CN113045114A

CN113045114A - Multistage sedimentation filtration breeding tail water treatment system

Info

Publication number: CN113045114A
Application number: CN202110269970.1A
Authority: CN
Inventors: 翟旭亮; 吴晓清; 李虹; 王波; 薛洋; 梅会清; 金素雅; 刘丹; 张利平
Original assignee: Chongqing Fisheries Technology Promotion Station
Current assignee: Chongqing Fisheries Technology Promotion Station
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-06-29

Abstract

The invention belongs to the technical field of water treatment, and provides a multistage sedimentation filtration culture tail water treatment system which comprises a biological hairbrush aeration tank, a placing rack and a biological hairbrush taking and placing device, wherein the placing rack comprises a plurality of horizontally arranged and mutually parallel cross beams, a plurality of hanging rods for hanging biological hairbrushes are arranged between two adjacent cross beams at intervals, two ends of each hanging rod are respectively provided with a chuck, and the biological hairbrush taking and placing device comprises: a gripping device for gripping the chuck; the lifting device is used for driving the grabbing device to do lifting motion; the transverse moving device is used for driving the lifting device to move in the horizontal plane along the direction parallel to the cross beam; and the longitudinal movement device is used for driving the lifting device to move in the horizontal plane along the direction vertical to the cross beam. The invention improves the convenience of the operation of taking and placing the biological brush and reduces the labor intensity of workers.

Description

Multistage sedimentation filtration breeding tail water treatment system

Technical Field

The invention relates to the technical field of water treatment, in particular to a multi-stage precipitation filtration culture tail water treatment system.

Background

Aquaculture is an important part of agricultural production, plays an important role in national economy, and is rapidly developed in the past fifty years. However, with the continuous expansion of the cultivation scale, the problems of frequent diseases, low product quality and the like are highlighted, ecological imbalance and environmental deterioration are caused by the occupation and consumption of a large amount of resources, and the development is greatly limited due to the limitation of technology and resources. Under the background, the development of the aquaculture industry to the factory is imperative.

In the process of industrial aquaculture, a large amount of toxic and harmful organic substances such as residual baits, excrement and the like and a large amount of toxic and harmful inorganic substances can be accumulated in the water body. In view of the above, it is necessary to regularly discharge tail water containing toxic and harmful substances during the industrial aquaculture process of aquatic products, so as to ensure the healthy growth of the aquaculture subjects. At present, aquaculture tail water is mainly treated by a multi-stage sedimentation filter tank, namely the aquaculture tail water sequentially passes through a natural sedimentation tank, a cobblestone filter tank, a ceramsite or volcanic stone filter tank, a biological brush aeration tank and a biological treatment tank to finally reach the water quality index of recycling and discharging, zero pollution or low pollution discharging of the tail water is realized, even water resources are recycled, and the influence on the surrounding environment is reduced.

In a biological brush aeration tank, a plurality of hanging rods are usually arranged on a steel frame in parallel, and a plurality of biological brushes are hung on each hanging rod. After a period of use, the biological brush needs to be removed for cleaning. At present, the operation of placing the hanging rod on which the biological brush is hung on a steel frame and taking the hanging rod off the steel frame is realized by entering workers into a biological brush aeration tank, so that the operation is inconvenient, and the labor intensity of the workers is high.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a multistage sedimentation filtration culture tail water treatment system to improve the convenience of biological brush taking and placing operation and reduce the labor intensity of workers.

