Wastewater multi-stage treatment equipment for municipal engineering

Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to wastewater multi-stage treatment equipment for municipal engineering, which comprises a main body, the main body is communicated with a filter box, and a filter pipe and a blanking pipe are connected in the filter box; the filtering assembly comprises a rotating rod, the rotating rod is sleeved with a filtering plate, the right side of the main body communicates with a feeding pipe, and a water screening plate is connected into the feeding pipe; the regulation and control assembly comprises a linkage rod, a scraping plate and an isolation plate are arranged on the outer ring of the linkage rod, a limiting pipe is connected into the main body, a locking rod and a driving rod slide in an inner cavity of the limiting pipe, and the driving rod slides in the rotating rod; the stirring assembly comprises a stirring rod; the aeration assembly is connected to the lower end of the main body. According to the sewage stirring device, the filter plates can be conveniently detached and replaced, sewage can be stirred, meanwhile, the filter plates can be cleaned through power for stirring the sewage, pre-aeration can be conducted in the sewage stirring process, the stirring efficiency is improved, and meanwhile the aeration time is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to multi-stage wastewater treatment equipment for municipal engineering. Background Art

[0002] Existing wastewater treatment processes usually rely on filtration and aeration for treatment, but there are still some problems in traditional wastewater treatment processes.

[0003] First, a large amount of dirt will accumulate during the filtration process of sewage. After long-term use, this dirt will cause clogging of the filter components and affect the flow efficiency of sewage. The existing technology is too troublesome to clean the dirt. Small filters usually rely on backwashing structures for treatment, but the use of backwashing technology for cleaning larger structures is not only costly, but also usually requires long-term shutdown operations during backwashing, which greatly affects the treatment efficiency.

[0004] Secondly, existing sewage treatment equipment usually separates physical filtration and biochemical aeration, and the filtered sewage needs to be lifted to the aeration tank again. During the sewage transportation process, the need to lift or transport the sewage increases the overall energy consumption of the device, resulting in waste of resources. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-stage wastewater treatment equipment for municipal engineering, which can realize the convenient disassembly and replacement of the filter plate, and can use the power of stirring the sewage to clean the filter plate while stirring the sewage. It can also perform pre-aeration during the sewage stirring process, thereby improving the stirring efficiency and saving aeration time.

[0006] The technical solutions adopted by the present invention are as follows:

[0007] A multi-stage wastewater treatment equipment for municipal engineering, comprising:

[0008] The main body, the upper end of the main body is connected to the filter box, the inner cavity of the filter box is connected to the filter tube, and the right side of the filter tube is connected to the feed pipe;

[0009] The filter assembly includes a rotating rod, which is rotatably connected to the inner cavity of the main body. The outer ring of the rotating rod is movably sleeved with four groups of filter plates. The main body is connected to a feed pipe on the right side of the upper end of the filter plate. The feed pipe is connected to the discharge pipe, and the inner cavity of the feed pipe is fixedly connected to a water screen plate.

[0010] The regulating assembly includes a linkage rod, the outer ring of the linkage rod is fixedly connected to a scraper, the outer end of the scraper is fixedly connected to an isolation plate, and the isolation plate is in contact with the inlet of the feed pipe, the upper end of the inner cavity of the main body is fixedly connected to a limit tube, the inner cavity of the limit tube is slidably connected to a locking rod, the lower end of the locking rod is fixedly connected to a driving rod, and the locking rod and the driving rod are slidably connected to the inner cavity of the limit tube, the linkage rod and the rotating rod;

[0011] The stirring assembly includes a stirring rod, which is rotatably connected to the outer ring of the lower end of the rotating rod;

[0012] an aeration assembly, the aeration assembly being connected to the lower end of the main body;

[0013] Among them, the linkage rod is divided into two states. In the locked state, the locking rod and the driving rod slide into the inner cavity of the linkage rod and the limit tube, so that the upper and lower ends of the locking rod are respectively located in the inner cavity of the linkage rod and the limit tube, and the linkage rod is adjusted to the locked state;

[0014] In the linkage state, the locking rod and the driving rod slide to the inner cavity of the linkage rod and the rotating rod, so that the locking rod is separated from the limiting tube, and the linkage rod is adjusted to the linkage state driven by the rotating rod.

[0015] In a preferred embodiment, the upper end of the main body is connected to a delivery pipe, the upper end inlet of the delivery pipe is connected to the filter box, the upper end of the filter box is provided with a water inlet, and the right side of the filter box is connected to a sewer pipe, the right end of the filter pipe is sleeved on the inner cavity of the sewer pipe, and the right end of the filter pipe is fixedly connected to the right end of the inner cavity of the sewer pipe.

[0016] In a preferred embodiment, the upper end inlet of the discharge pipe passes through the sewer pipe and is connected to the filter pipe, and a motor 1 is fixedly installed on the right end of the sewer pipe, and an auger is fixedly connected to the output shaft of the motor 1. The auger is rotatably connected to the right end of the sewer pipe, and the left end of the auger is rotatably connected to the inner cavity of the filter box, and the lower end of the discharge pipe is connected to the collection box.

[0017] In a preferred embodiment, an annular groove is provided in the inner cavity of the main body, and four groups of filter plates are movably inserted in the annular groove and the upper outer ring of the rotating rod. The filter assembly also includes a positioning groove, which is provided on one side of the filter plate, and a positioning block is fixedly connected to the other side of the filter plate. A sealing door is hinged on the rear side of the outer edge of the main body at the position of the annular groove.

