Ion exchange device for removing copper and nickel by purifying cobaltous sulfate solution
By installing a stirring mechanism and a separation mechanism inside the reaction tank, the problem of inconvenient separation of residue and solution during the purification of cobalt sulfate solution to remove copper and nickel is solved, achieving efficient solid-liquid separation and cleaning, and improving the ease of operation and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-03-17
AI Technical Summary
Existing ion exchange devices for purifying copper and nickel from cobalt sulfate solution are inconvenient to separate from the solution after the reaction, resulting in complex operation and low efficiency.
An apparatus comprising a reaction vessel and a separation mechanism is designed. The reaction vessel is equipped with a stirring mechanism, and the separation mechanism includes liquid and solid separation chambers. The stirring mechanism promotes ion exchange reaction, and the separation mechanism achieves solid-liquid separation. A filter frame and a gear transmission system are used to achieve rapid separation and cleaning.
This method achieves thorough mixing of cobalt sulfate solution and ion exchanger, rapid separation and removal of residues, thus improving purification efficiency and ease of operation.
Smart Images
Figure CN121669328A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ion exchange technology, and more specifically to an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel. Background Technology
[0002] Cobalt sulfate is an inorganic compound with the chemical formula CoSO4. It is a rose-red crystalline powder and often exists in various hydrate forms. Currently, in order to achieve sustainable development and reduce production costs, cobalt and nickel waste is often recycled. High-quality cobalt sulfate solutions and other products are separated and extracted from raw materials such as waste lithium-ion batteries, cobalt and nickel-containing waste, and cobalt ore to meet production needs. During the cobalt and nickel waste treatment process, a mixed cobalt and nickel sulfate solution is generated, which needs to be deeply purified. The key technical principle is to use ion exchange technology to produce high-quality cobalt sulfate solution and purify the cobalt sulfate solution.
[0003] Ion exchange devices are typically used to purify cobalt sulfate solutions to remove copper and nickel. Ion exchange devices utilize the exchange of ions from a solid ion exchanger with ions in a dilute solution to extract or remove certain ions from the solution. This is a unit operation belonging to the mass transfer separation process. However, existing ion exchange devices for purifying cobalt sulfate solutions to remove copper and nickel often fail to effectively and quickly separate the remaining residue and the residue generated during ion exchange from the ion exchange solution after the reaction and exchange. Furthermore, the solid and liquid components cannot be removed after separation, making the operation of the device quite cumbersome.
[0004] In view of this, we propose an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel. Summary of the Invention
[0005] Therefore, the present invention provides an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel, in order to solve the above-mentioned problems in the prior art.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] According to a first aspect of the present invention, an ion exchange device for purifying and removing copper and nickel from a cobalt sulfate solution includes a reaction vessel, a stirring mechanism provided on the upper inner wall of the reaction vessel, and a separation mechanism provided on the lower end of the reaction vessel. The separation mechanism includes a separation chamber, a liquid separation chamber provided on one side of the inner wall of the separation chamber, and a solid separation chamber provided on the other side of the inner wall of the separation chamber.
[0008] Furthermore, the stirring mechanism includes a first motor, with a stirring shaft fixedly connected to the lower end of the first motor, and the output shaft of the first motor fixedly connected to the stirring shaft.
[0009] Furthermore, the outer wall of the stirring shaft is provided with spiral stirring blades, and stirring plates are fixedly installed on all four sides of the outer wall of the stirring shaft.
[0010] Furthermore, a first liquid outlet pipe is fixedly installed at the lower end of the reaction vessel, and a first valve is fixedly installed on the outer wall of the first liquid outlet pipe.
[0011] Furthermore, a feed hopper is provided at the upper end of the reaction vessel, and a second valve is fixedly installed on the outer wall of the feed hopper.
[0012] Furthermore, a slot is provided on the inner wall of the separation chamber between the liquid separation chamber and the solid separation chamber, and sliding grooves are provided on both sides of the inner wall of the separation chamber.
[0013] Furthermore, a filter frame is provided inside the liquid separation chamber, and a rotating shaft is fixedly installed on both sides of the filter frame. A mounting frame is provided on the outer wall of the filter frame, and the rotating shaft is rotatably installed on the inner wall of the mounting frame. A driving part is provided on one inner wall of the mounting frame.
