A plating liquid circulation filtration system

Abstract

The present invention relates to the technical field of electroplating equipment, and specifically to an electroplating liquid circulation and filtration system. The electroplating liquid circulation and filtration system comprises a tank body, a circulation pump and a filter barrel, wherein the circulation pump is arranged between the tank body and the filter barrel, the tank body is provided with a tank body liquid inlet pipe and a tank body liquid outlet pipe inside the tank body, the tank body liquid outlet pipe is connected to the bottom of the circulation pump, a connecting pipe is arranged between the circulation pump and the filter barrel, the filter barrel is provided with a filter barrel liquid outlet pipe at the upper part of the filter barrel, and a medicine solution crystal precipitation cleaning port is arranged at the lower part of the filter barrel, the filter barrel comprises an outer shell, a filter element, a filter element conduit, a sealing ring and a filter barrel cover, the filter element is arranged inside the outer shell, the filter element conduit is arranged inside the filter element, the filter barrel cover is arranged at the upper part of the outer shell, and the sealing ring is arranged between the outer shell and the filter barrel cover.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating equipment, in particular to an electroplating liquid circulation filtering system. Background Art

[0002] Electroplating is the process of plating a thin layer of other metals or alloys on certain metal surfaces using the principle of electrolysis. It is a process that uses electrolysis to adhere a layer of metal film to the surface of metal or other material parts, thereby improving the metal's corrosion resistance, wear resistance, conductivity, etc.

[0003] In order to ensure the quality of the coating, in addition to strictly controlling the temperature, current density, and other process parameters, it is also necessary to pay attention to the influence of factors such as stirring and impurities in the plating solution on the quality of the plated parts. Plating solution filtration is one of the important measures to ensure the quality of electroplated products. The existing electroplating process plating solution filtration system is usually composed of a plating tank, a circulation pump, and a filter barrel. The tank body drain port is set at the bottom and connected to the circulation pump inlet. The circulation pump outlet is connected to the filter barrel. The filter barrel outlet is connected to the tank body inlet, and the filter barrel outlet is set at the bottom of the filter cartridge. If this kind of circulation system encounters cold weather and the liquid crystals precipitate at low temperature, the crystals will block the circulation pump head, the filter barrel outlet and other locations, causing the filter machine to be unable to open. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides an electroplating circulation filtration system, which can prevent the pump head and the filter barrel outlet from being blocked due to the crystallization of the liquid medicine.

[0005] A plating liquid circulation filtration system comprises a tank body, a circulation pump and a filter barrel, wherein the circulation pump is arranged between the tank body and the filter barrel, a tank body liquid inlet pipe and a tank body liquid outlet pipe are arranged inside the tank body, the tank body liquid outlet pipe is connected to the bottom of the circulation pump, a connecting pipe is arranged between the circulation pump and the filter barrel, a filter barrel liquid outlet pipe is arranged at the upper part of the filter barrel, a medicine solution crystal precipitation cleaning port is arranged at the lower part of the filter barrel, the filter barrel comprises an outer shell, a filter element, a filter element conduit, a sealing ring and a filter barrel cover, the filter element is arranged inside the outer shell, the filter element conduit is arranged inside the filter element, the filter barrel cover is arranged at the upper part of the outer shell, and the sealing ring is arranged between the outer shell and the filter barrel cover.

[0006] Preferably, the circulation pump is a vertical pump.

[0007] Preferably, the connecting pipe is connected to the side surfaces of the circulation pump and the filter barrel.

[0008] Preferably, the lower end of the tank body liquid outlet pipe extends to the bottom of the tank body.

[0009] The beneficial effects brought by the present invention are:

[0010] The present invention provides a circulation system. When the medicine is working normally, the pipeline is filled with medicine liquid. After stopping, the circulation pump and the medicine liquid in the filter barrel fall back to the pump head position, exposing the liquid outlet of the filter barrel. When the medicine liquid crystallizes at low temperature, the entire circulation pipeline will not be blocked, the equipment can be started smoothly, and the crystallized medicine liquid automatically dissolves as the temperature rises. In short, the circulation system will not cause pipeline blockage due to the crystallization and precipitation of the medicine liquid, thereby ensuring smooth production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0012] Figure 1 It is a structural schematic diagram of a plating liquid circulation filtration system provided by a preferred embodiment of the present invention.