[0018] In a preferred embodiment, a discharge port is opened on the right side of the inner cavity of the main body at the upper end of the filter plate, the inlet of the feed pipe is connected to the discharge port, and a liquid discharge port is opened on the left side of the inner cavity of the feed pipe at the position below the filter plate, and the outlet of the liquid discharge port is connected to the inner cavity of the main body.

[0019] In a preferred embodiment, strip grooves are provided on both sides of the limiting tube, and the regulating assembly also includes a lifting frame, which is slidably connected to the inner cavity of the limiting tube, and the left and right ends of the lifting frame are slidably connected to the strip grooves on both sides of the limiting tube, the upper end of the lifting frame passes through the main body and is placed on the upper end of the main body, the upper end of the locking rod is rotatably connected to the middle part of the lower end of the lifting frame, and an electric push rod is fixedly installed on the upper end of the main body, and the output end of the electric push rod is fixedly connected to the upper end of the inner ring of the lifting frame.

[0020] In a preferred embodiment, the lower end of the inner cavity at the upper end of the rotating rod is fixedly connected to a plug-in rod, and the plug-in rod is movably plugged into the lower end of the inner cavity of the driving rod.

[0021] In a preferred embodiment, the stirring assembly also includes motor 2, which is fixedly mounted on the lower end of the main body, and the lower end of the rotating rod is fixedly connected to the output shaft of motor 2. The outer ring of the stirring rod near one end of the rotating rod is fixedly connected to a gear ring, and the lower end of the inner cavity of the main body is fixedly connected to an isolation tube. The outer ring of the stirring rod is movably sleeved in the inner cavity of the isolation tube, and a toothed groove is opened at the upper end of the isolation tube, and the outer ring of the gear ring engages in the toothed groove.

[0022] In a preferred embodiment, the outer ring of the stirring rod is fixedly connected to multiple groups of protruding rods.

[0023] In a preferred embodiment, the aeration assembly includes an aeration tank, which is arranged at the lower end of the main body and is connected to the outlet of the main body. An air pump is provided at the lower end of the main body, and the outlet of the air pump is connected to a diversion pipe. The outlets of the diversion pipes are respectively connected to an annular pipe and an E-shaped pipe. The annular pipe is fixedly connected to the lower end of the main body, and the E-shaped pipe is fixedly connected to the lower end of the aeration tank. The upper ends of the annular pipe and the E-shaped pipe are connected to multiple groups of blowing pipes, and the upper end outlets of the blowing pipes are respectively located at the lower ends of the inner cavities of the main body and the aeration tank.

[0024] The technical effects achieved by the present invention are:

[0025] The filter assembly of the present invention can realize the convenient disassembly and replacement of the filter plates, which is convenient for subsequent maintenance. During the docking process, the four sets of filter plates are spliced together in sequence to form a complete filter component. When disassembly and replacement are required, only the filter plate to be replaced needs to be taken out and replaced.

[0026] The regulating assembly, filter assembly and regulating assembly of the present invention can stir sewage and use the power of stirring sewage to clean the filter plate, thereby improving the practicality of the device; during use, if the filter plate does not need to be cleaned, the regulating assembly will drive the locking rod to be located between the limit tube and the linkage rod to fix the linkage rod; if cleaning is required, the locking rod is driven down into the linkage rod and the driving rod is connected to the rotating rod, and the rotating rod drives the linkage rod to rotate, thereby driving the scraper and the isolation plate to clean the garbage on the filter plate and discharge it, thereby improving the practicality of the device;

[0027] The aeration assembly and stirring assembly of the present invention can perform pre-aeration during sewage stirring, thereby improving stirring efficiency and saving aeration time. When the sewage is filtered and stirred, the driving component of the stirring assembly drives the rotating rod and the stirring rod to rotate, and at the same time, the stirring rod is driven by the linkage part of the stirring assembly to rotate vertically, thereby realizing two-way stirring of the sewage and improving the mixing effect. At the same time, the aeration assembly transports part of the oxygen into the main body through diversion, thereby pre-aerating the sewage being stirred, further improving the stirring efficiency and reducing the time of subsequent aeration. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a cross-sectional schematic diagram of the filter box in the present invention;

[0030] Figure 3 It is a schematic cross-sectional view of the main body of the present invention;

[0031] Figure 4 It is a cross-sectional schematic diagram of the feeding pipe in the present invention;

[0032] Figure 5 This is a diagram showing the splitting effect of the filter plate in the present invention;

[0033] Figure 6 It is a rear view schematic diagram of the main body of the present invention;

[0034] Figure 7 Schematic diagram of the position of the regulatory components in the present invention;

[0035] Figure 8 is a schematic cross-sectional view of the control component of the present invention;

[0036] Figure 9 This is a diagram showing the effect of the locking rod rising in the present invention;

[0037] Figure 10 This is a disassembled rendering of the locking rod, the driving rod, and the linkage rod in the present invention;

[0038] Figure 11This is a diagram showing the effect of the locking rod descending in the present invention;

[0039] Figure 12 It is a schematic diagram of the position of the stirring component in the present invention;

[0040] Figure 13 is a schematic cross-sectional view of the stirring assembly of the present invention;

[0041] Figure 14 It is a schematic diagram of the position of the aeration component in the present invention;

[0042] Figure 15 is a bottom view schematic diagram of the aeration assembly of the present invention;

[0043] Figure 16 It is a structural schematic diagram of the annular tube and the E-shaped tube in the present invention.

