Copper supplementing system for electrolytic copper foil

Abstract

The utility model relates to the field of electrolytic copper foils, and discloses an electrolytic copper foil copper supplementing system, which comprises a low-position tank, a low-position tank, a high-position tank and a low-position tank, the copper dissolving tank is used for dissolving solid oxygen-free copper into a copper sulfate solution and is connected with the low-position tank; the copper supplementing pipeline is used for connecting the low-position tank and the copper dissolving tank; the first flow meter is used for detecting the flow of the copper supplementing pipeline; the first valve is used for controlling the copper supplementing pipeline; the copper sulfate solution feeding pipeline is used for connecting the low-level tank and the diatomite filter; the overflow pipeline is connected with the low-level tank and the copper dissolving tank through a high-low level difference; the second flowmeter is used for detecting the flow of the overflow pipeline; the second valve is used for controlling the overflow pipeline; the copper sulfate solution pump is used for pumping a copper sulfate solution into the copper dissolving tank and the diatomite filter; the upper computer analyzes feedback signals and outputs control instructions, an independent copper supplementing pump is omitted, and follow-up equipment maintenance is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic copper, and in particular to an electrolytic copper foil copper replenishment system. Background Technology

[0002] Traditional electrolytic copper foil replenishment systems have a separate copper replenishment pump to supply copper sulfate solution. This separate pump increases energy consumption, equipment maintenance costs, and is detrimental to process stability. Utility Model Content

[0003] The main objective of this invention is to solve the technical problem that the independently installed copper replenishment pump in the prior art increases both power consumption and equipment maintenance costs. An electrolytic copper foil copper replenishment system includes:

[0004] Low-level tank, used to store copper sulfate solution;

[0005] A copper dissolving tank is used to dissolve solid oxygen-free copper into a copper sulfate solution and is connected to a low-level tank.

[0006] Copper replenishment pipe, used to connect the low-level tank and the copper melting tank;

[0007] The first flow meter is used to detect the flow rate in the copper replenishment pipe;

[0008] The first valve is used to control the copper replenishment pipe;

[0009] The copper sulfate solution loading pipeline is used to connect the low-level tank and the diatomaceous earth filter;

[0010] The overflow pipe connects the low-level tank and the copper melting tank through the difference in elevation.

[0011] The second flow meter is used to detect the flow rate in the overflow pipe;

[0012] The second valve is used to control the overflow pipe;

[0013] A copper sulfate solution pump is used to pump copper sulfate solution into a copper dissolving tank and a diatomaceous earth filter.

[0014] The host computer is wirelessly connected to the first flow meter, the first valve, the second flow meter, and the second valve. It analyzes the feedback signals and outputs control commands.

[0015] The level gauge is used to detect the liquid level of copper sulfate solution in the low-level tank. It is interlocked with the first valve and the second valve and is automatically controlled on the host computer.

[0016] The copper dissolving tank uses a spraying or immersion method, introducing air to dissolve oxygen-free copper, forming a high-concentration copper sulfate aqueous solution, while maintaining a constant liquid level. The low-level tank stores the copper sulfate solution overflowing from the copper dissolving tank and balances the high-concentration copper sulfate solution overflowing from the dissolving tank with the low-concentration copper sulfate solution returning from the foil-making machine; the copper concentration in the low-level tank is 90-95 g / L. The copper sulfate solution pump is made of high-temperature and corrosion-resistant material. The copper sulfate solution supply pipe connects the low-level tank and the diatomaceous earth filter, with a bypass pipeline connecting it to the copper replenishment pipe. The copper replenishment pipe, also made of high-temperature and corrosion-resistant material, connects the low-level tank and the copper dissolving tank. The overflow pipe, using a height difference, connects the copper dissolving tank and the low-level tank, and is made of high-temperature and corrosion-resistant material.

