Electrolyte purification device

Abstract

The utility model provides an electrolyte purification device which comprises a separation and purification mechanism arranged between an outlet of a soiling solution storage tank and an inlet of a filter, the separation and purification mechanism comprises a spiral tank body, a soiling solution inlet and an oil stain outlet are formed in the side wall of the spiral tank body, and a solution outlet is formed in the bottom of the spiral tank body. The sewage inlet is communicated with an outlet of the sewage storage tank, and the solution outlet is communicated with an inlet of the filter. After sewage flowing out of the outlet of the sewage storage tank is separated and purified through the separation and purification mechanism, the sewage is filtered and separated through the filter; the oil and lipid organic matters in the electrolytic copper solution are efficiently and quickly separated, and the problems that although a traditional separation and purification device can remove most of dirt, a small amount of dirt enters a crude foil engine and is adsorbed on the surface of a cathode roller, copper cannot be electroplated and deposited on the part, pinholes are formed, permeation points are abnormal, and the surface of the cathode roller is damaged are solved. And the quality of a subsequent circuit board is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of purification equipment, in particular to an electrolyte purification device. Background Art

[0002] The crude copper (containing 99% copper) is pre-made into thick plates as the anode, and pure copper is made into thin sheets as the cathode. A mixture of sulfuric acid and copper sulfate is used as the electrolyte. After electricity is applied, the copper dissolves from the anode into copper ions (Cu) and moves to the cathode. After reaching the cathode, it obtains electrons and precipitates pure copper (also known as electrolytic copper) at the cathode. Impurities in the crude copper such as iron and zinc that are more active than copper will dissolve along with the copper into ions (Zn and Fe). Since these ions are less likely to precipitate than copper ions, the precipitation of these ions on the cathode can be avoided by properly adjusting the potential difference during electrolysis. Impurities that are less active than copper, such as gold and silver, are deposited at the bottom of the electrolytic cell. The copper plates produced in this way are called "electrolytic copper" and are of extremely high quality and can be used to make electrical products.

[0003] When the existing high-purity copper electrolyte purification device purifies and filters the electrolytic copper foil liquid, a high amount of copper remains in the copper foil liquid in the pool. If targeted purification treatment is not performed, a large amount of copper material will still remain in the filtered electrolyte, making the electrolyte unable to be reused later.

[0004] During electrolytic copper foil production, the electrolyte is not clean, which can easily lead to penetration points and pinholes. Penetration points in the circuit board foil can cause adhesive seepage during lamination for downstream customers, causing the copper clad laminate to adhere to the stainless steel plate and making it difficult to separate the copper clad laminate from the stainless steel plate, causing a lot of trouble in production operations.

[0005] Through research and analysis, it was found that when copper material is placed in a copper dissolving tank, contaminants (such as oil and fat) on the surface of the copper material are dissolved, while the surface oil and fat organic matter floats in the liquid. These organic matter enters the electrolytic cell along with the electrolyte and directly adsorbs on the surface of the cathode roller. Due to its non-conductivity, it cannot precipitate copper during electroplating, forming a pinhole or penetration point.

[0006] Refer to the instruction manual Figure 1 This is a flow chart of the traditional copper material degreasing process for electrolytic copper foil production. The process is as follows: outlet of the dirty liquid storage tank → filter → clean liquid storage tank → fine filter → foil machine → inlet of the dirty liquid storage tank. Although this method can remove most of the dirt, a small amount of dirt will still enter the foil machine and be adsorbed on the surface of the cathode roller, making it impossible to electroplate copper in that area, forming pinholes and abnormal penetration points, which will affect the quality of subsequent circuit boards. Utility Model Content

[0007] In view of this, the utility model provides an electrolyte purification device, which can realize the efficient and rapid separation of oil and lipid organic matter in the electrolytic copper solution by setting a separation and purification mechanism between the outlet of the waste liquid storage tank and the filter, solving the problem that although the traditional separation and purification device can remove most of the dirt, a small amount of dirt will still enter the foil machine and be adsorbed on the surface of the cathode roller, making it impossible to electroplate copper in this area, forming pinholes and abnormal penetration points, and affecting the quality of subsequent circuit boards.