[0044] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0045] 10. Main body; 11. Delivery pipe; 12. Filter box; 13. Water inlet; 14. Drain pipe; 15. Filter tube; 16. Motor 1; 17. Auger; 18. Discharge pipe; 19. Collection box; 20. Filter assembly; 21. Rotating rod; 22. Filter plate; 23. Positioning groove; 24. Positioning block; 25. Sealing door; 26. Feed pipe; 27. Discharge port; 28. Water screen plate; 29. Drain port; 30. Control assembly; 31. Linkage rod; 32. Scraper; 33. Isolation plate; 34. Limiting pipe; 35. Lifting frame;

[0046] 36. Electric push rod; 37. Locking rod; 38. Drive rod; 39. Connecting rod; 40. Stirring assembly; 41. Motor 2; 42. Stirring rod; 43. Gear ring; 44. Isolation tube; 45. Toothed groove; 50. Aeration assembly; 51. Aeration tank; 52. Air pump; 53. Diverter pipe; 54. Ring pipe; 55. E-shaped pipe; 56. Blowing pipe. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0049] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0050] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0051] Please see the attached Figures 1 to 4 、 Figure 8 、 Figure 12 As shown, this embodiment provides a multi-stage wastewater treatment equipment for municipal engineering, comprising:

[0052] The main body 10 has a filter box 12 at its upper end, a filter tube 15 connected to the inner cavity of the filter box 12, and a feed pipe 18 connected to the right side of the filter tube 15;

[0053] The filter assembly 20 includes a rotating rod 21, which is rotatably connected to the inner cavity of the main body 10 through a sealed bearing. The outer ring of the rotating rod 21 is movably sleeved with four groups of filter plates 22. The four groups of filter plates 22 are plugged together. The main body 10 is connected to a feed pipe 26 on the right side of the upper end of the filter plate 22. The feed pipe 26 is connected to the discharge pipe 18, and the inner cavity of the feed pipe 26 is fixedly connected to a water screen plate 28.

[0054] The regulating assembly 30 includes a linkage rod 31. The outer ring of the linkage rod 31 is fixedly connected to a scraper 32. The outer end of the scraper 32 is fixedly connected to an isolation plate 33, and the isolation plate 33 contacts the inlet of the feed pipe 26. The upper end of the inner cavity of the main body 10 is fixedly connected to a limit tube 34. The inner cavity of the limit tube 34 is slidably connected to a locking rod 37. The lower end of the locking rod 37 is fixedly connected to a driving rod 38. The locking rod 37 and the driving rod 38 are slidably connected to the inner cavity of the limit tube 34, the linkage rod 31 and the rotating rod 21.

[0055] The stirring assembly 40 includes a stirring rod 42, which is rotatably connected to the outer ring of the lower end of the rotating rod 21 through a sealed bearing;

[0056] an aeration assembly 50 , the aeration assembly 50 being connected to the lower end of the main body 10 ;

[0057] The linkage rod 31 is divided into two states. In the locked state, the locking rod 37 and the driving rod 38 slide along the inner cavity of the linkage rod 31 to the inner cavity of the linkage rod 31 and the limiting tube 34, so that the upper and lower ends of the locking rod 37 are respectively located in the inner cavity of the linkage rod 31 and the limiting tube 34, and the linkage rod 31 is adjusted to the locked state.

[0058] In the linkage state, the locking rod 37 and the driving rod 38 slide into the inner cavity of the linkage rod 31 and the rotating rod 21, so that the locking rod 37 disengages from the limiting tube 34 and drives the driving rod 38 to connect with the rotating rod 21, adjusting the linkage rod 31 to a linkage state driven by the rotating rod 21.

[0059] It should be noted that the lower ends of the inner cavities of the main body 10 and the filter box 12 are both provided with slopes in order to facilitate the discharge of sewage;

[0060] The right side of the main body 10 is provided with a hole (such as Figure 7 As shown), it is intended that the liquid for purification can be input into the inner cavity of the main body 10 through the hole when in use;

[0061] The lower end of the linkage rod 31 is rotatably connected to the upper end of the rotating rod 21 through a sealed bearing, and the upper end of the linkage rod 31 is rotatably connected to the lower end of the limiting tube 34 through a sealed bearing.

[0062] Preferably, in order to ensure that the isolation plate 33 covers the position of the entrance of the feed pipe 26 every time the linkage rod 31 is in the locked state, a position sensor can be set on the outer ring of the lower end of the rotating rod 21, and the specific angle when the isolation plate 33 covers the entrance of the feed pipe 26 is recorded, so as to facilitate the adjustment of the operating state of the linkage rod 31 after the rotating rod 21 is rotated to the specified angle.

[0063] Preferably, in order to ensure the normal operation of the device, an electric-controlled water pump should be installed on the right side of the main body 10, and the water pump should be connected to the unit for storing the purification liquid (this is a common technical structure in the prior art and will not be elaborated on in detail), so that the liquid used to purify sewage can be continuously input into the main body 10 through the electric-controlled water pump to be mixed with the sewage.

