Purification device and purification method for producing copper stripping liquid

Abstract

The invention discloses a purification device and a purification method for producing copper stripping liquid, and relates to the technical field of copper stripping liquid purification, the purification device for producing the copper stripping liquid comprises a mixing tank and a cabinet body, the cabinet body is internally provided with two filtering tanks, and the cabinet body is provided with a discharge pump; the input end of the discharging pump is connected with the control valve through a material suction pipe, the output end of the discharging pump is connected with the input end of one filtering tank through a material conveying pipe, and the output end, connected with the material conveying pipe, of the bottom of the filtering tank is connected with the input end of the top of the other filtering tank through a conveying piece; the copper stripping liquid can sequentially pass through the two filtering tanks to be filtered by opening the control valve and starting the discharging pump, the filtered liquid can be detected through the detector, when the liquid filtering effect is not ideal, the backflow pipe can be opened through the reversing valve, and the copper stripping liquid can be filtered through the backflow pipe. And unqualified liquid is sent back into the mixing tank and is filtered again.

Description

Technical Field

[0001] The invention relates to the technical field of copper stripping solution purification, in particular to a purification device and a purification method for producing copper stripping solution. Background Art

[0002] Copper stripping solutions are chemical agents used to remove deposits (such as photoresist and residue) from copper surfaces. They protect the substrate through dissolution or decomposition. For example, copper stripping solutions separate copper from the substrate through chemical reactions, making them suitable for removing photoresist residue and stripping copper plating. They can also be used in electronics manufacturing to quickly dissolve copper traces on circuit boards for precise stripping. Their core ingredients include organic solvents, alkaline substances, copper corrosion inhibitors, and surfactants, ensuring a balance between copper protection and stripping efficiency. They are primarily used in processes such as microelectronics manufacturing and copper foil production, removing contaminants from the copper surface through wet processing to avoid damaging the substrate and ensure the accuracy of subsequent processes.

[0003] When purifying the copper stripping solution, the existing copper stripping solution purification device easily forms precipitates during the reaction process, but the filtration effect is not ideal, thereby affecting the subsequent use of the copper stripping solution. In addition, there is no detection function for the filtered liquid, which easily affects the use effect of the finished copper stripping solution. Summary of the Invention

[0004] The object of the present invention is to provide a purification device and a purification method for producing a copper stripping solution, so as to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the purification device for producing copper stripping liquid includes a mixing tank and a cabinet, a plurality of feed pipes are installed on the top of the mixing tank, and a control valve is installed on the bottom of the mixing tank, a circulation component is provided on the mixing tank, two filter tanks are installed in the cabinet, and a discharge pump is installed on the cabinet, the input end of the discharge pump is connected to the control valve through a suction pipe, and the output end of the discharge pump is connected to the input end of one of the filter tanks through a delivery pipe, the bottom output end of the filter tank connected to the delivery pipe is connected to the top input end of the other filter tank through a conveying component, and a detector is installed on the bottom output end of the other filter tank, a delivery pump is installed on the cabinet, and the input end of the delivery pump is connected to the detector through a delivery pipe. The invention relates to a copper stripping liquid production system, wherein the copper stripping liquid is produced by a plurality of feed pipes and a plurality of raw liquids are added into the mixing tank according to their mass. After the mixing is completed, the copper stripping liquid in the mixing tank can be filtered through two filter tanks in sequence by opening the control valve and starting the discharge pump, and the filtered liquid can be detected by the detector. When the liquid filtering effect is not ideal, the reflux pipe can be opened through the reversing valve to return the unqualified liquid to the mixing tank for re-filtration, thereby realizing multi-stage filtration of the liquid and ensuring the production quality of the copper stripping liquid.

[0006] As a preferred technical solution, the circulation component includes a lower connecting pipe, an upper connecting pipe, a circulation pump and a delivery pipe; A lower connecting pipe is installed at the lower part of the mixing tank, and an upper connecting pipe is installed at the upper part of the mixing tank. A circulation pump is installed on the lower connecting pipe. The input end of the circulation pump is connected to the lower connecting pipe. A delivery pipe is installed on the output end of the circulation pump. The delivery pipe is connected to the upper connecting pipe. When the reaction is carried out in the mixing tank, by starting the circulation pump, the liquid at the bottom of the mixing tank can be transported to the inner upper part of the mixing tank through the delivery pipe and the upper connecting pipe through the lower connecting pipe, thereby realizing the circulation and stirring of the liquid in the mixing tank.

