A copper sulfate recovery machine

By introducing a vertical tank, agitator, annular plate, and cooling pipe structure into the copper sulfate recovery machine, combined with the automatic scraping design of the annular scraper, the problem of copper sulfate solution crystals adhering to the tank wall has been solved, achieving efficient continuous production.

CN224474721UActive Publication Date: 2026-07-10SHENZHEN GAINBASE P C B CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN GAINBASE P C B CO LTD
Filing Date
2025-05-12
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing technologies, copper sulfate solution crystallizes on the walls of stirred tanks and is difficult to remove, leading to reduced heat transfer efficiency and frequent shutdowns for cleaning, which affects continuous production efficiency.

Method used

The structure employs a vertical tank, agitator, annular plate, and cooling pipes. By utilizing motor stirring and the spiral distribution of cooling pipes, combined with the design of annular scrapers and power components, it achieves directional crystallization and automatic scraping of crystals, preventing crystals from adhering to the tank wall.

Benefits of technology

It improves the crystallization efficiency of copper sulfate solution, solves the problem of crystals adhering to the tank wall requiring shutdown for cleaning, and significantly improves the efficiency of continuous production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a copper sulfate recovery machine, include: stirring device, including vertical jar, be located in the stirring paddle of vertical jar, drive the motor of stirring paddle agitates, the vertical jar inside holds microetching solution, the stirring paddle is used for stirring the microetching solution in the vertical jar, crystallization device, including annular board, set up in the cooling pipe of annular board inside, the radial outer surface of annular board with the radial inner surface of vertical jar is matched, the cooling pipe is along the circumferential spiral of annular board and extends, scrape out device, including annular scraper, drive the first power part of annular scraper and lift, the inboard of annular scraper with annular board is matched, the inboard of annular scraper holds the stirring paddle, the inboard of annular scraper moves downward to scrape out the crystalline body of annular board inboard. The utility model can solve the problem that the jar wall crystal of traditional equipment is difficult to fall off, and the continuous production efficiency is improved significantly.
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Description

Technical Field

[0001] This utility model relates to the technical field of chemical equipment, and in particular to a copper sulfate recovery machine. Background Technology

[0002] In the micro-etching process of circuit board pretreatment, the circuit board undergoes surface copper micro-etching in the main micro-etching tank. During the micro-etching process, copper sulfate solution is generated, which increases the copper ion content in the micro-etching solution. Micro-etching solution with high concentration of copper ions will affect the micro-etching quality. Therefore, it is necessary to control the copper ion content. In the existing copper sulfate recycling process, the micro-etching solution containing copper sulfate solution is usually injected into a stirring tank and stirred. At a certain temperature, the copper sulfate solution forms a crystal layer on the surface of the tank wall due to the increase of supersaturation. These crystals have strong adhesion to the tank wall and are difficult to peel off naturally by conventional stirring or gravity. The residual crystals not only occupy the effective reaction volume and reduce the heat transfer efficiency, but also require frequent shutdowns for manual cleaning, which seriously restricts continuous production. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a copper sulfate recovery machine that solves the problem of difficult crystal removal from the tank walls of traditional equipment, significantly improving continuous production efficiency.

[0004] A copper sulfate recovery machine according to an embodiment of the present invention includes: a stirring device comprising a vertical tank, a stirring paddle located inside the vertical tank, and a motor for driving the stirring paddle to stir; the vertical tank contains a micro-etching solution, and the stirring paddle is used to stir the micro-etching solution inside the vertical tank; a crystallization device comprising an annular plate and a cooling pipe disposed inside the annular plate; the radial outer surface of the annular plate matches the radial inner surface of the vertical tank; the cooling pipe extends spirally along the circumference of the annular plate; the two ends of the cooling pipe are an inlet and an outlet, respectively; the inlet is used to introduce coolant, and the outlet is used to discharge coolant; and a scraping device comprising an annular scraper and a first power component for driving the annular scraper to rise and fall; the annular scraper is matched with the inner side of the annular plate, and the inner side of the annular scraper accommodates the stirring paddle; the annular scraper moves downward to scrape out the crystals on the inner side of the annular plate.

[0005] A copper sulfate recovery machine according to an embodiment of the present invention has at least the following beneficial effects:

[0006] 1. This utility model, by setting up a vertical tank, a stirring paddle, a motor, an annular plate, and cooling pipes, uses the motor to drive the stirring paddle to agitate the liquid inside the vertical tank, causing the micro-etching liquid to flow. The cooling pipes are evenly distributed on the annular plate in a spiral manner, and the cooling pipes introduce coolant through the inlet, causing the temperature of the annular plate to drop. The outlet discharges the cooled liquid after absorbing heat, causing the copper sulfate solution to crystallize directionally along the inner wall of the annular plate, which is beneficial to improving the crystallization efficiency of the copper sulfate solution.

