Municipal sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment, and in particular relates to a municipal sewage treatment device which is provided with a switchable sewage filtering mechanism, so that the maintenance of a filter screen without influencing the sewage treatment process is realized, and the practicability is improved; comprising a sewage treatment tank, a connecting frame, a three-way valve, an input pipe, an output branch pipe, an internal thread cover, a filter screen guide frame, a sewage filter screen, an external thread opening, an on-off valve and a water drainage pipe, the front side of the sewage treatment tank is connected with the rear side of the three-way valve through the connecting frame, and the input side of the three-way valve is communicated with the inner side of the input pipe; two groups of output sides of the three-way valve are respectively communicated with the inner sides of a group of internal thread covers through a group of output branch pipes, a sewage filter screen is detachably arranged on the inner side of a filter screen guide frame, the top end of the filter screen guide frame is connected with the bottom end of an external thread opening, and the outer side of the external thread opening is detachably screwed with the inner sides of the internal thread covers; the bottom end of the opening and closing valve is communicated with the top end of the drainage pipe; a dosing mechanism and a stirring mechanism are arranged on the sewage treatment tank.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment, specifically to a municipal sewage treatment device. Background Technology

[0002] Municipal wastewater treatment refers to the process of treating wastewater generated by urban residents in their daily lives, commercial activities, and industrial production. This wastewater includes domestic sewage, industrial wastewater, and stormwater runoff. Domestic sewage mainly originates from daily activities in homes, schools, hospitals, office buildings, etc., such as washing, cooking, and excretion. Industrial wastewater comes from various industrial enterprises within the city, such as chemical, pharmaceutical, electronics, textile, and food processing industries. Stormwater runoff is wastewater formed by rain or snow washing over urban surfaces and may contain pollutants such as dust, garbage, oil, and heavy metals from roads.

[0003] An existing municipal sewage treatment tank, such as the one with patent publication number CN215691956U, changes the traditional method of installing the filter screen inside the tank to the current method of installing the filter screen on the outside of the tank. This avoids having to enter the inside of the tank to replace the filter screen, making the replacement of the filter screen more convenient and quick.

[0004] However, in practice, cleaning the filter screen affects the wastewater treatment process, making it impractical. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, this utility model provides a municipal sewage treatment device with a switchable sewage filtration mechanism, which enables filter maintenance without affecting the sewage treatment process and improves practicality.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a municipal sewage treatment device, comprising a sewage treatment tank, a connecting frame, a three-way valve, an input pipe, an output branch pipe, an internally threaded cover, a filter screen guide frame, a sewage filter screen, an externally threaded port, an on / off valve, and a drain pipe. The front side of the sewage treatment tank is connected to the rear side of the three-way valve via the connecting frame. The input side of the three-way valve is connected to the inner side of the input pipe. The two output sides of the three-way valve are respectively connected to the inner side of a set of internally threaded covers via a set of output branch pipes. The left and right sides of the front top of the sewage treatment tank are respectively connected to the bottom end of a set of filter screen guide frames. A sewage filter screen is detachably installed inside the filter screen guide frame. The top of the filter screen guide frame is connected to the bottom end of the externally threaded port. The outer side of the externally threaded port is detachably screwed to the inner side of the internally threaded cover. The middle part of the bottom end of the sewage treatment tank is connected to the top of the on / off valve. The bottom end of the on / off valve is connected to the top of the drain pipe. A dosing mechanism and a stirring mechanism are provided on the sewage treatment tank.

[0009] Preferably, it also includes a handle, wherein one side of the outer end of the internal threaded cap is connected to the inner side of the handle.

[0010] Preferably, the system also includes a support frame and a base, wherein the bottom end of the sewage treatment tank is connected to the top of a set of support frames at the front and rear sides respectively, and the bottom end of each set of support frames is connected to the middle of the top of a set of bases.

[0011] Preferably, the dosing mechanism includes an injection cylinder, a dosing tube, a piston, a connecting rod, and a pull plate. The input side at the top center of the wastewater treatment tank is connected to the output side at the bottom of the injection cylinder. The dosing tube is connected to the input side of the injection cylinder. The inner side of the injection cylinder is slidably connected to the outer side of the piston. The top center of the piston is connected to the bottom center of the pull plate via the connecting rod.

