Impurity removal device for recycling tin stripping wastewater

Abstract

The utility model discloses an impurity removal device for tin stripping wastewater recovery, which relates to the technical field of tin stripping wastewater recovery and comprises a base frame, an impurity removal box is obliquely arranged at the top of the base frame from top to bottom, a liquid discharge hopper is arranged at the bottom end of the impurity removal box, and a side wall pipe is arranged at the connecting end of the impurity removal box and the liquid discharge hopper in a surrounding manner. A plurality of groups of liquid outlet holes distributed at intervals are formed in the inner wall of the side wall pipe, in the waste liquid impurity removal process, waste liquid can be pumped out of the tin liquid box in a pressurized mode through the pressure pump, the waste liquid is conveyed into the side wall pipe through the three-way pipe and the main flow hose, the waste liquid can be guided to the side wall of the liquid drainage hopper through the liquid outlet holes formed in the side wall pipe, and the waste liquid can be discharged out of the side wall of the liquid drainage hopper. By means of the device, the tin-lead alloy coating film fragments attached to the side wall of the liquid discharging hopper can be washed and cleaned, the device can wash the film fragments attached to the interior of the device while waste liquid impurity removal is conducted, the follow-up cleaning workload is greatly reduced, and the operation burden of workers is relieved.

Description

Technical Field

[0001] This utility model relates to the field of tin stripping wastewater recycling technology, specifically to a wastewater removal device for tin stripping wastewater recycling. Background Technology

[0002] Tin stripping wastewater refers to the wastewater generated during the production process of industries such as electronics, electroplating, and hardware, when removing tin plating or tin alloy plating from metal surfaces. In the production of printed circuit boards, copper-clad laminates need to be patterned by electroplating. Usually, a layer of tin-lead alloy is covered as an anti-corrosion layer in areas where electroplating is not required. Before the subsequent etching process, this tin-lead alloy layer must be removed, thus generating tin stripping wastewater.

[0003] During the tin stripping process of printed circuit boards, some tin-lead alloy plating does not completely dissolve in the tin stripping wastewater and floats in the waste liquid as solid particles. When recycling, it is first filtered through a filter plate. However, during filtration, some tin-lead alloy plating film fragments in the waste liquid adhere to the inner wall of the impurity removal mechanism as the waste liquid flows. The inner wall of the impurity removal mechanism needs to be rinsed again afterward, which increases the workload of the staff and brings many inconveniences to the recycling work.

[0004] In summary, existing wastewater removal devices for tin stripping have the problem that tin-lead alloy plating film fragments in the wastewater adhere to the inner wall of the removal mechanism, requiring secondary cleaning, which is time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this utility model is to provide a device for removing impurities from tin stripping wastewater, so as to solve the technical problem that most existing devices for removing impurities from tin stripping wastewater have tin-lead alloy plating film fragments adhering to the inner wall of the impurity removal mechanism during use, requiring secondary cleaning, which is time-consuming and labor-intensive.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A device for removing impurities from tin stripping wastewater.

[0008] Includes a base frame, on the top of which a cleaning box is inclined from top to bottom, and at the bottom of the cleaning box a drain hopper. A side wall pipe is arranged around the connection end between the cleaning box and the drain hopper, and the inner wall of the side wall pipe has several sets of spaced liquid outlet holes.

[0009] The base frame has a movable tin liquid tank that matches the drain hopper. The tin liquid tank has a support frame inside. The top of the support frame has a filter screen cover. The filter screen cover has a pressure pump inside and above the support frame. The output end of the pressure pump has a three-way pipe. One end of the three-way pipe has a main flow hose connected to the side wall pipe. The top outer side of the filter screen cover has a flushing nozzle for cleaning the filter screen cover.

[0010] Preferably, the inner walls of the two sides of the impurity removal box are symmetrically provided with side plates, the top of the side plates is provided with a support spring, and the top of the support spring is provided with a filter screen plate.