[0007] As a preferred technical solution, the conveying member includes a transfer pump, a first infusion tube and a second infusion tube; A transfer pump is installed in the cabinet, and the input end of the transfer pump is connected to the output end at the bottom of the filter tank connected to the material delivery pipe through a first infusion pipe, and the output end of the transfer pump is connected to the top input end of another filter tank through a second infusion pipe. When the filter tank is working, the transfer pump can be started to send the liquid that has undergone primary filtration in one filter tank through the first infusion pipe and the second infusion pipe to the other filter tank for re-filtration, which can improve the filtering effect of the liquid.

[0008] As an optimal technical solution, a fixing rod is installed on the upper part of one side of the mixing tank, a liquid collecting tank is installed on the fixing rod, an air box is installed on the liquid collecting tank, an air outlet is opened on the upper part of the mixing tank, an air inlet is opened on one side of the air box near the air outlet, the air outlet and the air inlet are connected through an air pipe, an opening is opened on the top of the air box, an air hood is installed at the upper end of the opening, a purifier is installed on the air box, the input end of the purifier is connected to the upper part of the air hood through an exhaust pipe, and the top of the air hood is installed with A driving motor, wherein the lower output shaft of the driving motor passes through the air hood, and a rotating shaft is installed on the lower output shaft of the driving motor, a turntable is installed on the rotating shaft, and a plurality of fan blades are installed on the circumferential side wall of the turntable. When purification is carried out in the mixing tank, the driving motor can be started to drive the fan blades to rotate through the rotating shaft and the turntable, so that the air hood and the air box can absorb the exhaust gas formed in the mixing tank through the air pipe, and can send the exhaust gas into the purifier for purification through the exhaust pipe, thereby avoiding environmental pollution.

[0009] The top of the air filter press is connected to the bottom of the air purifier by the hydraulic cylinder, and the hydraulic cylinder is connected to the hydraulic cylinder to drive the pump to drive the pump to produce an electric shock.

[0010] As an optimal technical solution, a cylinder body is installed on the top of the mixing tank, a pressure-sensitive sensor is installed on the inner top of the cylinder body, and an extrusion plate is slidably installed in the cylinder body, a sliding hole is opened on the top of the mixing tank, a sliding rod is slidably installed in the sliding hole, the upper end of the sliding rod is connected to the bottom of the extrusion plate, and the lower end of the sliding rod is installed with a floating plate, and the floating plate is connected to the inner top of the mixing tank through a connecting spring, and the pressure-sensitive sensor is electrically connected to the drive motor. When the air pressure changes with the amount of waste gas generated by the purification reaction in the mixing tank, as the air pressure gradually increases, the air pressure can exert an extrusion force on the floating plate, and force transmission can be formed on the pressure-sensitive sensor under the transmission action of the sliding rod and the extrusion plate, so that the pressure-sensitive sensor can automatically control the drive motor to drive the rotation speed of the rotating shaft to increase according to the gradual increase in the amount of waste gas, which is beneficial to automatically improve the waste gas absorption efficiency according to the increase in the amount of waste gas.

[0011] As an optimal technical solution, a cover shell is installed on the top of the air hood, and two magnetic plates are symmetrically installed on the inner top of the cover shell, and the two magnetic plates are respectively positive and negative poles. A rotating column is installed on the upper output shaft of the drive motor, and multiple cutting plates are installed on the rotating column. A pole is rotatably installed on the top of the cover shell, and the lower end of the pole is concentrically connected to the upper end of the rotating column, and a rotating joint is installed on the upper end of the pole. A current sensor is installed on the air box, and the current sensor is connected to the rotating joint through a wire. When the drive motor is running, the drive motor can drive multiple cutting plates to cut the magnetic lines of force between the two magnetic plates through the rotating column to form an induced current. When the rotation rate of the drive motor is controlled according to the exhaust gas volume, the intensity of the induced current formed can be controlled accordingly according to the change in the exhaust gas volume, so that the current sensor can perform corresponding control according to the intensity of the induced current.

[0012] As an optimal technical solution, an electric telescopic rod is installed on the side of the air box away from the air inlet, the electric telescopic rod is electrically connected to the current sensor, a transmission sleeve is installed on the electric telescopic rod, a drive shaft is installed on the transmission sleeve, a fixed plate is installed on the air inlet, a plurality of fixed air holes are provided in a circumferential array on the fixed plate, an air baffle is rotatably installed on the side of the fixed plate away from the air inlet, a plurality of movable air holes are provided in a circumferential array on the air baffle, the plurality of fixed air holes correspond to the plurality of movable air holes one by one and are the same size, a rotating rod is installed at the center of the circle on the side of the air baffle away from the fixed plate, a curved path is provided on the rotating rod, and the drive shaft slides and penetrates the curved path An angle sensor is installed at the end of the rotating rod away from the air baffle, and the angle sensor is electrically connected to the electric telescopic rod. The current sensor can control the electric telescopic rod to drive the transmission sleeve to move according to the intensity of the induced current, so that the transmission sleeve drives the drive shaft to move synchronously. The driving shaft uses the squeezing effect of the curve on the rotating rod to make the rotating rod drive the air baffle to rotate, and the angle sensor can be used to detect that after the rotating rod rotates to a specific angle, the electric telescopic rod is controlled to stop operating, thereby realizing the overlap of the moving air hole and the fixed air hole, which is convenient for automatically controlling the overlap of the moving air hole and the fixed air hole according to the change of the exhaust gas volume, thereby realizing automatic control of the exhaust volume according to the change of the exhaust gas volume.

