An integrated sewage treatment equipment

Abstract

The present invention relates to an integrated sewage treatment equipment, including sewage sedimentation and filtration equipment, a secondary sewage treatment device and a drainage box, wherein the sewage sedimentation and filtration equipment has a first drainage port and a second drainage port, wherein the first drainage port is connected to the drainage box through a first pipeline, and a first control valve is arranged at the first drainage port, wherein the second drainage port is connected to the liquid inlet of the secondary sewage treatment device through a second pipeline, and an electric control conveying device is arranged on the second pipeline, wherein a water quality detector is arranged at the second drainage port, and the electric control conveying device is used to control the flow of sewage to the secondary sewage treatment device, wherein the electric control conveying device and the first control valve are selectively opened, and a drainage pipe is arranged at the liquid outlet of the secondary sewage treatment device, and a second control valve is arranged on the drainage pipe. Advantages: water can be classified and discharged according to the water quality detection results, which greatly improves the sewage treatment quality of the sewage treatment equipment body, improves the wastewater treatment efficiency, and achieves a high-efficiency sewage treatment effect.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to an integrated sewage treatment device. Background Art

[0002] Sewage treatment (wastewater treatment) is the process of purifying sewage to meet the water quality requirements for discharge into a water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical treatment, catering, etc., and is increasingly entering the daily lives of ordinary people.

[0003] Most of the existing sewage treatment equipment is composed of multiple single sewage treatment structures repeatedly spliced ​​and installed through conduits. It has many structures and is relatively complicated to operate. It will affect the subsequent sewage treatment efficiency to a certain extent and delay the treatment time. It has poor practicality. At the same time, the existing sewage treatment equipment is unable to detect water quality and treat sewage in different ways according to the detection values, and the sewage treatment quality is poor.

[0004] Therefore, how to design an integrated sewage treatment equipment has become a problem that we currently need to solve. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an integrated sewage treatment device, which effectively overcomes the defects of the prior art.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] An integrated sewage treatment device comprises a sewage sedimentation and filtration device, a secondary sewage treatment device and a drainage tank, wherein the sewage sedimentation and filtration device comprises a first drainage port and a second drainage port, wherein the first drainage port is connected to the drainage tank through a first pipeline, and a first control valve is arranged at the first drainage port, wherein the second drainage port is connected to a liquid inlet of the secondary sewage treatment device through a second pipeline, and an electric-controlled conveying device is arranged on the second pipeline, wherein a water quality detector for detecting whether water quality meets the standard is arranged at the second drainage port, and the electric-controlled conveying device is used to control the sewage to flow to the secondary sewage treatment device according to the detection information of the water quality detector, wherein one of the electric-controlled conveying device and the first control valve is selectively opened, and when the liquid water quality of the second drainage port meets the standard, the electric-controlled conveying device stops running and the first control valve is opened, and when the liquid water quality of the second drainage port does not meet the standard, the electric-controlled conveying device is operated and the first control valve is closed, and a drainage pipe connected to the drainage tank is arranged at the liquid outlet of the secondary sewage treatment device, and a second control valve is arranged on the drainage pipe.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the above-mentioned sewage sedimentation and filtration equipment includes a sedimentation tank and a filter arranged on one side of the above-mentioned sedimentation tank, the upper part of the above-mentioned sedimentation tank is open, and an anti-splash filter screen is horizontally arranged in the opening, a sedimentation baffle is arranged in the lower part of the interior of the above-mentioned sedimentation tank, an upper clear liquid area is formed between the above-mentioned anti-splash filter screen and the sedimentation baffle, a sewage outlet connected to the above-mentioned upper clear liquid area is arranged on the upper part of the side wall of one side of the above-mentioned sedimentation tank, the above-mentioned sewage outlet is connected to the liquid inlet of the above-mentioned filter through a pipeline with a delivery pump group, and the above-mentioned first drain port and the second drain port are arranged on the above-mentioned filter.

[0010] Furthermore, a sediment collecting tray is provided inside the sedimentation box near the bottom wall, and an outlet for the sediment collecting tray to pass through is opened on one side of the sedimentation box, one end of the sediment collecting tray passes through the outlet and is sealed and connected with the outlet, and a slide groove for the corresponding side end of the sediment collecting tray to be embedded is provided on the other side inner wall of the sedimentation box.

