Anti-blocking equipment for sewage treatment and use method of anti-blocking equipment

Abstract

The invention relates to anti-blocking equipment for sewage treatment and a use method thereof, and relates to the technical field of sewage treatment. The sewage treatment device comprises a sewage pipe and a filter screen arranged in the sewage pipe, a scraping assembly is arranged in the sewage pipe and used for cleaning dirt attached to the surface of the filter screen. A dredging assembly is arranged in the sewage pipe and used for dredging meshes of the filter screen, and the scraping assembly, the filter screen and the dredging assembly are sequentially arranged in the flowing direction of sewage in the sewage pipe; a flushing assembly is arranged in the sewage pipe and is used for flushing the filter screen; the device has the effects of reducing blockage of the filter screen and guaranteeing the filtering effect of the filter screen.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to an anti-blocking device for sewage treatment and a method of using the same. Background Art

[0002] With the acceleration of industrialization and urbanization, water pollution is becoming increasingly serious, and the efficient operation of sewage treatment facilities has become a top priority in environmental protection. However, in actual use, since sewage contains a large amount of suspended matter, solid waste and other impurities, it is very easy to cause pipe blockage, which seriously affects the effect and efficiency of sewage treatment.

[0003] At present, common sewage treatment anti-blocking measures mainly include mechanical grid interception method, air flotation separation method, biodegradation method, etc. Among them, the mechanical grid interception method filters out larger debris by setting grids with different apertures, thereby reducing the blockage phenomenon inside the sewage pipe.

[0004] Regarding the above-mentioned related technologies, the method of intercepting debris with a filter is simple to construct, but it requires regular manual cleaning of the debris, otherwise it is easy to cause clogging of the filter, affecting the filtering effect of the filter, so it needs to be improved. Summary of the invention

[0005] In order to reduce the clogging of the filter and ensure the filtering effect of the filter, the present application provides an anti-clogging device for sewage treatment and a method of using the same.

[0006] In the first aspect, the present application provides a sewage treatment anti-blocking device, which adopts the following technical solution: A sewage treatment anti-blocking device comprises a sewage pipe and a filter screen arranged inside the sewage pipe; a scraper assembly is arranged inside the sewage pipe for cleaning dirt attached to the surface of the filter screen; a dredging assembly is arranged inside the sewage pipe for dredging the mesh of the filter screen, and the scraper assembly, the filter screen and the dredging assembly are arranged in sequence along the flow direction of sewage inside the sewage pipe; a flushing assembly is arranged inside the sewage pipe for flushing the filter screen.

[0007] By adopting the above technical scheme, the scraping component scrapes the side wall of the filter screen away from the dredging component; the dredging component dredges the mesh of the filter screen; the flushing component flushes and cleans the filter screen after dredging and scraping, thereby achieving rapid dredging and flushing of the filter screen, reducing the clogging of the filter screen, and ensuring the filtering effect of the filter screen.

[0008] Preferably, the scraper assembly includes a scraper frame, a rotating shaft, a scraper knife, a scraper motor and a scraper cylinder; the scraper frame is slidably arranged inside the sewage pipe, the rotating shaft is rotatably arranged on the scraper frame, the scraper knife is arranged at the end of the rotating shaft facing the scraper frame, and the scraper motor is arranged on the scraper frame to drive the rotating shaft to rotate; the scraper cylinder is arranged between the scraper frame and the sewage pipe to drive the scraper frame to approach or move away from the filter.

[0009] By adopting the above technical solution, the scraper motor drives the scraper knife to rotate through the rotating shaft, and the scraper cylinder drives the scraper frame to move to adjust the distance between the scraper knife and the filter screen, thereby cutting and scraping away the debris and dirt on the side of the filter screen facing the scraper frame, reducing the phenomenon of large-volume debris clogging the filter screen.

[0010] Preferably, the dredging assembly includes a mounting grid, several groups of dredging rods and a dredging cylinder; the mounting grid is slidably arranged inside the sewage pipe, all the dredging rods are arranged on the side wall of the mounting grid facing the filter net, and the dredging cylinder is arranged between the sewage pipe and the mounting grid to drive the mounting grid close to or away from the filter net.

[0011] By adopting the above technical solution, the dredging cylinder drives the installation frame to drive the dredging rod to move, and the dredging rod is used to penetrate the mesh of the filter to achieve dredging of the mesh of the filter, thereby reducing the phenomenon of debris clogging the filter.

