Lithium precipitation mother liquor conveying pipeline and system

Abstract

The utility model provides a lithium precipitation mother liquor conveying pipeline and a lithium precipitation mother liquor conveying system. The lithium precipitation mother liquor conveying pipeline and system comprise a main body (1) and a pipe cover (2), the main body (1) is sleeved with the pipe cover (2), the pipe cover (2) comprises a base material layer (21) and a buffer layer (23), the base material layer (21) is arranged outside the main body (1), and the buffer layer (23) is arranged outside the base material layer (21). According to the lithium precipitation mother liquor conveying pipeline and the lithium precipitation mother liquor conveying system provided by the utility model, the stability and the safety of the pipeline system are improved by arranging the pipe cover structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium carbonate production material conveying technical field, specifically, relate to a lithium precipitation mother liquor conveying pipeline and system. BACKGROUND

[0002] In the production process of lithium carbonate, the delivery of lithium precipitation mother liquor is a key link to ensure continuous and efficient production. The pipeline used in the traditional conveying pipeline is usually made of stainless steel, which has significant defects in physical protection. In the process of handling and installation, the outer wall of the pipeline is easily damaged, especially when it is collided or bumped. Once the outer wall of the pipeline is damaged, not only the mechanical strength of the pipeline will be reduced, but also internal fluid leakage may occur, affecting production safety and efficiency. In addition, the damage of the pipeline will also accelerate the corrosion and wear of the inside of the pipeline, resulting in shorter service life of the pipeline, increased frequency of maintenance and replacement, and thus higher production cost.

[0003] In the prior art, there is often a lack of effective solutions for the protection of the outer wall of the pipeline. Although a thicker stainless steel material can be used, this method significantly increases the weight of the pipeline, making it more laborious to handle and install the pipeline, increasing the labor intensity and safety hazards of the operators, and may also cause additional load on the support structure and fixing points of the pipeline, thereby affecting the stability and safety of the entire pipeline system. SUMMARY

[0004] The main purpose of the present utility model is to provide a lithium precipitation mother liquor conveying pipeline and system, which can effectively prevent the outer wall of the conveying pipeline from being damaged by collision or bumping, and improve the stability and safety of the pipeline system.

[0005] In order to achieve the above purpose, according to one aspect of the present utility model, a lithium precipitation mother liquor conveying pipeline is provided, which comprises a main body and a pipe cover, the pipe cover is sleeved on the main body, the pipe cover comprises a base material layer and a buffer layer, the base material layer is arranged outside the main body, and the buffer layer is arranged outside the base material layer.

[0006] Further, a wear-resistant layer is further arranged outside the buffer layer.

[0007] Further, a reinforcing rib is further arranged between the main body and the pipe cover, the reinforcing rib extends along the axial direction of the main body; and / or, the buffer layer is made of elastic material or flexible material.

[0008] Further, the cross-sectional shape of the reinforcing rib is circular, elliptical or polygonal, a plurality of reinforcing ribs are arranged in a circumferential direction of the main body at intervals, and a buffer gap is formed between adjacent reinforcing ribs.

[0009] Further, the main body is a perforated steel belt composite pipeline.

[0010] According to another aspect of the utility model, a kind of lithium precipitation mother liquor conveying system is provided, including the lithium precipitation mother liquor conveying pipeline of above.

[0011] Further, the lithium precipitation mother liquor conveying system includes a main pipe and a branch pipe, the main pipe is in communication with the branch pipe, a pipe valve is provided on the branch pipe, one end of the pipe valve is connected to a crystallizer, and the other end is connected to the branch pipe;And / or, the pipe valve is a pinch valve, and the sleeve of the pinch valve is made of a high-temperature-resistant and corrosion-resistant material.

[0012] Further, the sleeve is made of homopolypropylene, polytetrafluoroethylene, polyvinylidene fluoride or polyurethane.

[0013] Further, the lithium precipitation mother liquor conveying system further includes a vibration device, and the vibration device is arranged on the lithium precipitation mother liquor conveying pipeline.

[0014] Further, the lithium precipitation mother liquor conveying system further includes a main pipe and a knocking portion, and the knocking portion is arranged on the main pipe;Alternatively, the lithium precipitation mother liquor conveying system further includes a driving device and a knocking portion, the driving device is drivingly connected to the knocking portion, and the driving device drives the knocking portion to knock the lithium precipitation mother liquor conveying pipeline.

