coagulation and sedimentation tank

Abstract

This utility model discloses a composite coagulation and degravimetric tank, relating to the field of wastewater treatment technology. It includes a tank body with a fixed plate installed at its upper end, a partition plate one installed at the lower end of the fixed plate, and a partition plate two installed at the bottom of the tank body on one side of the partition plate one. A pre-sedimentation tank is formed between the partition plate one and the tank body; a coagulation sedimentation tank is formed between the partition plate one and the partition plate two; and a flocculation sedimentation tank is formed between the partition plate two and the tank body. Stirring rods are installed inside the pre-sedimentation tank, the coagulation sedimentation tank, and the flocculation sedimentation tank. An inclined plate sedimentation device is installed above the inside of the flocculation sedimentation tank, and a drainage tank is located above one side of the flocculation sedimentation tank. This utility model integrates the pre-sedimentation tank, the coagulation sedimentation tank, and the flocculation sedimentation tank inside the tank body. When wastewater treatment is required, the tank body only needs to be installed in the designated location, effectively improving installation and construction efficiency, reducing preparation time, and facilitating use.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a composite coagulation and degravimetric tank. Background Technology

[0002] Cement is an indispensable element of basic industry and is used in various fields. However, the hexavalent chromium contained in cement diffuses into various places such as tap water treatment ponds and our houses. As hexavalent chromium gradually leaches out, the water quality will be polluted. The wastewater is usually treated by reduction precipitation.

[0003] Currently, wastewater treatment typically requires time to construct the necessary tanks and install related equipment, necessitating extensive preparation. This approach is often geared towards large-scale wastewater treatment projects and is not suitable for smaller wastewater treatment volumes. Furthermore, the constructed tanks cannot be relocated later to meet actual usage needs, and the high construction costs make them unsuitable for some small and medium-sized enterprises. Utility Model Content

[0004] The purpose of this invention is to provide a composite coagulation and degravimetric tank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite coagulation and degravimetric tank, comprising a tank body, a fixed plate installed at the upper end of the tank body, a partition plate one installed at the lower end of the fixed plate, a partition plate two installed at the bottom end of the tank body on one side of the partition plate one, a pre-sedimentation tank formed between the partition plate one and the tank body, a coagulation sedimentation tank formed between the partition plate one and the partition plate two, and a flocculation sedimentation tank formed between the partition plate two and the tank body. A stirring rod is installed inside the pre-sedimentation tank, the coagulation sedimentation tank, and the flocculation sedimentation tank. An inclined plate sedimentation device is installed above the inside of the flocculation sedimentation tank, and a drainage tank is provided above one side of the flocculation sedimentation tank.

[0006] Preferably, both the pre-sedimentation tank and the coagulation sedimentation tank are equipped with addition pipes.

[0007] Preferably, a partition plate is installed at the lower end of the fixed plate on one side of the inclined plate sedimentation device, and the partition plate is located between the inclined plate sedimentation device and the second partition plate.

[0008] Preferably, all three stirring rods are driven by a motor, and stirring blades are installed on the surface of the stirring rods inside the pre-sedimentation tank and the coagulation sedimentation tank, while a scraper stirring frame is installed on the surface of the stirring rods inside the flocculation sedimentation tank.

[0009] Preferably, the bottom of the flocculation sedimentation tank is provided with a trough, and the bottom of the trough is connected to a sludge circulation pipe and a sludge treatment pipe via pipelines.

[0010] Preferably, the bottom of the pool body is equipped with four support blocks in a rectangular array. Each support block has an adjustment groove at one end. A connecting plate is rotatably installed inside the adjustment groove via a rotating shaft. A rotating wheel is rotatably installed at one end of the connecting plate.

[0011] Preferably, one end of the support block on one side of the connecting plate is provided with a through hole, and a limit rod is installed inside the through hole. One end of the limit rod is installed on the surface of the support block by bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This composite coagulation and degravimetric tank integrates pre-sedimentation tank, coagulation sedimentation tank and flocculation sedimentation tank into the tank body. When sewage needs to be treated, the tank body only needs to be installed in the designated location, which effectively improves the installation and construction efficiency, reduces the preparation cycle, and has a moderate treatment capacity, making it suitable for small and medium-sized enterprises.

[0014] 2. This composite coagulation and degravimetric tank is supported by support blocks, and a connecting plate is rotatably installed inside the support blocks. When the tank needs to be moved a short distance, a jack is used to push the bottom of the tank, so that the support blocks are suspended one by one. The connecting plate is rotated so that the roller on the connecting plate contacts the ground, and the limit rod is inserted into the through hole to limit and fix the connecting plate. The roller drives the tank to move, which can be easily changed according to actual needs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front sectional view of the present invention;

[0017] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 4 This is a cross-sectional view of the support block of this utility model.

