Synthetic kettle for producing high-solubility nickel carbonate

Abstract

The utility model relates to synthetic kettle technical field, and disclose a kind of synthetic kettle for high solubility nickel carbonate production, including kettle body, the kettle body top end is engaged with upper cover;Liquid inlet pipe unit, the liquid inlet pipe unit includes the first liquid inlet pipe and second liquid inlet pipe of fixedly penetrating kettle body outer wall top end;The kettle body cavity is provided with distribution assembly, distribution assembly includes first liquid distribution pipe, second liquid distribution pipe and fixed part. By setting first liquid outlet and corresponding second liquid outlet form "V" shape, can guide nickel sulfate solution, sodium carbonate solution directional orderly intersection, greatly increase the initial contact area of two kinds of reaction liquid, simultaneously drive motor drives stirring blade rotation, further promote reactant sufficient contact and system temperature uniform, can effectively avoid local over-concentration, over-alkali or instantaneous large amount of precipitate wrapping particle's phenomenon, significantly shorten reaction time, improve production efficiency, and guarantee the purity, yield and quality consistency of high solubility nickel carbonate product.

Description

Technical Field

[0001] This utility model relates to the field of synthesis reactor technology, and in particular to a synthesis reactor for producing highly soluble nickel carbonate. Background Technology

[0002] Highly soluble nickel carbonate is a key raw material in high-end fields such as lithium-ion battery cathode materials, precision electroplating, and catalyst preparation. Its purity, particle uniformity, and solubility directly determine the performance ceiling of downstream products. In the industrial production process of highly soluble nickel carbonate, the synthesis reactor is the core equipment for achieving efficient reaction between nickel sulfate solution and sodium carbonate solution. It needs to provide a closed, corrosion-resistant environment for the reaction, and precisely control the reaction temperature and pressure, while ensuring that the two reaction solutions are fully mixed to avoid local reaction abnormalities, thus providing the basic conditions for generating highly soluble, high-purity nickel carbonate intermediates.

[0003] Existing industrial reaction liquid synthesis reactors typically use dual independent feed pipes for feeding, which may cause a sudden increase in the concentration of the two solutions in local areas. This can lead to a large amount of nickel carbonate particles precipitating instantly and encapsulating unreacted nickel sulfate impurities, or even generating nickel hydroxide byproducts. This not only reduces the purity of the product but also significantly reduces its solubility. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a synthesis reactor for producing highly soluble nickel carbonate, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A synthesis reactor for producing highly soluble nickel carbonate includes: a reactor body with a top cover snapped onto its top; a support frame on the outer wall of the reactor body; and side lugs between the reactor body and the support frame; a liquid inlet unit including a first liquid inlet pipe and a second liquid inlet pipe fixedly penetrating the top of the outer wall of the reactor body; and a distribution assembly inside the reactor body cavity, including a first liquid distribution pipe, a second liquid distribution pipe, and a fixing part. Multiple sets of first liquid outlets are installed through the bottom of the outer wall of the first liquid distribution pipe, and multiple sets of second liquid outlets are installed through the bottom of the outer wall of the second liquid distribution pipe. The first liquid outlets and corresponding second liquid outlets form a "V" shape, and the two reaction liquids flow out through the first and second liquid outlets respectively and then come into contact.

[0006] According to the aforementioned synthesis reactor for producing highly soluble nickel carbonate, a drive motor and a coupling are fixedly installed on the top of the upper cover, and a main shaft and stirring blades are provided inside the reactor body cavity. The drive motor and coupling drive the main shaft and stirring blades to rotate.

[0007] According to the aforementioned synthesis reactor for producing highly soluble nickel carbonate, the cross-sections of the first and second liquid distribution pipes are both regular polygons, the first and second liquid distribution pipes are on the same horizontal plane, and the diameter of the second liquid distribution pipe is smaller than that of the first liquid distribution pipe.

