Phosphorus removal equipment for tail water of sewage treatment plant

Abstract

The utility model relates to sewage treatment technical field discloses a kind of tail water phosphorus removal equipment of sewage treatment plant, including phosphorus removal jar, the phosphorus removal jar top is fixedly connected with dosing opening, the phosphorus removal jar top is fixedly connected with into tail water pipe, the phosphorus removal jar outside is fixedly connected with support frame, multiple heating pipes are installed in the phosphorus removal jar, the phosphorus removal jar is internally provided with stirring scraping component, the filter component is provided in the phosphorus removal jar bottom, the filter component outside is provided with fixed component, the stirring scraping component includes support, the support outside is fixedly connected in the phosphorus removal jar top, motor is fixedly connected in the support outside. In the utility model, by the cooperation between motor, shell, stirring rod, scraper and spring one and other structures, the phosphide adhered to the inner wall of phosphorus removal jar and other reaction precipitates are removed in time, avoid its in tank wall accumulation influence equipment internal space and reaction environment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a phosphorus removal device for wastewater treatment plant effluent. Background Technology

[0002] Wastewater refers to wastewater from domestic and industrial activities that has been polluted to some extent. It is classified by source into domestic sewage, industrial wastewater, and agricultural wastewater. Wastewater often contains pollutants such as organic matter, heavy metals, and pathogenic microorganisms. If discharged directly without treatment, it will pollute water bodies and soil, harm the ecological environment and human health, and must be treated to meet standards before discharge or reuse.

[0003] In the prior art, a phosphorus removal device for wastewater effluent often fails to effectively remove phosphates and other reaction precipitates adhering to the inner wall of the phosphorus removal tank. Over time, these substances accumulate on the tank wall, not only occupying internal space of the equipment but also affecting the reaction environment.

[0004] To address the above problems, a phosphorus removal device for wastewater treatment plant effluent is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a phosphorus removal device for wastewater treatment plant effluent, aiming to improve the problem that existing wastewater treatment plant effluent phosphorus removal devices often fail to effectively remove phosphates and other reaction precipitates adhering to the inner wall of the phosphorus removal tank. Over time, these substances accumulate on the tank wall, not only occupying internal space of the equipment but also affecting the reaction environment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a phosphorus removal device for wastewater treatment plant effluent, comprising a phosphorus removal tank, a dosing port fixedly connected to the top of the phosphorus removal tank, an inlet effluent pipe fixedly connected to the top of the phosphorus removal tank, a support frame fixedly connected to the outside of the phosphorus removal tank, multiple heating pipes installed inside the phosphorus removal tank, a stirring and scraping assembly provided inside the phosphorus removal tank, a filter assembly provided at the bottom of the phosphorus removal tank, and a fixing assembly provided outside the filter assembly;

[0007] The stirring and scraping assembly includes a bracket, which is fixedly connected to the top of the dephosphorization tank on its outer side. A motor is fixedly connected to the outer side of the bracket, and a stirring rod is fixedly connected to the output end of the motor. Multiple outer shells are fixedly connected to the outer side of the stirring rod. A limit plate is slidably connected inside the outer shell. Multiple springs are fixedly connected to one side of the limit plate, and a scraper is fixedly connected to the other side of the limit plate.

[0008] As a further description of the above technical solution:

[0009] The filtration assembly includes an outlet pipe, the top of which is fixedly connected to the middle side of the bottom of the phosphorus removal tank. A filter box is fixedly connected to the outside of the outlet pipe, a filter screen is slidably connected inside the filter box, a discharge pipe is fixedly connected to the bottom of the filter box, and a valve is provided on the outside of the outlet pipe.

[0010] As a further description of the above technical solution:

[0011] The fixing assembly includes two thin shells. The outer side of the thin shell is fixedly connected to the outer side of the filter box. A pull rod is slidably connected inside the thin shell. A baffle is fixedly connected to the outer side of the pull rod. A spring is sleeved on the outer side of the pull rod. A U-shaped plate is fixedly connected to the top of the thin shell. An L-shaped plate is provided on the top of the baffle.

