Concentration tank for ternary precursor
By introducing a conductive state switching structure and a multifunctional particle size-oriented screening assembly into the ternary precursor concentration tank, the problem of solid particles is solved, and the solid content of the material liquid and the improvement of the spherical shape of the precursor is achieved.
Patent Information
- Application Number
- CN202420829566.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-04-19
AI Technical Summary
During the ternary precursor concentration process, the particle size of the solid particles is small and it is prone to flow out with the clear liquid, resulting in loss of raw materials and a decrease in the solid content of the material liquid.
A concentrated tank for a ternary precursor is designed, including a conduction state switching structure and a multifunctional particle size-oriented screening assembly. This structure disperses solid particles by stirring leaves, and when the particle size meets the requirements, the filtering conduit is opened to ensure that the solid particles settle and avoid loss.
It effectively reduces the loss of solid particles, ensures the solid content of the material liquid, and improves the spherical shape of the precursor.
Smart Images
Figure CN222510724U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a ternary precursor concentration structure, in particular to a concentration tank body used for the ternary precursor. Background Art
[0002] The quality of the ternary positive electrode material determines the performance of the lithium battery, and the quality of the ternary precursor determines the quality of the ternary positive electrode material. After the reaction, the existing reactor needs to pass the feed liquid to the concentration tank for secondary concentration, and the concentrated slurry after the bottom concentration is returned to the reactor for further reaction, while the upper clear liquid of the feed liquid is continuously discharged to the outside to control the solid content of the feed liquid. Before the supernatant is discharged, it needs to be filtered to prevent solid particles from flowing away with the supernatant. However, in the initial stage of the reaction, the particle size of the solid particles is small, and it is easy for some of them to flow away with the holes in the filter medium, resulting in a reduction in the solid content of the feed liquid, and also leading to the loss of raw materials.
[0003] Therefore, this case aims to provide a concentration tank for ternary precursors, which can determine the particle size of solid particles in the liquid feed and open and close the filtration channel according to the particle size. It can not only allow the solid particles that meet the requirements to settle to the bottom of the concentration tank, but also reduce the loss of particles with smaller particle sizes, thereby ensuring the solid content of the liquid feed and the sphericity of the particles. Utility Model Content
[0004] The utility model provides a concentration tank for a ternary precursor, which can effectively solve the above problems.
[0005] The utility model is achieved in this way:
[0006] A concentrating tank for a ternary precursor comprises a concentrating tank, a feed pipe is connected to the top of the concentrating tank, a concentrated slurry output pipe is connected to the bottom of the concentrating tank, the feed pipe and the concentrated slurry output pipe are both connected to a reactor, a clear liquid output pipe is connected to the side of the concentrating tank, a plurality of filtering structures are arranged on the side of the clear liquid output pipe close to the concentrating tank, a stirring shaft is arranged on the concentrating tank, and the concentrating tank further comprises:
[0007] A conduction state switching structure, wherein the filtering structure comprises an external output pipe connected to the clear liquid output pipe, a plurality of filter ducts are arranged at the lower end of the external output pipe, and the feed liquid is filtered through the filter duct and then the clear liquid is output to the clear liquid output pipe through the external output pipe, a plurality of stirring blades are fixedly connected to the stirring shaft, the conduction state switching structure comprises a conduction pipe attached to the lower end of the filter duct, the conduction pipe is hollow, the opening of the conduction pipe faces the stirring blade, a row of conduction holes corresponding to the number of the filter ducts is arranged on the top of the conduction pipe, a rotating motor is also arranged on the side of the conduction pipe close to the concentration tank body, a multifunctional particle size guide screening component is arranged in the conduction pipe, the conduction pipe closes the filter duct in the initial state, and when the multifunctional particle size guide screening component detects that the solid particles meet the particle size requirement, the rotating motor drives the conduction pipe to rotate, so that the conduction holes are connected to the filter duct, and the clear liquid starts to be discharged from the clear liquid output pipe.
[0008] As a further improvement, a plurality of lower drainage holes are provided in the lower half of the conducting tube, and a transverse drainage structure is arranged below the conducting tube. The transverse drainage structure includes a movable clamp seat located below the conducting tube, and guide holes are provided at the top and bottom of the movable clamp seat.
