Wastewater treatment device and method

Abstract

The invention discloses a wastewater treatment device which comprises a box body unit, the box body unit comprises a treatment box and a flow guide frame matched with the treatment box, and a drainage pipe is fixedly installed at the bottom end of the flow guide frame. Wastewater enters the treatment box through a water inlet pipe, drives a water wheel to rotate firstly, then falls to a filter screen to be filtered and then is discharged; the gear and the toothed plate drive the filter screen to swing, so that wastewater is uniformly distributed, the filtering area is increased, filtering is accelerated, the adjusting structure controls the filter screen to improve swinging of the filter screen, the filtering effect of the filter screen is improved, meanwhile, force generated by swinging of the filter screen can remove impurities in filter holes, blockage is prevented, and the service life of the filter screen is prolonged; the driving structure drives the filter screen to rotate, the scraping structure removes impurities, the filter screen flaps the scraping structure when swinging, the impurities fall off, the cleaning effect is enhanced, the falling impurities fall into the collecting box through the material guiding base, and the connecting shaft rotates to drive the spiral blade to push the impurities to the material guiding opening to be discharged.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and in particular to a wastewater treatment device and method. Background Art

[0002] Industrial production or human life activities usually generate a large amount of industrial wastewater and domestic wastewater. The wastewater usually contains a certain amount of suspended particles that need to be initially filtered to avoid accumulation and blockage of subsequent equipment pipelines, affecting production operations.

[0003] Most of the current wastewater treatment equipment relies on the water inlet pipe to transport wastewater to a single filter area for filtration. This centralized filtration method not only limits the wastewater treatment speed, resulting in low filtration efficiency, but also due to the presence of suspended particles in the wastewater, the filter is very easy to get clogged during the filtration process, seriously affecting the filtration effect and the normal operation of the equipment. In order to solve the filter clogging problem, it is usually necessary to manually clean the impurities on the filter surface regularly or replace the filter frequently, which not only consumes a lot of manpower and time resources, but also further reduces the overall efficiency of wastewater treatment. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing wastewater treatment device and method, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a wastewater treatment device and method, which is suitable for solving the problems of low centralized filtration efficiency of wastewater treatment equipment, easy clogging of filter screens, and frequent manual cleaning or replacement, which is time-consuming, labor-intensive and inefficient.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a wastewater treatment device, comprising:

[0008] A box unit, comprising a treatment box and a guide frame matched with the treatment box, a drain pipe is fixedly installed at the bottom end of the guide frame, a filter screen is arranged in the inner cavity of the treatment box, a transmission belt is fixedly installed on both sides of the filter screen, transmission wheels are arranged on both sides of the inner cavity of two groups of the transmission belts, and the side walls of the four groups of the transmission wheels are rotatably connected to the inner wall of the treatment box, and a driving structure is arranged on one side of the treatment box;

[0009] The filter unit includes a water inlet pipe symmetrically installed on one side of the treatment box, water wheels are symmetrically arranged in the inner cavity of the filter, connecting rods are fixedly installed on two groups of the water wheels, and gears are fixedly installed on both ends of the connecting rods, first tooth plates and second tooth plates are respectively arranged on both sides of the four groups of gears, and the gears are respectively meshed with the first tooth plates and the second tooth plates, a first pressure plate is installed on the top end of the four groups of the first tooth plates, and the top end of the first pressure plate is fitted with the inner wall of the transmission belt, a second pressure plate is fixedly installed on the bottom end of the four groups of the second tooth plates, and the bottom end of the second pressure plate is fitted with the inner wall of the transmission belt, and an adjustment structure is arranged in the inner cavity of the filter.

