Municipal drainage treatment method

By using drive components and removal components in municipal drainage treatment structures, rotating and cleaning debris on the filter cartridge, the problem of low efficiency in cleaning residual garbage and debris on the filter plate in the prior art is solved, and efficient sewage treatment and labor intensity reduction effect is achieved.

CN119951209APending Publication Date: 2025-05-09CHANGZHOU JUTOU CONSTR ENG CO LTD
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Patent Information

Application Number
CN202510278530.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2025-05-09

AI Technical Summary

Technical Problem

After a long-term use of the existing municipal drainage treatment structure, a large amount of garbage remains on the filter plate, which affects the treatment efficiency. It is difficult for existing cleaning methods to effectively remove leaves and other debris on the uneven filter.

Method used

A municipal drainage treatment method is adopted. By driving the filter barrel to rotate by driving the component, the debris intercepted on the filter barrel are transformed from the upper side to the lower side. The cleaning component is used to clean it to ensure that the debris falls and separates, and improve cleaning efficiency.

Benefits of technology

It realizes effective cleaning of debris on the filter cartridge, reduces the labor intensity of cleaning personnel, improves the efficiency of municipal drainage, and ensures the long-term effectiveness of sewage treatment.

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Abstract

The invention discloses a municipal drainage treatment method, and belongs to the technical field of water treatment. The municipal drainage treatment method comprises the following steps: S1, inputting a water body needing to be discharged into a drainage structure; s2, carrying out solid-liquid separation work on the discharged water body by using a filter screen cylinder through a drainage mechanism; s3, a drainage mechanism cleans impurities after water separation on the filter screen cylinder; s4, the drainage mechanism discharges the cleaned impurities to guarantee the drainage rate of the drainage mechanism; according to the device, impurities in sewage of municipal drainage can be quickly separated, the sewage and impurity separation operation can be effectively carried out for a long time, the labor intensity of cleaning personnel is reduced, and the municipal drainage efficiency is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to a municipal drainage treatment method. Background Art

[0002] Municipal engineering refers to various buildings, structures and equipment set up within the scope of urban area and town planning and construction, which provide paid or free public products and services to residents based on government responsibilities and obligations. In the prior art, the drainage treatment structure generally has a filter plate, which can preliminarily treat the sewage generated in life to reduce environmental pollution. However, after a long period of operation, a large amount of garbage will remain on the filter plate of the existing sewage treatment structure, affecting the normal use of the sewage treatment structure, requiring regular maintenance, and high labor intensity.

[0003] The Chinese invention with application number CN202320623385.1 in the prior art discloses a municipal water supply and drainage sewage treatment device, which can clean the garbage remaining inside the arc-shaped installation frame through the coordinated arrangement of an arc-shaped installation frame, a filter screen, an electric push rod, a movable plate, a machine base, a motor, a rotating shaft, a rotating drum, a scraper, a diversion shell and a collection box, and transport the garbage through the diversion shell to the inside of the collection box for collection, thereby avoiding the situation where the garbage affects the normal use of the sewage treatment device. However, during the specific use process, due to the unevenness of the filter screen, it is difficult for the scraper to effectively remove the debris such as leaves remaining in the arc-shaped installation frame, which affects the normal filtering function of the drainage structure. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a municipal drainage treatment method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A method for treating municipal wastewater comprises the following steps: S1: Input the water to be discharged into the drainage structure; S2: The drainage mechanism uses the filter cylinder to separate the solid and liquid in the discharged water; S3: The drainage mechanism cleans the impurities after the water on the filter cylinder is separated; S4: The drainage mechanism discharges the cleaned impurities to ensure the drainage rate of the drainage mechanism.

[0006] Preferably, the drainage mechanism includes a drainage pipe with a filter plate on the top, the end of the drainage pipe away from the filter plate is connected to a fixed cylinder, an outer cylinder body is fixedly provided on the outside of the fixed cylinder, the filter cylinder is rotatably arranged between the fixed cylinder and the outer cylinder body, a driving component for driving the filter cylinder to rotate is arranged on the top of the outer cylinder body, a cleaning component for cleaning debris on the filter cylinder is arranged on the driving component, a receiving seat for receiving debris dropped on the filter cylinder is arranged in the fixed cylinder, and a water guide pipe is arranged on the lower side of the outer cylinder body.

