Titanium filter system for plating liquid

Abstract

The utility model discloses a kind of titanium filtering systems for plating platinum liquid, belong to electroplating liquid filtering technical field, solve the problem that traditional plating platinum liquid filtering exists low filtration efficiency, poor effect, the utility model is sequentially connected with pretreatment unit, titanium filter and plating tank in the filtering storage tank, first circulating pump is equipped between plating tank and the filtering storage tank, titanium filter is equipped with titanium filter core, multiple filter screens are equipped in titanium filter core, and filter screen includes surface layer, intermediate layer and support layer;Titanium filter core is equipped with backflush device below, second circulating pump and deionized water storage tank are sequentially connected in backflush device.The utility model can significantly prolong the service life of plating platinum liquid by efficiently removing solid particles and impurities in plating platinum liquid, reduce the influence of impurities on plating layer quality, improve the uniformity and brightness of platinum plating layer, improve plating solution purity and service life.

Description

Technical Field

[0001] This utility model belongs to the field of electroplating solution filtration technology, specifically relating to a titanium filtration system for platinum plating solution. Background Technology

[0002] Platinum plating solutions are easily contaminated by solid particles (such as metal shavings and dust) and impurities (such as decomposition products of organic matter) during the electroplating process, leading to a decline in plating quality and even affecting the stability of the electroplating process. Existing filtration methods for platinum plating solutions have the following problems: 1. Traditional filter materials (such as filter paper and filter cloth) have poor corrosion resistance and short service life; 2. Existing metal filter materials (such as stainless steel filter screens) are prone to reacting with platinum plating solution, introducing secondary pollution; 3. The prior art discloses a titanium fiber felt with a platinum coating, but it is mainly used for gas filtration and does not involve the filtration application of platinum plating solution. Moreover, its structure is complex and its cost is high.

[0003] Therefore, developing a platinum plating solution filtration system based on titanium materials has significant application value. Utility Model Content

[0004] The purpose of this invention is to provide a titanium filtration system for platinum plating solutions to solve the problems of low filtration efficiency and poor performance in traditional platinum plating solution filtration.

[0005] The technical solution of this utility model is: a titanium filtration system for platinum plating solution, including a storage tank to be filtered, a pretreatment unit, a titanium filter and a plating tank connected in sequence to the storage tank to be filtered, a first circulation pump between the plating tank and the storage tank to be filtered, a titanium filter element inside the titanium filter, and multiple layers of filter screen inside the titanium filter element, the filter screen including a surface layer, a middle layer and a support layer; a backwashing device is provided below the titanium filter element, and the backwashing device is connected in sequence to a second circulation pump and a deionized water storage tank.

[0006] As a further improvement of this utility model, a third circulation pump and an intermediate storage tank are connected in sequence between the pretreatment unit and the titanium filter. The intermediate storage tank is equipped with a heating jacket medium and a thermocouple. A solenoid valve, a flow meter, a pressure gauge and a safety valve are also provided between the intermediate storage tank and the titanium filter.

[0007] As a further improvement of this utility model, the pretreatment unit includes a screen and a centrifuge.

[0008] As a further improvement of this utility model, the titanium filter is provided with a slag discharge port at the bottom.

[0009] As a further improvement of this utility model, the intermediate storage tank is connected to a high and low temperature cooling circulation device.

[0010] As a further improvement of this utility model, a level gauge is provided inside the storage tank to be filtered.

[0011] As a further improvement of this utility model, the titanium filter, the first circulation pump, the second circulation pump and the third circulation pump are connected to a control system, which includes a PLC controller and a human-machine interface.

[0012] The beneficial effects of this utility model are as follows: The present invention aims to improve the purity and service life of platinum plating solution by optimizing the structure of titanium filter material and filtration system to efficiently remove solid particles and impurities from platinum plating solution.

[0013] This invention is mainly used to filter impurities in platinum plating solutions, ensuring the purity of the plating solution and the quality of the plating layer. The system includes a titanium filter, a circulation pump, a storage tank, a plating tank, and a control system: the titanium filter is made of titanium metal, which has excellent corrosion resistance and filtration accuracy, and can efficiently remove particulate matter and suspended impurities from the plating solution; the circulation pump is used to transport the plating solution to the filter and realize the recycling of the plating solution through the plating tank; the control system can automatically adjust the filtration parameters according to the flow rate and pressure of the plating solution to ensure the stability and efficiency of the filtration process.

[0014] This invention features a compact structure and simple operation, making it suitable for continuous industrial production environments. By using a titanium filtration system and optimizing the structure and process of the titanium filter material, it can efficiently remove solid particles and impurities from the plating solution, significantly extending the service life of the plating solution, reducing the impact of impurities on the coating quality, improving the uniformity and brightness of the plating layer, and increasing the purity and service life of the plating solution. This invention is widely used in electroplating processes in the fields of electronics, aerospace, and medical devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the titanium filter element in this utility model.