[0012] As a further description of the above technical solution:

[0013] One end of the spring away from the limiting plate is fixedly connected to the inner wall of the outer shell, and the scraper abuts against the inner wall of the dephosphorization tank.

[0014] As a further description of the above technical solution:

[0015] The scraper is slidably connected to the inner wall of the outer casing on its outer side.

[0016] As a further description of the above technical solution:

[0017] One end of the second spring is fixedly connected to the outside of the baffle, and the other end of the second spring is fixedly connected to the inner wall of the thin shell.

[0018] As a further description of the above technical solution:

[0019] The outer side of the baffle is slidably connected to the inner wall of the thin shell, and the outer side of the pull rod is inserted into the inside of the filter screen.

[0020] As a further description of the above technical solution:

[0021] The upper outer side of the L-shaped plate is slidably connected to the inner wall of the U-shaped plate, and the lower outer side of the L-shaped plate is slidably connected to the inside of the thin shell.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the motor starts and drives the stirring rod to rotate. The outer shell fixed to the outside of the stirring rod rotates accordingly. Under the action of the spring, the scraper always keeps in contact with the inner wall of the dephosphorization tank. As the stirring rod rotates, the scraper scrapes the inner wall of the dephosphorization tank, realizing the timely removal of phosphates and other reaction precipitates attached to the inner wall of the dephosphorization tank, and avoiding their accumulation on the tank wall, which affects the internal space of the equipment and the reaction environment.

[0024] 2. In this utility model, by pulling the pull rod to remove it from the filter screen, compressing the second spring, and sliding the L-shaped plate into the thin shell to prevent the pull rod from resetting, the filter screen can be removed for cleaning or replacement; after replacement, pulling up the L-shaped plate, the second spring pushes the baffle to drive the pull rod to re-insert the filter screen, realizing easy disassembly, cleaning and replacement of the filter screen without the need for complicated tools, simplifying the filter screen maintenance process, shortening equipment maintenance time, and effectively reducing maintenance difficulty. Attached Figure Description

[0025] Figure 1 This is a perspective view of a phosphorus removal device for wastewater effluent from a wastewater treatment plant, as proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a filter screen for phosphorus removal equipment in wastewater treatment plant effluent, as proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of a spring in a wastewater effluent phosphorus removal device proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the structure of spring 2 in a phosphorus removal device for wastewater effluent from a wastewater treatment plant, as proposed in this utility model.

[0029] Legend:

[0030] 1. Phosphorus removal tank; 2. Chemical dosing port; 3. Inlet and outlet water pipe; 4. Support frame; 5. Motor; 6. Stirring rod; 7. Outer shell; 8. Limiting plate; 9. Scraper; 10. Spring 1; 11. Heating tube; 12. Support frame; 13. Outlet pipe; 14. Valve; 15. Filter box; 16. Discharge pipe; 17. Filter screen; 18. Thin shell; 19. U-shaped plate; 20. L-shaped plate; 21. Baffle; 22. Pull rod; 23. Spring 2. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-4A phosphorus removal device for wastewater effluent from a wastewater treatment plant includes a phosphorus removal tank 1, a chemical dosing port 2 fixedly connected to the top of the phosphorus removal tank 1, an inlet effluent pipe 3 fixedly connected to the top of the phosphorus removal tank 1, a support frame 12 fixedly connected to the outside of the phosphorus removal tank 1, multiple heating pipes 11 installed inside the phosphorus removal tank 1, a stirring and scraping assembly installed inside the phosphorus removal tank 1, a filter assembly installed at the bottom of the phosphorus removal tank 1, and a fixing assembly installed outside the filter assembly.

