A municipal sewage treatment plant

Abstract

This application discloses a municipal sewage treatment device, relating to the field of municipal engineering technology. The inclined filter assembly includes two rotating shafts, a first filter screen, a fixing component, and a filter unblocking component. The axis of each rotating shaft is parallel to the length of a water-retaining trough. The rotating shaft on the left, externally connected to a motor, is located inside the water-retaining trough, while the rotating shaft on the right is close to the right side of the base's internal space. The first filter screen is an annular belt densely covered with filter holes, tautly fitted onto the two rotating shafts, with its right side tightly against the scraping component. The fixing component tilts and fixes the filter assembly to the right side of the base. The filter unblocking component is a combination of multiple cylindrical bladders evenly distributed between the two rotating shafts. The cylindrical bladders are parallel to the axes of the rotating shafts, and each cylindrical bladder has densely distributed rubber protrusions on its shaft. When the filter assembly is running, these rubber protrusions extend into the filter holes of the first filter screen, pushing out debris from within the filter holes. This achieves the technical effect of effectively filtering sewage.

Description

Technical Field

[0001] This invention relates to the field of municipal engineering technology, and in particular to a municipal sewage treatment device. Background Technology

[0002] Wastewater treatment refers to the process of removing pollutants from urban wastewater to purify it so that it meets the water quality requirements for discharge into a water body or for reuse. It mainly includes domestic sewage and some industrial wastewater. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly becoming a part of ordinary people's daily lives.

[0003] In related technologies, municipal sewage purification systems include treatment tanks with inlet and outlet pipes connected to their ends, respectively. Inside the treatment tanks are filter screens and collection containers. The collection containers are placed at the end of the filter screens. The inlet of the filter screen is located above the front end of the filter screen, and the outlet of the filter screen is located below the collection containers. Sewage is discharged from the inlet pipe, and after being filtered by the filter screen, impurities are transported to the collection containers. The filtered water is discharged from the drain pipe, thus completing the preliminary purification treatment of sewage.

[0004] However, after long-term use, the filter pores on the surface of the filter screen are prone to clogging, which will affect the filtration efficiency of sewage. If the filter screen needs to be cleaned, the equipment needs to stop the sewage from entering before the filter screen can be cleaned, which will also affect the efficiency of the sewage treatment equipment in the initial purification of sewage. Therefore, the existing technology needs a municipal sewage treatment equipment that can reduce the frequency of filter screen cleaning and effectively filter sewage. Summary of the Invention

[0005] This application provides a municipal sewage treatment device that solves the technical problem in the prior art where impurities after the initial purification of municipal sewage clog the filter screen, resulting in limited sewage filtration effect. The device effectively filters sewage during the initial purification process, thereby reducing the frequency of filter screen cleaning and improving the filtration efficiency of municipal sewage.

[0006] This application provides a municipal wastewater treatment device, which includes a base, a filter assembly, a rotating assembly, and a storage assembly;

[0007] The base has a water-avoiding groove on the left inner wall for positioning the filter assembly;

[0008] The filter assembly is an inclined conveyor belt structure, including two rotating shafts, a first filter screen, a fixing component, and a filter unblocking component.

[0009] The axis of the rotating shaft is parallel to the length of the water-avoiding trough. The rotating shaft of the motor connected to the left side is located inside the water-avoiding trough, and the rotating shaft of the right side is close to the right side of the internal space of the base.

[0010] The first filter screen is an annular belt with numerous filter holes, which is taut and fitted onto two rotating shafts, with the right side tightly attached to the scraping component.

[0011] The fixing component tilts and fixes the filter component to the right side of the base 1;

[0012] The filter and unblocking assembly is a combination of multiple cylindrical bladders, evenly distributed between rotating shafts. The cylindrical bladders are parallel to the axis of the rotating shafts. Each cylindrical bladder is densely covered with rubber protrusions. When the first filter screen rotates, the rubber protrusions will extend into the filter holes of the first filter screen and push out the debris inside the filter holes.

[0013] The storage component is used to store debris from the scraping component.