[0016] In the diagram: 1- Storage tank to be filtered; 2- Titanium filter; 3- Titanium filter element; 4- Backwashing device; 5- Plating tank; 6- First circulation pump; 7- Deionized water storage tank; 8- Second circulation pump; 9- Slag discharge port; 10- Intermediate storage tank; 11- Heating jacket medium; 12- Thermocouple; 13- Solenoid valve; 14- Flow meter; 15- Pressure gauge; 16- High and low temperature cooling circulation device; 17- Circulation pump; 18- Screen; 19- Centrifuge; 20- Level gauge; 21- Valve; 22- Safety valve; 31- Surface layer; 32- Intermediate layer; 33- Support layer. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1-2 As shown, a titanium filtration system for platinum plating solution includes a storage tank 1 to be filtered, a pretreatment unit, a titanium filter 2, and a plating tank 5 connected in sequence to the storage tank 1. A first circulation pump 6 is provided between the plating tank 5 and the storage tank 1 to be filtered. The titanium filter 2 contains a titanium filter element 3, which contains multiple layers of filter screens, including a surface layer 31, a middle layer 32, and a support layer 33. A backwashing device 4 is provided below the titanium filter element 2, which is connected in sequence to a second circulation pump 8 and a deionized water storage tank 7.

[0019] A third circulation pump 17 and an intermediate storage tank 10 are connected in sequence between the pretreatment unit and the titanium filter 2. The intermediate storage tank 10 is equipped with a heating interlayer medium 11 and a thermocouple 12. A solenoid valve 13, a flow meter 14, a pressure gauge 15 and a safety valve 22 are also provided between the intermediate storage tank 10 and the titanium filter 2.

[0020] The pretreatment unit includes a screen 18 and a centrifuge 19. The titanium filter 2 has a slag discharge port 9 at its bottom. The intermediate storage tank 10 is connected to a high and low temperature cooling circulation device 16. The storage tank 1 to be filtered is equipped with a level gauge 20. The titanium filter 2, the first circulation pump 6, the second circulation pump 8, and the third circulation pump 17 are connected to a control system, which includes a PLC controller and a human-machine interface.

[0021] Example 1 The titanium filter 2 is made of titanium metal, and the filter housing is made of corrosion-resistant polypropylene or polytetrafluoroethylene. The top of the housing has an inlet and the bottom has an outlet. The filtration accuracy is 0.1-10 microns. The titanium filter element 3 is woven from high-purity titanium fibers with a diameter of 1-10 μm and a porosity of 70-90%. The titanium filter element 3 is cylindrical and has uniformly distributed micropores on its surface to remove particulate matter and suspended impurities from the platinum plating solution.

[0022] The titanium filter element 3 has the following structure: the surface layer 31 is woven from fine titanium fibers with a diameter of 1-10μm to intercept tiny particles; the middle layer 32 is woven from coarse titanium fibers with a diameter of 10-20μm to adsorb organic matter; and the support layer 33 is made of titanium alloy mesh to enhance the mechanical strength of the filter element.

[0023] The filter screen of titanium filter 2 is coated with a corrosion-resistant coating, the coating material of which includes polytetrafluoroethylene or alumina, to improve the filter's chemical corrosion resistance and service life. The filter screen of titanium filter 2 is removable for easy regular cleaning or replacement to ensure filtration efficiency and service life. A slag discharge port 9 is provided at the bottom of titanium filter 2 for regularly discharging impurities that have settled at the bottom, ensuring the cleanliness of the interior of titanium filter 2. A deionized water storage tank 7 is used to store backwash water for titanium filter element 3. The backwashing device 4 includes a backwashing pipe and a deionized water storage tank for regularly cleaning titanium filter element 3 and restoring its filtration performance. The pretreatment unit includes a screen 18 and a centrifuge 19. The screen 18 has a pore size of 10-100μm and is used to remove large particles from the platinum plating solution.

[0024] Titanium filter 2 is connected to the third circulation pump 17 and is used to transport the plating solution from the storage tank 1 to the titanium filter 2 for filtration. A pressure gauge 15 and a safety valve 22 are installed between titanium filter 2 and the third circulation pump 17. The pressure gauge 15 is used to monitor pressure changes during the filtration process, and the safety valve 22 is used to prevent system damage due to excessive pressure. The third circulation pump 17 is used to drive the platinum plating solution through the filtration system, controlling the flow rate to 1-10 L / min. The pump body is made of corrosion-resistant polytetrafluoroethylene or titanium alloy.

[0025] The plating tank 5 is used to store the filtered plating solution. The filtered plating solution is directly transported to the storage tank 1 to be filtered by the first circulation pump 6, so as to realize the continuous filtration and recycling of the plating solution and improve the efficiency of the electroplating process and the quality of the coating.

[0026] The control system is electrically connected to the titanium filter 2 and the first circulation pump 6, the second circulation pump 8, and the third circulation pump 17. It monitors the flow rate, pressure, and filtration status of the plating solution and automatically adjusts filtration parameters to maintain the stability of the filtration process. The control system includes a PLC controller and a human-machine interface (HMI). The PLC controller receives real-time data from the titanium filter 2 and the circulation pumps and performs automatic adjustments. The HMI displays filtration parameters and provides manual operation functions.

