High-carbon nickel production feed mechanism and reaction device thereof

Abstract

The utility model relates to high carbon nickel carbonate production technical field discloses a kind of high carbon nickel carbonate production feeding mechanism and its reaction device, including premixing component, premixing component is used to premix, premixing component includes jar body, first feed pipe, second feed pipe and ring, first feed pipe is fixedly connected with jar body top, and first feed pipe is installed on the tangent direction along inner edge wall of jar body, second feed pipe is fixedly connected with the wall surface of first feed pipe, different raw materials are respectively passed into in first feed pipe and second feed pipe, after different raw materials enter, in the channel area, form mixing flow after forming against the state of fast speed, carry out fast rotation mixing in the space in jar body, and under the setting of ring, tear liquid mass instantaneously by exerting ultrasonic wave energy to raw material, greatly reduce diffusion distance, to realize nanometer scale superfast, superuniform mixing, effectively separate nucleation and growth process, improve the saturation degree stability of product, and the difference between product batches is lower.

Description

Technical Field

[0001] This utility model belongs to the field of high nickel carbonate production technology, specifically, it relates to a high nickel carbonate production feeding mechanism and its reaction device. Background Technology

[0002] Nickel carbonate is a light green crystal, generally used in electroplating, ceramic coloring, and glazes. Currently, the nickel carbonate production process mostly involves feeding the material from pipes on both sides of the top of the reactor, so that sodium carbonate solution and nickel sulfate solution are synthesized into nickel carbonate solution in the inner cavity of the reactor.

[0003] A document with publication number (CN207463185U) discloses an atomizing feeding system for a nickel carbonate solution reactor. The system includes a reactor and a stirring paddle located within the reactor's inner cavity. It also includes a sodium carbonate feed pipe and a nickel sulfate feed pipe located outside the reactor. One end of each feed pipe extends through the top wall of the reactor into its inner cavity. The sodium carbonate feed pipe has at least one sodium carbonate nozzle connected to it and located within the reactor's inner cavity. Similarly, the nickel sulfate feed pipe has at least one nickel sulfate nozzle connected to it and located within the reactor's inner cavity. A ring plate recessed towards the center of the reactor's inner cavity is fixedly installed on the side wall of the reactor's inner cavity, directly below the sodium carbonate and nickel sulfate feed pipes. This system prevents nickel carbonate from clumping or clogging, thereby improving reaction efficiency and product yield.

[0004] In a traditional batch reactor, the above-mentioned device relies mainly on the shearing of the stirring paddle and overall circulation for dilution and mixing after the reaction liquid is added dropwise into the reactor. This process is relatively slow and is prone to forming areas of excessively high local concentration (i.e., excessively high "supersaturation") near the feeding point. This results in the formation of a large number of small and uneven crystal nuclei, leading to a wide product particle size distribution (wide PSD). It is difficult to grow regular spherical or specific morphological nickel carbonate. Excessively high local pH values ​​may cause impurities to be trapped inside the crystals, affecting product purity.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the technical problems related to nickel carbonate mixing, the basic concept of the technical solution adopted by this utility model is as follows: A feeding mechanism and reaction apparatus for producing high-nickel carbonate include a premixing component for premixing. The premixing component includes a tank, a first feed pipe, a second feed pipe, and rings. The first feed pipe is fixedly connected to the top of the tank and is installed on the tank along the tangential direction of the inner wall. The second feed pipe is fixedly connected to the wall of the first feed pipe and forms a 60° to 90° angle with the first feed pipe. The ring array is arranged inside the tank and is rotatably arranged.

[0007] In a preferred embodiment of this utility model, a protective cover is fixedly connected to the tank body, a drive motor is installed inside the protective cover, the drive motor is fixedly connected to the protective cover, and the output end of the drive motor is connected to a first gear through a coupling.

[0008] In a preferred embodiment of this utility model, the first gear meshes with the second gear, the second gear is fixedly connected to the cylindrical cover, the cylindrical cover is rotatably connected to the tank body, and the cylindrical cover is fixedly connected to the ultrasonic transducer.

[0009] In a preferred embodiment of this utility model, an ultrasonic generator is fixedly installed at the upper end of the ultrasonic transducer, and an ultrasonic transmission rod is fixedly installed at the bottom of the ultrasonic transducer, with the ultrasonic transmission rod being fixedly connected to a corresponding ring.

