Fabricated sewage purification treatment equipment

Abstract

The invention belongs to the related technical field of sewage treatment, and particularly relates to assembly type sewage purification treatment equipment which comprises a purification tank, a water inlet pipe is arranged on one side of the upper end of the purification tank, sewage is guided in through the water inlet pipe, and a sedimentation tank is arranged in the middle of the interior of the purification tank. A settling pond is arranged in the purifying pond, a skimming pond located in the purifying pond is arranged on the side, away from the water inlet pipe, of the settling pond, a liquid collecting pond located in the purifying pond is arranged on the side, away from the settling pond, of the skimming pond, a primary filtering assembly is arranged between the purifying pond and the water inlet pipe, and guided sewage is subjected to primary filtering treatment through the primary filtering assembly; a strong filtering assembly is arranged between the skimming tank and the liquid collecting tank, the primary filtering assembly is arranged between the purifying tank and the water inlet pipe for primary filtering, then the settling tank is used for settling treatment, and finally the strong filtering assembly is arranged between the skimming tank and the liquid collecting tank for one-way efficient forced filtering. Therefore, multiple purification treatment on the sewage is realized, and the purification efficiency and the purification effect are improved.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically relating to a prefabricated wastewater purification and treatment device. Background Technology

[0002] Currently, traditional wastewater purification equipment mostly uses a single filtration or sedimentation method, which has problems such as low treatment efficiency, easy clogging, and frequent maintenance, making it difficult to meet the demand for efficient and energy-saving wastewater treatment.

[0003] To address the aforementioned problems, this patent proposes a wastewater purification and treatment device that employs multiple filtration processes and is capable of self-cleaning, thereby resolving the aforementioned technical issues. Summary of the Invention

[0004] The purpose of this invention is to provide a prefabricated sewage purification and treatment device to solve the problems of low treatment efficiency and easy clogging of traditional sewage purification devices mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated sewage purification treatment device, comprising a purification tank, an inlet pipe provided on one side of the upper end of the purification tank for introducing sewage, a sedimentation tank provided in the middle of the purification tank, a skimming tank provided on the side of the sedimentation tank away from the inlet pipe, and a collection tank provided on the side of the skimming tank away from the sedimentation tank, a primary filter assembly provided between the purification tank and the inlet pipe for preliminary filtration of the introduced sewage, a high-efficiency filter assembly provided between the skimming tank and the collection tank for efficient forced filtration of the sewage in the skimming tank, and the forced filtered sewage introduced into the collection tank, and a cleaning assembly provided inside the high-efficiency filter assembly for cleaning and collecting internal dirt.

[0006] Preferably, the primary filter assembly includes a primary filter cartridge, one end of the inlet pipe is provided with a flange connected to the sewage pipe, and the other end of the inlet pipe is connected to the primary filter cartridge and connected in the tangential direction of the primary filter cartridge. A separation rotary plate is rotatably connected inside the primary filter cartridge.

[0007] Preferably, the separating rotary plate consists of a hollow rotating shaft in the middle and multiple baffles on the outside. The primary filter cylinder has a separating window at the end away from the water inlet pipe, and a separating filter screen located outside the separating rotary plate is connected inside the separating window on the side closer to the purification tank. A collection box located outside the purification tank is provided on the lower side of the separating window away from the separating filter screen.

[0008] Preferably, the high-pressure filtration assembly includes a mounting plate, the upper end of the skimming tank is bolted to the mounting plate, and a suction pipe inserted into the skimming tank runs vertically through the mounting plate. The upper end of the suction pipe is connected to a collection bucket, and the lower outer side of the collection bucket is connected to a liquid guide pipe located inside the upper end of the liquid collection tank. A distribution cylinder connected to the suction pipe is connected at the central axis of the collection bucket.

[0009] Preferably, the upper end of the distribution cylinder is sleeved with an upper sealing plate that is bolted to the upper end of the collection tank, and multiple strong filter tubes are radially connected to the outside of the distribution cylinder. The ends of the multiple strong filter tubes away from the distribution cylinder are connected to filter element frames by threaded sleeves, and spherical filter elements are provided inside the multiple filter element frames. A drive motor is provided at the upper end of the distribution cylinder, and the lower end of the drive motor is connected to a drive crankshaft located inside the distribution cylinder through an output shaft. The lower end of the drive crankshaft is connected to a spiral rod located inside the suction tube.

