A wastewater treatment tower and treatment method

Abstract

The present invention provides a sewage treatment tower and a treatment method. The sewage is filtered out of impurities in the water by an impurity recovery mechanism and then flows into an impurity precipitation mechanism. After sludge is precipitated in the impurity precipitation mechanism, the separated clean water is purified and disinfected by a purification and disinfection mechanism and then discharged from a clean water discharge spiral pipe. The sludge treatment mechanism can clean and discharge the sludge in the impurity precipitation mechanism, thereby realizing the rapid discharge of filtered impurities without stopping the machine, being able to start and stop intelligently, being able to further precipitate and purify and automatically clean the sludge. The purification efficiency and purification quality are greatly improved, thereby solving the technical problems that the existing sewage treatment tower only filters the sewage through a filter disc, is unable to quickly discharge the filtered impurities without stopping the machine, is unable to start and stop intelligently, lacks the precipitation and purification function, and is unable to automatically clean the precipitated sludge, resulting in poor purification effect and low purification efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection, and in particular to a sewage treatment tower and a treatment method. Background Art

[0002] The sewage treatment tower structure is mainly composed of steel materials and is one of the main types of sewage treatment structures. Generally, the sewage treatment unit inside is designed according to the specific treatment method of sewage, so as to achieve the purpose of rapid sewage treatment. Sewage treatment is the process of purifying sewage to meet the water quality requirements for drainage to a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering, and is increasingly entering the daily lives of ordinary people.

[0003] As people pay more attention to environmental protection, the proportion of various types of sewage treatment is getting higher and higher. Sewage treatment towers are usually used in the sewage treatment process. Using sewage treatment towers to treat sewage can save space, and at the same time, water can be filtered from top to bottom under its own gravity to save energy; for example, the Chinese patent No. 2020205157293 discloses an environmentally friendly sewage treatment tower, which includes: a sewage treatment tower, the inner top of the sewage treatment tower is connected to a sewage treatment nozzle through a connecting pipe, and the sewage treatment nozzle is located on the axis of the sewage treatment tower, and also includes: a sewage filter disc; there are two sewage filter discs, and the two sewage filter discs are rotatably connected to the inner side of the sewage treatment tower. The bottom and top of the outer frame of the sewage filter disc are respectively covered with a first annular airbag gasket and a second annular airbag gasket, and the sewage filter disc is rotated and set in the sewage treatment tower. The sewage filter disc can be driven to rotate by a servo motor, so that the sewage filter disc can be flipped, which is convenient for reverse flushing of the sewage filter disc, and the accumulated solid impurities in the sewage filter disc can be automatically cleaned. The structure is simple, the operation is convenient, and the efficiency of sewage treatment is improved;

[0004] However, the above-mentioned existing sewage treatment tower only filters the sewage through the filter disk. It is unable to quickly discharge the filtered impurities without stopping the machine, and it is also unable to start and stop intelligently. At the same time, it lacks the sedimentation purification function, and it is also unable to automatically clean the precipitated sludge, resulting in poor purification effect and low purification efficiency. Therefore, we urgently need to invent a sewage treatment tower and treatment method that can quickly discharge the filtered impurities without stopping the machine, can start and stop intelligently, can further precipitate and purify, and automatically clean the sludge to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a sewage treatment tower and a treatment method, in which the sewage passes through an impurity recovery mechanism to filter out impurities in the water and then flows into an impurity precipitation mechanism, sludge is precipitated in the impurity precipitation mechanism, and then the separated clean water is purified and disinfected by a purification and disinfection mechanism and then discharged from a clean water discharge spiral pipe; the sludge treatment mechanism can clean and discharge the sludge in the impurity precipitation mechanism, thereby realizing the rapid discharge of filtered impurities without stopping the machine, and the sewage treatment tower can be started and stopped intelligently, and can further precipitate and purify and automatically clean the sludge, thereby greatly improving the purification efficiency and purification quality.