[0011] Furthermore, the filter comprises a filter box and a filter inner cylinder arranged inside the filter box, the filter box is open at the top and is provided with a cover plate, which is arranged on one side of the sedimentation box and below the sewage outlet, a filter element is provided in the filter inner cylinder, the delivery pump group is installed at the sewage outlet, the liquid inlet end of the delivery pump group is connected to a pipeline extending into the upper clear liquid area, a liquid inlet is provided on the cover plate at a position corresponding to the top of the filter inner cylinder, the liquid outlet end of the delivery pump group is connected to the liquid inlet on the cover plate through a downwardly extending path, and the pipeline extends downward to the pipeline above the filter inner cylinder, and the first and second liquid discharge ports are provided at the lower end of one side of the filter box.

[0012] Furthermore, a transparent observation window is provided on the side wall of the filter box.

[0013] Furthermore, the above-mentioned secondary sewage treatment device includes a wastewater treatment tank and a stirring structure. The above-mentioned wastewater treatment tank is provided with a liquid inlet on one side, a liquid outlet at the lower part of the other side, and a chemical addition port on the top. The above-mentioned stirring structure is arranged on the above-mentioned wastewater treatment tank for stirring the liquid inside it.

[0014] Furthermore, the stirring structure includes a driving device, a stirring shaft and a stirring blade arranged on the stirring shaft. The stirring shaft is vertically arranged in the wastewater treatment tank, and its lower end is close to the bottom wall of the wastewater treatment tank. The driving device is installed on the top of the wastewater treatment tank. The upper end of the stirring shaft passes through the top wall of the wastewater treatment tank and is transmission-connected to the driving device. The driving device is used to drive the stirring shaft to rotate around its axis.

[0015] Furthermore, the driving device is a motor.

[0016] Furthermore, the above-mentioned electrically controlled conveying device includes a box body and a liquid pump. The above-mentioned liquid pump is installed in the above-mentioned box body and is electrically connected to the controller installed in the above-mentioned box body. The liquid inlet and outlet ends of the above-mentioned liquid pump are respectively connected to the above-mentioned second liquid discharge port and the drainage box through pipelines passing through the above-mentioned box body. The above-mentioned water quality detector is electrically connected to the above-mentioned controller. The above-mentioned first control valve and the second control valve are both electrically controlled valves connected to the above-mentioned controller. The above-mentioned controller is used to selectively control the conduction of the above-mentioned first control valve or the operation of the liquid pump according to the detection information of the above-mentioned water quality detector.

[0017] Furthermore, the level of the drainage tank is equal to the level of the sewage primary sedimentation device, the filter and the secondary sewage treatment device.

[0018] The beneficial effects of the present invention are: it can classify and discharge water according to the water quality detection results, greatly improving the treatment quality of sewage by the sewage treatment equipment body, improving the wastewater treatment efficiency, and achieving efficient sewage treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the integrated sewage treatment equipment of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the sewage sedimentation and filtration equipment in the integrated sewage treatment equipment of the present invention;

[0021] Figure 3 It is a structural schematic diagram of a secondary sewage treatment device in the integrated sewage treatment equipment of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the electric control conveying device in the integrated sewage treatment equipment of the present invention.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Sedimentation tank, 2. Filter, 3. Secondary sewage treatment device, 4. Drainage tank, 5. Delivery pump group, 6. First control valve, 7. Electric control delivery device, 8. Water quality detector, 9. Second control valve, 11. Anti-splash filter, 12. Sedimentation baffle, 13. Sewage outlet, 14. Sediment collection tray, 21. Filter box, 22. Filter inner cylinder, 23. Cover plate, 24. Filter element, 31. Wastewater treatment tank, 32. Stirring structure, 41. First pipeline, 71. Box body, 72. Liquid pump, 73. Controller, 211. Observation window, 311. Drug addition port, 321. Drive device, 322. Stirring shaft, 323. Stirring paddle. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0026] Example: Figure 1 As shown, the integrated sewage treatment equipment of this embodiment includes a sewage sedimentation and filtration device, a secondary sewage treatment device 3 and a drainage tank 4. The sewage sedimentation and filtration device has a first drainage port and a second drainage port. The first drainage port is connected to the drainage tank 4 through a first pipeline 41, and a first control valve 6 is provided at the first drainage port. The second drainage port is connected to the liquid inlet of the secondary sewage treatment device 3 through a second pipeline, and an electric control conveying device 7 is provided on the second pipeline. A water quality detector 8 for detecting whether the water quality meets the standard is provided at the second drainage port. The electric control The conveying device 7 is used to control the flow of sewage to the secondary sewage treatment device 3 according to the detection information of the water quality detector 8. The electric-controlled conveying device 7 and the first control valve 6 are selectively opened, and when the liquid water quality of the second drainage port meets the standard, the electric-controlled conveying device 7 stops running and the first control valve 6 is opened. When the liquid water quality of the second drainage port does not meet the standard, the electric-controlled conveying device 7 runs and the first control valve 6 is closed. A drainage pipe connected to the drainage tank 4 is provided at the liquid outlet of the secondary sewage treatment device 3, and a second control valve 9 is provided on the drainage pipe.

