Heat treatment section with pH adjustment and formation plant

Abstract

The utility model belongs to the production equipment technical field of chemical foils, specifically relates to a heat treatment section and chemical equipment with pH regulation, including pH regulation system, and set up in the chemical tank, and pH regulation system is used to add the pH regulation solution evenly to the chemical tank, to adjust the pH of solution in the chemical tank, and pH regulation system includes mounting bracket, stirring device and uniform conveying device, and mounting bracket sets up in the chemical tank one side, and stirring device sets up on mounting bracket, and uniform conveying device sets up above the chemical tank, and uniform conveying device is connected with the discharge end of stirring device, and stirring device has the pH regulation solution in, and uniform conveying device includes conveying pump and dropper, and the import of conveying pump communicates with the discharge end of stirring device, and the outlet of conveying pump communicates with dropper, and dropper sets up above the chemical tank, and is perpendicular to the transport direction of chemical foils in the chemical tank, and a plurality of drop holes are evenly seted up along the length direction of dropper, and are used for adding the pH regulation solution evenly to the chemical tank.

Description

Technical Field

[0001] This utility model belongs to the technical field of chemical foil production equipment, specifically relating to a heat treatment section with pH adjustment and chemical formation equipment. Background Technology

[0002] Heat treatment of the alumina oxide foil is a core process for improving the performance of aluminum electrolytic capacitors. By performing high-temperature treatment at 440–540℃, the hydration resistance of the oxide film can be effectively enhanced, thereby extending the capacitor's service life. This treatment promotes the transformation of amorphous alumina into a crystalline structure, which not only improves the film's insulation performance and withstand voltage but also helps repair its internal defects.

[0003] In the heat treatment process, the forming tank serves as a key reaction vessel, providing a specific reaction environment for the formed foil. The tank contains a forming solution, through which aluminum foil is sequentially passed for electrochemical treatment. When preparing formed foils with different conductivity levels, the pH value of the forming solution needs to be adjusted.

[0004] Currently, the standard procedure involves operators directly adding the required pH adjuster into the formation tank in one go. However, this method can easily lead to drastic pH changes in localized areas of the formation solution. Such drastic pH changes can cause a sudden increase in conductivity, resulting in excessive current or even flashover, severely affecting the quality and performance consistency of the formed foil. Utility Model Content

[0005] In view of this, the present invention provides a heat treatment section and a formation device with pH adjustment to solve the above-mentioned technical problems caused by the drastic pH changes in local areas of the formation tank due to the artificial addition of pH adjusters in the prior art.

[0006] To achieve the above objectives, this application adopts the following approach: A heat treatment section with pH adjustment includes a formation tank and a pH adjustment system. The pH adjustment system is disposed on the formation tank and is used to uniformly add a pH adjustment solution into the formation tank to adjust the pH of the solution in the formation tank. The pH adjustment system includes a mounting frame, a stirring device, and a uniform conveying device. The mounting frame is disposed on one side of the formation tank, the stirring device is disposed on the mounting frame, and the uniform conveying device is disposed above the formation tank. The uniform conveying device is connected to the discharge end of the stirring device, and the stirring device contains the pH adjustment solution. The uniform conveying device includes a conveying pump and a dropper. The inlet of the conveying pump is connected to the discharge end of the stirring device, and the outlet of the conveying pump is connected to the dropper. The dropper is positioned above the formation tank and perpendicular to the transport direction of the formed foil in the formation tank. The dropper has several drip holes evenly distributed along its length for uniformly adding the pH adjustment solution into the formation tank.

[0007] Preferably, the delivery pump is a peristaltic pump.

[0008] Preferably, the uniform delivery device includes a support frame, which is connected to the mounting frame, and the dropper is positioned on the support frame by a number of fixing members.

[0009] Preferably, the stirring device includes a stirring tank and a stirring assembly. The stirring tank is mounted on the mounting frame and contains a pH adjustment solution. The stirring assembly is located inside the stirring tank and is used to stir the pH adjustment solution inside the stirring tank.

[0010] Preferably, the stirring assembly includes a driving component, a rotating rod, and a plurality of stirring components. The driving component is disposed at the bottom of the stirring tank, the rotating rod is connected to the driving component and is vertically disposed inside the stirring tank, and the plurality of stirring components are spaced apart on the rotating rod.