[0013] The present application provides a purification method for producing a copper stripping solution purification device, the steps of which are: Step 1: Add the raw liquid into the mixing tank according to mass through multiple feeding pipes and start the circulation part; Step 2: After mixing is completed, open the control valve and start the discharge pump; Step 3: Send the liquid in the mixing tank into the two filter tanks in the cabinet in turn for filtration; Step 4: The filtered liquid is tested by a detector, and the unqualified liquid can be sent back to the mixing tank for re-filtration.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When copper stripping liquid is produced, multiple raw liquids are added into the mixing tank according to mass through multiple feed pipes. After mixing, the copper stripping liquid in the mixing tank can be filtered through two filter tanks in sequence by opening the control valve and starting the discharge pump. The filtered liquid can be tested by a detector. When the liquid filtration effect is not ideal, the reflux pipe can be opened through the reversing valve to send the unqualified liquid back to the mixing tank for re-filtration, thereby realizing multi-stage filtration of the liquid and ensuring the production quality of the copper stripping liquid.

[0015] When purification is carried out in the mixing tank, the drive motor can be started to drive the fan blades to rotate through the rotating shaft and turntable, so that the air hood and air box can absorb the exhaust gas formed in the mixing tank through the air pipe, and can send the exhaust gas into the purifier for purification through the exhaust pipe, thereby avoiding environmental pollution.

[0016] The present application can realize the pressure changes caused by the waste gas volume generated by the purification reaction. As the air pressure gradually increases, the pressure-sensitive sensor can automatically control the drive motor to increase the speed of the rotating shaft according to the gradual increase in the waste gas volume, which is beneficial to automatically improve the waste gas absorption efficiency according to the increase in the waste gas volume.

[0017] The present application can realize corresponding control of the intensity of the induced current formed according to the change of the exhaust gas volume, and can control the overlap degree of the mobile air holes and the fixed air holes according to the change of the intensity of the induced current, and can realize automatic control of the exhaust volume according to the change of the exhaust gas volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall partial cross-section structure of the present invention; Figure 3 It is a schematic structural diagram of a mixing tank of the present invention; Figure 4 It is a schematic diagram of the cross-section structure of the mixing tank of the present invention; Figure 5 A schematic diagram of an air baffle according to the present invention; Figure 6 yes Figure 3 A in the figure shows the enlarged structural diagram; Figure 7 yes Figure 4 A schematic diagram of the structure at point B in FIG. Figure 8 yes Figure 7 The enlarged structural diagram at C in FIG.

