Pretreatment device for recycling and reusing electroplating bath waste liquid

Abstract

The utility model relates to the technical field of electroplating bath waste liquid treatment, in particular to an electroplating bath waste liquid recycling pretreatment device which comprises a recycling main box, the left side of the recycling main box is fixedly connected with a side box, the top of the side box is provided with a pre-filtering square box, and the left side of the pre-filtering square box is communicated with a liquid inlet pipe. According to the electroplating bath waste liquid recycling and reusing pretreatment device, through the arrangement of the side square box, the pre-filtering square box, the first filter screen, the second filter screen, the third filter screen and the fourth filter screen, the electroplating bath waste liquid recycling and reusing pretreatment device can be conveniently used for recycling and reusing electroplating waste liquid before recycling and treating the electroplating waste liquid; under the connecting action of the side square box and the pre-filtering square box, impurities such as particles, metal and suspended solids in the electroplating waste liquid are filtered and intercepted through a multi-stage pretreatment structure, and the situation that the interior of the water pump body is prone to pollution and a port is prone to being blocked due to long-time frequent direct conveying of the impurities is avoided.

Description

Technical Field

[0001] This utility model relates to the field of electroplating tank waste liquid treatment technology, specifically to a pretreatment device for recycling and reusing electroplating tank waste liquid. Background Technology

[0002] When electroplating waste liquid is generated during the electroplating process, it contains a large amount of precious metals (such as gold, silver, platinum, etc.) and other useful components. By recycling and reusing the treated waste liquid for production or other purposes, resource waste can be reduced and production costs can be lowered. Moreover, by recycling and reusing the electroplating tank waste liquid, the emission of harmful substances can also be effectively reduced, thus reducing the negative impact on the environment.

[0003] Currently, the recycling and reuse of electroplating tank waste liquid typically involves pumping the waste liquid into a recycling tank for centralized treatment. However, considering that electroplating waste liquid may contain impurities such as solid particles (e.g., metal scraps, undissolved lumps), suspended solids (e.g., tiny metal particles), and organic matter, larger particles or higher concentrations of impurities can easily contaminate and clog the pump and inlet / outlet pipes during the actual recycling and reuse process. This can affect the normal operation of the pump and hinder the entire recycling and reuse process. Therefore, to address these issues, a pretreatment device for recycling and reusing electroplating tank waste liquid is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a pretreatment device for recycling and reusing waste liquid from electroplating tanks, so as to solve the problem mentioned in the background art that impurities easily contaminate the inside of the pump body and easily clog the pump port during the recycling and reuse of existing waste liquid from electroplating tanks.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pretreatment device for recycling and reusing electroplating tank waste liquid includes a main recycling tank, a side tank fixedly connected to the left side of the main recycling tank, a pre-filter box on the top of the side tank, an inlet pipe connected to the left side of the pre-filter box, a first sealing top cover fixedly installed on the top of the pre-filter box, a first filter screen, a second filter screen, a third filter screen and a fourth filter screen sequentially fitted onto the bottom of the first sealing top cover from left to right, a central connecting rod fixedly connected to the first sealing top cover in the gap between the second filter screen and the third filter screen, a conical plug fixedly connected to the bottom of the central connecting rod, a guide port connected to the inside of the side tank at the middle of the bottom of the pre-filter box, and sealing strips glued to the bottom of the first filter screen, the second filter screen, the third filter screen and the fourth filter screen.

[0007] Preferably, a second sealed top cover is fixedly installed on the top of the main recycling box, a drain pipe is connected to the lower right position of the main recycling box, the height of the main recycling box is less than the height of the side box, and a sewage outlet is connected to the left side of the side box.

[0008] Preferably, a water pump body is fixedly installed on the top left side of the second sealing top cover, and the outlet end of the water pump body is connected to a transition bend. The transition bend has an "L" shaped structure, and a filter screen cylinder extending into the main recovery box is fixedly installed at the bottom of the second sealing top cover.

[0009] Preferably, the bottom of the sealing strip is fitted to the inclined surface on the lower left and right sides of the inner side of the pre-filter box, the inner end of the flow guide and the outer end of the conical plug are dimensionally matched, and the lower end of the conical plug extends to the inner side of the flow guide.

