Flocculation sedimentation tank for sewage treatment

Abstract

The utility model provides a flocculation sedimentation tank for sewage treatment, which belongs to the technical field of sedimentation tanks and comprises a sewage treatment sleeve, the top end of the sewage treatment sleeve is fixedly connected with a first connecting sleeve, and the inner walls of two sides of the first connecting sleeve are rotatably connected with reciprocating screw rods. One side end of the first connecting sleeve is fixedly connected with a second motor, when a convex wheel rotates, a semicircular sleeve is periodically jacked up, the semicircular sleeve slides up and down on the inner wall of the sewage treatment sleeve by virtue of elastic supporting force provided by six springs, and the action is beneficial to loosening and removing blocked impurities adhered in screen meshes of a filter screen; according to the sewage treatment device, the blockage phenomenon is effectively prevented, and meanwhile, the impurity separation effect is enhanced, so that the smooth proceeding of the sewage treatment process is guaranteed, and convenience is provided for subsequent impurity treatment.

Description

Technical Field

[0001] The utility model belongs to the technical field of sedimentation tanks, and in particular relates to a flocculation sedimentation tank for sewage treatment. Background Art

[0002] As early as the beginning of the 20th century, people began to use physical and chemical methods to treat sewage, among which flocculation sedimentation technology is one of them. Traditional sedimentation tanks usually rely on gravity to allow particles in sewage to sink naturally. However, with increasingly stringent environmental protection requirements and technological advances, the method of relying solely on gravity sedimentation can no longer meet the needs of efficient sewage treatment.

[0003] The authorization publication number "CN215310778U" records a flocculation sedimentation tank for sewage treatment, which solves the current problems of poor sewage impurity treatment effect and low sewage treatment efficiency. The device includes a sedimentation tank body, the upper end of the sedimentation tank body is connected to a shell, the top of the inner wall of the shell is connected to a motor, the output end of the motor is connected to a first rotating rod, the surface of the first rotating rod is connected to a first gear, one side of the first gear is meshed with a second gear, the axis of the second gear is connected to a second rotating rod, the surfaces of the first rotating rod and the second rotating rod are both connected to stirring rods, the upper end of the shell is connected to a frame, the two sides of the inner wall of the frame are connected to a first filter plate, and the two sides of the inner wall of the frame and the second filter plate are connected to the second filter plate; the utility model is convenient for stirring sewage, improves the sewage treatment effect, and is convenient for discharging sewage, thereby improving the working efficiency of sewage treatment.

[0004] The above patent facilitates the stirring of sewage, improves the sewage treatment effect, and facilitates the discharge of sewage, thereby improving the working efficiency of sewage treatment. However, the above patent has certain shortcomings when used. It is impossible to realize frequent automatic cleaning of the sewage filter, which easily leads to clogging of the filter due to accumulation of dirt. In addition, the device fails to effectively separate the impurities filtered out by the filter in real time, which makes the staff face great difficulties in the subsequent treatment of these impurities and the operation is extremely inconvenient. Utility Model Content

[0005] The purpose of the utility model is to provide a flocculation sedimentation tank for sewage treatment, aiming to solve the problem in the prior art that the sewage filter cannot be frequently and automatically cleaned, which easily leads to clogging of the filter due to accumulation of dirt. In addition, the device fails to effectively separate the impurities filtered out by the filter in real time, which makes it difficult for the staff to deal with these impurities in the subsequent processing and the operation is extremely inconvenient.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A flocculation sedimentation tank for sewage treatment, comprising:

[0008] A sewage treatment sleeve, wherein the top of the sewage treatment sleeve is fixedly connected to a first connecting sleeve, the inner walls on both sides of the first connecting sleeve are rotatably connected to a reciprocating screw rod, one side end of the first connecting sleeve is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to one end of the reciprocating screw rod;

[0009] A filter screen, wherein the filter screen is fixedly connected to the inner walls on both sides of the first connecting sleeve;

[0010] A first motor, wherein the first motor is fixedly connected to one side end of the sewage treatment sleeve;

[0011] Spiral stirring blades, the spiral stirring blades are rotatably connected to the inner walls of both sides of the sewage treatment sleeve; and

[0012] A rotating rod, the rotating rod being rotatably connected to the inner walls of both sides of the sewage treatment sleeve;

[0013] A cam wheel, the cam wheel being fixedly connected to the circumferential surface of the rotating rod;

[0014] The cleaning mechanism is arranged on the upper side of the filter screen and is used to clean the impurities in the filter screen.

