Solid-liquid separation device for lepidolite tail mud

By designing a solid-liquid separation device for lithium mica tail sludge including a concentration tank and filtering components, the problems of low efficiency and affecting subsequent processes in the prior art are solved, efficient and rapid solid-liquid separation is achieved, and high-quality raw material supply is ensured.

CN222983931UActive Publication Date: 2025-06-17宜丰九宇锂业有限公司
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Patent Information

Application Number
CN202421723268.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-20
Publication Date
2025-06-17
Estimated Expiration
2034-07-20

AI Technical Summary

Technical Problem

The existing solid-liquid separation technology of lithium mica tail mud is low efficiency, has a long separation time, and occupies a large site, and may affect the subsequent lithium extraction process of tail mud.

Method used

A solid-liquid separation device for lithium mica tail mud is designed, including a skirt and a concentration tank. A partition is provided in the concentration tank to separate the inner cavity into a slurry cavity and a liquid liquid cavity, and the partition is at least partly a filtering member. The tail mud slurry is injected into the slurry chamber through the feed pump. Under the action of pressure, the moisture is quickly discharged to the clear liquid chamber through the filtering parts, and the solid material is trapped in the slurry chamber, achieving efficient solid-liquid separation.

Benefits of technology

The concentration of the tail mud slurry is increased, the separation time is shortened, the space occupation is reduced, and the impact on the subsequent lithium extraction process of the tail mud is avoided, ensuring high-quality raw material supply.

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Abstract

The utility model provides a lepidolite tail mud solid-liquid separation device which comprises a skirt and a thickening tank, a separator is arranged in the thickening tank to divide an inner cavity of the thickening tank into a slurry cavity and a clear liquid cavity, and at least part of the separator is a filtering part; the thickening tank is erected on the skirt, the thickening tank is provided with a slurry inlet and a slurry outlet which are communicated with the slurry cavity, the slurry inlet is communicated with an outlet of the feeding pump, the slurry outlet is located at the bottom of the thickening tank, and the slurry outlet is provided with a discharging valve; and the thickening tank is also provided with a clear liquid outlet communicated with the clear liquid cavity. Tailing slurry is injected into the slurry cavity through the feeding pump, water is discharged to the clear liquid cavity through the filtering part under the pressure effect, solid materials are intercepted in the slurry cavity, and the slurry concentration is effectively improved. Under the condition that the occupied space is smaller, the concentration of the tailing slurry can be rapidly increased to the required concentration, the treatment efficiency is improved, and the stability of the concentration of the tailing slurry is also ensured. No auxiliary agent needs to be added, chemical pollution is avoided, and agent cost is saved.
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Description

Technical Field

[0001] This application relates to the technical field of comprehensive utilization of tailings resources, and particularly to a solid-liquid separation device for spodumene tail mud. Background Art

[0002] The solid-liquid separation technology for spodumene tail mud is an important link in the treatment of tail mud generated during the extraction of metals such as lithium from spodumene ore. Its main purpose is to effectively separate the solid components and liquid components in the tail mud through physical or chemical means, so as to facilitate subsequent resource recovery and environmental protection treatment. The existing solid-liquid separation mainly deposits the tail mud slurry into a thickening tank and adds a flocculant to make it settle naturally, which has the disadvantages of low efficiency, long separation time, large occupied site space, and the flocculant that needs to be used may affect the subsequent lithium extraction from the tail mud. Utility Model Content

[0003] This application provides a solid-liquid separation device for spodumene tail mud that is conducive to improving efficiency and reducing subsequent impacts.

[0004] In a first aspect, an embodiment of this application provides a solid-liquid separation device for spodumene tail mud. The solid-liquid separation device for spodumene tail mud includes a skirt support and a thickening tank. A partition member is provided in the thickening tank to divide the inner cavity of the thickening tank into a slurry chamber and a clear liquid chamber. At least part of the partition member is a filtering component; the thickening tank is erected on the skirt support. The thickening tank has a slurry inlet and a slurry outlet that communicate with the slurry chamber. The slurry inlet is communicated with the outlet of a feed pump. The slurry outlet is located at the bottom of the thickening tank, and a discharge valve is provided at the slurry outlet; the thickening tank also has a clear liquid outlet that communicates with the clear liquid chamber.