[0012] Preferably, the flushing assembly includes a water inlet pipe, a telescopic hose, a pressure pump and a nozzle; the water inlet pipe is arranged on the sewage pipe, the telescopic hose is connected between the water inlet pipe and the mounting grid, and the pressure pump is connected between the water inlet pipe and the telescopic hose; a water conducting cavity is opened inside the mounting grid, and the telescopic hose is connected with the inside of the water conducting cavity, each of the dredging rods is penetrated by a water conducting hole connected with the water conducting cavity, the nozzle is connected to the side wall of each group of dredging rods facing the filter net, and each of the nozzles is connected with the water conducting hole on the corresponding dredging rod.

[0013] By adopting the above technical solution, the water inlet pipe supplies water to the water-conducting cavity inside the movable installation grid through the telescopic hose, and the pressure pump increases the water pressure inside the water-conducting cavity to cooperate with the nozzle to spray high-pressure water to flush the filter.

[0014] Preferably, the sewage pipe is provided with an installation opening, a installation frame is slidably provided inside the installation opening, a installation notch is provided inside the installation frame for the filter to be inserted into, a fastening plate for closing the installation notch is provided on the installation frame, and fasteners are provided between the fastening plate and the installation frame for fastening the fastening plate and the installation frame; a moving component is provided on the sewage pipe for driving the installation frame to drive the filter to move.

[0015] By adopting the above technical solution, the fastening plate and the fastener cooperate with each other to achieve a detachable connection between the filter screen and the installation frame; when the filter screen is seriously clogged and needs to be repaired or replaced, the moving component drives the installation frame to drive the filter screen out of the sewage pipe, so as to facilitate the convenient replacement of the filter screen inside the installation frame, thereby ensuring the filtering efficiency of the filter screen inside the sewage pipe.

[0016] Preferably, the moving assembly includes a fixed frame, a moving screw, a moving block and a moving motor; the fixed frame is arranged on the sewage pipe, the moving screw is rotatably arranged on the fixed frame, the moving block is arranged on the mounting frame, the moving screw passes through the moving block, and the moving screw is threadedly connected to the moving block; the moving motor is arranged on the fixed frame to drive the moving screw to rotate.

[0017] By adopting the above technical solution, the output end of the moving motor drives the moving screw to rotate, and the rotating moving screw drives the moving block and the installation frame to drive the installation frame to move the filter.

[0018] Preferably, a cleaning assembly is provided at the bottom of the sewage pipe for cleaning sludge inside the sewage pipe.

[0019] By adopting the above technical solution, the cleaning component cleans the debris and sludge accumulated inside the sewage pipe, reducing the amount of debris and sludge accumulated at the filter, thereby reducing the clogging of the filter and ensuring the filtering effect of the filter.

[0020] Preferably, the cleaning assembly includes a cleaning pipe, a cleaning shaft, a cleaning blade, a cleaning motor, a waste box, a suction pump and a feeding pipe; the cleaning pipe is arranged at the bottom of the sewage pipe, and a connecting port for connecting to the cleaning pipe is opened through the bottom wall of the sewage pipe; the cleaning shaft is rotatably arranged inside the cleaning pipe, the cleaning blade is spirally arranged on the cleaning shaft, and the cleaning motor is arranged on the cleaning pipe to drive the cleaning shaft to rotate; the waste box is connected to the cleaning pipe, the suction pump is connected to the waste box, and the feeding pipe is connected to the output end of the suction pump.

[0021] By adopting the above technical scheme, the sludge inside the sewage pipe falls into the cleaning pipe due to its own gravity, and the cleaning motor drives the cleaning shaft to drive the cleaning blades to rotate. The rotating cleaning blades drive the sludge inside the cleaning pipe, so that the sludge inside the cleaning pipe is moved to the waste box for temporary storage. Then the sludge inside the waste box can be sucked out by a suction pump and discharged through the feeding pipe, thereby reducing the waste of sludge.

[0022] Preferably, a lifting plate is provided inside the sewage pipe, a soft scraper plate abutting against the filter screen is provided on the side wall of the lifting plate facing the filter screen, and a lifting cylinder is provided on the sewage pipe for driving the lifting plate to approach or move away from the cleaning pipe.

[0023] By adopting the above technical solution, the output end of the lifting cylinder drives the lifting plate to drive the scraper soft plate to descend, so as to scrape off the impurities attached to the filter screen, reduce the clogging of the filter screen, and ensure the filtering effect of the filter screen.

