Sewage treatment device and treatment method

Abstract

The sewage treatment device comprises a box body, a filter screen is horizontally arranged at one end in the box body, a scraping and sweeping mechanism used for scraping and sweeping solid garbage on the filter screen is arranged above the filter screen, and a collecting and discharging mechanism used for collecting and discharging the solid garbage is arranged on one side of the filter screen; a water removing mechanism used for extruding sewage in the solid waste is arranged above the collecting and discharging mechanism, a water inlet is formed in the upper end of one side of the box body, and a crushing mechanism used for crushing large solid waste is arranged at the position, located on one side of the water inlet, in the box body. The device has the beneficial effects that by arranging the scraping and sweeping mechanism, solid garbage accumulated on the surface of the filter screen can be conveniently scraped and swept; by arranging the collecting and discharging mechanism, solid waste can be conveniently collected in a centralized mode and discharged out of the device; by arranging the water removal mechanism, sewage in the solid garbage can be conveniently discharged, and the subsequent garbage and sewage separation procedure is reduced; by arranging the crushing mechanism, large solid garbage in the sewage can be conveniently crushed.

Description

Technical Field

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

[0002] With the development and progress of society, a lot of sewage will be generated in all walks of life and daily life. Sewage treatment is the top priority of environmental protection. Therefore, a sewage treatment device is needed to treat sewage.

[0003] At present, the existing sewage treatment devices filter the solid waste in the sewage through the filter net during the sewage treatment process. However, as the amount of sewage treatment increases, fixed waste will gradually accumulate on the filter net, resulting in a significant reduction in the filtration efficiency. The filter net needs to be replaced or cleaned, resulting in a significant reduction in the filtration efficiency, and it is not convenient to discharge the solid waste in a centralized manner. In addition, the method of replacing the filter net causes the unloaded solid waste to contain a large amount of sewage. It is often necessary to separate the sewage from the garbage through a separation process, which greatly increases the cost consumption. In addition, the existing sewage treatment devices are not convenient for crushing the garbage in the sewage when treating sewage, resulting in some larger solid waste (such as plastic bags, etc.) adhering to the surface of the filter net, which is easy to cause clogging of the filter net, greatly affecting the efficiency of sewage treatment. Summary of the invention

[0004] Technical problems solved: It is convenient to scrape the solid waste on the surface of the filter, which not only improves work efficiency, but also facilitates the discharge of solid waste inside, avoids the mixing of sewage in the waste, and avoids the clogging of the filter by larger solid waste.

[0005] In view of the deficiencies in the prior art, the present invention provides a sewage treatment device and a treatment method, thereby solving the technical problems mentioned in the background technology.

[0006] Technical solution: To achieve the above objectives, the present invention is implemented through the following technical solution: comprising: a box body, a filter screen is horizontally provided at one end of the box body, a scraping mechanism for scraping solid waste on the filter screen is provided above the filter screen, a collecting and discharging mechanism for collecting and discharging solid waste is provided on one side of the filter screen, a dewatering mechanism for squeezing out sewage in the solid waste is provided above the collecting and discharging mechanism, a water inlet is provided at the upper end of one side of the box body, and a crushing mechanism for crushing larger solid waste is provided in the box body on the side of the water inlet.

[0007] In a possible implementation, the scraping mechanism includes a limiting circular frame that is in contact with and connected to the surface of the filter screen, one end of the limiting circular frame is fixedly connected to the inner wall of the box body through a connecting rod, a rotating rod is vertically arranged in the limiting circular frame, the top surface of the box body is located above the rotating rod and is fixedly connected to a motor, the top of the rotating rod passes through the top surface of the box body and is fixedly connected to the output end of the motor, a plurality of arc scrapers are fixedly connected to the lower end of the side wall of the rotating rod in an annular shape, and the bottom surfaces of the plurality of arc scrapers are all slidably connected to the surface of the filter screen, a discharge port is penetrated through the bottom of one side of the limiting circular frame, and the outer wall of the limiting circular frame An arc-shaped baffle is slidably connected at a position relative to the discharge port, and an outer wall of the limiting circular frame is fixedly connected with an arc-shaped guide rail above the arc-shaped baffle, and an upper end of the arc-shaped baffle is slidably connected to the arc-shaped guide rail, and a storage groove is provided on the side of the arc-shaped baffle close to the limiting circular frame, and a cross bar is slidably connected in the storage groove, one end of the cross bar is fixedly connected to a No. 1 spring, and the end of the No. 1 spring away from the cross bar is fixedly connected to the inner wall of the storage groove, and the other end of the cross bar is a hemispherical structure, and a collection bin is provided in the box body below the filter screen, and a drainage outlet is provided at the bottom of one side of the collecting bin through the side wall of the box body.