[0027] The sewage treatment process is as follows:

[0028] Sewage enters the sewage sedimentation and filtration equipment for sedimentation and then filtration. After that, the water quality detector 8 detects the treated water and evaluates the pollution value of the water quality. The next step of treatment is selected according to the degree of water pollution. Specifically, when the value is lower than the specified value, it proves that the water pollution level is low and can meet the discharge standard. At this time, the first control valve 6 is opened, and the electric control conveying device 7 is not running. The water is directly introduced into the drainage box 4 through the first pipeline 41 for discharge. On the contrary, when it is higher than the specified value, the first control valve 6 is controlled to be closed, and the electric control conveying device 7 is started to run, and the water that does not meet the discharge standard is introduced into the secondary sewage treatment device 3 for secondary sewage treatment. The treatment quality of sewage by the entire equipment is greatly improved. At the same time, the water quality value will also be displayed on the display at the front end of the water quality detector 8, which is convenient for the staff to check or prepare sewage treatment drugs according to the water quality value. Add the prepared medicine at the secondary sewage treatment device 3 to facilitate the use of the subsequent secondary sewage treatment device 3 during operation; finally, when the sewage that does not meet the discharge standards is introduced into the secondary sewage treatment device 3 through the electronically controlled conveying device 7, the user can select the corresponding proportion of wastewater treatment agents according to the water quality detection value, and add it to the secondary sewage treatment device 3 to subject the sewage to secondary treatment, thereby improving the wastewater treatment efficiency and the wastewater treatment quality to a certain extent. After that, the treated water can be tested again by the water quality detection probe 401 at the right end of the water quality detector 8. When the water meets the discharge standard, the second control valve 9 is controlled to open, and the water is directly introduced into the drainage box 4 for subsequent discharge. On the contrary, for the water that still does not meet the discharge standard, the staff can add the corresponding medicine to the secondary sewage treatment device 3 according to the water quality value for multiple treatments to ensure the quality of sewage treatment and achieve efficient sewage treatment effects.

[0029] As a preferred embodiment, Figure 2 As shown, the sewage sedimentation and filtration equipment includes a sedimentation tank 1 and a filter 2 arranged on one side of the sedimentation tank 1. The upper part of the sedimentation tank 1 is open, and an anti-splash filter screen 11 is horizontally arranged in the open part. A sedimentation baffle 12 is arranged at the lower part of the interior of the sedimentation tank 1. An upper clear liquid area is formed between the anti-splash filter screen 11 and the sedimentation baffle 12. A sewage outlet 13 connected to the upper clear liquid area is arranged at the upper part of the side wall of one side of the sedimentation tank 1. The sewage outlet 13 is connected to the liquid inlet of the filter 2 through a pipeline with a delivery pump group 5. The filter 2 is provided with the first drain port and the second drain port.

[0030] In this embodiment, the sewage sedimentation and filtration equipment is simple and reasonable in design, and can effectively precipitate sewage. After removing the sediment, the pressure and load of subsequent filtration treatment are reduced, making the sewage treatment efficiency of the entire equipment high and the quality better.

[0031] As a preferred embodiment, a sedimentation collecting tray 14 is provided near the bottom wall inside the sedimentation box 1, and an outlet for the sedimentation collecting tray 14 to pass through is opened on one side of the sedimentation box 1, one end of the sedimentation collecting tray 14 passes through the outlet and is sealed and connected with the outlet, and a slide groove for the corresponding side end of the sedimentation collecting tray 14 to be embedded is provided on the other side inner wall of the sedimentation box 1.