[0015] As a preferred solution of the utility model, the cleaning mechanism includes:

[0016] A connecting frame, the connecting frame being slidably connected to the upper side of the filter screen;

[0017] A connecting block, the connecting block is fixedly connected to the top end of the connecting frame, and the connecting block is sleeved on the outer surface of the reciprocating screw rod;

[0018] A nut, the nut being threadedly connected to the circumferential surface of the reciprocating screw rod, and the nut being fixedly connected in the connecting block;

[0019] A cleaning wheel brush, wherein two cleaning wheel brushes are provided, and the two cleaning wheel brushes are rotatably connected to the inner walls on both sides of the connecting frame respectively;

[0020] Arc rings, two of which are provided, and the two arc rings are respectively fixedly connected to the inner walls of both sides of the sewage treatment sleeve;

[0021] A discharge port, the discharge port being opened at one side end of the sewage treatment sleeve;

[0022] A semicircular sleeve, wherein the semicircular sleeve is slidably connected to the inner walls of both sides of the sewage treatment sleeve;

[0023] Springs, wherein six springs are provided, one end of each of the six springs is fixedly connected to the outer surface of the semicircular sleeve, and the other ends of the six springs are respectively fixedly connected to the circumferential inner walls of the two arc-shaped rings;

[0024] Gears, wherein two gears are provided, and the two gears are respectively fixedly connected to the circumferential surfaces of the spiral stirring blade and the cam wheel;

[0025] A toothed belt is meshedly connected to the circumferential surfaces of the two gears.

[0026] As a preferred solution of the utility model, the front and rear ends of the sewage treatment sleeve are respectively fixedly connected with an intelligent controller and a connecting valve, and one side end of the sewage treatment sleeve is fixedly connected with a temperature sensor.

[0027] As a preferred solution of the utility model, one side end of the sewage treatment sleeve is fixedly connected with a threaded ring, the circumferential surface of the threaded ring is threadedly connected with a second connecting sleeve, and a plastic pad is fixedly connected in the discharge port.

[0028] As a preferred solution of the utility model, two plastic rings are fixedly connected to the outer surface of the sewage treatment sleeve, and the front and rear ends of the sewage treatment sleeve are fixedly connected to a first connecting seat.

[0029] As a preferred solution of the utility model, the front end of the sewage treatment sleeve is fixedly connected to the intelligent controller, and the top end of the first connecting sleeve is fixedly connected to the second connecting seat.

[0030] Compared with the prior art, the beneficial effects of the utility model are:

[0031] 1. In this scheme, during the process of sewage flocculation and sedimentation treatment, the sewage is first introduced into the sewage treatment sleeve through the first connecting sleeve. In the first connecting sleeve, the preset filter screen will perform preliminary filtering on the sewage, and the large particles of impurities in the sewage will be trapped on the upper side of the filter screen. The operator starts the second motor through the intelligent controller, and the output shaft of the second motor drives the reciprocating screw to rotate. As the reciprocating screw rotates, the nut matched with its thread moves synchronously. The movement of the nut is transmitted to the connecting frame through the connecting block, thereby driving the two built-in cleaning wheel brushes to reciprocate horizontally along the surface of the filter screen. The circumference of the cleaning wheel brush can be equipped with a brush or other cleaning materials to effectively remove the blockage in the mesh hole of the filter screen during rotation. In addition, the cleaning wheel brush can also be equipped with magnetic materials as needed to absorb the magnetic organic impurities contained in the sewage. The sewage that has been preliminarily filtered continues to fall into the sewage treatment sleeve At the bottom of the cylinder, at this time, the sewage will first be filtered twice through the slidingly connected semicircular sleeve. Subsequently, the operator uses the intelligent controller to start the first motor again, and the motor drives the spiral stirring blade to rotate. During the rotation of the spiral stirring blade, it can not only push the fine impurities in the semicircular sleeve to the second connecting sleeve for centralized collection, but also the gear on the stirring blade drives another gear through the toothed belt, thereby driving the rotating rod and the cam wheel fixed thereon to rotate. When the cam wheel rotates, it will periodically lift the semicircular sleeve, and with the help of the elastic support force provided by six springs, the semicircular sleeve slides up and down on the inner wall of the sewage treatment sleeve. This action helps to loosen and remove the blocked impurities adhering to the mesh holes of the filter screen, effectively preventing the occurrence of blockage, and at the same time enhancing the separation effect of impurities. In this way, it not only ensures the smooth progress of the sewage treatment process, but also provides convenience for the subsequent treatment of impurities.

[0032] 2. In this solution, the threaded ring is fixedly installed at one end of the sewage treatment sleeve. Its design feature is that it adopts a standard threaded structure, which is designed to be flexibly assembled and disassembled with the second connecting sleeve through a threaded connection. This design greatly improves the operating convenience and subsequent maintenance efficiency of the discharge port. When the second connecting sleeve is tightly engaged with the threaded ring through the thread, on the one hand, the structural stability around the discharge port is enhanced, and on the other hand, it also provides the possibility of connecting other auxiliary equipment. For example, the second connecting sleeve may be equipped with a control valve for adjusting the discharge rate, or a device for secondary filtration. Through these devices, the discharge speed and filtration degree of impurities after sewage treatment can be more accurately controlled. In actual operation, the sewage impurities that have been preliminarily treated will enter the second connecting sleeve through the discharge port, realizing orderly and controllable discharge and collection, thereby ensuring the continuity and effectiveness of the sewage treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 It is a three-dimensional diagram of the utility model;

[0035] Figure 2 It is a side perspective stereogram of the utility model from a first perspective;

[0036] Figure 3 This is a cutaway stereogram of the utility model from a first viewing angle;

[0037] Figure 4 For the utility model Figure 3 A local enlarged view of point A;

[0038] Figure 5 This is a sectional stereoscopic view from a second viewing angle of the present invention.

[0039] In the figure: 1. sewage treatment sleeve; 2. intelligent controller; 3. first connecting seat; 4. plastic ring; 5. first motor; 6. toothed belt; 7. gear; 8. first connecting sleeve; 9. second connecting seat; 10. second motor; 11. second connecting sleeve; 12. temperature sensor; 13. connecting valve; 14. threaded ring; 15. rotating rod; 16. cam wheel; 17. arc ring; 18. spring; 19. spiral stirring blade; 20. discharge port; 21. semicircular sleeve; 22. filter screen (22); 23. connecting frame; 24. cleaning wheel brush; 25. reciprocating screw rod; 26. connecting block; 27. nut. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Example 1

[0042] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0043] A flocculation sedimentation tank for sewage treatment, comprising:

[0044] A sewage treatment sleeve 1, the top of which is fixedly connected to a first connecting sleeve 8, the inner walls of both sides of the first connecting sleeve 8 are rotatably connected to a reciprocating screw rod 25, one side end of the first connecting sleeve 8 is fixedly connected to a second motor 10, and the output end of the second motor 10 is fixedly connected to one end of the reciprocating screw rod 25;

[0045] A filter screen 22, the filter screen 22 is fixedly connected to the inner walls of both sides of the first connecting sleeve 8;

[0046] A first motor 5, the first motor 5 is fixedly connected to one side end of the sewage treatment sleeve 1;

[0047] Spiral stirring blades 19, which are rotatably connected to the inner walls of the sewage treatment sleeve 1 on both sides; and

[0048] A rotating rod 15, the rotating rod 15 is rotatably connected to the inner walls of both sides of the sewage treatment sleeve 1;

[0049] A cam wheel 16, which is fixedly connected to the circumferential surface of the rotating rod 15;

[0050] The cleaning mechanism is disposed on the upper side of the filter screen 22 and is used to clean the impurities in the filter screen 22 .