[0010] Preferably, the drive crankshaft consists of a crank and a connecting rod journal, and multiple first transmission connecting rods inserted into the inside of the strong filter tube are rotatably connected to the outside of the journal. Each of the multiple strong filter tubes is slidably connected to a pressure piston, and a rubber sealing ring is provided between the pressure piston and the pressure piston. Furthermore, a second transmission connecting rod is provided inside the multiple pressure pistons near the distribution cylinder, penetrating inside the first transmission connecting rod.

[0011] Preferably, the strong filter tube and the pressurizing piston are provided with multiple connecting holes at the ends away from the distribution cylinder, and each connecting hole is provided with a sealing plate at the end away from the distribution cylinder. Each sealing plate is connected to a telescopic rod that passes through the connecting hole at the end near the distribution cylinder, and a spring retaining ring is connected to the telescopic rod. Each spring retaining ring is provided with a sealing spring sleeved on the outside of the telescopic rod between it and the connecting hole.

[0012] Preferably, the cleaning assembly includes a drive rod, the end of the pressurizing piston near the spherical filter element is connected to the drive rod, and the drive rod extends to the outside of the strong filter tube and penetrates the inside of the spherical filter element. The end of the drive rod away from the pressurizing piston is radially connected to two symmetrical drive rollers by screws. Both ends of the filter element frame near and away from the strong filter tube are provided with connecting pipe heads.

[0013] Preferably, each of the two connecting pipe heads is provided with a limiting frame, and a linkage pipe shaft sleeved on the outside of the drive plug is rotatably connected between the two limiting frames. Two rotationally symmetrical spiral grooves are opened on the outer wall of the linkage pipe shaft, and two drive rollers are slidably connected inside the two spiral grooves respectively.

[0014] Preferably, the linkage tube shaft is externally connected to multiple connecting rods, and multiple cleaning scrapers that adhere to the inner wall of the spherical filter element are connected through the multiple connecting rods. The multiple cleaning scrapers are wider on the side closer to the strong filter tube than on the side farther away from the strong filter tube. The filter element frame is connected to a sludge collection bottle through a threaded sleeve at the end away from the strong filter tube.

[0015] Compared with the prior art, the present invention provides a prefabricated sewage purification and treatment equipment, which has the following beneficial effects: 1. This invention achieves multiple purification treatments for wastewater by installing a primary filter component between the purification tank and the inlet pipe for preliminary filtration, followed by sedimentation treatment in the sedimentation tank, and finally, unidirectional high-efficiency forced filtration by installing a high-efficiency filter component between the skimming tank and the collection tank, thereby improving purification efficiency and effect.

[0016] 2. The primary filtration assembly of this invention drives the separation rotor to rotate through tangential water inlet. Wastewater enters the primary filtration cylinder tangentially through the inlet pipe, impacting the baffles of the separation rotor to rotate it, which in turn moves the wastewater toward the separation window. Larger impurities are intercepted by the separation filter screen inside the separation window and fall into the collection box under the push of the baffles. Its structure is simple and requires no additional power source.

[0017] 3. The high-pressure filtration assembly of the present invention drives the crankshaft, the first transmission connecting rod and the second transmission connecting rod to drive the pressure piston to slide inside and outside the high-pressure filtration tube. The pressure piston, together with the sealing plate, blocks and opens the connecting hole, allowing sewage to flow unidirectionally from the distribution cylinder to the spherical filter element under pressure, realizing unidirectional flow and pressure filtration of sewage. The sewage is treated simultaneously through multiple high-pressure filtration tubes, improving filtration efficiency and effect.