[0009] As a further improvement, a slidably connected closing member is provided at the bottom of the movable clamp seat, and the closing member is used to open and close the guide hole. The closing member is electrically connected to the rotating motor, and when the rotating motor rotates, the closing member is pushed out synchronously.
[0010] As a further improvement, the closing piece includes a closing plate, the width of the closing plate is the same as that of the movable clamp seat, the closing plate is provided with a row of holes corresponding to the guide holes, the closing plate is driven by a transverse push rod, and the row of holes is staggered with the guide hole when the closing plate is pushed out.
[0011] As a further improvement, a containing bucket is provided below the movable clamping seat, and the containing bucket extends to the bottom of the concentration tank body through a downward extension pipe.
[0012] As a further improvement, a plurality of drainage holes are provided on the containing bucket, and the aperture of the drainage holes is smaller than the required size of the solid particles.
[0013] As a further improvement, the length of the stirring blade gradually increases from top to bottom.
[0014] As a further improvement, a plurality of barbs are spot-welded on the outer surface of the stirring blade, and the barbs point in the direction of the feed pipe.
[0015] The beneficial effects of the utility model are:
[0016] In the existing ternary precursor concentration process, in the initial stage of concentration, the particle size of solid particles in the feed liquid has not yet met the requirements, and the particle size is small, so it is easy to flow out directly with the clear liquid, and the filter element cannot filter it, which not only leads to the loss of raw material particles, but also easily affects the solid content of the feed liquid. Therefore, the utility model adds a conduction state switching structure, and the conduction pipe of the conduction state switching structure is directly facing the position of the stirring blade. After the feed liquid is put in, the solid particles therein will be broken up by the stirring blade. After the particles and the feed liquid are broken up, they will directly enter the conduction pipe and be detected by the multifunctional particle size guide screening component in the conduction pipe. When the particle size of the solid particles has not yet reached the requirements, the conduction pipe is always closed. The inlet of the filter duct prevents the liquid in the tank from being discharged, and there is no problem of solid particle leakage. At this time, the liquid will be continuously concentrated in the concentration tank until the solid particles meet the requirements, which will cause pressure on the multifunctional particle size guide screening component. Since the multifunctional particle size guide screening component is electrically connected to the rotating motor, the rotating motor will drive the conductive tube to rotate a certain angle, so that the conductive hole of the conductive tube is connected to the filter duct, so that the supernatant can be discharged from the position of the filter duct. At this time, the particle size of the particulate matter meets the concentrated slurry standard, so it will be blocked by the filter duct and will not flow out. Only the supernatant flows out, thereby ensuring the solid content of the liquid, and then ensuring the sphericity of the precursor in the reactor.
[0017] Before the conducting tube is rotated, the solid particles at this time do not meet the requirements, so there is no need for the solid particles to sink to the bottom and reflux, and they still need to return to the concentration tank for further concentration. Therefore, the utility model arranges a transverse drainage structure under the conducting tube. When the solid particles do not meet the requirements, the sealing member seals the lower end of the conducting tube and the movable clamp seat, so that the feed liquid can quickly enter and exit the conducting tube, and the solid particles that do not meet the standards can quickly return to the solution.
[0018] After the solid particles reach the standard, they are ready to sink to the bottom as a concentrated slurry, so the sealing member can be opened to allow the particles entering the conducting pipe to enter the movable clamp seat, and directly enter the bottom of the concentration tank through the containing bucket and the downward extension pipe, thereby completing the sinking directly.
[0019] In the sedimentation stage, in order to prevent a large amount of liquid from sinking to the bottom of the concentration tank, thereby stirring up the concentrated slurry at the bottom, a drainage hole is further provided on the containing bucket in the utility model. The aperture of the drainage hole is smaller than the required size of the solid particles, so that part of the liquid can be discharged through the drainage hole, while the solid particles cannot be flushed out and can only sink to the bottom, thereby increasing the content of the concentrated slurry that has settled to the bottom. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 The utility model is a front view structural schematic diagram of a concentration tank for a ternary precursor.
[0022] Figure 2 The utility model is a schematic diagram of a top view of a concentration tank for a ternary precursor.
