PCB inner layer acid etching copper extraction regeneration device

Abstract

The utility model relates to a regeneration device, in particular to a PCB (printed circuit board) inner layer acid etching copper extraction regeneration device which comprises an etching machine, a regeneration liquid return pipe is arranged at the top of the etching machine and communicated with the etching machine, the etching machine is connected with a waste liquid storage mechanism through a waste etching liquid pipe, and a water pump is mounted on the waste etching liquid pipe. The waste liquid storage mechanism is connected with an electrolytic tank through a liquid inlet pipe, the end, away from the waste liquid storage mechanism, of the electrolytic tank is connected with a recycling storage mechanism through a liquid outlet pipe, the recycling storage mechanism is connected with a medicine tank, the medicine tank is communicated with the recycling storage mechanism and a regenerated liquid return pipe, and an electrode plate is movably connected into the electrolytic tank. According to the device, metal copper in the waste etching solution is separated out and collected by virtue of electrolytic reaction, and meanwhile, fallen copper cuttings and copper cuttings in the suspended waste etching solution are collected by virtue of the filter frame, so that the recovery efficiency of the device on the metal copper is effectively improved, the influence of the cuttings on the smooth proceeding of subsequent work is avoided, and the working quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a regenerating device especially to a PCB inner layer acid etching copper extraction regenerating device. BACKGROUND

[0002] In the industry of semiconductor manufacturing, electronic component production and the like, etching machine is a commonly used processing equipment. A large amount of waste liquid is generated in the etching process, and the waste liquid usually contains high concentration of copper and other chemical substances. The diaphragm electrolysis process can make the copper ions in the cathode chamber obtain electrons to become valuable copper plate under the action of electric current, and the low-copper-content regenerated liquid can be returned to the etching tank for use, thereby improving the resource utilization rate to a certain extent.

[0003] In the recycling and regeneration work of the traditional regenerating device, part of the copper scraps will fall off the copper plate during electrolysis and flow into the subsequent working area with the solution, which not only causes the workers to be unable to collect all the copper, but also may affect the smooth progress of the subsequent work, seriously affecting the work quality and increasing the operation difficulty.

[0004] Therefore, it is necessary to design a PCB inner layer acid etching copper extraction regenerating device. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the shortcomings of the traditional regenerating device that cannot effectively handle the falling copper scraps generated in the work, causing waste of resources and affecting the progress of the subsequent work, the technical problem to be solved by the utility model is to provide a PCB inner layer acid etching copper extraction regenerating device.

[0006] The technical scheme of the utility model is as follows: a PCB inner layer acid etching copper extraction regenerating device, comprising an etching machine, a regenerated liquid backflow pipe is arranged on the top of the etching machine, the regenerated liquid backflow pipe is communicated with the etching machine, the etching machine is connected with a waste liquid storage mechanism through an etching waste liquid pipe, a water pump is installed on the etching waste liquid pipe, the waste liquid storage mechanism is connected with an electrolytic cell through a liquid inlet pipe, the electrolytic cell is connected with a recovery storage mechanism through a liquid outlet pipe away from the waste liquid storage mechanism, the recovery storage mechanism is connected with a medicine tank, the medicine tank is communicated with the recovery storage mechanism and the regenerated liquid backflow pipe, an electrode plate is movably connected in the electrolytic cell, a filter frame is arranged in the electrolytic cell, the filter frame is fixedly connected with a sliding block, and a limiting groove for the sliding block to slide is formed in the inner wall of the electrolytic cell.

[0007] As a preferred technical scheme of the utility model, a basket-type filter is arranged on the pipeline connected with the etching machine.

[0008] As a preferred technical scheme of the utility model, a waste liquid filter is installed on the etching waste liquid pipe.

[0009] As a preferred technical scheme of the utility model, the waste liquid storage mechanism comprises a mother liquor storage tank, the etching machine is connected with the mother liquor storage tank through an etching waste liquid pipe, and the mother liquor storage tank is connected with the electrolytic cell through a liquid inlet pipe.

[0010] As a preferred technical scheme of the utility model, the filter frame is fixedly connected with a connecting rope, and one end of the connecting rope away from the filter frame is fixedly connected with a clamping block matched with the limiting groove.

[0011] As a preferred technical scheme of the utility model, the recycling storage mechanism comprises a regenerated liquid storage tank, one end of the electrolytic cell away from the mother liquor storage tank is connected with the regenerated liquid storage tank through a liquid outlet pipe, and the regenerated liquid storage tank is connected with the medicine tank.

[0012] Compared with the prior art, the utility model has the following advantages: 1, the utility model relies on electrolytic reaction and collects the copper in the etching waste liquid, and meanwhile, the copper scraps falling off and the copper scraps in the suspended early solution are collected through the filter frame, so that the recycling efficiency of the device for the metal copper is effectively improved, the subsequent work is prevented from being affected by the scraps, and the work quality is ensured.