[0027] The flow rates of the first circulating pump 6, the second circulating pump 8, and the third circulating pump 17 range from 10 to 500 L / min, and the pressure ranges from 0.1 to 0.5 MPa, to meet the needs of electroplating processes of different scales.

[0028] The storage tank 1 to be filtered is equipped with a liquid level sensor, namely a liquid level gauge 20, and a temperature sensor. The liquid level sensor is used to monitor the liquid level change of the plating solution in real time, and the temperature sensor is used to monitor the temperature of the plating solution to ensure that the plating solution is filtered within the optimal temperature range.

[0029] The housings of all components in the system are made of corrosion-resistant stainless steel and coated with an anti-rust coating to improve the system's durability and corrosion resistance.

[0030] The high and low temperature cooling circulation device 16 can control the temperature of the medium in the jacket of the upper intermediate storage tank 10, so as to control the temperature of the plating solution in the intermediate storage tank 10.

[0031] The intermediate storage tank 10 can store the plating solution after removing large particles. It has a level gauge to display the liquid volume and a thermocouple 12 to display the temperature. The solenoid valve 13, flow meter 14, and pressure gauge 15 are used to display and control the flow rate and filtration pressure of the plating solution entering the titanium filter 2.

[0032] The working principle of this utility model is as follows: 1. Pretreatment: The platinum plating solution to be filtered is passed through the screen 18 and centrifuge 19 of the pretreatment unit to remove large particles in the storage tank 1. 2. Filtration: Pass the pretreated platinum plating solution through the titanium filter element 3 at a flow rate of 2-5 L / min, controlling the filtration temperature at 20-50℃ and the filtration pressure at 0.1-0.5 MPa; 3. Backwashing: Periodically backwash the titanium filter element 3 with deionized water from the deionized water storage tank 7 to restore its filtration performance.

[0033] The experimental results after operating the system based on the above system structure and working method are as follows: Results of the first test: solid particle removal rate was 99.2%, and the turbidity of the plating solution was reduced to 0.5 NTU; Results of the second test: organic matter removal rate reached 95%, and the purity of the plating solution was significantly improved; Results of the third test: the combined removal rate of solid particles and organic matter reached 98.5%, and the performance of the plating solution was restored to the level of a new solution; Results of the fourth test: solid particle removal rate was 99.5%, and the fluidity of the plating solution was significantly improved.

[0034] This invention optimizes the structure and process of titanium filter material to efficiently remove solid particles and impurities from platinum plating solution, thereby improving the purity and service life of the plating solution. Data from four experiments show that this invention has advantages such as high filtration efficiency, strong corrosion resistance, and simple operation, making it suitable for widespread application in related fields.

[0035] This invention has the following advantages: 1. It uses high-purity titanium fiber filter material, which has strong corrosion resistance and a long service life; 2. The multi-layer composite structure improves filtration efficiency and adsorption capacity, with a solid particle removal rate of over 99%; 3. The system has a compact structure, is easy to operate, and is suitable for large-scale industrial applications; 4. Compared with the prior art, the titanium filtration system of this invention is specifically developed for platinum plating solutions, and has higher applicability and technical advantages.

[0036] The above description is only for the appearance and method of this utility model and is not intended to limit the equipment and process of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model shall be included within the protection scope of this utility model.

Claims

1. A titanium filtration system for platinum plating solution, characterized in that: The system includes a filter tank (1), which is connected in sequence to a pretreatment unit, a titanium filter (2), and a plating tank (5). A first circulation pump (6) is provided between the plating tank (5) and the filter tank (1). A titanium filter element (3) is provided inside the titanium filter (2). The titanium filter element (3) is provided with multiple layers of filter screens, including a surface layer (31), a middle layer (32), and a support layer (33). A backwashing device (4) is provided below the titanium filter element (3). The backwashing device (4) is connected in sequence to a second circulation pump (8) and a deionized water storage tank (7).

2. The titanium filtration system for platinum plating solution according to claim 1, characterized in that: The pretreatment unit and the titanium filter (2) are connected in sequence by a third circulation pump (17) and an intermediate storage tank (10). The intermediate storage tank (10) is equipped with a heating interlayer medium (11) and a thermocouple (12). The intermediate storage tank (10) and the titanium filter (2) are also equipped with a solenoid valve (13), a flow meter (14), a pressure gauge (15) and a safety valve (22).

3. A titanium filtration system for platinum plating solution according to claim 1 or 2, characterized in that: The pretreatment unit includes a screen (18) and a centrifuge (19).

4. A titanium filtration system for platinum plating solution according to claim 3, characterized in that: The titanium filter (2) is provided with a slag discharge port (9) at the bottom.

5. A titanium filtration system for platinum plating solution according to claim 2, characterized in that: The intermediate storage tank (10) is connected to a high and low temperature cooling circulation device (16).

6. A titanium filtration system for platinum plating solution according to claim 5, characterized in that: The storage tank (1) to be filtered is equipped with a level gauge (20).

7. A titanium filtration system for platinum plating solution according to claim 6, characterized in that: The titanium filter (2), the first circulation pump (6), the second circulation pump (8) and the third circulation pump (17) are connected to a control system, which includes a PLC controller and a human-machine interface.

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