[0005] According to the first aspect, in a possible implementation manner, the mesh number of the filtering component is 1800 mesh to 2100 mesh.

[0006] According to the first aspect, in a possible implementation manner, the partition member includes a top plate and the filtering component. A plurality of filtering openings are arranged at intervals on the top plate, and the filtering component is arranged in each of the filtering openings.

[0007] According to the first aspect, in a possible implementation manner, a pipe extending upward is provided at the edge of the filtering opening, and the filtering component is filled in the pipe, and the pipe protrudes from the top plate.

[0008] According to the first aspect, in a possible implementation manner, the solid-liquid separation device for spodumene tail mud further includes a clear liquid pipe. The first end of the clear liquid pipe is arranged in the clear liquid chamber, and the height of the first end of the clear liquid pipe is lower than the height of the pipe; the second end of the clear liquid pipe passes through the thickening tank to form the clear liquid outlet.

[0009] According to a first aspect, in a possible implementation manner, the lepidolite tail mud solid-liquid separation device further includes a cleaning component for cleaning the filtering component.

[0010] According to a first aspect, in a possible implementation manner, the cleaning component includes a cleaning brush and a driving member. The driving member is connected to the top plate, and the output end of the driving member is connected to the cleaning brush. The driving member drives the cleaning brush to rotate to brush the filtering component.

[0011] According to a first aspect, in a possible implementation manner, the thickening tank further includes a detection channel communicating with the slurry chamber, and a pressure sensor is provided in the detection channel.

[0012] According to a first aspect, in a possible implementation manner, an oscillation generator is further provided in the slurry chamber, and the oscillation generator generates oscillation waves towards the bottom of the slurry chamber.

[0013] According to a first aspect, in a possible implementation manner, the discharge valve is a Y-shaped slurry valve.

[0014] For the lepidolite tail mud solid-liquid separation device provided in this application, the tail mud slurry to be thickened is pumped into the slurry chamber of the thickening tank by a feed pump. After pressurization, the filtrate is discharged from above into the clear liquid chamber; the solid materials are blocked by the filtering component and remain in the slurry chamber. After reaching a certain amount, the discharge valve is opened for discharging, and they enter the slurry chamber to prepare for the next process. This application uses a feed pump to inject the tail mud slurry into the slurry chamber. Under the action of pressure, the water quickly discharges through the filtering component into the clear liquid chamber, while the solid materials are intercepted in the slurry chamber, effectively increasing the slurry concentration. With less space occupied, the concentration of the tail mud can be increased to the required concentration faster. The entire treatment process can be cycled, which not only improves the treatment efficiency but also ensures the stability of the tail mud slurry concentration, providing high-quality raw materials for subsequent processes. And no auxiliary chemicals need to be added, avoiding chemical pollution and saving chemical costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a schematic structural diagram of a solid-liquid separation device of an embodiment;

[0017] Figure 2 is a schematic structural diagram of the inside of the clear liquid chamber of an embodiment.

[0018] Reference numerals:

[0019] 100, solid-liquid separation device; 10, skirt support; 20, thickening tank; 21, partition member; 211, top plate; 212, filtering member; 213, pipe; 22, slurry chamber; 23, clear liquid chamber; 24, slurry inlet; 25, slurry outlet; 26, detection channel; 27, clear liquid pipe; 271, clear liquid outlet; 30, feed pump; 40, discharge valve; 51, pressure sensor; 60, cleaning assembly; 61, driving member; 62, cleaning brush. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0022] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the present application in the specification are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more of the related listed items.

[0023] Next, some embodiments of the present application will be described in detail in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0024] Please refer to Figure 1 and Figure 2, this application provides a solid-liquid separation device for lepidolite tail mud (hereinafter referred to as the solid-liquid separation device 100). In one embodiment, the solid-liquid separation device 100 includes a skirt support 10 and a thickening tank 20 mounted on the skirt support 10. A partition member 21 is provided in the thickening tank 20 to divide the inner cavity of the thickening tank 20 into a slurry chamber 22 and a clear liquid chamber 23. At least part of the partition member 21 is a filtering member 212; the thickening tank 20 has a slurry inlet 24 and a slurry outlet 25 communicating with the slurry chamber 22. The slurry inlet 24 is communicated with the outlet of a feed pump 30. The slurry outlet 25 is located at the bottom of the thickening tank 20, and a discharge valve 40 is provided at the slurry outlet 25; the thickening tank 20 also has a clear liquid outlet 271 communicating with the clear liquid chamber 23.