[0008] According to the aforementioned synthesis reactor for producing highly soluble nickel carbonate, the fixing part includes a lower assembly block, an upper assembly block, and a vertical rod. Two sets of engaging grooves are provided through the lower assembly block and the upper assembly block on their adjacent sides. The lower assembly block and the upper assembly block cooperate to engage and limit one corner of the first liquid distribution pipe and the second liquid distribution pipe in the same position. There are multiple sets of fixing parts, and the multiple sets of fixing parts limit and fix the first liquid distribution pipe and the second liquid distribution pipe.

[0009] According to the aforementioned synthesis reactor for producing highly soluble nickel carbonate, a first screw is provided between the upper assembly block and the lower assembly block, and the lower assembly block is fixedly connected to the upper assembly block by the first screw.

[0010] According to the aforementioned synthesis reactor for producing highly soluble nickel carbonate, the top of the upper assembly block is also fixedly installed with a fixing pile, and the top of the upright is welded and fixed to the inner wall of the upper cover. The number of uprights corresponds one-to-one with the number of fixing piles.

[0011] According to the aforementioned synthesis reactor for producing highly soluble nickel carbonate, the top of the fixed pile is provided with a locking hole, the bottom end of the upright is movably locked in the corresponding locking hole, the bottom end of the outer wall of the upright is provided with a limiting hole, and a second screw is threadedly connected to one side of the fixed pile, the second screw being threadedly connected to the upright through the limiting hole.

[0012] This invention provides a synthesis reactor for producing highly soluble nickel carbonate. It has the following advantages: (1) By setting up a distribution assembly consisting of a first liquid distribution pipe, a second liquid distribution pipe, a first liquid outlet, and a second liquid outlet, and cooperating with a drive motor and a coupling to drive the main shaft and stirring blades, wherein the first liquid distribution pipe and the second liquid distribution pipe have regular polygonal cross sections and are coaxial but have different diameters, forming an annular liquid distribution area, the first liquid outlet and the corresponding second liquid outlet form a "V" shape, which can guide the nickel sulfate solution and sodium carbonate solution to converge in a directional and orderly manner, greatly increasing the initial contact area of ​​the two reaction liquids; at the same time, the drive motor drives the stirring blades to rotate, further promoting the full contact of the reactants and the uniform temperature of the system, which can effectively avoid the phenomenon of local over-concentration, over-alkali or instantaneous large-scale precipitation and encapsulation of particles, significantly shortening the reaction time, improving production efficiency, and ensuring the purity, yield and quality consistency of the highly soluble nickel carbonate product.

[0013] (2) By setting a fixing part consisting of a lower assembly block, an upper assembly block, and a vertical rod, the engaging grooves on the side of the lower assembly block and the upper assembly block that are close to each other can clamp the corners of the first liquid distribution pipe and the second liquid distribution pipe together. With the fastening effect of the first screw, the first liquid distribution pipe and the second liquid distribution pipe are radially fixed, ensuring the stability of the liquid distribution process. At the same time, the top of the vertical rod is welded to the inner wall of the upper cover, and the fixing pile at the top is engaged with the bottom of the vertical rod through the engaging hole. Then, the second screw passes through and is threaded to the limiting hole of the vertical rod. This not only ensures the stability of the distribution component in the operation of the equipment, but also allows the fixing part and the liquid distribution pipe to be easily separated by removing the second screw and the first screw. This balances the reliability of equipment operation and the convenience of later maintenance, and reduces the equipment maintenance cost. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a synthesis reactor for producing highly soluble nickel carbonate according to the present invention. Figure 2 This is a top view schematic diagram of the distribution components of a synthesis reactor for producing highly soluble nickel carbonate according to this utility model; Figure 3 This is a three-dimensional structural diagram of the distribution components of a synthesis reactor for producing highly soluble nickel carbonate according to this utility model; Figure 4 This is a three-dimensional structural diagram of the fixing part of a synthesis reactor for producing highly soluble nickel carbonate according to this utility model; Figure 5 This is a schematic diagram showing the connection between the uprights and the fixed piles of a synthesis reactor for producing highly soluble nickel carbonate according to this utility model.