[0023] Figure 3 This utility model Figure 2 Cross-section view at AA in the middle.
[0024] Figure 4 It is a three-dimensional structural schematic diagram (first perspective) of a conduction state switching structure and a lateral guide structure of the utility model.
[0025] Figure 5 It is a three-dimensional structural schematic diagram (second viewing angle) of a conduction state switching structure and a lateral guide structure of the utility model.
[0026] Figure 6 It is a top view structural schematic diagram of a conduction state switching structure and a lateral drainage structure of the utility model.
[0027] Figure 7 It is a front view structural schematic diagram of a conduction state switching structure and a lateral drainage structure of the utility model.
[0028] Figure 8 This utility model Figure 6 Cross-section view at the middle BB.
[0029] Fig. 9 This utility model Figure 7 Cross-sectional view at CC.
[0030] In the figure:
[0031] Concentration tank body 10, feed pipe 11, concentrated slurry output pipe 12, clear liquid output pipe 13, stirring shaft 14, stirring blade 141, barbed bar 1411, external output pipe 21, filter duct 22, conducting pipe 31, rotary joint 311, recoil pipe 312, conducting hole 32, rotating motor 33, multifunctional particle size guide screening assembly 34, first inclined guide plate 341, second inclined guide plate 342, baffle plate 343, transverse drainage structure 40, movable clamp seat 41, accommodating bucket 411, drainage hole 4111, lower extension pipe 412, closure member 42, closure sheet 421, transverse push rod 422. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0033] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0034] Reference Figures 1 to 9As shown, a concentration tank for a ternary precursor comprises a concentration tank 10, wherein a feed pipe 11 is connected to the top of the concentration tank 10, and a concentrated slurry output pipe 12 is connected to the bottom of the concentration tank 10, wherein the feed pipe 11 and the concentrated slurry output pipe 12 are both in communication with a reactor, and a clear liquid output pipe 13 is connected to the side of the concentration tank 10, and a plurality of filtering structures are arranged on the side of the clear liquid output pipe 13 close to the concentration tank 10, and a stirring shaft 14 is arranged on the concentration tank 10, and the concentration tank 10 further comprises: a conduction state switching structure, wherein the filtering structure comprises an external output pipe 21 connected to the clear liquid output pipe 13, and a plurality of filtering conduits 22 are arranged at the lower end of the external output pipe 21, and the feed liquid is discharged through the external output pipe 21. After filtration, the filter duct 22 outputs the clear liquid to the clear liquid output pipe 13 through the external output pipe 21. A plurality of stirring blades 141 are fixedly connected to the stirring shaft 14. The conduction state switching structure includes a conduction pipe 31 attached to the lower end of the filter duct 22. The conduction pipe 31 is hollow, and the opening of the conduction pipe 31 faces the stirring blades 141. A row of conduction holes 32 corresponding to the number of the filter duct 22 is provided on the top of the conduction pipe 31. A rotating motor 33 is also installed on the side of the conduction pipe 31 close to the concentration tank 10. A multifunctional particle size guide screening component 34 is installed in the conduction pipe 31. The conduction pipe 31 closes the filter duct 22 in the initial state. When the multifunctional particle size guide screening component 34 detects When the solid particles reach the particle size requirement, the rotating motor 33 drives the conducting tube 31 to rotate, so that the conducting hole 32 is connected to the filtering conduit 22, and the clear liquid begins to be discharged from the clear liquid output pipe 13; the multifunctional particle size guiding and screening component 34 comprises a first inclined guide plate 341 obliquely arranged in the conducting tube 31, and a second inclined guide plate 342 which is also inclined is arranged at the rear side of the first inclined guide plate 341, and the first inclined guide plate 341 and the second inclined guide plate 342 are arranged at intervals, and the gap between the first inclined guide plate 341 and the second inclined guide plate 342 is connected by a blocking plate 343, and the blocking plate 343 is located behind the first inclined guide plate 341 and is completely blocked by the first inclined guide plate 341, and the blocking plate 343 is located behind the first inclined guide plate 341 and is completely blocked by the first inclined guide plate 341. A pressure sensor is provided on the plate 343, and the pressure sensor is connected to an external sensing component through an external wire. The through holes on the first inclined guide plate 341 and the second inclined guide plate 342 are smaller than the particle size requirement of the solid particles, and the through holes on the blocking plate 343 are smaller than the particle size requirement of the solid particles. The feed liquid carries the solid particles and directly flushes onto the first inclined guide plate 341 or the second inclined guide plate 342. The small particles and the feed liquid directly pass through the first inclined guide plate 341 and the second inclined guide plate 342, and the particles blocked by the first inclined guide plate 341 and the second inclined guide plate 342 will gradually be guided by the first inclined guide plate 341 and the second inclined guide plate 342 to the position of the blocking plate 343, and after being blocked by the blocking plate 343, pressure is applied to the pressure sensor.