[0032] In this embodiment, the sediment collection tray 14 is a structure embedded in the bottom of the sedimentation box 1, and its main function is to uniformly contain and collect the polluted waste generated by the sedimentation in the sedimentation box 1. When the user needs to clean the sediment in the sedimentation box 1, he only needs to pull the sediment collection tray 14 out of the sedimentation box 1 and clean the sediment collection tray 14, which greatly facilitates the subsequent cleaning work of the staff. After that, the staff can insert the cleaned waste collection tray 204 into the sedimentation box 1 for repeated use. It should be noted that a rubber ring is provided at the connection position between the sediment collection tray 14 and the sedimentation box 1, which can effectively ensure the sealing of the subsequent sedimentation box 1 during use.

[0033] As a preferred embodiment, Figure 2 As shown, the filter 2 comprises a filter box 21 and a filter inner cylinder 22 arranged inside the filter box 21. The filter box 21 is open at the top and is provided with a cover plate 23, and is arranged on one side of the sedimentation tank 1 and below the sewage outlet 13. A filter element 24 is provided in the filter inner cylinder 22. The delivery pump group 5 is installed at the sewage outlet 13. The liquid inlet end of the delivery pump group 5 is connected with a pipeline extending into the upper clear liquid area. A liquid inlet is provided on the cover plate 23 at a position corresponding to the upper part of the filter inner cylinder 22. The liquid outlet end of the delivery pump group 5 is connected with the liquid inlet on the cover plate 23 through a downwardly extending path, and the pipeline extends downward to the pipeline above the filter inner cylinder 22. The first liquid discharge port and the second liquid discharge port are provided at the lower end of one side of the filter box 21.

[0034] In this embodiment, a multi-layer filtering structure is arranged in the filter element 24, which includes a coarse filter cotton layer, a fine filter cotton layer, a ceramic filter layer and a compressed activated carbon layer, which can effectively filter and purify impurities in sewage with high quality. Large particles of impurities in sewage can be isolated and filtered through the filter cotton structure, and then smaller particles in sewage can be adsorbed and filtered through the ceramic filter layer and the activated carbon layer, and at the same time, the sewage can be purified to a certain extent. It should be noted that the filter element 24 is a structure embedded and overlapped in the upper part of the inner filter cylinder 22. In order to ensure the quality of subsequent filtration, the staff can regularly replace the filter element 24. The structure design of the entire filter 2 is simple and the filtering effect is good.

[0035] A transparent observation window 211 is provided on the side wall of the filter box 21, through which the working conditions of the filtering process inside the filter box 21 can be visually observed, so that the operator can make timely responses according to the internal working conditions.

[0036] As a preferred embodiment, Figure 3 As shown, the secondary sewage treatment device 3 includes a wastewater treatment tank 31 and a stirring structure 32. The wastewater treatment tank 31 is provided with a liquid inlet on one side and a liquid outlet at the lower part of the other side. A chemical addition port 311 is provided on the top. The stirring structure 32 is arranged on the wastewater treatment tank 31 for stirring the liquid inside.

[0037] In this embodiment, the design of the stirring structure 32 enables the reagent to be evenly and quickly mixed with the sewage after being added into the wastewater treatment tank 31, thereby accelerating the reaction process and improving the efficiency and quality of sewage treatment.

[0038] More specifically, the stirring structure 32 includes a driving device 321, a stirring shaft 322 and a stirring paddle 323 arranged on the stirring shaft 322. The stirring shaft 322 is vertically arranged in the wastewater treatment tank 31, and its lower end is close to the bottom wall of the wastewater treatment tank 31. The driving device 321 is installed on the top of the wastewater treatment tank 31. The upper end of the stirring shaft 322 passes through the top wall of the wastewater treatment tank 31 and is transmission-connected to the driving device 321. The driving device 321 is used to drive the stirring shaft 322 to rotate around its axis.

[0039] During use, after the sewage that does not meet the discharge standard is introduced into the wastewater treatment box 31 through the water quality detector 8, the user can select the corresponding proportion of wastewater treatment reagents according to the water quality detection value, and pour it into the wastewater treatment box 31 through the reagent addition port 311. After that, the user can start the driving device 321 at the top of the wastewater treatment box 31 by pressing the wastewater processor control button on the water quality detector 8. The driving device 321 drives the stirring shaft 322 and the stirring paddle 323 at the bottom to stir and mix the sewage and the treatment reagent, thereby improving the wastewater treatment efficiency and the wastewater treatment quality to a certain extent. After that, the treated water can be tested again by the water quality detector 8. When the water meets the discharge standard, the second control valve 9 can be controlled to open, and the water can be directly introduced into the drainage box 4 for subsequent discharge. On the contrary, for the water that still does not meet the discharge standard, the staff can add corresponding drugs to the reagent addition port 311 according to the water quality value for multiple treatments to ensure the quality of sewage treatment and achieve efficient sewage treatment effect.