[0019] In the figure: 1. Mixing tank; 2. Feed pipe; 3. Control valve; 4. Cabinet; 5. Discharge pump; 6. Suction pipe; 7. Filter tank; 8. Feed pipe; 9. Detector; 10. Delivery pump; 11. Feed pipe; 12. Reversing valve; 13. Discharge pipe; 14. Return pipe; 15. Lower pipe; 16. Upper pipe; 17. Circulation pump; 18. Delivery pipe; 19. Transfer pump; 20. First infusion pipe; 21. Second infusion pipe 2201, fixing rod; 2202, liquid collecting tank; 2203, air box; 2204, air inlet; 2205, air outlet; 2206, air pipe; 2207, opening; 2208, air hood; 2209, exhaust pipe; 2210, purifier; 2211, drive motor; 2212, rotating shaft; 2213, turntable; 2214, fan blades; 2215, swivel; 2216, connecting rod; 2217, breathable water filter membrane; 2218, reflux pump; 2219, downpipe; 2220, return pipe; 2301, cylinder body; 2302, pressure-sensitive sensor; 2303, sliding hole; 2304, sliding rod; 2305, floating plate; 2306, connecting spring; 2307, extrusion plate; 2401. Cover; 2402. Magnetic plate; 2403. Rotating column; 2404. Cutting plate; 2405. Pole; 2406. Rotating joint; 2407. Current sensor; 2408. Electric telescopic rod; 2409. Transmission sleeve; 2410. Drive shaft; 2411. Fixed plate; 2412. Fixed air hole; 2413. Air baffle; 2414. Movable air hole; 2415. Rotating rod; 2416. Curved track; 2417. Angle sensor; 2418. Wire. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example: Figures 1-8As shown, the present invention provides a technical solution for a purification device and a purification method for producing copper stripping liquid, the purification device for producing copper stripping liquid includes a mixing tank 1 and a cabinet 4, a plurality of feed pipes 2 are installed on the top of the mixing tank 1, and a control valve 3 is installed on the bottom of the mixing tank 1, a circulation part is provided on the mixing tank 1, two filter tanks 7 are installed in the cabinet 4, and a discharge pump 5 is installed on the cabinet 4, the input end of the discharge pump 5 is connected to the control valve 3 through a suction pipe 6, and the output end of the discharge pump 5 is connected to the input end of one of the filter tanks 7 through a delivery pipe 8, the bottom output end of the filter tank 7 connected to the delivery pipe 8 is connected to the top input end of the other filter tank 7 through a delivery part, and a detector 9 is installed on the bottom output end of the other filter tank 7, and a delivery pump 10 is installed on the cabinet 4, and the input end of the delivery pump 10 is connected to the detector 9 The copper stripping liquid is connected through a feed pipe 11, and a reversing valve 12 is installed on the output end of the delivery pump 10, and a discharge pipe 13 is installed on one output end of the reversing valve 12. One output end of the reversing valve 12 is connected to the top of the mixing tank 1 through a reflux pipe 14. The detector 9 is electrically connected to the reversing valve 12. When copper stripping liquid is produced, multiple raw liquids are added to the mixing tank 1 according to their mass through multiple feed pipes 2. After mixing is completed, the copper stripping liquid in the mixing tank 1 can be filtered through two filter tanks 7 in sequence by opening the control valve 3 and starting the discharge pump 5, and the filtered liquid can be detected by the detector 9. When the liquid filtration effect is unsatisfactory, the reflux pipe 14 can be opened through the reversing valve 12 to send the unqualified liquid back to the mixing tank 1 for re-filtration, thereby realizing multi-stage filtration of the liquid and ensuring the production quality of the copper stripping liquid.

[0022] like Figure 1-Figure 3 As shown, the circulation component includes a lower connecting pipe 15, an upper connecting pipe 16, a circulation pump 17 and a delivery pipe 18; A lower connecting pipe 15 is installed at the lower part of the mixing tank 1, and an upper connecting pipe 16 is installed at the upper part of the mixing tank 1. A circulating pump 17 is installed on the lower connecting pipe 15. The input end of the circulating pump 17 is connected to the lower connecting pipe 15. A delivery pipe 18 is installed on the output end of the circulating pump 17. The delivery pipe 18 is connected to the upper connecting pipe 16. When the reaction is carried out in the mixing tank 1, by starting the circulating pump 17, the liquid at the bottom of the mixing tank 1 can be transported to the inner upper part of the mixing tank 1 through the delivery pipe 18 and the upper connecting pipe 16 through the lower connecting pipe 15, thereby realizing the circulating stirring of the liquid in the mixing tank 1.

[0023] like Figure 2 As shown, the conveying member includes a transfer pump 19, a first infusion tube 20 and a second infusion tube 21; A transfer pump 19 is installed in the cabinet 4. The input end of the transfer pump 19 is connected to the bottom output end of the filter tank 7 connected to the feed pipe 8 through a first infusion pipe 20, and the output end of the transfer pump 19 is connected to the top input end of another filter tank 7 through a second infusion pipe 21. When the filter tank 7 is working, the transfer pump 19 can be started to send the liquid that has undergone primary filtration in one filter tank 7 through the first infusion pipe 20 and the second infusion pipe 21 to another filter tank 7 for re-filtration, which can improve the filtering effect of the liquid.