[0015] Legend: 10. Support frame; 11. Vessel body; 12. Top cover; 13. Drive motor and coupling; 14. First inlet pipe; 15. Second inlet pipe; 16. First distribution pipe; 17. Second distribution pipe; 18. Fixing part; 19. First outlet; 20. Second outlet; 21. Lower assembly block; 22. Upper assembly block; 23. Engaging groove; 24. First screw; 25. Fixing post; 26. Engaging hole; 27. Upright rod; 28. Limiting hole; 29. ​​Second screw. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Please see Figure 1-5As shown, this utility model is a synthesis reactor for producing highly soluble nickel carbonate, including a reactor body 11. The reactor body 11 is the core container for the synthesis reaction, which must be able to withstand the pressure and temperature required for the reaction and resist the corrosion of the reaction medium. A top cover 12 is snapped onto the top of the reactor body 11, and a fastening bolt is provided between the top cover 12 and the reactor body 11 to ensure the sealing of the device. A support frame 10 is provided on the outer wall of the reactor body 11, and a side lug is provided between the reactor body 11 and the support frame 10. The support frame 10 provides stable support for the device. The liquid inlet pipe unit includes a first liquid inlet pipe 14 and a second liquid inlet pipe 15 that are fixedly inserted through the top of the outer wall of the reactor body 11. Through the first liquid inlet pipe 14 and the second liquid inlet pipe 15, nickel sulfate solution and sodium carbonate solution are added into the reactor body 11, respectively.

[0018] like Figure 1 As shown, a drive motor and coupling 13 are fixedly installed at the top of the upper cover 12. A main shaft and stirring blades are arranged inside the vessel body 11. The drive motor and coupling 13 drive the main shaft and stirring blades to rotate. The drive motor and coupling 13 provide the power required for stirring. The drive motor is connected to the main shaft through the coupling. The rotation of the main shaft drives the stirring blades to rotate. Efficient stirring is the core link to ensure sufficient contact of reactants, uniform temperature, and stable product quality. It can effectively shorten the reaction time and improve production efficiency.

[0019] like Figure 2-3 As shown, a distribution assembly is provided inside the vessel body 11. The distribution assembly includes a first liquid distribution pipe 16, a second liquid distribution pipe 17, and a fixing part 18. The cross-sections of the first liquid distribution pipe 16 and the second liquid distribution pipe 17 are both regular polygons. The first liquid distribution pipe 16 and the second liquid distribution pipe 17 are on the same horizontal plane. The diameter of the second liquid distribution pipe 17 is smaller than that of the first liquid distribution pipe 16. The first liquid distribution pipe 16 and the second liquid distribution pipe 17 are coaxial but have different diameters, forming an annular liquid distribution area. Multiple sets of first liquid outlets 19 are installed through the bottom of the outer wall of the first liquid distribution pipe 16. Multiple sets of second liquid outlets 20 are installed through the bottom of the outer wall of the second liquid distribution pipe 17. The first liquid outlets 19 and the corresponding second liquid outlets 20 form a "V" shape. The two reaction liquids flow out through the first liquid outlets 19 and the second liquid outlets 20 respectively and then come into contact. By setting the first outlet 19 and the corresponding second outlet 20 to form a "V" shape, the two reaction solutions are guided to converge in a directional and orderly manner after leaving the corresponding first outlet 19 and second outlet 20. This greatly increases the initial contact area of ​​the two solutions, promotes uniform mixing at the microscopic level, and effectively avoids the phenomenon of local over-concentration, over-alkaliness, or instantaneous large-scale precipitation and particle encapsulation, thereby improving product purity, yield, and consistency.