[0019] In the diagram: 1. Tank body; 2. Fixed plate; 3. Second partition plate; 4. Pre-sedimentation tank; 5. Coagulation sedimentation tank; 6. Flocculation sedimentation tank; 7. Stirring rod; 8. Inclined plate sedimentation device; 9. Drainage tank; 10. Addition pipe; 11. Partition plate; 12. Stirring blade; 13. Scraper stirring frame; 14. Tank body; 15. Sludge circulation pipe; 16. Sludge treatment pipe; 17. Support block; 18. Adjustment tank; 19. Connecting plate; 20. Rotary wheel; 21. Through hole; 22. Limiting rod; 23. First partition plate. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] like Figures 1 to 4 As shown, the composite coagulation and degravimetric tank in this embodiment includes a tank body 1. A fixing plate 2 is installed at the upper end of the tank body 1, and a partition plate 23 is installed at the lower end of the fixing plate 2. A partition plate 3 is installed at the bottom end of the tank body 1 on one side of the partition plate 23. A pre-sedimentation tank 4 is formed between the partition plate 23 and the tank body 1. The pre-sedimentation tank 4 is used to mix the flocculant and the wastewater to achieve initial sedimentation. A coagulation sedimentation tank 5 is formed between the partition plate 23 and the partition plate 3. The coagulation sedimentation tank 5 is used to mix the polymeric coagulant aid and the wastewater. The partition plate 3 and the tank body 1... A flocculation sedimentation tank 6 is formed. A stirring rod 7 is installed inside the pre-sedimentation tank 4, coagulation sedimentation tank 5 and flocculation sedimentation tank 6. The stirring rod 7 stirs the sewage and the added treatment agent to achieve full mixing. An inclined plate sedimentation device 8 is installed at the top inside the flocculation sedimentation tank 6. The inclined plate sedimentation device 8 increases the sedimentation area and improves the sludge-water efficiency. The specific working principle of the inclined plate sedimentation device 8 is a known existing technology and will not be described in detail. A drainage tank 9 is set above one side of the flocculation sedimentation tank 6. The drainage tank 9 is used to discharge the treated water.

[0023] Specifically, both the pre-sedimentation tank 4 and the coagulation sedimentation tank 5 are equipped with an addition pipe 10, which is used to add the corresponding treatment agent.

[0024] Furthermore, a partition plate 11 is installed at the lower end of the fixed plate 2 on one side of the inclined plate sedimentation device 8. The partition plate 11 is located between the inclined plate sedimentation device 8 and the partition plate 2 3. The partition plate 11 plays a role in isolation, effectively preventing sewage from directly entering the upper part of the inclined plate sedimentation device 8.

[0025] Furthermore, all three stirring rods 7 are driven by motors. Stirring blades 12 are installed on the surface of the stirring rods 7 inside the pre-sedimentation tank 4 and the coagulation sedimentation tank 5. A scraper stirring frame 13 is installed on the surface of the stirring rods 7 inside the flocculation sedimentation tank 6. The stirring rods 7 and stirring blades 12 are rotated by the motor, which can realize the rapid mixing of sewage and treatment agent. The scraper stirring frame 13 is used to scrape and collect the settled sludge.

[0026] Furthermore, a tank body 14 is provided at the bottom of the flocculation sedimentation tank 6. A sludge circulation pipe 15 and a sludge treatment pipe 16 are installed at the bottom of the tank body 14 through pipes. The tank body 14 is designed to facilitate the collection of sludge. The sludge circulation pipe 15 is used to return sludge water for treatment, and the sludge treatment pipe 16 is used to discharge sludge.

[0027] Furthermore, four support blocks 17 are installed in a rectangular array at the bottom of the pool body 1. Each support block 17 has an adjustment groove 18 at one end. A connecting plate 19 is rotatably installed inside the adjustment groove 18 via a rotating shaft. A rotating wheel 20 is rotatably installed at one end of the connecting plate 19. During normal use, the support blocks 17 are in contact with the ground to support the pool body 1. When the pool body 1 needs to be moved, the rotating wheel 20 is rotated to make it contact the ground and fix it, which can then push the pool body 1 to move a short distance, making it convenient to change the usage position. This device is only used for small-scale sewage treatment and is suitable for use by some small and medium-sized enterprises.

