Aquaculture wastewater treatment apparatus

Abstract

The application discloses a kind of aquaculture wastewater treatment equipment, including filtering mechanism, water inlet mechanism, backwashing mechanism, drive mechanism and residue discharge mechanism, filtering mechanism includes processing box and the filter plate being installed in the inside of processing box;Water inlet mechanism is set at the top of processing box, for when wastewater in rearing pond is introduced into processing box during work;Backwashing mechanism is installed in the inside of processing box and is located below filter plate, for when the bottom of filter plate is washed during work;Drive mechanism is installed on the outside of processing box and is transmission connection with backwashing mechanism, for when filter plate is blocked, drive backwashing mechanism to work;Residue discharge mechanism is set in processing box, for when the residue on the top of filter plate is too much and backwashing mechanism cannot work, residue on the top of filter plate is discharged in processing box, solve the problem that staff needs to clean or replace filter plate frequently, it is more troublesome.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to an aquaculture wastewater treatment device. Background Technology

[0002] As people's demand for aquatic food increases in their daily lives, more and more farmers are starting to engage in aquaculture. During the aquaculture process, aquatic organisms need to be raised in breeding ponds. After a long period of breeding, a lot of feed residue and aquatic excrement will remain in the breeding ponds. These residues and excrement will affect the water quality in the breeding ponds. In order to ensure the growth environment of aquatic organisms, the water in the breeding ponds needs to be treated regularly.

[0003] Current wastewater treatment equipment primarily cleans feed residues and feces from aquaculture ponds through sedimentation followed by sludge removal or filtration. However, the former is a lengthy process, while the latter requires frequent cleaning or replacement of the filter plates to prevent clogging, making the entire process quite complex. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Therefore, the purpose of this invention is to provide an aquaculture wastewater treatment device that replaces the traditional aquaculture wastewater treatment method, avoiding the troublesome problem of requiring staff to frequently clean or replace the filter plates.

[0006] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] An aquaculture wastewater treatment device, comprising:

[0008] A filtration mechanism, comprising a processing chamber and a filter plate installed inside the processing chamber;

[0009] A water inlet mechanism is located at the top of the treatment tank and is used to introduce wastewater from the breeding tank into the treatment tank during operation.

[0010] A backwashing mechanism is installed inside the treatment box and below the filter plate, and is used to rinse the bottom of the filter plate during operation;

[0011] A drive mechanism is installed on the outside of the processing box and is connected to the backwashing mechanism for driving the backwashing mechanism to work when the filter plate is clogged.

[0012] A slag discharge mechanism is installed inside the processing box to discharge the slag from the top of the filter plate into the processing box when there is too much slag on the top of the filter plate and the backwashing mechanism cannot work.

[0013] As a preferred embodiment of the aquaculture wastewater treatment equipment described in this invention, the water inlet mechanism includes a water pump installed on the top of the treatment tank and a water inlet pipe that is connected to the output end of the water pump via a conduit at the top and communicates with the inside of the treatment tank at the bottom.

[0014] As a preferred embodiment of the aquaculture wastewater treatment equipment of the present invention, the bottom of the side wall of the treatment tank is provided with a water outlet trough, and the bottom of the treatment tank is provided with a plurality of punch holes.

[0015] The backwashing mechanism includes a first lead screw installed inside the treatment box, a slide rod installed inside the treatment box and parallel to the first lead screw, an extrusion block located inside the treatment box with its two ends respectively sleeved on the first lead screw and the slide rod, and a water storage tank located at the bottom of the treatment box with an extrusion groove on its top surface. The extrusion groove corresponds to the extrusion block, and the top surface of the water storage tank has an open structure corresponding to the positions of the plurality of punch holes.

[0016] In a preferred embodiment of the aquaculture wastewater treatment equipment of the present invention, the filter plates are respectively sleeved on the first lead screw and the slide rod, and the texture of the first lead screw at the connection between the filter plate and the extrusion block is opposite.