In order to achieve the above object, the present invention provides a multistage sedimentation filtration aquaculture tail water treatment system, which comprises a natural sedimentation tank, a cobblestone filter tank, a ceramsite or vesuvianite filter tank, a biological brush aeration tank and a biological treatment tank, which are sequentially arranged along a water flow direction, wherein a placing rack for placing biological brushes is arranged in the biological brush aeration tank, the placing rack comprises a plurality of horizontally arranged and mutually parallel cross beams, a plurality of hanging rods for hanging biological brushes are arranged between two adjacent cross beams at intervals, two ends of each hanging rod are respectively provided with a chuck, the system further comprises a biological brush taking and placing device arranged above the biological brush aeration tank, and the biological brush taking and placing device comprises:

a gripping device for gripping the chuck;

the lifting device is used for driving the grabbing device to do lifting motion;

the transverse moving device is used for driving the lifting device to move in a direction parallel to the cross beam in a horizontal plane; and

and the longitudinal movement device is used for driving the lifting device to move in the horizontal plane along the direction vertical to the cross beam.

Further, the grasping apparatus includes:

the first base is provided with a first accommodating cavity extending upwards from the bottom surface for a certain distance, a guide hole extending downwards from the top surface and communicated with the first accommodating cavity, and the lower end of the first base is provided with a conical surface;

the upper end of the first sliding block extends into the first accommodating cavity and slides in the first accommodating cavity;

the clamping jaws are distributed in the circumferential direction of the first sliding block, the upper ends of the clamping jaws are provided with contact surfaces which are kept in butt joint with the conical surface, the middle parts of the clamping jaws are hinged with the lower end of the first sliding block, and the lower ends of the clamping jaws are provided with hook parts used for hooking the chuck;

a first pressure spring having a tendency to swing the hook portion of the jaw outward around a hinge center line of the jaw;

the second base is arranged above the first base and is provided with a second accommodating cavity extending upwards from the bottom surface for a certain distance;

the upper end of the second sliding block extends into the second accommodating cavity and slides in the second accommodating cavity, and the lower end of the second sliding block is fixedly connected with the first base;

the first connecting rod is arranged in the guide hole in a sliding mode, the upper end of the first connecting rod is fixedly connected with the second base, and the lower end of the first connecting rod is fixedly connected with the first sliding block;

the electromagnet is arranged in the second accommodating cavity and is positioned above the second sliding block; and

and the second pressure spring is arranged in the second accommodating cavity and has a tendency of enabling the second sliding block to slide downwards.

Further, the lifting device includes:

a first base driven by the traverse device;

two lifting mechanisms are oppositely arranged on the first base;

the connecting structure is used for connecting the two lifting mechanisms so as to keep the two lifting mechanisms to work synchronously; and

the first motor is arranged on the first base and used for driving any one lifting mechanism;

the lifting mechanism comprises:

two gears which are rotatably arranged on the first base and are meshed with each other;

a spool, provided with one on each of the gears, which rotates coaxially with the gears; and

one end of the lifting rope is connected with the winding drum, and the other end of the lifting rope is connected with the top of a second base in the grabbing device;

the connecting structure comprises a second connecting rod, and two ends of the second connecting rod are respectively coaxially connected with the gears in the two lifting mechanisms;

the first motor is used for driving one gear in any one lifting mechanism to rotate.

Furthermore, elevating system still including rotate the leading wheel that sets up on the first base, the leading wheel is used for leading the lifting rope.

Further, the position of the guide wheel on the first base is adjustable.

Further, the traverse device includes:

a second base driven by the longitudinal movement device;

two first belt transmission mechanisms are oppositely arranged on the second base and comprise first transmission belts arranged along the transverse direction;

two first guide rails are oppositely arranged on the second base and are in one-to-one correspondence with the first belt transmission mechanisms;

the first mounting seat is fixedly connected with the first base and the first transmission belt;

the first traveling wheel is rotatably arranged on the first mounting seat and moves on the first guide rail;

a third link connecting the two first belt transmission mechanisms so as to synchronously rotate the two first belt transmission mechanisms; and

a second motor for driving any one of the first belt transmission mechanisms.

Further, the longitudinal movement device is respectively provided with one at two ends of the second base, and the longitudinal movement device comprises:

a third base;

the second belt transmission mechanism is arranged on the third base along the longitudinal direction and comprises a second transmission belt;

a second guide rail disposed on the third base in a longitudinal direction;

the second mounting seat is fixedly connected with the second base and the second transmission belt;

the second traveling wheel is rotatably arranged on the second base and moves on the second guide rail; and

a third motor for driving the second belt drive mechanism.