[0007] 2. This utility model, by setting up an annular scraper and a first power component, ensures that the annular scraper is precisely matched with the inner wall of the annular plate. The first power component drives the annular scraper to rise and fall, allowing the stirring paddle to pass through the interior of the annular scraper. The stirring paddle and the annular scraper do not interfere with each other. Furthermore, the annular scraper directly scrapes off the crystals attached to the annular plate. After the crystals are scraped off, the copper sulfate solution can quickly crystallize on the inner wall of the annular plate, solving the problem of traditional equipment requiring shutdown for cleaning due to crystals adhering to the tank wall, and significantly improving the efficiency of continuous production.

[0008] According to an embodiment of the present invention, a copper sulfate recovery machine is provided on the inner side of the annular scraper, with a plurality of suspension rods and upright rods connected to the ends of the suspension rods. The upright rods extend from the inside of the vertical tank to the outside, and the top of the upright rods are connected to the first power component.

[0009] According to an embodiment of the present invention, a copper sulfate recovery machine is provided, wherein the first power component is a cylinder, the cylinder is vertically disposed on the outside of the vertical tank, the extended end of the cylinder is disposed facing upward, the extended end of the cylinder is provided with a connecting frame, and the extended end of the cylinder is connected to the top of the upright rod through the connecting frame.

[0010] According to an embodiment of the present invention, a copper sulfate recovery machine is provided with a guide sleeve on the outer periphery of the vertical tank, and a guide rod is provided on the connecting frame. The guide rod is vertically arranged and is slidably connected to the inside of the guide sleeve.

[0011] According to an embodiment of the present invention, a copper sulfate recovery machine has multiple liquid-dispensing plates arranged on the inner side of the annular scraper, and the liquid-dispensing plates are arranged horizontally.

[0012] According to an embodiment of the present invention, a copper sulfate recovery machine is provided at the bottom of the vertical tank, with a conical discharge port and a discharge pipe connected to the discharge port, and the discharge pipe is equipped with a switch valve.

[0013] According to an embodiment of the present invention, a copper sulfate recovery machine is provided, wherein the bottom end of the discharge pipe is connected to an inclined pipe, and the bottom end of the inclined pipe is provided with a receiving box.

[0014] According to an embodiment of the present invention, a copper sulfate recovery machine includes a stirring paddle comprising a vertical shaft and a plurality of stirring shafts disposed on the radial outer surface of the vertical shaft, wherein the plurality of stirring shafts are arranged along the axial direction of the vertical shaft.

[0015] According to an embodiment of the present invention, a copper sulfate recovery machine is provided at the bottom of the vertical tank, and a support platform is provided at the bottom of the support platform.

[0016] According to an embodiment of the present invention, a copper sulfate recovery machine is provided with a liquid injection pipe at the top of the vertical tank, the liquid injection pipe being used to inject a micro-etching solution into the vertical tank.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the rising structure of the annular scraper in a copper sulfate recovery machine according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 The diagram shows a schematic of the descending annular scraper in a copper sulfate recovery machine.

[0021] Figure 3 This is a top view of the annular scraper of a copper sulfate recovery machine according to an embodiment of the present invention.

[0022] Attached reference numerals: 100-vertical tank, 110-stirring paddle, 120-motor, 130-ring plate, 140-cooling pipe, 150-liquid inlet, 160-liquid outlet, 170-ring scraper, 180-suspension rod, 190-vertical rod, 200-cylinder, 210-connecting frame, 220-guide sleeve, 230-guide rod, 240-liquid deflector, 250-discharge pipe, 260-switch valve, 270-slanted pipe, 280-receiving box, 290-vertical shaft, 300-stirring shaft, 310-support platform, 320-support foot, 330-liquid injection pipe. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] A copper sulfate recovery machine according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0028] Reference Figure 1 The present invention aims to provide an embodiment of a copper sulfate recovery machine.

[0029] A copper sulfate recovery machine according to an embodiment of this utility model, referring to... Figure 1 and Figure 2 The system includes a stirring device and a crystallization device. The stirring device includes a vertical tank 100, a stirring paddle 110 located inside the vertical tank 100, and a motor 120 that drives the stirring paddle 110 to stir. The vertical tank 100 contains a micro-etching liquid, and the stirring paddle 110 is used to stir the micro-etching liquid inside the vertical tank 100. The crystallization device includes an annular plate 130 and a cooling pipe 140 disposed inside the annular plate 130. The radial outer surface of the annular plate 130 matches the radial inner surface of the vertical tank 100. The cooling pipe 140 extends spirally along the circumference of the annular plate 130. The two ends of the cooling pipe 140 are an inlet 150 and an outlet 160, respectively. The inlet 150 is used to introduce coolant, and the outlet 160 is used to discharge coolant.