[0017] As a preferred embodiment of the aquaculture wastewater treatment equipment of the present invention, the driving mechanism includes a drainage trough located outside the treatment tank and having an opening corresponding to the outlet trough, a damping plate located inside the drainage trough and having first connecting shafts on both sides, and a worm gear located inside the drainage trough and having one end passing through the side wall of the drainage trough and connected to the first lead screw. The inner wall of the drainage trough has connecting holes on both sides corresponding to the first connecting shaft, and a turbine gear meshing with the worm gear is sleeved on the first connecting shaft.

[0018] The outer side wall of the first connecting shaft is connected to a torsion spring, one end of which is connected to the side wall of the first connecting shaft and the other end of which is connected to the inner wall of the connecting hole.

[0019] In a preferred embodiment of the aquaculture wastewater treatment equipment of the present invention, the bottom of the first lead screw is connected to a first helical gear whose bottom is rotatably connected to the bottom of the inner wall of the treatment tank, and the side wall of the first helical gear is meshed with a second helical gear connected to the worm gear through a rotating shaft.

[0020] As a preferred embodiment of the aquaculture wastewater treatment equipment of the present invention, the top of the inner wall of the treatment tank is provided with a through groove communicating with the water inlet pipe, and a plurality of springs are provided on the side wall of the through groove along the circumferential direction. The bottom of the plurality of first springs is provided with a block corresponding to the through groove. A slag discharge groove is provided on the side wall of the treatment tank, and a cover plate is connected to the slag discharge groove through a rotating shaft. Torsion springs are connected to the rotating shaft side walls on both sides of the cover plate.

[0021] The slag discharge mechanism includes a second lead screw installed inside the processing box, a scraper sleeved on the second lead screw and corresponding to the slag discharge trough, and a drive assembly that drives the scraper to move along the lead screw when the backwashing mechanism can no longer work.

[0022] As a preferred embodiment of the aquaculture wastewater treatment equipment described in this invention, a water guide pipe is provided on the side wall of the inlet pipe.

[0023] The drive assembly includes a housing located on the side wall of the processing tank and having a water inlet on the side wall, a rotating blade rotatably connected to the side wall of the housing and located below the water inlet, and a second connecting shaft having a pulley at one end and passing through the side wall of the housing and connected to the second lead screw at the other end. The water inlet is connected to the end of the water guide pipe away from the water inlet pipe, and a baffle is provided on the top of the inner wall of the housing.

[0024] The side wall of the rotating blade has a pulley, and is connected to the pulley on the side wall of the second connecting shaft by a belt;

[0025] The second connecting shaft has a torsion spring with one end connected to the side wall of the second connecting shaft and the other end connected to the side wall of the housing.

[0026] As a preferred embodiment of the aquaculture wastewater treatment equipment described in this invention, the inner wall of the treatment tank is provided with a collection trough corresponding to the scraper on the side away from the slag discharge trough.

[0027] In a preferred embodiment of the aquaculture wastewater treatment equipment described in this invention, the side wall of the inlet pipe has a return pipe, which is located below the guide pipe.

[0028] The side wall of the housing is provided with an outlet connected to the end of the return pipe away from the inlet pipe. The outlet is equipped with an anti-backflow mechanism to prevent wastewater from flowing from one end of the guide pipe to the other end of the outlet.

[0029] Compared with the prior art, the beneficial effects of this invention are that, when the surface of the filter plate becomes clogged, the drive mechanism drives the backwashing mechanism to flush the bottom of the filter plate. When there is too much residue on the top surface of the filter plate and the backwashing mechanism can no longer work, it indicates that there is too much residue on the top of the filter plate. At this time, the residue on the top of the filter plate is discharged by the slag discharge mechanism, which replaces the traditional method of aquaculture wastewater treatment and avoids the troublesome problem of requiring staff to frequently clean or replace the filter plate. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0031] Figure 1 This is a schematic diagram of the structure of an aquaculture wastewater treatment device according to the present invention;

[0032] Figure 2 This is a structural exploded view of an aquaculture wastewater treatment device according to the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of an aquaculture wastewater treatment device of the present invention when the wastewater has not entered the treatment tank;

[0034] Figure 4 This is a schematic diagram of the structure of an aquaculture wastewater treatment device according to the present invention, showing the wastewater entering the treatment tank and being filtered.