The invention has the beneficial effects that: the invention provides a multistage sedimentation filtration culture tail water treatment system, which is characterized in that the structure of a hanging rod is improved, namely chucks are arranged at two ends of the hanging rod to be matched with a gripping device to work, and then the gripping device, a lifting device, a transverse moving device and a longitudinal moving device are matched, so that the hanging rod and a biological brush hung on the hanging rod can be automatically transferred integrally, the convenience of taking and placing the biological brush is improved, and the labor intensity of workers is reduced.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of a multi-stage sedimentation filtration aquaculture tail water treatment system according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the rack and the biological brushes hanging thereon;

FIG. 3 is a perspective view of the gripping device, lifting device, traversing device and traversing device assembled together;

FIG. 4 is a half sectional view of the grasping device;

FIG. 5 is a schematic view of the gripping device gripping the chuck;

FIG. 6 is a front view of the lifting device and the gripping device assembled together;

FIG. 7 is a perspective view of a portion of the structure of the lifting device and the grasping device when assembled together;

reference numerals:

101. a natural sedimentation tank; 102. a cobble filtering tank; 103. a ceramsite or vesuvianite filtering tank; 104. a biological brush aeration tank; 105. a biological treatment tank;

201. a cross beam; 202. a stringer; 203. a hanging rod; 204. a chuck; 205. a biological brush;

30. a gripping device; 31. a first base; 311. a first accommodating chamber; 312. a guide hole; 313. a conical surface; 32. a first slider; 33. a claw; 331. a contact surface; 332. a hook part; 34. a first pressure spring; 35. a second base; 351. a second accommodating chamber; 352. a first mounting hole; 353. a second mounting hole; 354. a bolt; 36. a second slider; 37. a first link; 371. a jack; 38. an electromagnet; 39. a second pressure spring;

40. a lifting device; 41. a first base; 421. a gear; 422. a reel; 423. a lifting rope; 424. a guide wheel; 43. a second link; 44. a first motor; 45. a holding rod; 451. a rod portion; 452. a split ring;

50. a traversing device; 51. a second base; 52. a first belt drive mechanism; 53. a first guide rail; 54. a first mounting seat; 55. a first running wheel; 56. a third link; 57. a second motor;

60. a longitudinal moving device; 61. a third base; 62. a second belt drive mechanism; 63. a second guide rail; 64. a second mounting seat; 65. a second road wheel; 66. a third motor.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-7, the present embodiment provides a multi-stage sedimentation filtration aquaculture tail water treatment system, which comprises a natural sedimentation tank 101, a cobblestone filter tank 102, a ceramsite or vesuvianite filter tank 103, a biological brush aeration tank 104 and a biological treatment tank 105, which are sequentially arranged along the water flow direction.

The biological brush aeration tank 104 is internally provided with a placing rack for placing biological brushes, and the placing rack comprises a plurality of horizontally arranged and mutually parallel cross beams 201, longitudinal beams 202 arranged along the vertical direction and used for supporting the cross beams 201, and a plurality of hanging rods 203 arranged between two adjacent cross beams 201 at intervals and used for hanging the biological brushes 205. Two ends of the hanging rod 203 are respectively provided with a chuck 204, and the chucks 204 are fixedly connected with the hanging rod 203. A biological brush taking and placing device is arranged above the biological brush aeration tank 104, and comprises a gripping device 30, a lifting device 40, a transverse moving device 50 and a longitudinal moving device 60. The gripping device 30 is used for gripping the chuck 204, the lifting device 40 is used for driving the gripping device 30 to perform lifting movement, the traverse device 50 is used for driving the lifting device 40 to move in a horizontal plane along a direction parallel to the cross beam 201, and the longitudinal movement device 60 is used for driving the lifting device 40 to move in a horizontal plane along a direction perpendicular to the cross beam 201.