[0007] Preferably, the filter cylinder is fixed with partitions which are evenly distributed in a circle, and the partitions are movably abutted against the outer wall of the fixed cylinder, and an independent cavity is formed between two adjacent partitions. The upper and lower sides of the fixed cylinder are respectively provided with an upper opening and a lower opening which are connected to the filter cylinder, the material receiving seat is arranged at the upper opening, and the water pipe is arranged at the lower side of the lower opening.

[0008] Preferably, the drive assembly includes a reciprocating screw rotatably connected to the outer cylinder, a driving gear is provided at the end of the reciprocating screw, and a gear ring meshing with the driving gear is provided on the filter cylinder. The drive assembly also includes a drive shaft connected to the reciprocating screw and rotatably connected in the drain pipe, and the drive shaft is provided with toggle plates evenly distributed on the circumference on the shaft body in the drain pipe.

[0009] Preferably, a plurality of water guide grooves for guiding water flow are provided on the filter plate, and the water guide grooves are obliquely arranged on the filter plate.

[0010] Preferably, the cleaning assembly includes a sleeve threadedly connected to the reciprocating screw, a support plate fixedly provided on the outer side of the sleeve, a sliding rod slidably connected to the support plate, both ends of the sliding rod are respectively connected to an abutment block and a knocking block, an elastic element is sleeved on the outer side of the sliding rod, and both ends are respectively connected to the support plate and the abutment block, a protrusion movably abutted against the abutment block is fixedly provided on the outer cylinder body, and the knocking block movably abuts against the outer wall of the filter cylinder.

[0011] Preferably, the cleaning assembly also includes a working tube fixedly arranged on the lower side of the support plate, the sliding rod is placed in the working tube, a piston slidingly connected to the inner wall of the working tube is arranged on the outer side of the sliding rod, an air inlet valve and an air outlet valve are arranged on the working tube, the working tube is connected to a connecting hose through the air outlet valve, an end of the connecting hose away from the working tube is connected to a jet plate, and the jet plate is connected to the outer cylinder through a connecting plate.

[0012] Preferably, a scraper is slidably connected inside the material receiving seat, and the outer cylinder is fixedly provided with material receiving grooves at both ends of the material receiving seat.

[0013] Preferably, an ear plate is fixedly provided at the bottom of the sleeve, and a rotating rod is rotatably connected to the ear plate, a torsion spring is arranged between the rotating rod and the ear plate, and reels are arranged at both ends of the rotating rod, and a pull rope is wound around each reel, and the ends of the two pull ropes away from the reels are connected to the scraper, and the two pull ropes are located on both sides of the scraper, a movable gear is arranged on the rotating rod, and a rack rack meshing with the movable gear is arranged on the outer cylinder body.

[0014] Preferably, the rack frame includes a frame body fixedly connected to the outer cylinder body and an upper rack and a lower rack arranged on the frame body, and the upper rack and the lower rack are alternately meshed with the movable gear.

[0015] Compared with the prior art, the present invention provides a municipal drainage treatment method, which has the following beneficial effects: 1. The municipal drainage treatment method drives the filter drum to rotate through the driving component, so that the side of the filter drum that originally intercepted the debris is changed from the upper side to the lower side, and cooperates with the cleaning component to clean the flipped filter drum, so as to facilitate the debris intercepted on the filter drum to fall off, so that the filter drum after cleaning the debris is rotated to the separation position at the bottom again to separate the debris, thereby ensuring that the sewage and debris separation operation is carried out effectively for a long time, reducing the labor intensity of the cleaning personnel, and improving the municipal drainage efficiency.