[0035] Figure 5 This is a schematic diagram of the structure of a filter plate in an aquaculture wastewater treatment device of the present invention when the surface becomes clogged;

[0036] Figure 6 This is a schematic diagram of the slag discharge mechanism of a filter plate in an aquaculture wastewater treatment device of the present invention, which discharges slag when there is a lot of residue on the surface of the filter plate and the backwashing mechanism cannot work.

[0037] Figure 7 This is a schematic diagram of the drive mechanism and the first lead screw transmission connection of an aquaculture wastewater treatment device according to the present invention;

[0038] Figure 8This is a structural exploded view of the drive mechanism of an aquaculture wastewater treatment device according to the present invention;

[0039] Figure 9 This is a side sectional view of the casing of an aquaculture wastewater treatment device according to the present invention.

[0040] In the diagram: 100, filtration mechanism; 110, treatment box; 110a, water outlet tank; 110b, perforation; 110c, through groove; 110c-1, spring; 110c-2, plug; 110d, slag discharge tank; 110d-1, cover plate; 110e, collection tank; 120, filter plate; 200, water inlet mechanism; 210, water pump; 220, water inlet pipe; 220a, water guide pipe; 220b, return pipe; 300, backwashing mechanism; 310, first lead screw; 310a, first helical gear; 310a-1, second helical gear; 320, slide rod. ; 330, extrusion block; 340, water storage tank; 340a, extrusion groove; 400, drive mechanism; 410, drainage groove; 410a, connecting hole; 420, damping plate; 420a, first connecting shaft; 420b, turbine; 430, worm gear; 500, slag discharge mechanism; 510, second lead screw; 520, scraper; 530, drive assembly; 530a, housing; 530a-1, water inlet; 530a-2, water outlet; 530a-21, anti-backflow mechanism; 530a-3, baffle; 530b, rotating blade; 530c, second connecting shaft. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0043] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0044] This invention provides an aquaculture wastewater treatment device that replaces traditional aquaculture wastewater treatment methods, avoiding the troublesome problem of requiring staff to frequently clean or replace filter plates.

[0045] Figures 1-9 The diagram shown is a structural schematic of an aquaculture wastewater treatment device according to the present invention. Please refer to [link / reference]. Figures 1-9This article provides a detailed introduction to this type of aquaculture wastewater treatment equipment.

[0046] In some embodiments, the present invention discloses an aquaculture wastewater treatment device, the main body of which includes a filtration mechanism 100, a water inlet mechanism 200, a backwashing mechanism 300, a drive mechanism 400, and a slag discharge mechanism 500.

[0047] refer to Figures 3-7 The filtration mechanism 100 is used to filter wastewater. The filtration mechanism 100 includes a treatment tank 110 and a filter plate 120 installed inside the treatment tank 110. Wastewater enters the treatment tank 110 and the filter plate 120 filters out the residue in the wastewater.

[0048] In this embodiment, reference Figure 3 The bottom of the side wall of the treatment tank 110 is provided with a water outlet groove 110a for discharging the water filtered by the filter plate 120. The bottom of the treatment tank 110 is provided with multiple punch holes 110b for water in the water storage tank 340 to be ejected through the punch holes 110b when the squeezing block 330 squeezes the squeezing groove 340a during the operation of the backwashing mechanism 300.

[0049] In this embodiment, reference Figures 3-7 The filter plate 120 is respectively sleeved on the first lead screw 310 and the slide rod 320, and is used to drive the filter plate 120 to move up and down when the first lead screw 310 rotates.

[0050] In this embodiment, reference Figure 4 The top of the inner wall of the treatment tank 110 is provided with a through groove 110c that communicates with the inlet pipe 220, for allowing wastewater entering through the inlet pipe 220 to enter the treatment tank 110. Multiple springs 110c-1 are arranged circumferentially on the side wall of the through groove 110c, for stretching the block 110c-2 when the wastewater impacts the block 110c-2 through the through groove 110c. At the bottom of the multiple springs 110c-1 are corresponding block 110c-2s, for squeezing the block 110c-2 into the through groove 110c when the filter plate 120 moves upward to squeeze the residue. Within 10c, to prevent wastewater from continuing to flow down through the channel 110c, a slag discharge channel 110d is provided on the side wall of the treatment box 110. This channel facilitates the discharge of the residue squeezed out after the filter plate 120 is moved upward. A cover plate 110d-1 is connected to the slag discharge channel 110d via a rotating shaft to seal the slag discharge channel 110d. Torsion springs are connected to the rotating shaft side walls on both sides of the cover plate 110d-1 to keep the cover plate 110d-1 sealing the slag discharge channel 110d under normal conditions. When discharging slag, the residue pushes the cover plate 110d-1 open. After discharging slag, the cover plate 110d-1 rotates back to continue sealing the slag discharge channel 110d.