[0064] In this embodiment, after entering the filter box 12, the sewage undergoes preliminary filtration through the filter tube 15 to remove larger impurities before flowing into the main body 10. Within the main body 10, the sewage is further filtered by the filter plate 22. The pores in the filter plate 22 effectively trap suspended solids and particulate matter in the sewage, further purifying the sewage. When the filter plate 22 needs to be cleaned or replaced, it can be adjusted using the control assembly 30. In the locked state, the locking rod 37 and the drive rod 38 are located within the inner cavity of the linkage rod 31 and the stop tube 34, securing the linkage rod 31. This keeps the scraper 32 and isolation plate 33 stationary and does not interfere with the normal operation of the filter plate 22. When cleaning is required, the control assembly 30 drives the locking rod 37 down into the linkage rod 31, connecting the drive rod 38 to the rotating rod 21. As the rotating rod 21 rotates, the linkage rod 31 also rotates, driving the scraper 32 and isolation plate 33 to move toward the inlet of the feed pipe 26, clearing the debris from the filter plate 22 and discharging it through the feed pipe 26. Subsequently, the stirring rod 42 rotates, driven by the rotating rod 21, stirring the filtered wastewater. This evenly distributes suspended solids and particulate matter in the wastewater, facilitating subsequent filtration and purification. During this stirring process, the aeration assembly 50 also performs pre-aeration. This further enhances the agitation effect and increases the oxygen content of the wastewater, facilitating subsequent treatment.

[0065] Next, please refer to Figures 1 to 2 The upper end of the main body 10 is connected to a delivery pipe 11, the upper end inlet of the delivery pipe 11 is connected to the filter box 12, the upper end of the filter box 12 is provided with a water inlet 13, and the right side of the filter box 12 is connected to a sewer pipe 14, the right end of the filter pipe 15 is sleeved in the inner cavity of the sewer pipe 14, and the right end of the filter pipe 15 is fixedly connected to the right end of the inner cavity of the sewer pipe 14;

[0066] The upper end inlet of the discharge pipe 18 passes through the sewer pipe 14 and is connected to the filter tube 15, and a motor 16 is fixedly installed on the right end of the sewer pipe 14, and an auger 17 is fixedly connected to the output shaft of the motor 16. The auger 17 is rotatably connected to the right end of the sewer pipe 14 through a sealed bearing, and the left end of the auger 17 is rotatably connected to the inner cavity of the filter box 12 through a sealed bearing. The lower end of the discharge pipe 18 is connected to the collection box 19.

[0067] It should be noted that the portion of the filter tube 15 located in the inner cavity of the filter box 12 is a semicircular pipe, and both the front and rear sides of the semicircular pipe are fixedly connected with upwardly inclined inclined plates, so that the sewage entering the inner cavity of the filter box 12 can first enter the inner cavity of the filter tube 15 for primary filtration;

[0068] A through slot is provided on the right side of the filter box 12 at the lower end of the filter tube 15. A gap exists between the downpipe 14 and the outer wall of the filter tube 15, and the through slot is provided at the lower end of the gap, so that the sewage filtered out of the filter tube 15 can flow back into the filter box 12 through the gap and the through slot.

[0069] A door is hinged on the right side of the collection box 19 to facilitate the discharge of the waste collected in the collection box 19.

[0070] Preferably, in order to ensure that the waste and liquid can be separated, a filter screen made of corrosion-resistant material (such as stainless steel) can be set at the lower end of the inner cavity of the collection box 19, so that solid-liquid separation can be performed when the waste is piled up and stored, and to avoid the waste and sewage from being piled up together for a long time and generating odor.

[0071] In this embodiment, after sewage enters filter box 12 through water inlet 13, it first flows into filter tube 15, where it undergoes preliminary filtration to remove larger impurities. The filtered sewage then flows along filter tube 15 into delivery pipe 11. Simultaneously, motor 16 drives auger 17 to rotate, pushing impurities and sediment adhering to the inner wall of filter tube 15 toward discharge pipe 18, ultimately discharging into collection box 19 for collection.

[0072] Next, please refer to Figures 3 to 6 The inner cavity of the main body 10 is provided with an annular groove, and four groups of filter plates 22 are movably inserted in the annular groove and the upper outer ring of the rotating rod 21. The filter assembly 20 also includes a positioning groove 23, which is provided on one side of the filter plate 22, and the other side of the filter plate 22 is fixedly connected with a positioning block 24. A sealing door 25 is hinged on the rear side of the outer edge of the main body 10 at the position of the annular groove;

[0073] A discharge port 27 is opened on the right side of the inner cavity of the main body 10 at the upper end of the filter plate 22, and the inlet of the feed pipe 26 is connected to the discharge port 27, and a drain port 29 is opened on the left side of the inner cavity of the feed pipe 26 at the position below the filter plate 22, and the outlet of the drain port 29 is connected to the inner cavity of the main body 10.