[0006] The technical solution used in the present invention is: a sewage treatment tower and treatment method, including: an impurity recovery mechanism, an impurity precipitation mechanism, a purification and disinfection mechanism, a sludge treatment mechanism, a support base and a control console;

[0007] The impurity precipitation mechanism is fixedly installed on the top of the support base; the upper part of the purification and disinfection mechanism is connected with the upper part of the impurity precipitation mechanism, and the lower part of the purification and disinfection mechanism is connected with the clean water discharge spiral pipe inside the support base; the sludge treatment mechanism is installed below the sedimentation tank of the impurity precipitation mechanism, and its upper end is deep into the sedimentation tank; the bottom of the impurity recovery mechanism is installed above the sedimentation tank; the control console is installed on the side of the support base;

[0008] The sewage is filtered out of impurities in the water by the impurity recovery mechanism and then flows into the impurity precipitation mechanism. After sludge precipitation is carried out in the impurity precipitation mechanism, the separated clean water is purified and disinfected by the purification and disinfection mechanism and then discharged from the clean water discharge spiral pipe; the sludge treatment mechanism can clean and discharge the sludge in the impurity precipitation mechanism.

[0009] Furthermore, the impurity recovery mechanism includes: a sewage inlet, a filter barrel, a filter, a filter sheet, a sewage outlet, an outer barrel and a motor A;

[0010] The sewage inlet is opened at the top of the filter barrel, and a filter is installed in the filter barrel for rotation; filter plates are evenly distributed on the rotating shaft of the filter, and a plurality of small holes are provided on the filter plates; the filter plates are divided into upper and lower plates, and the filter plate at the upper end is rotatably installed on the filter plate at the lower end, and a rotating gear is fixed on the filter plate at the upper end; the rotating shaft of the filter is installed on the motor shaft of the motor A; the filter barrel and the motor A are both fixedly installed on the outer barrel, and a small water flow hole is provided at the lower end of the filter barrel; one end of the sewage outlet extends into the filter barrel, and the other end extends out of the outer barrel.

[0011] Furthermore, the impurity precipitation mechanism comprises: a precipitation tank, a sediment detection mechanism, a water level detection rod, a sensing rod and a switch mechanism;

[0012] The sedimentation tank is fixedly installed on a supporting base, and the sediment detection mechanism is installed on the side of the sedimentation tank; the water level detection rod is slidably installed on the side wall of the sedimentation tank; the sensing rod is slidably installed on the outer barrel, and the upper end of the sensing rod is a rack, which is meshed with a rotating ratchet of the switch mechanism. The rotating ratchet drives the cover of the switch mechanism to rotate through a belt transmission mechanism to control the closing of the sewage inlet.

[0013] Furthermore, the sediment detection mechanism includes: a motor B, a gear B and a rack detection rod; the motor B is fixedly installed on the side of the sedimentation tank, and the gear B is installed on its motor shaft; the gear B is meshed with the rack portion of the rack detection rod, and the detection scale portion of the rack detection rod extends into the sedimentation tank and is slidably installed on the inner wall of the sedimentation tank.

[0014] Furthermore, the purification and disinfection mechanism comprises: a water outlet, a transmission box, a dosing box, a quantitative box and a stirring pipe;

[0015] One end of the water outlet is slidably installed on the side wall of the sedimentation tank, and can be adjusted to different heights according to the position of the precipitated clean water, and the other end is connected with a common pipe; the common pipe extends into the interior of the transmission box, the housing of the transmission box is fixedly installed on the common pipe, the housing of the dosing box is fixedly installed on the side of the housing of the transmission box, and the dosing box is installed above the housing of the dosing box; an impact rotating gear is arranged inside the transmission box, a grooved disc is arranged inside the dosing box, and the impact rotating gear can drive the grooved disc to rotate intermittently; the bottom of the housing of the dosing box is connected with the common pipe at the bottom of the housing of the transmission box through a common pipe, the other end of the common pipe at the bottom of the housing of the transmission box is connected with the water inlet end of the stirring tube, and the water outlet end of the stirring tube is connected with the clean water discharge spiral tube.