[0014] Furthermore, a rack is fixedly installed on the side of the mounting frame near the solid separation chamber. There are two racks, and the racks are slidably installed on the inner wall of the groove.
[0015] Furthermore, a third gear is provided on one side of each of the two racks, and there are eight third gears in total. A third motor is fixedly installed on the inner wall of the separation chamber.
[0016] Furthermore, a receiving box is slidably installed on the inner wall of the reaction vessel, and the upper end of the receiving box is connected to the solid separation chamber.
[0017] The present invention has the following advantages:
[0018] 1. The present invention is equipped with a stirring mechanism inside the reaction vessel, which enables the cobalt-nickel sulfate solution to undergo more complete ion exchange with the solid ion exchanger;
[0019] 2. This invention features a separation chamber with a liquid separation chamber and a solid separation chamber on both sides of the inner wall. The solid residue generated after ion exchange, as well as the remaining residue of the solid ion exchanger, remains inside the filter frame. The cobalt sulfate solution can smoothly pass through the filter frame and be discharged through the third outlet pipe. The solid residue generated after ion exchange, as well as the remaining residue of the solid ion exchanger, can move into the solid separation chamber and be poured into the collection box. This solves the problem in existing ion exchange devices for purifying copper and nickel from cobalt sulfate solution where the remaining residue and the residue generated by ion exchange are not easily and quickly separated from the ion exchange solution after the reaction exchange, and the solid and liquid cannot be cleaned out after separation, leading to cumbersome operation. This new ion exchange device for purifying copper and nickel from cobalt sulfate solution can more quickly clean out the solid and liquid after separation, and the remaining residue and the residue generated by ion exchange are easily separated from the ion exchange solution, effectively improving the efficiency of purifying copper and nickel from cobalt sulfate solution. It is simple to operate, more economical, and more practical. Attached Figure Description
[0020] Figure 1 A perspective view of an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel, provided by the present invention.
[0021] Figure 2 This is a cross-sectional internal structural diagram of the separation chamber of an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel, provided by the present invention.
[0022] Figure 3 This is a cross-sectional view of the separation chamber of an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel, provided by the present invention.
[0023] Figure 4 A perspective view of the stirring mechanism inside the reaction vessel of an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel, provided by the present invention.
[0024] Figure 5 This is a perspective view of the mounting frame of an ion exchange device for purifying cobalt sulfate solution and removing copper and nickel, provided by the present invention.
[0025] Figure 6 A perspective view of the separation mechanism of an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel, provided by the present invention.
[0026] Figure 7 This invention provides a structural diagram of the receiving box installation of an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel.
[0027] Figure 8 This is a three-dimensional structural diagram of an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel, provided by the present invention, showing the filter frame moving to the top of the receiving box.
[0028] Figure 9 This invention provides an installation structure diagram of the filter frame of an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel.
[0029] Figure 10 A three-dimensional structural diagram of the rack and third gear transmission connection of an ion exchange device for purifying cobalt sulfate solution to remove copper and nickel provided by the present invention.
[0030] In the diagram: reaction vessel 100; first outlet pipe 110; first valve 111; feed hopper 120; second valve 121; first motor 210; stirring shaft 220; stirring plate 230; separation chamber 300; liquid separation chamber 301; solid separation chamber 302; slot 303; chute 304; filter frame 320; rotating shaft 321; mounting frame 330; second motor 331; drive gear 332; driven gear 333; rack 410; third gear 420; third motor 430; receiving box 500. Detailed Implementation
[0031] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0032] Example 1
[0033] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from a cobalt sulfate solution according to a first aspect embodiment of the present invention includes a reaction tank 100. A stirring mechanism is provided on the inner wall of the upper end of the reaction tank 100, and a separation mechanism is provided at the lower end of the reaction tank 100. The separation mechanism includes a separation chamber 300. A liquid separation chamber 301 is provided on one side of the inner wall of the separation chamber 300, and a solid separation chamber 302 is provided on the other side of the inner wall of the separation chamber 300.
[0034] In the above embodiments, it should be noted that the liquid separation chamber 301 is connected to the solid separation chamber 302, and a rubber pad is fixedly installed on the outer wall of the mounting frame 330 near the rack 410. The mounting frame 330 can enter the inner wall of the liquid separation chamber 301, and grooves are provided on both sides of the mounting frame 330. A protruding rod is provided on the inner wall of the separation chamber 300 and on both sides of the inner wall of the liquid separation chamber 301. The protruding rod is slidably connected to the groove.