[0024] Second, The present application provides a method for using an anti-blocking device for sewage treatment, comprising the following steps: Scraping: The scraping component scrapes the side wall of the filter screen away from the dredging component; Dredging: The dredging component dredges the mesh of the filter; Flushing: The flushing component cleans the filter screen after dredging and scraping.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The scraping component is set to scrape the side wall of the filter away from the dredging component; the dredging component dredges the mesh of the filter; the flushing component flushes and cleans the filter after dredging and scraping, thereby realizing rapid dredging and flushing of the filter, reducing the clogging of the filter, and ensuring the filtering effect of the filter; 2. The fastening plate and the fastener cooperate with each other to realize the detachable connection between the filter and the installation frame; when the filter is seriously blocked and needs to be repaired or replaced, the moving component drives the installation frame to drive the filter out of the sewage pipe, so as to facilitate the convenient replacement of the filter inside the installation frame, thereby ensuring the filtering efficiency of the filter inside the sewage pipe; 3. By setting up a cleaning component to clean the debris and sludge accumulated inside the sewage pipe, the amount of debris and sludge accumulated at the filter is reduced, thereby reducing the clogging of the filter and ensuring the filtering effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a structural schematic diagram of an anti-blocking device for sewage treatment and a method of using the same according to an embodiment of the present application.

[0027] Figure 2 It is a cross-sectional schematic diagram used to illustrate the connection relationship between the dredging component and the filter screen.

[0028] Figure 3 It is an exploded diagram used to illustrate the connection relationship between the mobile component and the filter.

[0029] Figure 4 It is a cross-sectional schematic diagram used to illustrate the connection relationship between the cleaning component and the sewage pipe.

[0030] Description of reference numerals: 1. Sewage pipe; 11. Filter; 12. Mounting port; 13. Connecting port; 2. Scraper assembly; 21. Scraper frame; 22. Rotating shaft; 23. Scraper knife; 24. Scraper motor; 25. Scraper cylinder; 3. Dredging assembly; 31. Mounting grid; 311. Water guide cavity; 32. Dredging rod; 321. Water guide hole; 33. Dredging cylinder; 4. Flushing assembly; 41. Water inlet pipe; 42. Telescopic hose; 43. Pressure pump; 44 , nozzle; 5, mounting frame; 51, mounting notch; 52, fastening plate; 53, fastener; 6, moving assembly; 61, fixing frame; 62, moving screw; 63, moving block; 64, moving motor; 7, cleaning assembly; 71, cleaning pipe; 72, cleaning shaft; 73, cleaning blade; 74, cleaning motor; 75, waste box; 76, suction pump; 77, feeding pipe; 8, lifting plate; 81, scraper soft plate; 82, lifting cylinder. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The embodiment of the present application discloses an anti-blocking device for sewage treatment and a method of using the same, so as to reduce the blockage of a filter screen and ensure the filtering effect of the filter screen.

[0033] Reference Figure 1 and Figure 2 A sewage treatment anti-blocking device includes a sewage pipe 1 and a filter screen 11 installed inside the sewage pipe 1; a scraper assembly 2 for cleaning dirt attached to the surface of the filter screen 11 is installed inside the sewage pipe 1, and a dredging assembly 3 for dredging the mesh of the filter screen 11 is installed inside the sewage pipe 1, and the scraper assembly 2, the filter screen 11 and the dredging assembly 3 are installed in sequence along the flow direction of the sewage inside the sewage pipe 1.

[0034] Reference Figure 1 and Figure 2The scraper assembly 2 includes a scraper frame 21, a rotating shaft 22, a scraper blade 23, a scraper motor 24 and a scraper cylinder 25; the scraper cylinder 25 is fixedly connected to the inner wall of the sewage pipe 1, the output end of the scraper cylinder 25 faces the filter screen 11, and the extension direction of the output end of the scraper cylinder 25 is parallel to the length direction of the sewage pipe 1. The scraper frame 21 is fixedly connected to the output end of the scraper cylinder 25, and the scraper cylinder 25, the scraper frame 21, and the filter screen 11 are all arranged in sequence along the flow direction of the sewage inside the sewage pipe 1.

[0035] The rotating shaft 22 is rotatably mounted on the scraper frame 21, and the scraper blades 23 are fixedly mounted on the end of the rotating shaft 22 facing the scraper frame 21, and the scraper blades 23 are spaced apart along the circumference of the rotating shaft 22. The scraper motor 24 is fixedly connected to the scraper frame 21, and the output end of the scraper motor 24 is transmission-connected to the rotating shaft 22 to drive the rotating shaft 22 to drive the scraper blades 23 to rotate, thereby cutting and cleaning the debris on the surface of the filter screen 11.