[0016] Furthermore, the sludge treatment mechanism comprises: a motor C, a scraper, an arc baffle, a ball and a circular track;

[0017] The motor C is fixedly installed at the bottom of the sedimentation tank through a motor seat, and its motor shaft extends into the sedimentation tank and is connected to the center of the circular track through a bearing; one end of the scraper is fixedly sleeved on the motor shaft, and the other end is slidably installed on the circular track through a slider; the arc baffle is fixedly installed on the scraper, and the ball blocks the sewage outlet at the bottom of the sedimentation tank through a reset spring, and the arc baffle can press the ball.

[0018] Furthermore, the return spring is made of 65Mn spring steel after quenching treatment.

[0019] Since the present invention adopts the above technical solution, the present invention has the following advantages:

[0020] (1) The present invention allows sewage to pass through an impurity recovery mechanism to filter out impurities in the water and then flow into an impurity precipitation mechanism. After sludge is precipitated in the impurity precipitation mechanism, the separated clean water is purified and disinfected by a purification and disinfection mechanism and then discharged from a clean water discharge spiral pipe. The sludge treatment mechanism can clean and discharge the sludge in the impurity precipitation mechanism, thereby realizing the rapid discharge of filtered impurities without stopping the machine. The sewage treatment tower can be intelligently started and stopped, and can further precipitate and purify and automatically clean the sludge, thereby greatly improving the purification efficiency and purification quality.

[0021] (2) The present invention allows sewage to enter the filter barrel through the sewage inlet, and the impurities are driven to the sewage outlet by the rotation of the filter. When the filter plate rotates to the sewage outlet, the impurities on the filter plate are poured into the sewage outlet and discharged through the sewage outlet. A small ball is installed in the small hole inside the filter plate, and the small ball is rotated by the water flow, so that the drainage hole on the filter plate will not be blocked by impurities, thereby achieving a self-cleaning effect.

[0022] (3) The present invention further purifies the water by fully dissolving the drug powder in water, thereby improving the purification quality; when all the clean water in the sedimentation tank is discharged, the sewage outlet at the lower end is opened, and the sludge on the bottom plate is completely discharged from the sewage outlet. The ball bounces upward and blocks the sewage outlet, thereby achieving the effect of automatically cleaning the sludge and improving the purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention after the supporting base and the sedimentation tank are hidden.

[0025] Figure 3 It is a structural schematic diagram of the impurity recovery mechanism of the present invention.

[0026] Figure 4 It is a schematic structural diagram of the impurity precipitation mechanism of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the sediment detection mechanism of the present invention.

[0028] Figure 6 It is a schematic structural diagram of the purification and disinfection mechanism of the present invention.

[0029] Figure 7 It is a structural schematic diagram of the sludge treatment mechanism of the present invention.

[0030] Figure numbers: impurity recovery mechanism-1, impurity precipitation mechanism-2, purification and disinfection mechanism-3, sludge treatment mechanism-4, support base-5, sewage inlet-101, filter barrel-102, filter-103, filter plate-104, sewage outlet-105, outer barrel-106, motor A-107, sedimentation tank-201, sediment detection mechanism-202, water level detection rod-203, sensing rod-204, switch mechanism-205, motor B-2021, gear B-2022, rack detection rod-2023, water outlet-301, transmission box-302, dosing box-303, quantitative box-304, stirring tube-305, motor C-401, scraper-402, arc baffle-403, ball-404, circular track-405. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] Examples, such as Figure 1-7 As shown, a sewage treatment tower and treatment method include: an impurity recovery mechanism 1, an impurity precipitation mechanism 2, a purification and disinfection mechanism 3, a sludge treatment mechanism 4, a support base 5 and a control console; the impurity precipitation mechanism 2 is fixedly installed on the top of the support base 5; the upper part of the purification and disinfection mechanism 3 is connected with the upper part of the impurity precipitation mechanism 2, and the lower part of the purification and disinfection mechanism 3 is connected with the clean water discharge spiral pipe inside the support base 5; the sludge treatment mechanism 4 is installed below the sedimentation tank 201 of the impurity precipitation mechanism 2, and its upper end penetrates into the sedimentation tank 201; the bottom of the impurity recovery mechanism 1 is installed above the sedimentation tank 201; the control console is installed on the side of the support base 5; the control console can be a manual operation mechanism or an intelligent electric control mechanism, and the electric control components of each part are controlled by buttons on the control console, which can be specifically set according to actual needs;