[0035] In fact, during the distribution process, the feed pipe 11 will be distributed through a distributor, so that the particles in the liquid are distributed more evenly. However, this distribution method is a prior art and will not be described in detail here.
[0036] In this embodiment, one group of clear liquid output tubes 13 is provided, and correspondingly, one group of conduction state switching structures is also provided. In fact, two groups of clear liquid output tubes 13 can also be provided, and two groups of conduction state switching structures can also be provided.
[0037] In this embodiment, the particle size of the solid particles ranges from 9 to 11 μm, so this parameter needs to be considered when setting the first inclined guide plate 341 , the second inclined guide plate 342 , the baffle plate 343 and the filter duct 22 .
[0038] In the existing ternary precursor concentration process, in the initial stage of concentration, the particle size of solid particles in the feed liquid has not yet met the requirements, and the particle size is small, so it is easy to flow out directly with the clear liquid, and the filter element cannot filter it, which not only leads to the loss of raw material particles, but also easily affects the solid content of the feed liquid. Therefore, the utility model adds a conduction state switching structure, and the conduction pipe 31 of the conduction state switching structure is directly facing the position of the stirring blade 141. After the feed liquid is put in, the solid particles therein will be broken up by the stirring blade 141. After the particles and the feed liquid are broken up, they will directly enter the conduction pipe 31 and be detected by the multifunctional particle size guide screening component 34 in the conduction pipe 31. When the particle size of the solid particles has not yet reached the requirements, the conduction pipe 31 always closes the filter conduit 2 2, so that the liquid in the tank cannot be discharged, and there is no problem of solid particles leaking out. At this time, the liquid will be continuously concentrated in the concentration tank 10 until the solid particles meet the requirements, which will cause pressure on the multifunctional particle size guide screening component 34. Since the multifunctional particle size guide screening component 34 is electrically connected to the rotating motor 33, the rotating motor 33 will drive the conducting tube 31 to rotate a certain angle, so that the conducting hole 32 of the conducting tube 31 is connected to the filter duct 22, so that the supernatant can be discharged from the position of the filter duct 22. Since the particle size of the particulate matter meets the concentrated slurry standard at this time, it will be blocked by the filter duct 22 and will not flow out. Only the supernatant flows out, so as to ensure the solid content of the liquid, and then ensure the sphericity of the precursor in the reactor.
[0039] In the detection stage of the multifunctional particle size guide screening component 34, it is different from the traditional particle size detection structure. Although the traditional particle size detection structure also uses the method of detecting the filter pressure or blockage degree to determine whether the filter is blocked, if the particle agglomeration phenomenon is encountered, it is actually very easy to cause misjudgment. However, in the present invention, its multifunctional particle size guide screening component 34 includes three parts, two of which are provided with through holes on the inclined guide plates. When the solid particles do not meet the requirements, the feed liquid and the particles can directly pass through the inclined guide plates, thereby eliminating the need to use the barrier plate 343. Even if partial agglomeration occurs, it will directly agglomerate on the inclined guide plates. It will not affect the baffle plate 343. After the solid particles meet the requirements, part of them will block the inclined guide plate at first, and then gradually flow along the inclined guide plate to the position of the baffle plate 343, allowing the pressure sensor on the baffle plate 343 to determine that it has received the pressure caused by particles of the corresponding particle size, thereby allowing the rotating motor 33 to reverse and reduce the phenomenon of misjudgment. It can also not affect the normal circulation of the feed liquid before the rotating motor 33 rotates. Because the multifunctional particle size guide screening component 34 is arranged in the conducting tube 31 and rotates with the conducting tube 31, the above-mentioned effect can be achieved no matter how it rotates, and it is not affected by the angle of the conducting tube 31.