[0051] In this embodiment, reference Figure 6 The inner wall of the processing box 110 is provided with a receiving groove 110e corresponding to the scraper 520 on the side away from the slag discharge trough 110d. This groove is used to receive the scraper 520 and prevent the filter plate 120 from moving upward and squeezing the residue, thus affecting the upward movement of the filter plate 120.

[0052] refer to Figures 1-7 The water inlet mechanism 200 is used to pump wastewater from the breeding tank into the treatment tank 110. The water inlet mechanism 200 is located on the top of the treatment tank 110 and is used to introduce wastewater from the breeding tank into the treatment tank 110 during operation, and then filter the wastewater through the filter plate 120.

[0053] In this embodiment, the water inlet mechanism 200 includes a water pump 210 installed on the top of the treatment tank 110 and a water inlet pipe 220 whose top is connected to the output end of the water pump 210 through a conduit and whose bottom is connected to the inside of the treatment tank 110. When the water pump 210 is working, its input end is connected to the breeding tank through the conduit, and the wastewater in the breeding tank is pumped out into the water inlet pipe 220 and then into the treatment tank 110.

[0054] In this embodiment, reference Figures 1-7 The side wall of the inlet pipe 220 is provided with a water guide pipe 220a, which is used to allow wastewater to enter the shell 530a when the through groove 110c is blocked by the block 110c-2.

[0055] In this embodiment, reference Figures 1-7 The side wall of the inlet pipe 220 has a return pipe 220b for returning wastewater in the housing 530a to the inlet pipe 220. The return pipe 220b is located below the guide pipe 220a.

[0056] In this embodiment, reference Figure 2 The side wall of the housing 530a is provided with an outlet 530a-2 connected to the end of the return pipe 220b away from the inlet pipe 220. This outlet is used to introduce wastewater from the housing 530a into the return pipe 220b. The outlet 530a-2 is connected to an anti-backflow mechanism 530a-21 to prevent wastewater from flowing from one end of the guide pipe 220a to the other end of the outlet 530a-2. This mechanism is used to prevent wastewater from entering the housing 530a through the return pipe 220b after the block 110c-2 blocks the through groove 110c, thus preventing the blade 530b from being driven.

[0057] refer to Figures 3-7 The backwashing mechanism 300 is installed inside the treatment box 110 and located below the filter plate 120. It is used to rinse the bottom of the filter plate 120 during operation, thereby flushing out the residue that is clogging the holes of the filter plate 120 and preventing the filter plate 120 from being blocked.

[0058] In this embodiment, reference Figures 3-7 The backwashing mechanism 300 includes a first lead screw 310 installed inside the treatment tank 110, a slide rod 320 installed inside the treatment tank 110 and parallel to the first lead screw 310, a pressing block 330 located inside the treatment tank 110 and with its two ends respectively sleeved on the first lead screw 310 and the slide rod 320, and a water storage tank 340 located at the bottom of the treatment tank 110 and with a pressing groove 340a on its top surface. After the wastewater is filtered by the filter plate 120, some of the water enters the water storage tank 340 through the pressing groove 340a and the punch 110b. The pressing groove 340a corresponds to the pressing block 330. The top surface of the water storage tank 340 is open at the position corresponding to the multiple punches 110b. When the pressing block 330 moves toward the pressing groove 340a, it presses the water in the water storage tank 340, and then some of the water is ejected through the punch 110b from the bottom of the filter plate 120 for rinsing.

[0059] refer to Figure 3 The first lead screw 310 has opposite patterns at the connection between the filter plate 120 and the extrusion block 330, which is used to drive the extrusion block 330 and the filter plate 120 to move closer or further apart when the lead screw rotates.