[0051] In a specific embodiment of the utility model, a first connecting sleeve 8 is fixed to the top of the sewage treatment sleeve 1, and a reciprocating screw 25 is rotated on the inner walls on both sides of the first connecting sleeve 8 through a rotating structure such as a bearing, and a second motor 10 is fixed to one end of the first connecting sleeve 8. The output end of the second motor 10 is fixed to one end of the reciprocating screw 25 to drive the reciprocating screw 25 to rotate. The filter screen 22 is firmly fixed to the inner walls on both sides of the first connecting sleeve 8 to intercept solid particles in the sewage. The spiral stirring blades 19 rotate on the inner walls on both sides of the sewage treatment sleeve 1 through an axis, and are driven by the first motor 5 to perform stirring operations to promote flocculation reaction. The cam wheel 16 is fixed to the rotating rod 15. The circumferential surface cooperates with the cleaning mechanism above the filter 22. The upper side of the filter 22 is linked with the cam wheel 16 to automatically clean the impurities in the filter 22 during operation to avoid clogging of the filter 22 and maintain the filtering efficiency. The second motor 10 and the first motor 5 are electrically connected to the intelligent controller 2, and the intelligent controller 2 can control the start of the second motor 10 and the first motor 5. It should be noted that the specific type of the second motor 10, the first motor 5 and the intelligent controller 2 to be used is selected by relevant technical personnel familiar with the field, and the above second motor 10, the first motor 5 and the intelligent controller 2 are all prior art, and this solution will not be repeated.

[0052] For details, please refer to Figure 1-Figure 5 , cleanup agencies include:

[0053] A connecting frame 23, the connecting frame 23 is slidably connected to the upper side of the filter screen 22;

[0054] A connecting block 26, which is fixedly connected to the top of the connecting frame 23 and sleeved on the outer surface of the reciprocating screw rod 25;

[0055] A nut 27, the nut 27 is threadedly connected to the circumferential surface of the reciprocating screw rod 25, and the nut 27 is fixedly connected in the connecting block 26;

[0056] A cleaning wheel brush 24, wherein two cleaning wheel brushes 24 are provided, and the two cleaning wheel brushes 24 are rotatably connected to the inner walls of both sides of the connecting frame 23;

[0057] Arc ring 17, two arc rings 17 are provided, and the two arc rings 17 are respectively fixedly connected to the inner walls of the sewage treatment sleeve 1 on both sides;

[0058] A discharge port 20, which is opened at one side end of the sewage treatment sleeve 1;

[0059] A semicircular sleeve 21, the semicircular sleeve 21 is slidably connected to the inner walls of both sides of the sewage treatment sleeve 1;

[0060] Spring 18, six springs 18 are provided, one end of each of the six springs 18 is fixedly connected to the outer surface of the semicircular sleeve 21, and the other ends of the six springs 18 are respectively fixedly connected to the circumferential inner walls of the two arc-shaped rings 17;

[0061] Gear 7, two gears 7 are provided, and the two gears 7 are fixedly connected to the circumferential surfaces of the spiral stirring blade 19 and the cam wheel 16 respectively;

[0062] The toothed belt 6 is connected to the circumferential surfaces of the two gears 7 in a transmission meshing manner.