[0018] 4. The cleaning component of this invention utilizes the extension and retraction of a pressurized piston to drive the drive rod to slide inside and outside the linkage tube shaft. By driving the drive roller to slide and push the linkage tube shaft in both directions inside the spiral groove, the cleaning scraper repeatedly scrapes the inner wall of the spherical filter element, guiding the dirt accumulated on the inner wall of the spherical filter element into the collection bottle for collection. The filter element self-cleaning is completed simultaneously during the filtration process, preventing clogging, extending the filter element life, and reducing the need for manual maintenance.

[0019] 5. This invention uses a three-stage process of primary filtration, sedimentation, and high-intensity filtration, and can perform self-cleaning. The high-intensity filtration and self-cleaning only require a single drive motor to achieve efficient and low-energy wastewater purification. At the same time, it can be easily maintained by removing the top cover plate. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the wastewater purification and treatment equipment of the present invention.

[0021] Figure 2 This is a schematic diagram of the connection structure of the purification tank of the present invention.

[0022] Figure 3 This is a schematic diagram of the primary filter component structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the high-pressure filtration component structure of the present invention.

[0024] Figure 5 This is a schematic diagram of the connection structure of the collection bucket according to the present invention.

[0025] Figure 6 This is a schematic diagram of the drive crankshaft connection structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the screw rod connection structure of the present invention.

[0027] Figure 8 This is a schematic diagram of the cleaning component structure of the present invention.

[0028] Figure 9 This is a schematic diagram of the pressurized piston connection structure of the present invention.

[0029] Figure 10 For the present invention Figure 9 Enlarged diagram of point A in the middle.

[0030] Figure 11 This is a schematic diagram of the linkage tube shaft connection structure of the present invention.

[0031] Figure 12 This is a schematic diagram of the drive plug connection structure of the present invention.

[0032] In the diagram: 1. Purification tank; 2. Inlet pipe; 3. Sedimentation tank; 4. Skimming tank; 5. Collection tank; 6. Primary filter cartridge; 7. Separating rotary plate; 8. Separating window; 9. Separating filter screen; 10. Mounting plate; 11. Suction pipe; 12. Collection bucket; 13. Liquid guide pipe; 14. Distribution cylinder; 15. Top sealing plate; 16. High-pressure filter tube; 17. Filter cartridge holder; 18. Spherical filter cartridge; 19. Drive motor; 20. Drive crankshaft; 21. Helical rod; 22. First transmission connecting rod; 23. Pressurizing piston; 24. Second transmission connecting rod; 25. Connecting hole; 26. Sealing plate; 27. Telescopic rod; 28. Spring retaining ring; 29. ​​Sealing spring; 30. Drive insertion rod; 31. Drive roller; 32. Limiting frame; 33. Linkage pipe shaft; 34. Spiral groove; 35. Connecting rod; 36. Cleaning scraper; 37. Sludge collection bottle. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] This invention provides, for example Figures 1-12 The illustrated prefabricated wastewater purification equipment includes a purification tank 1, an inlet pipe 2 at one end of the purification tank 1 for introducing wastewater, a sedimentation tank 3 in the middle of the purification tank 1, a skimming tank 4 located inside the purification tank 1 on the side of the sedimentation tank 3 away from the inlet pipe 2, and a collection tank 5 located inside the purification tank 1 on the side of the skimming tank 4 away from the sedimentation tank 3. A primary filter assembly is installed between the purification tank 1 and the inlet pipe 2 to perform preliminary filtration on the introduced wastewater. A high-efficiency filter assembly is installed between the skimming tank 4 and the collection tank 5, allowing the wastewater inside the skimming tank 4 to undergo efficient forced filtration, and the filtered wastewater is then introduced into the collection tank 5. The unit is equipped with a cleaning component to clean and collect internal dirt. During the wastewater purification process, the wastewater is introduced into the pre-filtration component through the inlet pipe 2 for preliminary filtration to remove larger impurities. The pre-filtered wastewater is then introduced into the purification tank 1. The wastewater entering the purification tank 1 first undergoes sedimentation treatment in the sedimentation tank 3, and the cleaner wastewater on the upper layer of the sedimentation tank 3 flows into the skimming tank 4 for collection. Finally, the skimming tank 4 uses a high-efficiency forced filtration component to remove tiny impurities from the wastewater. The filtered wastewater is then introduced into the collection tank 5 for collection and discharged through a drain pipe connected to the end of the collection tank 5 away from the skimming tank 4.

