Wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a wastewater treatment device which comprises a treatment tank, two filter screens distributed up and down are fixedly connected in the treatment tank, a partition plate located between the two filter screens is fixedly connected in the treatment tank, and a reaction cavity is formed between the partition plate and the upper filter screen. A rotating shaft is rotationally connected to the upper end of the interior of the treatment tank, the other end of the rotating shaft penetrates through the upper filter screen and the partition plate and is rotationally connected with the lower filter screen, a plurality of stirring blades which are evenly distributed and located in the reaction cavity are fixedly connected to the outer wall of the rotating shaft, wastewater is injected into the treatment tank, and impurities in the wastewater are filtered out through the upper filter screen; wastewater penetrates through the upper filter screen to enter the reaction cavity, the rotating shaft drives the stirring blades to rotate, the reaction speed of the wastewater and a coagulant is increased, when the wastewater in the reaction cavity exceeds half, the lower filter screen fixedly filters the wastewater generated in the reaction, clear water penetrates through the lower filter screen and then is discharged from the treatment tank, and then the wastewater is treated.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a wastewater treatment device. Background Art

[0002] Wastewater treatment is the process of treating wastewater using physical, chemical and biological methods to purify the wastewater, reduce pollution, and even recycle and reuse the wastewater, make full use of water resources, separate pollutants in the wastewater or convert them into harmless substances.

[0003] The existing wastewater treatment device is basically composed of a treatment tank 1, a filter screen 2, a reaction chamber 4, a drain port 17, a sewage pipe 15 and a coagulant addition port 18. When the existing wastewater treatment device is used, according to Figure 1 As shown, the coagulant is first added into the treatment tank 1 through the coagulant addition port 18, and then the wastewater is poured into the treatment tank 1 to allow the wastewater to react with the coagulant. After the reaction is completed, the wastewater is allowed to stand for a period of time, and then the clean water is discharged through the drain port 17. After the clean water is drained, the sewage is discharged through the sewage pipe 15, thereby treating the wastewater.

[0004] During the use of the above device, solid-liquid separation requires a period of rest, resulting in low wastewater treatment efficiency. Since the wastewater contains various impurities, the filter screen 2 will be blocked when pouring wastewater into the treatment tank 1, requiring manual and uninterrupted cleaning. Utility Model Content

[0005] The utility model aims to provide a wastewater treatment device, which has the characteristics of improving wastewater treatment efficiency and automatically cleaning the filter screen.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wastewater treatment device, comprising a treatment tank, wherein two filter screens distributed up and down are fixedly connected inside the treatment tank, a partition located between the two filter screens is fixedly connected inside the treatment tank, a reaction chamber is arranged between the partition and the upper filter screen, a rotating shaft is rotatably connected to the upper end of the interior of the treatment tank, the other end of the rotating shaft passes through the upper filter screen and the partition and is rotatably connected to the lower filter screen, a plurality of stirring blades evenly distributed and located in the reaction chamber are fixedly connected to the outer wall of the rotating shaft, and a through hole is penetrated through the upper end surface of the partition.

[0007] In order to prevent impurities from clogging the filter screen, as a preferred wastewater treatment device of the utility model, the outer wall of the rotating shaft is fixedly connected to two scrapers distributed up and down and abutting against the upper end surfaces of the two filter screens.

[0008] In order to achieve intermittent and continuous addition of coagulant into the reaction chamber, as a preferred wastewater treatment device of the utility model, the left side of the outer wall of the treatment tank is connected with a pipe, the other end of the pipe is connected with a coagulant box, and a first electromagnetic valve is installed on the outer wall of the pipe.

[0009] In order to rotate the rotating shaft, as a preferred wastewater treatment device of the utility model, a motor is installed on the upper end surface of the treatment tank, and the output end of the motor passes through the treatment tank and is fixedly connected to the rotating shaft.

[0010] In order to prevent the wastewater from passing through the through hole before reacting, as a preferred wastewater treatment device of the utility model, the lower end surface of the partition is fixedly connected with a water pipe communicating with the through hole, and the outer wall of the water pipe is installed with a second electromagnetic valve.

[0011] In order to facilitate the discharge of impurities and reactants on the filter screen from the treatment tank, as a preferred wastewater treatment device of the utility model, the right side of the outer wall of the treatment tank is connected to two drain pipes distributed up and down and respectively flush with the two filter screens, and the outer walls of the two drain pipes are installed with manual valves.

