Reaction kettle for accelerating reaction process
By setting up serrated blades and nitrogen protection pipelines in the reactor, combined with the design of the deflector, the problems of bubbles and solid crystalline dirt in the reactor are solved, and the reaction efficiency is improved and the service life is extended.
Patent Information
- Application Number
- CN202422092292.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The existing reactors generate a large number of bubbles during the reaction process, resulting in a decrease in reaction efficiency. Solid crystalline dirt is easily accumulated at the bottom of the reactor, which affects the service life. At the same time, materials are deposited in the deflector area to form large particles of dirt, which is difficult to clean.
The serrated dispersing blade and nitrogen protection pipeline are set up in the reactor. In conjunction with the design of the deflector, the dispersing blade is located at 1/2 of the liquid level of the stirring vortex, and the auxiliary stirring blade is located at 1/3 of the height of the spindle. There are rectangular holes on the surface of the deflector. The nitrogen protection pipeline is used to quickly discharge foam gas and enhance liquid fluidity.
Effectively break down the foam in the reaction kettle, improve reaction efficiency, reduce accumulation of dead materials, extend the service life of the reaction kettle, and improve the reaction process.
Smart Images
Figure CN223055640U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reaction kettles, and particularly relates to a reaction kettle for accelerating the reaction process. Background Art
[0002] Nickel-cobalt-manganese ternary materials are widely used in lithium-ion batteries. At present, the production method of nickel-cobalt-manganese ternary precursors mainly involves simultaneously adding metal salts, liquid alkali, and ammonia water into a reaction kettle for preparation.
[0003] When the existing nickel-cobalt-manganese ternary precursor production equipment is in use, since a large amount of gas is generated during the reaction, the surface of the reaction liquid will be covered by foam, resulting in an impact on the progress of the reaction; at the same time, the internal bubbles in the reaction liquid prevent the reactants from fully contacting, affecting the reaction rate; moreover, after long-term use, a large amount of solid crystal dirt is likely to accumulate at the bottom of the reaction kettle, causing difficulties in cleaning and affecting the service life; in addition, there are often problems such as the deposition of materials in the dead corner area of the baffle, resulting in crystal fouling and some excessively large particle sizes of the materials.
[0004] Currently, many pumps in the form of pulses are used to add solutions during the reaction feeding process of the reaction kettle. Adding solutions in the form of pulses will inevitably generate bubbles, and a large amount of gas will also be generated during the ternary reaction process. These gases will form a large amount of foam. These foams will hinder the reaction during the reaction process, thereby reducing the reaction efficiency. And the presence of the baffle will cause the accumulation of the feed liquid, forming large-particle dirt that is difficult to clean.
[0005] Therefore, how to provide a reaction kettle for accelerating the reaction process to solve the problems existing in the prior art is of great significance for its application. Content of the Utility Model
[0006] In view of this, the purpose of this application is to provide a reaction kettle for accelerating the reaction process to solve the problem that the existing reaction kettle generates bubbles during the reaction process, thereby affecting the reaction efficiency.
[0007] To achieve the above purpose, the utility model provides the following technical solutions:
[0008] A reaction kettle for accelerating the reaction process includes a reaction kettle body. A kettle cover is installed at the top end of the reaction kettle body. A main shaft is rotatably connected inside the reaction kettle body. A dispersing paddle is installed at the top end of the main shaft. An auxiliary stirring paddle is installed in the middle of the main shaft. A main stirring paddle is installed at the bottom end of the main shaft. A nitrogen protection pipeline is installed at the top end of the kettle cover.
[0009] Preferably, the shape of the dispersing paddle is serrated. The dispersing paddle, the auxiliary stirring paddle, and the main stirring paddle are all four-paddle blades, and the dispersing paddle, the auxiliary stirring paddle, and the main stirring paddle are all distributed at intervals of 90 degrees.