[0030] It is understood that this utility model, by setting up a vertical tank 100, a stirring paddle 110, a motor 120, an annular plate 130, and a cooling pipe 140, uses the motor 120 to drive the stirring paddle 110 to agitate, causing the micro-etching liquid in the vertical tank 100 to flow. The cooling pipe 140 is evenly distributed on the annular plate 130 in a spiral manner, and the cooling pipe 140 is supplied with coolant through the liquid inlet 150, which causes the temperature of the annular plate 130 to drop. The liquid outlet discharges the cooled liquid after absorbing heat, causing the copper sulfate solution to crystallize directionally along the inner wall of the annular plate 130, which is beneficial to improving the crystallization efficiency of the copper sulfate solution.

[0031] A copper sulfate recovery machine according to an embodiment of this utility model, referring to... Figure 1 and Figure 2 It also includes a scraping device, which includes an annular scraper 170 and a first power component that drives the annular scraper 170 to rise and fall. The annular scraper 170 is matched with the inner side of the annular plate 130. The inner side of the annular scraper 170 accommodates the stirring paddle 110. The annular scraper 170 moves downward to scrape out the crystals on the inner side of the annular plate 130.

[0032] It is understood that this utility model, by setting up an annular scraper 170 and a first power component, precisely matches the inner wall of the annular plate 130. The first power component drives the lifting and lowering of the annular scraper 170, and the stirring paddle 110 can pass through the interior of the annular scraper 170. The stirring paddle 110 and the annular scraper 170 will not interfere with each other. Furthermore, the annular scraper 170 directly scrapes off the crystals attached to the annular plate 130. After the crystals are scraped off the annular plate 130, the copper sulfate solution can quickly crystallize on the inner wall of the annular plate 130, solving the problem of traditional equipment requiring shutdown for cleaning due to crystals adhering to the tank wall, and significantly improving the efficiency of continuous production.

[0033] In some embodiments of this utility model, the stirring paddle 110 includes a vertical shaft 290 and a plurality of stirring shafts 300 disposed on the radial outer surface of the vertical shaft 290, the plurality of stirring shafts 300 being arranged along the axial direction of the vertical shaft 290.

[0034] It is understandable that using multiple stirring shafts 300 to stir the micro-etching solution can accelerate its flow rate, prevent uneven concentration of the micro-etching solution inside the vertical tank 100, and improve crystallization efficiency.

[0035] In some embodiments of this utility model, a support platform 310 is provided at the bottom of the vertical tank 100, and a plurality of support feet 320 are provided at the bottom of the support platform 310, thereby increasing the height of the vertical tank 100 and facilitating the arrangement of a discharge structure at the bottom of the vertical tank 100.

[0036] In some embodiments of this utility model, a liquid injection pipe 330 is provided on the top of the vertical tank 100. The liquid injection pipe 330 is used to inject micro-etching liquid into the interior of the vertical tank 100. The liquid injection pipe 330 injects micro-etching liquid with copper ion content into the interior of the vertical tank 100.

[0037] In some embodiments of this utility model, the inner side of the annular scraper 170 is provided with a plurality of suspension rods 180 and upright rods 190 connected to the ends of the suspension rods 180. The upright rods 190 extend from the inside of the upright tank 100 to the outside, and the top of the upright rods 190 is connected to the first power component.

[0038] Understandably, the annular scraper 170 is connected to the external first power component by several suspension rods 180 and upright rods 190, which ensures the stability of the annular plate 130 while avoiding the first power component being arranged inside the vertical tank 100.

[0039] In some embodiments of this utility model, the first power component is a cylinder 200. The cylinder 200 is vertically arranged on the outside of the vertical tank 100, with the extended end of the cylinder 200 facing upward. A connecting frame 210 is provided on the extended end of the cylinder 200, and the extended end of the cylinder 200 is connected to the top of the upright 190 through the connecting frame 210.

[0040] It is understandable that the cylinder 200 can be used to extend and retract to move the connecting frame 210 up and down, so that the connecting frame 210 can move the upright 190 up and down, thereby moving the annular scraper 170 up and down. This eliminates the need to place the cylinder 200 on the top of the vertical tank 100, thus reducing the overall height of the recycling device.

[0041] In some embodiments of this utility model, a guide sleeve 220 is provided on the outer periphery of the vertical tank 100, and a guide rod 230 is provided on the connecting frame 210. The guide rod 230 is vertically arranged and is slidably connected to the inside of the guide sleeve 220.

[0042] Understandably, the sliding cooperation between the guide rod 230 and the guide sleeve 220 can limit the horizontal displacement of the connecting frame 210, prevent the annular scraper 170 from shifting or jamming due to uneven force during lifting, and improve scraping accuracy and equipment reliability.