[0012] In order to facilitate the discharge of the treated clean water from the treatment tank, as a preferred wastewater treatment device of the utility model, the lower end surface of the treatment tank is connected to a drain pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] First, add the coagulant into the treatment tank, and then inject the wastewater into the treatment tank. The upper filter screen will filter out the impurities in the wastewater, and the wastewater will pass through the upper filter screen into the reaction chamber. At the same time, the shaft rotates, and the shaft drives the stirring blade to rotate, which speeds up the reaction of the wastewater and the coagulant. When the wastewater in the reaction chamber exceeds half, the wastewater after the reaction falls through the through hole onto the lower filter screen. The lower filter screen will filter the solids produced by the reaction, and the clean water will pass through the lower filter screen and then be discharged from the treatment tank.

[0015] When the shaft rotates, the shaft drives the two scrapers to rotate, and the two scrapers scrape off the impurities on the two filter screens to prevent the impurities from clogging the filter screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the existing structure;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 This is a front structural schematic diagram of the utility model;

[0019] Figure 4This is a schematic diagram of the top view structure of the utility model;

[0020] In the figure: 1. treatment tank; 2. filter screen; 3. partition; 4. reaction chamber; 5. rotating shaft; 6. stirring blade; 7. through hole; 8. scraper; 9. pipeline; 10. coagulant box; 11. first solenoid valve; 12. motor; 13. water pipe; 14. second solenoid valve; 15. sewage pipe; 16. drain pipe; 17. drain outlet; 18. coagulant addition port; 19. manual valve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, in the description of the utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] See also Figures 2 to 4 A wastewater treatment device comprises a treatment tank 1, wherein two filter screens 2 distributed up and down are fixedly connected inside the treatment tank 1, a partition plate 3 located between the two filter screens 2 is fixedly connected inside the treatment tank 1, a reaction chamber 4 is arranged between the partition plate 3 and the upper filter screen 2, a rotating shaft 5 is rotatably connected to the upper end of the treatment tank 1, the other end of the rotating shaft 5 penetrates the upper filter screen 2 and the partition plate 3 and is rotatably connected to the lower filter screen 2, a plurality of stirring blades 6 evenly distributed and located in the reaction chamber 4 are fixedly connected to the outer wall of the rotating shaft 5, and a through hole 7 is penetrated through the upper end surface of the partition plate 3.

[0023] In this embodiment: first, a coagulant is added into the treatment tank 1, and then wastewater is injected into the treatment tank 1. The upper filter screen 2 filters out impurities in the wastewater, and the wastewater passes through the upper filter screen 2 into the reaction chamber 4. At the same time, the rotating shaft 5 rotates, and the rotating shaft 5 drives the stirring blade 6 to rotate, thereby accelerating the reaction speed of the wastewater and the coagulant. When the wastewater in the reaction chamber 4 exceeds half, the wastewater after the reaction falls onto the lower filter screen 2 through the through hole 7. The lower filter screen 2 filters the solids produced by the reaction, and the clean water passes through the lower filter screen 2 and is then discharged from the treatment tank 1, thereby treating the wastewater.

[0024] As a technical optimization solution of the present invention, the outer wall of the rotating shaft 5 is fixedly connected with two scrapers 8 distributed up and down and abutting against the upper end surfaces of the two filter screens 2 .

[0025] In this embodiment, when the rotating shaft 5 rotates, the rotating shaft 5 drives the two scrapers 8 to rotate, and the two scrapers 8 scrape off the impurities on the two filter screens 2 to prevent the impurities from clogging the filter screens 2.

[0026] As a technical optimization solution of the utility model, the left side of the outer wall of the processing tank 1 is connected with a pipeline 9, the other end of the pipeline 9 is connected with a coagulant box 10, and the outer wall of the pipeline 9 is installed with a first electromagnetic valve 11.

[0027] In this embodiment: when adding coagulant to the reaction chamber 4, the first electromagnetic valve 11 is opened, and the coagulant in the coagulant box 10 enters the reaction chamber 4 through the pipeline 9. The opening time of the first electromagnetic valve 11 is set to achieve intermittent and continuous addition of coagulant to the reaction chamber 4.

[0028] As a technical optimization solution of the utility model, a motor 12 is installed on the upper end surface of the processing tank 1 , and the output end of the motor 12 passes through the processing tank 1 and is fixedly connected to the rotating shaft 5 .

[0029] In this embodiment: the motor 12 is started, and the motor 12 drives the rotating shaft 5 to rotate, thereby causing the rotating shaft 5 to rotate.

[0030] As a technical optimization solution of the utility model, a water pipe 13 communicating with the through hole 7 is fixedly connected to the lower end surface of the partition 3 , and a second electromagnetic valve 14 is installed on the outer wall of the water pipe 13 .

