A wastewater heavy metal chelation precipitation reaction device
By installing pretreatment components in the sedimentation tank, the problem of lack of pretreatment in wastewater heavy metal chelation precipitation reaction devices was solved, achieving effective pretreatment of wastewater and enhancing the precipitation reaction, thereby improving treatment efficiency and effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN RUIXING ZHIYUAN TECHNOLOGY CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-14
AI Technical Summary
Existing wastewater heavy metal chelation precipitation reactors lack effective pretreatment steps during the treatment process, resulting in wastewater directly entering the sedimentation tank and affecting the treatment effect.
Pretreatment components are installed inside the sedimentation tank, including pretreatment pipes, sewage inlet pipes, chemical inlet pipes, filters, aeration pipes, and protective curtains, to achieve pre-filtration, aeration mixing, and shielding of wastewater, thereby improving the treatment effect.
By setting up pretreatment components, effective pretreatment of wastewater is achieved, removing most impurities, improving the efficiency and effectiveness of sedimentation reaction, and reducing the impact of external factors on the sedimentation tank.
Smart Images
Figure CN224493883U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater heavy metal chelation precipitation reaction device. Background Technology
[0002] With the continuous advancement of industrialization, the electroplating industry in my country has developed rapidly. Electroplating wastewater contains a large amount of heavy metal ions, which pollute the environment. Chelation precipitation method is used to convert heavy metal ions in wastewater into precipitates through oxidation and chelation reactions, thereby achieving the purpose of wastewater treatment. By adding oxidants, such as hydrogen peroxide or ozone, to the wastewater, the heavy metal ions in the wastewater undergo an oxidation reaction and are converted into precipitates. Then, chelating agents, such as ethylenediaminetetraacetic acid, are added to chelate the heavy metal ions in the wastewater, stabilizing them into water-soluble complexes, which then precipitate. This device is the wastewater heavy metal chelation precipitation reaction device.
[0003] In the process of treating heavy metal chelation precipitation in wastewater, the wastewater directly enters the interior of the sedimentation tank, resulting in poor pretreatment of the wastewater.
[0004] Therefore, a wastewater heavy metal chelation precipitation reactor is needed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a wastewater heavy metal chelation precipitation reaction device to solve the problem mentioned in the background art that the wastewater heavy metal chelation precipitation reaction device is not convenient for pretreatment of wastewater.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a wastewater heavy metal chelation precipitation reaction device, comprising a sedimentation tank and a sludge discharge pipe. A sludge discharge pipe is installed at the bottom right side of the sedimentation tank. A pretreatment component is installed at the top inside the sedimentation tank. The pretreatment component includes a pretreatment pipe, a wastewater inlet pipe, a chemical inlet pipe, a sealing cap, a bottom groove, a filter screen, a ring, an electric push rod, a boss, a sewage discharge pipe, and a sealing plate. A pretreatment pipe is installed at the top inside the sedimentation tank. A wastewater inlet pipe is fixed to the left side of the pretreatment pipe. A chemical inlet pipe is fixed to the left side of the top of the pretreatment pipe. A sealing cap is threaded to the top of the chemical inlet pipe. A bottom groove is provided on the surface of the bottom end of the pretreatment pipe. A filter screen is installed inside the bottom groove. A ring is movably installed on the outside of the pretreatment pipe. An electric push rod is installed at the top of the ring. A boss is fixed to the top of the pretreatment pipe. The right output end of the electric push rod is fixedly connected to the left side of the boss. A sewage discharge pipe is fixed to the right side of the pretreatment pipe. A sealing plate is provided on the right side of the sewage discharge pipe.
[0007] As a further technical solution of this utility model, several pretreatment pipes are installed at the top of the sedimentation tank, and the several pretreatment pipes are distributed in parallel.
[0008] As a further technical solution of this utility model, the cross-section of the pretreatment pipe and the ring is annular, and the cross-section of the ring is larger than the cross-section of the bottom groove.