[0008] In order to solve the above technical problems, the present invention provides an electrolyte purification device, including a separation and purification mechanism, which is arranged between the outlet of the dirty liquid storage tank and the inlet of the filter. The separation and purification mechanism includes a spiral tank body, and a dirty liquid inlet and an oil outlet are provided on the side wall of the spiral tank body. The bottom of the spiral tank body is provided with a solution outlet, the dirty liquid inlet is connected to the outlet of the dirty liquid storage tank, and the solution outlet is connected to the inlet of the filter. The utility model can separate and purify the dirty liquid flowing out of the outlet of the dirty liquid storage tank through the separation and purification mechanism, and then filter and separate it through the filter, thereby realizing efficient and rapid separation of oil and lipid organic matter in the electrolytic copper solution, solving the problem that although the traditional separation and purification device can remove most of the dirt, a small amount of dirt will enter the foil machine and be adsorbed on the surface of the cathode roller, making it impossible to electroplate copper deposited in this part, forming pinholes and abnormal penetration points, and affecting the quality of subsequent circuit boards.

[0009] The spiral tank body has a conical structure, and a vortex cover is provided on the upper part of the solution outlet. The utility model can separate the solution by setting up the spiral tank body and utilizing the density difference of each component of the solution and the principle of centrifugal motion. At the same time, the solution outlet is located below the tank body, which reduces power energy consumption and greatly improves separation efficiency.

[0010] The dirty liquid inlet is set at 2 / 3 of the spiral tank body, and the oil outlet is set at 1 / 4 of the spiral tank body.

[0011] A heater is provided on the vortex cover. The utility model can be used to decompose strong oxidants and certain sodium alkyl sulfonates by arranging a heater on the vortex cover at the solution outlet to avoid entering the system and affecting production.

[0012] In summary, compared with the prior art, this application has at least one of the following beneficial technical effects:

[0013] 1. The utility model can separate and purify the dirty liquid flowing out of the outlet of the dirty liquid storage tank through a separation and purification mechanism, and then filter and separate it through a filter, thereby realizing efficient and rapid separation of oil and lipid organic matter in the electrolytic copper solution. It solves the problem that although the traditional separation and purification device can remove most of the dirt, a small amount of dirt will still enter the foil production machine and be adsorbed on the surface of the cathode roller, making it impossible to electroplate copper deposition in this area, forming pinholes and abnormal penetration points, and affecting the quality of subsequent circuit boards.

[0014] 2. The utility model can add a strong oxidant and a certain sodium alkyl sulfonate into the spiral tank body to decompose macromolecular organic matter and improve the filtering effect of the filter.

[0015] 3. The utility model can separate the solution by setting a spiral tank body and utilizing the density difference of each component of the solution and the principle of centrifugal motion. At the same time, the solution outlet is located below the tank body, which reduces power energy consumption and greatly improves separation efficiency.

[0016] 4. The utility model can set a heater at the vortex cover of the solution outlet to decompose strong oxidants and certain sodium alkyl sulfonates to avoid entering the system and affecting production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a flow chart of the traditional copper material degreasing process for producing electrolytic copper foil according to the present invention;

[0018] Figure 2 This is a process flow chart of copper material degreasing in the production of electrolytic copper foil improved by the present invention;

[0019] Figure 3 This is a schematic structural diagram of the separation and purification mechanism in the electrolyte purification device of the present invention;

[0020] Figure 4 It is a partial cross-sectional view of the separation and purification mechanism in the electrolyte purification device of the present invention.

[0021] Explanation of reference numerals: 100, separation and purification mechanism; 101, spiral tank body; 102, dirty liquid inlet; 103, oil and dirt outlet; 104, solution outlet; 200, dirty liquid storage tank; 300, filter; 400, vortex cover; 500, heater. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiment of the present invention clearer, the following will be combined with the appended drawings of the embodiment of the present invention. Figure 1-4, clearly and completely describing the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention.

[0023] like Figure 1-4 As shown: This embodiment provides an electrolyte purification device, including a separation and purification mechanism 100, which is arranged between the outlet of the dirty liquid storage tank 200 and the inlet of the filter 300. The separation and purification mechanism 100 includes a spiral tank body 101, and a dirty liquid inlet 102 and an oil outlet 103 are provided on the side wall of the spiral tank body 101. A solution outlet 104 is provided at the bottom of the spiral tank body 101. The dirty liquid inlet 102 is connected to the outlet of the dirty liquid storage tank 200, and the solution outlet 104 is connected to the inlet of the filter 300. The utility model can separate and purify the dirty liquid flowing out of the outlet of the dirty liquid storage tank 200 through the separation and purification mechanism 100, and then filter and separate it through the filter 300, thereby achieving efficient and rapid separation of oil and lipid organic matter in the electrolytic copper solution. This solves the problem that although traditional separation and purification devices can remove most of the dirt, a small amount of dirt will enter the foil production machine and be adsorbed on the surface of the cathode roller, making it impossible to electroplate copper in this area, forming pinholes and abnormal penetration points, which affect the quality of subsequent circuit boards.

