Particle size grading device and metal oxide synthesis system
The particle size classification device using a multi-stage U-tube and feed pump system solves the problem of poor particle size control in existing technologies, and achieves precise control and efficient production of metal oxide particles.
Patent Information
- Application Number
- CN202422577521.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-24
AI Technical Summary
Existing technologies are unable to precisely control the particle size during the synthesis of metal oxides, and lack equipment and systems that can precisely control particle size.
A particle size classification device is designed. It uses a multi-stage U-tube and feed pump system to classify particles based on the difference in settling velocity in the U-tube. Combined with a metal oxide synthesis system, it achieves precise control of particle size.
It achieves precise control over the particle size of metal oxides, simplifies operation, is suitable for large-scale industrial production, and improves the tap density and performance of the product.
Smart Images
Figure CN223439793U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to metal oxide material preparation technical field especially relates to a granule particle size grading device and metal oxide synthesis system. BACKGROUND
[0002] With the rapid development of new energy, the continuous derivation of battery types, the positive material puts forward more and more big request to the morphology and particle size of solid particles, because the high and low of tap density determines the size of battery discharge capacity in unit volume. At present, in industry, mainly through the regulation and control solution Ph value, material concentration, stirring intensity, complexing agent type and ultrasonic synthesis etc. Way to control the particle size of metal oxide synthesis, but at present these methods cannot accurately control the particle size range in the synthesis process, also lack a kind of metal oxide synthesis equipment and system that can accurately control the particle size of granule. UTILITY MODEL CONTENT
[0003] The utility model provides a kind of granule particle size grading device and the synthesis system of metal oxide that can accurately control particle size of granule particle size that can accurately obtain target particle size granule, to solve the technical problem of poor particle size control effect in the preparation process of existing metal oxide mentioned in background art.
[0004] To solve the above technical problems, the technical scheme provided by the utility model is as follows:
[0005] A kind of granule particle size grading device, including feed pump, feed pipe and multistage U-shaped tube, the multistage U-shaped tube is obtained by connecting the head of several U-shaped tubes, each U-shaped tube bottom is provided with the liquid discharge port that is opened and closed by valve control, the feed pipe is connected with the feed port of first U-shaped tube, and material is transported to the multistage U-shaped tube by feed pump and feed pipe.
[0006] The design idea of the above technical scheme is that material is sent to multistage U-shaped tube by feed pump and feed pipe, the difference in settling velocity of particles of different particle sizes is utilized by controlling the delivery rate of feed pump and the height of U-shaped tube, so that particles of different particle sizes are distributed in U-shaped tube solutions of different stages, effective classification of particle size is realized, and target particle size product can be obtained by simple operation.
[0007] As a further preferred embodiment of the above technical solution, the number of U-shaped tubes is 2-10.
[0008] As a further preferred embodiment of the above technical solution, the vertical height of the multistage U-shaped tube is 5-15 cm.
[0009] As a further preferred embodiment of the above technical solution, the feed pump is a peristaltic pump, and the feed pipe is a stainless steel pipe.
[0010] Based on the same technical concept, the utility model also provides a metal oxide synthesis system, including raw material conveying device, reaction synthesis device, particle size grading device and ripening device which are connected in proper order according to material conveying direction, the particle size grading device is the particle size grading device of above-mentioned technical scheme.
[0011] The design idea of the above technical solution is that the raw material conveying device adds the raw material of the metal oxide into the reaction synthesis device according to the proportion, then the particle size grading device screens the product obtained by the reaction, obtains the product solution of the target particle size and sends it to the ripening device to ripen, thereby obtaining the final product of the target particle size, the particle size of the metal oxide obtained by synthesis can be accurately controlled, the operation method is simple, the modification project of the existing production line is small, and the production is suitable for large-scale industrialization.
[0012] As a further preferred embodiment of the above technical solution, one end of the feeding pipe of the particle size grading device is arranged at the bottom of the reaction synthesis device. The setting position of the feeding pipe is conducive to conveying as many product particles generated and settled at the bottom of the reaction synthesis device as possible to the particle size grading device for particle selection, so as to ensure the yield of the final product.
[0013] As a further preferred embodiment of the above technical solution, the raw material conveying device includes a plurality of raw material barrels, a material conveying pipe and a material conveying pump, the material conveying pump sends the materials in the plurality of raw material barrels into the reaction synthesis device through the material conveying pipe according to the set proportion. Through the cooperation of the raw material conveying device, the material conveying pump, the feeding pump and the valve, continuous production can be realized for 24 hours without interruption, the production efficiency is ensured, and the labor cost is saved.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] The particle size grading device of the utility model can effectively grade and separate the particle size in the solution, thereby obtaining the particles of the target particle size simply; the metal oxide synthesis system of the utility model can accurately control the particle size of the metal oxide obtained by synthesis, the operation method is simple, the modification project of the existing production line is small, and the production is suitable for large-scale industrialization, the problems that the wastewater discharge amount is large, the particle size and the impurity content are uncontrollable in the existing process and device are solved, and the metal oxide prepared has high tap density and can be used for manufacturing high-performance batteries.