[0036] Reference Figure 1 and Figure 2 The dredging assembly 3 includes a mounting grid 31, a plurality of groups of dredging rods 32 and a dredging cylinder 33; the dredging cylinder 33 is fixedly connected to the inside of the sewage pipe 1, and the telescopic direction of the output end of the dredging cylinder 33 is parallel to the length direction of the sewage pipe 1. The mounting grid 31 is fixedly connected to the output end of the dredging cylinder 33, and the mounting grid 31 is located on the side of the filter screen 11 away from the scraper frame 21. All the dredging rods 32 are integrally formed on the side wall of the mounting grid 31 facing the filter screen 11. In this embodiment, the dredging rods 32 are respectively arranged in a one-to-one correspondence with the meshes of the filter screen 11, so that each group of dredging rods 32 can penetrate and dredge the corresponding meshes.

[0037] Reference Figure 1 and Figure 2 A flushing assembly 4 is installed inside the sewage pipe 1 for flushing the filter 11. The flushing assembly 4 includes a water inlet pipe 41, a telescopic hose 42, a pressure pump 43 and a nozzle 44; the pressure pump 43 is fixedly connected to the outside of the sewage pipe 1, the water inlet pipe 41 is fixedly connected to the input end of the pressure pump 43, the telescopic hose 42 is fixedly connected to the output end of the pressure pump 43 through a pipeline, and the telescopic hose 42 is located inside the sewage pipe 1. In this embodiment, the telescopic hose 42 can be made of rubber that is soft and easy to fold.

[0038] Reference Figure 1 and Figure 2A water-conducting cavity 311 is provided inside the mounting grid 31, and the telescopic hose 42 is connected to the inside of the water-conducting cavity 311. A water-conducting hole 321 connected to the water-conducting cavity 311 is provided through each dredging rod 32. In this embodiment, the nozzles 44 are respectively arranged in a one-to-one correspondence with the dredging rods 32. Each group of nozzles 44 is connected and installed on the side wall of the corresponding dredging rod 32 facing the filter screen 11, and each nozzle 44 is connected to the water-conducting hole 321 on the corresponding dredging rod 32.

[0039] Reference Figure 2 and Figure 3 The sewage pipe 1 is provided with an installation opening 12, and a mounting frame 5 is slidably inserted inside the installation opening 12. In this embodiment, the mounting frame 5 is U-shaped. An installation notch 51 is provided on the inner side wall of the mounting frame 5 for the filter screen 11 to slide into. A fastening plate 52 is installed on the mounting frame 5. The side wall of the fastening plate 52 facing the mounting frame 5 and the side wall of the filter screen 11 facing away from the mounting frame 5 are fitted to each other, and a fastener 53 is threadedly connected between the fastening plate 52 and the mounting frame 5. In this embodiment, the fastener 53 can be a fastening bolt to fasten the fastening plate 52 and the mounting frame 5.

[0040] Reference Figure 2 and Figure 3 A moving assembly 6 is installed on the sewage pipe 1 to drive the installation frame 5 to move the filter screen 11. The moving assembly 6 includes a fixing frame 61, a moving screw 62, a moving block 63 and a moving motor 64; the fixing frame 61 is welded and fixed on the sewage pipe 1, and the moving screw 62 is rotatably installed on the fixing frame 61; and the fixing frame 61 and the moving screw 62 are relatively distributed on both sides of the installation frame 5 in the width direction.

[0041] Reference Figure 2 and Figure 3 The moving blocks 63 are welded to both sides of the installation frame 5 in the width direction, and each set of moving screws 62 penetrates the moving blocks 63 on the same side of the installation frame 5, and the moving screws 62 are threadedly connected to the moving blocks 63. The moving motor 64 is installed on each set of fixing frames 61, and the output end of the moving motor 64 is drivingly connected to the end of the adjacent moving screw 62 to drive the moving screw 62 to rotate.

[0042] Reference Figure 2 and Figure 4 A cleaning assembly 7 is installed at the bottom of the sewage pipe 1 to clean the sludge inside the sewage pipe 1. The cleaning assembly 7 includes a cleaning pipe 71, a cleaning shaft 72, a cleaning blade 73, a cleaning motor 74, a waste box 75, a suction pump 76 and a feeding pipe 77; the cleaning pipe 71 is installed at the bottom of the sewage pipe 1, and the cleaning pipe 71 is located on the side of the filter screen 11 facing the scraper frame 21. A connecting port 13 is opened through the bottom wall of the sewage pipe 1 to connect the cleaning pipe 71 with the inside of the sewage pipe 1.

