A circuit board wastewater treatment tank with a hierarchical sedimentation structure
By introducing a graded sedimentation structure and a stirring and cleaning mechanism into the circuit board wastewater treatment tank, and utilizing the combined design of stirring blades and scraper blades, the problem of low purification efficiency was solved, achieving efficient removal of heavy metal ions and preventing precipitate adhesion, thus improving the purification effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI DONGYU ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-16
AI Technical Summary
Existing circuit board wastewater treatment ponds have low purification efficiency and are not thorough enough, and traditional natural sedimentation treatment methods affect the purification effect.
The system employs a graded sedimentation structure, including a coagulation sedimentation tank and a chemical treatment tank. It utilizes a stirring and cleaning mechanism and a chemical agent dosing pipe. The wastewater and chemical agents are stirred by stirring blades driven by a servo motor, causing heavy metal ions to precipitate. A sludge scraper is used to prevent the precipitate from sticking to the tank wall.
It achieves efficient sedimentation treatment, effectively removes heavy metal ions from wastewater, prevents sediment from sticking to the pool wall, and improves purification efficiency and thoroughness.
Smart Images

Figure CN224362616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board wastewater treatment technology, specifically a circuit board wastewater treatment tank with a graded sedimentation structure. Background Technology
[0002] The circuit board wastewater treatment tank with a graded sedimentation structure is a device specifically designed for the efficient treatment of wastewater generated during the circuit board manufacturing process. Through its special design, this treatment tank can achieve stratified treatment and efficient sedimentation of the waste liquid, and is particularly suitable for removing copper ions and oil components from the waste liquid.
[0003] Currently, there are many types of wastewater treatment tanks for circuit boards. For example, there is a wastewater treatment tank for circuit boards with Chinese patent number CN202323431629.5. This patent includes a purification tank, which is divided into a mixed treatment tank and a set of special treatment tanks by a partition. A diversion pipe is fixed above the purification tank by a fixing frame. An inlet pipe is fixed to one side of the upper end of the diversion pipe. An outlet pipe is fixed to the bottom of the diversion pipe and at the corresponding position of the mixed treatment tank and the special treatment tank. A connection hole is opened on the side wall of the diversion pipe and at the corresponding position of the outlet pipe. A diversion component is installed inside the diversion pipe. An inclined plate is set between the purification tank and the diversion pipe. A screen is fixed at the center of the inclined plate. This utility model uses a partition to divide the purification tank into a mixed treatment tank and multiple special treatment tanks, and performs diversion purification treatment according to the different pollutants in the circuit board, thereby achieving a high-efficiency purification effect. At the same time, a screen is set before treatment to remove foreign objects, achieving the purpose of pretreatment. However, the wastewater treatment method of this patent is largely similar to the traditional natural sedimentation treatment. This method affects the purification efficiency and is not thorough enough. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a circuit board wastewater treatment tank with a graded sedimentation structure, which has the advantage of effective sedimentation treatment and solves the problems of the patent that both affect purification efficiency and are not thorough enough.
[0005] To achieve the above-mentioned objective of effective sedimentation treatment, this utility model provides the following technical solution:
[0006] A circuit board wastewater treatment tank with a graded sedimentation structure includes a coagulation sedimentation tank and a chemical treatment tank. The left inner wall of the coagulation sedimentation tank is connected to the right inner wall of the chemical treatment tank through a U-shaped pipe. The chemical treatment tank is equipped with a stirring and cleaning mechanism inside. A chemical agent dosing pipe is fixedly inserted through the top wall of the chemical treatment tank and located to the right of the stirring and cleaning mechanism.
[0007] The stirring and cleaning mechanism includes a bearing. The bearing is fixedly installed on the inner top wall of the chemical treatment tank. A transmission rod is fixedly passed through the inner wall of the bearing. A servo motor is fixedly connected to one end of the transmission rod located outside the chemical treatment tank. Multiple stirring blades are arranged on one side of the transmission rod located inside the chemical treatment tank. Two first fixed frames and two second fixed frames are fixedly installed on the transmission rod. A scraper is fixedly connected to the side of both the first and second fixed frames away from the transmission rod.
[0008] Furthermore, the side of the scraper blade away from the transmission rod is in contact with the inner wall of the chemical treatment tank.
[0009] Furthermore, a sludge discharge pipe is installed at the bottom of the chemical treatment tank.
[0010] Furthermore, an outlet pipe is fixedly installed on the right side wall of the chemical treatment tank.
[0011] Furthermore, a circuit board wastewater inlet pipe is fixedly installed on the left side wall of the coagulation sedimentation tank.
[0012] Furthermore, a solid impurity discharge pipe is provided at the bottom of the coagulation sedimentation tank.
[0013] Furthermore, the U-shaped sleeve, U-shaped through pipe, sludge discharge pipe, circuit board wastewater inlet pipe, and solid impurity discharge pipe are all equipped with check valves.