[0035] The technical effects achieved by the above embodiments are as follows: the stirring mechanism can fully mix the cobalt sulfate solution with the ion exchanger, the separation mechanism can separate the solid and liquid solutions after the reaction, and the rubber pad on the outer wall of the mounting frame 330 can be inserted into the slot 303, so that the outer wall of the mounting frame 330 and the inner wall of the slot 303 are in contact.
[0036] Example 2
[0037] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from cobalt sulfate solution includes all the contents of Example 1. In addition, the stirring mechanism includes a first motor 210, and a stirring shaft 220 is fixedly connected to the lower end of the first motor 210. The output shaft of the first motor 210 is fixedly connected to the stirring shaft 220.
[0038] In the above embodiments, it should be noted that the output shaft of the first motor 210 is fixedly connected to the stirring shaft 220, and the stirring shaft 220 is rotatably connected to the reaction vessel 100.
[0039] The technical effect achieved by the above embodiments is that when the first motor 210 is working, it can drive the stirring shaft 220 to rotate.
[0040] Example 3
[0041] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from cobalt sulfate solution includes all the contents of Example 2. In addition, the outer wall of the stirring shaft 220 is provided with spiral stirring blades, and stirring plates 230 are fixedly installed on all four sides of the outer wall of the stirring shaft 220.
[0042] In the above embodiments, it should be noted that the inner wall of the stirring plate 230 is hollow, and the outer wall of the stirring plate 230 is in contact with the inner wall of the reaction vessel 100, so that the stirring plate 230 can scrape the inner wall of the reaction vessel 100.
[0043] The technical effect achieved by the above embodiment is that when the stirring shaft 220 rotates, the stirring plate 230, together with the spiral stirring blades, enables the solution and ion exchanger on the inner wall of the reaction vessel 100 to be fully mixed and reacted for exchange.
[0044] Example 4
[0045] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from cobalt sulfate solution includes all the contents of Example 3. In addition, a first liquid outlet pipe 110 is fixedly installed at the lower end of the reaction tank 100, and a first valve 111 is fixedly installed on the outer wall of the first liquid outlet pipe 110.
[0046] In the above embodiments, it should be noted that the reaction tank 100 is fixedly installed on the upper end of the separation chamber 300 in a conventional manner, the lower end of the first liquid outlet pipe 110 is fixedly connected to the separation chamber 300, and the first liquid outlet pipe 110 extends to the inner side of the liquid separation chamber 301. The first valve 111 can control the opening and closing of the first liquid outlet pipe 110.
[0047] The technical effect achieved by the above embodiments is that the residue and ion exchange solution generated by ion exchange inside the reaction tank 100 can be discharged into the inner wall of the separation chamber 300 through the first liquid outlet pipe 110.
[0048] Example 5
[0049] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from cobalt sulfate solution includes all the contents of Example 4. In addition, a feed hopper 120 is provided at the upper end of the reaction tank 100, and a second valve 121 is fixedly installed on the outer wall of the feed hopper 120.
[0050] In the above embodiments, it should be noted that feed hoppers 120 are fixedly installed on both sides of the upper end of the reaction vessel 100, and a second valve 121 is fixedly installed on the outer wall of the feed hopper 120.
[0051] The technical effect achieved by the above embodiment is that the cobalt-nickel sulfate mixed solution can be poured into the reaction tank 100 through the feed hopper 120, and the ion exchanger can be poured in through the feed hopper 120 on the other side, so that the copper and nickel ions in the cobalt-nickel sulfate mixed solution can be exchanged with the ions in the ion exchanger to obtain a high-quality cobalt sulfate solution.
[0052] Example 6
[0053] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from cobalt sulfate solution includes all the contents of Example 5. In addition, a slot 303 is provided on the inner wall of the separation chamber 300 and located between the liquid separation chamber 301 and the solid separation chamber 302, and sliding grooves 304 are provided on both sides of the inner wall of the separation chamber 300.
[0054] In the above embodiments, it should be noted that the liquid separation chamber 301 and the solid separation chamber 302 are connected by the slot 303. The inner wall of the liquid separation chamber 301 is inclined on all four sides, and a second liquid outlet pipe is fixedly installed at the lower end of the separation chamber 300. A third valve is fixedly installed on the outer wall of the second liquid outlet pipe. A notch is opened on the inner wall of the front side of the solid separation chamber 302. The notch connects to the solid separation chamber 302, and the receiving box 500 is slidably installed into the inner wall of the solid separation chamber 302 through the notch.