[0043] In some embodiments of this utility model, reference is made to Figure 3 Multiple liquid-dispensing plates 240 are provided on the inner side of the annular scraper 170, and the liquid-dispensing plates 240 are horizontally arranged.

[0044] Understandably, the horizontal liquid-dispensing plate 240, along with the annular scraper 170, moves up and down, disturbing the micro-etching liquid and accelerating the flow of the micro-etching liquid inside the vertical tank 100. This is beneficial for the rapid crystallization of copper sulfate solution. Furthermore, the up-and-down flow of copper sulfate solution helps reduce the adhesion of crystals to the inside of the scraper, thereby improving the crystal recovery rate.

[0045] In some embodiments of this utility model, the bottom of the vertical tank 100 is provided with a conical discharge port and a discharge pipe 250 connected to the discharge port, and the discharge pipe 250 is provided with a switch valve 260.

[0046] Understandably, the crystals scraped off by the annular scraper 170 pass through the conical discharge port, allowing for rapid and concentrated discharge of the crystals and avoiding the problem of crystal residue on the bottom wall of the tank. In addition, the on / off valve 260 controls the discharge rhythm.

[0047] In some embodiments of this utility model, the bottom end of the discharge pipe 250 is connected to an inclined pipe 270, and the bottom end of the inclined pipe 270 is provided with a receiving box 280. Therefore, the inclined pipe 270 guides the crystal to slide into the receiving box 280, which facilitates the quick replacement of the receiving box 280 and improves the waste collection efficiency.

[0048] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A copper sulfate recovery machine, characterized in that, include: The stirring device includes a vertical tank (100), a stirring paddle (110) located inside the vertical tank (100), and a motor (120) for driving the stirring paddle (110) to stir. The vertical tank (100) contains a micro-etching liquid, and the stirring paddle (110) is used to stir the micro-etching liquid inside the vertical tank (100). The crystallization apparatus includes an annular plate (130) and a cooling pipe (140) disposed inside the annular plate (130). The radial outer surface of the annular plate (130) matches the radial inner surface of the vertical tank (100). The cooling pipe (140) extends spirally along the circumference of the annular plate (130). The two ends of the cooling pipe (140) are a liquid inlet (150) and a liquid outlet (160), respectively. The liquid inlet (150) is used to introduce coolant, and the liquid outlet (160) is used to discharge coolant. The scraping device includes an annular scraper (170) and a first power component that drives the annular scraper (170) to rise and fall. The annular scraper (170) is matched with the inner side of the annular plate (130). The inner side of the annular scraper (170) accommodates the stirring paddle (110). The annular scraper (170) moves downward to scrape out the crystals on the inner side of the annular plate (130). The inner side of the annular scraper (170) is provided with a plurality of suspension rods (180) and a vertical rod (190) connected to the end of the suspension rods (180). The vertical rod (190) extends from the inside of the vertical tank (100) to the outside, and the top of the vertical rod (190) is connected to the first power component. The first power component is a cylinder (200), which is vertically disposed on the outside of the vertical tank (100). The extended end of the cylinder (200) is disposed facing upward, and a connecting frame (210) is provided on the extended end of the cylinder (200). The extended end of the cylinder (200) is connected to the top of the upright (190) through the connecting frame (210). The outer periphery of the vertical tank (100) is provided with a guide sleeve (220), and the connecting frame (210) is provided with a guide rod (230). The guide rod (230) is vertically arranged and is slidably connected to the inside of the guide sleeve (220). The inner side of the annular scraper (170) is provided with a plurality of liquid-dispelling plates (240), which are horizontally arranged.

2. The copper sulfate recovery machine according to claim 1, characterized in that, The bottom of the vertical tank (100) is provided with a conical discharge port and a discharge pipe (250) connected to the discharge port. The discharge pipe (250) is provided with a switch valve (260).

3. A copper sulfate recovery machine according to claim 2, characterized in that, The bottom end of the discharge pipe (250) is connected to an inclined pipe (270), and the bottom end of the inclined pipe (270) is provided with a receiving box (280).

4. A copper sulfate recovery machine according to claim 1, characterized in that, The impeller (110) includes a vertical shaft (290) and a plurality of stirring shafts (300) disposed on the radial outer surface of the vertical shaft (290), the plurality of stirring shafts (300) being arranged along the axial direction of the vertical shaft (290).

5. A copper sulfate recovery machine according to claim 1, characterized in that, The bottom of the vertical tank (100) is provided with a support platform (310), and the bottom of the support platform (310) is provided with multiple support feet (320).

6. A copper sulfate recovery machine according to claim 1, characterized in that, The top of the vertical tank (100) is provided with a liquid injection pipe (330), which is used to inject micro-etching liquid into the vertical tank (100).