[0013] 2, the setting of the mother liquor storage tank and the regenerated liquid storage tank in the utility model makes the management of the waste liquid and the low copper solution more standardized, facilitates quantitative and timed discharge, and reduces the operation difficulty.

[0014] 3, the waste liquid filter in the utility model pre-treats the etching waste liquid before entering the mother liquor storage tank, ensures the quality of the waste liquid entering the electrolytic cell, and thus improves the electrolytic efficiency. DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0016] Figure 2 It is a three-dimensional structure schematic view of the regenerated liquid return pipe and the basket type filter of the utility model.

[0017] Figure 3 It is a three-dimensional structure schematic view of the mother liquor storage tank and the electrolytic cell of the utility model.

[0018] Figure 4 It is a three-dimensional structure schematic view of the electrode plate and the filter frame of the utility model.

[0019] Figure 5 It is a three-dimensional structure sectional view of the electrolytic cell of the utility model.

[0020] Figure 6 It is a three-dimensional structure schematic view of the regenerated liquid storage tank and the medicine tank of the utility model.

[0021] The components in the attached diagram are labeled as follows: 1. Regenerated liquid return pipe, 2. Etching machine, 3. Basket filter, 4. Water pump, 5. Etching waste liquid pipe, 6. Waste liquid filter, 7. Mother liquor storage tank, 8. Electrolytic cell, 9. Inlet pipe, 10. Outlet pipe, 11. Electrode plate, 12. Filter frame, 13. Sliding block, 14. Connecting rope, 15. Limiting groove, 16. Regenerated liquid storage tank, 17. Medicine tank. Detailed Implementation

[0022] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0023] Example: A PCB inner layer acid etching copper extraction and regeneration device, such as... Figures 1-6 As shown, the system includes an etching machine 2, with a regeneration liquid return pipe 1 installed on top of the etching machine 2. The regeneration liquid return pipe 1 is connected to the etching machine 2. The etching machine 2 is connected to a waste liquid storage mechanism via an etching waste liquid pipe 5. A water pump 4 is installed on the etching waste liquid pipe 5. The waste liquid storage mechanism is connected to an electrolytic cell 8 via an inlet pipe 9. The end of the electrolytic cell 8 furthest from the waste liquid storage mechanism is connected to a recycling storage mechanism via an outlet pipe 10. The recycling storage mechanism is connected to a reagent tank 17, which is connected to both the recycling storage mechanism and the regeneration liquid return pipe 1. Electrode plates 11 are movably connected inside the electrolytic cell 8. A filter frame 12 is installed inside the electrolytic cell 8, and a slider 13 is fixedly connected to the filter frame 12. A limiting groove 15 is opened on the inner wall of the electrolytic cell 8 for the slider 13 to slide. Here, the device is equipped with multiple water pumps to drive the solution flow and supply power to the electrode plates 11 inside the electrolytic cell 8. After the electrode plates 11 are energized, they undergo an electrolytic reaction with the etching waste liquid, causing the etching waste liquid to precipitate metallic copper. The metallic copper adheres to the surface of the electrode plates 11, and the etching waste liquid is then transformed into a low-copper solution.

[0024] like Figure 2 As shown, a basket filter 3 is installed on the pipe connecting the regenerated liquid return pipe 1 and the etching machine 2. Here, the basket filter 3 is designed to filter the etching solution when the regenerated liquid return pipe 1 delivers the etching solution to the etching machine 2, intercepting copper shavings and other solid debris that may be present in the etching solution, thereby ensuring the purity of the etching solution and ensuring the smooth progress of the etching work.

[0025] like Figures 1-2As shown, the waste liquid filter 6 is installed on the etching waste liquid pipe 5, and the filtering work of the waste liquid filter 6 is arranged before the etching waste liquid enters the mother liquor tank 7, so that the solid debris and other contaminants in the etching waste liquid can be intercepted, and the mother liquor tank 7 can avoid delivering the etching waste liquid with impurities into the electrolytic cell 8, thereby ensuring the electrolysis efficiency of the device.

[0026] As shown in Figure 3 and 6 , the waste liquid storage mechanism includes the mother liquor tank 7, the etching machine 2 is connected with the mother liquor tank 7 through the etching waste liquid pipe 5, the mother liquor tank 7 is connected with the electrolytic cell 8 through the liquid inlet pipe 9, the recovery storage mechanism includes the regenerated liquid tank 16, and the electrolytic cell 8 is connected with the regenerated liquid tank 16 through the liquid outlet pipe 10 away from the mother liquor tank 7, and the regenerated liquid tank 16 is connected with the medicine tank 17. Here, the mother liquor tank 7 and the regenerated liquid tank 16 are respectively used for storing etching waste liquid and low copper solution, which facilitates the unified management of etching waste liquid or low copper solution by the staff, realizes the quantitative and timed discharge of etching waste liquid or low copper solution, simplifies the operation process, reduces the operation difficulty, and avoids the waste of resources.