[0074] It should be noted that the water screen plate 28 is provided between the discharge port 27 and the liquid discharge port 29 so that when the impurities are discharged through the feed pipe 26 , the liquid in the impurities can still be screened out through the water screen plate 28 ;

[0075] The filter plate 22 and the water screen plate 28 have the same aperture, and the aperture of the filter plate 22 and the water screen plate 28 is smaller than the filtration aperture of the filter tube 15, in order to achieve double filtration by using the filter plate 22 and the filter tube 15, thereby improving the efficiency of water flow during filtration;

[0076] The filter plates 22 are quarter-circular structural plates, and four groups of filter plates 22 are combined to form a complete circle. At the same time, the positioning grooves 23 completely penetrate one of the longer sides of the filter plates 22, while the positioning blocks 24 completely cover the other longer side of the filter plates 22. The positioning blocks 24 and the positioning grooves 23 are intended to improve the sealing performance of the filter plates 22 when connected together.

[0077] Two sets of limiting rings are provided on the upper end of the rotating rod 21 , and one end of the filter plate 22 close to the center of the main body 10 is movably inserted between the two sets of limiting rings.

[0078] Preferably, in order to ensure that the filter plate 22 can be easily disassembled, a groove should be provided on the outer ring of the filter plate 22 for easy pushing, rotating and pulling out, so that after opening the sealing door 25, the filter plate 22 can be pushed to rotate or the filter plate 22 can be taken out through the groove, which is convenient for subsequent maintenance.

[0079] In this embodiment, during use, the sealing door 25 can be opened, and the filter plate 22 can be inserted into the inner cavity of the main body 10 and sleeved onto the outer ring of the rotating rod 21. The positioning block 24 and the positioning groove 23 engage with each other, achieving a sealed and fixed filter plate 22. The wastewater is then filtered through the filter plate 22. When a large amount of impurities accumulate on the filter plate 22 and need to be cleaned, the position of the filter plate 22 can be adjusted using the control assembly 30, allowing the impurities to enter the feed pipe 26 through the discharge port 27 and ultimately discharge into the collection box 19. During the feeding process, the water screen plate 28 effectively separates the liquid from the impurities, preventing the liquid from flowing into the discharge pipe 18.

[0080] Next, please refer to Figures 7 to 11 , both sides of the limiting tube 34 are provided with strip grooves, and the regulating assembly 30 also includes a lifting frame 35, the lifting frame 35 is slidably connected to the inner cavity of the limiting tube 34, and the left and right ends of the lifting frame 35 are slidably connected to the strip grooves on both sides of the limiting tube 34, the upper end of the lifting frame 35 passes through the main body 10 and is placed on the upper end of the main body 10, the upper end of the locking rod 37 is rotatably connected to the middle part of the lower end of the lifting frame 35, and the upper end of the main body 10 is fixedly installed with an electric push rod 36, and the output end of the electric push rod 36 is fixedly connected to the upper end of the inner ring of the lifting frame 35;

[0081] The lower end of the inner cavity of the upper end of the rotating rod 21 is fixedly connected with the plug rod 39, and the plug rod 39 is movably plugged into the lower end of the inner cavity of the driving rod 38.

[0082] It should be noted that the lifting frame 35 is composed of two sets of long rods and two sets of long plates, and the long plate at the upper end is fixedly connected to the electric push rod 36, and the long plate at the lower end is slidably connected to the limit tube 34, and both sets of long rods are slidably connected to the upper end of the main body 10;

[0083] The locking rod 37 and the plug rod 39 are both hexagonal long rods, while the outer edge of the driving rod 38 is a cylindrical structure. The upper end inner cavity of the linkage rod 31 and the inner cavity of the limiting tube 34, as well as the lower end inner cavity of the driving rod 38 are all provided with a hexagonal groove. The width of the hexagonal groove of the inner cavity of the linkage rod 31 and the limiting tube 34 is adapted to the width of the locking rod 37, while the width of the plug rod 39 is adapted to the width of the hexagonal groove of the inner cavity of the lower end of the driving rod 38. The upper ends of the locking rod 37 and the upper ends of the plug rod 39 are both rounded to enable the locking rod 37 and the plug rod 39 to be smoothly inserted into the limiting tube 34 and the driving rod 38.

[0084] When the lifting frame 35 rises to the top of its travel, the locking rod 37 is still unable to separate from the linkage rod 31. The upper end of the locking rod 37 can only be placed on the limit tube 34, while the lower end is still located in the inner cavity of the linkage rod 31. In addition, when the lifting frame 35 rises to the top of its travel, the driving rod 38 is completely separated from the plug rod 39. This is to ensure that after the lifting frame 35 rises, the linkage rod 31 will be restricted by the fixed limit tube 34 and the locking rod 37 and cannot rotate, and the driving rod 38 cannot be driven to rotate by the plug rod 39.

[0085] When the lifting frame 35 descends to the bottom of its travel, the locking rod 37 is completely separated from the limiting tube 34 and is completely placed in the inner cavity of the linkage rod 31. The driving rod 38 is also connected to the plug rod 39. This is so that after the lifting frame 35 descends, the linkage rod 31 is unlocked and the driving rod 38 is also driven to rotate by the plug rod 39. At this time, the rotating driving rod 38 can drive the limiting tube 34 to rotate stably through the hexagonal locking rod 37.