[0033] The stirring and scraping assembly includes a bracket 4, which is fixedly connected to the top of the dephosphorization tank 1. A motor 5 is fixedly connected to the outside of the bracket 4. A stirring rod 6 is fixedly connected to the output end of the motor 5. Multiple outer shells 7 are fixedly connected to the outside of the stirring rod 6. A limit plate 8 is slidably connected inside the outer shell 7. Multiple springs 10 are fixedly connected to one side of the limit plate 8, and a scraper 9 is fixedly connected to the other side of the limit plate 8.

[0034] Specifically, the dephosphorization tank 1 is used to contain the wastewater and carry out the dephosphorization reaction; the dosing port 2 is used to add dephosphorization agents; the wastewater inlet pipe 3 is used to introduce the wastewater to be treated; the support frame 12 is used to support and fix the dephosphorization tank 1; the heating pipe 11 is used to heat the wastewater in the dephosphorization tank 1 to increase the dephosphorization reaction rate; in the stirring and scraping assembly, the bracket 4 is used to fix the motor 5, the motor 5 is used to drive the stirring rod 6 to rotate, the stirring rod 6 and the outer shell 7 are used to stir and mix the wastewater and the agent, the spring 10 is used to provide elasticity so that the scraper 9 always contacts the inner wall of the dephosphorization tank 1, and the scraper 9 is used to scrape off the phosphates attached to the inner wall of the dephosphorization tank 1. In the filtration assembly, outlet pipe 13 is used to discharge the treated tailwater, valve 14 is used to control the flow of tailwater, filter box 15 is used to install filter screen 17 and provide filtration space, filter screen 17 is used to trap solid impurities generated by the reaction, and discharge pipe 16 is used to discharge the filtered tailwater; in the fixing assembly, thin shell 18 is used to accommodate related components, U-shaped plate 19 and L-shaped plate 20 are used to fix pull rod 22, baffle 21 is used to connect pull rod 22 and work with spring 23, spring 23 is used to provide elasticity, and pull rod 22 is used to insert into filter screen 17 to achieve fixation, which facilitates the disassembly and installation of filter screen 17.

[0035] Reference Figure 2 The filter assembly includes an outlet pipe 13, the top of which is fixedly connected to the bottom of the dephosphorization tank 1, a filter box 15 is fixedly connected to the outside of the outlet pipe 13, a filter screen 17 is slidably connected inside the filter box 15, a discharge pipe 16 is fixedly connected to the bottom of the filter box 15, and a valve 14 is provided on the outside of the outlet pipe 13.

[0036] Specifically, outlet pipe 13 is used to discharge the treated tailwater from phosphorus removal tank 1 to filter box 15; valve 14 is used to control the flow and shut-off of tailwater in outlet pipe 13; filter box 15 is used to provide installation space for filter screen 17 and to centrally filter tailwater; filter screen 17 is used to intercept solid impurities generated by the reaction in tailwater to achieve tailwater purification; discharge pipe 16 is used to discharge the purified tailwater filtered by filter screen 17.

[0037] Reference Figure 4 The fixing assembly includes two thin shells 18. The outer side of the thin shell 18 is fixedly connected to the outer side of the filter box 15. The inner side of the thin shell 18 is slidably connected to a pull rod 22. The outer side of the pull rod 22 is fixedly connected to a baffle 21. A spring 23 is sleeved on the outer side of the pull rod 22. A U-shaped plate 19 is fixedly connected to the top of the thin shell 18. An L-shaped plate 20 is provided on the top of the baffle 21.

[0038] Specifically, the thin shell 18 provides space for the pull rod 22, spring 23, and other components and fixes them to the outside of the filter box 15; the pull rod 22 is inserted into the filter screen 17 to limit and fix the filter screen 17; the baffle 21 connects the pull rod 22 and works with the spring 23 to realize the extension and retraction of the pull rod 22; the spring 23 provides elasticity to keep the pull rod 22 in the fixed state of being inserted into the filter screen 17; the U-shaped plate 19 works with the L-shaped plate 20 to limit the pull rod 22 a second time; the L-shaped plate 20 is inserted into the U-shaped plate 19 and the thin shell 18 to prevent the pull rod 22 from resetting under the action of the spring 23, which facilitates the disassembly of the filter screen 17, and assists the pull rod 22 in fixing the filter screen 17 during reverse operation.