[0043] Reference Figure 2 and Figure 4 The cleaning shaft 72 is rotatably mounted inside the cleaning tube 71, and the cleaning shaft 72 is extended along the length direction of the cleaning tube 71. The cleaning blade 73 is spirally formed on the cleaning shaft 72, and the cleaning motor 74 is fixedly mounted on the cleaning tube 71, and the output end of the cleaning motor 74 is transmission-connected with the end of the cleaning shaft 72 to drive the cleaning blade 73 to rotate. The waste box 75 is connected and mounted on the end of the cleaning tube 71 away from the cleaning motor 74, and the suction pump 76 is connected and mounted inside the waste box 75 through a pipeline, and the feeding pipe 77 is fixedly connected to the output end of the suction pump 76 to output the sludge inside the waste box 75.

[0044] Reference Figure 2 and Figure 4 A lifting cylinder 82 is installed on the top of the sewage pipe 1. The lifting cylinder 82 is located on the side of the filter screen 11 facing the scraper frame 21, and the output end of the lifting cylinder 82 penetrates the sewage pipe 1. A lifting plate 8 is fixedly installed on the output end of the lifting cylinder 82, and the lifting plate 8 can penetrate the connecting port 13. A rubber scraper soft plate 81 is glued to the side wall of the lifting plate 8 facing the filter screen 11, and the side wall of the scraper soft plate 81 away from the lifting plate 8 is in contact with the side wall of the filter screen 11 facing the lifting plate 8.

[0045] The implementation principle of the anti-blocking device for sewage treatment in the embodiment of the present application is: The output end of the dredging cylinder 33 drives the mounting frame to drive the dredging rod 32 to gradually approach the filter screen 11, and the dredging rod 32 penetrates the mesh of the filter screen 11 and dredges the mesh of the filter screen 11. The output end of the scraping cylinder 25 drives the scraping frame 21 to drive the scraping knife 23 to gradually approach the filter screen 11, and the output end of the scraping motor 24 drives the rotating shaft 22 to drive the scraping knife 23 to rotate, so as to remove the dirt attached to the side wall of the filter screen 11 facing the scraping frame 21.

[0046] The water inlet pipe 41 supplies water to the telescopic hose 42 and the water guiding cavity 311, and the pressure pump 43 pressurizes the water inside the water guiding cavity 311, so that the nozzle 44 sprays high-pressure water to flush the mesh of the filter screen 11, thereby achieving rapid unblocking and flushing of the filter screen 11, reducing the blockage of the filter screen 11, and ensuring the filtering effect of the filter screen 11.

[0047] The present application also discloses a method for using a sewage treatment anti-blocking device, comprising the following steps: Scraping: The scraping component 2 scrapes the side wall of the filter screen 11 away from the dredging component 3; Dredging: the dredging component 3 dredges the mesh of the filter screen 11; Flushing: The flushing component 4 cleans the filter screen 11 after dredging and scraping.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sewage treatment anti-blocking device, comprising a sewage pipe (1) and a filter screen (11) arranged inside the sewage pipe (1); characterized in that: The sewage pipe (1) is provided with a scraper assembly (2) for cleaning dirt adhering to the surface of the filter screen (11); the sewage pipe (1) is provided with a dredging assembly (3) for dredging the mesh of the filter screen (11), and the scraper assembly (2), the filter screen (11) and the dredging assembly (3) are arranged in sequence along the flow direction of sewage in the sewage pipe (1); the sewage pipe (1) is provided with a flushing assembly (4) for flushing the filter screen (11).

2. The anti-blocking equipment for sewage treatment according to claim 1, characterized in that: The scraper assembly (2) comprises a scraper frame (21), a rotating shaft (22), a scraper blade (23), a scraper motor (24) and a scraper cylinder (25); the scraper frame (21) is slidably arranged inside the sewage pipe (1); the rotating shaft (22) is rotatably arranged on the scraper frame (21); the scraper blade (23) is arranged at the end of the rotating shaft (22) facing the scraper frame (21); the scraper motor (24) is arranged on the scraper frame (21) to drive the rotating shaft (22) to rotate; the scraper cylinder (25) is arranged between the scraper frame (21) and the sewage pipe (1) to drive the scraper frame (21) to approach or move away from the filter screen (11).

