Reaction kettle with built-in solid-liquid separation device
By setting up a solid-liquid separation device in the reactor, the problems of poor environmental consistency and high cost of filtration equipment in the prior art are solved, and efficient production of ternary precursors is achieved, product quality is improved and equipment costs are reduced.
Patent Information
- Application Number
- CN202420239557.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-01-31
AI Technical Summary
In the production of ternary precursors, the filtration and concentration equipment in the prior art is located outside the reactor, resulting in poor environmental consistency, affecting product quality, and the installation method is high and the area covers a large amount.
Design a reactor with built-in solid-liquid separation device. A solid-liquid separation device is installed in the kettle body, including a fixing frame, connecting pipe and filter element. The filter element is located in the middle of the flow blocking plate, forming a weak flow field and reducing negative pressure convection. The influence of the field enables direct solid-liquid separation of the slurry.
It improves the yield of the ternary precursor, reduces equipment costs, ensures the normal reaction of raw materials in the kettle body, and better solid-liquid separation.
Smart Images
Figure CN222267115U_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 a built-in solid-liquid separation device. 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, the raw materials are generally added to the reactor and stirred to react; then the slurry after the reaction is sent to an external filtration and concentration device for filtration and concentration. However, the above-mentioned filtration and concentration device is located outside the reactor. When the precursor is produced, the environment of the filtration device is less consistent with the environment of the reactor, which cannot guarantee the quality of the ternary precursor; in addition, the above-mentioned setting method will also make the cost of the entire system higher and occupy a larger area. Utility Model Content
[0003] In view of this, the utility model provides a reactor with a built-in solid-liquid separation device. The solid-liquid separation device is directly arranged inside the reactor to directly separate the solid and liquid of the slurry in the reactor, so as to improve the yield of the ternary precursor and reduce the cost of the equipment.
[0004] The utility model provides a reaction kettle with a built-in solid-liquid separation device, comprising a kettle body, a solid-liquid separation device and a pump body, wherein the solid-liquid separation device is arranged on the top of the kettle body and extends downward, a baffle is arranged on the inner side wall of the kettle body, the solid-liquid separation device comprises a fixing frame, a connecting pipe and a filter element, the fixing frame is fixed on the kettle body, the connecting pipe is arranged on the fixing frame, one end of the connecting pipe is connected to the filter element, and the other end is connected to the pump body, and the height of the filter element away from one end of the connecting pipe in the kettle body is at least lower than the highest height of the baffle.
[0005] Furthermore, the height of one end of the filter element facing the connecting pipe in the kettle body is higher than the highest height of the baffle plate.
[0006] Furthermore, there are a plurality of baffles, and the plurality of baffles are arranged on the inner side wall of the kettle body along the circumferential direction of the kettle body, and the solid-liquid separation device is arranged between two of the baffles.
[0007] Further, viewed along the axis direction of the kettle body, the distance between the side edge of the baffle away from the side wall of the kettle body and the axis of the kettle body is D / 5 to 3D / 50, wherein D is the diameter of the kettle body.
[0008] Furthermore, viewed along the axial direction of the kettle body, the distance between the filter element on the solid-liquid separation device that is farthest from the axis of the kettle body and the axis of the kettle body is greater than D / 4, where D is the diameter of the kettle body.
[0009] Furthermore, the distance between the filter element on the solid-liquid separation device that is farthest from the axis of the kettle body and the axis of the kettle body is greater than the distance between the side edge of the baffle away from the side wall of the kettle body and the axis of the kettle body.
[0010] Furthermore, the connecting pipe includes a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are respectively arranged on both sides of the fixing frame, the first connecting pipe is connected to the pump body, the second connecting pipe extends into the kettle body, and the filter element is connected to the second connecting pipe.
[0011] Furthermore, there are multiple filter elements, the diameter of the filter element is 10-160 mm, and the spacing between two filter elements is 1 / 6d-d, where d is the diameter of the filter element.
[0012] Furthermore, a second connection portion is formed at one end of the filter element away from the fixing frame, the solid-liquid separation device also includes a fixing plate fixed to the reactor, and the filter element is connected to the fixing plate via the second connection portion.
[0013] Furthermore, the filter element is alloy sintered felt or non-metal sintered felt.