[0016] 2. The municipal drainage treatment method drives the slide bar to move when the sleeve moves, so that the abutment block at the end of the slide bar intermittently abuts against the protrusion on the outer cylinder body, and then the movement of the slide bar drives the abutment block to intermittently knock against the rotating filter cylinder, so that the debris attached to the filter cylinder falls off, thereby improving the cleaning effect of the debris on the filter cylinder, and as the abutment block moves along the axial direction of the reciprocating screw and the filter cylinder rotates, the abutment block can knock on different positions of the filter cylinder, thereby ensuring the debris removal effect of the filter cylinder and avoiding the filter cylinder from being damaged by being knocked at the same position all the time.

[0017] 3. The municipal drainage treatment method drives the movable gear to intermittently mesh with the upper and lower racks on the rack frame when the sleeve moves axially along the reciprocating screw rod, so that the two drums alternately reel in the pull rope, so that the scraper moves back and forth in the material receiving seat, and the scraper moves the debris received in the material receiving seat, so that the debris moves to the material receiving grooves at both ends of the material receiving seat, so as to facilitate the staff to clean and transport the debris later, without the need to stop and disassemble the outer cylinder for cleaning and transporting the debris, reducing the labor intensity of the cleaning staff and ensuring the municipal drainage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 The cross-sectional structure of the present invention is shown in FIG. Figure 1 ; Figure 4 The cross-sectional structure of the present invention is shown in FIG. Figure 2 ; Figure 5 It is a schematic diagram of the external structure of the reciprocating screw rod of the present invention; Figure 6 is a schematic diagram of the external structure of the slide bar of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the fixing tube of the present invention.

[0019] In the figure: 1, drainage pipe; 101, filter plate; 1011, water guide groove; 2, fixed cylinder; 201, upper opening; 202, lower opening; 3, outer cylinder; 4, filter cylinder; 401, partition; 402, gear ring; 5, material receiving seat; 6, water guide pipe; 7, reciprocating screw; 701, driving gear; 702, sleeve; 8, driving shaft; 801, toggle plate; 9, support plate; 901, slide rod; 902 , abutment block; 903, knocking block; 904, elastic element; 10, protrusion; 11, working tube; 111, piston; 112, connecting hose; 113, jet plate; 12, scraper; 13, material receiving trough; 14, ear plate; 141, rotating rod; 142, reel; 143, pull rope; 144, movable gear; 15, rack frame; 151, frame body; 152, upper rack; 153, lower rack. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components; for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example: Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a municipal drainage treatment method, comprising the following steps: S1: Input the water to be discharged into the drainage structure; S2: The drainage mechanism uses the filter cylinder 4 to separate the solid and liquid of the discharged water; S3: The drainage mechanism cleans the impurities separated from the water on the filter cylinder 4; S4: The drainage mechanism discharges the cleaned impurities to ensure the drainage rate of the drainage mechanism.

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As a preferred technical solution of the present invention, the drainage mechanism includes a drainage pipe 1 with a filter plate 101 on the top, the end of the drainage pipe 1 away from the filter plate 101 is connected to a fixed cylinder 2, an outer cylinder body 3 is fixedly provided on the outside of the fixed cylinder 2, the filter cylinder 4 is rotatably arranged between the fixed cylinder 2 and the outer cylinder body 3, a driving component for driving the filter cylinder 4 to rotate is arranged on the top of the outer cylinder body 3, a cleaning component for cleaning debris on the filter cylinder 4 is arranged on the driving component, a receiving seat 5 for receiving debris dropped from the filter cylinder 4 is arranged in the fixed cylinder 2, and a water guide pipe 6 is arranged on the lower side of the outer cylinder body 3.

[0025] Furthermore, the filter cylinder 4 is fixed with partitions 401 evenly distributed in a circumference, and the partitions 401 are movably abutted against the outer wall of the fixed cylinder 2, and an independent cavity is formed between two adjacent partitions 401. The upper and lower sides of the fixed cylinder 2 are respectively provided with an upper opening 201 and a lower opening 202 connected to the filter cylinder 4, the material receiving seat 5 is arranged at the upper opening 201, and the water pipe 6 is arranged on the lower side of the lower opening 202.