[0010] As a preferred embodiment of the wastewater treatment device described in the present invention, the treatment device further includes a cleaning unit, which includes a cylinder arranged on one side of the inner cavity of the filter screen, and the cylinder does not contact the transmission wheel, a material guide seat is fixedly installed on one side of the inner wall of the cylinder, a collecting box is fixedly installed on the bottom end of the material guide seat, the inner cavity of the collecting box is rotatably connected with a connecting shaft, and one side of the connecting shaft passes through one side of the collecting box and is rotatably connected to the side wall of the cylinder, a spiral blade is installed on the outer surface of the connecting shaft, a material guide port is fixedly installed on the bottom end of the collecting box, and a scraping structure is arranged on the top of the cylinder.

[0011] As a preferred solution of a wastewater treatment device described in the present invention, wherein: the regulating structure includes a connecting frame fixedly installed on the top of the two groups of water inlet pipes, the tops of the two groups of connecting frames are slidably connected with flow blocks, the tops of the two groups of flow blocks are fixedly installed with L-shaped plates, and the bottom end of one side of the L-shaped plate is fixedly connected to the top of the second tooth plate.

[0012] As a preferred solution of the wastewater treatment device described in the present invention, the scraping structure includes a connecting seat fixedly installed on the top of the cylinder, a mounting groove is opened on one side of the connecting seat, and the inner cavity of the mounting groove is slidably connected with a scraper, and the inner cavity of the mounting groove is installed with several groups of telescopic springs, the top ends of the several groups of telescopic springs are fixedly connected to the bottom end of the scraper, and the top end of the scraper is tightly fitted with the top end of the filter.

[0013] As a preferred solution of a wastewater treatment device described in the present invention, the driving structure includes a connecting block fixedly installed in the inner cavity of the transmission wheel, a motor is arranged on one side of the connecting block, the output end of the motor is fixedly connected to the outer wall of the connecting block, and one side of the connecting block is fixedly connected to one end of the connecting shaft.

[0014] As a preferred solution of the wastewater treatment device described in the present invention, several groups of slide grooves are opened on both sides of the inner wall of the treatment box, and the inner cavity of the slide groove is slidably connected with a slider, and one side of several groups of the sliders is fixedly connected to four groups of first tooth plates and four groups of second tooth plates respectively.

[0015] As a preferred solution of the wastewater treatment device described in the present invention, a fixing plate is fixedly installed on the inner wall of the treatment box, and one side of the fixing plate is fixedly connected to the outer wall of the cylinder.

[0016] As a preferred solution of the wastewater treatment device described in the present invention, a material guide groove is provided at the top of the cylinder, and the material guide groove is communicated with the material guide seat.

[0017] As a preferred solution of the wastewater treatment device described in the present invention, four groups of supporting legs are fixedly installed on the bottom end of the treatment box, and the four groups of supporting legs are distributed in a rectangular shape.

[0018] The present invention further provides a wastewater treatment method, which is applicable to the above wastewater treatment device and specifically comprises the following steps:

[0019] S1: The drive structure drives the filter to rotate through the water inlet pipe and discharges the wastewater into the inner cavity of the treatment box. The wastewater first passes through the water wheel, driving the water wheel to rotate, and then falls on the filter. The filter filters the wastewater, and the filtered wastewater is discharged through the drain pipe;

[0020] S2: When the water wheel starts to rotate, the water wheel drives the gears at both ends to rotate through the connecting rod. The gear drives the first tooth plate to rise while the second tooth plate falls. The first tooth plate and the second tooth plate drive the first pressure plate to rise and fall respectively, thereby causing the transmission belt to swing, and then the filter screen also swings. This swing ensures that the wastewater can be more evenly distributed on the filter screen, increases the filtration area, and accelerates the filtration speed of the wastewater. In particular, the movement of the second tooth plate further increases the swing effect of the filter screen through the adjustment structure, thereby improving the filtration efficiency. The centrifugal force and inertial force generated by the swing of the filter screen help to remove impurities in the filter holes, prevent the filter screen from being blocked prematurely, and extend its service life;

[0021] S3: When the filter rotates, the scraping structure is responsible for removing impurities on it, and the swing of the filter will continuously hit the scraping structure, causing the impurities to fall off the filter, further enhancing the cleaning effect. The fallen impurities enter the collection box through the guide seat. At the same time, the rotation of the connecting shaft drives the spiral blade to rotate, and the spiral blade pushes the impurities in the collection box to the guide port, and finally discharges them through the guide port.