[0008] In a possible implementation, both ends of the arc-shaped guide rail are closed structures.

[0009] In a possible implementation, both ends of the filter are horizontally slidably connected to support rods, one side of the two support rods is fixedly connected to the inner wall of the box body, and one end of the support rod passes through the side wall of the box body and extends to the outside of the box body.

[0010] In a possible implementation, a material guiding inclined plate is obliquely provided on one side of the two support rods, and one end of the material guiding inclined plate is fixedly connected to one end of the two support rods.

[0011] In one possible implementation, the collecting and discharging mechanism includes a collecting box arranged below the material guiding inclined plate, the collecting box having a No. 2 inclined surface on the bottom surface, a No. 1 inclined surface on the bottom surface of the box body below the No. 2 inclined surface, the No. 1 inclined surface being slidably connected to the No. 2 inclined surface, an opening penetrating from one side of the box body at a position relative to the collecting box, a sliding groove penetrating from a side wall of the box body above the opening, an L-shaped baffle plate being slidably connected in the sliding groove, a side wall of one end of the L-shaped baffle plate being slidably connected to the side wall of the collecting box, a driving groove being provided at the other end of the L-shaped baffle plate, a storing plate being slidably connected in the driving groove, a No. 2 spring being fixedly connected to one end of the storing plate, and an end of the No. 2 spring being fixedly connected to the inner side wall of the driving groove away from the storing plate.

[0012] In a possible implementation, one end of the L-shaped baffle is located in the slide groove and vertically penetrates through a slidable connection with a limit rod, and two ends of the limit rod are respectively fixedly connected to the top surface and the bottom surface of the slide groove.

[0013] In one possible implementation, the water removal mechanism includes a pressure plate horizontally arranged above the collection box, the top surface of the pressure plate is vertically fixedly connected to a cylinder, the top of the cylinder is fixedly connected to the top surface of the box body, a sewage outlet is opened through the bottom of one side of the collection box, and a metal partition is installed in the sewage outlet.

[0014] In a possible implementation, the crushing mechanism includes a transfer rod vertically arranged on one side of the water inlet, the top end of the transfer rod is rotatably connected to the top surface of the box body, a No. 1 bevel gear is fixedly sleeved on the upper end of the transfer rod, and a No. 2 bevel gear is fixedly sleeved on the rotating rod at a position relative to the No. 1 bevel gear, the No. 1 bevel gear is meshingly connected with the No. 2 bevel gear, and a plurality of crushing blades are fixedly connected in a ring shape at the lower end of the transfer rod.

[0015] In a possible implementation, S1: the sewage to be treated is introduced into the box through the water inlet, and the motor is started to drive the rotating rod to rotate. The rotating rod drives the transfer rod to rotate through the meshing connection of the second bevel gear and the first bevel gear. The transfer rod drives the crushing blade to rotate, which is convenient for quickly cutting the sewage discharged from the water inlet and crushing the larger solid garbage in the sewage. The sewage discharged from the water inlet falls into the limiting circular frame and is discharged into the collection bin after being filtered by the filter net. The sewage in the collection bin is discharged through the drain port, which is convenient for the next sewage treatment process. S2: During the sewage filtration process, the rotating rod drives the arc scraper to rotate. The arc structure of the arc scraper facilitates the solid waste on the filter to be concentrated and pushed to the center of the rotating rod, thereby preventing the solid waste from accumulating on the surface of the filter and affecting the efficiency of sewage filtration. S3: When the solid waste in the limiting circular frame needs to be processed, the motor first drives the arc scraper to rotate in the opposite direction through the rotating rod. The arc structure of the arc scraper and the centrifugal force generated by the rotation facilitate the solid waste to be pushed around. While the arc scraper rotates, the arc scraper pushes the cross bar, and the cross bar drives the arc baffle to slide in the arc guide rail until the arc baffle moves to one end of the arc guide rail. At this time, the discharge port is opened, and the rotation of the arc scraper facilitates the solid waste to be pushed into the discharge port, and then introduced into the collection box through the guide inclined plate; S4: The sewage in the solid waste can be easily drained out through the sewage outlet and then fall into the collection bin. When the solid waste in the collection bin needs to be discharged, the cylinder drives the pressing plate to descend, and the descending pressing plate presses the solid waste in the collection bin, so as to squeeze out the sewage in the solid waste and then discharge it through the sewage outlet, thereby reducing the subsequent solid waste and sewage separation process and reducing cost consumption; S5: After the pressing plate is pressed, the cylinder drives the pressing plate to rise. During the rising process, the pressing plate will push the storage plate, and the storage plate will drive the L-shaped baffle to rise. When one end of the L-shaped baffle is away from the collection box, the collection box is slid out of the box body through the sliding connection of the first slope and the second slope, so that the solid waste in the collection box can be cleaned up conveniently.