[0035] The wastewater undergoes preliminary filtration through a primary filtration unit, followed by sedimentation in purification tank 1, and finally high-efficiency forced filtration through a high-pressure filtration unit. This multi-stage purification process improves both the effectiveness and efficiency of wastewater treatment.

[0036] In addition, the sedimentation tank 3 is equipped with multiple flow-reducing plates with gradients at the top, and the bottom of the sedimentation tank 3 is connected to a sewage pipe. This allows the sedimentation tank 3 to reduce the flow velocity of the lower layer of sewage through the multiple flow-reducing plates, so that the sewage can be efficiently settled inside the sedimentation tank 3.

[0037] like Figures 1-3As shown, the primary filtration assembly includes a primary filter cartridge 6. One end of the inlet pipe 2 is equipped with a flange connected to the sewage pipe, and the other end of the inlet pipe 2 is connected to the primary filter cartridge 6, which is tangentially connected to the primary filter cartridge 6. A separation rotary plate 7 is rotatably connected inside the primary filter cartridge 6. The separation rotary plate 7 consists of a hollow rotating shaft in the middle and multiple baffles on the outside. A separation window 8 is opened at the end of the primary filter cartridge 6 away from the inlet pipe 2. A separation filter screen 9 located outside the separation rotary plate 7 is connected inside the separation window 8 on the side closer to the purification tank 1. A collection box located outside the purification tank 1 is set on the lower side of the end of the separation window 8 away from the separation filter screen 9. During the primary filtration of sewage, the inlet pipe 2 is connected to the sewage pipe through the flange and bolts, and the sewage is introduced into the primary filter cartridge 6 along the front direction. The sewage can impact the separation rotary plate 7 inside the primary filter cartridge 6 and impact the baffles of the separation rotary plate 7, so that the separation rotary plate 7 can rotate inside the primary filter cartridge 6 due to the impact force on the baffles, and drive the sewage to rotate together inside the primary filter cartridge 6.

[0038] Furthermore, when the separating rotary plate 7 rotates the sewage to the position of the separating filter screen 9, the sewage will leak from the mesh of the separating filter screen 9 into the purification tank 1. At the same time, the separating filter screen 9 blocks the larger impurities inside the sewage, and under the action of the baffle of the separating rotary plate 7, the sewage falls down from the side of the separating window 8 away from the separating filter screen 9 into the collection box, thereby performing preliminary filtration treatment on the sewage and removing the larger impurities inside the sewage.

[0039] like Figures 4-7As shown, the high-pressure filtration assembly includes a mounting plate 10. The upper end of the skimming tank 4 is bolted to the mounting plate 10, and a suction pipe 11 is inserted vertically into the interior of the mounting plate 10 and inserted into the interior of the skimming tank 4. The upper end of the suction pipe 11 is connected to a collection tank 12, and the lower outer side of the collection tank 12 is connected to a liquid guide pipe 13 located inside the upper end of the liquid collection tank 5. A distribution cylinder 14 connected to the suction pipe 11 is connected to the central axis of the collection tank 12. An upper sealing plate 15 is bolted to the upper outer side of the distribution cylinder 14 and is connected radially to the outside of the distribution cylinder 14. The ends of the multiple high-pressure filtration pipes 16 away from the distribution cylinder 14 are all threaded to a filter element frame 17, and a rubber sealing ring is provided between the filter element frame 17 and the filter element frame 17. A spherical filter element 1 is provided inside each of the multiple filter element frames 17. 8. A drive motor 19 is installed at the upper end of the distribution cylinder 14, and the lower end of the drive motor 19 is connected to a drive crankshaft 20 located inside the distribution cylinder 14 via an output shaft. The lower end of the drive crankshaft 20 is connected to a screw rod 21 located inside the suction pipe 11. During the process of introducing the sewage inside the skimming tank 4 into the strong filter assembly, the drive motor 19 is electrically connected to an external power source via a wiring harness. When the drive motor 19 is started, the drive motor 19 drives the drive crankshaft 20 to rotate inside the distribution cylinder 14 through its output, and drives the screw rod 21 to rotate inside the suction pipe 11 through the drive crankshaft 20. Since the screw rod 21 is composed of a spiral plate and a rotating shaft, and can form a spiral pump with the suction pipe 11, the sewage inside the skimming tank 4 can be drawn into the strong filter assembly by the spiral pump and introduced into the distribution cylinder 14.