[0039] Reference Figures 1-4 One end of spring 10 away from the limiting plate 8 is fixedly connected to the inner wall of the outer shell 7. Scraper 9 abuts against the inner wall of the descaling tank 1. The outer side of scraper 9 is slidably connected to the inner wall of the outer shell 7. One end of spring 23 is fixedly connected to the outer side of baffle 21. The other end of spring 23 is fixedly connected to the inner wall of thin shell 18. The outer side of baffle 21 is slidably connected to the inner wall of thin shell 18. The outer side of pull rod 22 is inserted into the inside of filter screen 17. The upper outer side of L-shaped plate 20 is slidably connected to the inner wall of U-shaped plate 19. The lower outer side of L-shaped plate 20 is slidably connected to the inside of thin shell 18.

[0040] Specifically, spring 10 provides elastic force to keep scraper 9 in contact with the inner wall of descaling tank 1; limiting plate 8 slides within housing 7 and cooperates with spring 10 to limit the range of movement of scraper 9; housing 7 accommodates limiting plate 8, spring 10, and scraper 9, and rotates with stirring rod 6 to drive internal components; scraper 9 scrapes off phosphates and impurities adhering to the inner wall of descaling tank 1; spring 23 provides elastic force to keep pull rod 22 in a fixed position inserted into filter screen 17; baffle 21 connects pull rod 22 and slides within thin shell 18. The pull rod 22 is extended and retracted in conjunction with the second spring 23. The thin shell 18 is used to house the pull rod 22, baffle 21, and the second spring 23, and is fixed to the outside of the filter box 15. The pull rod 22 is inserted into the filter screen 17 to limit and fix the filter screen 17. The U-shaped plate 19 is used to cooperate with the L-shaped plate 20 to limit the pull rod 22 for a second time. The L-shaped plate 20 is inserted into the U-shaped plate 19 and the thin shell 18 to prevent the pull rod 22 from resetting under the action of the second spring 23, which facilitates the disassembly of the filter screen 17. In the reverse operation, it assists the pull rod 22 in fixing the filter screen 17.

[0041] Working principle: When the phosphorus removal equipment for wastewater treatment plant effluent is running, the effluent flows into the phosphorus removal tank 1 through the effluent inlet pipe 3. At the same time, the reagent is added into the phosphorus removal tank 1 through the dosing port 2. The motor 5 starts, driving the stirring rod 6 to rotate. The outer casing 7 fixed to the outside of the stirring rod 6 rotates accordingly. Under the action of the spring 10, the scraper 9 always maintains contact with the inner wall of the phosphorus removal tank 1. As the stirring rod 6 rotates, the scraper 9 scrapes the inner wall of the phosphorus removal tank 1 to prevent phosphates from adhering to the tank wall. At the same time, the stirring rod 6 drives the effluent and reagent to mix thoroughly, accelerating the reaction.

[0042] During the mixing reaction, multiple heating pipes 11 inside the phosphorus removal tank 1 heat the tailwater to increase the reaction rate. After the reaction is completed, valve 14 is opened, and the treated tailwater flows into the filter box 15 through the outlet pipe 13. It is filtered through the filter screen 17 to trap the solid impurities generated in the reaction, and the filtered tailwater is discharged from the discharge pipe 16.