[0010] Preferably, the auxiliary stirring blade is located at one-third of the height of the main shaft. The distance between the auxiliary stirring blade and the main stirring blade is A, and the distance between the dispersing blade and the auxiliary stirring blade is 1.3 - 1.5A.
[0011] Preferably, four flow guiding plates are installed on the inner wall of the reactor body. The flow guiding plates are arc-shaped, and flow guiding holes are formed on the surfaces of the flow guiding plates.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. In the stirring system of the reactor of the present utility model, a special dispersing blade for dispersing the foam generated by stirring is added. The installation position of the dispersing blade is at half of the height of the calculated stirring vortex liquid level. After calculation, the distance from this position above the uppermost dispersing blade to the uppermost blade is 1.3 - 1.5 blade pitches. The auxiliary stirring blade is at one-third of the height of the main shaft. Therefore, the installation position of the dispersing blade is also at the corresponding position. By this method, the foam generated in the reactor is dispersed and the gas generated by the crushing of the foam is quickly discharged in cooperation with the nitrogen protection pipeline provided in the reactor. The nitrogen protection pipeline is located at the kettle cover and uses negative pressure collection or air pump extraction to continuously circulate the gas inside the reactor.
[0014] 2. The flow guiding plates provided in the reactor are set to be arc-shaped, which can better guide the flow of the liquid in the reactor, thereby accelerating the reaction progress. And in order to reduce the possibility of dead material generation due to the increased area of the flow guiding plates, a rectangular hole is opened on the surface of the flow guiding plates, and the liquid material will flow through the hole over the flow guiding plates, which will greatly reduce the possibility of dead material generation.
[0015] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, so as to be implemented in accordance with the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following describes the preferred embodiments of the present application in detail in conjunction with the accompanying drawings.
[0016] According to the following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings, those skilled in the art will understand the above and other purposes, advantages and features of the present application more clearly. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale.
[0018] Figure 1 It is a structural schematic diagram of the present utility model;
[0019] Figure 2 It is a structural schematic diagram of the baffle plate in the present utility model.
[0020] In the figure: 1, the reactor body; 2, the baffle plate; 3, the main stirring paddle; 4, the auxiliary stirring paddle; 5, the main shaft; 6, the nitrogen protection pipeline; 7, the kettle cover; 8, the diversion hole; 9, the dispersing paddle. Specific embodiments
[0021] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. In the following description, providing specific details such as specific configurations and components is only to help a comprehensive understanding of the embodiments of the present application. Therefore, those skilled in the art should clearly understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for the sake of clarity and conciseness, the description of known functions and structures is omitted in the embodiments.
[0022] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0023] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article is a description of another association object relationship, indicating that there can be two relationships. For example, A / and B can represent: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally represents that the front and rear associated objects are an "or" relationship.
[0024] It should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion.
[0025] Please refer to Figure 1-2 , the present invention provides a technical solution for a reactor to accelerate the reaction process: including a reactor body 1, a kettle cover 7 is installed at the top of the reactor body 1, a main shaft 5 is rotatably connected inside the reactor body 1, a dispersing blade 9 is installed at the top of the main shaft 5, an auxiliary stirring blade 4 is installed in the middle of the main shaft 5, a main stirring blade 3 is installed at the bottom of the main shaft 5, and a nitrogen protection pipeline 6 is installed at the top of the kettle cover 7.
[0026] The shape of the dispersing blade 9 is serrated. The dispersing blade 9, the auxiliary stirring blade 4 and the main stirring blade 3 are all four blades. The dispersing blade 9, the auxiliary stirring blade 4 and the main stirring blade 3 are all distributed at intervals of 90 degrees. The auxiliary stirring blade 4 is located at one-third of the height of the main shaft 5. The distance between the auxiliary stirring blade 4 and the main stirring blade 3 is A, and the distance between the dispersing blade 9 and the auxiliary stirring blade 4 is 1.3 - 1.5A.
