple groups. The sleeve ring 09 is sleeved on the outer wall of the conducting tube 10. The conducting tube 10 is provided with multiple air holes that are connected to the sleeve ring 09. The bottom of the sleeve ring 09 is connected to the telescopic tube 06, the bottom of the telescopic tube 06 is connected to the floating bar 05, and the bottom of the floating bar 05 is connected to the follower piece 17. The sleeve ring 09 is connected and conducted, the telescopic tube 06 can be extended and retracted to adapt to changes in the water surface, the floating bar 05 floats on the water surface, and the follower piece 17 is provided with multiple through holes for fluid conduction. The follower piece 17 is provided with multiple conical protrusions to break bubbles.

[0058] An inlet hole 15 is provided at the top of the tilting box 16, and the inlet hole 15 is connected to a buffer sleeve 26 located in the tilting box 16. One side of the buffer sleeve 26 is fixedly connected to a filter plate 25 located in the tilting box 16. One side of the filter plate 25 is connected to a discharge pipe 23 connected to the central box 39. The inlet hole 15 can allow small crabs to pass through. When working, the small crabs enter the tilting box 16 and hide, thereby reducing possible losses during filtration.

[0059] A storage chamber 31 is symmetrically arranged in the medicine box 24, and an extraction pump 29 is connected to the storage chamber 31. The output end of the extraction pump 29 is connected to a sleeve ring 230 that is sleeved with the return pipe 28. One of the storage chambers 31 is connected to a quantitative tube 32 connected to the function box 33. The storage chamber 31 stores medicines, and at the same time, according to work needs, the medicines can be pumped by the extraction pump 29 into the sleeve ring 230, further enter the return pipe 28, move along the fluid, and be added subsequently.

[0060] The execution box 01 is connected to a retaining ring 04, one side of which is connected to a discharge pipe. A vent is provided on the execution box 01. The retaining ring 04 provides surrounding protection to reduce water overflow. The discharge pipe performs regular discharge and the vent ensures gas circulation.

[0061] The implementation principle of the embodiment of this application is:

[0062] During operation, crabs are cultured in the breeding pond 02. During the breeding process, crabs are fed and metabolized. Metabolites enter the water body, which makes the water body eutrophic after a certain period of time. At this time, the valve on the drain hole 03 is opened to allow the water in the breeding pond 02 to enter the collection box 39 through the drain hole 03 for collection. The solid waste is concentrated at the bottom of the breeding pond 02 by gravity, making the collection and discharge faster and more stable.

[0063] The liquid entering the central box 39 then flows into the mixing chamber 36 through the guide pipe 38 under the action of gravity. The guide pipe 38 is connected to a one-way valve to prevent the fluid from flowing back. After entering the mixing chamber 36, the liquid enters the operation box 43 through the guide pipe 35, and then is pumped by the sewage pump 49, and sprayed onto the screening plate 53 through the lifting pipe 51. The synchronous power component 60 works, thereby rotating the flywheel 58, driving the swing rod 57 to swing, thereby causing the screening plate 53 to shake, speeding up the screening, and larger feed is intercepted on the screening plate 53, and then discharged through the discharge pipe 21. The smaller debris, excrement, residue, etc. fall to the bottom of the operating box 43, and are then extracted by the sewage pump three 55 and enter the filter two 54 for re-filtration. After filtering, the sewage enters the distinction box one 47, and is then pumped by the sewage pump one 45 and filtered again by the filter one 46, and enters the mixing cylinder 41 through the guide pipe three 42, and further passes through the follower ring 18 and the rotating tube 19, enters the mixing cylinder 13, and further passes through the conducting pipe 10, the sleeve ring one 09, the telescopic tube 06, the floating bar 05, and the follower plate 17 to re-enter the water body for circulation.

[0064] During the circulation process, the corresponding flocculants, disinfectants or other required medicines can be filled in the medicine box 24 as needed. When necessary, they can be pumped out through the extraction pump 29 and then enter the return pipe 28 with fluid through the sleeve ring 2 30 for addition. The medicine can also be sent to the functional box 33 through the quantitative tube 32 and then pumped out through the extraction pump 3 34 for preliminary addition. When the fluid flows, the substance in the storage box 11 can be entered into the mixing barrel 13 through the extraction pump 1 12 as needed, and then added through the guide pipe 10 and the follower plate 17 along the flow of the internal fluid. At the same time, the slow-release agent in the slow-release box 07 can enter the fluid through the installation sleeve 14 for slow release to meet the needs of work.

[0065] During the treatment process, air pump 1 37 can be used for preliminary aeration to pressurize the fluid and provide a certain disturbance, so as to separate the larger particles that may be stuck together and ensure subsequent separation. At the same time, air pump 2 40 is used to pump gas into the mixing tube 41 to supplement oxygen, avoid hypoxia in the water, and ensure subsequent breeding.

[0066] During the water circulation process, the thrust of the fluid flow causes the entire rotating tube 19 to rotate, and further through transmission, drives the extension tube 08 and the floating bar 05 to rotate. The floating bar 05 floats on the water surface and collides with the foam. At the same time, the follower piece 17 assists in removing the foam. At the same time, the water body is disturbed during the rotation process, and the oxygen content of the water body is increased. The follower piece 17 is located at the bottom of the water. During the circulation process, the water flow impact is reduced, the noise and bubbles are reduced, and at the same time, the stable and uniform supply of medicines can be guaranteed.