[0040] Among them, the method of detecting the particle size of particulate matter by using a pressure sensor is an existing technology, so it will not be described in detail.
[0041] Before the conducting pipe 31 rotates, the solid particles at this time do not meet the requirements, so the solid particles at this time do not need to sink to the bottom and reflux, and still need to return to the concentration tank 10 for further concentration. Therefore, a plurality of lower dredging holes are opened in the lower half of the conducting pipe 31 of this embodiment, and a transverse dredging structure 40 is arranged below the conducting pipe 31. The transverse dredging structure 40 includes a movable clamp seat 41 located below the conducting pipe 31. The top and bottom of the movable clamp seat 41 are both provided with guide holes. The bottom of the movable clamp seat 41 is provided with a slidably connected closing member 42, and the closing member 42 is used to open and close the guide hole. The closing member 42 is electrically connected to the rotating motor 33. When the rotating motor 33 rotates, the closing member 42 is synchronously pushed By setting a transverse drainage structure 40 below the conducting pipe 31, when the solid particles do not meet the requirements, the sealing member 42 seals the lower ends of the conducting pipe 31 and the movable clamp seat 41, so that the slurry can quickly enter and exit the conducting pipe 31, and the solid particles that do not meet the standards can quickly return to the solution. After the solid particles meet the standards, they are ready to sink to the bottom as a concentrated slurry, so the sealing member 42 can be opened. Preferably, a receiving bucket 411 is provided below the movable clamp seat 41, and the receiving bucket 411 extends to the bottom of the concentration tank body 10 through a lower extension pipe 412, so that the particles entering the conducting pipe 31 enter the movable clamp seat 41, and directly enter the bottom of the concentration tank body 10 through the receiving bucket 411 and the lower extension pipe 412, thereby completing the sinking directly.
[0042] Specifically, the closing piece 42 includes a closing piece 421, the width of the closing piece 421 is the same as that of the movable clamp seat 41, and a row of holes corresponding to the guide holes are opened on the closing piece 421. The closing piece 421 is driven by a transverse push rod 422. When the closing piece 421 is pushed out, the row of holes and the guide holes are staggered. It should be noted that the position of the closing piece 421 needs to be sealed to prevent the liquid from leaking out when the closing piece 421 moves left and right.
[0043] In the settling stage, in order to prevent a large amount of liquid from sinking to the bottom of the concentration tank 10 and stirring up the concentrated slurry at the bottom, a plurality of drainage holes 4111 are provided on the receiving bucket 411 of the present embodiment, and the aperture of the drainage holes 4111 is smaller than the required size of the solid particles. By providing the drainage holes 4111 on the receiving bucket 411, the aperture of the drainage holes 4111 is smaller than the required size of the solid particles, so that part of the liquid can be discharged through the drainage holes 4111, and the solid particles cannot be flushed out and can only sink to the bottom, thereby increasing the content of the concentrated slurry that settles to the bottom.
[0044] In order to ensure that the concentrated slurry at the bottom can be fully stirred and the stirring blade 141 on the top does not interfere with other structures, the length of the stirring blade 141 gradually increases from top to bottom, thereby achieving two technical effects. Preferably, in order to improve the impact effect of the stirring blade 141 on the falling particles, a plurality of barbed strips 1411 are spot-welded on the outer surface of the stirring blade 141, and the barbed strips 1411 point in the direction of the feed pipe 11. The barbed strips 1411 can directly act on the falling particles, thereby greatly avoiding agglomeration.
[0045] In this embodiment, the filter conduit 22 is filled with a microporous filter medium, and the pore size of the microporous filter medium depends on the requirement of the particle size.
[0046] In order to avoid blockage inside the conducting tube 31, a rotary joint 311 is provided outside the conducting tube 31. The rotary joint 311 is connected to a recoil tube 312. The recoil tube 312 can be fed with nitrogen that does not interfere with the concentration reaction, thereby not interfering with the normal operation of the equipment.