[0014] Preferably, the fixing assembly includes a first fixing seat, a second fixing seat, and a fixing rod;

[0015] The first fixing seat rotates and fixes the left rotating shaft in the water-avoiding tank to prevent the rotating shaft from directly contacting the sewage.

[0016] The second fixing seat is vertically positioned on the right side of the interior space of the base, and the right rotating shaft is rotated and fixed on the left side of the scraping assembly;

[0017] The two ends of the fixed rod are located at the connection between two fixed seats and two rotating shafts. Multiple cylindrical bladders of the filter and unblocking component are fixed at intervals on the rod body to facilitate the infiltration of filtered sewage.

[0018] Preferably, the filter assembly further includes two water-blocking rings;

[0019] The water-blocking rings are located on both sides of the first filter screen and are composed of multiple water-blocking plates.

[0020] The water-blocking plate is a rectangular plate made of rubber. Its bottom surface is fixed to the two sides of the first filter screen. Each water-blocking plate is tightly attached to each other to prevent impurities from falling from the edge of the first filter screen.

[0021] Preferably, the rotating assembly is located above the filter assembly and includes a boom, four suspension ropes, a rotating base, a rotating rod, a drive belt, and a rotating disk;

[0022] The rotating base is located above the filter assembly and has a reversible motor inside. The bottom surface is rotatably connected to a rotating rod. The width of the rotating base is equal to the length of the rotating shaft, and the length is equal to the distance between the first bladder on the left and the first bladder on the right inside the filter assembly.

[0023] The rotating rods are perpendicular to the first filter screen and there are multiple of them. Each rotating rod has a drive belt wrapped around its upper end. One of the rotating rods serves as the main shaft and is driven to rotate by a motor. The other rotating rods are driven to rotate by the drive belt, so that the rotating rods are linked together and all the rotating rods can be controlled synchronously.

[0024] Preferably, the rotating disk is a frustum-shaped disc that is narrower at the top and wider at the bottom. The design of the sloping side facilitates the passage of solid debris. Its bottom is lightly pressed against the first filter screen, and its top is fixed to the rotating rod. When the rotating rod rotates, the rotating disk will clear the sticky debris adhering to the first filter screen by rotating itself.

[0025] Preferably, the drive belt is wrapped around the rotating rod and is S-shaped on each row of rotating rods, so that adjacent rotating disks rotate in opposite directions. The rotational forces in different directions generate a thrust in the same direction at the gap between the rotating disks, which facilitates the transport of debris.

[0026] Preferably, the boom is a lifting device that is fixed to the top of the internal space of the base, and the rotating base is suspended above the first filter screen;

[0027] The four suspension ropes connect downwards from the boom to the rotating base, making the rotating base parallel to the filter assembly. When the boom retracts the suspension ropes, the rotating base rises 5 centimeters and then stops. The reverse movement of the rotating rod, combined with the height of the rising rotating base, throws the debris tangled on the rod into the first filter screen.

[0028] Preferably, the storage component is located on the right side of the interior space of the base, and performs filtered debris treatment, including a scraping component, a storage box, a support column, and a lifting component;

[0029] The scraping assembly is a hollow box with openings on both the left and right sides. The bottom left end is in close contact with the first filter screen, and a storage box is provided on the right side. When the rotating shaft rotates, the scraping assembly scrapes the debris on the first filter screen from the bottom left end and then sends the debris into the storage box through the internal inclined surface.

[0030] The storage box is a hollow box with an inner liner. Both the bottom wall of the storage box and the bottom wall of the inner liner have multiple filter holes to further control the moisture on the debris.

[0031] Preferably, the lifting assembly includes a drum, a traction rope, a second filter screen, a magnetic block 4, a support plate, a first magnetic block, and a second magnetic block;

[0032] The drum is located directly above the storage tank, and the storage tank is raised and lowered by a traction rope; the second filter screen is located between the scraping assembly and the storage tank, with a magnetic block connected above and a horizontally fixed support below.