[0025] In this embodiment, the skirt support 10 is an installation component, which realizes the installation and fixation of the thickening tank 20 and facilitates the fixation of the entire device at a specified position. The tail mud slurry to be thickened is pumped into the slurry chamber 22 of the thickening tank 20 by the feed pump 30. After pressurization, the filtrate is discharged from above into the clear liquid chamber 23; the solid materials are blocked by the filtering member 212 and remain in the slurry chamber 22. After reaching a certain amount, the discharge valve 40 is opened for discharging, and the materials enter the slurry chamber 22 to prepare for the next process. This application uses the feed pump 30 to inject the tail mud slurry into the slurry chamber 22. Under the action of pressure, the moisture quickly drains through the filtering member 212 into the clear liquid chamber 23, while the solid materials are intercepted in the slurry chamber 22, effectively increasing the concentration of the tail mud slurry. With less space occupied, the concentration of the tail mud can be increased to the required concentration faster. The entire treatment process can be cycled, which not only improves the treatment efficiency but also ensures the stability of the tail mud slurry concentration, providing high-quality raw materials for subsequent processes. And no auxiliary chemicals need to be added, avoiding chemical pollution and saving chemical costs.

[0026] Specifically, the tail slurry to be thickened is pumped into the slurry chamber 22 of the thickening tank 20 by the feed pump 30 through the feed port 24. At this time, the pressure in the slurry chamber 22 begins to gradually increase. As the pressure in the slurry chamber 22 increases, the filtrate in the slurry (i.e., the clear liquid part) begins to penetrate into the clear liquid chamber 23 through the filtering components 212 (such as filter screens, filter cloths, etc.). These filtering components 212 have sufficient porosity to allow the liquid to pass through while blocking solid particles. After the filtrate accumulates in the clear liquid chamber 23, it is discharged through the clear liquid outlet 271 and collected in the clear liquid chamber 23 for subsequent treatment or reuse. At the same time, under the blockage of the filtering components 212, the material particles to be thickened (such as solid particles, fibers, etc.) are intercepted in the slurry chamber 22, thus realizing solid-liquid separation. As the solid-liquid separation continues, the concentration of the material in the slurry chamber 22 gradually increases. When the concentration of the material in the slurry chamber 22 reaches the set value (this set value is determined according to the specific requirements of production and processing), the opening of the discharge valve 40 allows the concentrated material in the slurry chamber 22 to be discharged through the discharge port 25 and collected in the slurry chamber 22. The material in the slurry chamber 22 will be subjected to the next step of treatment or processing. Thus, a working cycle process is completed, and after the discharging is completed, the discharge valve 40 is closed to enter the next working cycle.

[0027] In this application, the working parameters can be detected by setting sensors, timers, etc., so as to automatically discharge the slurry after it reaches the required concentration and start the next working cycle, improving the automation degree of the solid-liquid separation device 100.

[0028] The entire working process of the solid-liquid separation device 100 is divided into four stages: feeding, pressurizing, concentrating, and discharging, achieving the effect of thickening the thin slurry. For example, the duration of each working stage can be controlled by a timer. For example, a fixed filtering time can be set to allow the slurry to be fully filtered in the slurry chamber 22 before discharging. The timer can also be used in cooperation with the sensor. When the sensor detects a specific condition (such as the concentration reaching the preset value), the timer starts timing, and the discharging action is automatically triggered after reaching the set time. The sensor can include a concentration sensor, which is installed in the slurry chamber 22 to monitor the concentration of the slurry in real time. When the concentration reaches the preset value, the discharge valve 40 is opened. The sensor can include a pressure sensor 51, which can be installed in the slurry chamber 22 or on the relevant pipeline 213 to monitor the pressure change in the slurry chamber 22. The pressure data can be used to judge the filtering effect and working state. The sensor can also include a liquid level sensor, which is used to monitor the liquid level changes in the slurry chamber 22 and the clear liquid chamber 23 to ensure that the chambers do not overflow or run dry during the working process.