[0024] As shown in the figure, a fixing rod 2201 is installed on the upper part of one side of the mixing tank 1, a liquid collecting tank 2202 is installed on the fixing rod 2201, an air box 2203 is installed on the liquid collecting tank 2202, an air outlet 2205 is provided on the upper part of the mixing tank 1, an air inlet 2204 is provided on one side of the air box 2203 near the air outlet 2205, the air outlet 2205 and the air inlet 2204 are connected through an air pipe 2206, an opening 2207 is provided on the top of the air box 2203, an air hood 2208 is installed at the upper end of the opening 2207, a purifier 2210 is installed on the air box 2203, the input end of the purifier 2210 is connected to the upper part of the air hood 2208 through an exhaust pipe 2209, and the top of the air hood 2208 A driving motor 2211 is installed, and the lower output shaft of the driving motor 2211 passes through the air hood 2208, and a rotating shaft 2212 is installed on the lower output shaft of the driving motor 2211, and a turntable 2213 is installed on the rotating shaft 2212. A plurality of fan blades 2214 are installed on the circumferential side wall of the turntable 2213. When purification is carried out in the mixing tank 1, the driving motor 2211 can be started to drive the fan blades 2214 to rotate through the rotating shaft 2212 and the turntable 2213, so that the air hood 2208 and the air box 2203 can absorb the exhaust gas formed in the mixing tank 1 through the air pipe 2206, and can send the exhaust gas into the purifier 2210 for purification through the exhaust pipe 2209, so as to avoid causing environmental pollution.

[0025] The inner lower part of the air cover 2208 is rotatably installed with a swivel 2215, and the swivel 2215 is connected to the rotating shaft 2212 through a connecting rod 2216. The upper part of the swivel 2215 is connected to the lower part of the turntable 2213 through a breathable water filter membrane 2217. The breathable water filter membrane 2217 is in a cone shape. A plurality of seepage holes are opened at the bottom of the air box 2203. A reflux pump 2218 is installed on the mixing tank 1. The input end of the reflux pump 2218 is connected to the bottom of the liquid collecting tank 2202 through a downpipe 2219, and the output end of the reflux pump 2218 is connected to the top of the mixing tank 1 through a return liquid pipe. The pipe 2220 is connected. When the driving motor 2211 is running, the turntable 2213 and the rotating ring 2215 can be driven to rotate synchronously through the rotating shaft 2212 and the connecting rod 2216, so that the synchronous rotation of the breathable water filter membrane 2217 can be achieved. The centrifugal force during the rotation of the breathable water filter membrane 2217 can be used to separate the liquid in the exhaust gas to the bottom of the air box 2203, so that it can flow into the liquid collecting tank 2202 through the seepage hole. After the purification is completed, the reflux pump 2218 can be started to send the liquid in the liquid collecting tank 2202 back to the mixing tank 1 through the downpipe 2219 and the return pipe 2220.

[0026] A cylinder 2301 is installed on the top of the mixing tank 1, a pressure-sensitive sensor 2302 is installed on the inner top of the cylinder 2301, and an extrusion plate 2307 is slidably installed in the cylinder 2301. A sliding hole 2303 is opened on the top of the mixing tank 1, and a slide rod 2304 is slidably installed in the sliding hole 2303. The upper end of the slide rod 2304 is connected to the bottom of the extrusion plate 2307, and a floating plate 2305 is installed on the lower end of the slide rod 2304. The floating plate 2305 is connected to the inner top of the mixing tank 1 through a connecting spring 2306. The pressure-sensitive sensor 2302 is installed on the inner top of the cylinder 2301, and an extrusion plate 2307 is slidably installed in the cylinder 2301. The sensor 2302 is electrically connected to the drive motor 2211. When the air pressure in the mixing tank 1 changes due to the amount of waste gas generated by the purification reaction, as the air pressure gradually increases, the air pressure can exert an extrusion force on the floating plate 2305, and force is transmitted to the pressure-sensitive sensor 2302 under the transmission action of the slide bar 2304 and the extrusion plate 2307, so that the pressure-sensitive sensor 2302 can automatically control the drive motor 2211 to drive the rotation speed of the rotating shaft 2212 to increase according to the gradual increase in the amount of waste gas, which is beneficial to automatically improve the waste gas absorption efficiency according to the increase in the amount of waste gas.

[0027] The top of the gas hood 2208 is equipped with a cover 2401, and two magnetic plates 2402 are symmetrically installed on the inner top of the cover 2401. The two magnetic plates 2402 are respectively positive and negative poles. A rotating column 2403 is installed on the upper output shaft of the drive motor 2211, and a plurality of cutting plates 2404 are installed on the rotating column 2403. A pole 2405 is rotatably installed on the top of the cover 2401. The lower end of the pole 2405 is concentrically connected to the upper end of the rotating column 2403, and a rotary joint 2406 is installed on the upper end of the pole 2405. The gas box 22 A current sensor 2407 is installed on 03, and the current sensor 2407 is connected to the rotary joint 2406 through a wire 2418. When the drive motor 2211 is running, the drive motor 2211 can drive multiple cutting plates 2404 through the rotating column 2403 to cut the magnetic lines of force between the two magnetic plates 2402 to form an induced current. When the rotation rate of the drive motor 2211 is controlled according to the amount of exhaust gas, the intensity of the induced current formed can be controlled accordingly according to the change in the amount of exhaust gas, which facilitates the current sensor 2407 to perform corresponding control according to the intensity of the induced current.