[0020] like Figure 4-5As shown, the fixing part 18 includes a lower assembly block 21, an upper assembly block 22, and a vertical rod 27. Two sets of engaging grooves 23 are provided on the side of the lower assembly block 21 and the upper assembly block 22 that are close to each other. The lower assembly block 21 and the upper assembly block 22 cooperate to engage and limit one corner of the first liquid distribution pipe 16 and the second liquid distribution pipe 17 in the same position. There are multiple sets of fixing parts 18, which limit and fix the first liquid distribution pipe 16 and the second liquid distribution pipe 17. A first screw 24 is provided between the upper assembly block 22 and the lower assembly block 21, and the lower assembly block 21 is fixedly connected to the upper assembly block 22 by the first screw 24. A fixing post 25 is also fixedly installed at the top of the upper assembly block 22. The top of the vertical rod 27 is welded and fixed to the inner wall of the upper cover 12, and the number of vertical rods 27 corresponds one-to-one with the number of fixing posts 25. The top of the fixed pile 25 has a locking hole 26, and the bottom of the upright 27 is movably locked into the corresponding locking hole 26. The bottom of the outer wall of the upright 27 has a limiting hole 28. A second screw 29 is threadedly connected to one side of the fixed pile 25, and the second screw 29 is threaded to the upright 27 through the limiting hole 28. By setting the fixing part 18, the locking grooves 23 of the lower assembly block 21 and the upper assembly block 22 together clamp the corners of the first liquid distribution pipe 16 and the second liquid distribution pipe 17, which plays a radial fixing role for the first liquid distribution pipe 16 and the second liquid distribution pipe 17. The top of the upright 27 is welded and fixed to the inner wall of the upper cover 12, and the top of the upper assembly block 22 is fixedly installed with the fixed pile 25. The bottom of the upright 27 is locked into the locking hole 26 at the top of the fixed pile 25. The upright 27 and the locking hole 26 are fixed by the second screw 29, which facilitates installation and disassembly and takes into account both operational stability and maintenance convenience.

[0021] The implementation principle of this utility model for a synthesis reactor used in the production of highly soluble nickel carbonate is as follows: First, the first liquid distribution pipe 16 and the second liquid distribution pipe 17 are installed and fixed using the fixing part 18. The engaging grooves 23 of the lower assembly block 21 and the upper assembly block 22 are aligned with the corners of the first liquid distribution pipe 16 and the second liquid distribution pipe 17 in the same position and engaged and limited. The lower assembly block 21 and the upper assembly block 22 are fastened with the first screw 24. Then, the bottom end of the upright 27 is movably engaged into the engaging hole 26 at the top of the fixing pile 25. The second screw 29 is screwed in so that it passes through the fixing pile 25 and is threadedly connected to the limiting hole 28 of the upright 27, ensuring that the distribution component is stably fixed to the inner wall of the upper cover 12. Then, the upper cover 12 is placed on the top of the vessel body 11 and locked with the fastening bolts. The sealing performance between the upper cover and the vessel body is checked. At the same time, the connection status of the drive motor and coupling 13 with the main shaft and stirring blades inside the vessel body is confirmed to ensure that the support frame 10 supports the vessel body 11 stably, thus completing the preliminary preparation of the equipment.

[0022] Next, the drive motor and coupling 13 are started. The motor drives the main shaft and stirring blades in the vessel 11 to rotate at high speed through the coupling. Nickel sulfate solution and sodium carbonate solution are respectively delivered to the first distribution pipe 16 and the second distribution pipe 17 through the first inlet pipe 14 and the second inlet pipe 15, respectively. The two reaction solutions flow along the cavities of the first distribution pipe 16 and the second distribution pipe 17, and finally flow out from the first outlet 19 and the second outlet 20, which are arranged in a "V" shape, significantly increasing the initial contact area. Under the continuous stirring action of the stirring blades, the two solutions are further mixed evenly and fully undergo a synthesis reaction in the temperature-resistant, pressure-resistant, and corrosion-resistant environment provided by the vessel 11 to generate highly soluble nickel carbonate. Stirring during the reaction ensures uniform system temperature and sufficient contact of reactants, avoiding local reaction abnormalities.