In this embodiment, the structure of the hanging rod 203 is improved, that is, the chucks 204 are arranged at the two ends of the hanging rod 203 to cooperate with the gripping device 30 to work, and then the gripping device 30, the lifting device 40, the transverse moving device 50 and the longitudinal moving device 60 are cooperated, so that the whole transfer of the hanging rod 203 and the biological brushes hung thereon can be automatically completed, the convenience of the biological brushes taking and placing operation is improved, and the labor intensity of workers is reduced.

In one embodiment, the gripping device 30 includes a first base 31, a first slider 32, a jaw 33, a first compression spring 34, a second base 35, a second slider 36, a first link 37, an electromagnet 38, and a second compression spring 39.

The first base 31 is generally cylindrical and has a first receiving cavity 311 extending upward from a bottom surface by a certain distance, and the first receiving cavity 311 is opened at a center of a bottom of the first base 31. It also has a guide hole 312 extending downward from the top surface and communicating with the first receiving cavity 311, preferably, the guide hole 312 is coaxially disposed with the first receiving cavity 311, and the lower end of the first base 31 is provided with a tapered surface 313.

The upper end of the first slider 32 extends into the first accommodating cavity 311 and slides in the first accommodating cavity 311, and the lower end of the first slider 32 is located outside the first accommodating cavity 311.

A plurality of claws 33 are distributed in the circumferential direction of the first slider 32, the upper ends of the claws 33 have abutting surfaces 331 which are kept abutting against the tapered surfaces 313, the middle parts of the claws 33 are hinged with the lower ends of the first slider 32, and the lower ends of the claws 33 have hook parts 332 for hooking the chuck 204.

The first pressure spring 34 tends to swing the hook portion 332 of the pawl 33 outward around the hinge center line of the pawl 33, and preferably, a first mounting hole 352 for mounting the first pressure spring 34 is provided at the lower end of the first slider 32, and one end of the first pressure spring 34 is inserted into the first mounting hole 352 and abuts against the bottom of the first mounting hole 352 while the other end abuts against the inside of the pawl 33.

The second base 35 is also generally cylindrical in shape, is disposed above the first base 31, and has a second receiving chamber 351 extending upward from the bottom surface by a certain distance, and preferably the second receiving chamber 351 is opened at the center of the bottom surface of the second base 35.

The upper end of the second slider 36 extends into the second accommodating chamber 351 and slides in the second accommodating chamber 351, and the lower end thereof is fixedly connected to the first base 31, and preferably, the second slider 36 is integrally connected to the first base 31.

The first connecting rods 37 are slidably disposed in the guiding holes 312 of the first base 31, the upper ends of the first connecting rods 37 are fixedly connected with the second base 35, the lower ends of the first connecting rods 37 are fixedly connected with the first sliding block 32, and the first sliding block 32 and the second base 35 are connected into a whole through the first connecting rods 37, preferably, the number of the first connecting rods 37 is two.

The electromagnet 38 is installed in the second accommodation chamber 351 and located above the second slider 36.

The second pressure spring 39 is disposed in the second accommodation chamber 351, and has an upper end abutting against the electromagnet 38 and a lower end abutting against the second slider 36, so that the second slider 36 tends to slide downward.

In this embodiment, when the electromagnet 38 is energized, the magnetic force of the electromagnet 38 attracts the second slider 36 upward, the second slider 36 drives the first base 31 to move upward together for a certain distance, in the process, the first compression spring 34 swings the jaws 33 outward, so that the jaws 33 are in the open state, and the chuck 204 can pass between the opened jaws 33. When the electromagnet 38 is powered off, the second sliding block 36 moves downwards under the action of the second compression spring 39, so as to drive the first base 31 to move downwards for a certain distance, and in the process that the first base 31 moves downwards, the tapered surface 313 on the first base 31 is always abutted to the upper ends of the clamping jaws 33, so that the clamping jaws 33 swing inwards, the clamping jaws 33 are in a contraction state, and the chuck 204 cannot pass through the clamping jaws 33, so that the chuck 204 positioned between the clamping jaws 33 can be hooked by the clamping jaws 33, and then under the action of the lifting device 40, the hanging rod 203 and the biological hair brush hung on the hanging rod can be lifted.