[0028] An electric telescopic rod 2408 is installed on the side of the air box 2203 away from the air inlet 2204. The electric telescopic rod 2408 is electrically connected to the current sensor 2407. A transmission sleeve 2409 is installed on the electric telescopic rod 2408. A drive shaft 2410 is installed on the transmission sleeve 2409. A fixing plate 2411 is installed on the air inlet 2204. A plurality of fixed air holes 2412 are arranged in a circumferential array on the fixing plate 2411. An air baffle 2413 is rotatably mounted on the side away from the air inlet 2204. A plurality of movable air holes 2414 are formed in a circular array on the air baffle 2413. The plurality of fixed air holes 2412 correspond to the plurality of movable air holes 2414 in a one-to-one manner and are of the same size. A rotating rod 2415 is mounted at the center of the circle on the side of the air baffle 2413 away from the fixed plate 2411. A curved path 2416 is formed on the rotating rod 2415. The drive shaft 2410 slides through the curved path 2416. An angle sensor 2417 is installed at the end of the rotating rod 2415 away from the air baffle 2413. The angle sensor 2417 is electrically connected to the electric telescopic rod 2408. The current sensor 2407 can control the electric telescopic rod 2408 to drive the transmission sleeve 2409 to move according to the intensity of the induced current, so that the transmission sleeve 2409 drives the drive shaft 2410 to move synchronously. The driving shaft 2410 uses the squeezing effect of the curved path 2416 on the rotating rod 2415 to make the rotating rod 2415 drive the air baffle 2413 to rotate. The angle sensor 2417 can detect when the rotating rod 2415 rotates to a specific angle and control the electric telescopic rod 2408 to stop operating, thereby achieving the overlap between the moving air hole 2414 and the fixed air hole 2412, thereby improving the exhaust gas discharge volume, facilitating the automatic control of the overlap between the moving air hole 2414 and the fixed air hole 2412 according to the change in the exhaust gas volume, and achieving the automatic control of the exhaust gas volume according to the change in the exhaust gas volume.

[0029] The present application provides a purification method for producing a copper stripping solution purification device, the steps of which are: Step 1: Add the stock solution into the mixing tank 1 through multiple feed pipes 2 according to mass, and start the circulation part; Step 2: After mixing is completed, open the control valve 3 and start the discharge pump 5; Step 3: The liquid in the mixing tank 1 is sequentially fed into the two filter tanks 7 of the cabinet 4 for filtering; Step 4: The filtered liquid is tested by the detector 9, and the unqualified liquid can be sent back to the mixing tank 1 for re-filtration.

[0030] Working principle of the present invention: When copper stripping liquid is produced, multiple raw liquids are added into the mixing tank 1 according to their mass through multiple feed pipes 2. After mixing, the copper stripping liquid in the mixing tank 1 can be filtered through two filter tanks 7 in sequence by opening the control valve 3 and starting the discharge pump 5. The filtered liquid can be tested by the detector 9. When the liquid filtering effect is unsatisfactory, the return pipe 14 can be opened through the reversing valve 12 to send the unqualified liquid back to the mixing tank 1 for re-filtration, thereby realizing multi-stage filtration of the liquid and ensuring the production quality of the copper stripping liquid.

[0031] When the mixing tank 1 is being purified, the driving motor 2211 can be started to drive the fan blades 2214 to rotate through the rotating shaft 2212 and the turntable 2213, so that the air hood 2208 and the air box 2203 can absorb the exhaust gas formed in the mixing tank 1 through the air pipe 2206, and can send the exhaust gas to the purifier 2210 for purification through the exhaust pipe 2209, thereby avoiding environmental pollution. The connecting rod 2216 can drive the turntable 2213 and the rotating ring 2215 to rotate synchronously, thereby realizing the synchronous rotation of the breathable water filter membrane 2217. The centrifugal force during the rotation of the breathable water filter membrane 2217 can be used to separate the liquid in the exhaust gas to the bottom of the air box 2203, so that it can flow into the liquid collecting tank 2202 through the seepage hole. After the purification is completed, the reflux pump 2218 can be started to send the liquid in the liquid collecting tank 2202 back to the mixing tank 1 through the downpipe 2219 and the return pipe 2220.

[0032] When the air pressure in the mixing tank 1 changes due to the waste gas generated by the purification reaction, as the air pressure gradually increases, the air pressure can exert an extrusion force on the floating plate 2305, and force is transmitted to the pressure-sensitive sensor 2302 under the transmission action of the slide bar 2304 and the extrusion plate 2307, so that the pressure-sensitive sensor 2302 can automatically control the driving motor 2211 to drive the rotating shaft 2212 to increase its speed according to the gradual increase in the waste gas volume, which is beneficial to automatically improve the waste gas absorption efficiency according to the increase in the waste gas volume.