[0016] The utility model will be further described in detail with reference to the drawings. DRAWINGS
[0017] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings and their descriptions are used to explain the present application and are not intended to limit the present application. In the drawings:
[0018] Figure 1 FIG. 1 is a structural schematic diagram of a particle size grading device of the present application;
[0019] Figure 2 FIG. 2 is a structural schematic diagram of a metal oxide synthesis system of the present application;
[0020] Figure 3 FIG. 3 is a SEM image of metal oxide particles of an intermediate solution obtained in the present application;
[0021] Figure 4 FIG. 4 is a SEM image of metal oxide particles of an intermediate solution obtained in the present application;
[0022] Figure 5 FIG. 5 is a particle size distribution result of an intermediate solution obtained in step (1) of the present application;
[0023] Figure 6 FIG. 6 is a particle size distribution result of metal oxide particles in a solution in the first U-shaped tube of the multi-stage U-shaped tube of step (2) of the present application;
[0024] Figure 7 FIG. 7 is a particle size distribution result of metal oxide particles in a solution in the second U-shaped tube of the multi-stage U-shaped tube of step (2) of the present application.
[0025] Legend:
[0026] 1, multi-stage U-shaped tube; 11, feed inlet; 12, discharge outlet; 2, feed pump; 3, feed pipe; 4, U-shaped tube; 5, liquid discharge port; 6, valve; 7, metal sulfate solution barrel; 8, ammonia water barrel; 9, lye barrel; 10, reaction synthesis kettle; 11, aging kettle. DETAILED DESCRIPTION
[0027] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, the present application can be implemented in various different ways as limited and covered by the claims.
[0028] Embodiment 1:
[0029] As Figure 1As shown in the figure, the particle size grading device of the embodiment comprises a multi-stage U-shaped tube 1 formed by connecting three U-shaped tubes 4 end to end (other stages can also be selected according to actual needs), the height of the multi-stage U-shaped tube 1 is 8.3 cm, a liquid discharge port 5 and a corresponding valve 6 are arranged at the bottom of each stage of the U-shaped tube 4, the feed inlet of the first stage of the U-shaped tube is connected with the feed pipe 3 as the feed inlet 11 of the multi-stage U-shaped tube, the feed pump 2 is used to control the material to enter the multi-stage U-shaped tube 1 from the feed pipe 3, and the feed outlet of the last stage of the U-shaped tube is used as the feed outlet 12 of the multi-stage U-shaped tube; the feed pipe 3 can be a combination of a corrosion-resistant hose and a stainless steel pipe, and the feed pump 2 is a peristaltic pump.
[0030] As Figure 2 shown in the figure, the metal oxide synthesis system of the embodiment comprises a raw material conveying device, a reaction synthesis kettle 10, the particle size grading device of the embodiment, and an aging kettle 11 which are sequentially arranged and connected, wherein the raw material conveying device comprises a metal sulfate solution barrel 7, an ammonia water barrel 8, and a lye barrel 9, each raw material barrel is correspondingly provided with a peristaltic pump and a feed pipe, so as to convey the corresponding raw materials to the reaction synthesis kettle 10 according to the set proportion for reaction, one end of the feed pipe 3 of the particle size grading device is arranged at the bottom of the reaction synthesis kettle 10, the corresponding liquid discharge port 5 of the first stage of the U-shaped tube of the particle size grading device is connected with the feed inlet of the aging kettle 11 in communication, and the corresponding liquid discharge ports 5 of the other stages of the U-shaped tube of the particle size grading device are connected with the feed inlet of the reaction synthesis kettle 10 in communication (in order to avoid occlusion in the figure, the connecting pipeline is indicated by a dashed line).
[0031] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiment. For those skilled in the art, the improvements and changes obtained without departing from the technical concept of the present application shall be regarded as the protection scope of the present application.
Claims
1. A particle size classification device, characterized in that: The invention comprises a feed pump (2), a feed pipe (3) and a multi-stage U-shaped tube (1). The multi-stage U-shaped tube (1) is obtained by connecting a plurality of stages of U-shaped tubes (4) end to end. A discharge port (5) whose opening and closing is controlled by a valve (6) is provided at the bottom of each stage of the U-shaped tube (4). The feed pipe (3) is connected to the feed port of the first stage of the U-shaped tube, and the material is transported to the multi-stage U-shaped tube (1) through the feed pump (2) and the feed pipe (3).
2. The particle size classification device according to claim 1, characterized in that: The number of stages of the U-shaped tube (4) is 2 to 10.
3. The particle size classification device according to claim 1, characterized in that: The vertical height of the multi-stage U-shaped tube (1) is 5 to 15 cm.
4. The particle size classification device according to claim 1, characterized in that: The feed pump (2) is a peristaltic pump; the feed pipe (3) is a stainless steel pipe.
5. A metal oxide synthesis system, characterized in that: It comprises a raw material conveying device, a reaction synthesis device, a particle size classification device and an aging device which are sequentially connected in the material conveying direction; the particle size classification device is the particle size classification device according to any one of claims 1-4.
6. The metal oxide synthesis system according to claim 5, characterized in that: One end of the feed pipe (3) of the particle size classification device is arranged at the bottom of the reaction synthesis device.
7. The metal oxide synthesis system according to claim 5, characterized in that: The raw material conveying device includes a plurality of raw material barrels, a conveying pipe and a conveying pump. The conveying pump conveys the materials in the plurality of raw material barrels to the reaction synthesis device through the conveying pipe according to a set ratio.