[0014] In summary, the utility model can directly perform solid-liquid separation of slurry in the kettle by directly setting the solid-liquid separation device in the kettle. Furthermore, by setting the height of the filter element, the lowest point of the filter element is located in the middle of the baffle plate, so that the filter element can be located in a weaker flow field, which can enable the filter element to better separate the solid and liquid of the slurry and reduce the impact of the negative pressure in the solid-liquid separation device on the flow field of the slurry in the kettle. While ensuring the normal reaction of the raw materials in the kettle, the slurry can be better separated from the solid and liquid.
[0015] 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
[0016] Figure 1 Shown is a schematic structural diagram of a reactor with a built-in solid-liquid separation device provided in an embodiment of the utility model.
[0017] Figure 2The figure shows the positional relationship between the solid-liquid separation device and the baffle along the axial direction of the kettle body.
[0018] Figure 3 Shown is a schematic diagram of the axial structure of the fixing frame of the concentration and filtration device.
[0019] Figure 4 Shown Figure 3 Schematic diagram of the structure of the middle fixing frame viewed from above.
[0020] Figure 5 Shown is a schematic diagram of the structure of the filter element of the concentration and filtration device. 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 reactor with a built-in solid-liquid separation device. The solid-liquid separation device is directly arranged inside the reactor to directly separate the solid and liquid of the slurry in the reactor, so as to improve the yield of the ternary precursor and reduce the cost of the equipment.
[0023] Figure 1 The figure shows the structure diagram of a reactor with a built-in solid-liquid separation device provided in an embodiment of the utility model. Figure 2 The figure shows the positional relationship between the solid-liquid separation device and the baffle along the axis of the kettle body. Figure 1 to Figure 2 As shown, the reactor with built-in filtering device provided by the utility model comprises a kettle body 10, a solid-liquid separation device 20 and a pump body 30. The solid-liquid separation device 20 is arranged at the top of the kettle body 10 and extends downward, and a baffle 11 is arranged on the inner side wall of the kettle body 10. The solid-liquid separation device 20 comprises a fixing frame 21, a connecting pipe 22 and a filter element 23, the fixing frame 21 is fixed on the kettle body 10, the connecting pipe 22 is arranged on the fixing frame 21, one end of the connecting pipe 22 is connected to the filter element 23, and the other end is connected to the pump body 30. The height of the filter element 23 away from one end of the connecting pipe 22 in the kettle body 10, that is, the height of the lowest point of the filter element 23, is at least lower than the highest height of the baffle 11.
[0024] In this embodiment, when performing solid-liquid separation, the pump body 30 is started, and then a negative pressure is formed in the filter element 23. The negative pressure separates the solid and liquid in the slurry, and the liquid enters the filter element 23 and is discharged out of the reactor through the connecting pipe 22. The solid is retained in the reactor while the liquid is discharged from the reactor to concentrate the slurry in the reactor.
[0025] In this embodiment, when producing the ternary precursor, a flow field can be formed in the kettle 10 by stirring, and the slurry can move downward in the middle of the kettle 10 under the drive of the stirring device, and at the edge of the kettle 10, the slurry will move upward to form an up-and-down circulation flow field. The flow field at the edge of the kettle 10 can be weakened by setting the baffle 11. By setting the height of the filter element 23, the lowest point of the filter element 23 is located in the middle of the baffle 11, so that the filter element 23 can be located in a weaker flow field, which can make the filter element 23 better separate the solid and liquid of the slurry and reduce the influence of the negative pressure in the solid-liquid separation device 20 on the flow field of the slurry in the kettle 10. While ensuring the normal reaction of the raw materials in the kettle 10, the slurry can be better separated from the solid and liquid.
[0026] Further, in this embodiment, the height of the end of the filter element 23 facing the connecting pipe 22 in the kettle body 10, that is, the height of the highest point of the filter element 23, is higher than the highest height of the baffle plate 11. In other words, the highest position of the baffle plate 11 is located in the middle of the filter element 23. The above-mentioned position setting can reduce the influence of the baffle plate 11 on the flow field of the slurry in the kettle body 10 at the upper part of the kettle body 10. At the same time, it can also meet the installation height requirement of the filter element 23 in the kettle body 10.
[0027] In this embodiment, the stirring device is coaxially arranged with the kettle body 10 to better drive the raw materials added into the kettle body 10 .