[0033] After the impurities in the sewage are filtered out by the impurity recovery mechanism 1, it flows into the impurity precipitation mechanism 2. After the sludge is precipitated in the impurity precipitation mechanism 2, the separated clean water is purified and disinfected by the purification and disinfection mechanism 3 and then discharged from the clean water discharge spiral pipe; the sludge treatment mechanism 4 can clean and discharge the sludge in the impurity precipitation mechanism 2, thereby realizing the rapid discharge of filtered impurities without stopping the machine. The sewage treatment tower can be started and stopped intelligently, and can further precipitate, purify and automatically clean the sludge, thereby greatly improving the purification efficiency and purification quality.

[0034] Among them, the impurity recovery mechanism 1 includes: a sewage inlet 101, a filter barrel 102, a filter 103, a filter plate 104, a sewage outlet 105, an outer barrel 106 and a motor A107; the sewage inlet 101 is opened at the top of the filter barrel 102, and the filter 103 is rotatably installed inside the filter barrel 102; the filter plates 104 are evenly distributed on the rotating shaft of the filter 103, and a plurality of small holes are provided on the filter plates 104; the filter plates 104 are divided into upper and lower pieces, the filter plates 104 at the upper end are rotatably installed on the filter plates 104 at the lower end, and a rotating gear is fixed on the filter plates 104 at the upper end; the rotating shaft of the filter 103 is installed on the motor shaft of the motor A107; the filter barrel 102 and the motor A107 are both fixedly installed on the outer barrel 106, and a small water flow hole is opened at the lower end of the filter barrel 102; one end of the sewage outlet 105 extends into the filter barrel 102, and the other end extends out of the outer barrel 106. Sewage enters the filter barrel 102 through the sewage inlet 101, and the water flows from the small holes of the filter plate 104 to the lower end of the filter barrel 102, and then flows into the outer barrel 106 through the small holes at the lower end of the filter barrel 102; when the motor A107 drives the filter 103 to rotate, it will drive each filter plate 104 on the filter 103 to rotate, and the water flows out through the small holes on the filter plate 104, and the impurities in the water will be left on the filter plate 104, and the impurities will be driven to the sewage outlet 105 through the rotation of the filter 103 When the filter plate 104 rotates to the position of the sewage outlet 105, the gear on the filter plate at the upper end of the filter plate 104 meshes with the teeth on the inner side of the filter barrel 102, so that the filter plate at the upper end of the filter plate 104 is folded upward, and the impurities on the filter plate 104 are poured into the sewage outlet 105 and discharged through the sewage outlet 105; a small ball is rotatably installed in the small hole inside the filter plate 104, and the small ball is rotated by the water flow, so that the drainage hole on the filter plate 104 will not be blocked by impurities, thereby achieving a self-cleaning effect.

