High-nickel ternary positive electrode material raw material sagger charging assembly

Abstract

The utility model discloses a high-nickel ternary positive electrode material raw material sagger charging assembly which comprises a powder surge bin, a powder flow divider is arranged in the powder surge bin, and the bottom of the powder flow divider is connected with a powder flow guide groove; wherein the powder flow divider is of a rectangular pyramid structure, the periphery of the bottom of the powder flow divider is provided with a groove, one end of each groove is communicated with the interior of the powder flow divider, and the other end of each groove is connected with the powder flow guide groove. The powder flow divider in the assembly is of a rectangular pyramid structure, powder raw materials entering the powder buffering bin can naturally flow to the periphery of the flow divider under the action of gravity and enter the sagger from the four corners of the sagger through the four powder flow guide grooves, and the problems that in the high-nickel ternary raw material sagger filling process of traditional sagger filling equipment, impact force is large, and the sagger filling efficiency is high are solved. The flying dust is heavy, and the pungent smell is heavy.

Description

TECHNICAL FIELD

[0001] The utility model relates to high nickel ternary positive electrode material production equipment technical field, concretely is a kind of high nickel ternary positive electrode material raw meal loading bowl feeding assembly. BACKGROUND

[0002] In the production process of positive electrode material, loading bowl operation is an important link. High nickel ternary positive electrode material raw meal, with the increase of nickel content, precursor sphericity is better, and the fluidity of mixed powder is better. The existing patent CN221419974U and CN216954069U disclose that the powder feeding mechanism is directly fed using silo and feeding pipeline. In the loading process, a large amount of dust is often generated, which not only harms the health of operators, but also pollutes the environment, causing material waste and reducing product yield. At the same time, it also affects the quality of high nickel ternary positive electrode material. SUMMARY

[0003] The utility model aims at providing a kind of high nickel ternary positive electrode material raw meal loading bowl feeding assembly to solve the technical defects of large dust caused by vertical feeding of pipeline, poor environment in loading bowl process, large dust removal amount and low product yield in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of high nickel ternary positive electrode material raw meal loading bowl feeding assembly, comprising:

[0006] A powder buffer bin is provided with a powder flow divider inside, and the bottom of the powder flow divider is connected with a powder flow guide groove.

[0007] The powder flow divider is a four-pyramid structure, and a groove is arranged around the bottom of the powder flow divider. One end of each groove is in communication with the inside of the powder flow divider, and the other end is connected with the powder flow guide groove.

[0008] Further, the taper of the powder flow divider is 100°-120°.

[0009] Further, one end of the powder flow guide groove is located inside the powder buffer bin, and the other end extends to the outside of the powder buffer bin.

[0010] The powder flow guide groove is a horn-shaped structure, and the opening size of the connection end of the powder flow guide groove with the powder flow divider is larger than the opening size of the end of the powder flow guide groove located outside the powder buffer bin.

[0011] Further, the end of the powder flow guide groove extending to the outside of the powder buffer bin forms an acute angle with the bottom of the powder buffer bin.

[0012] Further, the included angle between each groove is equal.

[0013] Further, a second connecting flange is arranged between the powder distributor and the powder buffer bin.

[0014] Further, a screw outer cavity is arranged on the top of the powder buffer bin, and a conveying screw is arranged in the screw outer cavity.

[0015] Further, a pneumatic butterfly valve and a first connecting flange are arranged between the powder buffer bin and the screw outer cavity, and the pneumatic butterfly valve is arranged above the first connecting flange.

[0016] Further, a dust removal unit is further arranged, and the dust removal unit is arranged in connection with the external sealed cabin.

[0017] Further, the dust removal unit comprises a dust suction fan, a filter and a dust collection bin, the dust suction fan is connected with the filter, and the filter is connected with the dust collection bin.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1. The powder distributor in the assembly adopts a four-pyramid structure, so that the powder raw material entering the powder buffer bin can flow naturally to the four sides of the distributor under the action of gravity, and enter the saggar from the four corners of the saggar through the four powder flow guide grooves, thereby solving the problems of large impact force, large dust raising and large irritating odor existing in the direct feeding process of the traditional saggar loading equipment in the high-nickel ternary raw material saggar loading process.

[0020] 2. The design of the taper of 100°-120° makes the bottom of the powder distributor more sharp, which is helpful for the powder to flow more smoothly along the surface of the distributor under the action of gravity, can reduce the residence time of the powder in the distributor, and improve the flow efficiency of the powder.

[0021] 3. The powder flow guide groove in the horn-shaped structure can guide the powder to flow smoothly, and the larger opening end is connected with the powder distributor, so that the powder dispersed by the distributor can more easily enter the flow guide groove, and the accumulation and blockage of the powder at the inlet are avoided.

[0022] 4. The acute angle design makes the included angle between the outlet of the powder flow guide groove and the bottom of the powder buffer bin smaller, which is helpful for the powder to flow out of the bin more smoothly under the action of gravity.

[0023] 5. Since the included angle between each groove is equal, it is not necessary to adjust each groove individually, thereby reducing the adjustment time in the processing process.