[0067] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A water purification system for Chinese mitten crab aquaculture, characterized in that: include: An execution box, the upper side of which is connected to a breeding pool, and the middle of the breeding pool is connected to an execution mechanism; A tilting box 1 is fixedly connected to the bottom of the culture pond, and a medicine box connected to the culture pond is provided between the two tilting boxes 1; A purification mechanism is provided in the execution box, the purification mechanism is connected to the tilt box, and one output end of the purification mechanism is connected to the execution mechanism; The purification mechanism comprises: A drain hole, one end of which is connected to the bottom of the breeding pond, and the other end of which is connected to a centralizing box located in the execution box; A pumping unit 1 is provided in the execution box, the input end of the pumping unit is connected to the central box, and the output end of the pumping unit is connected to the separation unit located in the execution box; A second pumping unit is provided in the execution box, wherein the input end of the second pumping unit is connected to the separation unit, and the output end of the second pumping unit is connected to the air supply unit located in the middle of the execution box, and the air supply unit is connected to the actuator; The pumping unit 1 comprises: The function box is fixedly connected to the execution box and is provided with a mixing chamber; Extraction pump three is fixedly connected to the function box, and the output end of the extraction pump three extends into the mixing chamber; Air pump 1 is fixedly connected to the function box, and the output end of air pump 1 extends into the mixing chamber; A second flow guide pipe, one end of which is connected to the mixing chamber and the other end is connected to the centralizing box; a flow guide tube 1, one end of which is connected to the mixing chamber and the other end of which is connected to the separation unit; The separation unit comprises: An operation box is fixedly connected to the execution box, wherein an extraction chamber and a second filter are provided in the operation box, one end of the first flow guide pipe extends into the extraction chamber, a plurality of second sewage pumps are fixedly connected to the extraction chamber, and the output end of the second sewage pump is connected to a lifting pipe; The support frame is provided with multiple groups, each group has two support frames, and a connecting column is connected between the two support frames in each group. The support frame at the bottom is fixedly connected to the operation box, and the support frame at the top is fixedly connected to the screen plate, and the screen plate is located below the lifting pipe. The bottom of one side of the screen plate is connected to a discharge pipe 2 extending to the outside of the execution box; A power assembly is fixedly connected to the operating box, wherein the output end of the power assembly is transmission-connected to a flywheel, and one side of the flywheel is rotationally connected to a swing rod rotationally connected to the screening plate; Sewage pump 3 is fixedly connected to the operating box, the output end of sewage pump 3 is connected to filter 2, one side of filter 2 is connected to discharge pipe 3 extending to the outside of the actuator box, and the side of filter 2 away from discharge pipe 3 is connected to guide pipe 4 connected to pumping unit 2; The pumping unit 2 includes: A distinction box 1 is fixedly connected to the execution box, the distinction box 1 is connected to the diversion pipe 4, and a sewage pump 1 is fixedly connected to the distinction box 1; Filter 1 is fixedly connected to the first distinguishing box. The output end of the first sewage pump is connected to the first filter. One side of the first filter is connected to the first discharge pipe. The other end of the first discharge pipe extends to the outside of the execution box. One side of the first filter is connected to the third guide pipe connected to the air supply unit. The air supply unit comprises: The second distinguishing box is fixedly connected to the execution box. A plurality of air pumps are fixedly connected to the second distinguishing box. The output end of the air pump is connected to the air supply pipe. A mixing cylinder is fixedly connected to the middle of the second distinguishing box, one end of the flow guide tube third extends into the mixing cylinder, and one end of the air supply tube extends into the mixing cylinder; The executive mechanism comprises: A reflux pipe, one end of which is connected to the mixing cylinder, the top end of which is rotatably connected to a rotating pipe, and a follower ring located above the medicine box is provided on the outer side of the rotating pipe; A mixing cylinder connected to the top of the rotating tube, wherein the upper side of the mixing cylinder is connected to an extraction pump 1, and the input end of the extraction pump 1 is connected to a storage box; The conducting tubes are provided in multiple equal parts, one end of the conducting tubes is fixedly connected to the mixing barrel, the other end of the conducting tubes is fixedly connected to the mounting sleeve, and one side of the mounting sleeve is fixedly connected to the slow-release box and the extension tube; The sleeve ring 1 is provided with multiple groups. The sleeve ring is connected to the outer wall of the conducting tube. The conducting tube is provided with multiple air holes that are connected to the sleeve ring 1. The bottom of the sleeve ring 1 is connected to the telescopic tube, the bottom of the telescopic tube is connected to the floating bar, and the bottom of the floating bar is connected to the moving plate.

2. A water purification system for Chinese mitten crab aquaculture according to claim 1, characterized in that: An inlet hole is provided at the top of the tilting box 1, and the inlet hole is connected to a buffer sleeve located in the tilting box 1. One side of the buffer sleeve is fixedly connected to a filter plate located in the tilting box 1, and one side of the filter plate is connected to a discharge pipe 4 connected to the central box.

3. A water purification system for Chinese mitten crab aquaculture according to claim 1, characterized in that: The medicine box is symmetrically provided with storage cavities, which are connected to two extraction pumps. The output end of the two extraction pumps is connected to a second sleeve ring which is sleeved with a return pipe. One of the storage cavities is connected to a quantitative tube connected to the functional box.

4. A water purification system for Chinese mitten crab aquaculture according to claim 1, characterized in that: The execution box is connected to a retaining ring, one side of the retaining ring is connected to a discharge pipe, and a vent hole is provided on the execution box.

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