[0026] The filter cylinder 4 is a kind of filter element, and the filter cylinder 4 of the embodiment of the present invention is the filter element of the present invention.

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As a preferred technical solution of the present invention, the driving assembly includes a reciprocating screw 7 rotatably connected to the outer cylinder 3, a driving gear 701 is provided at the end of the reciprocating screw 7, and a gear ring 402 meshingly connected to the driving gear 701 is provided on the filter cylinder 4. The driving assembly also includes a driving shaft 8 connected to the reciprocating screw 7 and rotatably connected to the drain pipe 1, and the driving shaft 8 is provided with toggle plates 801 evenly distributed on the circumference on the shaft body of the drain pipe 1.

[0028] Furthermore, a plurality of water guide grooves 1011 for guiding water flow are provided on the filter plate 101 , and the water guide grooves 1011 are obliquely arranged on the filter plate 101 .

[0029] Specifically, water passes through the filter plate 101 and enters the drain pipe 1. The water is guided by the water guide groove 1011 to impact the toggle plate 801 on the side of the drive shaft 8, so that the toggle plate 801 drives the drive shaft 8 to rotate. When the drive shaft 8 rotates, it drives the reciprocating screw 7 to rotate. The driving gear 701 at the end of the reciprocating screw 7 meshes with the gear ring 402 for transmission. When the gear ring 402 rotates, it drives the filter cylinder 4 to rotate relative to the fixed cylinder 2 and the outer cylinder 3, so that the side of the inner wall of the filter cylinder 4 that originally intercepted debris is changed from the upper side to the lower side, and the cleaning component is cooperated to clean the flipped filter cylinder 4, so that the debris intercepted on the filter cylinder 4 falls off, thereby ensuring the debris cleaning effect on the filter cylinder 4; it should be noted that a driving motor is arranged on the drain pipe 1, which is used to drive the driving shaft 8 and the reciprocating screw 7 to rotate when the water volume is insufficient to drive the drive shaft 8 to rotate. The driving motor is a prior art and is not described in detail here.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As a preferred technical solution of the present invention, the cleaning component includes a sleeve 702 threadedly connected to the reciprocating screw 7, a support plate 9 is fixedly provided on the outer side of the sleeve 702, a slide bar 901 is slidably connected to the support plate 9, and the two ends of the slide bar 901 are respectively connected to abutment blocks 902 and knocking blocks 903, an elastic element 904 is sleeved on the outer side of the slide bar 901, and the two ends are respectively connected to the support plate 9 and the abutment block 902, a protrusion 10 that movably abuts against the abutment block 902 is fixedly provided on the outer cylinder 3, and the knocking block 903 movably abuts against the outer wall of the filter cylinder 4.

[0031] Specifically, when the reciprocating screw 7 rotates, the sleeve 702 reciprocates along the axial direction of the reciprocating screw 7. When the sleeve 702 moves, it drives the slide bar 901 to move, so that the abutment block 902 at the end of the slide bar 901 intermittently moves against the protrusion 10 on the outer cylinder 3, and then when the slide bar 901 moves, it drives the abutment block 902 to intermittently knock with the rotating filter cylinder 4, so that the debris attached to the filter cylinder 4 falls off, thereby improving the cleaning effect of the debris on the filter cylinder 4, and as the abutment block 902 moves along the axial direction of the reciprocating screw 7 and the filter cylinder 4 rotates, the abutment block 902 can knock on different positions of the filter cylinder 4, which ensures the debris removal effect of the filter cylinder 4 while avoiding the same position of the filter cylinder 4 being always knocked and damaged.

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As a preferred technical solution of the present invention, the cleaning component also includes a working tube 11 fixedly arranged on the lower side of the support plate 9, the sliding rod 901 is placed in the working tube 11, and a piston 111 is provided on the outer side of the sliding rod 901 and is slidably connected to the inner wall of the working tube 11. The working tube 11 is provided with an air inlet valve and an air outlet valve. The working tube 11 is connected to a connecting hose 112 through the air outlet valve. The end of the connecting hose 112 away from the working tube 11 is connected to an injection plate 113, and the injection plate 113 is connected to the outer cylinder 3 through a connecting plate.