[0017] This utility model has the following beneficial effects:

[0018] ①The new electrolytic copper foil copper replenishment system of this utility model eliminates the independent copper replenishment pump of the traditional process, saves electricity, and facilitates subsequent equipment maintenance;

[0019] ②The novel electrolytic copper foil copper replenishment system of this utility model monitors the flow rate of copper sulfate solution in the pipeline through a flow meter, and remotely controls the valve after analysis by a host computer;

[0020] ③The new electrolytic copper foil replenishment system of this utility model can balance the liquid levels of the copper melting tank and the low-level tank by interlocking the flow rates of the replenishment pipe and the overflow pipe with the liquid level gauge of the low-level tank, thereby reducing the labor intensity of personnel and improving the work efficiency. Attached Figure Description

[0021] Figure 1 A schematic diagram of the electrolytic copper foil copper replenishment system provided in an embodiment of this utility model.

[0022] Figure 2 A schematic diagram of the improved electrolytic copper foil copper replenishment system.

[0023] Figure label:

[0024] 1. Copper dissolving tank; 2. Copper replenishment pipeline; 3. First flow meter; 4. First valve; 5. Copper sulfate solution supply pipeline; 6. Second flow meter; 7. Second valve; 8. Overflow pipeline; 9. Copper sulfate solution pump; 10. Low-level tank; 11. Host computer; 12. Level gauge. Detailed Implementation

[0025] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" or "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0026] For easier understanding, please refer to Figure 1 The first embodiment of the copper foil repair and copper replenishment system in this utility model includes:

[0027] Low-level tank, used to store copper sulfate solution;

[0028] A copper dissolving tank is used to dissolve solid oxygen-free copper into a copper sulfate solution and is connected to a low-level tank.

[0029] Copper replenishment pipe, used to connect the low-level tank and the copper melting tank;

[0030] The first flow meter is used to detect the flow rate in the copper replenishment pipe;

[0031] The first valve is used to control the copper replenishment pipe;

[0032] The copper sulfate solution loading pipeline is used to connect the low-level tank and the diatomaceous earth filter;

[0033] The overflow pipe connects the low-level tank and the copper melting tank through the difference in elevation.

[0034] The second flow meter is used to detect the flow rate in the overflow pipe;

[0035] The second valve is used to control the overflow pipe;

[0036] A copper sulfate solution pump is used to pump copper sulfate solution into a copper dissolving tank and a diatomaceous earth filter.

[0037] The host computer is wirelessly connected to the first flow meter, the first valve, the second flow meter, and the second valve. It analyzes the feedback signals and outputs control commands.

[0038] The level gauge is used to detect the liquid level of copper sulfate solution in the low-level tank. It is interlocked with the first valve and the second valve and is automatically controlled on the host computer.

[0039] Copper dissolving tank: The copper is dissolved by spraying or immersion while air is introduced to form a high-concentration copper sulfate aqueous solution (copper concentration of about 140g / L). The liquid level in the copper dissolving tank is kept constant.

[0040] Low-level tank: Used to store copper sulfate solution overflowing from the copper melting tank and to balance the high-concentration copper sulfate solution overflowing from the copper melting tank and the low-concentration copper sulfate solution returning from the foil making machine. The copper concentration in the low-level tank is 90-95 g / L.

[0041] Copper sulfate solution pump: Used to pump copper sulfate solution from the low-level tank into the diatomaceous earth filter and copper dissolving tank. The pump is made of high-temperature and corrosion-resistant materials.

[0042] Copper sulfate solution supply pipeline: connects the low-level tank and the diatomaceous earth filter, and has a bypass pipeline connected to the copper replenishment pipeline;

[0043] Copper replenishment pipeline: Made of high-temperature and corrosion-resistant material, connecting the low-level tank and the copper melting tank;

[0044] Overflow pipe: Connects the copper melting tank and the low-level tank through the height difference, and is made of high temperature and corrosion resistant material;

[0045] Valves: They have signal output and feedback functions, enabling remote automatic control and remote adjustment;

[0046] Flow meter: It has signal output and feedback functions, can realize automatic control and parameter setting, can detect the flow rate of copper sulfate solution in the pipeline, and feed back to the host computer;

[0047] Host computer: It can analyze the signals fed back from the flow meter and valve, and output control commands to the valve.

[0048] The level gauge is used to detect the liquid level of copper sulfate solution in the low-level tank. It is interlocked with the first valve and the second valve and is automatically controlled on the host computer.