[0009] As a further technical solution of this utility model, the sewage pipe is provided with internal threads, and the sealing plate is provided with external threads.
[0010] As a further technical solution of this utility model, an installation groove is provided on the surface of the top end of the pretreatment pipe, an aeration pipe is installed inside the installation groove, the bottom end of the aeration pipe extends into the interior of the pretreatment pipe, and a connecting pipe is installed at the top end of the aeration pipe.
[0011] As a further technical solution of this utility model, two sets of installation grooves are provided on the surface of the top end of the pre-treatment pipe, and the two sets of installation grooves are symmetrically distributed.
[0012] As a further technical solution of this utility model, a top plate is fixed on both sides of the top of the sedimentation tank, and guide rods are installed on both ends of the inner side of the top plate.
[0013] As a further technical solution of this utility model, a movable ring is movably installed on the outer side of the guide rod, and a protective curtain is fixed on the inner side of the movable ring.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a pretreatment pipe, wastewater enters the interior of the pretreatment pipe through the sewage inlet pipe. While staying inside the pretreatment pipe, it can be treated by adding drugs through the drug inlet pipe. After mixing, the electric push rod can be activated, and the auxiliary ring can slide along the pretreatment pipe. After the bottom trough on the bottom side is opened, it can flow into the interior of the sedimentation tank for sedimentation treatment. The filter screen located inside the bottom trough can pre-filter the wastewater during this process, treating larger impurities in the wastewater, thus realizing the pretreatment function of the wastewater heavy metal chelation precipitation reaction device.
[0015] By installing an aeration pipe, which is inserted into the pretreatment pipe through the installation groove, it can be connected to the aeration equipment. Gas enters the pretreatment pipe through the aeration pipe, which can assist in the aeration treatment of the liquid inside the pretreatment pipe and assist in the mixing of the liquid with the chemicals, thus realizing the aeration and mixing function when the wastewater heavy metal chelation precipitation reaction device is used.
[0016] By installing a protective curtain located at the opening above the sedimentation tank, the movable ring slides along the guide rod to unfold the protective curtain and lay it at the opening above the sedimentation tank. With the help of the protective curtain, the sedimentation tank can be shielded, reducing the impact of the outside world on the sedimentation tank. This achieves the auxiliary shielding function when using the wastewater heavy metal chelation and precipitation reaction device. Attached Figure Description
[0017] Figure 1 This is a frontal cross-sectional view of the present invention.
[0018] Figure 2 This is a top view of the structure of this utility model;
[0019] Figure 3 This is a front view cross-sectional structural diagram of the pretreatment pipeline of this utility model;
[0020] Figure 4 This is a front view cross-sectional structural diagram of the protective curtain of this utility model.
[0021] In the diagram: 1. Sedimentation tank; 2. Sludge discharge pipe; 3. Pretreatment pipe; 4. Sewage inlet pipe; 5. Chemical inlet pipe; 6. Sealing cap; 7. Bottom tank; 8. Filter screen; 9. Ring sleeve; 10. Electric push rod; 11. Boss; 12. Sewage discharge pipe; 13. Sealing plate; 14. Installation groove; 15. Aeration pipe; 16. Connecting pipe; 17. Top plate; 18. Guide rod; 19. Moving ring; 20. Protective curtain. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-4This utility model provides an embodiment of a wastewater heavy metal chelation precipitation reaction device, comprising a sedimentation tank 1 and a sludge discharge pipe 2. The sludge discharge pipe 2 is installed at the bottom right side of the sedimentation tank 1. A pretreatment component is installed at the top inside the sedimentation tank 1. The pretreatment component includes a pretreatment pipe 3, a sewage inlet pipe 4, a chemical inlet pipe 5, a sealing cap 6, a bottom tank 7, a filter screen 8, a ring sleeve 9, an electric push rod 10, a boss 11, a sewage discharge pipe 12, and a sealing plate 13. Several pretreatment pipes 3 are installed at the top inside the sedimentation tank 1, and these pipes 3 are arranged in parallel. The sewage inlet pipe 4 is fixed to the left side of the pretreatment pipe 3. A drug inlet pipe 5 is fixed, and a sealing cap 6 is threadedly connected to the top of the drug inlet pipe 5. A bottom groove 7 is provided on the surface of the bottom end of the pretreatment pipe 3. A filter screen 8 is installed inside the bottom groove 7. A ring sleeve 9 is movably installed on the outside of the pretreatment pipe 3. The cross-section of the pretreatment pipe 3 and the ring sleeve 9 is annular. The cross-section of the ring sleeve 9 is larger than the cross-section of the bottom groove 7. An electric push rod 10 is installed at the top of the ring sleeve 9. A boss 11 is fixed at the top of the pretreatment pipe 3. The right output end of the electric push rod 10 is fixedly connected to the left side of the boss 11. A sewage pipe 12 is fixed on the right side of the pretreatment pipe 3. A sealing plate 13 is provided on the right side of the sewage pipe 12. The sewage pipe 12 has internal threads, and the sealing plate 13 has external threads on its surface.