[0022] Beneficial effects of the present invention:

[0023] 1. Wastewater enters the treatment box through the water inlet pipe, first drives the water wheel to rotate, then falls to the filter screen for filtration and is discharged. While the water wheel rotates, the filter screen is driven to swing through the gears and toothed plates to evenly distribute the wastewater, increase the filtration area, accelerate filtration, adjust the structure to control the filter screen to increase the filter screen swing, and increase the filter effect. At the same time, the force generated by the filter screen swing can remove impurities in the filter holes, prevent clogging, and extend its service life.

[0024] 2. The driving structure drives the filter to rotate, and the scraping structure removes impurities. The filter hits the scraping structure when swinging to make the impurities fall off, thereby enhancing the cleaning effect. The fallen impurities fall into the collection box through the material guide seat, and the connecting shaft rotates to drive the spiral blade to push the impurities to the material guide port for discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0026] Figure 1 This is a schematic diagram of the overall structure of a wastewater treatment device proposed by the present invention;

[0027] Figure 2 A schematic diagram of the side structure of a wastewater treatment device proposed by the present invention;

[0028] Figure 3 A schematic cross-sectional view of a wastewater treatment device proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the front structure of a transmission belt of a wastewater treatment device proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the back structure of a transmission belt of a wastewater treatment device proposed by the present invention;

[0031] Figure 6 A schematic diagram of the structure of a filter unit of a wastewater treatment device proposed by the present invention;

[0032] Figure 7 A schematic diagram of the regulating structure of a wastewater treatment device proposed by the present invention;

[0033] Figure 8 A schematic diagram of the structure of a cleaning unit of a wastewater treatment device proposed by the present invention;

[0034] Fig. 9 A schematic diagram of a scraping structure of a wastewater treatment device proposed by the present invention;

[0035] Fig.10 This is a schematic diagram of the cylindrical plane structure of a wastewater treatment device proposed by the present invention;

[0036] Fig.11 This is a schematic diagram of the working process of a wastewater treatment device proposed by the present invention.

[0037] Description of reference numerals: 100, box unit; 101, treatment box; 102, guide frame; 103, motor; 104, drain pipe; 105, filter screen; 106, drive belt; 107, drive wheel; 108, connecting block; 200, filter unit; 201, water inlet pipe; 202, gear; 203, first tooth plate; 204, second tooth plate; 205, slider; 206, water wheel; 207, connection Rod; 208, first pressure plate; 209, second pressure plate; 210, L-shaped plate; 211, connecting frame; 212, flow blocking block; 300, cleaning unit; 301, material guide port; 302, collecting box; 303, cylinder; 304, connecting shaft; 305, spiral blade; 306, connecting seat; 307, scraper; 308, material guide seat; 309, mounting groove; 310, telescopic spring; 311, fixing plate. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0041] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0042] Example 1

[0043] Reference Figure 1-Figure 11 , which is an embodiment of the present invention, provides a wastewater treatment device, including a box unit 100, a filter unit 200 and a cleaning unit 300.

[0044] The box unit 100 includes a treatment box 101 and a guide frame 102 matched with the treatment box 101. A drain pipe 104 is fixedly installed at the bottom of the guide frame 102. A filter screen 105 is provided in the inner cavity of the treatment box 101. Drive belts 106 are fixedly installed on both sides of the filter screen 105. Drive wheels 107 are provided on both sides of the inner cavity of the two sets of drive belts 106. The side walls of the four sets of drive wheels 107 are rotatably connected to the inner wall of the treatment box 101. A driving structure is provided on one side of the treatment box 101. The filter screen 105 filters wastewater. The driving structure drives the drive belt 106 to rotate, and then drives the filter screen 105 to rotate through the drive belt 106.