[0016] Beneficial effect: The scraping mechanism is provided to facilitate the scraping of solid waste accumulated on the surface of the filter screen, thereby preventing the accumulation of solid waste from reducing the filtering efficiency; The collection and discharge mechanism is provided to facilitate the centralized collection and discharge of solid waste, thereby improving the convenience of work; By setting up a water removal mechanism, it is convenient to discharge sewage from solid waste, reduce the subsequent garbage and sewage separation process, and reduce cost consumption; By setting up a crushing mechanism, it is convenient to crush larger solid waste in sewage to prevent it from accumulating and adhering to the filter screen and causing clogging of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0018] Figure 1 It is a front cutaway structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the connection structure of the limiting circular frame of the present invention; Figure 3 It is a schematic diagram of the crossbar connection structure of the present invention; Figure 4 It is a schematic diagram of the connection structure of the limit rod of the present invention; Figure 5 It is a schematic diagram of the main structure of the present invention; Figure 6 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 7 For the present invention Figure 1 Enlarged structural diagram at B in the middle.

[0019] Legend: 1. Box; 2. Filter; 3. Scraping mechanism; 4. Collecting and discharging mechanism; 5. Dewatering mechanism; 6. Crushing mechanism; 7. Water inlet; 8. Limiting round frame; 9. Rotating rod; 10. Motor; 11. Curved scraper; 12. Discharging port; 13. Curved baffle; 14. Curved guide rail; 15. Storage slot; 16. No. 1 spring; 17. Cross bar; 18. Guide ramp; 19. Support rod; 20. Discharging Water inlet; 21. Collection bin; 22. Collection box; 23. Inclined surface No. 1; 24. Inclined surface No. 2; 25. Opening; 26. Drain outlet; 27. Metal screen; 28. Pressure plate; 29. ​​Cylinder; 30. Slide; 31. L-shaped baffle; 32. Drive groove; 33. Spring No. 2; 34. Storage plate; 35. Limit rod; 36. Adapter rod; 37. Crushing blade; 38. Bevel gear No. 1; 39. Bevel gear No. 2. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention can be implemented in various forms, so the present invention is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, components that are not connected with the invention will be omitted from the drawings. The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows: Embodiment 1: This embodiment introduces the specific structure of a sewage treatment device and a treatment method, including: a box body 1, a filter screen 2 is horizontally arranged at one end of the box body 1, a scraping mechanism 3 for scraping solid garbage on the filter screen 2 is provided above the filter screen 2, a collecting and discharging mechanism 4 for collecting and discharging solid garbage is provided on one side of the filter screen 2, a dewatering mechanism 5 for squeezing out sewage in the solid garbage is provided above the collecting and discharging mechanism 4, a water inlet 7 is opened at the upper end of one side of the box body 1, and a crushing mechanism 6 for crushing larger solid garbage is provided on the side of the water inlet 7 in the box body 1.