[0011] Preferably, it also includes a raw material adding device, the outlet of which is connected to the feed end of the stirring device, and the raw material adding device is used to add the raw material of the pH adjustment solution into the stirring device.

[0012] Preferably, the raw material adding device includes a solid material adding component and a liquid material adding component. The outlets of both the solid material adding component and the liquid material adding component are connected to the feed end of the stirring device. The solid material adding component is used to add solid material into the stirring device, and the liquid material adding component is used to add liquid material into the stirring device, for preparing the pH adjustment solution.

[0013] Preferably, the solid material adding component includes a storage bin and a screw conveyor. The outlet of the storage bin is connected to the feed end of the mixing device, and the screw conveyor is disposed inside the storage bin for conveying the solid material in the storage bin to the mixing device. The liquid material adding component includes a liquid material conveying pipe and a pump. The outlet of the pump is connected to one end of the liquid material conveying pipe, and the other end of the liquid material conveying pipe is connected to the feed end of the mixing device for conveying the liquid material to the mixing device.

[0014] Preferably, a liquid level sensor is installed inside the mixing tank, the liquid level sensor is electrically connected to the infusion pump, and the liquid level sensor is at a preset distance from the inlet of the mixing tank.

[0015] A chemical formation apparatus, comprising the aforementioned heat treatment section with pH adjustment.

[0016] In the aforementioned heat treatment section with pH adjustment, a stirring device is mounted on a frame on one side of the formation tank to continuously stir the pH adjustment solution inside, preventing sedimentation. A delivery pump draws the stirred pH adjustment solution from the stirring device and slowly delivers it to a dropper through its outlet. The dropper has several evenly spaced drop holes along its length, through which the pH adjustment solution is evenly added to the formation tank. As the formed foil is transported within the formation tank, the drop holes continuously and evenly add the pH adjustment solution to the solution in the tank, thereby adjusting the pH value of the solution in the formation tank. Compared with the prior art of directly adding the pH adjuster into the formation tank, the device provided in this application can avoid drastic changes in the pH of local areas of the formation solution in the formation tank, prevent a sudden increase in conductivity, avoid excessive current or even flashover, and improve the quality and performance consistency of the formed foil. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the pH adjustment system in this utility model.

[0018] Figure 2 This is an isometric view of the pH adjustment system in this invention.

[0019] Figure 3 This is a schematic diagram of the pH adjustment system in this utility model from another angle.

[0020] Figure 4 This is a bottom view of the pH adjustment system in this utility model.

[0021] Figure 5 This is a cross-sectional view of the stirring assembly in this utility model.

[0022] Figure 6 This is a schematic diagram of the chemical formation equipment in this utility model.

[0023] In the figure, the components are: chemical formation equipment 10, chemical formation tank 20, pH adjustment system 30, mounting frame 100, stirring device 200, stirring tank 210, liquid level sensor 211, stirring assembly 220, driving component 221, rotating rod 222, stirring component 223, uniform conveying device 300, conveying pump 310, fixing component 331, drip tube 320, drip hole 321, support frame 330, raw material adding device 400, solid material adding assembly 410, storage bin 411, screw conveyor 412, liquid material adding assembly 420, liquid material conveying pipe 421, and liquid pump 422. Detailed Implementation

[0024] To facilitate understanding of this application, a more comprehensive description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are also given. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please refer to Figures 1 to 6 In one specific embodiment, a heat treatment section with pH adjustment includes a formation tank 20 and a pH adjustment system 30. The pH adjustment system 30 is disposed on the formation tank 20 and is used to uniformly add a pH adjustment solution into the formation tank 20 to adjust the pH of the solution in the formation tank 20. The pH adjustment system 30 includes a mounting frame 100, a stirring device 200, and a uniform conveying device 300. The mounting frame 100 is disposed on one side of the formation tank 20, the stirring device 200 is disposed on the mounting frame 100, and the uniform conveying device 300 is disposed above the formation tank 20. The uniform conveying device 300 is connected to the discharge end of the stirring device 200. The stirring device 200 contains a pH adjustment solution, which may be a citric acid solution. The uniform conveying device 300 includes a conveying pump 310 and a dropper 320. The inlet of the conveying pump 310 is connected to the discharge end of the stirring device 200, and the outlet of the conveying pump 310 is connected to the dropper 320. The dropper 320 is positioned above the formation tank 20 and perpendicular to the transport direction of the formed foil in the formation tank 20. The dropper 320 has a plurality of drip holes 321 evenly opened along its length for uniformly adding the pH adjustment solution into the formation tank 20.