[0010] In a preferred embodiment of this utility model, heating coils are arranged in an array inside the tank, with the heating coils positioned between the rings. The heating coils are fixedly connected to the inner wall of the tank, and both the inner wall of the tank and the heating coils are coated with a PTEE coating.

[0011] In a preferred embodiment of the present invention, the bottom of the tank is provided with a discharge end, which is fixedly connected to the bottom of the tank, and an electrically controlled valve is installed inside the discharge end.

[0012] A reaction apparatus comprising all of the above-described nickel carbonate production feed mechanisms.

[0013] Compared with the prior art, the present invention has the following advantages: 1. A feeding mechanism and reaction device for producing high-nickel carbonate, wherein different raw materials are introduced into the first and second feeding pipes respectively. After entering, the different raw materials are mixed in a relatively fast-moving state in the channel area, and then rapidly rotated and mixed in the space inside the tank. With the ring setting, ultrasonic waves are applied to the raw materials to instantly tear liquid clumps, greatly reducing the diffusion distance, thereby achieving ultra-fast and ultra-uniform mixing at the nanoscale, effectively separating the nucleation and growth processes, improving the saturation stability of the product, and reducing the batch-to-batch variation of the product.

[0014] 2. The feeding mechanism and reaction device for producing high nickel carbonate, with the help of the PTE coating, isolates the internal components of the device, preventing raw material from scaling and adhering to the components, thus affecting the quality of subsequent production; and extends the service life of the device.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] In the attached diagram: Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the tank of this utility model; Figure 4 This is a schematic diagram of the upper structure of the ultrasonic generator of this utility model; Figure 5 This is a schematic diagram of the upper structure of the feed pipe of this utility model.

[0017] In the diagram: 1. Tank body; 11. Heating coil; 2. First feed pipe; 21. Second feed pipe; 3. Discharge end; 4. Protective cover; 5. Drive motor; 51. First gear; 52. Second gear; 6. Ultrasonic generator; 61. Ultrasonic transducer; 62. Ultrasonic transmission rod; 63. Ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0019] Please see Figure 1-5 A feeding mechanism for producing high-nickel carbonate includes a premixing component for premixing. The premixing component includes a tank body 1, a first feed pipe 2, a second feed pipe 21, and rings 63. The first feed pipe 2 is fixedly connected to the top of the tank body 1 and is installed on the tank body 1 along the tangential direction of the inner side wall. The second feed pipe 21 is fixedly connected to the wall of the first feed pipe 2 and forms a 60° to 90° angle with the first feed pipe 2. The rings 63 are arranged in an array inside the tank body 1 and are rotatably arranged. Different raw materials are introduced into the first feed pipe 2 and the second feed pipe 21 respectively. After entering, the different raw materials are mixed in a relatively fast-moving state in the channel area. They are then rapidly rotated and mixed in the space inside the tank 1. With the setting of the ring 63, ultrasonic waves are applied to the raw materials to instantly tear the liquid clumps, greatly reducing the diffusion distance. This achieves ultra-fast and ultra-uniform mixing at the nanoscale, effectively separating the nucleation and growth processes, improving the saturation stability of the product, and reducing the batch-to-batch variation.