[0027] The installation position of the dispersing blade 9 is at half of the height of the calculated stirring vortex liquid surface. After calculation, the distance between the auxiliary stirring blade 4 and the main stirring blade 3 is A, and the distance between the dispersing blade 9 and the auxiliary stirring blade 4 is 1.3 - 1.5A. The auxiliary stirring blade is at one-third of the height of the main shaft 5. By this method, the foam generated in the reactor is dispersed, and the gas generated by the breaking of the foam is quickly discharged in cooperation with the nitrogen protection pipeline 6 provided in the reactor. The nitrogen protection pipeline 6 uses negative pressure collection or air pump extraction to continuously circulate the gas inside the reactor.
[0028] Four guide plates 2 are installed on the inner wall of the reactor body 1. The guide plates 2 are arc-shaped, and diversion holes 8 are provided on the surface of the guide plates 2.
[0029] The guide plates 2 are set to have a curvature to better guide the flow of the liquid in the reactor 1, thereby accelerating the reaction progress. And in order to reduce the possibility of generating dead materials due to increasing the area of the guide plates 2, a rectangular hole 8 is opened on the surface of the guide plates 2, and the liquid material will flow through the diversion holes 8 and pass through the guide plates 2, which will greatly reduce the possibility of generating dead materials.
[0030] During specific use, the foaming blades 9 are used to break up the foam generated in the reaction kettle, and in cooperation with the nitrogen protection pipeline 6 provided in the reaction kettle, the gas generated by the broken foam is quickly discharged. The nitrogen protection pipeline 6 uses negative pressure collection or air pump extraction to continuously circulate the internal gas of the reaction kettle. The flow guide plate 2 is set to have a curvature to better guide the flow of the liquid in the reaction kettle 1, thereby accelerating the reaction progress. And in order to reduce the possibility of dead material generation due to the increased area of the flow guide plate 2, a rectangular hole 8 is opened on the surface of the flow guide plate 2, and the liquid material will flow through the flow guide hole 8 and pass through the flow guide plate 2, which will greatly reduce the possibility of dead material generation.
[0031] The above are only the preferred embodiments of the present invention, and it does not limit the protection scope of the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any changes, modifications, substitutions, integrations, and parameter changes made to these embodiments by means of conventional substitutions or capable of achieving the same functions without departing from the principle and spirit of the present invention fall within the protection scope of the present invention.
Claims
1. A reactor for accelerating the reaction process, characterized in that: It includes a reactor body (1), a kettle cover (7) is installed at the top of the reactor body (1), a main shaft (5) is rotatably connected inside the reactor body (1), a dispersing paddle (9) is installed at the top of the main shaft (5), an auxiliary stirring paddle (4) is installed in the middle of the main shaft (5), a main stirring paddle (3) is installed at the bottom of the main shaft (5), and a nitrogen protection pipeline (6) is installed at the top of the kettle cover (7).
2. The reactor for accelerating the reaction process according to claim 1, wherein: The shape of the dispersing paddle (9) is serrated. The dispersing paddle (9), the auxiliary stirring paddle (4) and the main stirring paddle (3) are all four-blade paddles, and the dispersing paddle (9), the auxiliary stirring paddle (4) and the main stirring paddle (3) are all distributed at intervals of 90 degrees.
3. The reactor for accelerating the reaction process according to claim 2, characterized in that: The auxiliary stirring paddle (4) is located at one-third of the height of the main shaft (5). The distance between the auxiliary stirring paddle (4) and the main stirring paddle (3) is A, and the distance between the dispersing paddle (9) and the auxiliary stirring paddle (4) is 1.3 - 1.5A.
4. The reactor for accelerating the reaction process according to claim 3, wherein: Four guide plates (2) are installed on the inner wall of the reactor body (1). The guide plates (2) are arc-shaped, and guide holes (8) are formed on the surfaces of the guide plates (2).