[0011] Preferably, the interior of the impurity removal box is provided with a rotating shaft, and the two ends of the rotating shaft near the inner walls on both sides of the impurity removal box are provided with cams for driving the filter screen plate to vibrate.

[0012] Preferably, a servo motor for driving the rotating shaft is provided on the outside of the impurity removal box.

[0013] Preferably, the lowest end of the impurity removal box is provided with an impurity discharge hopper, and the impurity discharge hopper completely covers the lowest end of the impurity removal box, and the impurity discharge hopper is provided with anti-collision pads relative to the inner wall of the impurity removal box.

[0014] Preferably, the top of the impurity removal box is provided with a sealed top cover, and the highest end of the sealed top cover is provided with a liquid inlet pipe.

[0015] Preferably, the base frame is internally equipped with a collection box that matches the waste discharge hopper.

[0016] Preferably, the outer top of the filter screen cover is provided with an annular frame for mounting the flushing nozzle, and the annular frame is provided with a flow channel groove around its interior.

[0017] Preferably, the outer side of the annular frame is provided with a confluence groove communicating with the flow channel groove, and the bottom of the annular frame is provided with a number of diversion grooves for connecting the flow channel groove and the flushing nozzle.

[0018] Preferably, the other end of the three-way pipe is connected to the manifold via a branch hose.

[0019] The beneficial effects of this utility model are:

[0020] 1. In this utility model, during the process of removing impurities from waste liquid, the waste liquid can be pressurized and extracted from the tin liquid tank by a pressure pump, and then transported to the side wall pipe through a three-way pipe and a main flow hose. The outlet hole on the side wall pipe can guide the waste liquid to the side wall of the drain hopper, thereby flushing and cleaning the tin-lead alloy plating film fragments attached to the side wall of the drain hopper. The device can remove impurities from waste liquid while flushing the film fragments attached to the inside of the device, which greatly reduces the amount of subsequent cleaning work and reduces the operating burden of the staff.

[0021] 2. In this invention, waste liquid is transported to the annular frame via a pressure pump, a three-way pipe, and branch hoses. Inside the annular frame, flow channels and diversion channels further transport the waste liquid to the flushing nozzles. The waste liquid sprayed from the flushing nozzles flushes the filter screen cover, thus preventing fragments of the tin-lead alloy plating film and small particles in the waste liquid from clogging the filter screen pores. This ensures the pressure pump can normally extract waste liquid, avoids dry running of the pressure pump, and further extends the service life of the pressure pump. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a three-dimensional schematic diagram of the device in this utility model;

[0024] Figure 2 This is a three-dimensional schematic diagram of the mainstream flexible hose in this utility model;

[0025] Figure 3 This is a schematic diagram of the overall structure of the device in this utility model.

[0026] Figure 4 This is a utility model Figure 3 Enlarged diagram of point A in the middle.

[0027] In the diagram: 1. Base frame; 2. Impurity removal box; 3. Side plate; 4. Support spring; 5. Filter screen plate; 6. Rotating shaft; 7. Cam; 8. Servo motor; 9. Drainage hopper; 10. Impurity removal hopper; 11. Sealed top cover; 12. Inlet pipe; 13. Side wall pipe; 14. Outlet hole; 15. Solder tank; 16. Collection box; 17. Support frame; 18. Filter screen cover; 19. Pressure pump; 20. T-connector; 21. Main flow hose; 22. Ring frame; 23. Flow channel; 24. Merging channel; 25. Diverting channel; 26. Flushing nozzle; 27. Branch hose. Detailed Implementation

[0028] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0029] like Figure 1-4 As shown, a device for removing impurities from tin stripping wastewater is provided.