[0060] refer to Figure 7 The bottom of the first lead screw 310 is connected to a first helical gear 310a, which is rotatably connected to the bottom of the inner wall of the processing box 110. The side wall of the first helical gear 310a is meshed with a second helical gear 310a-1, which is connected to the worm 430 through a rotating shaft. When the worm 430 rotates, it drives the second helical gear 310a-1 to rotate, thereby driving the first helical gear 310a and the first lead screw 310 to rotate.

[0061] refer to Figures 1-8 The drive mechanism 400 is installed on the outside of the processing box 110 and is connected to the backwash mechanism 300 for transmission. It is used to drive the backwash mechanism 300 to work when the filter plate 120 is blocked, thereby flushing the bottom of the filter plate 120 and preventing the filter plate 120 from being blocked.

[0062] In this embodiment, reference Figure 8The drive mechanism 400 includes a drain trough 410 located outside the treatment tank 110 and having an opening corresponding to the outlet trough 110a; a damping plate 420 located inside the drain trough 410 and having first connecting shafts 420a on both sides; and a worm gear 430 located inside the drain trough 410 and having one end passing through the side wall of the drain trough 410 and being driven by the first lead screw 310. Connecting holes 410a corresponding to the first connecting shafts 420a are opened on both sides of the inner wall of the drain trough 410. A turbine 420b meshing with the worm gear 430 is sleeved on the first connecting shaft 420a. When filtered water enters the drain trough 410 through the outlet trough 110a, it impacts the damping plate 420, causing the damping plate 420 to rotate. Figure 4 As shown, water is discharged normally. When the filter plate 120 is blocked and the water flow is small, the impact force of the water flow on the damping plate 420 decreases, and the damping plate 420 reverses, which in turn drives the first connecting shaft 420a to reverse, which in turn drives the turbine 420b and the worm gear 430 to rotate.

[0063] Among them, a torsion spring is connected to the outer wall of the first connecting shaft 420a, with one end connected to the side wall of the first connecting shaft 420a and the other end connected to the inner wall of the connecting hole 410a. It is used to generate a reversing force when the water flow impact force on the damping plate 420 decreases, thereby driving the damping plate 420 to reverse.

[0064] refer to Figures 3-7 The slag discharge mechanism 500 is installed inside the processing box 110. It is used to discharge the slag from the top of the filter plate 120 into the processing box 110 when there is too much slag on the top of the filter plate 120 and the backwashing mechanism 300 cannot work. It is also used to discharge the slag from the processing box 110 when there is too much slag on the top surface of the filter plate 120 and it needs to be cleaned.

[0065] In this embodiment, reference Figure 5 The slag discharge mechanism 500 includes a second lead screw 510 installed in the processing box 110, a scraper 520 sleeved on the second lead screw 510 and corresponding to the slag discharge trough 110d, and a drive assembly 530 that drives the scraper 520 to move along the lead screw when the backwashing mechanism 300 can no longer work. When the drive assembly 530 works, it drives the scraper 520 to move along the second lead screw 510, thereby pushing the residue squeezed on the top of the filter plate 120 out of the slag discharge trough 110d.

[0066] In this embodiment, reference Figure 2 and Figure 9The drive assembly 530 includes a housing 530a located on the side wall of the treatment tank 110 and having an inlet 530a-1 on the side wall, a rotating blade 530b rotatably connected to the side wall of the housing 530a and located below the inlet 530a-1, and a second connecting shaft 530c having a pulley at one end and passing through the side wall of the housing 530a and connected to the second lead screw 510 at the other end. The inlet 530a-1 is connected to the end of the water guide pipe 220a away from the water inlet pipe 220. Wastewater enters the housing 530a through the inlet 530a-1 and impacts the rotating blade 530b. The rotating blade 530b rotates, driving the pulley to rotate. A baffle 530a-3 is provided on the top of the inner wall of the housing 530a to block the wastewater entering the housing 530a through the inlet 530a-1 towards the rotating blade 530b.