[0033] When the drive motor 2211 is running, the drive motor 2211 can drive the multiple cutting plates 2404 to cut the magnetic flux lines between the two magnetic plates 2402 through the rotating column 2403 to form an induced current. When the rotation rate of the drive motor 2211 is controlled according to the amount of exhaust gas, the intensity of the induced current formed can be controlled accordingly according to the change in the amount of exhaust gas. The current sensor 2407 can control the electric telescopic rod 2408 to drive the transmission sleeve 2409 to move according to the intensity of the induced current, so that the transmission sleeve 2409 drives the drive shaft 2410 to move synchronously. The squeezing effect of the shaft 2410 on the curved path 2416 on the rotating rod 2415 can cause the rotating rod 2415 to drive the air baffle 2413 to rotate, and can control the electric telescopic rod 2408 to stop operating after detecting that the rotating rod 2415 has rotated to a specific angle through the angle sensor 2417, thereby achieving the overlap between the mobile air hole 2414 and the fixed air hole 2412, increasing the exhaust gas discharge, and facilitating automatic control of the overlap between the mobile air hole 2414 and the fixed air hole 2412 according to changes in the exhaust gas volume, thereby achieving automatic control of the exhaust volume according to changes in the exhaust gas volume.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A purification device for producing copper stripping solution, characterized in that: The purification device for producing copper stripping liquid comprises a mixing tank (1) and a cabinet (4), wherein a plurality of feed pipes (2) are installed on the top of the mixing tank (1), and a control valve (3) is installed on the bottom of the mixing tank (1), and a circulation part is provided on the mixing tank (1), two filter tanks (7) are installed in the cabinet (4), and a discharge pump (5) is installed on the cabinet (4), the input end of the discharge pump (5) is connected to the control valve (3) through a suction pipe (6), and the output end of the discharge pump (5) is connected to the input end of one of the filter tanks (7) through a delivery pipe (8), and the bottom output end of the filter tank (7) connected to the delivery pipe (8) is connected to the control valve (3). The end is connected to the top input end of another filter tank (7) through a conveying member, and the bottom output end of the other filter tank (7) is installed with a detector (9), a delivery pump (10) is installed on the cabinet (4), the input end of the delivery pump (10) is connected to the detector (9) through a feeding pipe (11), and a reversing valve (12) is installed on the output end of the delivery pump (10), a discharge pipe (13) is installed on one output end of the reversing valve (12), one output end of the reversing valve (12) is connected to the top of the mixing tank (1) through a return pipe (14), and the detector (9) is electrically connected to the reversing valve (12).

2. A purification device for producing a copper stripping solution according to claim 1, characterized in that: The circulation member comprises a lower connecting pipe (15), an upper connecting pipe (16), a circulation pump (17) and a delivery pipe (18); A lower connecting pipe (15) is installed at the lower portion of the mixing tank (1), and an upper connecting pipe (16) is installed at the upper portion of the mixing tank (1). A circulating pump (17) is installed on the lower connecting pipe (15), and the input end of the circulating pump (17) is connected to the lower connecting pipe (15). A delivery pipe (18) is installed on the output end of the circulating pump (17), and the delivery pipe (18) is connected to the upper connecting pipe (16).

3. The purification device for producing a copper stripping solution according to claim 1, characterized in that: The conveying member includes a transfer pump (19), a first infusion tube (20) and a second infusion tube (21); A transfer pump (19) is installed in the cabinet (4), and the input end of the transfer pump (19) is connected to the bottom output end of the filter tank (7) connected to the material delivery pipe (8) through a first delivery pipe (20), and the output end of the transfer pump (19) is connected to the top input end of another filter tank (7) through a second delivery pipe (21).

4. The purification device for producing a copper stripping solution according to claim 1, characterized in that: A fixing rod (2201) is installed on the upper part of one side of the mixing tank (1), a liquid collecting tank (2202) is installed on the fixing rod (2201), and an air box (2203) is installed on the liquid collecting tank (2202). An air outlet (2205) is provided on the upper part of the mixing tank (1), and an air inlet (2204) is provided on one side of the air box (2203) near the air outlet (2205). The air outlet (2205) and the air inlet (2204) are connected via an air pipe (2206). An opening (2207) is provided on the top of the air box (2203), and a gas outlet (2207) is provided at the upper end of the opening (2207). An air hood (2208) is installed, a purifier (2210) is installed on the air box (2203), the input end of the purifier (2210) is connected to the upper part of the air hood (2208) through an exhaust pipe (2209), a driving motor (2211) is installed on the top of the air hood (2208), the lower output shaft of the driving motor (2211) passes through the air hood (2208), and a rotating shaft (2212) is installed on the lower output shaft of the driving motor (2211), a rotating disk (2213) is installed on the rotating shaft (2212), and a plurality of fan blades (2214) are installed on the circumferential side wall of the rotating disk (2213).