[0020] The tank body 1 is fixedly connected to a protective cover 4. A drive motor 5 is installed inside the protective cover 4. The drive motor 5 is fixedly connected to the protective cover 4. The output end of the drive motor 5 is connected to a first gear 51 through a coupling. The first gear 51 meshes with a second gear 52. The second gear 52 is fixedly connected to a cylindrical cover. The cylindrical cover is rotatably connected to the tank body 1. An ultrasonic transducer 61 is fixedly connected to the cylindrical cover. An ultrasonic generator 6 is fixedly installed at the upper end of the ultrasonic transducer 61. An ultrasonic transmission rod 62 is fixedly installed at the bottom of the ultrasonic transducer 61. The ultrasonic transmission rod 62 is fixedly connected to a corresponding ring 63. When the pre-mixed raw materials enter the tank 1, the ultrasonic generator 6 starts to work, converts and transmits ultrasonic waves through the ultrasonic transducer 61, and transmits them to the space inside the tank 1 through the ultrasonic transmission rod 62. The ultrasonic waves are continuously transmitted and extended through the ring 63 to form a ring-shaped ultrasonic treatment area. The output end of the drive motor 5 drives the first gear 51 under the action of the coupling. The first gear 51 meshes with the second gear 52. The second gear 52 drives the cylinder. The cylinder drives the ultrasonic transducer 61 to rotate. The ultrasonic transducer 61 rotates and drives the ultrasonic transmission rod 62 and the ring 63 to stir and mix the raw materials in the tank 1. Furthermore, ultrasound can instantly tear apart liquid clumps, greatly reducing the diffusion distance and thus achieving ultra-fast and ultra-uniform mixing at the nanoscale. This effectively separates the nucleation and growth processes, improves product saturation stability, and reduces batch-to-batch variations. It eliminates areas of excessively high local concentrations at the source, and supersaturation is generated uniformly throughout the reaction system, which is conducive to simultaneous nucleation. This makes it an ideal method for preparing high-end nickel carbonate products with monodisperse, narrow particle size distribution, and good sphericity. The strong shock waves and microjets can effectively scour the reactor walls and transducer surfaces, greatly alleviating or even preventing the adhesion and scaling of nickel carbonate crystals on the equipment and extending continuous operation time. The energy provided by the cavitation effect can accelerate the chemical reaction itself, potentially reducing the activation energy required for the reaction, thereby improving production efficiency. By adjusting parameters such as the power and frequency of ultrasound, the intensity of the cavitation effect can be precisely controlled, thus adapting to process requirements under different concentrations and flow rates.

[0021] The tank body 1 is provided with an array of heating coils 11, which are arranged between the rings 63. The heating coils 11 are fixedly connected to the inner wall of the tank body 1, and the inner wall of the tank body 1 and the heating coils 11 are coated with PTEE coating. The space inside the tank 1 is preheated by heating coil 11 to avoid the space inside the tank 1 being extremely low in heat before the ultrasonic action, which would affect the production of raw materials. The efficiency of raw material production is quickly improved by preheating. The PTE coating isolates the internal components of the device, preventing raw materials from scaling and adhering to these components, which could affect the quality of subsequent production. This extends the service life of the device.

[0022] The tank body 1 has a discharge end 3 at the bottom, which is fixedly connected to the bottom of the tank body 1, and an electrically controlled valve is installed inside the discharge end 3. The discharge end 3 is used to control the discharge of the premixed raw materials inside, and to control the supply of raw materials under the flow control of the electrically controlled valve; It is worth noting that the electrically controlled valve includes a valve body, a valve needle, a retaining ring, an armature, an electromagnetic coil, a closing spring, and a pre-stroke spring. The valve body has a fluid inlet and a metering orifice at both ends. A valve needle is slidably positioned between the fluid inlet and the metering orifice within the valve body. A valve head is positioned at the tail end of the valve needle to close the metering orifice. A rod is positioned at the top of the valve needle, passing through the center of the armature and slidingly engaging with it. The retaining ring is fixedly connected to the top of the rod. A closing spring is positioned on the retaining ring to drive it downwards. The pre-stroke spring engages with the armature to press down the armature. The retaining ring is made of a non-magnetic material. An electromagnetic coil is positioned inside the valve body to drive the armature and retaining ring. When the electromagnetic coil is de-energized, the closing spring pushes the retaining ring and valve needle downwards, while the pre-stroke spring simultaneously pushes the armature and valve needle downwards, causing the valve head to close the metering orifice. This electrically controlled valve has already been disclosed in the prior art CN114198509A, "An Electrically Controlled Valve for Rapid On / Off," and will not be elaborated upon here.

[0023] A reaction apparatus comprising all of the above-mentioned high nickel carbonate production feeding mechanisms, wherein the bottom of the discharge end 3 is connected to the reaction apparatus; Since the reaction apparatus is an existing and mature technology, it is not disclosed in detail in this paper, and it is not an improvement of this optimization scheme, so it will not be described in detail here.