[0030] The system includes a base frame 1, with a cleaning box 2 inclined downwards on the top of the base frame 1. Side plates 3 are symmetrically arranged on the inner walls of both sides of the cleaning box 2. Support springs 4 are mounted on the top of the side plates 3, and filter screen plates 5 are mounted on the top of the support springs 4. A rotating shaft 6 is rotatably mounted inside the cleaning box 2. Cams 7 for driving the filter screen plates 5 to vibrate are located at both ends of the rotating shaft 6 near the inner walls of the cleaning box 2. A servo motor 8 for driving the rotating shaft 6 to rotate is located on the outer side of the cleaning box 2. A drain hopper 9 is located at the bottom of the cleaning box 2, and a drain hopper 10 is located at the lowest point of the cleaning box 2, completely covering the lowest point of the cleaning box 2. Anti-collision pads are laid on the drain hopper 10 relative to the inner wall of the cleaning box 2. A dense... The top cover 11 is sealed, and the highest end of the top cover 11 is provided with an inlet pipe 12. The connection end between the impurity removal box 2 and the drain hopper 9 is surrounded by a side wall pipe 13. The inner wall of the side wall pipe 13 is provided with several sets of spaced outlet holes 14. The base frame 1 is movably provided with a tin liquid tank 15 that matches the drain hopper 9. The tin liquid tank 15 is provided with a support frame 17. The top of the support frame 17 is provided with a filter screen cover 18. The filter screen cover 18 is provided with a pressure pump 19, which is located above the support frame 17. The output end of the pressure pump 19 is provided with a three-way pipe 20. One end of the three-way pipe 20 is provided with a main flow hose 21 that connects to the side wall pipe 13. The top outer side of the filter screen cover 18 is provided with a tool for cleaning the filter screen cover 18. The cleaning nozzle 26 is mounted on the outer top of the filter screen cover 18, with an annular frame 22 for mounting the nozzle 26. The annular frame 22 has a flow channel 23 encircling its interior, and a confluence channel 24 communicating with the flow channel 23 on its outer side. The bottom of the annular frame 22 has several sets of branch channels 25 connecting the flow channel 23 and the cleaning nozzle 26. The other end of the three-way pipe 20 is connected to the confluence channel 24 via a branch hose 27. The base frame 1 serves as the foundation support for the entire device, providing installation positions for other structures and ensuring overall stability during operation. The inclined design of the impurity removal box 2 and filter screen 5 accelerates the natural separation of liquid and impurities, improving treatment efficiency. Furthermore, under the flushing action of the wastewater flow and the solids in the wastewater... Under the weight of their own particles, the filtered solid particles move downwards along the surface of the filter screen plate 5, thus achieving the filtration effect and reducing the probability of clogging. The support spring 4 forms an elastic support structure for the filter screen plate 5. With the rotation of the cam 7, the filter screen plate 5 can vibrate, thereby effectively accelerating the separation of solid and liquid impurities. The servo motor 8 drives the rotating shaft 6 and the cam 7 to rotate, providing vibration power to ensure continuous and efficient vibration of the filter screen plate 5. The drain hopper 9 and the impurity hopper 10 are used for the discharge of waste liquid and solid particles, respectively, to achieve liquid-solid separation. The sealed top cover 11 on the top of the impurity removal box 2 ensures the sealing during the processing and prevents waste liquid from splashing. When the waste liquid flows into the tin liquid tank 15 and submerges the pressure pump 19, the pressure pump 19 is started.At this time, the pressure pump 19 can pressurize and extract the waste liquid from the tin liquid tank 15, and transport the waste liquid to the side wall pipe 13 and the annular frame 22 through the three-way pipe 20, the main hose 21 and the branch hose 27 respectively. A filter screen cover 18 is provided on the outside of the pressure pump 19. Its pore size is extremely small, which can effectively block the tin-lead alloy plating film fragments and some fine particles in the waste liquid from entering the pressure pump 19, ensuring the normal operation of the pressure pump 19. The outlet hole 14 opened on the side wall pipe 13 can guide the waste liquid to the side wall of the drain hopper 9, thereby cleaning the tin adhering to the side wall of the drain hopper 9. The rinsing and cleaning of lead alloy plating film fragments significantly reduces the workload of subsequent cleaning and alleviates the operational burden on workers. The waste liquid is transported to the rinsing nozzle 26 via the flow channel 23 and diversion channel 25 inside the ring frame 22. The waste liquid sprayed from the rinsing nozzle 26 rinses the filter screen cover 18, thus preventing tin-lead alloy plating film fragments and small particles in the waste liquid from clogging the filter pores of the filter screen cover 18. This ensures that the pressure pump 19 can normally extract waste liquid, avoids dry running of the pressure pump 19, and further extends the service life of the pressure pump 19.

