Reaction kettle for improving flow field
By setting a guide cylinder, a staponis, and overflow in the production reaction kettle of the ternary front drive to optimize the flow field structure, the problem of disorders in the existing reaction kettle is solved, and the product's yield is improved.
Patent Information
- Application Number
- CN202420298555.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-18
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-02-18
AI Technical Summary
In the existing ternary precursor production reactor, the flow field disorder is difficult to control, resulting in insufficient raw material reaction and low product yield.
A reactor that improves the flow field is designed. By setting a conductor, a stagnation, and overflow in the kettle body, the position relationship between the conductor and the stream of the stream is optimized to form a structure that is conducive to the flow field cycle.
By optimizing the flow field structure, the flow field disorder in the cycle is reduced, the circulating flow field of the slurry in the reaction kettle is improved, and the product's yield is improved.
Smart Images
Figure CN222401444U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ternary precursor production, in particular to a reaction kettle with improved flow field. Background Art
[0002] In the ternary precursor production process, the synthesis process is the core process of the entire product production. In the prior art, when synthesizing the ternary precursor, each raw material is generally added into a reactor, and then stirred to disperse each raw material in the slurry in the reactor in time so that each raw material can react fully.
[0003] When the reaction is carried out, the slurry needs to be stirred by the stirring device in the reactor to form a flow field for the slurry in the reactor. Under ideal conditions, the flow field moves rapidly downward in the middle of the reactor to mix the raw materials; then moves from the bottom of the reactor to the edge of the reactor; after reaching the edge, it moves upward more slowly to allow the raw materials to react fully; finally, it moves back to the middle of the reactor in the upper area of the reactor to re-circulate.
[0004] However, in the existing reactor, when stirring is performed by a stirring device, the flow field is relatively chaotic and difficult to control, the raw materials cannot react well, and the yield of the product is low. Utility Model Content
[0005] In view of this, the utility model provides a reactor with improved flow field, which can improve the flow field when the slurry circulates in the reactor and improve the yield of the product.
[0006] The utility model provides a reaction kettle with improved flow field, comprising a kettle body, a stirring device, a guide cylinder, a feed pipe and a baffle plate, wherein the stirring device is arranged in the kettle body, the guide cylinder is sleeved outside the stirring device, a first guide port is formed at the bottom of the guide cylinder, a second guide port is opened on the side wall of the upper part of the guide cylinder, the discharge port of the feed pipe extends into the guide cylinder, the height of the lower end of the baffle plate in the kettle body is lower than the height of the first guide port of the guide cylinder in the kettle body, and the height of the upper end of the baffle plate in the kettle body is higher than the height of the lower edge of the second guide port of the guide cylinder in the kettle body.
[0007] Furthermore, a shielding portion is formed between two of the second flow guide ports at the upper portion of the guide tube, and a plurality of the second flow guide ports and the shielding portion are sequentially arranged at intervals.
[0008] Furthermore, along a cross section perpendicular to the axis of the kettle body, a line connecting at least one of the baffle plates and the axis of the kettle body passes through the second guide port.
[0009] Furthermore, an overflow port is provided on the kettle body, and the height of the overflow port is higher than the height of the second guide port.
[0010] Furthermore, when viewed along the axial direction of the kettle body, the overflow port corresponds to the position of the shielding portion of the guide sleeve.
[0011] Furthermore, the sum of the areas of the second guide ports is 1-1.5 times the cross-sectional area of the guide tube perpendicular to the axis.
[0012] Furthermore, in a single guide tube, the height of the second guide port is 0.7-1.1 times the width of the second guide port in the circumferential direction of the kettle body.
[0013] Furthermore, a second insulation sleeve is arranged inside the side wall of the guide tube, and a communication port for the insulation liquid to enter and exit is arranged at the connection between the guide tube and the top of the kettle body.
[0014] Furthermore, an outward flange is formed on the edge of the bottom of the guide cylinder.
[0015] Furthermore, an overflow port is provided at the upper portion of the reactor, and a feed port is provided at the upper portion of the filter tank. The overflow port is connected to the feed port through a connecting pipe, and the height of the overflow port is higher than the height of the feed port.
[0016] In summary, in the present invention, by setting the guide tube and the relative position of the baffle plate and the guide tube, the turbulence of the flow field in the entire cycle can be reduced, the flow field of the slurry when circulating in the reactor can be improved, and the yield of the product can be improved. By setting the position relationship between the second guide port of the guide tube and the baffle plate and the overflow port, the flow field can be further optimized.
[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Shown is a schematic structural diagram of a reaction kettle with improved flow field provided by an embodiment of the utility model.
[0019] Figure 2 Shown Figure 1 Schematic diagram of the structure of the middle guide tube.
[0020] Figure 3 The figure shows a schematic diagram of the positional relationship between the second guide port on the guide cylinder and the baffle plate when viewed along the axial direction of the kettle body. DETAILED DESCRIPTION
[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the present invention, the following is a detailed description in conjunction with the accompanying drawings and preferred embodiments.