[0012] Preferably, it also includes a one-way valve, with a set of one-way valves respectively provided at the input and output ends of the syringe.

[0013] Preferably, the stirring mechanism includes a stirring drive motor, a reducer, a stirring shaft, and stirring blades. The middle rear side of the sewage treatment tank is connected to the inner side of the reducer. The input end of the reducer is connected to the output end of the stirring drive motor. The output end of the reducer is connected to the rear side of the stirring shaft. The reducer is longitudinally rotatably connected to the middle side inside the sewage treatment tank. Multiple sets of stirring blades are connected to the outer side of the stirring shaft.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a municipal sewage treatment device, which has the following features:

[0016] Beneficial effects:

[0017] The wastewater filter screen is installed inside the filter screen guide frame, and two sets of internal threaded caps are screwed and sealed to the outside of the external threaded opening. The input pipe is connected to the wastewater source. The three-way valve is adjusted to connect the input pipe to a set of output branch pipes. Wastewater is introduced into the set of output branch pipes through the input pipe and the three-way valve, and then flows into the wastewater treatment tank through the filter screen guide frame. Impurities are filtered in the wastewater filter screen. When cleaning is required, the three-way valve is operated to connect the input pipe to another set of output branch pipes. The internal threaded caps can be screwed off to remove the filter screen. The wastewater is then removed and further treated in the wastewater treatment tank by the dosing and stirring mechanisms. After opening the on / off valve, the wastewater can be discharged through the drain pipe. A switchable wastewater filtration mechanism is provided to achieve filter screen maintenance without affecting the wastewater treatment process, thus improving practicality. Attached Figure Description

[0018] Figure 1 This is an axial view illustrating the structure of this utility model.

[0019] Figure 2 This utility model Figure 1 Top view;

[0020] Figure 3 This utility model Figure 1 The right view;

[0021] Figure 4 This utility model Figure 1 Rear view.

[0022] The following are labels in the attached diagram: 1. Wastewater treatment tank; 2. Connecting frame; 3. Three-way valve; 4. Inlet pipe; 5. Outlet branch pipe; 6. Internal threaded cap; 7. Filter screen guide frame; 8. Wastewater filter screen; 9. External threaded port; 10. Handle plate; 11. Support; 12. Base; 13. Injector; 14. Drug inlet pipe; 15. Piston; 16. Connecting rod; 17. Pull plate; 18. One-way valve; 19. Stirring drive motor; 20. Reducer; 21. Stirring shaft; 22. Stirring blade; 23. On / off valve; 24. Drain pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Please see Figure 1-4A municipal sewage treatment device includes a sewage treatment tank 1, a connecting frame 2, a three-way valve 3, an inlet pipe 4, an outlet branch pipe 5, an internally threaded cover 6, a filter screen guide frame 7, a sewage filter screen 8, an externally threaded port 9, an on / off valve 23, and a drain pipe 24. The front side of the sewage treatment tank 1 is connected to the rear side of the three-way valve 3 via the connecting frame 2. The inlet side of the three-way valve 3 is connected to the inner side of the inlet pipe 4. The two outlet sides of the three-way valve 3 are each connected to the inner side of a set of internally threaded covers 6 via a set of outlet branch pipes 5. The top front left and right sides of the sewage treatment tank 1 are respectively connected to the bottom ends of a set of filter screen guide frames 7. A sewage filter screen 8 is detachably installed inside the filter screen guide frame 7. The top of the filter screen guide frame 7 is connected to the bottom end of the externally threaded port 9. The outer side of the externally threaded port 9 is detachably screwed to the inner side of the internally threaded cover 6. The middle of the bottom end of the sewage treatment tank 1 is connected to the top of the on / off valve 23. The bottom end of the on / off valve 23 is connected to... The top of the drain pipe 24 is connected. The sewage treatment tank 1 is equipped with a dosing mechanism and a stirring mechanism. The sewage filter screen 8 is installed in the filter screen guide frame 7, and two sets of internal threaded caps 6 are screwed and sealed on the outside of the external threaded opening 9. The sewage source is connected to the input end of the input pipe 4. The three-way valve 3 is adjusted to connect the input pipe 4 with a set of output branch pipes 5. The sewage is introduced into the set of output branch pipes 5 through the input pipe 4 and the three-way valve 3, and then enters the sewage treatment tank 1 through the filter screen guide frame 7. Impurities are filtered in the sewage filter screen 8. When cleaning is required, the three-way valve 3 is operated to connect the input pipe 4 with another set of output branch pipes 5. The internal threaded caps 6 can be screwed off on the outside of the external threaded opening 9 and the sewage filter screen 8 can be taken out. The sewage is further treated in the sewage treatment tank 1 by the dosing mechanism and the stirring mechanism. After opening the on / off valve 23, the sewage can be discharged through the drain pipe 24.