[0014] Furthermore, a controller is fixedly installed on the front outer wall of the chemical treatment tank.
[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0016] 1. This circuit board wastewater treatment tank with a graded sedimentation structure, through the installation of a stirring and cleaning mechanism and a chemical agent dosing pipe, firstly adds chemical agents through the dosing pipe. Then, the output of a servo motor drives a transmission rod on a bearing to rotate stably. This stable rotation of the transmission rod then causes the stirring blades to agitate the wastewater and chemical agents, ensuring thorough mixing and causing heavy metal ions in the wastewater to precipitate. Finally, by installing a first fixed frame, a second fixed frame, and a scraper, the precipitate formed by heavy metal ions can be effectively prevented from adhering to the inner wall of the chemical treatment tank. Therefore, this design not only effectively purifies circuit board wastewater but also prevents precipitates from adhering to the inner wall of the chemical treatment tank, making it highly practical.
[0017] It has a strong sex drive. Attached Figure Description
[0018] Figure 1 is a schematic diagram of the structure of this utility model;
[0019] Figure 2 is a front sectional view of the structure of this utility model;
[0020] Figure 3 is a cross-sectional view of the coagulation sedimentation tank of this utility model;
[0021] Figure 4 is a cross-sectional view of the chemical treatment tank of this utility model.
[0022] In the diagram: 1. Coagulation sedimentation tank; 2. Chemical treatment tank; 3. U-shaped pipe; 4. Agitator and cleaning mechanism; 401. Bearing; 402. Transmission rod; 403. Servo motor; 404. Agitator blade; 404. First fixed frame; 406. Second fixed frame; 407. Sludge scraper; 5. Chemical agent dosing pipe; 6. Sludge discharge pipe; 7. Water outlet pipe; 8. Circuit board wastewater inlet pipe; 9. Solid impurity discharge pipe; 10. Check valve; 11. Controller. 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] Please refer to Figures 1-4. In this embodiment, a circuit board wastewater treatment tank with a graded sedimentation structure includes a coagulation sedimentation tank 1 and a chemical treatment tank 2. The left inner wall of the coagulation sedimentation tank 1 is connected to the right inner wall of the chemical treatment tank 2 through a U-shaped pipe 3. The chemical treatment tank 2 is equipped with a stirring and cleaning mechanism 4. A chemical agent dosing pipe 5 is fixedly inserted through the top wall of the chemical treatment tank 2 and located to the right of the stirring and cleaning mechanism 4.
[0025] The stirring and cleaning mechanism 4 includes a bearing 401. The bearing 401 is fixedly installed on the inner top wall of the chemical treatment tank 2. A transmission rod 402 is fixedly inserted through the inner wall of the bearing 401. A servo motor 403 is fixedly connected to one end of the transmission rod 402 located outside the chemical treatment tank 2. When chemical reagents are added through the chemical reagent dispensing pipe 5...
[0026] First, the output of the servo motor 403 drives the transmission rod 402 on the bearing 401 to rotate stably. Multiple stirring blades 404 are installed on one side of the transmission rod 402 inside the chemical treatment tank 2. The stable rotation of the transmission rod 402 causes the stirring blades 404 to stir the wastewater and chemical agents, allowing them to fully mix and causing heavy metal ions in the wastewater to precipitate. Two first fixing brackets 405 and two second fixing brackets 406 are fixedly installed on the transmission rod 402. Sludge scrapers 407 are fixedly connected to the side of both the first fixing brackets 405 and the second fixing brackets 406 away from the transmission rod 402, and the side of the sludge scrapers 407 away from the transmission rod 402 is in contact with the inner wall of the chemical treatment tank 2. Finally, by setting the first fixing brackets 405 and the second fixing brackets 406... The sludge scraper 407 can effectively prevent the precipitates formed by heavy metal ions from sticking to the inner wall of the chemical treatment tank. Therefore, this design can not only effectively purify circuit board wastewater, but also prevent precipitates from sticking to the inner wall of the chemical treatment tank, making it highly practical.
[0027] In the case implementation, a sludge discharge pipe 6 is installed at the bottom of the chemical treatment tank 2, which is designed to discharge the sludge material in the tank in a timely manner.
[0028] In the case implementation, an outlet pipe 7 is fixedly installed on the right side wall of the chemical treatment tank 2. This pipe is used to discharge the circuit board wastewater after the reaction and precipitation.
[0029] In the implementation of the case, a circuit board wastewater inlet pipe 8 is fixedly installed on the left side wall of the coagulation sedimentation tank 1. This design is used to introduce circuit board wastewater into the coagulation sedimentation tank 1.
[0030] In the case implementation, a solid impurity discharge pipe 9 is installed at the bottom of the coagulation sedimentation tank 1. This design is used to discharge solid impurities generated after the wastewater from the circuit board is settled.