[0027] As shown in Figure 5 , the connecting rope 14 is fixedly connected with the filter frame 12, and the end of the connecting rope 14 away from the filter frame 12 is fixedly connected with the clamping block matched with the limiting groove 15. Here, the design of the connecting rope 14 facilitates the staff to take out the filter frame 12, and the filter frame 12 can be taken out without using additional tools, thereby improving the convenience and work efficiency.

[0028] The device is used for recycling waste liquid generated by etching machine 2, and recycling through regeneration process, when using, starting water pump 4, through water pump 4 extraction etching waste liquid generated in the working process of etching machine 2, and it is transported to the mother liquor storage tank 7, in the mother liquor storage tank 7 accumulation a certain amount of etching waste liquid, after sending it to the electrolytic cell 8, then power supply to the electrode plate 11 inside the electrolytic cell 8, electrode plate 11 after electrification and etching waste liquid electrolysis reaction, resulting in etching waste liquid precipitation of copper, copper adheres to the surface of electrode plate 11, etching waste liquid is converted into low copper solution, at the same time, the filter frame 12 at the bottom of electrode plate 11 can collect the deposited copper scrap, open electrolytic cell 8 after completing electrolytic copper, the electrode plate 11 inside is taken out, then slowly pull the connecting rope 14 upwards, the connecting rope 14 drives the filter frame 12 to move upwards, the filter frame 12 drives the deposited copper scrap to move upwards at the same time, the etching waste liquid is filtered again, so that the filter frame 12 can collect the copper scrap suspended in the etching waste liquid, then the filter frame 12 is taken out, thereby completing the collection of copper, then the low copper solution in electrolytic cell 8 is transported to the regeneration liquid storage tank 16, and after accumulating a certain amount of low copper solution in the regeneration liquid storage tank 16, it is transferred to the medicine tank 17, then a certain proportion of etching medicine is added to the medicine tank 17, the low copper solution and etching medicine mixed reaction forms new etching solution, then the etching solution enters the etching machine 2 through the regeneration liquid return pipe 1 to participate in the subsequent etching work, thus completing the recycling of waste liquid.

[0029] Although the present disclosure has been shown and described with respect to certain exemplary embodiments thereof, it should be understood by those skilled in the art that various changes in form and detail can be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the disclosure should not be limited to the above-described embodiments, but should be defined by the appended claims and their equivalents.

Claims

1. A PCB inner layer acid etching copper stripping and regenerating device, comprising an etching machine (2), characterized in that: The etching machine (2) is provided with a regenerative liquid return pipe (1) at the top, the regenerative liquid return pipe (1) is communicated with the etching machine (2), the etching machine (2) is connected with a waste liquid storage mechanism through an etching waste liquid pipe (5), a water pump (4) is installed on the etching waste liquid pipe (5), the waste liquid storage mechanism is connected with an electrolytic cell (8) through a liquid inlet pipe (9), the electrolytic cell (8) is connected with a recovery storage mechanism through a liquid outlet pipe (10) away from the waste liquid storage mechanism, the recovery storage mechanism is connected with a medicine tank (17), the medicine tank (17) is communicated with the recovery storage mechanism and the regenerative liquid return pipe (1), the electrolytic cell (8) is movably connected with an electrode plate (11) inside, the electrolytic cell (8) is provided with a filter frame (12) inside, the filter frame (12) is fixedly connected with a sliding block (13), and the inner wall of the electrolytic cell (8) is provided with a limiting groove (15) for sliding of the sliding block (13).

2. The apparatus for copper recovery and regeneration of PCB inner layer acidic etching according to claim 1, characterized in that: The basket filter (3) is arranged on the pipeline connected with the etching machine (2) of the regenerative liquid return pipe (1).

3. The apparatus for copper recovery and regeneration of PCB inner layer acidic etching according to claim 2, characterized in that: The waste liquid filter (6) is installed on the etching waste liquid pipe (5).

4. The apparatus for copper recovery and regeneration of PCB inner layer acidic etching according to claim 3, characterized in that: The waste liquid storage mechanism comprises a mother liquor storage tank (7), the etching machine (2) is connected with the mother liquor storage tank (7) through the etching waste liquid pipe (5), and the mother liquor storage tank (7) is connected with the electrolytic cell (8) through the liquid inlet pipe (9).

5. The apparatus for copper recovery and regeneration of PCB inner layer acidic etching according to claim 4, characterized in that: The connecting rope (14) is fixedly connected with the clamping block matched with the limiting groove (15) at the end away from the filter frame (12).

6. The apparatus for copper recovery and regeneration of PCB inner layer acidic etching according to claim 5, characterized in that: The recovery storage mechanism comprises a regenerative liquid storage tank (16), the electrolytic cell (8) is connected with the regenerative liquid storage tank (16) through the liquid outlet pipe (10) away from the mother liquor storage tank (7), and the regenerative liquid storage tank (16) is connected with the medicine tank (17).

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