[0067] The side wall of the rotating blade 530b has a pulley, which is connected to the pulley on the side wall of the second connecting shaft 530c by a belt. When the rotating blade 530b rotates, the pulley drives the second connecting shaft 530c to rotate, and the rotation of the second connecting shaft 530c drives the second lead screw 510 to rotate.

[0068] The second connecting shaft 530c has a torsion spring on its side wall, with one end connected to the side wall of the second connecting shaft 530c and the other end connected to the side wall of the housing 530a. When the second connecting shaft 530c rotates, it is stretched to provide a reversing force. After the residue is discharged, a space appears below the block 110c-2. The spring 110c-1 rebounds and pushes the block 110c-2 out of the through groove 110c. The wastewater continues to enter the treatment tank 110. At this time, the wastewater stops entering the housing 530a through the water guide pipe 220a. At this time, the second connecting shaft 530c drives the second lead screw 510 to rotate under the reversing force of the torsion spring, thereby bringing the scraper 520 back into the collection groove 110e.

[0069] In this embodiment, the specific usage process is as follows: (Refer to...) Figure 4 Wastewater from the rearing tank is pumped into the treatment tank 110 via the inlet mechanism 200. After being filtered by the filter plate 120, the wastewater is discharged through the outlet trough 110a and the drainage trough 410. When the filter plate 120 becomes clogged, refer to... Figure 5 The drive mechanism 400 drives the backwashing mechanism 300 to operate. The backwashing mechanism 300 washes the bottom of the filter plate 120, thereby maintaining continuous filtration by the filter plate 120, until there is a large amount of residue on the top of the filter plate 120, at which point the drive mechanism 400 can no longer drive the backwashing mechanism 300. (Refer to...) Figure 5 Simultaneously, the filter plate 120 moves upward, squeezing the impurities on its surface until the blockage block 110c-2 blocks the channel 110c. (Refer to...) Figure 6The slag discharge mechanism 500 operates, pushing the compacted residue on the top of the filter plate 120 out through the slag discharge port. Then, the block 110c-2 is rebounded out of the through groove 110c by the spring 110c-1, and the wastewater in the inlet pipe 220 continues to enter the treatment tank 110 to wash the surface of the filter plate 120, thus performing continuous filtration. The backwashing mechanism 300 washes the bottom of the filter plate 120, and the wastewater in the inlet pipe 220 washes the top of the filter plate 120. The overall structure realizes automatic slag discharge and automatic cleaning of the filter plate 120, reducing the frequency of manual cleaning and replacement of the filter plate 120.

[0070] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An aquaculture wastewater treatment device, characterized in that, include: The filtration mechanism (100) includes a processing box (110) and a filter plate (120) installed inside the processing box (110). A water inlet mechanism (200) is provided on the top of the treatment tank (110) for introducing wastewater from the breeding tank into the treatment tank (110) during operation; A backwashing mechanism (300) is installed inside the treatment box (110) and located below the filter plate (120) for rinsing the bottom of the filter plate (120) during operation. A drive mechanism (400) is installed on the outside of the processing box (110) and is connected to the backwash mechanism (300) for driving the backwash mechanism (300) to work when the filter plate (120) is blocked; A slag discharge mechanism (500) is provided inside the processing box (110) to discharge the slag on the top of the filter plate (120) into the processing box (110) when there is too much slag on the top of the filter plate (120) and the backwashing mechanism (300) cannot work. The bottom of the side wall of the treatment tank (110) is provided with a water outlet trough (110a). The backwashing mechanism (300) includes a first lead screw (310) installed inside the treatment tank (110), a slide rod (320) installed inside the treatment tank (110) and parallel to the first lead screw (310), an extrusion block (330) located inside the treatment tank (110) and with its two ends respectively sleeved on the first lead screw (310) and the slide rod (320), and a water storage tank (340) located at the bottom of the treatment tank (110) and with an extrusion groove (340a) on its top surface, wherein the extrusion groove (340a) corresponds to the extrusion block (330); The bottom of the processing tank (110) is provided with a plurality of perforations (110b), and the top surface of the water storage tank (340) is open at the position corresponding to the plurality of perforations (110b). The filter plate (120) is respectively sleeved on the first lead screw (310) and the slide rod (320), and the texture of the first lead screw (310) at the connection between the filter plate (120) and the extrusion block (330) is opposite; The drive mechanism (400) includes a drain trough (410) located outside the processing tank (110) and having an opening corresponding to the water outlet trough (110a), a damping plate (420) located inside the drain trough (410) and having a first connecting shaft (420a) on both sides, and a worm gear (430) located inside the drain trough (410) and having one end passing through the side wall of the drain trough (410) and being connected to the first lead screw (310) for transmission. The inner wall of the drain trough (410) has connecting holes (410a) on both sides corresponding to the first connecting shaft (420a), and a turbine (420b) that meshes with the worm gear (430) is sleeved on the first connecting shaft (420a). The outer side wall of the first connecting shaft (420a) is connected to a torsion spring, one end of which is connected to the side wall of the first connecting shaft (420a) and the other end of which is connected to the inner wall of the connecting hole (410a).