[0033] The plate, together with the magnetic block and the support plate, forms an L-shaped structure;

[0034] The magnetic block is the same length and thickness as the second filter screen, and the quadrilateral formed by the left side of the magnetic block and the left side of the second filter screen is equal to the right opening of the scraping component.

[0035] The first magnetic block is fixed to the support plate, and the storage box is attached above it. When the storage box rises, the first magnetic block will drive the support plate to rise.

[0036] The second magnetic block is fixed to the top right side of the internal space of the scraping assembly. When the storage box rises, the rising magnetic block will be attracted to the second magnetic block, so that the quadrilateral formed by the magnetic block and the second filter screen and the scraping assembly form a sealed space for temporary storage of filtered debris.

[0037] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0038] By optimizing a municipal wastewater treatment device that includes a filter assembly, a rotating assembly, and a storage assembly, the plate-shaped filter screen is improved into a filter assembly with an overall conveyor belt structure. Rubber protrusions on the cylindrical bladders in the filter unblocking assembly are used to unclog the debris clogging the filter screen, thereby reducing the frequency of filter screen cleaning and improving the technical effect of municipal wastewater filtration efficiency. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of a municipal sewage treatment device according to the present invention;

[0040] Figure 2 This is a schematic diagram of the internal location of a municipal wastewater treatment device according to the present invention;

[0041] Figure 3 This is a schematic diagram showing the location and structure of the filter and unblocking component of a municipal sewage treatment device according to the present invention;

[0042] Figure 4 This is a schematic diagram of the external structure of a filter and unblocking component of a municipal sewage treatment equipment according to the present invention;

[0043] Figure 5 This is a schematic diagram showing the positional relationship between the water-blocking ring and the water-baffle plate in a municipal sewage treatment device according to the present invention;

[0044] Figure 6 This is a side view of the positional relationship between the filter and dredging components and the rotating component of a municipal sewage treatment device according to the present invention;

[0045] Figure 7 This is a schematic diagram of the movement process of the filter and dredging components and the rotating component of a municipal sewage treatment device according to the present invention;

[0046] Figure 8This is a schematic diagram showing the positional relationship between the rotating rod and the drive belt of a municipal sewage treatment device according to the present invention;

[0047] Figure 9 This is a partial structural schematic diagram of a storage component of a municipal wastewater treatment device according to the present invention;

[0048] Figure 10 This is a schematic diagram of the second filter screen of a municipal sewage treatment device according to the present invention, showing the upward state.

[0049] Figure label:

[0050] Base 1, Inlet 11, Water-avoiding groove 12, Outlet 13;

[0051] Filter assembly 2, rotating shaft 21, first filter screen 22, fixing assembly 23, first fixing seat 231, second fixing seat 232, fixing rod 233, filter unblocking assembly 24, water blocking ring 25, water baffle 251;

[0052] Rotating component 3, boom 31, lifting rope 32, rotating base 33, rotating rod 34, drive belt 35, rotating disk 36;

[0053] Storage component 4, cleaning component 41, storage box 42, inner liner 421, handle 422, support column 43, stairs 44, lifting component 45, drum 451, traction rope 452, second filter screen 453, magnetic block 454, support plate 455, first magnetic block 456, second magnetic block 457. Detailed Implementation

[0054] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0055] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0057] Please see Figure 1This is a schematic diagram of the overall structure of a municipal sewage treatment device according to the present invention;

[0058] This application discloses a municipal wastewater treatment device comprising a base, a filter assembly, a rotating assembly, and a storage assembly. The inclined filter assembly includes two rotating shafts, a first filter screen, a fixing assembly, and a filter unblocking assembly. The axis of the rotating shaft is parallel to the length of the water-retaining tank. The rotating shaft on the left, externally connected to a motor, is located inside the water-retaining tank, while the rotating shaft on the right is close to the right side of the base's internal space. The first filter screen is an annular belt densely covered with filter holes, tautly fitted onto the two rotating shafts, with its right side tightly against the scraping assembly. The fixing assembly fixes the filter assembly inclinedly to the right side of the base. The filter unblocking assembly is a combination of multiple cylindrical bladders evenly distributed between the two rotating shafts. The cylindrical bladders are parallel to the axes of the rotating shafts, and each cylindrical bladder has densely covered rubber protrusions on its shaft. When the filter assembly is running, the rubber protrusions extend into the filter holes of the first filter screen, thereby pushing out debris from the filter holes, achieving the technical effect of effectively filtering wastewater. Example 1

[0059] like Figure 1 As shown, a municipal wastewater treatment device according to this application includes a base 1, a filter assembly 2, and a storage assembly 4.