3. The anti-blocking equipment for sewage treatment according to claim 1, characterized in that: The dredging assembly (3) comprises a mounting grid (31), a plurality of groups of dredging rods (32) and a dredging cylinder (33); the mounting grid (31) is slidably arranged inside the sewage pipe (1), all the dredging rods (32) are arranged on the side wall of the mounting grid (31) facing the filter screen (11), and the dredging cylinder (33) is arranged between the sewage pipe (1) and the mounting grid (31) to drive the mounting grid (31) to approach or move away from the filter screen (11).

4. The anti-blocking equipment for sewage treatment according to claim 3 is characterized by: The flushing assembly (4) comprises a water inlet pipe (41), a telescopic hose (42), a pressure pump (43) and a nozzle (44); the water inlet pipe (41) is arranged on the sewage pipe (1); the telescopic hose (42) is arranged in communication between the water inlet pipe (41) and the mounting grid (31); the pressure pump (43) is arranged in communication between the water inlet pipe (41) and the telescopic hose (42); a water guide cavity (311) is provided inside the mounting grid (31), and the telescopic hose (42) is communicated with the inside of the water guide cavity (311); each of the dredging rods (32) is provided with a water guide hole (321) which is communicated with the water guide cavity (311); the nozzle (44) is arranged in communication with the side wall of each group of dredging rods (32) facing the filter screen (11), and each of the nozzles (44) is communicated with the water guide hole (321) on the corresponding dredging rod (32).

5. The anti-blocking equipment for sewage treatment according to claim 1, characterized in that: The sewage pipe (1) is provided with a mounting opening (12) through which a mounting frame (5) is slidably penetrated. The mounting frame (5) is provided with a mounting notch (51) for the filter screen (11) to be inserted into. The mounting frame (5) is provided with a fastening plate (52) for closing the mounting notch (51). A fastening member (53) is provided between the fastening plate (52) and the mounting frame (5) for fastening the fastening plate (52) and the mounting frame (5). The sewage pipe (1) is provided with a moving assembly (6) for driving the mounting frame (5) to drive the filter screen (11) to move.

6. The anti-blocking equipment for sewage treatment according to claim 5, characterized in that: The moving assembly (6) comprises a fixed frame (61), a moving screw (62), a moving block (63) and a moving motor (64); the fixed frame (61) is arranged on the sewage pipe (1), the moving screw (62) is rotatably arranged on the fixed frame (61), the moving block (63) is arranged on the mounting frame (5), the moving screw (62) passes through the moving block (63), and the moving screw (62) is threadedly connected to the moving block (63); the moving motor (64) is arranged on the fixed frame (61) to drive the moving screw (62) to rotate.

7. The anti-blocking equipment for sewage treatment according to claim 1, characterized in that: A cleaning component (7) is provided at the bottom of the sewage pipe (1) for cleaning the sludge inside the sewage pipe (1).

8. The anti-blocking equipment for sewage treatment according to claim 7, characterized in that: The cleaning assembly (7) comprises a cleaning pipe (71), a cleaning shaft (72), a cleaning blade (73), a cleaning motor (74), a waste box (75), a suction pump (76) and a feeding pipe (77); the cleaning pipe (71) is arranged at the bottom of the sewage pipe (1), and a connecting port (13) for connecting with the cleaning pipe (71) is provided through the bottom wall of the sewage pipe (1); the cleaning shaft (72) is rotatably arranged inside the cleaning pipe (71), the cleaning blade (73) is spirally arranged on the cleaning shaft (72), and the cleaning motor (74) is arranged on the cleaning pipe (71) to drive the cleaning shaft (72) to rotate; the waste box (75) is connected to the cleaning pipe (71), the suction pump (76) is connected to the waste box (75), and the feeding pipe (77) is connected to the output end of the suction pump (76).

9. The anti-blocking equipment for sewage treatment according to claim 8, characterized in that: A lifting plate (8) is arranged inside the sewage pipe (1), and a scraper soft plate (81) is arranged on the side wall of the lifting plate (8) facing the filter screen (11) and abutting against the filter screen (11). A lifting cylinder (82) is arranged on the sewage pipe (1) for driving the lifting plate (8) to approach or move away from the cleaning pipe (71).

10. A method for using the anti-blocking device for sewage treatment according to any one of claims 1 to 9, characterized in that: The steps include: Scraping: The scraping component (2) scrapes the side wall of the filter screen (11) away from the dredging component (3); Dredging: the dredging component (3) dredges the mesh of the filter screen (11); Flushing: The flushing component (4) cleans the filter screen (11) after dredging and scraping.

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