[0035] In an optional implementation manner in the embodiment of the present invention, as Figure 4-5As shown, the impurity sedimentation mechanism 2 includes: a sedimentation tank 201, a sediment detection mechanism 202, a water level detection rod 203, a sensing rod 204 and a switch mechanism 205; the sedimentation tank 201 is fixedly installed on the support base 5, and the sediment detection mechanism 202 is installed on the side of the sedimentation tank 201; the water level detection rod 203 is slidably installed on the side wall of the sedimentation tank 201; the sensing rod 204 is slidably installed on the outer barrel 106, and the upper end of the sensing rod 204 is a rack, which is meshed with the rotating ratchet of the switch mechanism 205, and the rotating ratchet drives the cover of the switch mechanism 205 to rotate through the belt transmission mechanism to control the closing of the sewage inlet 101. The sediment detection mechanism 202 includes: a motor B2021, a gear B2022 and a rack detection rod 2023; the motor B2021 is fixedly installed on the side of the sedimentation tank 201, and the gear B2022 is installed on its motor shaft; the gear B2022 is meshed with the rack portion of the rack detection rod 2023, and the detection scale portion of the rack detection rod 2023 extends into the sedimentation tank 201 and is slidably installed on the inner wall of the sedimentation tank 201. After being filtered by the impurity recovery mechanism 1 at the upper end, the sewage flows into the sedimentation tank 201 and begins to precipitate. When the water in the sedimentation tank 201 continues to increase, the rising water level will drive the water level detection rod 203 to move upward. When the sensing ball at the upper end of the water level detection rod 203 contacts the sensing ball at the lower end of the sensing rod 204, the impurity recovery mechanism 1 at the upper end stops working, and the water level detection rod 203 moves upward to push the sensing rod 204 to move upward. The rack at the upper end of the sensing rod 204 contacts the ratchet on the switch mechanism 205, thereby rotating the ratchet. The lid of the switch mechanism 205 is closed through the rotation transmission of the ratchet, thereby stopping the sewage from entering the mechanism. After a period of sedimentation, the sewage in the sedimentation tank 201 is rotated by the motor B2021 with the gear B2022, thereby driving the rack detection rod 2023 to move up and down to detect the position of the sediment. When water needs to be added, the switch mechanism 205 is manually reset and opened, thereby realizing intelligent sedimentation control.

[0036] In an optional implementation manner in the embodiment of the present invention, as Figure 6As shown, the purification and disinfection mechanism 3 includes: a water discharge port 301, a transmission box 302, a dosing box 303, a quantitative box 304 and a stirring tube 305; one end of the water discharge port 301 is slidably mounted on the side wall of the sedimentation tank 201, and can be adjusted to different heights according to the position of the sedimentation water, and the other end is connected to a common pipeline; the common pipeline extends into the transmission box 302, the box body of the transmission box 302 is fixedly mounted on the common pipeline, the box body of the quantitative box 304 is fixedly mounted on the side of the box body of the transmission box 302, and the dosing box 303 is fixedly mounted on the side of the box body of the transmission box 302. Box 303 is installed above the body of the metering box 304; an impact rotating gear is arranged inside the transmission box 302, and a groove disc is arranged inside the metering box 304, and the impact rotating gear can drive the groove disc to rotate intermittently; the bottom of the body of the metering box 304 is connected with the ordinary pipe at the bottom of the body of the transmission box 302 through an ordinary pipe, and the other end of the ordinary pipe at the bottom of the body of the transmission box 302 is connected with the water inlet end of the stirring tube 305, and the water outlet end of the stirring tube 305 is connected with the clean water discharge spiral pipe. After settling for a certain period of time, the sludge is separated from the clean water, and the clean water is discharged through the drain port 301 through a common pipe. The drain port 301 is provided with water outlets at different heights, which can be adjusted according to the different positions of the clean water; the clean water enters the transmission box 302 through a common pipe, and the water flow drives the gears inside the transmission box 302 to rotate. The rotation of the gears on the transmission box 302 drives the disc with a certain number of grooves in the quantitative box 304 to rotate, and the usage is controlled by the number of grooves; when the groove rotates to the top, the powder in the dosing box 303 enters the quantitative box 304 through the groove, and then rotates to the bottom, the powder will slide into the pipe from the bottom of the quantitative box 304 due to gravity, and merge with the water flowing out of the transmission box 302. When the flowing water passes through the stirring tube 305, the powder and water are fully dissolved through the threaded pipe inside the stirring tube 305, thereby further purifying the water and improving the purification quality.