[0060] The base 1 is a box structure with an inlet 11 on the upper left side and an outlet 13 on the lower right side. A water-avoiding groove 12 for positioning the filter assembly 2 is provided on the inner wall of the left side.

[0061] The filter assembly 2 is an inclined conveyor belt structure, including two rotating shafts 21, a first filter screen 22, a fixing assembly 23, a filter unblocking assembly 24, and a water blocking ring 25.

[0062] Preferably, to further prevent impurities from seeping into the gaps in the rotating shaft 21 and to enhance the stability of the municipal wastewater treatment equipment of this application, such as... Figure 3 As shown, the axis of the rotating shaft 21 is parallel to the length direction of the water-avoiding groove 12. The right rotating shaft 21 is close to the right side of the internal space of the base 1, and the left rotating shaft 21, which is externally connected to the motor, is located inside the water-avoiding groove 12.

[0063] Preferably, the first filter screen 22 is an annular belt with numerous filter holes, which is taut and fitted onto the two rotating shafts 21, with the right side tightly attached to the scraping assembly 41.

[0064] Preferably, to prevent impurities from clogging the first filter screen 22 and affecting the wastewater filtration efficiency, such as... Figure 4As shown, the filter unblocking component 24 is a combination of multiple cylindrical bladders, evenly distributed between two rotating shafts 21. The cylindrical bladders are parallel to the axis of the rotating shafts 21. Each cylindrical bladder has rubber protrusions densely distributed on its body. When the first filter screen 22 rotates, the rubber protrusions will extend into the filter holes of the first filter screen 22 and push out the debris inside the filter holes.

[0065] like Figure 2 As shown, the fixing component 23 fixes the filter component 2 at an angle to the right side of the base 1, including a first fixing seat 231, a second fixing seat 232, and a fixing rod 233; the first fixing seat 231 rotates and fixes the left rotating shaft 21 in the water-avoiding groove 12 to prevent the rotating shaft 21 from directly contacting the sewage; the second fixing seat 232 stands vertically on the right side of the internal space of the base 1, and rotates and fixes the right rotating shaft 21 to the left side of the scraping component 41; the two ends of the fixing rod 233 are located at the connection between the two fixing seats and the two rotating shafts 21, and the rod body is fixed with multiple cylindrical bladders of the filter unblocking component 24 at intervals to facilitate the infiltration of filtered sewage.

[0066] Preferably, to further prevent impurities from falling from the edge of the first filter screen 22, such as... Figure 5 As shown, the water-blocking ring 25 is located on both sides of the first filter screen 22 and is composed of multiple water-blocking plates 251 spliced ​​together. The water-blocking plate 251 is a rectangular plate made of rubber, and its bottom surface is fixed to the edge of both sides of the first filter screen 22. Each water-blocking plate 251 is tightly attached to the other side.

[0067] When implementing the solution in this application embodiment:

[0068] 1. Wastewater flows into the first filter screen from the inlet, where it is separated from impurities.

[0069] 2. The pre-filtered wastewater seeps into the bottom of the internal space of the base and is discharged through the outlet;

[0070] 3. During the process of transporting impurities through the first filter screen, the rubber protrusions on the cylindrical bladder in the filter unblocking component will extend into the filter holes of the first filter screen and push out the impurities inside the filter holes.

[0071] 4. The filtered impurities and debris after the filter holes are cleared are transported to the storage tank through the first filter screen.