2. The aquaculture wastewater treatment equipment according to claim 1, characterized in that, The water inlet mechanism (200) includes a water pump (210) installed on the top of the treatment tank (110) and a water inlet pipe (220) whose top is connected to the output end of the water pump (210) via a conduit and whose bottom is connected to the inside of the treatment tank (110).

3. The aquaculture wastewater treatment equipment according to claim 2, characterized in that, The bottom of the first lead screw (310) is connected to a first helical gear (310a) which is rotatably connected to the bottom of the inner wall of the processing box (110). The side wall of the first helical gear (310a) is meshed with a second helical gear (310a-1) which is connected to the worm (430) through a rotating shaft.

4. The aquaculture wastewater treatment equipment according to claim 3, characterized in that, The top of the inner wall of the treatment box (110) is provided with a through groove (110c) that communicates with the water inlet pipe (220). Multiple springs (110c-1) are arranged along the circumferential direction on the side wall of the through groove (110c). A plug (110c-2) corresponding to the through groove (110c) is provided at the bottom of the multiple springs (110c-1). A slag discharge groove (110d) is provided on the side wall of the treatment box (110). A cover plate (110d-1) is connected to the slag discharge groove (110d) through a rotating shaft. Torsion springs are connected to the rotating shaft side walls on both sides of the cover plate (110d-1). The slag discharge mechanism (500) includes a second lead screw (510) installed in the processing box (110), a scraper (520) sleeved on the second lead screw (510) and corresponding to the slag discharge trough (110d), and a drive assembly (530) that drives the scraper (520) to move along the lead screw when the backwashing mechanism (300) can no longer work.

5. The aquaculture wastewater treatment equipment according to claim 4, characterized in that, A water guide pipe (220a) is provided on the side wall of the water inlet pipe (220); The drive assembly (530) includes a housing (530a) located on the side wall of the processing tank (110) and having a water inlet (530a-1) on the side wall, a rotating blade (530b) rotatably connected to the side wall of the housing (530a) and located below the water inlet (530a-1), and a second connecting shaft (530c) having a pulley at one end and passing through the side wall of the housing (530a) and connected to the second lead screw (510) at the other end. The water inlet (530a-1) is connected to the end of the water guide pipe (220a) away from the water inlet pipe (220). A baffle (530a-3) is provided on the top of the inner wall of the housing (530a). The side wall of the rotating blade (530b) has a pulley, and is connected to the pulley on the side wall of the second connecting shaft (530c) by a belt; The second connecting shaft (530c) has a torsion spring at one end connected to the side wall of the second connecting shaft (530c) and at the other end connected to the side wall of the housing (530a).

6. The aquaculture wastewater treatment equipment according to claim 5, characterized in that, The inner wall of the processing box (110) away from the slag discharge trough (110d) has a receiving trough (110e) corresponding to the scraper (520).

7. The aquaculture wastewater treatment equipment according to claim 6, characterized in that, The side wall of the inlet pipe (220) has a return pipe (220b), which is located below the water guide pipe (220a); The side wall of the housing (530a) is provided with an outlet (530a-2) connected to the end of the return pipe (220b) away from the inlet pipe (220). The outlet (530a-2) is connected with an anti-backflow mechanism (530a-21) to prevent wastewater from flowing from one end of the guide pipe (220a) to the other end of the outlet (530a-2).

Images