[0024] According to one embodiment of the present invention, Figure 3 and Figure 4 As shown, the spiral tank body 101 is a conical structure, and a vortex cover 400 is provided on the upper part of the solution outlet 104. The utility model can separate the solution by providing the spiral tank body 101 and utilizing the density difference of each component of the solution and the principle of centrifugal motion. At the same time, the solution outlet 104 is located below the tank body, which reduces power energy consumption and greatly improves separation efficiency.

[0025] According to another embodiment of the present invention, Figure 3 As shown, the dirty liquid inlet 102 is set at 2 / 3 of the spiral tank body 101, and the oil outlet 103 is set at 1 / 4 of the spiral tank body 101.

[0026] According to another embodiment of the present invention, Figure 4 As shown, a heater 500 is provided on the vortex cover 400. The utility model can provide a heater 500 at the vortex cover of the solution outlet 104 to decompose strong oxidants and certain sodium alkyl sulfonate to avoid entering the system and affecting production.

[0027] The use method of this utility model:

[0028] First of all, it should be made clear that the electrolyte purification device involved in the present invention is mainly used for separating the surface dirt (such as oil, lipid organic matter) of the copper material in the electrolyte in the degreasing process of the copper material in the electrolytic copper foil production. The present invention takes the purification treatment of the electrolytic waste liquid in the electrolytic copper foil production process as an example to explain its use method in detail. When the electrolytic waste liquid needs to be purified, first connect the outlet of the waste liquid storage tank 200 with the outlet of the waste liquid storage tank 200, connect the solution outlet 104 with the inlet of the filter 300, and start the heater 500 for heating at the same time. The heater 500 is set at the vortex cover of the solution outlet 104 to decompose the strong oxidant and a certain alkyl sodium sulfonate to avoid entering the system and affecting the production. Then, the strong oxidant and a certain alkyl sodium sulfonate are added into the spiral tank body 101, and the solution outlet 104 is connected to the inlet of the filter 300. In order to decompose macromolecular organic matter and improve the filtering effect of the filter 300, a spiral tank body 101 is provided, and the solution is separated by utilizing the density difference of each component of the solution and the principle of centrifugal motion. At the same time, the solution outlet 104 is provided at the bottom of the tank body, which reduces power energy consumption and greatly improves the separation efficiency. The utility model can separate and purify the dirty liquid flowing out of the outlet of the dirty liquid storage tank 200 through the separation and purification mechanism 100, and then filter and separate it through the filter 300, thereby realizing efficient and rapid separation of oil and lipid organic matter in the electrolytic copper solution, solving the problem that although the traditional separation and purification device can remove most of the dirt, a small amount of dirt will enter the foil machine and be adsorbed on the surface of the cathode roller, making it impossible to electroplate and deposit copper in this part, forming pinholes and abnormal penetration points, and affecting the quality of subsequent circuit boards.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An electrolyte purification device, characterized in that: The invention comprises a separation and purification mechanism (100) which is arranged between the outlet of a dirty liquid storage tank (200) and the inlet of a filter (300). The separation and purification mechanism (100) comprises a spiral tank body (101). A dirty liquid inlet (102) and an oily waste outlet (103) are arranged on the side wall of the spiral tank body (101). A solution outlet (104) is arranged at the bottom of the spiral tank body (101). The dirty liquid inlet (102) is connected to the outlet of the dirty liquid storage tank (200), and the solution outlet (104) is connected to the inlet of the filter (300).

2. The electrolyte purification device according to claim 1, wherein: The spiral tank body (101) is a conical structure, and a vortex cover (400) is provided on the upper part of the solution outlet (104).

3. The electrolyte purification device according to claim 2, wherein: The dirty liquid inlet (102) is arranged at 2 / 3 of the spiral tank body (101), and the oily waste outlet (103) is arranged at 1 / 4 of the spiral tank body (101).

4. The electrolyte purification device according to claim 2, wherein: A heater (500) is provided on the vortex cover (400).

Images