[0024] 6. The second connecting flange can facilitate the disassembly of the powder distributor and the powder flow guide groove.

[0025] 7. The conveying screw rotates in the screw outer cavity, reducing the flying and scattering of the powder, and reducing the risk of dust pollution.

[0026] 8. The combination of the pneumatic butterfly valve and the first connecting flange forms a double sealing structure, effectively preventing the leakage of the powder during the conveying process, and improving the sealing performance of the system. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The high-nickel ternary positive electrode material raw meal bowl loading and feeding assembly structure schematic diagram is provided.

[0028] In the figure: 1, powder buffer bin; 2, powder flow divider; 3, powder flow guide groove; 4, screw outer cavity; 5, conveying screw; 6, pneumatic butterfly valve; 7, first connecting flange; 8, second connecting flange. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] In the production process of the positive electrode material, the bowl loading operation is an important link. The high-nickel ternary positive electrode material raw meal, because with the increase of the nickel content, the better the sphericity of the precursor, the better the flowability of the mixed powder, the existing patents CN221419974U and CN216954069U disclose the unloading mechanism, which uses the silo and directly feeds the material. In the loading process, a large amount of dust is often generated, which not only harms the health of the operators, but also pollutes the environment, causes material waste, and reduces the product yield; at the same time, it also affects the quality of the high-nickel ternary positive electrode material.

[0031] The inventor provides a high-nickel ternary positive electrode material raw meal bowl loading and feeding assembly to solve the above technical defects, which comprises a powder buffer bin, a powder flow divider, a powder flow guide groove, a screw outer cavity, a conveying screw, a pneumatic butterfly valve, a first connecting flange and a second connecting flange. Figure 1As shown, it comprises: a powder buffer bin 1, which is internally provided with a powder flow divider 2, and the bottom of the powder flow divider 2 is connected with a powder flow guide groove 3; wherein the powder flow divider 2 is a four-pyramid structure, and around the bottom of the powder flow divider 2, one groove is arranged respectively, one end of each groove is communicated with the inside of the powder flow divider 2, and the other end is connected with the powder flow guide groove 3. The powder flow divider 2 in the assembly adopts a four-pyramid structure, which can make the powder raw material entering the powder buffer bin flow naturally around the flow divider under the action of gravity, and enter the saggar from four corners of the saggar through the four powder flow guide grooves 3, thereby solving the problems of large impact force, large dust, and large irritating odor existing in the direct feeding process of the traditional saggar loading equipment in the high-nickel ternary raw material saggar loading process. Secondly, one end of each groove is communicated with the inside of the powder flow divider 2, and the other end is connected with the powder flow guide groove 3, which ensures that the powder can smoothly enter the powder flow guide groove 3 from the powder flow divider 2 and flow along the preset path, thereby improving the flow efficiency and feeding speed of the powder. And on the basis of the above structure, the powder raw material can enter the powder flow guide groove 3 from multiple directions at the same time, so that the powder can be uniformly distributed during the feeding process, and the amount and quality of the powder are kept consistent every time, thereby improving the consistency and repeatability of the saggar feeding, and improving the product quality. Figure 1As shown, the taper of the powder flow divider 2 is 100°-120°, making the top of the powder flow divider 2 more pointed, so that the powder flows more smoothly along the surface of the flow divider under the action of gravity, reducing the residence time of the powder in the powder flow divider 2 and improving the flow efficiency of the powder. One end of the powder flow guide groove 3 is located in the powder buffer bin 1, and the other end extends outside the powder buffer bin 1. The powder flow guide groove 3 is a horn-shaped structure, and the size of the opening at the end connected to the powder flow divider 2 is larger than the size of the opening at the end of the powder flow guide groove 3 located outside the powder buffer bin 1. The horn-shaped powder flow guide groove 3 can guide the smooth flow of the powder, and the larger opening end is connected to the powder flow divider 2, so that the dispersed powder of the powder flow divider 2 can more easily enter the powder flow guide groove 3, avoiding the accumulation and blockage of the powder at the entrance of the powder flow guide groove 3. As the opening of the powder flow guide groove 3 gradually decreases, the powder will be gradually compressed and dispersed during the flow process, thereby achieving more uniform distribution. In addition, the horn-shaped powder flow guide groove 3 can slow down the flow speed of the powder, reduce the splashing and dusting of the powder during the flow process, and can reduce the loss of the powder and reduce the pollution of the powder to the production environment. At the same time, the horn-shaped powder flow guide groove 3 can adapt to the flow characteristics of various powders. Different types of powders have different fluidity, and the horn-shaped structure can adjust the flow speed and distribution state of the powder according to the actual situation to meet the feeding requirements of different powders. Further, the end of the powder flow guide groove 3 extending outside the powder buffer bin 1 forms an acute angle with the bottom of the powder buffer bin 1. The acute angle design can slow down the flow rate of the powder, change the vertical falling of the existing equipment into the saggar to the oblique downward flow into the saggar, thereby reducing the amount of dust generated.