[0045] The filter unit 200 includes a water inlet pipe 201 symmetrically installed on one side of the treatment box 101, a water wheel 206 is symmetrically arranged in the inner cavity of the filter screen 105, two groups of water wheels 206 are fixedly installed with connecting rods 207, and gears 202 are fixedly installed at both ends of the connecting rods 207, first tooth plates 203 and second tooth plates 204 are respectively arranged on both sides of the four groups of gears 202, and the gears 202 are respectively meshed with the first tooth plates 203 and the second tooth plates 204, a first pressing plate 208 is installed at the top of the four groups of first tooth plates 203, and the top of the first pressing plate 208 is in contact with the inner wall of the transmission belt 106, a second pressing plate 209 is fixedly installed at the bottom end of the four groups of second tooth plates 204, and the bottom end of the second pressing plate 209 is in contact with the inner wall of the transmission belt 106, and an adjusting structure is arranged in the inner cavity of the filter screen 105, when the water wheel 206 starts to rotate, the water wheel 206 drives the gears 206 at both ends through the connecting rod 207. 02 rotates, the gear 202 drives the first tooth plate 203 to rise while the second tooth plate 204 descends. The first tooth plate 203 and the second tooth plate 204 drive the first pressure plate 208 and the second pressure plate 209 to rise and descend respectively, so that the transmission belt 106 starts to swing. The transmission belt 106 drives the filter screen 105 to swing, so that the wastewater is more evenly distributed on the filter screen 105, thereby increasing the filtration area and ultimately increasing the speed of wastewater passing through the filter screen 105. During the movement of the second tooth plate 204, the second tooth plate 204 improves the swing effect of the filter screen 105 by adjusting the structure, thereby increasing the filtration effect of the filter screen 105. The up and down swinging of the filter screen 105 will generate a certain centrifugal force and inertial force, which are helpful to throw the impurity particles blocked in the filter holes to the surface of the filter screen 105. In this way, not only the patency of the filter holes can be restored, but also the filter screen 105 can be prevented from being blocked prematurely, thereby extending its service life.

[0046] The cleaning unit 300 includes a cylinder 303 arranged on one side of the inner cavity of the filter screen 105, and the cylinder 303 does not contact the transmission wheel 107. A material guide seat 308 is fixedly installed on one side of the inner wall of the cylinder 303, and a collection box 302 is fixedly installed on the bottom end of the material guide seat 308. The inner cavity of the collection box 302 is rotatably connected with a connecting shaft 304, and one side of the connecting shaft 304 passes through one side of the collection box 302 and is rotatably connected to the side wall of the cylinder 303. A spiral blade 305 is installed on the outer surface of the connecting shaft 304. A material guide port 301 is fixedly installed at the bottom end of the collection box 302. A scraping structure is provided at the top of the cylinder 303. When the filter screen 105 rotates, the scraping structure can scrape the impurities on the filter screen 105. When the filter screen 105 swings, it will continuously hit the scraping structure, so that the impurities fall from the filter screen 105, further improving the cleaning of the filter screen 105. The impurities enter the collecting box 302 through the material guide seat 308. When the connecting shaft 304 rotates, the connecting shaft 304 will drive the spiral blade 305 to rotate. The spiral blade 305 pushes the impurities in the collecting box 302 to move in the direction of the material guide port 301, and finally discharged through the material guide port 301.

[0047] The regulating structure includes a connecting frame 211 fixedly installed on the top of the two groups of water inlet pipes 201, and the top of the two groups of connecting frames 211 is slidably connected with a baffle 212. The top of the two groups of baffles 212 is fixedly installed with an L-shaped plate 210, and the bottom end of one side of the L-shaped plate 210 is fixedly connected to the top of the second tooth plate 204. When the second pressing plate 209 moves downward, the second pressing plate 209 drives the baffle 212 to move downward through the L-shaped plate 210 to block the waste water flowing in the water inlet pipe 201, and the water wheel 206 stops rotating. The transmission belt 106 rebounds and drives the first pressing plate 208 and the second pressing plate 209 back to their original positions. At this time, the baffle 212 also returns to its original position and no longer blocks the waste water in the water inlet pipe 201. The first pressing plate 208 and the second pressing plate 209 move, causing the transmission belt 106 to start swinging, thereby driving the filter screen 105 to swing, thereby enhancing the efficiency and effect of the filter screen 105 swinging back and forth.