[0040] Furthermore, the wastewater entering the distribution cylinder 14 is introduced into multiple high-pressure filter pipes 16 for pressurization, and then pressurized through the high-pressure filter pipes 16 into the spherical filter element 18 for forced filtration. Finally, the wastewater after forced filtration is collected into the collection tank 12 and introduced into the collection pool 5 through the liquid guide pipe 13 connected to the lower outer side of the collection tank 12. The upper end of the collection tank 12 is sealed and disassembled for maintenance through the upper sealing plate 15.

[0041] like Figures 6-10As shown, the drive crankshaft 20 consists of a crank and a connecting rod journal, and multiple first transmission connecting rods 22 inserted into the strong filter tubes 16 are rotatably connected to the outside of the journal. Each of the strong filter tubes 16 has a slidably connected pressurizing piston 23, and a rubber sealing ring is provided between the pressurizing piston 23 and the pressurizing piston 23. A second transmission connecting rod 24, penetrating the first transmission connecting rod 22, is provided inside the end of each pressurizing piston 23 near the distribution cylinder 14. Multiple connecting holes 25 are provided inside the strong filter tubes 16 and the end of each pressurizing piston 23 away from the distribution cylinder 14, and a sealing plate 26 is provided at the end of each connecting hole 25 away from the distribution cylinder 14. Each sealing plate 26 is connected to a telescopic rod 27 penetrating the connecting hole 25 at the end near the distribution cylinder 14, and a spring retaining ring 28 is connected through the telescopic rod 27. Multiple spring retaining rings 28... A sealing spring 29, sleeved on the outside of the telescopic rod 27, is provided between the 8 and the connecting hole 25. During the process of pressurizing and filtering sewage, the drive motor 19 drives the drive crankshaft 20 to rotate inside the distribution cylinder 14, and drives multiple first transmission connecting rods 22 to extend and retract inside multiple strong filter tubes 16 through the connecting rod journal of the drive crankshaft 20. Since the first transmission connecting rod 22 is connected between the drive crankshaft 20 and the second transmission connecting rod 24, and is connected to the pressurizing piston 23 through the second transmission connecting rod 24, the drive crankshaft 20 can drive multiple pressurizing pistons 23 to slide inside and outside the multiple strong filter tubes 16 through the first transmission connecting rod 22 and the second transmission connecting rod 24, and the sewage introduced into the distribution cylinder 14 is sucked and pressurized by the sliding of the pressurizing pistons 23 inside the strong filter tubes 16.

[0042] Furthermore, when the pressurizing piston 23 slides inward inside the strong filter tube 16, the cavity of the strong filter tube 16 located at the outer end of the pressurizing piston 23 increases and generates negative pressure. This causes the multiple sealing plates 26 at the outer end of the strong filter tube 16 to adhere tightly to the outside of the strong filter tube 16 under the adsorption of the negative pressure and the elastic force of the sealing spring 29. This seals the multiple connecting holes 25 opened at the outer end of the strong filter tube 16, preventing the sewage inside the spherical filter element 18 from being sucked back into the interior.

[0043] At the same time, under the suction of negative pressure, the multiple sealing plates 26 at the outer end of the pressurizing piston 23 overcome the elastic force of the sealing spring 29 and move outward, exposing the multiple connecting holes 25 opened at the outer end of the pressurizing piston 23. This allows the cavities at the inner and outer ends of the strong filter tube 16 located in the pressurizing piston 23 to be connected through the multiple connecting holes 25, thereby sucking the sewage in the strong filter tube 16 located at the inner end of the pressurizing piston 23, which is connected to the distribution cylinder 14, into the cavity located at the outer end of the pressurizing piston 23.