[0010] Preferably, the heights of the first filter screen and the fourth filter screen are equal, the heights of the second filter screen and the third filter screen are equal, the liquid outlet of the pre-filter box is connected to the liquid inlet of the water pump body, and the first, second, third and fourth filters are arranged in parallel to each other.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the side box, pre-filter box, first filter, second filter, third filter, and fourth filter facilitate the pretreatment device for recycling and reusing electroplating tank waste liquid. Before recycling the electroplating waste liquid, the multi-stage pretreatment structure composed of the first, second, third, and fourth filters, connected by the side box and pre-filter box, filters and intercepts impurities such as particles, metals, and suspended solids in the electroplating waste liquid. This prevents these impurities from being directly transported for a long time, which could easily cause contamination inside the pump body and blockage at the ports. This ensures the normal operation of the pump body and facilitates the smooth progress of the entire recycling and reuse process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the internal structure of the main recycling box, the pre-filter box, and the side box of this utility model.

[0015] Figure 3 This is a schematic diagram of the sealing strip installation structure of this utility model.

[0016] In the diagram: 1. Main recovery tank; 2. Side tank; 3. Pre-filter box; 4. Inlet pipe; 5. First sealing top cover; 6. First filter screen; 7. Second filter screen; 8. Central connecting rod; 9. Third filter screen; 10. Fourth filter screen; 11. Guide port; 12. Conical plug; 13. Pump body; 14. Adapter bend; 15. Second sealing top cover; 16. Filter screen cylinder; 17. Drain pipe; 18. Sewage outlet; 19. Sealing strip. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3 This utility model provides a technical solution:

[0019] A pretreatment device for recycling and reusing waste liquid from electroplating tanks includes a main recycling tank 1, a side tank 2 fixedly connected to the left side of the main recycling tank 1, a pre-filter box 3 on the top of the side tank 2, an inlet pipe 4 connected to the left side of the pre-filter box 3, a first sealing top cover 5 fixedly installed on the top of the pre-filter box 3, a first filter screen 6, a second filter screen 7, a third filter screen 9 and a fourth filter screen 10 sequentially fitted onto the bottom of the first sealing top cover 5 from left to right, a central connecting rod 8 fixedly connected to the first sealing top cover 5 in the gap between the second filter screen 7 and the third filter screen 9, a conical plug 12 fixedly connected to the bottom of the central connecting rod 8, a guide port 11 connected to the inside of the side tank 2 at the middle position of the bottom of the pre-filter box 3, and sealing strips 19 glued to the bottom of the first filter screen 6, the second filter screen 7, the third filter screen 9 and the fourth filter screen 10.

[0020] like Figure 1 and Figure 2As shown, a second sealing top cover 15 is fixedly installed on the top of the main recycling tank 1. A drain pipe 17 is connected to the lower right position of the main recycling tank 1. The height of the main recycling tank 1 is less than the height of the side tank 2. A sewage outlet 18 is connected to the left side position of the side tank 2. With the interconnection, the recycled waste liquid can be sent to the waste liquid reuse pipeline through the drain pipe 17. A water pump body 13 is fixedly installed on the top left side of the second sealing top cover 15. The outlet end of the water pump body 13 is connected to a transition bend 14. The transition bend 14 has an "L" shaped structure. A filter screen 16 extending into the main recycling box 1 is fixedly installed at the bottom of 15. When the waste liquid enters the main recycling box 1 through the transfer bend 14, the device will perform a pre-recycling filtration process through the filter screen 16. The bottom of the sealing strip 19 is fitted to the inclined surface on the lower left and right sides of the inner side of the pre-filter box 3. The inner end of the guide port 11 and the outer end of the conical plug 12 are matched in size. The lower end of the conical plug 12 extends into the inner side of the guide port 11. The pre-filter box 3 seals the guide port 11 to prevent waste liquid from entering the interior of the side box 2.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the height of the first filter screen 6 is equal to the height of the fourth filter screen 10, and the height of the second filter screen 7 is equal to the height of the third filter screen 9. The liquid outlet of the pre-filter box 3 is connected to the liquid inlet of the water pump body 13. The first filter screen 6, the second filter screen 7, the third filter screen 9 and the fourth filter screen 10 are arranged in parallel to each other. When multiple filter screens of different heights are arranged inside the pre-filter box 3, this structure can facilitate the tilting and accumulation of impurities.

