A defluorination device and an electroplating wastewater treatment system

Abstract

This utility model discloses a defluorination device and an electroplating wastewater treatment system. The defluorination device aims to solve the technical problem in existing technologies where the defluorinating agent is difficult to completely dissolve in the wastewater, resulting in insufficient time for uniform dissolution and thus affecting the defluorination effect of electroplating wastewater. It includes a base plate, with two tanks fixedly connected to the top surface of the base plate. Several guide plates are fixedly connected to the inner walls of the tanks, evenly distributed downwards. A common inlet pipe connects the two tanks, extending to both ends of the inlet pipe near the top of the tank's inner cavity. Connecting pipes are fixedly connected to the side walls of the inlet pipe; diversion plates are fixedly connected to both ends of the inlet pipe's side walls. This utility model improves the mixing uniformity of wastewater and defluorinating agent, ensuring the defluorination effect, and enables continuous wastewater treatment without shutting down the system, effectively increasing the workload of wastewater purification.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a defluorination device and an electroplating wastewater treatment system. Background Technology

[0002] In electroplating wastewater treatment, the core function of adding defluorinating agents is to remove fluoride ions (F ions) from the wastewater through chemical reactions or physical adsorption. - Remove or convert substances into insoluble substances, reducing their concentration to below emission standards.

[0003] In current methods for purifying electroplating wastewater by adding defluorinating agents, the wastewater and defluorinating agents are often mixed in a reaction tank. However, due to the large space occupied by the reaction tank and the large volume of wastewater discharge, it is difficult for the defluorinating agent to completely dissolve in the wastewater. The time for uniform dissolution between the two is short, which affects the defluorination effect of the electroplating wastewater.

[0004] Therefore, a defluorination device and an electroplating wastewater treatment system were designed to overcome the aforementioned technical deficiencies. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a defluorination device and an electroplating wastewater treatment system. The defluorination device aims to solve the technical problem that it is difficult for the defluorinating agent to completely dissolve in the wastewater when it is added, and the time for uniform dissolution between the two is short, which affects the defluorination effect of electroplating wastewater.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a defluorination device and an electroplating wastewater treatment system, including a base plate, two tanks are fixedly connected to the top surface of the base plate, a number of guide plates are fixedly connected to the inner wall of the tanks, the guide plates are evenly distributed downwards, the two tanks are connected by the same water inlet pipe, the two ends of the water inlet pipe extend to the inner cavity of the tank near the top, and a connecting pipe is fixedly connected to the side wall of the water inlet pipe.

[0009] Drainage plates are fixedly connected to the side walls of the inlet pipe near both ends;

[0010] A drainage system is installed between the two tanks, and a dispensing system is installed on the bottom plate.

[0011] Furthermore, the drainage assembly includes a drain pipe disposed between the two tanks, with the other end of the drain pipe passing through the top of the tank and extending into the inner cavity of the tank near the bottom. A connecting pipe is fixedly connected to the side wall of the drain pipe.

[0012] Furthermore, the dispensing assembly includes a reagent tank fixedly connected to the top surface of the base plate, a pump fixedly connected to the top surface of the reagent tank, the pump input end extending into the inner cavity of the reagent tank, a dispensing pipe fixedly connected to the pump output end, and a diversion pipe fixedly connected to the other end of the dispensing pipe, with both ends of the diversion pipe penetrating through the center of the top of the tank.

[0013] Furthermore, electric valves are installed at the connections between the inlet pipe and the connecting pipe, the drain pipe and the connecting pipe, and the dispensing pipe and the branch pipe.

[0014] Furthermore, multiple support rods are fixedly connected to the two ends of the water inlet pipe, and the same conical plate is fixedly connected to the top of the support rods. A through hole is opened at the center of the top of the conical plate.

[0015] Furthermore, a filling pipe is fixedly connected to the top surface of the medicine tank, and a sealing cap is threaded onto the filling pipe.

[0016] Furthermore, the guide plate has an L-shaped cross-section and is distributed in a stepped, downward arc shape around the central axis of the tank.

[0017] Furthermore, the diversion plate has a conical structure, and the edge of the diversion plate extends to the upper part of the guide plate.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This utility model, through the design of a tank, water inlet pipe, drainage component, and dosing component, adopts a dual-tank dosing method for treating electroplating wastewater by adding defluorinating agent. On the one hand, it can improve the mixing uniformity of wastewater and defluorinating agent, ensuring the defluorination effect of wastewater. On the other hand, it can achieve continuous wastewater treatment, achieving the purpose of treatment without stopping the machine, and effectively improving the workload of wastewater purification. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a partial cross-sectional view of the present invention.