[0037] In an optional implementation manner in the embodiment of the present invention, as Figure 7As shown, the sludge treatment mechanism 4 includes: a motor C401, a scraper 402, an arc baffle 403, a ball 404 and a circular track 405; the motor C401 is fixedly installed at the bottom of the sedimentation tank 201 through a motor seat, and its motor shaft extends into the sedimentation tank 201 and is connected to the center of the circular track 405 through a bearing; one end of the scraper 402 is fixedly sleeved on the motor shaft, and the other end is slidably installed on the circular track 405 through a slider; the arc baffle 403 is fixedly installed on the scraper 402, and the ball 404 blocks the sewage outlet at the bottom of the sedimentation tank 201 through a reset spring, and the arc baffle 403 can press the ball 404; the reset spring is made of 65Mn spring steel after quenching treatment, which can effectively provide a service life. When all the clean water in the sedimentation tank 201 is discharged, the motor C401 is started to rotate the scraper 402 fixed on the motor shaft at the same time, and the scraper 402 pushes and rotates the sludge at the bottom. When the scraper 402 rotates to the three-quarter position of the circle, the front end of the arc baffle 403 fixed on the scraper 402 contacts the ball 404 and presses the ball 404 to open the sewage outlet at the lower end. The motor C401 continues to rotate, thereby driving the scraper 402 to continue to rotate, so that the sludge on the bottom plate is completely discharged from the sewage outlet. After the motor C401 rotates in the opposite direction to return the scraper 402, the spring at the lower end of the ball 404 makes the 404 bounce upward and block the sewage outlet. Thus, the effect of automatically cleaning the sludge is achieved and the purification efficiency is improved.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

Claims

1. A sewage treatment tower, characterized in that: include: An impurity recovery mechanism (1), an impurity precipitation mechanism (2), a purification and disinfection mechanism (3), a sludge treatment mechanism (4), a support base (5) and a control console; The impurity settling mechanism (2) is fixedly mounted on the top of the support base (5); the upper portion of the purification and disinfection mechanism (3) is connected to the upper portion of the impurity settling mechanism (2), and the lower portion of the purification and disinfection mechanism (3) is connected to the clean water discharge spiral pipe inside the support base (5); the sludge treatment mechanism (4) is mounted below the sedimentation tank (201) of the impurity settling mechanism (2), and its upper end is inserted into the sedimentation tank (201); the bottom of the impurity recovery mechanism (1) is mounted above the sedimentation tank (201); and the control console is mounted on the side of the support base (5); The sewage passes through the impurity recovery mechanism (1) to filter out impurities in the water and then flows into the impurity precipitation mechanism (2). After sludge is precipitated in the impurity precipitation mechanism (2), the separated clean water is purified and disinfected by the purification and disinfection mechanism (3) and then discharged from the clean water discharge spiral pipe; the sludge treatment mechanism (4) can clean and discharge the sludge in the impurity precipitation mechanism (2); The impurity recovery mechanism (1) comprises: a sewage inlet (101), a filter barrel (102), a filter (103), a filter sheet (104), a sewage outlet (105), an outer barrel (106), and a motor A (107); The sewage inlet (101) is provided at the top of the filter barrel (102), and a filter (103) is rotatably mounted inside the filter barrel (102); filter plates (104) are evenly distributed on the rotating shaft of the filter (103), and the filter plates (104) are provided with a plurality of small holes; the filter plates (104) are divided into an upper and a lower plate, and the upper filter plate (104) is rotatably mounted on the lower filter plate (104), and a rotating gear is fixed on the upper filter plate (104); the rotating shaft of the filter (103) is mounted on the motor shaft of the motor A (107); the filter barrel (102) and the motor A (107) are both fixedly mounted on the outer The filter barrel (102) is provided with a small water flow hole at the lower end thereof; one end of the sewage outlet (105) extends into the filter barrel (102) and the other end extends out of the outer barrel (106); the filter (103) rotates to drive the impurities to the sewage outlet (105); when the filter plate (104) rotates to the sewage outlet (105), the gear on the upper filter plate (104) meshes with the gear on the inner side of the filter barrel (102), so that the filter plate (104) at the upper end is folded upward, and the impurities on the filter plate (104) are poured into the sewage outlet (105) and discharged through the sewage outlet (105).