[0029] In one embodiment, the timer measures the slurry feeding time for a single cycle. The feeding pump 30 continuously pumps the lithium mica tailing slurry into the tank through the slurry inlet until the set slurry feeding time of 600 s is reached. It is also possible to detect the pressure in the slurry chamber 22 by setting a pressure sensor 51 in the slurry chamber 22, and continue to pump the dilute slurry into the tank through the slurry feeding pump until a certain pressure value (1.8 kg to 2.1 kg) is reached. With the intermittent feeding of the slurry feeding pump and the assistance of the check valve, the pressure in the tank always remains at this pressure parameter. Under the action of the pressure difference between the slurry chamber and the clear liquid chamber 23, part of the water in the slurry chamber is gradually filtered out and separated, so as to achieve the purpose of concentration. As the concentration process continues, the material concentration in the thickening tank 20 continuously increases. The concentration duration can be set to 100 s, that is, when the cumulative duration of a single cycle reaches 700 s of working time, the system automatically opens the discharge valve 40 for discharging, and closes the discharge valve 40 after the set discharge time of 60 s arrives.

[0030] It can be understood that the above specific parameter values are only examples, and the present application does not limit this. In actual applications, it needs to be set according to the volume of the slurry chamber 22, the working efficiency of the feeding pump 30, the opening degree of the discharge valve 40, etc. The length of the slurry feeding time should be based on the complete filling of the slurry chamber 22 with the dilute slurry. The setting of the concentration duration depends on the required slurry concentration. The setting of the discharge time should be based on the complete discharge of the concentrated tailing in the slurry chamber 22. The parameter setting of the solid-liquid separation device 100 in actual applications needs to be flexibly adjusted and optimized according to specific situations. Through reasonable parameter setting and dynamic operation process adjustment, the high-efficiency and stable operation of the device can be ensured, and the expected concentration effect can be achieved.

[0031] Among them, the pressure sensor 51 can be set at the top of the slurry chamber 22; or a detection channel 26 communicating with the slurry chamber 22 is set, and the pressure sensor 51 is set in the detection channel 26; to avoid the interference of tailing sedimentation on the detection result, so that the pressure sensor 51 can accurately reflect the actual pressure situation in the slurry chamber 22, and it can also avoid the influence of tailing sedimentation on the detection result of the pressure sensor 51, thus ensuring the concentration effect.

[0032] The mesh number of the filtering component 212 is 1800 to 2100 meshes. Due to the extremely small holes, such a filtering component 212 can intercept the vast majority of tiny particulate matters and impurities, ensuring the high purity of the filtered liquid. In order to achieve the filtering accuracy, the material of the filtering component 212 can be selected from stainless steel, ceramics, polymer materials, etc.

[0033] Since the holes of the high mesh filter component 212 are extremely small, they are easily clogged. The solid-liquid separation device 100 also includes a cleaning component 60, which is used to clean the filter component 212. The cleaning component 60 regularly cleans the filter component to reduce the probability of clogging and damage of the filter component 212 and maintain its filtering efficiency.

[0034] In the first example, the cleaning assembly 60 may include a cleaning brush 62 and a driving member 61, wherein the driving member 61 is connected to the top plate 211, and the output end of the driving member 61 is connected to the cleaning brush 62. The cleaning assembly 60 in this example may be applicable to the sheet-like filter component 212, and the driving member 61 drives the cleaning brush 62 to rotate to scrub the filter component 212, and the attached matter may be removed by scraping.

[0035] The cleaning brush 62 is usually made of wear-resistant and corrosion-resistant materials, and the bristles are fine and soft to ensure that the filter component 212 is not damaged when scraping. The shape and size of the cleaning brush 62 must match the filter component 212 to ensure full coverage and effective cleaning; the driving member 61 can be a motor.

[0036] In the second example, the cleaning component 60 can also be a flushing component, which provides a flushing agent and a certain pressure to the filter component 212, so that the liquid flows through the filter component 212 to the slurry chamber 22, and the attachments attached to the pores of the filter component 212 are driven. The flushing liquid can be clean water, a chemical cleaning agent, etc., and is selected according to the material of the filter component 212 and the properties of the attachments. In a preferred embodiment, the flushing liquid is clean water, and the flushing liquid can be accumulated in the slurry chamber 22 and concentrated with the next cycle to avoid the use of chemical agents to contaminate the slurry.

[0037] In practical applications, the first example and the second example mentioned above can be used alone or in combination with each other.