[0063] In this embodiment: the connecting frame 23 is designed to slide on the upper side of the filter screen 22, and can slide horizontally above the filter screen 22 to complete the cleaning task. The connecting block 26 is fixed to the top of the connecting frame 23 and is sleeved on the outer surface of the reciprocating screw 25. As the reciprocating screw 25 rotates, it realizes horizontal reciprocating motion. The nut 27 is threaded on the circumferential surface of the reciprocating screw 25 and is fixed inside the connecting block 26. When the reciprocating screw 25 rotates, the connecting frame 23 is driven to perform linear reciprocating motion through the cooperation of the nut 27 and the screw, so as to scrape off the impurities on the filter screen 22. The two cleaning wheel brushes 24 rotate on the inner walls on both sides of the connecting frame 23 respectively, which are used for the stable sliding of the connecting frame 23 and may cooperate with other components. The two arc rings 17 are fixed on the inner walls on both sides of the sewage treatment sleeve 1. The sliding assembly provides guidance and support. The discharge port 20 is opened at one side end of the sewage treatment sleeve 1 to facilitate the discharge of cleaned impurities. The semicircular sleeve 21 slides on the inner walls of the sewage treatment sleeve 1 on both sides. It and the spring 18 together constitute a buffer or reset mechanism. Six springs 18 are respectively between the semicircular sleeve 21 and the arc ring 17 to provide elastic force so that the cleaning mechanism can automatically return to the initial position after action. The gear 7 and the toothed belt 6, the gear 7 is provided with two, which are respectively fixed on the circumferential surface of the spiral stirring blade 19 and the cam wheel 16. The toothed belt 6 transmits the power of the two to realize linkage operation, that is, the cleaning mechanism can be driven to work while stirring. The cleaning mechanism can effectively clean the filter screen 22 regularly during the sewage treatment process, which not only ensures the sewage treatment efficiency, but also reduces the frequency and difficulty of manual cleaning.

[0064] For details, please refer to Figure 1-Figure 3 The front and rear ends of the sewage treatment sleeve 1 are respectively fixedly connected with an intelligent controller 2 and a connecting valve 13, and one side end of the sewage treatment sleeve 1 is fixedly connected with a temperature sensor 12.

[0065] In this embodiment: the intelligent controller 2 is fixed at the front end of the sewage treatment sleeve 1. The intelligent controller 2 is the core control unit of the entire sewage treatment system. It can pre-set and monitor various parameters of sewage treatment in real time, such as stirring speed, water quality indicators, cleaning cycle, etc., and make automatic adjustments according to actual conditions to ensure that the sewage treatment process runs efficiently and stably. The connecting valve 13 is fixed at the rear end of the sewage treatment sleeve 1. As a control element of the inlet and outlet, the connecting valve 13 can control the inflow of sewage or the outflow of purified clean water, thereby achieving precise control of the sewage treatment process and facilitating equipment inspection or maintenance. The temperature sensor 12 is fixed at one side end of the sewage treatment sleeve 1. The temperature sensor 12 is used to monitor the water temperature changes in the sewage treatment process in real time. Because temperature has an important influence on sewage treatment efficiency and microbial activity, the intelligent controller 2 will make adaptive adjustments to the sewage treatment process conditions based on the data information fed back by the temperature sensor 12 to ensure that the sewage treatment effect is optimized under suitable temperature conditions.

[0066] For details, please refer to Figure 2 A threaded ring 14 is fixedly connected to one side end of the sewage treatment sleeve 1, a second connecting sleeve 11 is threadedly connected to the circumferential surface of the threaded ring 14, and a plastic pad is fixedly connected inside the discharge port 20.

[0067] In this embodiment: the threaded ring 14 is fixed to one side end of the sewage treatment sleeve 1. The threaded ring 14 is designed with a standard threaded structure. Its main function is to assemble and disassemble with the second connecting sleeve 11 by means of threads, so as to realize convenient operation and maintenance of the discharge port 20. The second connecting sleeve 11 is tightly connected to the threaded ring 14 by means of threads. The design of the second connecting sleeve 11 may be to enhance the structural stability of the discharge port 20 area, or to connect other auxiliary equipment, such as a control valve for adjusting the discharge rate or equipment for secondary filtration. The discharge port 20 is used to discharge impurities so that the impurities can be provided through the discharge port 20 to enter the second connecting sleeve 11.