[0048] The scraping structure includes a connecting seat 306 fixedly installed on the top of the cylinder 303, a mounting groove 309 is opened on one side of the connecting seat 306, and the inner cavity of the mounting groove 309 is slidably connected with a scraper 307, and the inner cavity of the mounting groove 309 is installed with a plurality of groups of telescopic springs 310, the top ends of the plurality of telescopic springs 310 are fixedly connected to the bottom ends of the scraper 307, and the top ends of the scraper 307 are tightly fitted with the top ends of the filter screen 105, when the filter screen 105 rotates, the scraper 307 will remove impurities on its surface, when the filter screen 105 swings, the telescopic springs 310 are set to make the top ends of the scraper 307 always fit with the surface of the filter screen 105, and the surface affects the scraping effect of the scraper 307, and at the same time, when the filter screen 105 swings, it will slap the connecting seat 306, so that the part of the filter screen 105 close to the scraper 307 vibrates, so that the impurities on the filter screen 105 are more likely to fall off, thereby improving the cleaning effect of the filter screen 105.

[0049] The driving structure includes a connecting block 108 fixedly installed in the inner cavity of the transmission wheel 107, and a motor 103 is arranged on one side of the connecting block 108. The output end of the motor 103 is fixedly connected to the outer wall of the connecting block 108, and one side of the connecting block 108 is fixedly connected to one end of the connecting shaft 304. When the motor 103 is started, the motor 103 drives the connecting block 108 to rotate, and the connecting block 108 drives the transmission wheel 107 and the connecting shaft 304 to rotate. When the transmission wheel 107 rotates, the transmission belt 106 is driven to rotate, and then the filter screen 105 is driven to rotate.

[0050] Several groups of slide grooves are opened on both sides of the inner wall of the processing box 101, and the inner cavity of the slide groove is slidably connected with a slider 205. One side of the several groups of sliders 205 is respectively fixedly connected to the four groups of first tooth plates 203 and the four groups of second tooth plates 204. The slider 205 slides in the slide groove to limit the first tooth plate 203 to ensure the stability of the first tooth plate 203 when moving.

[0051] A fixing plate 311 is fixedly installed on the inner wall of the processing box 101 , and one side of the fixing plate 311 is fixedly connected to the outer wall of the cylinder 303 . The cylinder 303 is firmly fixed in the inner cavity of the filter screen 105 through the fixing plate 311 .

[0052] A material guide groove is provided at the top of the cylinder 303 , and the material guide groove is communicated with the material guide seat 308 . Impurities cleaned from the filter screen 105 enter the material guide seat 308 through the material guide groove provided in the cylinder 303 .

[0053] Four groups of supporting legs are fixedly installed at the bottom of the processing box 101 , and the four groups of supporting legs are distributed in a rectangular shape, and the supporting legs support the processing box 101 .

[0054] Example 2

[0055] A wastewater treatment method, using the wastewater treatment device in Example 1, specifically comprises the following steps:

[0056] S1: The filter screen 105 is driven by the driving structure to rotate through the water inlet pipe 201, and the wastewater is discharged into the inner cavity of the treatment box 101. The wastewater first passes through the water wheel 206, driving the water wheel 206 to rotate, and then falls on the filter screen 105. The filter screen 105 filters the wastewater, and the filtered wastewater is discharged through the drain pipe 104;