[0032] As Figure 1As shown, the included angle between each groove is equal, the powder in the powder distributor 2 will be evenly dispersed into each groove, to ensure that the powder in the subsequent flow and feeding process, keep uniform distribution, avoid local powder too much or too little. In this scheme, the powder distributor 2 and the powder buffer bin 1, between the second connecting flange 8, the second connecting flange 8 for the powder distributor 2 and the powder buffer bin 1 between the solid connection point, to ensure the connection between the stable and reliable, prevent loose or fall off due to vibration or other external factors in the process of use. Secondly, the second connecting flange 8 can ensure the connection between the powder distributor 2 and the powder buffer bin 1, is convenient to disassemble. In this scheme, the powder buffer bin 1 top is equipped with screw outer cavity 4, screw outer cavity 4, the installation of conveying screw 5, powder buffer bin 1 and screw outer cavity 4, still be equipped with pneumatic butterfly valve 6 and first connecting flange 7, pneumatic butterfly valve 6 is located above the first connecting flange 7. The rotation of conveying screw 5 in screw outer cavity 4 can continuously, stably transport the powder from the buffer bin 1 into, to ensure the continuity and stability of powder conveying, in this process, the conveying screw 5 helps to reduce the risk of blockage in the process of powder conveying; and the introduction of pneumatic butterfly valve 6, so that the flow of powder can be flexibly controlled, by adjusting the opening of pneumatic butterfly valve 6, can accurately adjust the output of powder, meet the different production needs.

[0033] Finally, the assembly also includes a dust removal unit, the dust removal unit is connected with the external sealed cabin, the dust removal unit includes dust suction fan, filter and dust collection bin, the dust suction fan is connected with the filter, the filter is connected with the dust collection bin, the dust is sucked into the filter through the dust suction fan, and then the dust is collected in the dust collection bin through the filter.

[0034] The dust removal unit can effectively capture and process the dust generated in the powder treatment process, prevent dust pollution of the working environment, protect the health and safety of employees, and at the same time, reduce the erosion of dust to the equipment, thereby prolonging the service life of the equipment.

[0035] As shown above, the powder distributor in the assembly adopts a four-pyramid structure, which can make the powder raw material entering the powder buffer bin flow naturally to the four corners of the distributor under the action of gravity, and enter the saggar from the four corners to the center direction through the four powder flow guide grooves, solving the problems of large impact force, large dust and strong irritating odor caused by the direct feeding of traditional saggar filling equipment for high nickel ternary raw material. Moreover, uniform powder distribution and flow guide can help to ensure that the amount and quality of powder are consistent every time, thereby improving the consistency and repeatability of saggar filling, and ensuring the quality of the final product.

[0036] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-nickel ternary cathode material raw material feeding assembly, characterized in that, include: A powder buffer chamber (1) is provided inside, and a powder distributor (2) is connected to the bottom of the powder distributor (2). The powder distributor (2) is a four-sided pyramid structure with a groove on each of its four sides. One end of each groove is connected to the inside of the powder distributor (2), and the other end is connected to the powder guide channel (3).

2. The high-nickel ternary cathode material raw material feeding assembly according to claim 1, characterized in that, The taper of the powder distributor (2) is 100° to 120°.

3. The high-nickel ternary cathode material raw material feeding assembly according to claim 1, characterized in that, One end of the powder guide channel (3) is located inside the powder buffer chamber (1), and the other end extends to the outside of the powder buffer chamber (1); Among them, the powder guide channel (3) has a trumpet-shaped structure, and the size of the opening at the end connected to the powder distributor (2) is larger than the size of the opening at the end of the powder guide channel (3) located outside the powder buffer chamber (1).

4. The high-nickel ternary cathode material raw material feeding assembly according to claim 3, characterized in that, The powder guide channel (3) extends to one end outside the powder buffer chamber (1), and the angle between it and the bottom of the powder buffer chamber (1) is an acute angle.

5. The high-nickel ternary cathode material raw material feeding assembly according to claim 1, characterized in that, The included angles between each of the grooves are equal.

6. The high-nickel ternary cathode material raw material feeding assembly according to claim 1, characterized in that, A second connecting flange (8) is provided between the powder distributor (2) and the powder buffer chamber (1).

7. The high-nickel ternary cathode material raw material feeding assembly according to claim 1, characterized in that, The powder buffer silo (1) is provided with a screw outer cavity (4) at the top, and a conveying screw (5) is installed inside the screw outer cavity (4).

8. The high-nickel ternary cathode material raw material feeding assembly according to claim 7, characterized in that, Between the powder buffer chamber (1) and the screw outer cavity (4), there is also a pneumatic butterfly valve (6) and a first connecting flange (7), with the pneumatic butterfly valve (6) located above the first connecting flange (7).

9. The high-nickel ternary cathode material raw material feeding assembly according to claim 1, characterized in that, It also includes a dust removal unit, which is connected to the external sealed chamber.

10. The high-nickel ternary cathode material raw material feeding assembly according to claim 9, characterized in that, The dust removal unit includes a vacuum fan, a filter, and a dust collection bin. The vacuum fan is connected to the filter, and the filter is connected to the dust collection bin.

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