[0028] In this embodiment, there may be a plurality of baffles 11 , which are arranged on the inner wall of the kettle body 10 along the circumference of the kettle body 10 , and the solid-liquid separation device 20 is disposed between two baffles 11 .
[0029] like Figure 2 As shown, along the axial direction of the kettle body 10, the distance between the side edge of the baffle plate 11 away from the side wall of the kettle body 10 and the axis of the kettle body 10 (as shown in FIG. Figure 2 As shown in a) in FIG. 1 , D / 5 to 3D / 50, wherein D is the diameter of the kettle body 10.
[0030] In this embodiment, there are multiple filter elements 23, and each filter element 23 is connected to a connecting pipe 22. Figure 2 As shown, along the axis direction of the kettle body 10, the distance between the filter element 23 on the solid-liquid separation device 10 that is farthest from the axis of the kettle body and the axis of the kettle body 10 (as shown in FIG. Figure 2 As shown in b, Figure 2 The circle in the figure only represents the range where the filter element 23 is actually distributed) is greater than D / 4, where D is the diameter of the kettle body 10.
[0031] Furthermore, in this embodiment, the distance between the filter element 23 on the solid-liquid separation device 20 which is farthest from the axis of the kettle body 10 and the axis of the kettle body 10 is greater than the distance between the side edge of the baffle 11 away from the side wall of the kettle body 10 and the axis of the kettle body 10.
[0032] Figure 3 The figure shows the axial structural diagram of the fixing frame of the concentration and filtration device. Figure 4 Shown Figure 3 Schematic diagram of the structure of the middle fixed frame from above. Figure 5 The figure shows the structure of the filter element of the concentration and filtration device. Figures 3 to 5 As shown, in this embodiment, the connecting pipe 22 includes a first connecting pipe 221 and a second connecting pipe 222 which are interconnected. The first connecting pipe 221 and the second connecting pipe 222 are respectively arranged on both sides of the fixing frame 21. When the fixing frame 21 is fixed on the kettle body 10, the second connecting pipe 222 extends into the kettle body 10. The filter element 23 is connected to the second connecting pipe 222. The first connecting pipe 221 is connected to the pump body 30. Through the above arrangement, when the filter element 23 is installed, the filter element 23 can be completely immersed below the liquid level of the slurry in the kettle body 10. This can prevent the filter element 2333 from being sucked in air due to contact with the air.
[0033] Furthermore, in this embodiment, the first connecting pipe 221 and the second connecting pipe 222 can be directly fixed on the fixing frame 21 and communicate with each other.
[0034] A quick-connect plug (not shown) is provided at one end of the first connecting pipe 221 away from the fixing frame 21 to facilitate connection with the pipeline on the pump body 30 .
[0035] The second connecting tube 222 extends in the vertical direction and has a threaded opening 2221 for connection formed at the end away from the fixing frame 21. The filter element 23 has a first connecting portion 231 formed on the end facing the second connecting tube 222. The filter element 23 is threadedly engaged with the second connecting tube 222 through the first connecting portion 231 and is fixed to the second connecting tube 222 in the vertical direction.
[0036] The filter element 23 can be alloy sintered felt or non-metal sintered felt.
[0037] In this embodiment, the diameter of each filter element 23 is 10-160 mm, preferably 10-50 mm. Figure 4 c) is 1 / 6d-d, d is the diameter of the filter element 23. It should be explained that the two filter elements 33 refer to one filter element 33 and the other filter element 33 that is closest to it, and the spacing between the two filter elements 33 refers to the closest straight-line distance between the peripheries of the two filter elements 33.
[0038] By limiting the length and diameter of the filter element 23 , during solid-liquid separation, the liquid in the slurry can be efficiently sucked out, while solids can be prevented from being clogged between the two filter elements 23 and reducing the filtering performance of the filter element 23 .
[0039] A second connection portion 232 is formed on one end of the filter element 23 away from the fixing frame 21. The solid-liquid separation device 20 further includes a fixing plate 24. The filter element 23 is connected to the fixing plate 24 via the second connection portion 232. The fixing plate 24 is fixed to the kettle body 10. Through the above arrangement, the filter element 23 can be prevented from shaking under the action of the flow field in the kettle body 10, thereby reducing the filtering effect.