[0057] S2: When the water wheel 206 starts to rotate, the water wheel 206 drives the gears 202 at both ends to rotate through the connecting rod 207. The gear 202 drives the first tooth plate 203 to rise while the second tooth plate 204 descends. The first tooth plate 203 and the second tooth plate 204 drive the first pressure plate 208 and the second pressure plate 209 to rise and fall respectively, thereby triggering the swing of the transmission belt 106, and then causing the filter screen 105 to swing. This swing ensures that the wastewater can be more evenly distributed on the filter screen 105, increases the filtration area, and accelerates the filtration speed of the wastewater. In particular, the movement of the second tooth plate 204 further increases the swing effect of the filter screen 105 through the adjustment structure, thereby improving the filtration efficiency. The centrifugal force and inertial force generated by the swing of the filter screen 105 help to remove impurities in the filter hole, prevent the filter screen 105 from being blocked prematurely, and extend its service life.

[0058] S3: When the filter 105 rotates, the scraping structure is responsible for removing impurities thereon, and the swing of the filter 105 will continuously hit the scraping structure, causing the impurities to fall off the filter 105, further enhancing the cleaning effect, and the fallen impurities enter the collection box 302 through the material guide seat 308. At the same time, the rotation of the connecting shaft 304 drives the spiral blade 305 to rotate, and the spiral blade 305 pushes the impurities in the collection box 302 to the material guide port 301, and finally discharges them through the material guide port.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A wastewater treatment device, characterized in that: include: A box unit (100) comprises a treatment box (101) and a guide frame (102) matched with the treatment box (101), a drain pipe (104) is fixedly installed at the bottom end of the guide frame (102), a filter screen (105) is arranged in the inner cavity of the treatment box (101), transmission belts (106) are fixedly installed on both sides of the filter screen (105), transmission wheels (107) are arranged on both sides of the inner cavity of two groups of the transmission belts (106), and the side walls of the four groups of the transmission wheels (107) are rotatably connected to the inner wall of the treatment box (101), and a driving structure is arranged on one side of the treatment box (101); The filter unit (200) comprises a water inlet pipe (201) symmetrically mounted on one side of a treatment box (101), a water wheel (206) symmetrically arranged in the inner cavity of the filter screen (105), two groups of the water wheels (206) are fixedly mounted with connecting rods (207), and gears (202) are fixedly mounted at both ends of the connecting rods (207), and first tooth plates (203) and second tooth plates (204) are respectively arranged on both sides of the four groups of gears (202), and the gears (202) are respectively The first tooth plate (203) and the second tooth plate (204) are meshed with each other, a first pressure plate (208) is installed at the top end of the four groups of the first tooth plates (203), and the top end of the first pressure plate (208) is in contact with the inner wall of the transmission belt (106), a second pressure plate (209) is fixedly installed at the bottom end of the four groups of the second tooth plates (204), and the bottom end of the second pressure plate (209) is in contact with the inner wall of the transmission belt (106), and the inner cavity of the filter screen (105) is provided with an adjustment structure.

2. A wastewater treatment device according to claim 1, characterized in that: The processing device further comprises a cleaning unit (300), which comprises a cylinder (303) arranged on one side of the inner cavity of the filter screen (105), and the cylinder (303) does not contact the transmission wheel (107); a material guide seat (308) is fixedly mounted on one side of the inner wall of the cylinder (303); a collection box (302) is fixedly mounted on the bottom end of the material guide seat (308); a connecting shaft (304) is rotatably connected to the inner cavity of the collection box (302), and one side of the connecting shaft (304) passes through one side of the collection box (302) and is rotatably connected to the side wall of the cylinder (303); a spiral blade (305) is mounted on the outer surface of the connecting shaft (304); a material guide port (301) is fixedly mounted on the bottom end of the collection box (302); and a scraping structure is arranged on the top end of the cylinder (303).

3. A wastewater treatment device according to claim 1, characterized in that: The regulating structure comprises a connecting frame (211) fixedly mounted on the top ends of the two groups of water inlet pipes (201); the top ends of the two groups of connecting frames (211) are slidably connected with flow blocks (212); the top ends of the two groups of flow blocks (212) are fixedly mounted with L-shaped plates (210); and the bottom end of one side of the L-shaped plate (210) is fixedly connected to the top end of the second tooth plate (204).