[0023] Figure 3 This is a perspective view of the tank body of this utility model;

[0024] Figure 4 This is a cross-sectional structural diagram of the tank body of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the medicine box of this utility model;

[0026] Figure 6 This utility model Figure 2Enlarged view of point A in the image;

[0027] Figure 7 This utility model Figure 1 Enlarged view of point B in the image.

[0028] The markings in the attached diagram are as follows: 1. Base plate; 2. Tank body; 3. Baffle plate; 4. Inlet pipe; 5. Connecting pipe; 6. Drain pipe; 7. Connecting pipe; 8. Chemical tank; 9. Pump; 10. Dispensing pipe; 11. Diverting pipe; 12. Conical plate; 13. Support rod; 14. Through hole; 15. Drain plate; 16. Sealing cover; 17. Electric valve. Detailed Implementation

[0029] This specific embodiment is a defluorination device and an electroplating wastewater treatment system, the structural diagram of which is shown below. Figures 1-7 As shown, it includes a base plate 1, two tanks 2 are fixedly connected to the top surface of the base plate 1, and several guide plates 3 are fixedly connected to the inner wall of the tanks 2. The guide plates 3 are evenly distributed downwards. The two tanks 2 are connected by the same water inlet pipe 4. The two ends of the water inlet pipe 4 extend to the inner cavity of the tank 2 near the top. A connecting pipe 5 is fixedly connected to the side wall of the water inlet pipe 4.

[0030] Drainage plates 15 are fixedly connected to both ends of the side wall of the water inlet pipe 4;

[0031] A drainage assembly is also installed between the two tanks 2, and a dispensing assembly is also installed on the bottom plate 1.

[0032] like Figure 1 and Figure 2 As shown, the drainage assembly includes a drain pipe 6 disposed between two tanks 2. The other end of the drain pipe 6 passes through the top of the tank 2 and extends to the inner cavity of the tank 2 near the bottom. A connecting pipe 7 is fixedly connected to the side wall of the drain pipe 6.

[0033] Specifically, the structure of the drainage component inlet pipe 4 is similar, and both are connected to the two tanks 2 through a three-way pipe. In actual use, only one tank 2 is needed for wastewater treatment. When the tank 2 needs to be cleaned or maintained, the pipe can be connected to the other tank 2 through the electric valve 17 to achieve continuous wastewater treatment and improve the wastewater treatment efficiency.

[0034] like Figure 2 and Figure 5 As shown, the dispensing assembly includes a reagent tank 8 fixedly connected to the top surface of the base plate 1, a pump 9 fixedly connected to the top surface of the reagent tank 8, the input end of the pump 9 extending into the inner cavity of the reagent tank 8, and a dispensing pipe 10 fixedly connected to the output end of the pump 9. A diversion pipe 11 is fixedly connected to the other end of the dispensing pipe 10, and the two ends of the diversion pipe 11 pass through the center of the top of the tank body 2 respectively.

[0035] The defluorinating agents stored in the reagent tank 8 can include aluminum salt defluorinating agents, iron salt defluorinating agents, calcium salt defluorinating agents, and other agents. Different types of defluorinating agents are selected and used according to the fluoride concentration in the wastewater.

[0036] Electric valves 17 are installed at the connection points of the inlet pipe 4 and the connecting pipe 5, the drain pipe 6 and the connecting pipe 7, and the dispensing pipe 10 and the diversion pipe 11.

[0037] The electric valve 17 is used to control the opening and closing of multiple pipelines and the tank 2, and can also control the connection between the defluorination agent and the tank 2, which facilitates accurate dosing. In addition, the control principle of the electric valve 17 is a mature existing technology and will not be described in detail in this solution.

[0038] like Figure 6 As shown, multiple support rods 13 are fixedly connected to both ends of the water inlet pipe 4. The top of the support rods 13 is fixedly connected to the same conical plate 12, and a through hole 14 is opened at the center of the top of the conical plate 12.

[0039] The conical plate 12 is used to disperse the added agent, achieve uniform guidance, and increase the uniformity of contact with wastewater. When the pressure of wastewater discharge is low, the sewage does not come into contact with the conical plate 12 when it is sprayed out from the inlet pipe 4. At this time, some of the defluorination agent can enter the upper side of the inlet pipe 4 through the through hole 14, further increasing the mixing effect with the wastewater.

[0040] like Figure 5 As shown, a filling pipe is fixedly connected to the top surface of the reagent tank 8, and a sealing cap 16 is threaded onto the filling pipe. The filling pipe is used to add defluorination agent into the reagent tank 8, and the sealing cap 16 can protect and seal the reagent tank 8 to prevent the agent from evaporating.