[0086] The scraper 32 is provided with a scraper at the portion of the lower end that contacts the filter plate 22, and the overall shape of the scraper 32 is an arc-shaped structure, so that when the scraper 32 rotates, the scraper can scrape the waste material on the filter plate 22 through the scraper, and push the scraped waste material to the edge of the inner cavity of the main body 10 through the arc-shaped scraper 32 for subsequent discharge;

[0087] The isolation plate 33 completely covers the discharge port 27 in the normal state, and a scraper is provided on the outside of the isolation plate 33, which is intended to scrape off the waste located at the edge of the inner cavity of the main body 10, and when the scraper 32 rotates, the isolation plate 33 is driven to open the discharge port 27, so that the scraper 32 can push the waste into the discharge port 27 for discharge during the process of pushing the waste.

[0088] Preferably, the rotation process of the rotating rod 21 and the linkage rod 31 is counterclockwise rotation, and the tilt direction of the scraper 32, as well as the scraper setting positions on the scraper 32 and the isolation plate 33 are all adapted to the counterclockwise rotation process.

[0089] In this embodiment, when the linkage rod 31 needs to be locked, the electric push rod 36 pushes the lifting frame 35 to rise, so that the upper end of the locking rod 37 enters the inner cavity of the limiting tube 34, while the lower end remains in the inner cavity of the linkage rod 31. Since the inner cavities of the locking rod 37, the linkage rod 31, and the limiting tube 34 are all designed as hexagonal groove structures, this design ensures that the locking rod 37 can remain stable after insertion and is not prone to self-rotation. At this time, the drive rod 38 is completely disengaged from the plug rod 39, and the linkage rod 31 is therefore fixed in a locked state and cannot rotate. When it is necessary to adjust the linkage rod 31 to the linkage state and to clean the filter plate 22, the electric push rod 36 pulls the lifting frame 35 down, and the locking rod 37 is then completely disengaged from the limiting tube 34 and enters the inner cavity of the linkage rod 31. At the same time, the drive rod 38 is connected to the plug rod 39. Because the plug-in rod 39 is also a long, hexagonal rod, it fits tightly into the hexagonal groove at the lower end of the drive rod 38, ensuring stable rotation of the drive rod 38. At this point, the linkage rod 31 is unlocked and becomes operatively driven by the rotating rod 21. The rotating rod 21 then drives the drive rod 38 and the linkage rod 31 through the plug-in rod 39, driving the scraper 32 and the separator 33 to rotate. The scraper 32, with its blades attached, rests against the surface of the filter plate 22, scraping away accumulated impurities and waste. Its curved structure pushes the waste toward the edges of the main body 10. Simultaneously, as the separator 33 rotates, its outer blades further scrape waste from the edges of the main body 10. As the separator 33 moves, it opens the discharge port 27, allowing the waste pushed by the scraper 32 to enter the feed pipe 26 and ultimately discharge into the collection bin 19 through the discharge pipe 18.

[0090] Please refer again Figures 12 to 14 The stirring assembly 40 also includes a second motor 41, which is fixedly mounted on the lower end of the main body 10, and the lower end of the rotating rod 21 is fixedly connected to the output shaft of the second motor 41. The outer ring of the stirring rod 42, which is close to one end of the rotating rod 21, is fixedly connected to a gear ring 43. The lower end of the inner cavity of the main body 10 is fixedly connected to an isolation tube 44. The outer ring of the stirring rod 42 is movably sleeved in the inner cavity of the isolation tube 44, and the upper end of the isolation tube 44 is provided with a toothed groove 45. The outer ring of the gear ring 43 is engaged in the toothed groove 45.

[0091] The outer ring of the stirring rod 42 is fixedly connected with multiple groups of protruding rods, so that when the stirring rod 42 rotates through the gear ring 43 and the toothed groove 45, the protruding rods can be used to stir and mix in the vertical direction.

[0092] It should be noted that the stirring rod 42 and the isolation tube 44 are rotatably connected via a sealed bearing, in order to improve the sealing effect and prevent sewage from leaking through the isolation tube 44 .

[0093] In this embodiment, after filtering, the wastewater is mixed with the purification solution. At this point, motor 2 (41) drives the rotating rod (21) to rotate. Simultaneously, the stirring rod (42) on the rotating rod (21) also rotates, stirring the mixed wastewater. Simultaneously, the stirring rod (42) and the toothed ring (43) move over the toothed groove (45). The toothed ring (43) and the stirring rod (42) rotate in coordination with the toothed groove (45) and the toothed ring (43). This achieves both horizontal stirring and vertical mixing, improving mixing uniformity.

[0094] Please refer again Figures 14 to 16 The aeration assembly 50 includes an aeration tank 51, which is arranged at the lower end of the main body 10 and is connected to the outlet of the main body 10. An air pump 52 is provided at the lower end of the main body 10, and the outlet of the air pump 52 is connected to a diversion pipe 53. The outlets of the diversion pipe 53 are respectively connected to an annular pipe 54 and an E-shaped pipe 55. The annular pipe 54 is fixedly connected to the lower end of the main body 10, and the E-shaped pipe 55 is fixedly connected to the lower end of the aeration tank 51. The upper ends of the annular pipe 54 and the E-shaped pipe 55 are both connected to multiple groups of blowing pipes 56. The upper end outlets of the blowing pipes 56 are respectively located at the lower ends of the inner cavities of the main body 10 and the aeration tank 51.

[0095] It should be noted that the portion connecting the main body 10 and the aeration tank 51 is provided with an electrically controlled valve (not shown in the figure, and this is a common technical structure in the prior art, so no further description is given). This is to allow the filtered sewage in the main body 10 to pass through the valve and be fully mixed with the liquid medicine. In addition, it can be pre-aerated during the mixing process to improve the effect of subsequent treatment.