4. A wastewater treatment device according to claim 2, characterized in that: The scraping structure comprises a connecting seat (306) fixedly mounted on the top end of the cylinder (303); a mounting groove (309) is provided on one side of the connecting seat (306); a scraper (307) is slidably connected to the inner cavity of the mounting groove (309); a plurality of groups of telescopic springs (310) are mounted in the inner cavity of the mounting groove (309); the top ends of the plurality of groups of telescopic springs (310) are fixedly connected to the bottom end of the scraper (307); and the top end of the scraper (307) is tightly fitted to the top end of the filter screen (105).

5. A wastewater treatment device according to claim 4, characterized in that: The driving structure comprises a connecting block (108) fixedly mounted in the inner cavity of a transmission wheel (107), a motor (103) being arranged on one side of the connecting block (108), an output end of the motor (103) being fixedly connected to an outer wall of the connecting block (108), and one side of the connecting block (108) being fixedly connected to one end of a connecting shaft (304).

6. A wastewater treatment device according to claim 1, characterized in that: A plurality of groups of slide grooves are provided on both sides of the inner wall of the processing box (101), and the inner cavity of the slide groove is slidably connected with a slider (205), and one side of the plurality of groups of sliders (205) is fixedly connected to four groups of first tooth plates (203) and four groups of second tooth plates (204) respectively.

7. A wastewater treatment device according to claim 6, characterized in that: A fixing plate (311) is fixedly mounted on the inner wall of the processing box (101), and one side of the fixing plate (311) is fixedly connected to the outer wall of the cylinder (303).

8. A wastewater treatment device according to claim 7, characterized in that: A material guiding groove is provided at the top of the cylinder (303), and the material guiding groove is communicated with the material guiding seat (308).

9. A wastewater treatment device according to claim 8, characterized in that: Four groups of supporting legs are fixedly installed at the bottom end of the processing box (101), and the four groups of supporting legs are distributed in a rectangular shape.

10. A method for treating wastewater, using the wastewater treatment device according to claim 2, comprising the following steps: S1: The filter screen (105) is driven by the driving structure to rotate through the water inlet pipe (201) to discharge the wastewater into the inner cavity of the treatment box (101). The wastewater first passes through the water wheel (206), driving the water wheel (206) to rotate, and then falls on the filter screen (105). The filter screen (105) filters the wastewater, and the filtered wastewater is discharged through the drain pipe (104); S2: When the water wheel (206) starts to rotate, the water wheel (206) drives the gears (202) at both ends to rotate through the connecting rod (207). The gear (202) drives the first tooth plate (203) to rise while the second tooth plate (204) descends. The first tooth plate (203) and the second tooth plate (204) drive the first pressure plate (208) and the second pressure plate (209) to rise and descend respectively, thereby causing the transmission belt (106) to swing, and then causing the filter screen (105) to swing. This swing ensures that the wastewater can be more evenly distributed on the filter screen (105), increases the filtering area, and accelerates the filtering speed of the wastewater. In particular, the movement of the second tooth plate (204) further increases the swing effect of the filter screen (105) through the adjustment structure, thereby improving the filtering efficiency. The centrifugal force and inertial force generated by the swing of the filter screen (105) help to remove impurities in the filter hole, prevent the filter screen (105) from being blocked prematurely, and extend its service life; S3: When the filter (105) rotates, the scraping structure is responsible for removing impurities thereon, and the swing of the filter (105) will continuously hit the scraping structure, causing the impurities to fall off the filter (105), further enhancing the cleaning effect. The fallen impurities enter the collection box (302) through the material guide seat (308). At the same time, the rotation of the connecting shaft (304) drives the spiral blade (305) to rotate, and the spiral blade (305) pushes the impurities in the collection box (302) to the material guide port (301), and finally discharges them through the material guide port.

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