[0072] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages:

[0073] This invention solves the technical problem in existing technologies where impurities after preliminary purification of municipal sewage clog the filter screen, resulting in limited sewage filtration efficiency. It enables the equipment to effectively filter sewage during the preliminary purification process, thereby reducing the frequency of filter screen cleaning and improving the filtration efficiency of municipal sewage. Example 2

[0074] Considering that the municipal wastewater treatment equipment of this application treats wastewater from various fields such as construction, environmental protection, and catering, it is inevitable that sticky and adsorbent impurities will adhere to the filter screen, making them difficult to treat; in order to address the above problems and improve the compatibility of the municipal wastewater treatment equipment of this application, this application adds a rotating component 3 to the above embodiments; specifically:

[0075] like Figure 1 As shown, the rotating assembly 3 is located above the filter assembly 2 and includes a boom 3, four suspension ropes 32, a rotating base 33, a rotating rod 34, a drive belt 35, and a rotating disk 36. The rotating base 33 is located above the filter assembly 2 and has a reversible motor inside. The rotating rod is rotatably connected to the bottom surface. The width of the rotating base 33 is equal to the length of the rotating shaft 21, and the length is equal to the distance between the first bladder on the left and the first bladder on the right inside the filter unblocking assembly 24.

[0076] Preferred, such as Figure 6 and 7 As shown, there are multiple rotating rods 34 perpendicular to the first filter screen 22. Each rotating rod 34 has a drive belt 35 wrapped around its upper end. One of the rotating rods 34 is driven to rotate by a motor as a main shaft, and the other rotating rods 34 are driven to rotate by the drive belt 35, so that the rotating rods are linked together. The rotating disk 36 is a frustum-shaped disk that is narrow at the top and wide at the bottom. Its bottom is lightly pressed on the first filter screen 22, and its top is fixed on the rotating rod 34. When the rotating rod 34 rotates, the rotating disk 36 will remove the sticky debris adhering to the first filter screen 22 by rotating on its own.

[0077] Preferably, for ease of transporting miscellaneous items, such as Figure 8 As shown, the drive belt 35 is wrapped around the rotating rod and is S-shaped on each row of rotating rods, so that the adjacent rotating disks 36 rotate in opposite directions. The rotational forces in different directions generate the same thrust at the gap between the rotating disks 36.

[0078] Preferably, to prevent ribbon-like debris from getting tangled on the rotating rod, such as Figure 1 As shown, the boom 31 is a lifting device, which is fixed to the top of the internal space of the base 1, and hangs the rotating base 33 above the first filter screen 22; the four suspension ropes 32 are connected to the rotating base 33 from the boom 31 downwards, making the rotating base 33 parallel to the filter assembly 2. When the boom 31 retracts the suspension ropes 32, the rotating base 33 rises 5 cm and then stops. The reverse movement of the rotating rod 34, combined with the height of the rotating base 33 after it rises, throws the debris wrapped on the rod into the first filter screen 22. Example 3

[0079] Considering that during the initial purification process of the municipal wastewater treatment equipment of this application, after the storage tank rises, debris on the first filter screen will contaminate the filtered water below, stopping the equipment at this time will increase the filtration time and reduce the filtration efficiency of the wastewater purification system; to address the above problems and to further improve the continuity of the municipal wastewater treatment equipment of this application, this application adds a storage component 4 to the above embodiment; specifically:

[0080] like Figure 1 and 9 As shown, the storage component 4 is located on the right side of the internal space of the base 1 and is used to process filtered debris. It includes a scraping component 41, a storage box 42, a support column 43, and a lifting component 45. The scraping component 41 is a hollow box with openings on both the left and right sides. The left end of the bottom surface is in close contact with the first filter screen 22, and the storage box 42 is located on the right side. When the rotating shaft rotates, the left end of the bottom surface of the scraping component 41 will scrape off the debris on the first filter screen 22, and then send the debris into the storage box 42 through the internal inclined surface. The storage box 42 is a hollow box containing an inner liner 421. Multiple filter holes are penetrating both the bottom wall of the storage box 42 and the bottom wall of the inner liner 421.