[0068] For details, please refer to Figure 1-Figure 5 Two plastic rings 4 are fixedly connected to the outer surface of the sewage treatment sleeve 1, and the front and rear ends of the sewage treatment sleeve 1 are fixedly connected to the first connecting seat 3.

[0069] In this embodiment: the main function of the two plastic rings 4 is to provide sealing performance to prevent sewage leakage caused by the pressure generated during the sewage treatment process. The first connecting seat 3 is used to connect firmly with other equipment or pipelines to ensure that the sewage can smoothly enter the sewage treatment sleeve 1 for treatment.

[0070] For details, please refer to Figure 1-Figure 3 The front end of the sewage treatment sleeve 1 is fixedly connected to the intelligent controller 2, and the top end of the first connecting sleeve 8 is fixedly connected to the second connecting seat 9.

[0071] In this embodiment: the intelligent controller 2 is used to control the overall operation of the device, and the second connecting seat 9 is used to facilitate the connection and fixation between the first connecting sleeve 8 and the external pipeline.

[0072] The working principle and use process of the utility model are as follows: when sewage is subjected to flocculation and sedimentation treatment, the sewage will be provided with the first connecting sleeve 8 to enter the sewage treatment sleeve 1, and the filter screen 22 in the first connecting sleeve 8 will first filter the sewage, and the impurities in the sewage will be retained on the upper side of the filter screen 22, and then the personnel will use the intelligent controller 2 to start the second motor 10, and the output shaft of the second motor 10 will immediately drive the reciprocating screw 25 to rotate, and the reciprocating screw 25 will drive the nut 27 on the surface to move when rotating, and the nut 27 will drive the connecting block 26 to move when moving. When the connecting block 26 moves, it will drive the connecting frame 23 to move, and then the connecting frame 23 will drive the two cleaning wheel brushes 24 inside to move. The two cleaning wheel brushes 24 can be selected according to the needs of personnel. The circumferential surface of the cleaning wheel brush 24 is used to install the brush, so that the cleaning wheel brush 24 can clean the mesh holes of the filter screen 22 when it rotates. The outer surfaces of the two cleaning wheel brushes 24 can also be installed with magnetic materials, so that the two cleaning wheel brushes 24 can absorb organic matter contained in sewage impurities, and the sewage will fall into the bottom of the sewage treatment sleeve 1 through the semicircular sleeve 21. When the semicircular sleeve 21 is connected to the wall, the semicircular sleeve 21 will perform secondary filtration on the sewage, and then the personnel will use the intelligent controller 2 to start the first motor 5, and the output shaft of the first motor 5 will immediately drive the spiral stirring blade 19 to rotate, and the spiral stirring blade 19 will transfer the impurities in the semicircular sleeve 21 to the second connecting sleeve 11, so that the impurities can be collected in the second connecting sleeve 11, and the six springs 18 provide elastic supporting force, so that the elastic supporting force of the six springs 18 can drive the semicircular sleeve 21 to fit the top inner wall of the sewage treatment sleeve 1, when the spiral stirring blade 19 When rotating, it will drive one of the gears 7 on the surface to rotate, and then one of the gears 7 will drive the toothed belt 6 on the circumferential surface to rotate, and then the toothed belt 6 will drive another gear 7 to rotate, so that the other gear 7 drives the rotating rod 15 to rotate, so that the rotating rod 15 can drive the cam wheel 16 to lift the semicircular sleeve 21, so that the semicircular sleeve 21 slides on the inner walls on both sides of the sewage treatment sleeve 1, and the impurities blocked in the sieve holes are shaken open, which can prevent the sewage from being blocked, and at the same time can effectively separate the impurities, making it more convenient for subsequent personnel to handle the impurities.