[0013] The numbers corresponding to the component names in the figure are as follows:

[0014] 1. Tank body; 2. Circulation pump; 3. Filter barrel; 4. Tank body liquid inlet pipe; 5. Tank body liquid outlet pipe; 6. Filter barrel liquid outlet pipe; 7. Shell; 8. Sealing ring; 9. Filter element; 10. Filter element guide tube; 11. Filter barrel cover; 12. Cleaning port for crystallization and precipitation of medicine; 13. Connecting pipe. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments:

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] See also Figure 1 The present invention provides a technical solution, a plating tank filter, which includes a tank body 1, a circulation pump 2, a filter barrel 3, a tank body liquid inlet pipe 4, a tank body liquid outlet pipe 5, a filter barrel liquid outlet pipe 6, a shell 7, a sealing ring 8, a filter element 9, a filter element conduit 10, a filter barrel cover 11, a medicine crystal precipitation cleaning port 12 and a connecting pipe 13. The liquid outlet mode 4 of the medicine tank is the liquid outlet mode on the tank, the circulation pump 2 is a vertical pump, the filter barrel liquid inlet is set at the position of the filter barrel pump body, the filter barrel outlet 5 is set on the filter cartridge cover 10, and the filter cartridge cover 10 and the outlet of the filter element conduit 9 are sealed with a sealing ring 7.

[0018] During installation, keep the liquid level in the tank at the position of the circulating pump head. This level is the lowest level used by the vertical pump. Try to increase the height of the horizontal pipe of the liquid pipe outside the tank. In the shutdown state, the liquid drops back to the same level as the liquid level in the tank, and the liquid outlet of the filter barrel is exposed to the liquid surface, and a part of the filter element is exposed. The liquid crystals precipitate after being placed at low temperature, and a large amount of them gather at the bottom of the tank, the lower part of the pipeline, and the bottom of the filter barrel. It will not cause the circulation pipeline to be blocked. When it is used again, it can be started and circulated normally. As the temperature of the liquid increases, the crystals gradually dissolve.

[0019] The present invention solves the problem that after crystal precipitation occurs in the medicine solution, the circulation pipeline is blocked and cannot circulate normally. By lowering the working liquid level of the circulation pump and changing the positions of the liquid inlet and the liquid outlet of the filter barrel, the problem of crystal blocking the pipeline can be effectively improved, maintenance can be reduced, and the loss of medicine solution can be reduced.

[0020] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be applied to a variety of applications without departing from the present invention.

[0021] The invention can be realized in other specific forms without the spirit or essential features of the invention. Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0022] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A plating solution circulation filtration system, characterized in that The invention comprises a tank body, a circulation pump and a filter barrel, wherein the circulation pump is arranged between the tank body and the filter barrel, a tank body liquid inlet pipe and a tank body liquid outlet pipe are arranged inside the tank body, the tank body liquid outlet pipe is connected to the bottom of the circulation pump, a connecting pipe is arranged between the circulation pump and the filter barrel, a filter barrel liquid outlet pipe is arranged at the upper part of the filter barrel, a medicine solution crystal precipitation cleaning port is arranged at the lower part of the filter barrel, the filter barrel comprises an outer shell, a filter element, a filter element conduit, a sealing ring and a filter barrel cover, the filter element is arranged inside the outer shell, the filter element conduit is arranged inside the filter element, the filter barrel cover is arranged at the upper part of the outer shell, and the sealing ring is arranged between the outer shell and the filter barrel cover; the connecting pipe is connected to the circulation pump and the side of the filter barrel; During installation, keep the liquid level in the tank at the position of the circulating pump head; in the shutdown state, the medicine drops back to be flush with the liquid level in the tank, the drain port of the filter barrel is exposed to the liquid surface, and a part of the filter element is exposed; the medicine is placed at a low temperature to produce crystal precipitation, which gathers in large quantities at the bottom of the tank, the lower part of the pipeline, and the bottom of the filter barrel, and will not cause the circulation pipeline to be blocked. When used again, it can be started and circulated normally. As the temperature of the medicine rises, the crystals gradually dissolve.

2. The electroplating solution circulation filtration system according to claim 1, characterized in that The circulating pump is a vertical pump.

3. The electroplating solution circulation filtration system according to claim 1, characterized in that The lower end of the tank body liquid outlet pipe extends to the bottom of the tank body.

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