[0026] It also includes a handle 10, and one side of the outer end of the internal threaded cover 6 is connected to the inner side of the handle 10; by pinching the handle 10, the internal threaded cover 6 can be rotated, which facilitates screwing and unscrewing and improves convenience.

[0027] It also includes a support 11 and a base 12. The bottom front and rear sides of the sewage treatment tank 1 are respectively connected to the top of a set of support 11, and the bottom of each set of support 11 is respectively connected to the middle of the top of a set of bases 12. The sewage treatment tank 1 is supported by the support 11 working together to improve stability by fixing the ground with the two sets of bases 12.

[0028] The mixing mechanism includes a mixing drive motor 19, a reducer 20, a mixing shaft 21, and mixing blades 22. The middle rear side of the sewage treatment tank 1 is connected to the inner side of the reducer 20. The input end of the reducer 20 is connected to the output end of the mixing drive motor 19, and the output end of the reducer 20 is connected to the rear side of the mixing shaft 21. The reducer 20 is longitudinally rotatably connected to the middle side inside the sewage treatment tank 1. Multiple sets of mixing blades 22 are connected to the outer side of the mixing shaft 21. When the mixing drive motor 19 is running, the reducer 20 can reduce the speed, causing the multiple sets of mixing blades 22 to move, accelerating the uniform mixing of sewage and chemicals, and improving convenience.

[0029] Example 2

[0030] Please see Figure 1-4 A municipal sewage treatment device includes a sewage treatment tank 1, a connecting frame 2, a three-way valve 3, an inlet pipe 4, an outlet branch pipe 5, an internally threaded cover 6, a filter screen guide frame 7, a sewage filter screen 8, an externally threaded port 9, an on / off valve 23, and a drain pipe 24. The front side of the sewage treatment tank 1 is connected to the rear side of the three-way valve 3 via the connecting frame 2. The inlet side of the three-way valve 3 is connected to the inner side of the inlet pipe 4. The two outlet sides of the three-way valve 3 are each connected to the inner side of a set of internally threaded covers 6 via a set of outlet branch pipes 5. The top front left and right sides of the sewage treatment tank 1 are respectively connected to the bottom ends of a set of filter screen guide frames 7. A sewage filter screen 8 is detachably installed inside the filter screen guide frame 7. The top of the filter screen guide frame 7 is connected to the bottom end of the externally threaded port 9. The outer side of the externally threaded port 9 is detachably screwed to the inner side of the internally threaded cover 6. The middle of the bottom end of the sewage treatment tank 1 is connected to the top of the on / off valve 23. The bottom end of the on / off valve 23 is connected to... The top of the drain pipe 24 is connected. The sewage treatment tank 1 is equipped with a dosing mechanism and a stirring mechanism. The sewage filter screen 8 is installed in the filter screen guide frame 7, and two sets of internal threaded caps 6 are screwed and sealed on the outside of the external threaded opening 9. The sewage source is connected to the input end of the input pipe 4. The three-way valve 3 is adjusted to connect the input pipe 4 with a set of output branch pipes 5. The sewage is introduced into the set of output branch pipes 5 through the input pipe 4 and the three-way valve 3, and then enters the sewage treatment tank 1 through the filter screen guide frame 7. Impurities are filtered in the sewage filter screen 8. When cleaning is required, the three-way valve 3 is operated to connect the input pipe 4 with another set of output branch pipes 5. The internal threaded caps 6 can be screwed off on the outside of the external threaded opening 9 and the sewage filter screen 8 can be taken out. The sewage is further treated in the sewage treatment tank 1 by the dosing mechanism and the stirring mechanism. After opening the on / off valve 23, the sewage can be discharged through the drain pipe 24.