Preferably, a second mounting hole 353 is opened in the second base 35 in the vertical direction and a third mounting hole communicating with the second mounting hole 353 is opened in the horizontal direction, and a plug pin 354 inserted therein is provided in the third mounting hole. The upper end of the first link 37 is inserted into the second mounting hole 353, and an insertion hole 371 into which the plug 354 is inserted is formed at the upper end of the first link 37. After the insertion pin 354 is inserted into the insertion hole 371 of the first link 37, the first link 37 is fixedly connected to the second base 35, and the lower end of the first link 37 is preferably integrally connected to the first slider 32, so that the first link 37 is easily attached to and detached from the second base 35.

In one embodiment, the lifting device 40 includes a first base 41, a lifting mechanism, a connecting structure, and a first motor 44. The first base 41 is driven by the traverse device 50, and two lifting mechanisms are provided on the first base 41 so as to face each other. The connecting structure is used for connecting the two lifting mechanisms so as to ensure that the two lifting mechanisms keep synchronous work. The first motor 44 is installed on the first base 41 for driving any one of the elevating mechanisms.

The lifting mechanism includes a gear 421, a drum 422, and a lifting rope 423. Two gears 421 engaged with each other are rotatably provided on the first base 41. Each gear 421 is coaxially connected to one of the reels 422, and rotates in synchronization. The lifting ropes 423 are arranged in one-to-one correspondence with the winding drums 422, that is, the number of the lifting ropes 423 is two, one end of each lifting rope 423 is fixedly connected with the winding drum 422, and the other end of each lifting rope 423 is fixedly connected with the top of the second base 35 in one grabbing device 30. The two gears 421 rotate to finally drive the two lifting ropes 423 to be synchronously rolled or released.

The connecting structure includes a second connecting rod 43, and two ends of the second connecting rod 43 are respectively coaxially connected with two corresponding gears 421 of the two lifting mechanisms, so that the second connecting rod 43 enables the two lifting mechanisms to synchronously work. Either gear 421 of the two elevating mechanisms is driven by the first motor 44.

In this embodiment, adopt the elevating system of above-mentioned structure, the structure is compacter, and the demand to installation space is littleer in the vertical direction.

Preferably, the lifting device 40 further includes four retaining rods 45 disposed between two adjacent gripping devices 30, the four retaining rods 45 define a rectangle, the retaining rods 45 include a rod body 451 and open rings 452 located at two ends of the rod body 451, the radian of the open rings 452 is greater than 180 °, and the open rings 452 can be sleeved outside the second base 35 in a snap-fit manner. The four gripping devices 30 are not greatly shaken due to the movement of the lifting rope 423 during the lifting process by the holding rod 45, thereby improving the reliability of the gripping devices 30.

In one embodiment, the lifting mechanism further comprises a guide wheel 424 rotatably disposed on the first base 41, the guide wheel 424 being used for guiding the lifting rope 423. The guide wheel 424 is arranged, so that the size of the winding drum 422 or the gear 421 can be reduced on the premise that the distance between the two grabbing devices 30 is equal to the distance between the chucks 204 at the two ends of the hanging rod 203, and the structural design is more reasonable.

In one embodiment, the position of the guide wheel 424 on the first base 41 is adjustable. By changing the installation position of the guide wheel 424, the distance between the two grabbing devices 30 can be changed, so that the hanging rod 203 with different lengths can be adapted, and the application range is wider.

In one embodiment, the traverse device 50 includes a second base 51, a first belt drive 52, a first guide rail 53, a first mount 54, a first travel wheel 55, a third link 56, and a second motor 57.