[0073] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flocculation sedimentation tank for sewage treatment, characterized in that: include: A sewage treatment sleeve (1), wherein the top end of the sewage treatment sleeve (1) is fixedly connected to a first connecting sleeve (8), the inner walls on both sides of the first connecting sleeve (8) are rotatably connected to a reciprocating screw rod (25), one side end of the first connecting sleeve (8) is fixedly connected to a second motor (10), and the output end of the second motor (10) is fixedly connected to one end of the reciprocating screw rod (25); A filter screen (22), wherein the filter screen (22) is fixedly connected to inner walls on both sides of the first connecting sleeve (8); A first motor (5), the first motor (5) being fixedly connected to one side end of the sewage treatment sleeve (1); Spiral stirring blades (19), the spiral stirring blades (19) being rotatably connected to the inner walls on both sides of the sewage treatment sleeve (1); as well as A rotating rod (15), wherein the rotating rod (15) is rotatably connected to the inner walls on both sides of the sewage treatment sleeve (1); A cam wheel (16), wherein the cam wheel (16) is fixedly connected to the circumferential surface of the rotating rod (15); A cleaning mechanism is arranged on the upper side of the filter screen (22), and is used to clean impurities in the filter screen (22).

2. A flocculation sedimentation tank for sewage treatment according to claim 1, characterized in that: The cleaning mechanism comprises: A connecting frame (23), wherein the connecting frame (23) is slidably connected to the upper side of the filter screen (22); A connecting block (26), wherein the connecting block (26) is fixedly connected to the top end of the connecting frame (23), and the connecting block (26) is sleeved on the outer surface of the reciprocating screw rod (25); A nut (27), wherein the nut (27) is threadedly connected to the circumferential surface of the reciprocating screw rod (25), and the nut (27) is fixedly connected to the connecting block (26); A cleaning wheel brush (24), wherein two cleaning wheel brushes (24) are provided, and the two cleaning wheel brushes (24) are rotatably connected to the inner walls on both sides of the connecting frame (23); An arc-shaped ring (17), wherein two arc-shaped rings (17) are provided, and the two arc-shaped rings (17) are respectively fixedly connected to the inner walls on both sides of the sewage treatment sleeve (1); A discharge port (20), wherein the discharge port (20) is provided at one side end of the sewage treatment sleeve (1); A semicircular sleeve (21), wherein the semicircular sleeve (21) is slidably connected to the inner walls on both sides of the sewage treatment sleeve (1); Springs (18), wherein six springs (18) are provided, one end of each of the six springs (18) is fixedly connected to the outer surface of the semicircular sleeve (21), and the other ends of the six springs (18) are respectively fixedly connected to the circumferential inner walls of the two arc-shaped rings (17); Gears (7), wherein two gears (7) are provided, and the two gears (7) are respectively fixedly connected to the circumferential surfaces of the spiral stirring blade (19) and the cam wheel (16); A toothed belt (6) is connected in a driving meshing manner to the circumferential surfaces of the two gears (7).

3. A flocculation sedimentation tank for sewage treatment according to claim 2, characterized in that: The front and rear ends of the sewage treatment sleeve (1) are respectively fixedly connected to an intelligent controller (2) and a connecting valve (13), and one side end of the sewage treatment sleeve (1) is fixedly connected to a temperature sensor (12).

4. A flocculation sedimentation tank for sewage treatment according to claim 3, characterized in that: A threaded ring (14) is fixedly connected to one side end of the sewage treatment sleeve (1), a second connecting sleeve (11) is threadedly connected to the circumferential surface of the threaded ring (14), and a plastic pad is fixedly connected inside the discharge port (20).

5. A flocculation sedimentation tank for sewage treatment according to claim 4, characterized in that: Two plastic rings (4) are fixedly connected to the outer surface of the sewage treatment sleeve (1), and the front and rear ends of the sewage treatment sleeve (1) are fixedly connected to a first connecting seat (3).

6. A flocculation sedimentation tank for sewage treatment according to claim 5, characterized in that: The front end of the sewage treatment sleeve (1) is fixedly connected to an intelligent controller (2), and the top end of the first connecting sleeve (8) is fixedly connected to a second connecting seat (9).

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