[0031] In this embodiment, the second electromagnetic valve 14 can prevent the waste water from passing through the through hole 7 before the waste water reacts when the waste water is initially injected into the reaction chamber 4 .

[0032] As a technical optimization solution of the utility model, the right side of the outer wall of the treatment tank 1 is connected to two sewage pipes 15 distributed up and down and respectively flush with the two filter screens 2, and the outer walls of the two sewage pipes 15 are both installed with manual valves 19.

[0033] In this embodiment, the drain pipe 15 is convenient for discharging impurities and reactants on the filter screen 2 from the processing tank 1.

[0034] As a technical optimization solution of the utility model, the lower end surface of the processing tank 1 is connected to a drain pipe 16 .

[0035] In this embodiment: the drain pipe 16 is convenient for discharging the treated clean water from the treatment tank 1.

[0036] Working principle: first open the first electromagnetic valve 11, the coagulant in the coagulant box 10 enters the reaction chamber 4 through the pipeline 9, then inject wastewater into the treatment tank 1, the upper filter screen 2 filters out impurities in the wastewater, and the wastewater passes through the upper filter screen 2 into the reaction chamber 4. At the same time, start the motor 12, the motor 12 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the stirring blade 6 to rotate, so as to accelerate the reaction speed of the wastewater and the coagulant. When the wastewater in the reaction chamber 4 is filled, the second electromagnetic valve 14 is opened, and the wastewater after the reaction falls onto the lower filter screen 2 through the through hole 7 and the water pipe 13. The lower filter screen 2 filters the solids produced by the reaction, and the clean water passes through the lower filter screen 2, and then is discharged from the treatment tank 1 through the drain pipe 16;

[0037] When the rotating shaft 5 rotates, the rotating shaft 5 drives the two scrapers 8 to rotate. The two scrapers 8 scrape off the impurities on the two filter screens 2 to prevent the impurities from clogging the filter screens 2. After the clean water in the treatment tank 1 is drained, the manual valves 19 on the outer walls of the two sewage pipes 15 are opened to discharge the impurities and reactants on the filter screens 2 from the treatment tank 1 through their respective corresponding sewage pipes 15. When the scraper 8 rotates, the discharge speed of the impurities and reactants can be accelerated, thereby improving the wastewater treatment efficiency. After the impurities and reactants are drained, wastewater is injected into the treatment tank 1 again to treat the wastewater.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wastewater treatment device, comprising a treatment tank (1), characterized in that: Two filter screens (2) distributed up and down are fixedly connected inside the processing tank (1), a partition (3) located between the two filter screens (2) is fixedly connected inside the processing tank (1), a reaction chamber (4) is arranged between the partition (3) and the upper filter screen (2), a rotating shaft (5) is rotatably connected to the upper end of the processing tank (1), the other end of the rotating shaft (5) penetrates the upper filter screen (2) and the partition (3) and is rotatably connected to the lower filter screen (2), a plurality of stirring blades (6) evenly distributed and located in the reaction chamber (4) are fixedly connected to the outer wall of the rotating shaft (5), and a through hole (7) is penetrated through the upper end surface of the partition (3).

2. A wastewater treatment device according to claim 1, characterized in that: The outer wall of the rotating shaft (5) is fixedly connected to two scrapers (8) distributed up and down and abutting against the upper end surfaces of the two filter screens (2).

3. A wastewater treatment device according to claim 1, characterized in that: The left side of the outer wall of the treatment tank (1) is connected to a pipeline (9), the other end of the pipeline (9) is connected to a coagulant tank (10), and a first electromagnetic valve (11) is installed on the outer wall of the pipeline (9).

4. A wastewater treatment device according to claim 1, characterized in that: A motor (12) is installed on the upper end surface of the processing tank (1), and the output end of the motor (12) passes through the processing tank (1) and is fixedly connected to the rotating shaft (5).

5. A wastewater treatment device according to claim 1, characterized in that: The lower end surface of the partition plate (3) is fixedly connected with a water pipe (13) communicating with the through hole (7), and a second electromagnetic valve (14) is installed on the outer wall of the water pipe (13).

6. A wastewater treatment device according to claim 1, characterized in that: The right side of the outer wall of the treatment tank (1) is connected to two sewage pipes (15) which are distributed up and down and are respectively flush with the two filter screens (2), and the outer walls of the two sewage pipes (15) are both installed with manual valves (19).

7. A wastewater treatment device according to claim 1, characterized in that: The lower end surface of the treatment tank (1) is connected to a drainage pipe (16).

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