[0033] Specifically, when the slide bar 901 reciprocates up and down relative to the support plate 9, the piston 111 on the slide bar 901 reciprocates up and down in the working tube 11, so that the working tube 11 is intermittently evacuated and exhausted. When the working tube 11 is exhausted, the gas is introduced into the jet plate 113 through the connecting hose 112. The jet plate 113 rotates the airflow toward the upper part of the filter cylinder 4 to blow, thereby improving the removal effect of impurities on the filter cylinder 4. After the impurities fall from the filter cylinder 4, they enter the material receiving seat 5 through the upper opening 201.

[0034] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As a preferred technical solution of the present invention, a scraper 12 is slidably connected inside the material receiving seat 5, and the outer cylinder 3 is fixedly provided with material receiving grooves 13 at both ends of the material receiving seat 5.

[0035] Furthermore, an ear plate 14 is fixedly provided at the bottom of the sleeve 702, and a rotating rod 141 is rotatably connected to the ear plate 14, a torsion spring is provided between the rotating rod 141 and the ear plate 14, and reels 142 are provided at both ends of the rotating rod 141, and a pull rope 143 is wound around each reel 142, and the ends of the two pull ropes 143 away from the reels 142 are connected to the scraper 12, and the two pull ropes 143 are located on both sides of the scraper 12, a movable gear 144 is provided on the rotating rod 141, and a rack rack 15 meshing with the movable gear 144 is provided on the outer cylinder 3.

[0036] Furthermore, the rack frame 15 includes a frame body 151 fixedly connected to the outer cylinder body 3 , and an upper rack 152 and a lower rack 153 arranged on the frame body 151 . The upper rack 152 and the lower rack 153 are alternately meshed with the movable gear 144 .

[0037] Specifically, when the sleeve 702 moves axially along the reciprocating screw rod 7, it drives the movable gear 144 to intermittently mesh with the upper rack 152 and the lower rack 153 on the rack frame 15, so that the two reels 142 alternately reel in the pull rope 143, so that the scraper 12 moves back and forth in the material receiving seat 5, and the scraper 12 moves the debris received in the material receiving seat 5, so that the debris moves to the material receiving groove 13 at both ends of the material receiving seat 5, thereby facilitating the staff to clean and transport the debris later, without the need to stop and disassemble the outer cylinder 3 and the fixed cylinder 2 for cleaning and transporting the debris, reducing the labor intensity of the cleaning personnel and ensuring the municipal drainage efficiency.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A municipal drainage treatment method, characterized in that: The following steps are involved: S1: Input the water to be discharged into the drainage structure; S2: The drainage mechanism uses the filter cylinder (4) to separate the solid and liquid in the discharged water; S3: The drainage mechanism cleans the impurities separated from the water on the filter cylinder (4); S4: The drainage mechanism discharges the cleaned impurities to ensure the drainage rate of the drainage mechanism.

2. A municipal drainage treatment method according to claim 1, characterized in that: The drainage mechanism comprises a drainage pipe (1) with a filter plate (101) arranged on the top, the end of the drainage pipe (1) away from the filter plate (101) being connected to a fixed cylinder (2), an outer cylinder body (3) being fixedly arranged outside the fixed cylinder (2), the filter cylinder (4) being rotatably arranged between the fixed cylinder (2) and the outer cylinder body (3), a driving component for driving the filter cylinder (4) to rotate being arranged on the top of the outer cylinder body (3), a cleaning component for cleaning debris on the filter cylinder (4) being arranged on the driving component, a receiving seat (5) for receiving debris dropped from the filter cylinder (4) being arranged inside the fixed cylinder (2), and a water guide pipe (6) being arranged on the lower side of the outer cylinder body (3).