[0055] The technical effect achieved by the above embodiments is that high-quality cobalt sulfate solution can be discharged through the second outlet pipe.
[0056] Example 7
[0057] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from cobalt sulfate solution includes all the contents of Example 6. In addition, a filter frame 320 is provided inside the liquid separation chamber 301, and a rotating shaft 321 is fixedly installed on both sides of the filter frame 320. A mounting frame 330 is provided on the outer wall of the filter frame 320, and the rotating shaft 321 is rotatably installed on the inner wall of the mounting frame 330. A driving part is provided on one inner wall of the mounting frame 330.
[0058] In the above embodiments, it should be noted that a filter screen is provided on the inner wall of the filter frame 320, which can retain the fixed substance inside the filter frame 320, and the cobalt sulfate solution obtained by ion exchange can be discharged through the filter screen; the drive unit includes a second motor 331, a drive gear 332, and a driven gear 333. The second motor 331 is fixedly installed on the inner wall of one side of the mounting frame 330, and the output shaft of the second motor 331 is fixedly connected to the drive gear 332. A round rod is provided on the inner wall of the drive gear 332, and the drive gear 332 is fixedly installed on the outer wall of the round rod. The drive gear 332 is fixedly connected to the output shaft of the second motor 331 through the round rod; the drive gear 332 is driven by the driven gear 333, and the driven gear 333 is fixedly installed on the outer wall of the rotating shaft 321;
[0059] The technical effect achieved by the above embodiment is as follows: when the second motor 331 is working, the second motor 331 can drive the drive gear 332 to rotate, and the teeth on the outer wall of the drive gear 332 continuously mesh with the teeth on the outer wall of the driven gear 333, so that the driven gear 333 rotates, driving the rotating shaft 321 on the inner wall of the driven gear 333 to rotate, so that the filter frame 320 fixedly connected to the rotating shaft 321 can rotate and flip.
[0060] Example 8
[0061] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from cobalt sulfate solution includes all the contents of Example 7. In addition, a rack 410 is fixedly installed on the side of the mounting frame 330 near the solid separation chamber 302. There are two racks 410, and the racks 410 are slidably installed on the inner wall of the slide groove 304.
[0062] In the above embodiments, it should be noted that the rack 410 is connected to the solid separation chamber 302, and the rack 410 can penetrate and extend to the outside of the separation chamber 300.
[0063] The technical effect achieved by the above embodiments is that the outer wall of the rack 410 is slidably connected to the groove 304.
[0064] Example 9
[0065] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from cobalt sulfate solution includes all the contents of Example 8. In addition, a third gear 420 is provided on one side of the two racks 410, and there are eight third gears 420. A third motor 430 is fixedly installed on the inner wall of the separation chamber 300.
[0066] In the above embodiment, it should be noted that the number of third gears 420 is even. The two outermost third gears 420 are respectively connected to the racks 410 on both sides. The two adjacent third gears 420 are connected to each other, so that when any third gear 420 rotates, all the third gears 420 rotate at the same time. At the same time, the two outermost third gears 420 rotate in opposite directions, so that the racks 410 on both sides move to the left or right synchronously. The output shaft of the third motor 430 is fixedly connected to one of the third gears 420.
[0067] The technical effect achieved by the above embodiment is that when the third motor 430 is working, it can drive the third gear 420 fixedly connected to its output shaft to rotate, so that all the third motors 430 rotate at the same time, so that the rack 410 can move to the left or right, and push the mounting frame 330 to move to the left or right.
[0068] Example 10
[0069] like Figures 1 to 10 As shown, an ion exchange device for purifying and removing copper and nickel from cobalt sulfate solution includes all the contents of Example 9. In addition, a receiving box 500 is slidably installed on the inner wall of the reaction vessel 100, and the upper end of the receiving box 500 is connected to the solid separation chamber 302.
[0070] In the above embodiments, it should be noted that the mounting frame 330 can be moved to the upper side of the receiving box 500, and the filter frame 320 can be flipped by the driving part to pour the solid residue inside the filter frame 320 into the receiving box 500.