[0081] The lifting assembly 45 includes a drum 451, a traction rope 452, a second filter screen 453, a magnetic block 454, a support plate 455, a first magnetic block 456, and a second magnetic block 457; the second filter screen 453 is located between the scraping assembly 41 and the storage box 42, with the magnetic block 454 connected above and the support plate 455 horizontally fixed below, forming an L-shaped structure with the magnetic block 454 and the support plate 455.

[0082] Preferably, in order to create a sealed space for temporary storage of miscellaneous items, such as Figure 10 As shown, the magnetic block 454 and the second filter screen 453 are of the same length and thickness. The quadrilateral formed by the left side of the magnetic block 454 and the left side of the second filter screen 453 is equal to the right opening of the scraping assembly 41. The first magnetic block 456 is fixed on the support plate 455, and the storage box 42 is attached above it. When the storage box 42 rises, the first magnetic block 456 will drive the support plate 455 to rise. The second magnetic block 457 is fixed on the top right side of the internal space of the scraping assembly 41. When the storage box 42 rises, the rising magnetic block 454 will be attached to the second magnetic block 457, so that the quadrilateral formed by the magnetic block 454 and the second filter screen 453 and the scraping assembly 41 constitute a sealed space for temporary storage of debris.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A municipal sewage treatment plant comprising a base (1) of a box structure, a filtering assembly (2) and a storage assembly (4); characterized by the fact that, The base (1) has a water-avoiding groove (12) on the inner left side wall for positioning the filter assembly (2); The filter assembly (2) is an inclined conveyor belt structure, including two rotating shafts (21), a first filter screen (22), a fixing assembly (23), and a filter unblocking assembly (24); The axis of the rotating shaft (21) is parallel to the length direction of the water-avoiding trough (12). The rotating shaft (21) on the left side, which is externally connected to the motor, is located inside the water-avoiding trough (12), and the rotating shaft (21) on the right side is close to the right side of the internal space of the base (1). The first filter screen (22) is an annular belt with densely packed filter holes. It is taut and fitted on two rotating shafts (21), with the right side tightly attached to the scraping assembly (41). The fixing component (23) fixes the filter component (2) at an angle to the right side of the base (1); The filter unblocking component (24) is a combination of multiple cylindrical bladders, evenly distributed between two rotating shafts (21). The cylindrical bladders are parallel to the axis of the rotating shafts (21). Each cylindrical bladder has rubber protrusions densely distributed on its body. When the first filter screen (22) rotates, the rubber protrusions will extend into the filter holes of the first filter screen (22) and push out the debris in the filter holes. The storage component (4) is used to store debris from the scraping component (41); It also includes a rotating assembly (3), which is located above the filter assembly (2) and includes a boom (31), four suspension ropes (32), a rotating base (33), a rotating rod (34), a drive belt (35), and a rotating disk (36); The rotating base (33) is located above the filter assembly (2), and is equipped with a motor that can rotate in both directions. The bottom surface is rotatably connected to the rotating rod. The width of the rotating base (33) is equal to the length of the rotating shaft (21), and the length is equal to the distance between the first bladder on the left and the first bladder on the right inside the filter unblocking assembly (24). The rotating rods (34) are perpendicular to the first filter screen (22), and there are multiple of them. The upper end of each rotating rod (34) is wrapped with a drive belt (35). One of the rotating rods (34) is driven to rotate by a motor as the main shaft, and the other rotating rods (34) are driven to rotate by the drive belt (35), so that the rotating rods are linked together, and all the rotating rods (34) can be controlled synchronously. The rotating disc (36) is a frustum-shaped disc that is narrow at the top and wide at the bottom. The design of the side slope facilitates the passage of solid debris. Its bottom is lightly pressed on the first filter screen (22), and its top is fixed on the rotating rod (34). When the rotating rod (34) rotates, the rotating disc (36) will clear the sticky debris stuck to the first filter screen (22) by rotating itself. The drive belt (35) is wrapped around the rotating rod and is S-shaped on each row of rotating rods, so that the adjacent rotating disks (36) rotate in opposite directions. The rotational forces in different directions generate a thrust in the same direction at the gap between the rotating disks (36) to facilitate the transport of debris. The boom (31) is a lifting device, which is fixed to the top of the internal space of the base (1) and hangs the rotating base (33) above the first filter screen (22); The four suspension ropes (32) are connected downward from the boom (31) to the rotating base (33), making the rotating base (33) parallel to the filter assembly (2). When the boom (31) retracts the suspension ropes (32), the rotating base (33) rises 5 cm and then stops. The reverse movement of the rotating rod (34) combined with the height of the rotating base (33) after it rises throws the debris wrapped on the rod into the first filter screen (22).