[0021] The scraping mechanism 3 includes a limiting circular frame 8 which is in contact with and connected to the surface of the filter screen 2. One end of the limiting circular frame 8 is fixedly connected to the inner wall of the box body 1 through a connecting rod. The rotating rod 9 is vertically arranged in the limiting circular frame 8. The motor 10 is fixedly connected to the top surface of the box body 1 and is located above the rotating rod 9. The top of the rotating rod 9 passes through the top surface of the box body 1 and is fixedly connected to the output end of the motor 10. A plurality of arc-shaped scrapers 11 are fixedly connected to the lower end of the side wall of the rotating rod 9 in an annular shape. The bottom surfaces of the plurality of arc-shaped scrapers 11 are all slidably connected to the surface of the filter screen 2. The discharge port 12 is opened through the bottom of one side of the limiting circular frame 8. The arc baffle 13 is slidably connected to the outer wall of the limiting circular frame 8 and is located at the discharge port. The opening 12 is in a relative position, the arc guide rail 14 is fixedly connected to the outer wall of the limiting circular frame 8 and is located above the arc baffle 13, the upper end of the arc baffle 13 is slidably connected to the arc guide rail 14, the storage groove 15 is opened on the side of the arc baffle 13 close to the limiting circular frame 8, the cross bar 17 is slidably connected in the storage groove 15, the No. 1 spring 16 is fixedly connected to one end of the cross bar 17, the No. 1 spring 16 is fixedly connected to the inner wall of the storage groove 15 away from the end of the cross bar 17, the other end of the cross bar 17 is a hemispherical structure, the collection bin 21 is opened in the box body 1 and is located below the filter screen 2, and the drain outlet 20 is opened at the bottom of one side of the collection bin 21 and penetrates the side wall of the box body 1.

[0022] Both ends of the arc-shaped guide rail 14 are closed structures to prevent the arc-shaped baffle 13 from detaching from the arc-shaped guide rail 14 .

[0023] Two support rods 19 are horizontally slidably connected to the two ends below the filter screen 2. One side of the two support rods 19 is fixedly connected to the inner wall of the box body 1. One end of the support rod 19 passes through the side wall of the box body 1 and extends to the outside of the box body 1. The filter screen 2 is slidably connected to the two support rods 19, which facilitates the replacement of the filter screen 2.

[0024] The guide inclined plate 18 is tilted on one side of the two support rods 19 , and one end of the guide inclined plate 18 is fixedly connected to one end of the two support rods 19 . The guide inclined plate 18 facilitates the solid waste to be introduced into the collection box 22 .

[0025] The collecting and discharging mechanism 4 includes a collecting box 22 arranged below the guiding inclined plate 18, a second inclined surface 24 is provided on the bottom surface of the collecting box 22, a first inclined surface 23 is provided on the bottom surface of the box body 1 and is located below the second inclined surface 24, the first inclined surface 23 is slidably connected with the second inclined surface 24, and the collecting box 22 is conveniently slid out of the box body 1 through the sliding connection between the first inclined surface 23 and the second inclined surface 24, and an opening 25 is provided through one side of the box body 1 and is located at a position opposite to the collecting box 22. The slide groove 30 is opened through the side wall of the box body 1 and is located above the opening 25. The L-shaped baffle plate 31 is slidably connected in the slide groove 30. The side wall of one end of the L-shaped baffle plate 31 is slidably connected to the side wall of the collection box 22. The driving groove 32 is opened at the other end of the L-shaped baffle plate 31. The storage plate 34 is slidably connected in the driving groove 32. The No. 2 spring 33 is fixedly connected to one end of the storage plate 34. The end of the No. 2 spring 33 away from the storage plate 34 is fixedly connected to the inner wall of the driving groove 32.

[0026] The limiting rod 35 vertically penetrates and is slidably connected to one end of the L-shaped baffle 31 located in the slide groove 30. The two ends of the limiting rod 35 are respectively fixedly connected to the top surface and the bottom surface of the slide groove 30. The L-shaped baffle 31 is limited by the limiting rod 35 to improve the stability of the up and down movement of the L-shaped baffle 31.

[0027] The water removal mechanism 5 includes a pressure plate 28 horizontally arranged above the collection box 22, and a cylinder 29 is vertically fixedly connected to the top surface of the pressure plate 28. The top of the cylinder 29 is fixedly connected to the top surface of the box body 1. The pressure plate 28 is driven down by the cylinder 29 to squeeze out the sewage in the solid garbage. The sewage outlet 26 is opened through the bottom of one side of the collection box 22. A metal partition 27 is installed in the sewage outlet 26. The metal partition 27 is used to block the solid garbage and prevent it from entering the collection bin 21 through the sewage outlet 26.