[0044] Furthermore, when the pressurizing piston 23 slides outward inside the strong filter tube 16, the cavity of the strong filter tube 16 at the outer end of the pressurizing piston 23 decreases, and the sewage inside is pressurized. This causes the multiple sealing plates 26 at the outer end of the strong filter tube 16 to overcome the elastic force of the sealing spring 29 under the action of the high-pressure sewage, and expose the multiple connecting holes 25 opened at the outer end of the strong filter tube 16. This allows the cavity of the strong filter tube 16 at the outer end of the pressurizing piston 23 to communicate with the spherical filter element 18 through the multiple connecting holes 25. This forces the sewage inside the cavity of the strong filter tube 16 at the outer end of the pressurizing piston 23 into the spherical filter element 18 under high pressure, and filters it through the spherical filter element 18. The filtered sewage flows into the collection bucket 12 outside the spherical filter element 18 for collection, and finally is introduced into the collection tank 5 through the liquid guide pipe 13.

[0045] Meanwhile, multiple sealing plates 26 at the outer end of the pressurizing piston 23 are tightly attached to the outside of the pressurizing piston 23 under the pressure of the high-pressure sewage, and block the multiple connecting holes 25 opened at the outer end of the pressurizing piston 23 to prevent the sewage in the cavity at the outer end of the strong filter tube 16 located in the pressurizing piston 23 from flowing back into the distribution cylinder 14.

[0046] Thus, wastewater can flow unidirectionally from the distribution cylinder 14 to the spherical filter element 18 inside the strong filter tube 16 by the sliding of the pressurizing piston 23 in the inside and outside and the blocking and opening of the connecting hole 25 by the blocking plate 26. It can also pressurize the unidirectional flow of wastewater, allowing the wastewater to undergo rapid forced filtration through the spherical filter element 18. Furthermore, forced filtration can be carried out simultaneously through the cooperation of multiple strong filter tubes 16 and spherical filter elements 18, thereby improving the efficiency of forced filtration of wastewater.

[0047] like Figures 8-12As shown, the cleaning assembly includes a drive rod 30. A pressure piston 23 is connected to the drive rod 30 at one end near the spherical filter element 18, and the drive rod 30 extends to the outside of the strong filter tube 16 and penetrates the inside of the spherical filter element 18. Two symmetrical drive rollers 31 are radially connected to the end of the drive rod 30 away from the pressure piston 23 via screws. The filter element holder 17 has connecting pipe heads at both ends near and away from the strong filter tube 16. Each of the two connecting pipe heads has a limiting bracket 32 ​​inside, and the two limiting brackets 32 are rotatably connected to a sleeve fitted onto the drive rod 30. The external linkage shaft 33 has two rotationally symmetrically arranged spiral grooves 34 on its outer wall, and two drive rollers 31 are slidably connected inside the two spiral grooves 34 respectively. Multiple connecting rods 35 are connected to the outside of the linkage shaft 33, and multiple cleaning scrapers 36 that adhere to the inner wall of the spherical filter element 18 are connected through these connecting rods 35. The cleaning scrapers 36 are wider on the side closer to the strong filter tube 16 than on the side farther from the strong filter tube 16. A sludge collection bottle 37 is connected to the end of the filter element holder 17 away from the strong filter tube 16 via a threaded sleeve. A rubber sealing ring is provided between bottles 37. During the internal cleaning of the high-pressure filter assembly, the pressure piston 23 drives the drive rod 30 to extend and retract between the high-pressure filter tube 16 and the spherical filter element 18 by extending and retracting inside the high-pressure filter tube 16. A rubber sealing ring is provided between the drive rod 30 and the through-hole at the outer end of the high-pressure filter tube 16. When the drive rod 30 extends and retracts between the high-pressure filter tube 16 and the spherical filter element 18, since the drive rod 30 is inserted into the linkage shaft 33 and slides inward and outward inside the linkage shaft 33 by extending and retracting, the linkage... The moving tube shaft 33 is rotatably connected to the inside of the spherical filter element 18 through two limiting brackets 32. At the same time, the driving rod 30 drives the two driving rollers 31 to slide inside the two spiral grooves 34. Therefore, the driving rollers 31 can push the moving tube shaft 33 back and forth by sliding inside and outside the spiral grooves 34, and the moving tube shaft 33 is rotated by pushing back and forth. This allows the moving tube shaft 33 to drive multiple cleaning scrapers 36 to repeatedly rotate forward and reverse inside the spherical filter element 18 through multiple connecting rods 35, and repeatedly scrape the inner wall of the spherical filter element 18.