[0071] The technical effect achieved by the above embodiments is that the receiving box 500 can collect solid residue inside the filter frame 320.
[0072] Working principle: A cobalt-nickel sulfate mixed solution and an ion exchanger are poured into the reaction tank 100 through the feed hopper 120. The second valve 121 is closed, and the first motor 210 is started, driving the stirring shaft 220 to rotate, causing the stirring plate 230 to rotate. This allows the copper and nickel ions in the cobalt-nickel sulfate mixed solution to exchange with the ions in the ion exchanger. The first valve 111 is opened, and the resulting substance is discharged into the liquid separation chamber 301 through the first outlet pipe 110. The residue produced by the ion exchange remains inside the filter frame 320, and the ion exchange solution passes through the filter frame 320 and falls into the liquid separation chamber 301. The third valve is opened, and the cobalt sulfate solution can be discharged through the second outlet pipe. The third motor 430 is started, and the solution is discharged through the second outlet pipe. The three motors 430 drive one of the third gears 420 to rotate, causing all the third gears 420 to rotate. The outer third gear 420 continuously meshes with the rack 410, allowing the rack 410 to slide inside the slide groove 304. This causes the mounting frame 330 to leave the slot 303 and move into the solid separation chamber 302. When the mounting frame 330 is completely inside the solid separation chamber 302, the filter frame 320 is located on the upper side of the receiving box 500. The second motor 331 is then started, driving the drive gear 332 to rotate, which in turn drives the driven gear 333 to rotate, causing the rotating shaft 321 to rotate. This causes the filter frame 320 to flip, pouring the solid residue into the receiving box 500, thus completing the solid-liquid separation.
Claims
1. An ion exchange device for purifying a cobalt sulfate solution from copper and nickel, characterized by, The utility model provides a reaction tank (100) is provided with stirring mechanism in the upper end inner wall of reaction tank (100), first liquid outlet pipeline (110) is fixedly installed on the lower end of reaction tank (100), first valve (111) is fixedly installed on the outer wall of first liquid outlet pipeline (110), and the separation mechanism is provided on the lower end of reaction tank (100), and the separation mechanism includes separation bin (300), liquid separation chamber (301) is formed in the inner wall one side of separation bin (300), solid separation chamber (302) is formed in the inner wall other side of separation bin (300), clamping groove (303) is formed in the inner wall of separation bin (300) and is located between liquid separation chamber (301) and solid separation chamber (302), sliding slot (304) is formed in the inner wall both sides of separation bin (300), filter frame (320) is arranged in liquid separation chamber (301), and rotating shaft (321) is fixedly installed on the both sides of filter frame (320), and mounting frame (330) is arranged on the outer wall of filter frame (320), and the stirring mechanism includes first motor (210), and the lower end of first motor (210) is fixedly connected with stirring shaft (220), and spiral stirring blade is arranged on the outer wall of stirring shaft (220), and stirring plate (230) is fixedly installed on the four sides of the outer wall of stirring shaft (220).
2. The ion exchange device for removing copper and nickel from a cobalt sulfate solution according to claim 1, characterized in that, The upper end of the reaction tank (100) is provided with a feeding hopper (120), and the outer wall of the feeding hopper (120) is fixedly installed with a second valve (121).
3. The ion exchange device for removing copper and nickel from a cobalt sulfate solution according to claim 1, characterized in that, The rotating shaft (321) is rotatably installed in the inner wall of the mounting frame (330), and the mounting frame (330) is provided with a driving portion on the inner wall of one side.
4. The ion exchange apparatus for removing copper and nickel from a cobalt sulfate solution according to claim 3, wherein The mounting frame (330) is fixedly installed with a rack (410) on the side close to the solid separation chamber (302), the number of the rack (410) is two, and the rack (410) is slidably installed in the inner wall of the sliding slot (304).
5. The ion exchange apparatus for removing copper and nickel from a cobalt sulfate solution according to claim 4, wherein The opposite side of the two racks (410) is provided with a third gear (420), the number of the third gear (420) is eight, and the third motor (430) is fixedly installed on the inner wall of the separation bin (300).
6. The ion exchange device for removing copper and nickel from a cobalt sulfate solution according to claim 1, wherein The reaction tank (100) is slidably installed with a receiving box (500) on the inner wall, and the receiving box (500) is communicated with the solid separation chamber (302) on the upper end.