[0028] Embodiment 2: This embodiment is an improvement based on embodiment 1: the crushing mechanism 6 includes a transfer rod 36 vertically arranged on one side of the water inlet 7, the top of the transfer rod 36 is rotatably connected to the top surface of the box body 1, the No. 1 bevel gear 38 is fixedly sleeved on the upper end of the transfer rod 36, the No. 2 bevel gear 39 is fixedly sleeved on the rotating rod 9 and is located at the opposite position of the No. 1 bevel gear 38, the No. 1 bevel gear 38 is meshed with the No. 2 bevel gear 39, and a plurality of crushing blades 37 are fixedly connected to the lower end of the transfer rod 36 in a ring shape. By rotating the plurality of crushing blades 37, it is convenient to crush larger solid waste in sewage to prevent it from clogging the filter screen 2.

[0029] Working principle: When working, firstly, the sewage to be treated is introduced into the box body 1 through the water inlet 7, and at the same time, the motor 10 is started to drive the rotating rod 9 to rotate, and the rotating rod 9 drives the No. 2 bevel gear 39 to rotate, and the No. 2 bevel gear 39 drives the transfer rod 36 to rotate through the No. 1 bevel gear 38, and the transfer rod 36 drives the crushing blade 37 to rotate, so as to facilitate the rapid cutting of the sewage discharged from the water inlet 7 and the crushing of the larger solid garbage in the sewage. The sewage discharged from the water inlet 7 falls into the limiting circular frame 8, and then is filtered by the filter net 2 and discharged into the collection bin 21. The filtered sewage in the collection bin 21 is discharged through the drain port 20, which is convenient for the next sewage treatment process. In the sewage filtration process, The rotating rod 9 drives the arc scraper 11 to rotate. When the arc scraper 11 approaches and pushes the cross bar 17 during the rotation process, the arc baffle 13 is blocked by one end of the arc guide rail 14, and the elastic force of the No. 1 spring 16 facilitates the cross bar 17 to be stored in the storage groove 15, so that the arc scraper 11 can rotate normally. The arc structure of the arc scraper 11 facilitates the solid waste on the filter screen 2 to be pushed to the center of the rotating rod 9 to prevent the solid waste from affecting the efficiency of sewage filtration. When it is necessary to process the solid waste in the limiting circular frame 8, the motor 10 first drives the arc scraper 11 to rotate in the opposite direction through the rotating rod 9. The arc structure of the arc scraper 11 and the centrifugal force generated by the rotation facilitate the solid waste to be pushed to the surrounding When the arc scraper 11 rotates, the arc scraper 11 will push the cross bar 17, and the cross bar 17 will drive the arc baffle 13 to slide in the arc guide rail 14 until the arc baffle 13 moves to one end of the arc guide rail 14. At this time, the discharge port 12 is opened, and the rotation of the arc scraper 11 facilitates the solid waste to be pushed into the discharge port 12, and then introduced into the collection box 22 through the guide inclined plate 18, and the sewage in the solid waste is drained out through the sewage outlet 26 and the metal partition 27. When the solid waste in the collection box 22 needs to be discharged, the cylinder 29 drives the pressure plate 28 to descend. During the descent of the pressure plate 28, the receiving plate 34 will be pushed first, and the receiving plate 34 will be pushed into the driving groove 32 until the pressure plate 28 descends to the receiving plate 34. At this time, the receiving plate 34 returns to the starting position through the rebound of the No. 2 spring 33. When the pressing plate 28 continues to descend, it can press the solid waste in the collecting box 22, so as to squeeze out the sewage in the solid waste, and then discharge it through the sewage outlet 26, thereby reducing the subsequent solid waste and sewage separation process and reducing cost consumption. After the pressing plate 28 is pressed, the cylinder 29 drives the pressing plate 28 to rise. During the rising process of the pressing plate 28, the receiving plate 34 will be pushed, and the receiving plate 34 drives the L-shaped baffle 31 to rise. When one end of the L-shaped baffle 31 is away from the collecting box 22, it is slidably connected by the No. 1 slope 23 and the No. 2 slope 24, so that the collecting box 22 can slide out of the box body 1, thereby greatly improving the convenience of solid waste cleaning.