[0040] The driving device 321 is a motor, which is easy to use and stable in operation.

[0041] As a preferred embodiment, Figure 4 As shown, the above-mentioned electrically controlled conveying device 7 includes a box body 71 and a liquid pump 72. The above-mentioned liquid pump 72 is installed in the above-mentioned box body 71 and is electrically connected to the controller 73 installed in the above-mentioned box body 71. The liquid inlet end and the liquid outlet end of the above-mentioned liquid pump 72 are respectively connected to the above-mentioned second liquid discharge port and the drainage box 4 through the pipeline passing through the above-mentioned box body 71. The above-mentioned water quality detector 8 is electrically connected to the above-mentioned controller 73. The above-mentioned first control valve 6 and the second control valve 9 are both electrically controlled valves connected to the above-mentioned controller 73. The above-mentioned controller 73 is used for controlling the above-mentioned first control valve 6 to be turned on or the liquid pump 72 to operate according to the detection information of the above-mentioned water quality detector 8.

[0042] In this embodiment, a liquid pump inlet is provided at one end of the box body 71, and the liquid pump inlet is directly connected to and communicated with the liquid inlet end of the liquid pump 72. During operation, the water treated by the sewage sedimentation and filtration equipment is detected by the water quality detector 8. When the water reaches the discharge standard, the controller 73 automatically controls the first control valve 6 to open, and the water is directly introduced into the drainage box 4 for subsequent discharge. If the sewage does not meet the discharge standard after being treated by the sewage sedimentation and filtration equipment, the controller 73 simultaneously controls the first control valve 6 to close, controls the liquid pump 72 to run, and introduces the sewage into the secondary sewage treatment device 3, and controls the driving device 321 to run at the same time. The staff adds the appropriate agent through the agent addition port 311. After treatment, during the stirring treatment process, the water quality detector 8 monitors the water quality in real time. If it meets the standard, the controller 73 automatically controls the second control valve 9 to open, and the water is directly introduced into the drainage box 4 for subsequent discharge. On the contrary, if the water still does not meet the discharge standard, the staff can add the corresponding medicine to the agent addition port 311 according to the water quality value for multiple treatments to ensure the quality of sewage treatment and achieve efficient sewage treatment effect.

[0043] It should be noted that the controller 73 is a single chip microcomputer, a circuit board connected to the single chip microcomputer is provided inside the box 71, and the first control valve 6, the second control valve 9, and the drive device 32 are all connected to the single chip microcomputer through the circuit board.

[0044] The above-mentioned water quality detector 8 is a product of the prior art, which has two detection probes, one of which is used to detect the water quality information in the second drainage port (that is, the water quality information after treatment by the sewage sedimentation and filtration equipment), and the other detection probe is arranged in the wastewater treatment tank (specifically in the drainage pipe) to detect the water quality information after treatment by the secondary sewage treatment device 3.

[0045] As a preferred embodiment, the level of the drainage tank 4 is equal to the level of the sewage primary sedimentation device 1 , the filter 2 and the secondary sewage treatment device 3 .