[0038] See also Figure 1 and Figure 2 The separator 21 includes a top plate 211 and a filter component 212. A plurality of filter ports are arranged at intervals on the top plate 211, and a filter component 212 is arranged in each filter port. The top plate 211 is the main supporting structure of the separator 21. It is located above the device and provides a mounting platform for the filter component 212. A plurality of filter ports are arranged at intervals on the top plate 211. The number and distribution of these filter ports are designed according to actual needs to ensure that the tail mud slurry can be treated uniformly and efficiently. The shape and size of the filter port must match the filter component 212 for easy installation and sealing.

[0039] When the tail mud slurry enters the device, it first comes into contact with the top plate 211. Under the action of gravity and pressure, the slurry flows through the filter openings on the top plate 211 towards the filter component 212. The holes in the filter component 212 intercept the solid particles in the slurry, allowing only the liquid part to pass through and continue to flow downward. The solid particles are retained on the surface or pores of the filter component 212, forming a solid phase layer. As time goes by, the solid phase layer will gradually thicken, and the filtration resistance will increase accordingly. At this time, it is necessary to start the cleaning component 60 to clean the filter component 212 to remove the solid phase layer and restore the filtration efficiency.

[0040] Based on the above embodiment, a pipe 213 extending upward is provided at the edge of the filter opening. The filter component 212 is filled in the pipe 213, and the pipe 213 protrudes from the top plate 211. The upward-extending pipe 213 provides an additional sealing boundary for the filter component 212. When the filter component 212 is filled and fixed in the pipe 213, the sealing between it and the pipe 213 and the top plate 211 can be further strengthened through sealing materials (such as rubber gaskets, sealants, etc.) to prevent the tail mud slurry from leaking from the edge of the filter opening. The design that the pipe 213 protrudes from the top plate 211 can protect the filter component 212 from external impacts and damages. During the operation of the device, there may be adverse factors such as vibration and collision, and the protruding pipe 213 can play a certain buffering role to protect the integrity and stability of the filter component 212.

[0041] The solid-liquid separation device 100 further includes a clear liquid pipe 27. The first end of the clear liquid pipe 27 is arranged in the clear liquid chamber 23, and the height of the first end of the clear liquid pipe 27 is lower than the height of the pipe 213. The second end of the clear liquid pipe 27 passes through the thickening tank 20 to form a clear liquid outlet 271. When the tail mud slurry undergoes solid-liquid separation through the filter component 212, the solid particles are retained on the filter component 212, while the clear liquid flows into the clear liquid chamber 23 through the pores of the filter component 212. Due to the fact that the height of the first end of the clear liquid pipe 27 is lower than the height of the pipe 213, the clear liquid naturally flows into the clear liquid pipe 27 under the action of gravity. As the clear liquid accumulates continuously until it submerges the first end of the clear liquid pipe 27, the clear liquid flows along the clear liquid pipe 27 towards the second end and finally discharges from the solid-liquid separation device through the clear liquid outlet 271.

[0042] During this process, the existence of the clear liquid chamber 23 can play a certain buffering role. The clear liquid filtered by the filter component 212 is concentrated in the clear liquid chamber 23 through the pipe 213.

[0043] The height of the first end of the clear liquid pipe 27 is designed to be lower than the height of the pipe 213, which can ensure that the filtered clear liquid can flow smoothly into the clear liquid pipe 27 under the action of gravity. This can avoid the phenomenon that the clear liquid cannot completely flow in or even flows back due to the too high height of the first end of the clear liquid pipe 27.

[0044] An oscillation generator (not shown) is also provided in the slurry chamber 22, and the oscillation generator generates oscillation waves toward the bottom of the slurry chamber 22. When the oscillation waves propagate in the slurry chamber 22, the solid particles in the tail mud slurry are periodically disturbed. This disturbance causes collision and aggregation between particles to form larger particle clusters or flocs. These larger particle clusters or flocs have a larger effective sedimentation area during the sedimentation process, thereby accelerating the sedimentation rate. In some cases, there may be electrostatic repulsion between the solid particles in the tail mud slurry, making it difficult for them to aggregate and settle. The action of the oscillation wave can destroy this electrostatic repulsion, making it easier for the particles to approach each other and gather together. The oscillation wave can also improve the flow state in the slurry chamber 22, making the slurry more uniform and stable. This helps to reduce local eddies and dead zones and improve the sedimentation efficiency of the entire slurry chamber 22.