[0031] In the implementation of the case, check valves 10 were installed on the U-shaped sleeve U-shaped pipe 3, sludge discharge pipe 6, circuit board wastewater inlet pipe 8, and solid impurity discharge pipe 9. This design is used to control the flow of these pipes.
[0032] In the implementation of the case, a controller 11 is fixedly installed on the front outer wall of the chemical treatment tank 2. The controller 11 and the electronic components in this patent are electrically connected by wires, which facilitates the operation of the controller 11 to control the operation of the electronic components.
[0033] When implementing this procedure, please follow these steps:
[0034] 1) First, add the chemical reagent through chemical reagent dispensing pipe 5;
[0035] 2) Then, the output of the servo motor 403 is used to drive the transmission rod 402 on the bearing 401 to generate stable rotation;
[0036] 3) The stable rotation generated by the transmission rod 402 then causes the stirring blades 404 to stir the wastewater and chemical agents, allowing them to fully mix and form precipitates;
[0037] 4) Finally, by setting the first fixing frame 405, the second fixing frame 406, and the scraper 407, it is possible to...
[0038] This effectively prevents precipitates formed by heavy metal ions from adhering to the inner wall of the chemical treatment tank 2.
[0039] In summary, this circuit board wastewater treatment tank with a graded sedimentation structure, by setting up a stirring and cleaning mechanism 4 and a chemical agent dosing pipe 5, firstly, chemical agents are added through the chemical agent dosing pipe 5. Then, the output end of the servo motor 403 drives the transmission rod 402 on the bearing 401 to generate stable rotation. The stable rotation generated by the transmission rod 402 causes the stirring blade 404 to stir the wastewater and chemical agents, allowing them to fully mix and causing heavy metal ions in the wastewater to form precipitates. Finally, by setting up a first fixing frame 405, a second fixing frame 406, and a sludge scraper 407, the precipitates formed by heavy metal ions can be effectively prevented from sticking to the inner wall of the chemical treatment tank 2. Thus, this design can not only effectively purify circuit board wastewater, but also prevent precipitates from sticking to the inner wall of the chemical treatment tank. It is highly practical and solves the problem that the wastewater treatment method of this patent is similar to the traditional natural sedimentation treatment, which affects the purification efficiency and is not thorough enough.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0041] elements.
[0042] 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 circuit board wastewater treatment tank with a graded sedimentation structure, comprising a coagulation sedimentation tank (1) and a chemical treatment tank (2), characterized in that: The left inner wall of the coagulation sedimentation tank (1) is connected to the right inner wall of the chemical treatment tank (2) through a U-shaped pipe (3). The chemical treatment tank (2) is equipped with a stirring and cleaning mechanism (4). A chemical agent dosing pipe (5) is fixedly installed on the top wall of the chemical treatment tank (2) and on the right side of the stirring and cleaning mechanism (4). The stirring and cleaning mechanism (4) includes a bearing (401). The bearing (401) is fixedly installed on the inner top wall of the chemical treatment tank (2). A transmission rod (402) is fixedly inserted through the inner wall of the bearing (401). A servo motor (403) is fixedly connected to one end of the transmission rod (402) located outside the chemical treatment tank (2). Multiple stirring blades (404) are provided on one side of the transmission rod (402) located inside the chemical treatment tank (2). Two first fixing frames (405) and two second fixing frames (406) are fixedly installed on the transmission rod (402). A scraper (407) is fixedly connected to the side of the first fixing frame (405) and the second fixing frame (406) away from the transmission rod (402).
2. The circuit board wastewater treatment tank with a graded sedimentation structure according to claim 1, characterized in that: The side of the scraper (407) away from the drive rod (402) is in contact with the inner wall of the chemical treatment tank (2).
3. The circuit board wastewater treatment tank with a graded sedimentation structure according to claim 1, characterized in that: The bottom of the chemical treatment tank (2) is equipped with a sludge discharge pipe (6).
4. The circuit board wastewater treatment tank with a graded sedimentation structure according to claim 1, characterized in that: A water outlet pipe (7) is fixedly installed on the right side wall of the chemical treatment tank (2).
5. The circuit board wastewater treatment tank with a graded sedimentation structure according to claim 1, characterized in that: A circuit board wastewater inlet pipe (8) is fixedly installed on the left side wall of the coagulation sedimentation tank (1).
6. The circuit board wastewater treatment tank with a graded sedimentation structure according to claim 1, characterized in that: The bottom of the coagulation sedimentation tank (1) is provided with a solid impurity discharge pipe (9).
7. A circuit board wastewater treatment tank with a graded sedimentation structure according to claim 1, Its features are: The U-shaped pipe (3), sludge discharge pipe (6), circuit board wastewater inlet pipe (8) and solid impurity discharge pipe (9) are all equipped with stop valves (10).
8. The circuit board wastewater treatment tank with a graded sedimentation structure according to claim 1, characterized in that: A controller (11) is fixedly installed on the front outer wall of the chemical treatment tank (2).