[0024] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, during use, multiple sets of pretreatment pipes 3 are laid flat above the interior of the sedimentation tank 1. Wastewater can enter the interior of the pretreatment pipes 3 through the wastewater inlet pipe 4. During this process, chemical treatment can be added to the interior of the pretreatment pipes 3 with the help of the chemical inlet pipe 5. Activating the electric push rod 10 can drive the ring sleeve 9 to open the inner bottom trough 7. Wastewater flows through the bottom trough 7 into the interior of the sedimentation tank 1 for sedimentation treatment. The filter screen 8 located inside the bottom trough 7 can pre-filter the wastewater during this process, treating larger impurities in the wastewater. Periodically, with the bottom trough 7 closed, the sewage pipe 12 can be opened. After the cleaning liquid is introduced into the wastewater inlet pipe 4, it is discharged through the sewage pipe 12. The liquid in the flow channel is used to flush the interior of the pretreatment pipes 3 and clean the interior of the pretreatment pipes 3.
[0025] The surface of the top end of the pretreatment pipe 3 is provided with an installation groove 14. There are two sets of installation grooves 14 on the surface of the top end of the pretreatment pipe 3. The two sets of installation grooves 14 are symmetrically distributed. An aeration pipe 15 is installed inside the installation groove 14. The bottom end of the aeration pipe 15 extends into the interior of the pretreatment pipe 3. A connecting pipe 16 is installed at the top end of the aeration pipe 15.
[0026] Specifically, such as Figure 1 and Figure 3As shown, when in use, after the aeration pipe 15 is connected to the aeration equipment through the connecting pipe 16, it can assist in the aeration treatment of the sewage inside the pretreatment pipe 3, thereby helping the sewage and the added drugs to be mixed better.
[0027] Both sides of the top of the sedimentation tank 1 are fixed with a top plate 17. Both ends of the inner side of the top plate 17 are equipped with guide rods 18. A movable ring 19 is movably installed on the outer side of the guide rod 18. A protective curtain 20 is fixed on the inner side of the movable ring 19.
[0028] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, when in use, the moving ring 19 slides along the guide rod 18, and the protective curtain 20 can be laid flat at the upper opening of the sedimentation tank 1. With the help of the protective curtain 20, the impact of the surrounding environment on the interior of the sedimentation tank 1 can be reduced, and the impact of the sedimentation tank 1 on the surrounding environment can also be reduced.