[0031] The dosing mechanism includes a syringe 13, a dosing tube 14, a piston 15, a connecting rod 16, and a pull plate 17. The input side at the top center of the wastewater treatment tank 1 is connected to the output side at the bottom of the syringe 13. The dosing tube 14 is connected to the input side of the syringe 13. The inner side of the syringe 13 is slidably connected to the outer side of the piston 15. The top center of the piston 15 is connected to the bottom center of the pull plate 17 via the connecting rod 16. By holding the pull plate 17, the piston 15 can slide inside the syringe 13 via the connecting rod 16. When sliding upward, it creates a negative pressure inside the syringe 13, introducing the agent through the dosing tube 14. When sliding downward, it pressurizes and outputs the agent into the wastewater treatment tank 1, achieving precise dosing and improving convenience.

[0032] It also includes a one-way valve 18. A set of one-way valves 18 is provided at the input end and the output end of the syringe 13 respectively. The one-way valves 18 can conduct one-way flow between the input and output of the syringe 13, avoid backflow, and improve reliability.

[0033] The three-way valve 3, one-way valve 18, stirring drive motor 19, reducer 20 and on / off valve 23 are commercially available devices known to those skilled in the art. We are simply using them here without making any structural or functional improvements, and we will not elaborate further on them here.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A municipal sewage treatment apparatus, characterised in that, The system includes a wastewater treatment tank (1), a connecting frame (2), a three-way valve (3), an inlet pipe (4), an outlet branch pipe (5), an internal threaded cover (6), a filter screen guide frame (7), a wastewater filter screen (8), an external threaded port (9), an on / off valve (23), and a drain pipe (24). The front side of the wastewater treatment tank (1) is connected to the rear side of the three-way valve (3) via the connecting frame (2). The inlet side of the three-way valve (3) is connected to the inside of the inlet pipe (4). The two outlet sides of the three-way valve (3) are respectively connected to the inside of an internal threaded cover (6) via an outlet branch pipe (5). The top front left and right sides of the sewage treatment tank (1) are connected to the bottom of a set of filter screen guide frames (7). A sewage filter screen (8) is detachably installed inside the filter screen guide frame (7). The top of the filter screen guide frame (7) is connected to the bottom of the external threaded port (9). The outer side of the external threaded port (9) is detachably screwed to the inner side of the internal threaded cover (6). The middle part of the bottom of the sewage treatment tank (1) is connected to the top of the on / off valve (23). The bottom of the on / off valve (23) is connected to the top of the drain pipe (24). The sewage treatment tank (1) is equipped with a dosing mechanism and a stirring mechanism.

2. A municipal sewage treatment plant according to claim 1, characterised in that: It also includes a handle (10), one side of the outer end of the internal threaded cap (6) is connected to the inner side of the handle (10).

3. The municipal sewage treatment device according to claim 1, characterized in that: It also includes a bracket (11) and a base (12). The bottom end of the sewage treatment tank (1) is connected to the top of a set of brackets (11) at the front and back sides respectively, and the bottom end of each set of brackets (11) is connected to the middle of the top of a set of bases (12).

4. The municipal sewage treatment device according to claim 1, characterized in that: The dosing mechanism includes an injection cylinder (13), a drug inlet pipe (14), a piston (15), a connecting rod (16), and a pull plate (17). The top middle input side of the sewage treatment tank (1) is connected to the bottom output side of the injection cylinder (13). The injection cylinder (13) is connected to the drug inlet pipe (14). The inner side of the injection cylinder (13) is slidably connected to the outer side of the piston (15). The top middle of the piston (15) is connected to the bottom middle of the pull plate (17) via the connecting rod (16).

5. A municipal sewage treatment plant according to claim 4, characterised in that: It also includes a one-way valve (18), and a set of one-way valves (18) are respectively provided at the input end and the output end of the syringe (13).

6. The municipal sewage treatment device according to claim 1, characterized in that: The stirring mechanism includes a stirring drive motor (19), a reducer (20), a stirring shaft (21), and stirring blades (22). The middle rear side of the sewage treatment tank (1) is connected to the inner side of the reducer (20). The input end of the reducer (20) is connected to the output end of the stirring drive motor (19). The output end of the reducer (20) is connected to the rear side of the stirring shaft (21). The reducer (20) is longitudinally rotatably connected to the middle side inside the sewage treatment tank (1). Multiple sets of stirring blades (22) are connected to the outer side of the stirring shaft (21).

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