[0040] Furthermore, the second connecting portion 232 can be a screw arranged at the end of the filter element 23, and a through hole (not shown in the figure) is provided on the fixing plate 24. The second connecting portion 232 extends into the through hole of the fixing plate 24, and the nut 241 is connected to the second connecting portion 232 from the side of the fixing plate 24 away from the filter element 23 to fix the filter element 23 to the fixing plate 24.
[0041] For further information, please refer to Figure 3 A plurality of buckle parts 211 are formed on the fixing frame 21 , and a plurality of clips (not shown) are formed on the kettle body 10 . The buckle parts are combined with the clips on the reaction kettle to fix the fixing frame 21 .
[0042] In summary, the utility model can directly perform solid-liquid separation of slurry in the kettle 10 by directly setting the solid-liquid separation device 20 in the kettle 10. Furthermore, by setting the height of the filter element 23, the lowest point of the filter element 23 is located in the middle of the baffle 11, so that the filter element 23 can be located in a weaker flow field, which can enable the filter element 23 to better separate the solid and liquid of the slurry and reduce the impact of the negative pressure in the solid-liquid separation device 20 on the flow field of the slurry in the kettle 10. While ensuring the normal reaction of the raw materials in the kettle 10, the slurry can be better separated from the solid and liquid.
[0043] 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 a built-in solid-liquid separation device, characterized in that: It includes a kettle body, a solid-liquid separation device and a pump body, the solid-liquid separation device is arranged on the top of the kettle body and extends downward, a baffle is arranged on the inner wall of the kettle body, the solid-liquid separation device includes a fixing frame, a connecting pipe and a filter element, the fixing frame is fixed on the kettle body, the connecting pipe is arranged on the fixing frame, one end of the connecting pipe is connected to the filter element, and the other end is connected to the pump body, the filter element is away from the height of one end of the connecting pipe in the kettle body, and is at least lower than the highest height of the baffle.
2. The reactor with a built-in solid-liquid separation device according to claim 1, characterized in that: The height of one end of the filter element facing the connecting pipe in the kettle body is higher than the highest height of the baffle.
3. The reactor with a built-in solid-liquid separation device according to claim 1, characterized in that: There are a plurality of baffles, and the baffles are arranged on the inner side wall of the kettle along the circumferential direction of the kettle, and the solid-liquid separation device is arranged between two of the baffles.
4. The reactor with a built-in solid-liquid separation device according to claim 1, characterized in that: Viewed along the axis direction of the kettle body, the distance between the side edge of the baffle away from the side wall of the kettle body and the axis of the kettle body is D / 5 to 3D / 50, wherein D is the diameter of the kettle body.
5. The reactor with a built-in solid-liquid separation device according to claim 1, characterized in that: Viewed along the axis direction of the kettle body, the distance between the filter element on the solid-liquid separation device that is farthest from the axis of the kettle body and the axis of the kettle body is greater than D / 4, where D is the diameter of the kettle body.
6. The reactor with a built-in solid-liquid separation device according to claim 1, characterized in that: The distance between the filter element on the solid-liquid separation device that is farthest from the axis of the kettle body and the axis of the kettle body is greater than the distance between the side edge of the baffle away from the side wall of the kettle body and the axis of the kettle body.
7. The reactor with a built-in solid-liquid separation device according to claim 1, characterized in that: The connecting pipe includes a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are respectively arranged on both sides of the fixing frame, the first connecting pipe is connected to the pump body, the second connecting pipe extends into the kettle body, and the filter element is connected to the second connecting pipe.
8. The reactor with a built-in solid-liquid separation device according to claim 1, characterized in that: There are multiple filter elements, the diameter of each filter element is 10-160 mm, and the spacing between two filter elements is 1 / 6d-d, where d is the diameter of the filter element.
9. The reactor with a built-in solid-liquid separation device according to claim 1, characterized in that: A second connection portion is formed at one end of the filter element away from the fixing frame, the solid-liquid separation device further comprises a fixing plate fixed to the reaction kettle, and the filter element is connected to the fixing plate via the second connection portion.
10. The reactor with a built-in solid-liquid separation device according to claim 1, characterized in that: The filter element is alloy sintered felt or non-metal sintered felt.