[0041] like Figure 4 As shown, the cross-section of the guide plate 3 is L-shaped, and the guide plate 3 is distributed downwards in an arc shape around the central axis of the tank 2 in a stepped manner. The wastewater mixed with the defluorinating agent falls multiple times on the guide plate 3, which is conducive to promoting the exchange between wastewater and improving the dissolution efficiency of the defluorinating agent and wastewater.

[0042] like Figure 5 As shown, the diversion plate 15 has a conical structure, and its edge extends to the upper side of the guide plate 3. This facilitates the accurate diversion of wastewater into the uppermost guide plate 3, preventing wastewater from flowing directly into the bottom of the tank 2 and affecting the defluorination effect.

[0043] Working principle: First, connect the connecting pipe 5 to the external wastewater pipe to inject sewage into the tank 2. Then connect the connecting pipe 7 to the external pump 9 to discharge the water mixed with defluorinating agent. When sewage is injected into one of the tanks 2, the sewage flows from the inlet pipe 4 onto the surface of the diversion plate 15. The inclined surface of the diversion plate 15 is used to guide the sewage to multiple diversion plates 3.

[0044] At the same time, the pump 9 is started. The pump 9 delivers the defluorinating agent in the agent tank 8 to the tank body 2 through the delivery pipe 10 and the diversion pipe 11, and it falls onto the conical plate 12. It drips from the conical plate 12 onto the diversion plate 15, which is used to mix the defluorinating agent with the wastewater for the first time. If the wastewater pressure in the inlet pipe 4 is high, some wastewater can be discharged from the through hole 14 to rinse the defluorinating agent adhering to the conical plate 12.

[0045] After the initial mixing, the wastewater enters the guide plate 3. The stepped structure of multiple guide plates 3 accelerates the collision and mixing between the defluorinating agent and the wastewater, achieving the purpose of secondary mixing and effectively improving the wastewater treatment effect.

[0046] All technical features in this embodiment can be freely combined according to actual needs.

[0047] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A defluorination device, comprising a base plate (1), characterized in that: The bottom plate (1) has two tanks (2) fixedly connected to its top surface. Several guide plates (3) are fixedly connected to the inner wall of the tanks (2). The guide plates (3) are evenly distributed downwards. The two tanks (2) are connected by the same water inlet pipe (4). The two ends of the water inlet pipe (4) extend to the inner cavity of the tanks (2) near the top. A connecting pipe (5) is fixedly connected to the side wall of the water inlet pipe (4). The inlet pipe (4) has a flow guide plate (15) fixedly connected to both ends of its side wall. A drainage assembly is provided between the two tanks (2), and a dispensing assembly is provided on the bottom plate (1).

2. The defluorination device according to claim 1, characterized in that: The drainage assembly includes a drain pipe (6) disposed between two tanks (2), the other end of which passes through the top of the tank (2) and extends to the inner cavity of the tank (2) near the bottom. A connecting pipe (7) is fixedly connected to the side wall of the drain pipe (6).

3. The defluorination device according to claim 2, characterized in that: The dispensing assembly includes a medicine tank (8) fixedly connected to the top surface of the base plate (1), a pump (9) fixedly connected to the top surface of the medicine tank (8), the input end of the pump (9) extending into the inner cavity of the medicine tank (8), the output end of the pump (9) fixedly connected to a dispensing pipe (10), the other end of the dispensing pipe (10) fixedly connected to a diversion pipe (11), and the two ends of the diversion pipe (11) respectively penetrating the center position of the top of the tank body (2).

4. A defluorination device according to claim 3, characterized in that: Electric valves (17) are installed at the connection points of the inlet pipe (4) and the connecting pipe (5), the connection points of the drain pipe (6) and the connecting pipe (7), and the connection points of the dispensing pipe (10) and the diversion pipe (11).

5. A defluorination device according to claim 1, characterized in that: Multiple support rods (13) are fixedly connected to the two ends of the water inlet pipe (4). The top of the support rod (13) is fixedly connected to the same conical plate (12). A through hole (14) is opened at the center of the top of the conical plate (12).

6. A defluorination device according to claim 3, characterized in that: The top surface of the medicine box (8) is fixedly connected to a filling pipe, and a sealing cap (16) is threaded onto the filling pipe.

7. A defluorination device according to claim 1, characterized in that: The guide plate (3) has an L-shaped cross section and is arranged in a stepped manner around the central axis of the tank (2) in a downward arc.

8. A defluorination device according to claim 1, characterized in that: The diversion plate (15) has a conical structure, and the edge of the diversion plate (15) extends to the upper side of the guide plate (3).

9. An electroplating wastewater treatment system, characterized in that: Includes the defluorination device according to any one of claims 1-8.

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