[0046] In this embodiment, by utilizing the water level difference, the liquid discharged from the first liquid discharge port can smoothly enter the drainage box 4 without using a power transmission device, thereby saving energy consumption.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated sewage treatment equipment, characterized in that: The invention comprises a sewage sedimentation and filtration device, a secondary sewage treatment device (3) and a drainage box (4), wherein the sewage sedimentation and filtration device has a first drainage port and a second drainage port, wherein the first drainage port is connected to the drainage box (4) via a first pipeline (41), and a first control valve (6) is provided at the first drainage port, wherein the second drainage port is connected to a liquid inlet of the secondary sewage treatment device (3) via a second pipeline, and an electric control conveying device (7) is provided on the second pipeline, wherein a water quality detector (8) for detecting whether water quality meets the standard is provided at the second drainage port, and the electric control conveying device (7) is used to control the sewage to flow to the secondary sewage treatment device (3) according to the detection information of the water quality detector (8). The secondary sewage treatment device (3) is provided with a drainage pipe connected to the drainage tank (4) at the liquid outlet, and a second control valve (9) is provided on the drainage pipe; the sewage sedimentation and filtration equipment comprises a sedimentation tank (1) and a filter (2) arranged on one side of the sedimentation tank (1); the sedimentation tank (1) is open at the top, and a waterproof A splash filter (11), a sedimentation baffle (12) is provided at the lower part of the interior of the sedimentation box (1), an upper clear liquid area is formed between the anti-splash filter (11) and the sedimentation baffle (12), a sewage outlet (13) connected to the upper clear liquid area is provided at the upper part of a side wall of one side of the sedimentation box (1), the sewage outlet (13) is connected to the liquid inlet of the filter (2) through a pipeline with a delivery pump group (5), and the filter (2) is provided with the first liquid discharge port and the second liquid discharge port; a sediment collection tray (14) is provided at a position near the bottom wall of the sedimentation box (1), and an outlet for the sediment collection tray (14) to pass through is opened on one side of the sedimentation box (1), and the sediment One end of the collection tray (14) passes through the outlet and is sealed and connected to the outlet. The other side inner wall of the sedimentation box (1) is provided with a slide groove for the corresponding side end of the sediment collection tray (14) to be embedded. The filter (2) comprises a filter box (21) and a filter inner cylinder (22) arranged inside the filter box (21). The filter box (21) is open at the top and is provided with a cover plate (23). It is arranged on one side of the sedimentation box (1) and below the sewage outlet (13). A filter element (24) is arranged inside the filter inner cylinder (22). A multi-layer filter structure is arranged inside the filter element (24), which comprises a coarse filter cotton layer, a fine filter cotton layer, a ceramic filter layer and a compressed activated carbon layer.The delivery pump group (5) is installed at the sewage outlet (13), the liquid inlet end of the delivery pump group (5) is connected to a pipeline extending into the upper clear liquid area, the cover plate (23) is provided with a liquid inlet at a position corresponding to the upper part of the filter inner cylinder (22), the liquid outlet end of the delivery pump group (5) is connected to the liquid inlet on the cover plate (23) through a pipeline extending downward, and the pipeline extending downward extends to the pipeline above the filter inner cylinder (22), and the first liquid discharge port and the second liquid discharge port are provided at the lower end of one side of the filter box (21). ; 2. The integrated sewage treatment equipment according to claim 1, characterized in that: A transparent observation window (211) is provided on the side wall of the filter box (21).

3. The integrated sewage treatment equipment according to claim 1, characterized in that: The secondary sewage treatment device (3) comprises a wastewater treatment tank (31) and a stirring structure (32); the wastewater treatment tank (31) is provided with a liquid inlet on one side and a liquid outlet at the lower part of the other side; and a reagent addition port (311) is provided on the top; the stirring structure (32) is arranged on the wastewater treatment tank (31) and is used to stir the liquid inside the wastewater treatment tank (31).

4. The integrated sewage treatment equipment according to claim 3 is characterized in that: The stirring structure (32) comprises a driving device (321), a stirring shaft (322) and a stirring paddle (323) arranged on the stirring shaft (322); the stirring shaft (322) is vertically arranged in the wastewater treatment tank (31), and its lower end is close to the bottom wall of the wastewater treatment tank (31); the driving device (321) is installed on the top of the wastewater treatment tank (31); the upper end of the stirring shaft (322) passes through the top wall of the wastewater treatment tank (31) and is transmission-connected to the driving device (321); the driving device (321) is used to drive the stirring shaft (322) to rotate around its axis.

5. The integrated sewage treatment equipment according to claim 4, characterized in that: The driving device (321) is a motor.

6. An integrated sewage treatment equipment according to any one of claims 1 to 5, characterized in that: The electrically controlled conveying device (7) comprises a housing (71) and a liquid pump (72). The liquid pump (72) is installed in the housing (71) and is electrically connected to a controller (73) installed in the housing (71). The liquid inlet and the liquid outlet of the liquid pump (72) are respectively connected to the second liquid discharge port and the drainage box (4) via pipelines passing through the housing (71). The water quality detector (8) is electrically connected to the controller (73). The first control valve (6) and the second control valve (9) are both electrically controlled valves connected to the controller (73). The controller (73) is used to selectively control the first control valve (6) to be turned on or the liquid pump (72) to be operated according to the detection information of the water quality detector (8).

7. The integrated sewage treatment equipment according to claim 1 or 2, characterized in that: The level of the drainage tank (4) is lower than the level of the sedimentation tank (1), the filter (2) and the secondary sewage treatment device (3).

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