[0027] The formation tank 20 in this application is generally a rectangular tank used to hold the formation solution and transport the formation foil. The mounting bracket 100 described in this application can be fixed to one side of the formation tank 20. The mounting bracket 100 can be welded from metal and has sufficient strength and stability. In the uniform delivery device 300, the delivery pump 310 can be a high-precision industrial delivery pump 310, capable of precisely controlling the flow rate of the solution. The length of the dropper 320 is customized according to the width of the formation tank 20, and a drip hole 321 with a diameter of 2-4 mm is opened at regular intervals (e.g., 5 cm) along the length of the dropper 320.

[0028] In use, the prepared pH adjustment solution can be stored in the stirring device 200 in advance. Then, the stirring device 200 is started to stir the pH adjustment solution inside, ensuring uniform mixing and avoiding precipitation or uneven concentration. The stirring device 200 is installed on the mounting bracket 100 on one side of the formation tank 20, providing a stable foundation for subsequent solution delivery. The inlet of the conveying pump 310 in the uniform conveying device 300 is connected to the outlet of the stirring device 200. Thus, when the conveying pump 310 is started, the stirred pH adjustment solution is drawn out from the stirring device 200 and conveyed to the dropper 320 through its outlet. The dropper 320 has a plurality of drip holes 321 evenly opened along its length. The pH adjustment solution is evenly dripped into the formation tank 20 through the drip holes 321. As the formed foil is transported in the formation tank 20, the dropper 320 continuously and evenly adds the pH adjustment solution to the solution in the tank, thereby adjusting the pH value of the solution in the formation tank 20. Compared with the prior art of directly adding the pH adjuster into the formation tank 20, the device provided in this application can avoid drastic changes in the pH of the local area of ​​the formation solution in the formation tank 20, and will not cause a sudden increase in conductivity, avoid excessive current or even flashover, and improve the consistency of the quality and performance of the formed foil.

[0029] In a preferred embodiment, the delivery pump 310 is a peristaltic pump. The peristaltic pump slowly squeezes the pH adjustment solution into the dropper 320, resulting in a low flow rate of the pH adjustment solution reaching the dropper 320. This allows the pH adjustment solution to be added slowly and evenly to the formation tank 20 through the drip orifice 321, avoiding a high flow rate of the pH adjustment solution reaching the dropper 320 and causing rapid dripping into the formation tank 20, which could lead to drastic pH changes in localized areas of the formation solution. When the delivery pump 310 is a peristaltic pump, the dropper 320 can be a flexible tube.

[0030] To achieve stable fixation of the uniform delivery device 300, in one specific embodiment, the uniform delivery device 300 includes a support frame 330, which is connected to the mounting frame 100. The dropper 320 is positioned on the support frame 330 by a plurality of fixing members 331. The support frame 330 can be made of the same metal material as the mounting frame 100 and is tightly connected to the mounting frame 100 by bolts to ensure a firm and reliable connection. The fixing members 331 can be threaded U-shaped clamps, the inner diameter of which matches the outer diameter of the dropper 320. A plurality of U-shaped clamps are used to tightly fix the dropper 320 to the support frame 330.

[0031] In this embodiment, the support frame 330 is securely connected to the mounting frame 100, and with the help of several fixing parts 331, the dropper 320 is positioned accurately. This ensures that the dropper 320 will not shift its position due to vibration, solution impact, or other factors during operation, thus enhancing the stability of the entire uniform delivery device 300. This allows the pH adjustment solution to be accurately added to the preset area at all times, improving the accuracy and stability of solution addition.

[0032] In one specific embodiment, the stirring device 200 includes a stirring tank 210 and a stirring assembly 220. The stirring tank 210 is disposed on the mounting bracket 100 and contains a pH adjustment solution. The stirring assembly 220 is located inside the stirring tank 210 and is used to stir the pH adjustment solution inside the stirring tank 210.