[0023] Finally, after the synthesis reaction reaches the preset requirements, stop the operation of the drive motor and coupling 13, close the inlet valves of the first liquid inlet pipe 14 and the second liquid inlet pipe 15, and discharge the nickel carbonate reaction product in the reactor body 11 from the preset outlet. If equipment maintenance or replacement of the liquid distribution pipe is required, loosen the fastening bolts between the upper cover 12 and the reactor body 11 to remove the upper cover, unscrew the second screw 29 to separate the upright 27 from the fixed pile 25, loosen the first screw 24 to disassemble the assembly block 21 and the upper assembly block 22, and then take out the first liquid distribution pipe 16 and the second liquid distribution pipe 17 for cleaning, inspection or replacement, in preparation for the next synthesis reaction.

[0024] The above embodiments are preferred implementations of this utility model. In addition, this utility model can be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A synthesis reactor for producing highly soluble nickel carbonate, characterized in that, include: The vessel body (11) has a top cover (12) that is snapped onto the top of the vessel body (11). A support frame (10) is provided on the outer wall of the vessel body (11). Side ears are provided between the vessel body (11) and the support frame (10). The liquid inlet pipe unit includes a first liquid inlet pipe (14) and a second liquid inlet pipe (15) that are fixedly inserted through the top of the outer wall of the vessel body (11). The vessel body (11) is provided with a distribution assembly, which includes a first liquid distribution pipe (16), a second liquid distribution pipe (17) and a fixing part (18). Multiple sets of first liquid outlets (19) are installed through the bottom of the outer wall of the first liquid distribution pipe (16), and multiple sets of second liquid outlets (20) are installed through the bottom of the outer wall of the second liquid distribution pipe (17). The first liquid outlets (19) and the corresponding second liquid outlets (20) form a "V" shape. The two reaction liquids come into contact after flowing out through the first liquid outlets (19) and the second liquid outlets (20) respectively.

2. The synthesis reactor for producing highly soluble nickel carbonate according to claim 1, characterized in that: The top of the cover (12) is fixedly equipped with a drive motor and a coupling (13). The vessel body (11) is equipped with a main shaft and stirring blades. The drive motor and coupling (13) drive the main shaft and stirring blades to rotate.

3. The synthesis reactor for producing highly soluble nickel carbonate according to claim 1, characterized in that: The cross-sections of the first liquid distribution pipe (16) and the second liquid distribution pipe (17) are both regular polygons. The first liquid distribution pipe (16) and the second liquid distribution pipe (17) are on the same horizontal plane. The diameter of the second liquid distribution pipe (17) is smaller than that of the first liquid distribution pipe (16).

4. The synthesis reactor for producing highly soluble nickel carbonate according to claim 1, characterized in that: The fixing part (18) includes a lower assembly block (21), an upper assembly block (22) and a vertical rod (27). Two sets of engaging grooves (23) are provided on the side of the lower assembly block (21) and the upper assembly block (22) that are close to each other. The lower assembly block (21) and the upper assembly block (22) cooperate to engage and limit one corner of the first liquid distribution pipe (16) and the second liquid distribution pipe (17) in the same position. The fixing part (18) consists of multiple sets, and the multiple sets of fixing parts (18) limit and fix the first liquid distribution pipe (16) and the second liquid distribution pipe (17).

5. The synthesis reactor for producing highly soluble nickel carbonate according to claim 4, characterized in that: A first screw (24) is provided between the upper assembly block (22) and the lower assembly block (21), and the lower assembly block (21) is fixedly connected to the upper assembly block (22) by the first screw (24).

6. The synthesis reactor for producing highly soluble nickel carbonate according to claim 4, characterized in that: The top of the upper assembly block (22) is also fixedly installed with a fixing pile (25), and the top of the upright (27) is welded and fixed to the inner wall of the upper cover (12). The number of uprights (27) corresponds one-to-one with the number of fixing piles (25).

7. The synthesis reactor for producing highly soluble nickel carbonate according to claim 6, characterized in that: The top of the fixed pile (25) is provided with a locking hole (26), and the bottom end of the upright (27) is movably locked in the corresponding locking hole (26). The bottom end of the outer wall of the upright (27) is provided with a limiting hole (28). A second screw (29) is threadedly connected to one side of the fixed pile (25), and the second screw (29) is threadedly connected to the upright (27) through the limiting hole (28).

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