2. The municipal wastewater treatment equipment as described in claim 1, characterized in that, The fixing component (23) includes a first fixing seat (231), a second fixing seat (232), and a fixing rod (233); The first fixing seat (231) rotates and fixes the left rotating shaft (21) in the water-avoiding tank (12) to prevent the rotating shaft (21) from directly contacting the sewage; The second fixing seat (232) is vertically erected on the right side of the internal space of the base (1), and the right rotating shaft (21) is rotated and fixed on the left side of the scraping assembly (41); The two ends of the fixed rod (233) are located at the connection between the two fixed seats and the two rotating shafts (21). The rod body is fixed with multiple cylindrical bladders of the filter and dredging assembly (24) at intervals, which facilitates the infiltration of filtered sewage.

3. The municipal wastewater treatment equipment as described in claim 1, characterized in that, The filter assembly (2) also includes two water-blocking rings (25); The water-blocking ring (25) is located on both sides of the first filter screen (22) and is composed of multiple water-blocking plates (251). The water-blocking plate (251) is a rectangular plate made of rubber. Its bottom surface is fixed to the two sides of the first filter screen (22). Each water-blocking plate (251) is tightly attached to each other to prevent impurities from falling from the edge of the first filter screen (22).

4. A municipal wastewater treatment device as described in claim 1, characterized in that, The storage component (4) is located on the right side of the interior space of the base (1) and is used for filtering debris processing. It includes a scraping component (41), a storage box (42), a support column (43), and a lifting component (45). The scraping assembly (41) is a hollow box with openings on both the left and right sides. The bottom left end is in close contact with the first filter screen (22), and a storage box (42) is provided on the right side. When the rotating shaft rotates, the scraping assembly (41) scrapes off the debris on the first filter screen (22) from the bottom left end, and then sends the debris into the storage box (42) through the internal inclined surface. The storage box (42) is a hollow box containing an inner liner (421). Both the bottom wall of the storage box (42) and the bottom wall of the inner liner (421) have multiple filter holes to further dry the moisture on the debris.

5. A municipal wastewater treatment device as described in claim 4, characterized in that, The lifting assembly (45) includes a drum (451), a traction rope (452), a second filter screen (453), a magnetic block (454), a support plate (455), a first magnetic block (456), and a second magnetic block (457); The drum (451) is located directly above the storage box (42), and the storage box (42) is raised and lowered by the traction rope (452); the second filter screen (453) is located between the scraping assembly (41) and the storage box (42), with a magnetic block (454) connected above and a support plate (455) fixed horizontally below, forming an L-shaped structure with the magnetic block (454) and the support plate (455). The magnetic block (454) and the second filter screen (453) are of the same length and thickness. The quadrilateral formed by the left side of the magnetic block (454) and the left side of the second filter screen (453) is equal to the right opening of the scraping component (41). The first magnetic block (456) is fixed on the support plate (455), and the storage box (42) is attached above it. When the storage box (42) rises, the first magnetic block (456) will drive the support plate (455) to rise. The second magnetic block (457) is fixed on the top right side of the internal space of the scraping assembly (41). When the storage box (42) rises, the rising magnetic block (454) will be attracted to the second magnetic block (457), so that the quadrilateral formed by the magnetic block (454) and the second filter screen (453) and the scraping assembly (41) constitute a sealed space for temporary storage of filtered debris.

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