[0030] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A sewage treatment device, characterized in that: include: A box body (1) is provided with a filter screen (2) horizontally at one end of the box body (1), a scraping mechanism (3) for scraping solid waste on the filter screen (2) is provided above the filter screen (2), a collecting and discharging mechanism (4) for collecting and discharging solid waste is provided on one side of the filter screen (2), a dewatering mechanism (5) for squeezing out sewage in the solid waste is provided above the collecting and discharging mechanism (4), a water inlet (7) is provided at the upper end of one side of the box body (1), and a crushing mechanism (6) for crushing larger solid waste is provided in the box body (1) on one side of the water inlet (7).

2. A sewage treatment device according to claim 1, characterized in that: The scraping mechanism (3) comprises a limiting circular frame (8) contacting and connected to the surface of the filter screen (2); one end of the limiting circular frame (8) is fixedly connected to the inner wall of the box body (1) through a connecting rod; a rotating rod (9) is vertically arranged in the limiting circular frame (8); the top surface of the box body (1) is located above the rotating rod (9) and is fixedly connected to a motor (10); the top end of the rotating rod (9) penetrates the top surface of the box body (1) and is fixedly connected to the output end of the motor (10); the lower end of the side wall of the rotating rod (9) is annularly fixedly connected to a plurality of arc-shaped scrapers (11); the bottom surfaces of the plurality of arc-shaped scrapers (11) are all slidably connected to the surface of the filter screen (2); a discharge port (12) is penetrated through the bottom of one side of the limiting circular frame (8); and an arc-shaped outer wall of the limiting circular frame (8) is slidably connected to a relative position of the discharge port (12). The arc-shaped baffle (13) is provided with an outer wall of the limiting circular frame (8) located above the arc-shaped baffle (13) and fixedly connected with an arc-shaped guide rail (14); the upper end of the arc-shaped baffle (13) is slidably connected in the arc-shaped guide rail (14); a receiving groove (15) is provided on the side of the arc-shaped baffle (13) close to the limiting circular frame (8); a cross bar (17) is slidably connected in the receiving groove (15); one end of the cross bar (17) is fixedly connected with a No. 1 spring (16); the end of the No. 1 spring (16) away from the cross bar (17) is fixedly connected with the inner wall of the receiving groove (15); the other end of the cross bar (17) is a hemispherical structure; a collecting bin (21) is provided in the box body (1) and located below the filter screen (2); a drainage outlet (20) is provided at the bottom of one side of the collecting bin (21) and penetrates through the side wall of the box body (1).

3. A sewage treatment device as claimed in claim 2, characterized in that: Both ends of the arc-shaped guide rail (14) are closed structures.

4. A sewage treatment device according to claim 1, characterized in that: Both ends of the lower side of the filter screen (2) are horizontally slidably connected to support rods (19), one side of the two support rods (19) is fixedly connected to the inner wall of the box body (1), and one end of the support rod (19) penetrates the side wall of the box body (1) and extends to the outside of the box body (1).

5. A sewage treatment device as claimed in claim 4, characterized in that: A material guide inclined plate (18) is obliquely provided on one side of the two support rods (19), and one end of the material guide inclined plate (18) is fixedly connected to one end of the two support rods (19).

6. A sewage treatment device as claimed in claim 5, characterized in that: The collecting and discharging mechanism (4) comprises a collecting box (22) arranged below the guiding inclined plate (18); a second inclined surface (24) is provided on the bottom surface of the collecting box (22); a first inclined surface (23) is provided on the inner bottom surface of the box body (1) below the second inclined surface (24); the first inclined surface (23) is slidably connected to the second inclined surface (24); an opening (25) is provided through one side of the box body (1) at a position opposite to the collecting box (22); and a side wall of the box body (1) is provided above the opening (25). A slide groove (30) is provided, an L-shaped baffle (31) is slidably connected in the slide groove (30), a side wall of one end of the L-shaped baffle (31) is slidably connected to the side wall of the collection box (22), a driving groove (32) is provided at the other end of the L-shaped baffle (31), a receiving plate (34) is slidably connected in the driving groove (32), a No. 2 spring (33) is fixedly connected at one end of the receiving plate (34), and an end of the No. 2 spring (33) away from the receiving plate (34) is fixedly connected to the inner side wall of the driving groove (32).