[0047] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A concentration tank for ternary precursors, characterized in that: The invention comprises a concentration tank body (10), wherein a feed pipe (11) is connected to the top of the concentration tank body (10), a concentrated slurry output pipe (12) is connected to the bottom of the concentration tank body (10), the feed pipe (11) and the concentrated slurry output pipe (12) are both in communication with a reaction kettle, a clear liquid output pipe (13) is connected to the side of the concentration tank body (10), a plurality of filtering structures are arranged on a side of the clear liquid output pipe (13) close to the concentration tank body (10), a stirring shaft (14) is arranged on the concentration tank body (10), and the concentration tank body (10) further comprises: A conduction state switching structure, wherein the filtering structure comprises an external output pipe (21) connected to the clear liquid output pipe (13), a plurality of filtering conduits (22) are arranged at the lower end of the external output pipe (21), and the feed liquid is filtered through the filtering conduits (22) and then outputs the clear liquid to the clear liquid output pipe (13) through the external output pipe (21), a plurality of stirring blades (141) are fixedly connected to the stirring shaft (14), and the conduction state switching structure comprises a conduction pipe (31) attached to the lower end of the filtering conduit (22), the conduction pipe (31) is hollow, the opening of the conduction pipe (31) faces the stirring blades (141), and the conduction pipe (31) ) is provided with a row of conducting holes (32) corresponding to the number of the filter ducts (22) at the top thereof; a rotating motor (33) is also installed on the side of the conducting tube (31) close to the concentration tank (10); a multifunctional particle size guide screening component (34) is installed in the conducting tube (31); the conducting tube (31) closes the filter duct (22) in an initial state; when the multifunctional particle size guide screening component (34) detects that the solid particles reach the particle size requirement, the rotating motor (33) drives the conducting tube (31) to rotate, so that the conducting holes (32) are connected to the filter duct (22), and the clear liquid begins to be discharged from the clear liquid output pipe (13).
2. A concentration tank for ternary precursors according to claim 1, characterized in that: A plurality of lower dredging holes are provided in the lower half of the conducting tube (31), and a transverse dredging structure (40) is provided below the conducting tube (31). The transverse dredging structure (40) comprises a movable clamping seat (41) located below the conducting tube (31), and guide holes are provided at the top and bottom of the movable clamping seat (41).
3. A concentration tank for ternary precursors according to claim 2, characterized in that: A slidably connected closing member (42) is provided at the bottom of the movable clamp seat (41). The closing member (42) is used to open and close the guide hole. The closing member (42) is electrically connected to the rotating motor (33). When the rotating motor (33) rotates, the closing member (42) is pushed out synchronously.
4. The concentration tank for ternary precursor according to claim 3, characterized in that: The closing piece (42) comprises a closing piece (421) having the same width as the movable clamping seat (41). The closing piece (421) is provided with rows of holes corresponding to the guide holes. The closing piece (421) is driven by a transverse push rod (422). When the closing piece (421) is pushed out, the rows of holes are staggered with the guide holes.
5. The concentration tank for ternary precursor according to claim 2, characterized in that: A receiving bucket (411) is provided below the movable clamping seat (41), and the receiving bucket (411) extends to the bottom of the concentration tank body (10) through a lower extension pipe (412).
6. The concentration tank for ternary precursor according to claim 5, characterized in that: The containing bucket (411) is provided with a plurality of drainage holes (4111), and the aperture of the drainage holes (4111) is smaller than the required size of the solid particles.
7. A concentration tank for ternary precursors according to claim 6, characterized in that: The length of the stirring blade (141) gradually increases from top to bottom.
8. The concentration tank for ternary precursor according to claim 1, characterized in that: The outer surface of the stirring blade (141) is spot-welded with a plurality of barbed strips (1411), and the barbed strips (1411) point in the direction of the feed pipe (11).
9. The concentration tank for ternary precursor according to claim 1, characterized in that: The filter conduit (22) is filled with microporous filter media.
10. The concentration tank for ternary precursor according to claim 1, characterized in that: A rotating joint (311) is disposed outside the conducting pipe (31), and the rotating joint (311) is communicated with a recoil pipe (312).