[0096] A slope is provided at the entrance of the aeration tank 51 to facilitate the smooth flow of sewage into the aeration tank 51;

[0097] The air blowing pipes 56 are all equipped with one-way valves to prevent sewage from entering the air pump 52 through the air blowing pipes 56 and causing damage to the air pump 52 .

[0098] Here, in order to ensure that the sewage in the aeration tank 51 and the main body 10 can be fully aerated, the inlet of the air pump 52 should be connected to the oxygen supply equipment (this is a common technical structure in the prior art and will not be elaborated on in detail), so as to input the oxygen in the oxygen supply equipment into the main body 10 and the aeration tank 51 through the air pump 52.

[0099] Preferably, in order to cope with different purification scenarios, multiple groups of aeration tanks 51 and E-shaped pipes 55 can be provided and interconnected so that the sewage can be fully aerated.

[0100] In this embodiment, when the sewage is stirred, the air pump 52 starts working and sends oxygen into the annular tube 54 and the E-shaped tube 55 respectively through the diversion pipe 53. Subsequently, the oxygen is evenly released into the sewage in the main body 10 and the aeration tank 51 through multiple groups of blowing pipes 56, pre-aerating the sewage in the main body 10, increasing the dissolved oxygen content in the sewage, promoting the activity of microorganisms, and improving the biological treatment efficiency of the sewage. In the aeration tank 51, the sewage will be further mixed with oxygen to achieve deep aeration treatment. At the same time, the electronically controlled valve is opened in time according to the treatment needs, so that the sewage that has been preliminarily treated by the main body 10 enters the aeration tank 51, ensuring that the sewage is fully aerated while mixing with the liquid medicine, laying a good foundation for the subsequent deep purification process.

[0101] The working principle of the present invention is as follows: when in use, the sealing door 25 is opened, the filter plate 22 is inserted into the inner cavity of the main body 10, and is sleeved on the outer ring of the rotating rod 21. The positioning block 24 and the positioning groove 23 are mutually engaged to achieve a sealed fixation of the filter plate 22. The sewage then enters the filter box 12 through the water inlet 13 and flows into the filter tube 15, filtering out larger impurities. The filtered sewage flows along the filter tube 15 into the delivery pipe 11 and the main body 10, and is filtered by the filter plate 22. At the same time, the motor 16 drives the auger 17 to rotate, pushing the impurities in the filter tube 15 to the discharge pipe 18 and discharged into the collection box 19. When it is necessary to adjust the linkage rod 31 to the linkage state and clean the filter plate 22, the electric push rod 36 drives the lifting frame 35 to descend, and the locking rod 37 then completely disengages the limit tube 34 and enters the linkage rod 31. At the same time, the drive rod 38 is connected to the plug rod 39. At this point, the linkage rod 31 is unlocked, and the rotating rod 21 then drives the drive rod 38 and the linkage rod 31 to rotate together through the plug-in rod 39, driving the scraper 32 and the isolation plate 33 to rotate. The scraper 32 scrapes impurities off the filter plate 22 and, through its curved structure, pushes the waste toward the edge of the inner cavity of the main body 10. When the isolation plate 33 shifts, it opens the discharge port 27, allowing the waste pushed by the scraper 32 to smoothly enter the feed pipe 26 and ultimately be discharged into the collection box 19 through the discharge pipe 18. The water screen plate 28 can effectively separate the liquid from the impurities, allowing the liquid to flow back into the inner cavity of the main body 10. After being filtered, the sewage is mixed with the purification liquid. At this time, the motor 2 41 drives the rotating rod 21 to rotate. At the same time, the stirring rod 42 on the rotating rod 21 also rotates, stirring the mixed sewage. At the same time, stirring rod 42 and toothed ring 43 move over toothed groove 45, causing toothed ring 43 and stirring rod 42 to rotate as they move, relying on the coordination between toothed groove 45 and toothed ring 43. This achieves both horizontal stirring and vertical mixing, improving mixing uniformity. Furthermore, air pump 52 delivers oxygen through diverter pipe 53 into annular pipe 54 and E-shaped pipe 55, respectively. Subsequently, oxygen is evenly released into the sewage within main body 10 and aeration tank 51 through multiple sets of air blowing pipes 56, pre-aerating the sewage within main body 10. Within aeration tank 51, the sewage is further mixed with oxygen, achieving deep aeration treatment, laying a good foundation for the subsequent deep purification process.