[0033] Preferably, the stirring assembly 220 includes a driving member 221, a rotating rod 222, and a plurality of stirring members 223. The driving member 221 is disposed at the bottom of the stirring tank 210. The rotating rod 222 is connected to the driving member 221 and is vertically disposed inside the stirring tank 210. The plurality of stirring members 223 are spaced apart on the rotating rod 222.

[0034] The mixing tank 210 can be a cylindrical stainless steel container, mounted on the mounting bracket 100, with good corrosion resistance and sealing performance to ensure that the pH adjustment solution does not leak; the drive component 221 can be a stirring motor, and the shape and number of the stirring components 223 are designed according to the size of the mixing tank 210 and the properties of the solution, for example, using three-bladed or four-bladed blades, which can generate strong stirring force to fully mix the solution.

[0035] During operation, the stirring motor is started, driving the rotating rod 222 and the stirring element 223 to rotate, thus stirring the pH adjustment solution in the stirring tank 210. The operator can adjust the speed of the stirring motor according to the properties of the solution and the stirring requirements to achieve the best stirring effect. This structure is simple and reliable, effectively achieving uniform stirring of the pH adjustment solution and providing strong support for pH adjustment throughout the heat treatment section.

[0036] Furthermore, it also includes a raw material adding device 400, the outlet of which is connected to the feed end of the stirring device 200, and the raw material adding device 400 is used to add the raw material of the pH adjustment solution into the stirring device 200.

[0037] The raw material adding device 400 includes a solid material adding component 410 and a liquid material adding component 420. The outlets of both the solid material adding component 410 and the liquid material adding component 420 are connected to the feed end of the stirring device 200. The solid material adding component 410 is used to add solid material into the stirring device 200, and the liquid material adding component 420 is used to add liquid material into the stirring device 200, for preparing the pH adjusting solution.

[0038] For example, the solid material is citric acid powder, and the liquid material is water. The two are mixed in a preset ratio to obtain the pH adjustment solution. The ratio can be determined according to the actual situation.

[0039] In a preferred embodiment, the solid material adding component 410 includes a storage bin 411 and a screw conveyor 412. The outlet of the storage bin 411 is connected to the feed end of the mixing device 200. The screw conveyor 412 is disposed within the storage bin 411 and is used to convey the solid material in the storage bin 411 to the mixing device 200. The screw conveyor 412 may consist of a screw shaft and screw blades. The screw shaft is mounted in the storage bin 411 via bearings, and one end is connected to a drive motor. The drive motor may be a variable frequency speed control motor to precisely control the rotational speed of the screw conveyor 412 according to production needs. The shape and pitch of the screw blades are selected according to the characteristics of the solid material.

[0040] In this embodiment, the screw conveyor 412 can transport solid material from the storage silo 411 to the mixing device 200 at a relatively stable and accurate speed. By controlling the rotational speed of the screw conveyor 412, the amount of solid material transported per unit time can be accurately adjusted, thereby achieving precise control over the amount of solid material added.

[0041] In a preferred embodiment, the liquid material addition assembly 420 includes a liquid material delivery pipe 421 and a delivery pump 422. The outlet of the delivery pump 422 is connected to one end of the liquid material delivery pipe 421, and the other end of the liquid material delivery pipe 421 is connected to the feed end of the stirring device 200 for conveying liquid material into the stirring device 200.

[0042] The infusion pump 422 can accurately regulate the flow rate of the liquid material. By adjusting the speed of the infusion pump 422 or the flow control valve, the liquid material can be stably delivered to the mixing device 200 at a set flow rate, avoiding manual batching and feeding, improving production efficiency and saving labor.

[0043] To prevent excessive pH adjustment solution from overflowing from the mixing tank 210, a level sensor 211 is further installed inside the mixing tank 210. The level sensor 211 is electrically connected to the infusion pump 422, and the level sensor 211 is located at a preset distance (e.g., 10 cm) from the inlet of the mixing tank 210. The level sensor 211 can generally be a capacitive level sensor or a float-type level sensor. Capacitive level sensors detect the liquid level by measuring the change in capacitance between the liquid and the sensor, offering advantages such as high measurement accuracy and fast response. Float-type level sensors, on the other hand, use a float that moves up and down with the liquid level to control the on / off state of a switch, thus detecting the liquid level; they are simple in structure and low in cost. For example, by electrically connecting the level sensor 211 to the infusion pump 422 via a wire, when the liquid level rises to a suitable height, the level sensor 211 sends a signal to stop the infusion pump 422, thereby preventing the pH adjustment solution from overflowing due to excessive liquid level.