7. A sewage treatment device as claimed in claim 6, characterized in that: One end of the L-shaped baffle (31) is located in the slide groove (30) and vertically penetrates through the slide groove (30) to be slidably connected to a limit rod (35), and the two ends of the limit rod (35) are respectively fixedly connected to the inner top surface and the inner bottom surface of the slide groove (30).

8. A sewage treatment device as claimed in claim 6, characterized in that: The water removal mechanism (5) comprises a pressure plate (28) horizontally arranged above the collection box (22); a cylinder (29) is vertically fixedly connected to the top surface of the pressure plate (28); the top of the cylinder (29) is fixedly connected to the top surface of the box body (1); a sewage outlet (26) is provided through the bottom of one side of the collection box (22); a metal partition (27) is installed in the sewage outlet (26).

9. A sewage treatment device as claimed in claim 2, characterized in that: The crushing mechanism (6) comprises a transfer rod (36) vertically arranged on one side of the water inlet (7), the top end of the transfer rod (36) being rotatably connected to the top surface of the box body (1), a first bevel gear (38) being fixedly sleeved on the upper end of the transfer rod (36), a second bevel gear (39) being fixedly sleeved on the rotating rod (9) at a position relative to the first bevel gear (38), the first bevel gear (38) being meshingly connected to the second bevel gear (39), and a plurality of crushing blades (37) being fixedly connected in an annular shape on the lower end of the transfer rod (36).

10. A sewage treatment device and a sewage treatment method according to any one of claims 1 to 9, characterized in that: The treatment method comprises the following steps: S1: introducing sewage to be treated into the box body (1) through the water inlet (7), and starting the motor (10) to drive the rotating rod (9) to rotate, the rotating rod (9) drives the transfer rod (36) to rotate through the meshing connection of the second bevel gear (39) and the first bevel gear (38), and the transfer rod (36) drives the crushing blade (37) to rotate, so as to facilitate rapid cutting of the sewage discharged from the water inlet (7) and to facilitate crushing of larger solid waste in the sewage. The sewage discharged from the water inlet (7) falls into the limiting circular frame (8), and is filtered by the filter screen (2) and then discharged into the collection bin (21). The sewage in the collection bin (21) is discharged through the drain outlet (20), so as to facilitate the next sewage treatment process. S2: During the sewage filtration process, the rotating rod (9) drives the arc-shaped scraper (11) to rotate, and the arc-shaped structure of the arc-shaped scraper (11) facilitates the solid waste on the filter screen (2) to be concentrated and pushed toward the center of the rotating rod (9), thereby preventing the solid waste from accumulating on the surface of the filter screen (2) and affecting the sewage filtration efficiency; S3: When the solid waste in the limiting circular frame (8) needs to be processed, the motor (10) first drives the arc scraper (11) to rotate in the opposite direction through the rotating rod (9). The arc structure of the arc scraper (11) and the centrifugal force generated by the rotation facilitate the solid waste to be pushed to the surroundings. While the arc scraper (11) rotates, the arc scraper (11) pushes the cross bar (17), and the cross bar (17) drives the arc baffle (13) to slide in the arc guide rail (14) until the arc baffle (13) moves to one end of the arc guide rail (14). At this time, the discharge port (12) is opened, and the rotation of the arc scraper (11) facilitates the solid waste to be pushed into the discharge port (12), and then introduced into the collection box (22) through the guide inclined plate (18); S4: The sewage in the solid waste can be easily drained out through the sewage outlet (26) and then fall into the collection bin (21). When the solid waste in the collection bin (22) needs to be discharged, the cylinder (29) drives the pressing plate (28) to descend. The descending pressing plate (28) presses the solid waste in the collection bin (22), so that the sewage in the solid waste can be squeezed out and then discharged through the sewage outlet (26), thereby reducing the subsequent solid waste and sewage separation process and reducing cost consumption; S5: After the pressing plate (28) is pressed, the cylinder (29) drives the pressing plate (28) to rise. During the rising process, the pressing plate (28) pushes the receiving plate (34), and the receiving plate (34) drives the L-shaped baffle plate (31) to rise. When one end of the L-shaped baffle plate (31) is away from the collection box (22), the first inclined surface (23) and the second inclined surface (24) are slidably connected, so that the collection box (22) slides out of the box body (1), so that the solid waste in the collection box (22) can be cleaned up conveniently.

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