[0102] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A multi-stage wastewater treatment equipment for municipal engineering, characterized by: include: The main body, the upper end of the main body is connected to the filter box, the inner cavity of the filter box is connected to the filter tube, and the right side of the filter tube is connected to the feed pipe; The filter assembly includes a rotating rod, which is rotatably connected to the inner cavity of the main body. The outer ring of the rotating rod is movably sleeved with four groups of filter plates. The main body is connected to a feed pipe on the right side of the upper end of the filter plate. The feed pipe is connected to the discharge pipe, and the inner cavity of the feed pipe is fixedly connected to a water screen plate. The regulating assembly includes a linkage rod, the outer ring of the linkage rod is fixedly connected to a scraper, the outer end of the scraper is fixedly connected to an isolation plate, and the isolation plate is in contact with the inlet of the feed pipe, the upper end of the inner cavity of the main body is fixedly connected to a limit tube, the inner cavity of the limit tube is slidably connected to a locking rod, the lower end of the locking rod is fixedly connected to a driving rod, and the locking rod and the driving rod are slidably connected to the inner cavity of the limit tube, the linkage rod and the rotating rod; The stirring assembly includes a stirring rod, which is rotatably connected to the outer ring of the lower end of the rotating rod; an aeration assembly, the aeration assembly being connected to the lower end of the main body; Among them, the linkage rod is divided into two states. In the locked state, the locking rod and the driving rod slide into the inner cavity of the linkage rod and the limit tube, so that the upper and lower ends of the locking rod are respectively located in the inner cavity of the linkage rod and the limit tube, and the linkage rod is adjusted to the locked state; In the linkage state, the locking rod and the driving rod slide to the inner cavity of the linkage rod and the rotating rod, so that the locking rod is separated from the limiting tube, and the linkage rod is adjusted to the linkage state driven by the rotating rod.

2. The multi-stage wastewater treatment equipment for municipal engineering according to claim 1, characterized in that: The upper end of the main body is connected to a delivery pipe, the upper end inlet of the delivery pipe is connected to the filter box, the upper end of the filter box is provided with a water inlet, and the right side of the filter box is connected to a sewer pipe, the right end of the filter pipe is sleeved on the inner cavity of the sewer pipe, and the right end of the filter pipe is fixedly connected to the right end of the inner cavity of the sewer pipe.

3. The multi-stage wastewater treatment equipment for municipal engineering according to claim 2, characterized in that: The upper end inlet of the discharge pipe passes through the sewer pipe and is connected to the filter pipe, and a motor is fixedly installed on the right end of the sewer pipe. An auger is fixedly connected to the output shaft of the motor. The auger rotates and is connected to the right end of the sewer pipe, and the left end of the auger is rotated and connected to the inner cavity of the filter box. The lower end of the discharge pipe is connected to the collection box.

4. The multi-stage wastewater treatment equipment for municipal engineering according to claim 1, characterized in that: The inner cavity of the main body is provided with an annular groove, and four groups of filter plates are movably inserted in the annular groove and the upper outer ring of the rotating rod. The filter assembly also includes a positioning groove, which is provided on one side of the filter plate, and the other side of the filter plate is fixedly connected with a positioning block. A sealing door is hinged on the rear side of the outer edge of the main body at the position of the annular groove.

5. The multi-stage wastewater treatment equipment for municipal engineering according to claim 1, characterized in that: A discharge port is opened on the right side of the main body inner cavity at the upper end of the filter plate, and the inlet of the feed pipe is connected to the discharge port, and a liquid discharge port is opened on the left side of the feed pipe inner cavity below the filter plate, and the outlet of the liquid discharge port is connected to the inner cavity of the main body.

6. The multi-stage wastewater treatment equipment for municipal engineering according to claim 1, characterized in that: There are strip grooves on both sides of the limiting tube. The regulating assembly also includes a lifting frame, which is slidably connected to the inner cavity of the limiting tube, and the left and right ends of the lifting frame are slidably connected to the strip grooves on both sides of the limiting tube. The upper end of the lifting frame passes through the main body and is placed on the upper end of the main body. The upper end of the locking rod is rotatably connected to the middle part of the lower end of the lifting frame. An electric push rod is fixedly installed on the upper end of the main body, and the output end of the electric push rod is fixedly connected to the upper end of the inner ring of the lifting frame.

7. The multi-stage wastewater treatment equipment for municipal engineering according to claim 1, characterized in that: The lower end of the inner cavity of the upper end of the rotating rod is fixedly connected with a plug-in rod, and the plug-in rod is movably plugged into the lower end of the inner cavity of the driving rod.

8. The multi-stage wastewater treatment equipment for municipal engineering according to claim 1, characterized in that: The stirring assembly also includes motor 2, which is fixedly mounted on the lower end of the main body, and the lower end of the rotating rod is fixedly connected to the output shaft of motor 2. The outer ring of the stirring rod close to one end of the rotating rod is fixedly connected to a gear ring, and the lower end of the inner cavity of the main body is fixedly connected to an isolation tube. The outer ring of the stirring rod is movably sleeved in the inner cavity of the isolation tube, and a toothed groove is opened at the upper end of the isolation tube, and the outer ring of the gear ring engages in the toothed groove.

9. The multi-stage wastewater treatment equipment for municipal engineering according to claim 8, characterized in that: The outer ring of the stirring rod is fixedly connected with multiple groups of protruding rods.

10. The multi-stage wastewater treatment equipment for municipal engineering according to claim 1, characterized in that: The aeration assembly includes an aeration tank, which is arranged at the lower end of the main body and is connected to the outlet of the main body. An air pump is provided at the lower end of the main body, and the outlet of the air pump is connected to a diversion pipe. The outlets of the diversion pipes are respectively connected to an annular pipe and an E-shaped pipe. The annular pipe is fixedly connected to the lower end of the main body, and the E-shaped pipe is fixedly connected to the lower end of the aeration tank. The upper ends of the annular pipe and the E-shaped pipe are connected to multiple groups of blowing pipes, and the upper end outlets of the blowing pipes are respectively located at the lower ends of the inner cavities of the main body and the aeration tank.

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