[0031] In this embodiment, specifically, the base frame 1 is movably provided with a collection box 16 that matches the discharge hopper 10. The collection box 16 is used to collect the discharged solid particles.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A device for removing impurities from tin stripping wastewater, characterized in that: Includes a base frame (1), the top of the base frame (1) is inclined from top to bottom and a cleaning box (2) is provided, the bottom end of the cleaning box (2) is provided with a drain hopper (9), the connection end of the cleaning box (2) and the drain hopper (9) is surrounded by a side wall pipe (13), and the inner wall of the side wall pipe (13) is provided with several sets of spaced liquid outlet holes (14); The base frame (1) is equipped with a tin liquid tank (15) that matches the drain hopper (9). The tin liquid tank (15) is equipped with a support frame (17). The top of the support frame (17) is equipped with a filter screen cover (18). The filter screen cover (18) is equipped with a pressure pump (19) and is located above the support frame (17). The output end of the pressure pump (19) is equipped with a three-way pipe (20). One end of the three-way pipe (20) is equipped with a main flow hose (21) that is connected to the side wall pipe (13). The top outer side of the filter screen cover (18) is equipped with a flushing nozzle (26) for cleaning the filter screen cover (18).

2. The impurity removal device for tin stripping wastewater recovery according to claim 1, characterized in that, The two inner walls of the impurity removal box (2) are symmetrically provided with side plates (3), and the top of the side plates (3) is provided with a support spring (4), and the top of the support spring (4) is provided with a filter screen plate (5).

3. The impurity removal device for tin stripping wastewater recovery according to claim 2, characterized in that, The impurity removal box (2) is equipped with a rotating shaft (6) inside. The two ends of the rotating shaft (6) near the inner walls on both sides of the impurity removal box (2) are equipped with cams (7) for driving the filter screen plate (5) to vibrate.

4. The impurity removal device for tin stripping wastewater recovery according to claim 3, characterized in that, The outside of the impurity removal box (2) is provided with a servo motor (8) for driving the rotating shaft (6) to rotate.

5. The impurity removal device for tin stripping wastewater recovery according to claim 1, characterized in that, The lowest end of the impurity removal box (2) is provided with an impurity discharge hopper (10), and the impurity discharge hopper (10) completely covers the lowest end of the impurity removal box (2). The impurity discharge hopper (10) is provided with anti-collision pads relative to the inner wall of the impurity removal box (2).

6. The impurity removal device for tin stripping wastewater recovery according to claim 1, characterized in that, The top of the impurity removal box (2) is provided with a sealing top cover (11), and the highest end of the sealing top cover (11) is provided with a liquid inlet pipe (12).

7. The impurity removal device for tin stripping wastewater recovery according to claim 5, characterized in that, The base frame (1) is internally equipped with a collection box (16) that matches the waste discharge hopper (10).

8. The impurity removal device for tin stripping wastewater recovery according to claim 1, characterized in that, The top outer side of the filter screen cover (18) is provided with an annular frame (22) for installing the flushing nozzle (26), and the annular frame (22) is provided with a flow channel groove (23) around its interior.

9. A device for removing impurities from tin stripping wastewater according to claim 8, characterized in that, The outer side of the annular frame (22) is provided with a confluence groove (24) that communicates with the flow channel groove (23), and the bottom of the annular frame (22) is provided with a number of diversion grooves (25) for connecting the flow channel groove (23) and the flushing nozzle (26).

10. A device for removing impurities from tin stripping wastewater according to claim 9, characterized in that, The other end of the three-way pipe (20) is connected to the manifold (24) via a branch hose (27).

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