3. A municipal drainage treatment method according to claim 2, characterized in that: The filter cylinder (4) is provided with partitions (401) evenly distributed in a circumference, the partitions (401) are movably abutted against the outer wall of the fixed cylinder (2), and an independent cavity is formed between two adjacent partitions (401). The upper and lower sides of the fixed cylinder (2) are respectively provided with an upper opening (201) and a lower opening (202) connected to the filter cylinder (4), the material receiving seat (5) is arranged at the upper opening (201), and the water guide pipe (6) is arranged at the lower side of the lower opening (202).

4. A municipal drainage treatment method according to claim 3, characterized in that: The drive assembly comprises a reciprocating screw (7) rotatably connected to the outer cylinder (3), a driving gear (701) being provided at the end of the reciprocating screw (7), a gear ring (402) being meshed with the driving gear (701) being provided on the filter cylinder (4), and the drive assembly further comprises a driving shaft (8) connected to the reciprocating screw (7) and rotatably connected in the drainage pipe (1), the driving shaft (8) being provided with circumferentially evenly distributed toggle plates (801) on the shaft body in the drainage pipe (1).

5. A municipal wastewater treatment method according to claim 4, characterized in that: The filter plate (101) is provided with a plurality of water guide grooves (1011) for guiding water flow, and the water guide grooves (1011) are arranged obliquely on the filter plate (101).

6. A municipal wastewater treatment method according to claim 5, characterized in that: The cleaning assembly comprises a sleeve (702) threadedly connected to the reciprocating screw (7); a support plate (9) is fixedly provided on the outer side of the sleeve (702); a slide rod (901) is slidably connected to the support plate (9); two ends of the slide rod (901) are respectively connected to an abutment block (902) and a knocking block (903); an elastic element (904) is sleeved on the outer side of the slide rod (901); two ends of the elastic element (904) are respectively connected to the support plate (9) and the abutment block (902); a protrusion (10) movably abutting against the abutment block (902) is fixedly provided on the outer cylinder (3); and the knocking block (903) movably abuts against the outer wall of the filter cylinder (4).

7. A municipal wastewater treatment method according to claim 6, characterized in that: The cleaning assembly further comprises a working tube (11) fixedly arranged on the lower side of the support plate (9), the sliding rod (901) being disposed in the working tube (11), a piston (111) being provided on the outer side of the sliding rod (901) and being slidably connected to the inner wall of the working tube (11), an air inlet valve and an air outlet valve being provided on the working tube (11), the working tube (11) being connected to a connecting hose (112) via the air outlet valve, an end of the connecting hose (112) being remote from the working tube (11) being connected to an air jet plate (113), and the air jet plate (113) being connected to the outer cylinder (3) via a connecting plate.

8. A municipal wastewater treatment method according to claim 7, characterized in that: A scraper (12) is slidably connected inside the material receiving seat (5), and material receiving grooves (13) are fixedly provided at both ends of the material receiving seat (5) on the outer cylinder (3).

9. A municipal wastewater treatment method according to claim 8, characterized in that: An ear plate (14) is fixedly provided at the bottom of the sleeve (702), and a rotating rod (141) is rotatably connected to the ear plate (14), and a torsion spring is provided between the rotating rod (141) and the ear plate (14). Reels (142) are provided at both ends of the rotating rod (141), and a pull rope (143) is wound around each of the reels (142). The ends of the two pull ropes (143) away from the reels (142) are connected to the scraper (12), and the two pull ropes (143) are located on both sides of the scraper (12). A movable gear (144) is provided on the rotating rod (141), and a rack (15) meshing with the movable gear (144) is provided on the outer cylinder (3).

10. A municipal wastewater treatment method according to claim 9, characterized in that: The rack frame (15) comprises a frame body (151) fixedly connected to the outer cylinder body (3), and an upper rack (152) and a lower rack (153) arranged on the frame body (151); the upper rack (152) and the lower rack (153) are alternately meshed with the movable gear (144).

Citation Information

Patent Citations

  • Municipal water supply and drainage sewage treatment device

    CN219502068U