[0022] Workflow: The electrical energy required for the device to start and operate in this utility model comes from an external power source. Before using the device, it is necessary to ensure that the device is connected to the electroplating tank waste liquid discharge pipeline and the electroplating tank waste liquid reuse pipeline through the inlet pipe 4 and the outlet pipe 17, respectively. When electroplating waste liquid is generated during the electroplating process and needs to be recycled and reused using this device, under the connection limitation of the side box 2, the waste liquid is pre-sent into the pre-filter box 3 through the inside of the inlet pipe 4. Under the connection of the first sealing top cover 5, the device will... The multi-stage pre-filtration structure, consisting of a first filter screen 6, a second filter screen 7, a third filter screen 9, and a fourth filter screen 10, pre-treats impurities such as particles, metals, and suspended solids in the waste liquid. This prevents these impurities from being directly fed into the pump body 13, which could easily lead to contamination inside the pump body 13 or blockage at the ports. Then, under the sealing effect of the conical plug 12, the filtered impurities are intercepted inside the pre-filtration box 3, with most accumulating on the inclined structure near the guide port 11. The device then utilizes the pump body 13 to start... The suction force generated after the operation draws in the pre-filtered waste liquid, which then passes through the inside of the transfer bend 14 and enters the inside of the filter screen cylinder 16 for further filtration. The waste liquid is then collected and sent into the main recovery tank 1 for recycling. Simultaneously, the pump in the electroplating tank reuse pipeline is activated, and the electroplating waste liquid inside the main recovery tank 1 is sent through the drain pipe 17 into the reuse pipeline for subsequent factory reuse. When it is necessary to periodically clean the impurities accumulated inside the pre-filter box 3, the pre-filter box is fixed while the drain pipe is closed. Remove the bolt fasteners of 3 and the first sealing top cover 5, pull the first sealing top cover 5 upward, and the first sealing top cover 5 will move upward along with the multi-stage filter structure, the central connecting rod 8 and the conical plug 12. The conical plug 12 will remove the blockage on the guide port 11, and the impurities will extend through the inclined structure and fall into the collection chamber inside the side box 2. Finally, the drain port 18 can be opened, and the impurities can be carried out from the inside of the side box 2. Then, the first sealing top cover 5 can be reinstalled in its original position, and the impurity cleaning work can be completed.

[0023] 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 pretreatment device for recycling and reusing waste liquid from electroplating tanks, comprising a main recycling tank (1), characterized in that: The main recycling box (1) is fixedly connected to a side box (2) on the left side. The side box (2) is provided with a pre-filter box (3) on the top. The pre-filter box (3) is connected to an inlet pipe (4) on the left side. The pre-filter box (3) is fixedly installed with a first sealing top cover (5). The bottom of the first sealing top cover (5) is sequentially fitted with a first filter screen (6), a second filter screen (7), a third filter screen (9) and a fourth filter screen (10) from left to right. A central connecting rod (8) is fixedly connected to the first sealing top cover (5) in the gap between the second filter screen (7) and the third filter screen (9). A conical plug (12) is fixedly connected to the bottom of the central connecting rod (8). A guide port (11) is opened at the middle position of the bottom of the pre-filter box (3) and is connected to the inside of the side box (2). The bottom of the first filter screen (6), the second filter screen (7), the third filter screen (9) and the fourth filter screen (10) are all glued with sealing strips (19).

2. The pretreatment device for recycling and reusing electroplating tank waste liquid according to claim 1, characterized in that: The main recycling box (1) is fixedly equipped with a second sealing top cover (15). A drain pipe (17) is connected to the lower right position of the main recycling box (1). The height of the main recycling box (1) is less than the height of the side box (2). A sewage outlet (18) is connected to the left side position of the side box (2).

3. The pretreatment device for recycling and reusing electroplating tank waste liquid according to claim 2, characterized in that: A water pump body (13) is fixedly installed on the top left side of the second sealing top cover (15). The outlet end of the water pump body (13) is connected to a transition bend (14). The transition bend (14) is designed with an "L" shape. A filter screen cylinder (16) extending into the main recovery box (1) is fixedly installed at the bottom of the second sealing top cover (15).

4. The pretreatment device for recycling and reusing electroplating tank waste liquid according to claim 1, characterized in that: The bottom of the sealing strip (19) is fitted to the inclined surface on the lower left and right sides of the inner side of the pre-filter box (3). The inner end of the guide port (11) and the outer end of the conical plug (12) are sized to match. The lower end of the conical plug (12) extends to the inner side of the guide port (11).

5. The pretreatment device for recycling and reusing electroplating tank waste liquid according to claim 3, characterized in that: The height of the first filter (6) is equal to the height of the fourth filter (10), the height of the second filter (7) is equal to the height of the third filter (9), the liquid outlet of the pre-filter box (3) is connected to the liquid inlet of the water pump body (13), and the first filter (6), the second filter (7), the third filter (9) and the fourth filter (10) are arranged in parallel to each other.

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