[0048] At this time, since the cleaning scraper 36 is wider on the side closer to the strong filter tube 16 than on the side farther away from the strong filter tube 16, the cleaning scraper 36 can scrape the dirt accumulated on the inner wall of the spherical filter element 18 to the side farther away from the strong filter tube 16, whether it moves forward or backward. This allows the dirt to be scraped into the collection bottle 37 connected to the side farther away from the strong filter tube 16 for collection. This not only automatically cleans and collects the dirt filtered by the spherical filter element 18, but also prevents the filtered dirt from clogging the spherical filter element 18, ensuring filtration efficiency and filtration effect.

[0049] In addition, the upper sealing plate 15 can be installed and removed from the upper end of the collection tank 12 by bolts, and a rubber sealing ring is provided between the collection tank 12 and the distribution cylinder 14, so that the upper end of the collection tank 12 can be opened through the upper sealing plate 15 for internal maintenance, and the filter element frame 17 and the spherical filter element 18 can be installed and removed through the threaded sleeve. At the same time, the sludge collection bottle 37 can be installed and removed through the threaded sleeve, making it more convenient to maintain and replace the internal parts of the high-pressure filter assembly.

[0050] Thus, throughout the process, the primary filter component can perform preliminary filtration of wastewater without the need for an additional power source. Then, the wastewater is settled in the sedimentation tank 3 inside the purification tank 1. Finally, it undergoes unidirectional high-efficiency forced filtration through the high-pressure filter component. The forced filtration component and the built-in cleaning component can work together and are driven by only one drive motor 19.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated sewage purification treatment device, comprising a purification tank (1), wherein an inlet pipe (2) is provided on one side of the upper end of the purification tank (1) and sewage is introduced through the inlet pipe (2), a sedimentation tank (3) is provided in the middle of the purification tank (1), and a skimming tank (4) located inside the purification tank (1) is provided on the side of the sedimentation tank (3) away from the inlet pipe (2), and a collection tank (5) located inside the purification tank (1) is provided on the side of the skimming tank (4) away from the sedimentation tank (3), characterized in that: A primary filter assembly is provided between the purification tank (1) and the inlet pipe (2), and the introduced sewage is preliminarily filtered through the primary filter assembly; A high-efficiency filter assembly is provided between the skimming tank (4) and the collection tank (5), and the sewage inside the skimming tank (4) can be subjected to efficient forced filtration through the high-efficiency filter assembly, and the filtered sewage is introduced into the collection tank (5). The high-pressure filter assembly is equipped with a cleaning component, which cleans and collects internal dirt.

2. The prefabricated wastewater purification and treatment equipment as described in claim 1, characterized in that, The primary filter assembly includes a primary filter cartridge (6), one end of the water inlet pipe (2) is provided with a flange connected to the sewage pipe, and the other end of the water inlet pipe (2) is connected to the primary filter cartridge (6) and connected in the tangential direction of the primary filter cartridge (6). A separation rotary plate (7) is rotatably connected inside the primary filter cartridge (6).

3. The prefabricated sewage purification and treatment equipment as described in claim 2, characterized in that, The separation swivel plate (7) consists of a hollow rotating shaft in the middle and multiple baffles on the outside. The primary filter cylinder (6) has a separation window (8) at one end away from the water inlet pipe (2). The separation window (8) is connected to a separation filter screen (9) located outside the separation swivel plate (7) on the side closer to the purification tank (1). A collection box located outside the purification tank (1) is provided on the lower side of the separation window (8) away from the separation filter screen (9).