[0044] This application also provides a chemical formation device 10, which includes the above-mentioned heat treatment section with pH adjustment, and has the beneficial effects of the above embodiments. To avoid repetition, the embodiments of the present invention will not be described again here.

[0045] It should be noted that the formation device 10 provided in the embodiments of the present invention and the heat treatment section with pH adjustment provided in the embodiments of the present invention are based on the same application concept. Therefore, the specific implementation of this embodiment can refer to the aforementioned implementation of the heat treatment section with pH adjustment, and has the same or similar beneficial effects. Repeated parts will not be described again.

[0046] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A heat treatment section with pH adjustment, comprising a formation tank, characterized in that, It also includes a pH adjustment system, which is installed on the formation tank. The pH adjustment system is used to uniformly add a pH adjustment solution into the formation tank to adjust the pH of the solution in the formation tank. The pH adjustment system includes a mounting frame, a stirring device, and a uniform conveying device. The mounting frame is installed on one side of the formation tank, the stirring device is installed on the mounting frame, and the uniform conveying device is installed above the formation tank. The uniform conveying device is connected to the discharge end of the stirring device, and the stirring device contains the pH adjustment solution. The uniform conveying device includes a conveying pump and a dropper. The inlet of the conveying pump is connected to the discharge end of the stirring device, and the outlet of the conveying pump is connected to the dropper. The dropper is positioned above the formation tank and perpendicular to the transport direction of the formed foil in the formation tank. The dropper has several drip holes evenly distributed along its length for uniformly adding the pH adjustment solution into the formation tank.

2. The heat treatment section with pH adjustment according to claim 1, characterized in that, The pump used for delivery is a peristaltic pump.

3. The heat treatment section with pH adjustment according to claim 1, characterized in that, The uniform delivery device includes a support frame, which is connected to the mounting frame, and the dropper is positioned on the support frame by a number of fixing components.

4. The heat treatment section with pH adjustment according to claim 1, characterized in that, The stirring device includes a stirring tank and a stirring assembly. The stirring tank is mounted on the mounting frame and contains a pH adjustment solution. The stirring assembly is located inside the stirring tank and is used to stir the pH adjustment solution inside the stirring tank.

5. The heat treatment section with pH adjustment according to claim 4, characterized in that, The stirring assembly includes a driving component, a rotating rod, and several stirring components. The driving component is disposed at the bottom of the stirring tank. The rotating rod is connected to the driving component and is vertically disposed inside the stirring tank. The several stirring components are spaced apart on the rotating rod.

6. The heat treatment section with pH adjustment according to claim 1, characterized in that, It also includes a raw material adding device, the outlet of which is connected to the feed end of the stirring device, and the raw material adding device is used to add the raw material of the pH adjustment solution into the stirring device.

7. The heat treatment section with pH adjustment according to claim 6, characterized in that, The raw material adding device includes a solid material adding component and a liquid material adding component. The outlets of both the solid material adding component and the liquid material adding component are connected to the feed end of the stirring device. The solid material adding component is used to add solid material into the stirring device, and the liquid material adding component is used to add liquid material into the stirring device to prepare the pH adjustment solution.

8. The heat treatment section with pH adjustment according to claim 7, characterized in that, The solid material addition assembly includes a storage bin and a screw conveyor. The outlet of the storage bin is connected to the feed end of the mixing device. The screw conveyor is disposed inside the storage bin and is used to transport the solid material in the storage bin to the mixing device. The liquid material addition assembly includes a liquid material delivery pipe and a delivery pump. The outlet of the delivery pump is connected to one end of the liquid material delivery pipe, and the other end of the liquid material delivery pipe is connected to the feed end of the mixing device and is used to transport the liquid material to the mixing device.

9. The heat treatment section with pH adjustment according to claim 8, characterized in that, The stirring device is equipped with a liquid level sensor, which is electrically connected to the infusion pump. The liquid level sensor is located at a preset distance from the inlet of the stirring device.

10. A chemical formation device, characterized in that, Includes the heat treatment section with pH adjustment as described in any one of claims 1 to 9.

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