The second base 51 is driven by the longitudinal moving device 60, two second bases 51 are oppositely arranged, the two second bases 51 are connected together through two first guide rails 53, and the two first guide rails 53 are arranged in parallel. Two first belt transmission mechanisms 52 are oppositely arranged between the two second bases 51, each first belt transmission mechanism 52 comprises a first transmission belt, and the first belt transmission mechanisms 52 and the first guide rails 53 are arranged in a one-to-one correspondence manner.

The first mounting seat 54 is fixedly connected with the first base 41 and the first driving belt. The first traveling wheel 55 is rotatably provided on the first mount 54 and moves on the first rail 53. The third link 56 connects the two first belt transmission mechanisms 52 so that the two first belt transmission mechanisms 52 rotate synchronously. A second motor 57 is mounted on the second base 51 for driving any one of the first belt transmission mechanisms 52.

In the present embodiment, the traversing device 50 with the above structure has a reasonable structural design and good reliability.

In one embodiment, one longitudinal moving device 60 is disposed at each end of the second base 51, and the longitudinal moving device 60 includes a third base 61, a second belt transmission mechanism 62, a second guide rail 63, a second mounting base 64, a second traveling wheel 65 and a third motor 66.

The third bases 61 are fixed on the ground or the biological brush aeration tank 104 through a frame, two third bases 61 are oppositely arranged, and the two third bases 61 are connected through a second guide rail 63 which is longitudinally arranged. A second belt drive 62 is longitudinally disposed on the third base 61 and includes a second drive belt. The second mounting seat 64 is fixedly connected with the second base 51 and the second transmission belt, and the second traveling wheel 65 is rotatably arranged on the second base 51 and moves on the second guide rail 63.

A third motor 66 is mounted on the third base 61 for driving the second belt transmission mechanism 62.

In the embodiment, the longitudinal moving device 60 with the above structure has reasonable structural design and good reliability.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides a multistage sedimentation filters breed tail water processing system, includes along natural sedimentation tank, cobblestone filtering ponds, haydite or vesuvianite filtering ponds, biological brush aeration tank and the biological treatment pond that rivers direction set gradually, be provided with the rack that is used for placing biological brush in the biological brush aeration tank, the rack includes many levels and the crossbeam that is parallel to each other, adjacent two the interval is provided with many pegs that are used for hanging biological brush between the crossbeam, its characterized in that: the both ends of peg are provided with a chuck respectively, still including setting up biological brush above the biological brush aeration tank is got and is put the device, biological brush is got and is put the device and includes:

a gripping device for gripping the chuck;

2. The multi-stage sedimentation filtration aquaculture tail water treatment system of claim 1, characterized in that: the gripping device comprises:

3. The multi-stage sedimentation filtration aquaculture tail water treatment system of claim 2, wherein: the lifting device comprises:

a first base driven by the traverse device;

two lifting mechanisms are oppositely arranged on the first base;

the lifting mechanism comprises:

4. The multi-stage sedimentation filtration aquaculture tail water treatment system of claim 3, wherein: the lifting mechanism further comprises a guide wheel rotatably arranged on the first base, and the guide wheel is used for guiding the lifting rope.

5. The multi-stage sedimentation filtration aquaculture tail water treatment system of claim 4, wherein: the position of the guide wheel on the first base is adjustable.

6. The multi-stage sedimentation filtration aquaculture tail water treatment system of claim 1, characterized in that: the traverse device includes:

a second base driven by the longitudinal movement device;

a second motor for driving any one of the first belt transmission mechanisms.

7. The multi-stage sedimentation filtration aquaculture tail water treatment system of claim 6, wherein: indulge and move the device and be in the both ends of second base are provided with one respectively, indulge and move the device and include:

a third base;

a second guide rail disposed on the third base in a longitudinal direction;

a third motor for driving the second belt drive mechanism.