5. A purification device for producing a copper stripping solution according to claim 4, characterized in that: A rotating ring (2215) is rotatably mounted on the inner lower portion of the air hood (2208), the rotating ring (2215) being connected to the rotating shaft (2212) via a connecting rod (2216), the upper portion of the rotating ring (2215) being connected to the lower portion of the turntable (2213) via a breathable water filter membrane (2217), the breathable water filter membrane (2217) being in the shape of a cone, a plurality of liquid seepage holes being provided at the bottom of the air box (2203), a reflux pump (2218) being mounted on the mixing tank (1), the input end of the reflux pump (2218) being connected to the bottom of the liquid collecting tank (2202) via a lower liquid pipe (2219), and the output end of the reflux pump (2218) being connected to the top of the mixing tank (1) via a return liquid pipe (2220).

6. A purification device for producing a copper stripping solution according to claim 5, characterized in that: A cylinder body (2301) is installed on the top of the mixing tank (1), a pressure-sensitive sensor (2302) is installed on the inner top of the cylinder body (2301), and an extrusion plate (2307) is slidably installed in the cylinder body (2301). A sliding hole (2303) is opened on the top of the mixing tank (1), and a sliding rod (2304) is slidably installed in the sliding hole (2303). The upper end of the sliding rod (2304) is connected to the bottom of the extrusion plate (2307), and a floating plate (2305) is installed on the lower end of the sliding rod (2304). The floating plate (2305) is connected to the inner top of the mixing tank (1) via a connecting spring (2306). The pressure-sensitive sensor (2302) is electrically connected to the drive motor (2211).

7. A purification device for producing a copper stripping solution according to claim 6, characterized in that: A cover shell (2401) is installed on the top of the air hood (2208), and two magnetic plates (2402) are symmetrically installed on the inner top of the cover shell (2401), and the two magnetic plates (2402) are respectively positive and negative magnetic poles. A rotating column (2403) is installed on the upper output shaft of the drive motor (2211), and a plurality of cutting plates (2404) are installed on the rotating column (2403). A pole (2405) is rotatably installed on the top of the cover shell (2401), and the lower end of the pole (2405) is concentrically connected to the upper end of the rotating column (2403), and a rotary joint (2406) is installed on the upper end of the pole (2405). A current sensor (2407) is installed on the air box (2203), and the current sensor (2407) is connected to the rotary joint (2406) via a wire (2418).

8. A purification device for producing a copper stripping solution according to claim 7, characterized in that: An electric telescopic rod (2408) is installed on the side of the air box (2203) away from the air inlet (2204), and the electric telescopic rod (2408) is electrically connected to the current sensor (2407). A transmission sleeve (2409) is installed on the electric telescopic rod (2408), and a drive shaft (2410) is installed on the transmission sleeve (2409). A fixed plate (2411) is installed on the air inlet (2204), and a plurality of fixed air holes (2412) are arranged in a circular array on the fixed plate (2411). An air baffle (2413) is rotatably installed on the side of the fixed plate (2411) away from the air inlet (2204). The air baffle A plurality of movable air holes (2414) are provided in a circular array on the plate (2413), and the plurality of fixed air holes (2412) correspond one to one with the plurality of movable air holes (2414) and are of the same size. A rotating rod (2415) is installed at the center of a circle on a side of the air baffle plate (2413) away from the fixed plate (2411), and a curved path (2416) is provided on the rotating rod (2415). The driving shaft (2410) slides and penetrates the curved path (2416). An angle sensor (2417) is installed at the end of the rotating rod (2415) away from the air baffle plate (2413), and the angle sensor (2417) is electrically connected to the electric telescopic rod (2408).

9. A purification method for producing a copper stripping solution according to any one of claims 1 to 8, comprising the steps of: Step 1: adding the raw liquid into the mixing tank (1) by mass through multiple feeding pipes (2) and starting the circulation part; Step 2: After mixing is completed, open the control valve (3) and start the discharge pump (5); Step 3: The liquid in the mixing tank (1) is sequentially fed into the two filter tanks (7) of the cabinet (4) for filtering; Step 4: The filtered liquid is tested by a detector (9), and unqualified liquid can be sent back to the mixing tank (1) for re-filtration.

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