[0028] Furthermore, one end of the support block 17 on one side of the connecting plate 19 is provided with a through hole 21. A limit rod 22 is installed inside the through hole 21. One end of the limit rod 22 is installed on the surface of the support block 17 by bolts. By inserting the limit rod 22 into the through hole 21, the vertical connecting plate 19 can be limited, so that the rotating wheel 20 is in contact with the ground, thus fixing the adjusted connecting plate 19.

[0029] The usage method of this embodiment is as follows: First, when small-scale wastewater treatment is required, the wastewater is discharged into the pre-sedimentation tank 4 through a pipe, and a certain amount of coagulant is added through the addition pipe 10 to generate flocs. The wastewater after the initial treatment enters the coagulation sedimentation tank 5, and a coagulant aid is added through the addition pipe 10 to generate large flocs. The stirring speed of the stirring blade 12 is controlled to prevent the flocs from being broken up and forming sediment. The wastewater carrying the flocs enters the flocculation sedimentation tank 6. The isolation plate 11 plays a role in isolation, preventing the wastewater carrying the flocs from being directly above the inclined plate sedimentation device 8. The scraper stirring frame 13 at the bottom of the flocculation sedimentation tank 6 continuously scrapes to promote the compression of the settled sludge. Some of the sludge is discharged through the sludge circulation pipe 1. 5. The sludge is returned to the pre-sedimentation tank 4 to ensure the required sludge concentration inside the flocculation sedimentation tank 6, promote the formation of flocs and increase floc density during flocculation. The remaining sludge is discharged through the sludge treatment pipe 16. The inclined plate sedimentation device 8 is used to remove fine flocs. The qualified water enters the drainage tank 9 from the top and is then discharged. When adjusting the position of the tank body 1, the bottom of the tank body 1 is pushed by a jack to suspend the support blocks 17 one by one. Then the connecting plate 19 is rotated so that the rotating wheel 20 on the connecting plate 19 contacts the ground, and the limiting rod 22 is inserted into the through hole 21 to limit and fix the connecting plate 19. After the movement is completed, the support block 17 is put back into contact with the ground.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A combined coagulation and ballast removal tank comprising a tank body (1), characterized in that: A fixing plate (2) is installed at the upper end of the pool body (1), a partition plate (23) is installed at the lower end of the fixing plate (2), a partition plate (3) is installed at the bottom of the pool body (1) on one side of the partition plate (23), a pre-sedimentation tank (4) is formed between the partition plate (23) and the pool body (1), a coagulation sedimentation tank (5) is formed between the partition plate (23) and the partition plate (3), a flocculation sedimentation tank (6) is formed between the partition plate (3) and the pool body (1), a stirring rod (7) is installed inside the pre-sedimentation tank (4), the coagulation sedimentation tank (5) and the flocculation sedimentation tank (6), an inclined plate sedimentation device (8) is installed above the flocculation sedimentation tank (6), and a drainage tank (9) is set above one side of the flocculation sedimentation tank (6).

2. The combined coagulation and ballast removal tank of claim 1, wherein: Both the pre-sedimentation tank (4) and the coagulation sedimentation tank (5) are equipped with an addition pipe (10).

3. The combined coagulation and ballast removal tank of claim 1, wherein: An isolation plate (11) is installed at the lower end of the fixed plate (2) on one side of the inclined plate sedimentation device (8), and the isolation plate (11) is located between the inclined plate sedimentation device (8) and the second partition plate (3).

4. The composite coagulation and degravimetric tank according to claim 1, characterized in that: All three stirring rods (7) are driven by motors. Stirring blades (12) are installed on the surface of the stirring rods (7) inside the pre-sedimentation tank (4) and the coagulation sedimentation tank (5). A scraper stirring frame (13) is installed on the surface of the stirring rods (7) inside the flocculation sedimentation tank (6).

5. The composite coagulation and degravimetric tank according to claim 1, characterized in that: The bottom of the flocculation sedimentation tank (6) is provided with a trough (14), and the bottom of the trough (14) is connected to a sludge circulation pipe (15) and a sludge treatment pipe (16) through pipes.

6. The composite coagulation and degravimetric tank according to claim 1, characterized in that: The bottom of the pool body (1) is equipped with four support blocks (17) in a rectangular array. Each support block (17) has an adjustment groove (18) at one end. A connecting plate (19) is rotatably installed inside the adjustment groove (18) via a rotating shaft. A rotating wheel (20) is rotatably installed at one end of the connecting plate (19).

7. The composite coagulation and degravimetric tank according to claim 6, characterized in that: One end of the support block (17) on one side of the connecting plate (19) is provided with a through hole (21), and a limit rod (22) is installed inside the through hole (21). One end of the limit rod (22) is installed on the surface of the support block (17) by bolts.

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