[0022] The utility model provides a reaction kettle with improved flow field, which can improve the flow field when slurry circulates in the reaction kettle and improve the yield of products.
[0023] Figure 1 The figure is a schematic diagram of the structure of a reaction kettle with improved flow field provided by an embodiment of the utility model. Figure 2 Shown Figure 1 Schematic diagram of the structure of the middle guide tube. Figure 3 The figure shows the positional relationship between the second guide port on the guide cylinder and the baffle plate when viewed along the axis of the kettle body. Figures 1 to 3 As shown, the reactor with improved flow field provided by the embodiment of the utility model comprises a reactor body 10, a stirring device 20, a guide cylinder 30, a feed pipe 40 and a baffle 50. The stirring device 20 is arranged in the reactor body 10. The guide cylinder 30 is sleeved outside the stirring device 20, so that a first area 11 located inside the guide cylinder 30 and a second area 12 located outside the guide cylinder 30 are formed in the reactor body 10, a first guide port 31 is formed at the bottom of the guide cylinder 30, and a second guide port 32 is opened on the side wall of the upper part of the guide cylinder 30. The discharge port of the feed pipe 40 extends into the first area 11, that is, into the guide cylinder 30. The baffle plate 50 is vertically arranged on the side wall of the kettle body 10, the height of the lower end of the baffle plate 50 in the kettle body 10 is lower than the height of the first guide port 31 of the guide cylinder 30 in the kettle body 10, and the height of the upper end of the baffle plate 50 in the kettle body 10 is higher than the height of the lower edge of the second guide port 32 of the guide cylinder 30 in the kettle body 10.
[0024] In this embodiment, when the product is produced, the raw material can be fed into the slurry in the first area 11 of the kettle body 10 through the feed pipe 40; with the stirring of the stirring device 20, the slurry with new raw materials will move downward under the drive of the stirring device 20. Due to the existence of the guide cylinder 30, in the first area 11, the slurry cannot diffuse to the periphery of the kettle body 10, and can only move downward with the flow field; when the slurry flows out from the bottom of the guide cylinder 30 with the flow field, with the stirring of the stirring device 20, the slurry reaches the second area 12 and moves toward the edge of the kettle body 10; when the slurry reaches the edge of the kettle body 10, it will continue to be affected by the flow field and move upward at the edge of the kettle body 10; because during the stirring process of the stirring device 20, the slurry actually reaches the edge of the kettle body 10 while rotating around the axis of the stirring device 20, at this time, the flow field will not only move upward, but also make a certain rotational movement; in this embodiment, the existence of the baffle 50 suppresses the rotational movement of the slurry, but guides the movement of the flow field from bottom to top. Since the uppermost end of the baffle plate 50 is higher than the lower edge of the second guide port 32, and the lowermost end of the baffle plate 50 is lower than the lower edge of the second baffle plate 50, the guide cylinder 30 can complete the guidance during the entire upward movement of the flow field, and finally the slurry re-enters the guide cylinder 30 from the second guide port 32 to complete a cycle.
[0025] That is, by setting the guide cylinder 30 and the relative position of the baffle plate 50 and the guide cylinder 30, the turbulence of the flow field in the whole cycle can be reduced, the flow field of the slurry when circulating in the reactor can be improved, and the yield of the product can be improved.
[0026] Further, in this embodiment, at the upper part of the guide cylinder 30, two second guide ports 32 (see Figure 3 A shielding portion 33 is formed between the unfilled area of the middle guide tube 30 (see Figure 3 The filling area of the guide tube 30 is formed in the middle of the guide tube 30, that is, the upper side wall of the guide tube 30 is not completely open, and the second guide port 32 is an opening formed in the upper part of the guide tube 30. There can be multiple second guide ports 32 and shielding portions 33, which are arranged in sequence.
[0027] By setting the shielding portion 33 and the second guide port 32 at intervals, the flow velocity of the flow field when entering the first area 11 can be effectively increased, so that the flow field can more easily mix the raw materials in the first area 11 .
[0028] Please continue to refer to Figure 3There are multiple baffles 50, and the multiple baffles 50 are arranged on the inner side wall of the kettle body at intervals along the circumferential direction. In this embodiment, along the cross section perpendicular to the axis of the kettle body 10, the line between at least one baffle 50 and the axis of the kettle body 10 passes through the second guide port 32. That is, from the direction along the axis of the kettle body 10, the baffle 50 corresponds to the position of the second guide port 32 of the guide sleeve 30.
[0029] This enables the slurry to re-enter the guide tube 30 more quickly when the baffle plate 50 guides the flow field.
[0030] Furthermore, an overflow port 13 is provided on the kettle body 10. When the liquid level of the slurry is higher than the overflow port 13, the slurry will flow out through the overflow port 13 to filter and clear the product formed in the slurry.