[0029] Working principle: During use, multiple sets of pretreatment pipes 3 are laid flat at the top of the sedimentation tank 1. Sewage can be introduced through the sewage inlet pipe 4. A chemical inlet pipe 5 is installed at the top of the pretreatment pipes 3, through which chemicals can be added for chelation treatment of the sewage. The aeration pipe 15 is connected to the aeration equipment through the connecting pipe 16, which can assist in the aeration treatment of the sewage inside the pretreatment pipes 3 and assist in the mixing of chemicals and sewage. Activating the electric push rod 10 can push the ring 9 to open the bottom tank 7. The filter screen 8 located inside the bottom tank 7 can pre-filter the sewage during this process, removing larger impurities in the sewage. The sewage inside the multiple sets of pretreatment pipes 3 flows into the sedimentation tank 1 for sedimentation treatment. During the sedimentation process, the sliding ring 19 can be moved to lay the protective curtain 20 flat at the top opening of the sedimentation tank 1. The protective curtain 20 can help reduce the impact of the surrounding environment on the inside of the sedimentation tank 1 and also help reduce the impact of the sedimentation tank 1 on the surrounding environment.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A wastewater heavy metal chelation precipitation reaction device, comprising a sedimentation tank (1) and a sludge discharge pipe (2), characterized in that: A sludge discharge pipe (2) is installed at the bottom right side of the sedimentation tank (1), and a pretreatment component is installed at the top inside the sedimentation tank (1). The pretreatment assembly includes a pretreatment pipe (3), a sewage inlet pipe (4), a chemical inlet pipe (5), a sealing cap (6), a bottom tank (7), a filter screen (8), a ring sleeve (9), an electric push rod (10), a boss (11), a sewage discharge pipe (12), and a sealing plate (13). The pretreatment pipe (3) is installed at the top of the sedimentation tank (1). The sewage inlet pipe (4) is fixed to the left side of the pretreatment pipe (3). The chemical inlet pipe (5) is fixed to the left side of the top of the pretreatment pipe (3). The sealing cap (6) is threaded to the top of the chemical inlet pipe (5). The surface of the bottom end of the pretreatment pipe (3) is provided with a bottom groove (7), and a filter screen (8) is installed inside the bottom groove (7). A ring sleeve (9) is movably installed on the outside of the pretreatment pipe (3). An electric push rod (10) is installed at the top of the ring sleeve (9). A boss (11) is fixed at the top of the pretreatment pipe (3). The right output end of the electric push rod (10) is fixedly connected to the left side of the boss (11). A sewage pipe (12) is fixed on the right side of the pretreatment pipe (3). A sealing plate (13) is provided on the right side of the sewage pipe (12).
2. The wastewater heavy metal chelation precipitation reaction device according to claim 1, characterized in that: Several pretreatment pipes (3) are installed at the top of the sedimentation tank (1), and the several pretreatment pipes (3) are distributed in parallel.
3. The wastewater heavy metal chelation precipitation reaction device according to claim 1, characterized in that: The pretreatment pipe (3) and the ring (9) have annular cross-sections, and the cross-section of the ring (9) is larger than the cross-section of the bottom groove (7).
4. The wastewater heavy metal chelation precipitation reaction device according to claim 1, characterized in that: The sewage pipe (12) has internal threads, and the sealing plate (13) has external threads on its surface.
5. The wastewater heavy metal chelation precipitation reaction device according to claim 1, characterized in that: The surface of the top end of the pretreatment pipe (3) is provided with an installation groove (14), and an aeration pipe (15) is installed inside the installation groove (14). The bottom end of the aeration pipe (15) extends into the interior of the pretreatment pipe (3), and a connecting pipe (16) is installed at the top end of the aeration pipe (15).
6. The wastewater heavy metal chelation precipitation reaction device according to claim 5, characterized in that: The mounting groove (14) is provided in two sets on the surface of the top end of the pretreatment pipe (3), and the two sets of mounting grooves (14) are symmetrically distributed.
7. The wastewater heavy metal chelation precipitation reaction device according to claim 1, characterized in that: The sedimentation tank (1) has a top plate (17) fixed on both sides of the top, and guide rods (18) are installed on both ends of the inner side of the top plate (17).
8. The wastewater heavy metal chelation precipitation reaction device according to claim 7, characterized in that: A movable ring (19) is movably installed on the outer side of the guide rod (18), and a protective curtain (20) is fixed on the inner side of the movable ring (19).