[0049] like Figure 2 As shown, the original electrolytic copper foil replenishment system used a separate copper replenishment pump to add a low-concentration copper sulfate solution (approximately 90 g / L) from the low-level tank to the copper dissolving tank. As the liquid level in the copper dissolving tank rose, the excess copper sulfate solution flowed back into the low-level tank through an overflow pipe. The copper concentration balance in the low-level tank was maintained by replacing the copper solution with a mixture of high and low concentrations of copper sulfate solution. The replacement rate was controlled by both the frequency of the copper replenishment pump and a manual valve.

[0050] Improvement is to cancel Figure 2 The copper replenishment pump and connecting pipe are modified by adding a section of pipe. A bypass is opened on the outlet pipe of the sewage pump and connected to the main pipe. Then, a flow meter and an automatic valve are added to form a closed loop. The system collects and sends signals through a host computer to achieve automatic control and remote adjustment.

[0051] By creating a bypass in the liquid supply pipeline, a portion of the copper sulfate solution is added to the copper dissolving tank. The copper dissolving tank then overflows, supplying a high-concentration copper sulfate solution to a lower-level tank via an overflow pipe. This allows a single solution pump to perform both liquid supply and copper replenishment functions. Flow meters and valves are installed on the copper replenishment and overflow pipelines. The flow meters monitor the copper ion concentration in real time and provide feedback to a host computer. Upon receiving the data feedback, the host computer can remotely adjust the valve opening and closing. This invention not only reduces subsequent equipment maintenance costs but also improves personnel efficiency while simultaneously monitoring production process data in real time, ensuring process stability.

[0052] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A copper replenishment system for electrolytic copper foil, characterized in that, The system includes: Low-level tank, used to store copper sulfate solution; A copper dissolving tank is used to dissolve solid oxygen-free copper into a copper sulfate solution and is connected to a low-level tank. Copper replenishment pipe, used to connect the low-level tank and the copper melting tank; The first flow meter is used to detect the flow rate in the copper replenishment pipe; The first valve is used to control the copper replenishment pipe; The copper sulfate solution loading pipeline is used to connect the low-level tank and the diatomaceous earth filter; The overflow pipe connects the low-level tank and the copper melting tank through the difference in elevation. The second flow meter is used to detect the flow rate in the overflow pipe; The second valve is used to control the overflow pipe; A copper sulfate solution pump is used to pump copper sulfate solution into a copper dissolving tank and a diatomaceous earth filter. The host computer is wirelessly connected to the first flow meter, the first valve, the second flow meter, and the second valve. It analyzes the feedback signals and outputs control commands. The level gauge is used to detect the liquid level of copper sulfate solution in the low-level tank. It is interlocked with the first valve and the second valve and is automatically controlled on the host computer.

2. The electrolytic copper foil copper replenishment system according to claim 1, characterized in that, The copper dissolving tank is operated by spraying or immersion. While air is introduced, oxygen-free copper is dissolved to form a high-concentration copper sulfate aqueous solution, and the liquid level in the copper dissolving tank is kept constant.

3. The electrolytic copper foil copper replenishment system according to claim 1, characterized in that, The low-level tank is used to store the copper sulfate solution overflowing from the copper melting tank and to balance the high-concentration copper sulfate solution overflowing from the copper melting tank and the low-concentration copper sulfate solution returning from the foil making machine. The copper concentration in the low-level tank is 90-95 g / L.

4. The electrolytic copper foil copper replenishment system according to claim 1, characterized in that, The copper sulfate solution pump is made of high-temperature and corrosion-resistant materials.

5. The electrolytic copper foil copper replenishment system according to claim 1, characterized in that, The copper sulfate solution supply pipeline is connected to the low-level tank and the diatomaceous earth filter, and a bypass pipeline is provided. The copper sulfate solution supply pipeline is connected to the copper replenishment pipeline.

6. The electrolytic copper foil copper replenishment system according to claim 1, characterized in that, The copper replenishment pipeline is made of a high-temperature and corrosion-resistant material and connects the low-level tank and the copper melting tank.

7. The electrolytic copper foil copper replenishment system according to claim 1, characterized in that, The overflow pipe connects the copper melting tank and the low-level tank through a height difference, and is made of a high-temperature resistant and corrosion-resistant material.

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