[0043] When the filter screen 17 needs to be cleaned or replaced, pull the lever 22 to pull it out from inside the filter screen 17. The spring 23 is compressed. At this time, slide the L-shaped plate 20 from the U-shaped plate 19 into the thin shell 18. Under the action of the spring 23, push the baffle 21 to drive the lever 22 to re-insert into the filter screen 17. Then the filter screen 17 can be taken out for cleaning or replacement. After replacement, pull the L-shaped plate 20 upward. Under the action of the spring 23, push the baffle 21 to drive the lever 22 to re-insert into the filter screen 17, and fix the filter screen 17.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A phosphorus removal device for wastewater effluent from a wastewater treatment plant, comprising a phosphorus removal tank (1), characterized in that: The top of the phosphorus removal tank (1) is fixedly connected to a chemical dosing port (2), the top of the phosphorus removal tank (1) is fixedly connected to an inlet water pipe (3), the outside of the phosphorus removal tank (1) is fixedly connected to a support frame (12), multiple heating pipes (11) are installed inside the phosphorus removal tank (1), a stirring and scraping assembly is installed inside the phosphorus removal tank (1), a filter assembly is installed at the bottom of the phosphorus removal tank (1), and a fixing assembly is installed on the outside of the filter assembly; The stirring and scraping assembly includes a bracket (4), which is fixedly connected to the top of the dephosphorization tank (1) on the outside. A motor (5) is fixedly connected to the outside of the bracket (4). A stirring rod (6) is fixedly connected to the output end of the motor (5). Multiple outer shells (7) are fixedly connected to the outside of the stirring rod (6). A limiting plate (8) is slidably connected inside the outer shell (7). Multiple springs (10) are fixedly connected to one side of the limiting plate (8). A scraper (9) is fixedly connected to the other side of the limiting plate (8).

2. The phosphorus removal equipment for wastewater treatment plant effluent according to claim 1, characterized in that: The filter assembly includes an outlet pipe (13), the top of which is fixedly connected to the bottom of the phosphorus removal tank (1), a filter box (15) is fixedly connected to the outside of the outlet pipe (13), a filter screen (17) is slidably connected inside the filter box (15), a discharge pipe (16) is fixedly connected to the bottom of the filter box (15), and a valve (14) is provided on the outside of the outlet pipe (13).

3. The phosphorus removal equipment for wastewater treatment plant effluent according to claim 2, characterized in that: The fixing assembly includes two thin shells (18). The outer side of the thin shell (18) is fixedly connected to the outer side of the filter box (15). A pull rod (22) is slidably connected inside the thin shell (18). A baffle (21) is fixedly connected to the outer side of the pull rod (22). A spring (23) is sleeved on the outer side of the pull rod (22). A U-shaped plate (19) is fixedly connected to the top of the thin shell (18). An L-shaped plate (20) is provided on the top of the baffle (21).

4. The phosphorus removal equipment for wastewater treatment plant effluent according to claim 1, characterized in that: The spring (10) is fixedly connected to the inner wall of the outer shell (7) at the end away from the limiting plate (8), and the scraper (9) abuts against the inner wall of the dephosphorization tank (1).

5. The phosphorus removal equipment for wastewater treatment plant effluent according to claim 1, characterized in that: The scraper (9) is slidably connected to the inner wall of the outer casing (7) on the outside.

6. The phosphorus removal equipment for wastewater effluent from a wastewater treatment plant according to claim 3, characterized in that: One end of the second spring (23) is fixedly connected to the outside of the baffle (21), and the other end of the second spring (23) is fixedly connected to the inner wall of the thin shell (18).

7. The phosphorus removal equipment for wastewater treatment plant effluent according to claim 3, characterized in that: The outer side of the baffle (21) is slidably connected to the inner wall of the thin shell (18), and the outer side of the pull rod (22) is inserted into the inside of the filter screen (17).

8. The phosphorus removal equipment for wastewater treatment plant effluent according to claim 3, characterized in that: The upper outer side of the L-shaped plate (20) is slidably connected to the inner wall of the U-shaped plate (19), and the lower outer side of the L-shaped plate (20) is slidably connected to the inside of the thin shell (18).

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