2. A sewage treatment tower according to claim 1, characterized in that: The impurity sedimentation mechanism (2) comprises: a sedimentation tank (201), a sediment detection mechanism (202), a water level detection rod (203), a sensing rod (204) and a switch mechanism (205); The sedimentation tank (201) is fixedly mounted on a support base (5); the sediment detection mechanism (202) is mounted on a side of the sedimentation tank (201); the water level detection rod (203) is slidably mounted on a side wall of the sedimentation tank (201); the sensing rod (204) is slidably mounted on an outer barrel (106); the upper end of the sensing rod (204) is a rack, which meshes with a rotating ratchet of a switch mechanism (205); the rotating ratchet drives the cover of the switch mechanism (205) to rotate through a belt transmission mechanism to control the closing of the sewage inlet (101).

3. A sewage treatment tower according to claim 2, characterized in that: The sediment detection mechanism (202) comprises: a motor B (2021), a gear B (2022) and a rack detection rod (2023); the motor B (2021) is fixedly mounted on the side of the sedimentation tank (201), and the gear B (2022) is mounted on its motor shaft; the gear B (2022) is meshed with the rack portion of the rack detection rod (2023), and the detection scale portion of the rack detection rod (2023) extends into the sedimentation tank (201) and is slidably mounted on the inner wall of the sedimentation tank (201).

4. A sewage treatment tower according to any one of claims 1 to 3, characterized in that: The purification and disinfection mechanism (3) comprises: a water outlet (301), a transmission box (302), a drug adding box (303), a quantitative box (304) and a stirring tube (305); One end of the water outlet (301) is slidably mounted on the side wall of the sedimentation tank (201) and can be adjusted to different heights according to the position of the settled clean water, and the other end is connected to a common pipe; the common pipe extends into the transmission box (302), the casing of the transmission box (302) is fixedly mounted on the common pipe, the casing of the dosing box (304) is fixedly mounted on the side of the casing of the transmission box (302), and the dosing box (303) is mounted above the casing of the dosing box (304); an impact rotating gear is arranged inside the transmission box (302), and a grooved disc is arranged inside the dosing box (304), and the impact rotating gear can drive the grooved disc to rotate intermittently; the bottom of the casing of the dosing box (304) is connected to the common pipe at the bottom of the casing of the transmission box (302) through a common pipe, the other end of the common pipe at the bottom of the casing of the transmission box (302) is connected to the water inlet end of the stirring tube (305), and the water outlet end of the stirring tube (305) is connected to the clean water discharge spiral tube.

5. A sewage treatment tower according to claim 4, characterized in that: The sludge treatment mechanism (4) comprises: a motor C (401), a scraper (402), an arc baffle (403), a ball (404) and a circular track (405); The motor C (401) is fixedly mounted on the bottom of the sedimentation tank (201) via a motor seat, and its motor shaft extends into the sedimentation tank (201) and is connected to the center of the circular track (405) via a bearing; one end of the scraper (402) is fixedly sleeved on the motor shaft, and the other end is slidably mounted on the circular track (405) via a slider; the arc baffle (403) is fixedly mounted on the scraper (402), and the ball (404) blocks the sewage outlet at the bottom of the sedimentation tank (201) via a reset spring, and the arc baffle (403) can press the ball (404).

6. A sewage treatment tower according to claim 5, characterized in that: The return spring is made of 65Mn spring steel after quenching treatment.

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