4. The prefabricated sewage purification and treatment equipment as described in claim 1, characterized in that, The high-pressure filter assembly includes a mounting plate (10). The upper end of the skimming tank (4) is connected to the mounting plate (10) by bolts. The mounting plate (10) has a suction pipe (11) inserted into the skimming tank (4) through it from top to bottom. The upper end of the suction pipe (11) is connected to a collection bucket (12). The lower outer side of the collection bucket (12) is connected to a liquid guide pipe (13) located inside the upper end of the liquid collection tank (5). The central axis of the collection bucket (12) is connected to a distribution cylinder (14) that communicates with the suction pipe (11).

5. The prefabricated wastewater purification and treatment equipment as described in claim 4, characterized in that, The upper end of the distribution cylinder (14) is sleeved with an upper sealing plate (15) that is bolted to the upper end of the collection bucket (12). The distribution cylinder (14) is radially connected to a plurality of strong filter tubes (16). The ends of the plurality of strong filter tubes (16) away from the distribution cylinder (14) are all connected to filter element frames (17) by threaded sleeves. The filter element frames (17) are all provided with spherical filter elements (18). The upper end of the distribution cylinder (14) is provided with a drive motor (19). The lower end of the drive motor (19) is connected to a drive crankshaft (20) located inside the distribution cylinder (14) through an output shaft. The lower end of the drive crankshaft (20) is connected to a spiral rod (21) located inside the suction pipe (11).

6. The prefabricated wastewater purification and treatment equipment as described in claim 5, characterized in that, The drive crankshaft (20) consists of a crank and a connecting rod journal, and multiple first transmission connecting rods (22) inserted into the strong filter tube (16) are rotatably connected to the outside of the journal. Each of the multiple strong filter tubes (16) is slidably connected to a pressure piston (23), and a rubber sealing ring is provided between the pressure piston (23) and the pressure piston (23). A second transmission connecting rod (24) is provided inside the multiple pressure pistons (23) near the end of the distribution cylinder (14) and passes through the first transmission connecting rod (22).

7. The prefabricated sewage purification and treatment equipment as described in claim 6, characterized in that, The strong filter tube (16) and the pressurizing piston (23) are provided with multiple connecting holes (25) at the end away from the distribution cylinder (14), and a sealing plate (26) is provided at the end of the multiple connecting holes (25) away from the distribution cylinder (14). The end of the multiple sealing plates (26) near the distribution cylinder (14) is connected to a telescopic rod (27) that passes through the connecting hole (25), and a spring retaining ring (28) is connected through the telescopic rod (27). A sealing spring (29) sleeved on the outside of the telescopic rod (27) is provided between the multiple spring retaining rings (28) and the connecting hole (25).

8. The prefabricated sewage purification and treatment equipment as described in claim 6, characterized in that, The cleaning assembly includes a drive rod (30). The end of the pressurizing piston (23) near the spherical filter element (18) is connected to the drive rod (30), and the drive rod (30) extends to the outside of the strong filter tube (16) and passes through the inside of the spherical filter element (18). The end of the drive rod (30) away from the pressurizing piston (23) is radially connected to two symmetrical drive rollers (31) by screws. The filter element frame (17) is provided with connecting pipe heads at both ends near and away from the strong filter tube (16).

9. The prefabricated sewage purification and treatment equipment as described in claim 8, characterized in that, Both of the two connecting pipe heads are provided with a limiting frame (32), and the two limiting frames (32) are rotatably connected to a linkage pipe shaft (33) sleeved on the outside of the drive plug (30). Two rotationally symmetrical spiral grooves (34) are opened on the outer wall of the linkage pipe shaft (33), and two drive rollers (31) are slidably connected in the two spiral grooves (34).

10. The prefabricated sewage purification and treatment equipment as described in claim 9, characterized in that, The linkage tube shaft (33) is externally connected to multiple connecting rods (35), and multiple cleaning scrapers (36) that are attached to the inner wall of the spherical filter element (18) are connected through the multiple connecting rods (35). The multiple cleaning scrapers (36) are wider on the side closer to the strong filter tube (16) than on the side farther away from the strong filter tube (16). The filter element frame (17) is connected to a sludge collection bottle (37) through a threaded sleeve at the end away from the strong filter tube (16).

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