[0031] In this embodiment, the height of the overflow port 13 is higher than the height of the second guide port 32. From the axial direction of the kettle body 10, the overflow port 13 corresponds to the position of the shielding portion 33 of the guide sleeve 30. That is, along the cross section perpendicular to the axis of the kettle body 10, the line between the overflow port 13 and the axis of the kettle body 10 passes through the shielding portion 33. When the overflow port 13 is set in this area, due to the existence of the shielding portion 33, the flow velocity of this area during the flow field circulation is low, and the overflow of the formed product can be better performed.
[0032] Furthermore, in this embodiment, the sum of the areas of all the second guide ports 32 is 1-1.5 times the cross-sectional area of the guide tube 30 perpendicular to the axis. Through the above arrangement, the flow field can quickly and efficiently enter the guide tube 30, accelerate the material running speed, shorten the synthesis time, and effectively ensure the product particle size distribution.
[0033] Further, for a single second flow guide opening 32 , the height of the second flow guide opening 32 is 0.7-1.1 times the width of the second flow guide opening 32 along the circumferential direction of the kettle body 10 .
[0034] Please continue to refer to Figure 1 and Figure 2 In this embodiment, a first insulation sleeve (not shown) is provided in the side wall of the kettle body 10, a second insulation sleeve 34 is provided in the side wall of the guide cylinder 30, and a connecting port 35 for entering and exiting the insulation liquid is provided at the connection between the guide cylinder 30 and the top of the kettle body 10.
[0035] An outward flange 36 is formed at the bottom edge of the guide cylinder 30 to guide the flow of the slurry and reduce the interference with the flow field.
[0036] Furthermore, a fixing ear 14 is provided in the middle of the kettle body 10 to adjust the center of the kettle body 10 .
[0037] In summary, in the present invention, by setting the guide tube 30 and the relative position of the baffle plate 50 and the guide tube 30, the turbulence of the flow field in the entire cycle can be reduced, the flow field of the slurry when circulating in the reactor can be improved, and the yield of the product can be improved. By setting the position relationship between the second guide port 32 of the guide tube 30 and the baffle plate 50 and the overflow port 13, the flow field can be further optimized.
[0038] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A reactor with improved flow field, characterized in that: The invention comprises a kettle body, a stirring device, a guide cylinder, a feed pipe and a baffle plate, wherein the stirring device is arranged in the kettle body, the guide cylinder is sleeved outside the stirring device, a first guide port is formed at the bottom of the guide cylinder, a second guide port is opened on the side wall of the upper part of the guide cylinder, the discharge port of the feed pipe extends into the guide cylinder, the height of the lower end of the baffle plate in the kettle body is lower than the height of the first guide port of the guide cylinder in the kettle body, and the height of the upper end of the baffle plate in the kettle body is higher than the height of the lower edge of the second guide port of the guide cylinder in the kettle body.
2. The reaction kettle with improved flow field according to claim 1, characterized in that: A shielding portion is formed between two of the second flow guide ports at the upper portion of the guide tube, and a plurality of the second flow guide ports and the shielding portion are sequentially arranged at intervals.
3. The reaction kettle with improved flow field according to claim 1, characterized in that: In a cross section perpendicular to the axis of the kettle body, a line connecting at least one of the baffle plates and the axis of the kettle body passes through the second flow guide port.
4. The reaction kettle with improved flow field according to claim 2, characterized in that: An overflow port is arranged on the kettle body, and the height of the overflow port is higher than the height of the second guide port.
5. The reaction kettle with improved flow field according to claim 4, characterized in that: When viewed along the axial direction of the kettle body, the overflow port corresponds to the position of the shielding portion of the guide sleeve.
6. The reaction kettle with improved flow field according to claim 1, characterized in that: The sum of the areas of the second guide ports is 1-1.5 times the cross-sectional area of the guide tube perpendicular to its own axis.
7. The reaction kettle with improved flow field according to claim 1, characterized in that: In a single guide cylinder, the height of the second guide opening is 0.7-1.1 times the width of the second guide opening in the circumferential direction of the kettle body.
8. The reaction kettle with improved flow field according to claim 1, characterized in that: A second heat-insulating sleeve is arranged inside the side wall of the guide cylinder, and a connecting port for entering and exiting the heat-insulating liquid is arranged at the connection between the guide cylinder and the top of the kettle body.
9. The reaction kettle with improved flow field according to claim 1, characterized in that: An outward flange is formed on the edge of the bottom of the guide cylinder.
10. The reaction kettle with improved flow field according to claim 1, characterized in that: An overflow port is arranged at the top of the reactor, and the reactor also includes a filter tank connected to the reactor body. A feed port is arranged at the top of the filter tank. The overflow port is connected to the feed port through a connecting pipe, and the height of the overflow port is higher than that of the feed port.