[0024] Working principle: Different raw materials are introduced into the first feed pipe 2 and the second feed pipe 21 respectively. After entering, the different raw materials are rapidly mixed in the channel area, forming a jet-like state. Then, they are rapidly rotated and mixed in the space inside the tank 1. With the setting of the ring 63, the ultrasonic waves applied to the raw materials can instantly tear apart liquid clumps, greatly reducing the diffusion distance, thereby achieving ultra-fast and ultra-uniform mixing at the nanoscale. This effectively separates the nucleation and growth processes, improves the saturation stability of the product, and reduces batch-to-batch differences. When the pre-mixed raw materials enter the tank 1, the ultrasonic generator 6 starts working, converting ultrasonic waves... The device 61 converts and transmits ultrasonic waves, which are then transmitted to the space inside the tank 1 via the ultrasonic transmission rod 62. The ultrasonic waves continue to extend and transmit through the ring 63, forming a ring-shaped ultrasonic processing area. The output of the drive motor 5, under the action of the coupling, drives the first gear 51, which meshes with the second gear 52. The second gear 52 drives the cylinder, which in turn drives the ultrasonic transducer 61 to rotate. The rotation of the ultrasonic transducer 61 drives the ultrasonic transmission rod 62 and the ring 63, stirring and mixing the raw materials inside the tank 1. Furthermore, the ultrasonic waves can instantly tear apart liquid clumps, greatly reducing the diffusion distance, thereby achieving nanoscale... The ultra-fast and ultra-uniform mixing effectively separates the nucleation and growth processes, improving product saturation stability and minimizing batch-to-batch variations. It eliminates areas of excessively high local concentrations, ensuring uniform supersaturation throughout the reaction system, which is beneficial for simultaneous nucleation. This makes it an ideal method for preparing high-end nickel carbonate products with monodisperse particle size distribution and good sphericity. Strong shock waves and microjets effectively scour reactor walls and transducer surfaces, significantly mitigating or even preventing nickel carbonate crystal adhesion and scaling on equipment, extending continuous operating time. The energy provided by cavitation can accelerate the chemical reaction itself, potentially reducing the required activity level for the reaction. The device utilizes cavitation energy to improve production efficiency. By adjusting parameters such as the power and frequency of the ultrasonic waves, the intensity of the cavitation effect can be precisely controlled to adapt to process requirements under different concentrations and flow rates. The heating coil 11 preheats the space inside the tank 1, preventing the space from being extremely cold before the ultrasonic waves act, which could affect the production of raw materials. Preheating rapidly improves the efficiency of raw material production. The PTE coating isolates the internal components of the device, preventing raw material scaling from adhering to the components and affecting the quality of subsequent production. This extends the service life of the device.

[0025] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A feeding mechanism for high-nickel carbonate production, characterized in that, include: The premixing component is used for premixing. The premixing component includes a tank (1), a first feed pipe (2), a second feed pipe (21), and an annulus (63). The first feed pipe (2) is fixedly connected to the top of the tank (1) and is installed on the tank (1) along the tangential direction of the inner side wall. The second feed pipe (21) is fixedly connected to the wall of the first feed pipe (2) and the second feed pipe (21) and the first feed pipe (2) are at a 60° to 90° angle to each other. The annulus (63) is arranged in an array inside the tank (1) and is rotatably arranged.

2. The high-nickel carbonate production feeding mechanism according to claim 1, characterized in that, A protective cover (4) is fixedly connected to the tank (1). A drive motor (5) is installed inside the protective cover (4). The drive motor (5) is fixedly connected to the protective cover (4). The output end of the drive motor (5) is connected to a first gear (51) through a coupling.

3. The high-nickel carbonate production feeding mechanism according to claim 2, characterized in that, The first gear (51) meshes with the second gear (52), the second gear (52) is fixedly connected to the cylindrical cover, the cylindrical cover is rotatably connected to the tank body (1), and the cylindrical cover is fixedly connected to the ultrasonic transducer (61).

4. The high-nickel carbonate production feeding mechanism according to claim 3, characterized in that, An ultrasonic generator (6) is fixedly installed at the upper end of the ultrasonic transducer (61), and an ultrasonic transmission rod (62) is fixedly installed at the bottom of the ultrasonic transducer (61). The ultrasonic transmission rod (62) is fixedly connected to the corresponding ring (63).

5. The high-nickel carbonate production feeding mechanism according to claim 1, characterized in that, Heating coils (11) are arranged in an array inside the tank (1). The heating coils (11) are arranged between the rings (63). The heating coils (11) are fixedly connected to the inner wall of the tank (1). The inner wall of the tank (1) and the heating coils (11) are coated with ptee coating.

6. The high-nickel carbonate production feeding mechanism according to claim 1, characterized in that, The bottom of the tank (1) is provided with a discharge end (3), which is fixedly connected to the bottom of the tank (1), and an electric control valve is installed inside the discharge end (3).

7. A reaction apparatus, characterized in that, The high-carbonate nickel production feed mechanism includes any one of claims 1-6.

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