[0045] The power and frequency of the oscillation generator need to be determined according to the specific tailings slurry characteristics and processing volume. Too high power and frequency may cause excessive disturbance of the slurry, which will reduce the sedimentation efficiency; while too low power and frequency may not achieve the desired effect. The oscillation generator should emit oscillation waves toward the bottom of the slurry chamber 22 to ensure that the entire slurry chamber 22 is evenly disturbed. At the same time, the emission angle also needs to be adjusted according to the shape and size of the slurry chamber 22 to achieve the best disturbance effect.

[0046] The oscillator generator may be a crystal oscillator, an LC oscillator, an RC oscillator, a voltage-controlled oscillator, or a frequency synthesizer. A pulse generator may also be used as an oscillation source in some cases. A pulse generator can generate a series of repeated pulse signals, which may be regarded as a special form of oscillation signal; this application does not limit this.

[0047] The discharge valve 40 can adopt a Y-type slurry valve. The valve body of the Y-type slurry valve is designed to be V-shaped, and the valve disc is convex. This design helps to eliminate the residual phenomenon of process medium at the outlet of the container, and provides two working modes of the valve disc: lifting and lowering. The inner cavity of the valve body is equipped with a scouring-resistant and corrosion-resistant sealing ring to protect the valve body from being scoured and corroded by the medium at the moment of opening. The specific structure of the discharge valve 40 is not described in detail in this application.

[0048] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0049] The above-disclosed is only a preferred embodiment of the present application. Of course, it cannot be used to limit the scope of rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A lithium mica tail mud solid-liquid separation device, characterized in that: The lithium mica tail mud solid-liquid separation device comprises: Skirt seat; A thickening tank, wherein a partition is provided inside the thickening tank to divide the inner cavity of the thickening tank into a slurry cavity and a clear liquid cavity, and at least a part of the partition is a filtering component; the thickening tank is mounted on the skirt seat, and the thickening tank has a slurry inlet and a slurry outlet communicated with the slurry cavity, the slurry inlet is communicated with the outlet of a feed pump, the slurry outlet is located at the bottom of the thickening tank, and the slurry outlet is provided with a discharge valve; the thickening tank also has a clear liquid outlet communicated with the clear liquid cavity.

2. The lithium mica tail mud solid-liquid separation device according to claim 1, characterized in that: The mesh number of the filter component is 1800 to 2100 meshes.

3. The lithium mica tail mud solid-liquid separation device according to claim 2, characterized in that: The partition comprises a top plate and the filter component. A plurality of filter ports are arranged at intervals on the top plate, and the filter component is arranged in each of the filter ports.

4. The lithium mica tail mud solid-liquid separation device according to claim 3, characterized in that: An upwardly extending pipe is provided at the edge of the filter port, the filter component is filled in the pipe, and the pipe protrudes from the top plate.

5. The lithium mica tail mud solid-liquid separation device according to claim 4, characterized in that: The lithium mica tail mud solid-liquid separation device also includes a clear liquid pipe, the first end of which is arranged in the clear liquid cavity, and the height of the first end of the clear liquid pipe is lower than the height of the pipeline; the second end of the clear liquid pipe passes through the concentration tank to form the clear liquid outlet.

6. The lithium mica tail mud solid-liquid separation device according to claim 3, characterized in that: The lithium mica tail mud solid-liquid separation device also includes a cleaning component, and the cleaning component is used to clean the filter component.

7. The lithium mica tail mud solid-liquid separation device according to claim 6, characterized in that: The cleaning assembly includes a cleaning brush and a driving member, wherein the driving member is connected to the top plate, an output end of the driving member is connected to the cleaning brush, and the driving member drives the cleaning brush to rotate to brush the filter component.

8. The lithium mica tail mud solid-liquid separation device according to any one of claims 1 to 7, characterized in that: The concentration tank further comprises a detection channel communicated with the slurry chamber, and a pressure sensor is arranged in the detection channel.

9. The lepidolite tail mud solid-liquid separation device according to any one of claims 1 to 7, characterized in that: An oscillation generator is also arranged in the slurry chamber, and the oscillation generator generates oscillation waves toward the bottom of the slurry chamber.

10. The lepidolite tail mud solid-liquid separation device according to any one of claims 1 to 7, characterized in that: The discharge valve is a Y-type slurry valve.