[0015] The technical scheme of the utility model has the advantages that the main body is the main channel for conveying lithium precipitation mother liquor, the sleeve serves as an outer protective cover, and mainly provides physical protection, enhances the mechanical strength and durability of the pipeline, and reduces external damage to the pipeline during transportation, installation and daily maintenance operation.The base material layer serves as the bottom structure of the sleeve, and provides sufficient adhesion and support between the sleeve and the main body.The buffer layer mainly absorbs external impact force and reduces direct damage of the impact to the main body of the pipeline.The lithium precipitation mother liquor conveying pipeline provided by the utility model can enhance the mechanical strength and durability of the pipeline, reduce damage caused by external impact during transportation, installation and daily operation, and thus improve the stability and safety of the pipeline system. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of the utility model form a part of the utility model and serve to provide further understanding of the utility model, and the illustrative embodiments of the utility model and their descriptions serve to explain the utility model, and do not constitute an improper limitation on the utility model.In the drawings:

[0017] Figure 1 The overall structure schematic diagram of the lithium precipitation mother liquor conveying pipeline system of the embodiment of the utility model is shown;

[0018] Figure 2 The structure schematic diagram of the pipe valve of the lithium precipitation mother liquor conveying pipeline system of the embodiment of the utility model is shown;

[0019] Figure 3The structure schematic view of the lithium precipitation mother liquor conveying pipeline of the embodiment of the utility model is shown.

[0020] Figure 4 The structure schematic view of the pipe cover of the lithium precipitation mother liquor conveying pipeline of the embodiment of the utility model is shown.

[0021] Among them, the above-mentioned drawing includes the following sign:

[0022] 1, main body; 2, pipe cover; 21, base material layer; 22, wear-resistant layer; 23, buffer layer; 3, reinforcing rib; 4, main pipe; 5, branch pipe; 6, pinch valve; 7, pipe sleeve; 81, knocking part; 82, connecting part; 9, tool box. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0024] Combined with the drawings shown, Figures 1 to 4 The utility model provides a lithium precipitation mother liquor conveying pipeline, including main body 1 and pipe cover 2, pipe cover 2 is set on main body 1, main body 1 is composite material pipeline, pipe cover 2 includes base material layer 21 and buffer layer 23, base material layer 21 is set outside main body 1, and buffer layer 23 is set outside base material layer 21.

[0025] In the above technical scheme, main body 1 is the main channel of conveying lithium precipitation mother liquor, and pipe cover 2 is used as the outer protective cover, which mainly provides physical protection, enhances the mechanical strength and durability of the pipeline, and reduces the damage of external force to the pipeline during handling, installation and daily maintenance operation.Base material layer 21 is used as the bottom structure of pipe cover 2, which provides sufficient adhesion and support between pipe cover 2 and main body 1.Buffer layer 23 is mainly used to absorb the impact force of the outside world and reduce the direct damage of impact to main body 1 of the pipeline.The lithium precipitation mother liquor conveying pipeline provided by the utility model can enhance the mechanical strength and durability of the pipeline, reduce the damage caused by external impact during handling, installation and daily operation, so as to realize the effect of improving the stability and safety of the pipeline system.

[0026] In one embodiment of the utility model, the wear-resistant layer 22 is further arranged outside the buffer layer 23.

[0027] In the above technical solution, the wear-resistant layer 22 is the outermost layer of the pipe cover 2, directly contacting the external environment, and its main function is to resist wear and friction from the outside. The wear-resistant layer 22 is usually made of materials with high wear resistance, such as polyvinyl chloride (PVC) or other special engineering plastics, to ensure that the pipe cover can maintain its integrity when facing harsh environments or heavy friction, thereby protecting the main body 1 from damage caused by external wear and tear. At the same time, the wear-resistant layer 22 can also withstand and distribute a portion of the direct impact from the outside, relieving the pressure on the shock-absorbing layer 23 to absorb all the impact force.

[0028] In one embodiment of the present application, the main body 1 and the pipe cover 2 are further provided with a reinforcing rib 3 extending along the axial direction of the main body 1.

[0029] In the above technical solution, during the transportation of the lithium precipitation mother liquor, the pipe may be subjected to internal fluid pressure and external physical forces such as impact, heavy pressure, etc. The reinforcing rib 3 extending along the axial direction of the pipe can effectively disperse and resist these forces, further protecting the pipe from deformation or damage and achieving the effect of increasing the strength and stability of the overall structure of the pipe.

[0030] In one embodiment of the present application, the shock-absorbing layer 23 is made of elastic or flexible material.

[0031] In the above technical solution, the shock-absorbing layer 23 is made of elastic material such as rubber or flexible material such as gel, which can more effectively absorb external impact. When the impact force is transmitted layer by layer to the shock-absorbing layer 23, the elastic or flexible material further absorbs the impact force through deformation, reducing the direct effect of the impact force on the pipe main body 1 and preventing the pipe from deforming or being damaged due to impact.

[0032] In one embodiment of the present application, the cross-sectional shape of the reinforcing rib 3 is circular, elliptical or polygonal, and a plurality of reinforcing ribs 3 are arranged circumferentially along the main body 1 at intervals, forming a buffer gap between adjacent reinforcing ribs 3.

[0033] In the above technical solution, the cross-sectional shape of the reinforcing rib 3 is designed as a circle, an ellipse or a polygon. These shapes of the reinforcing rib 3 generally have high bending and compression strength, and can effectively disperse and resist external force on the pipeline body. The reinforcing ribs 3 arranged at intervals can reduce the amount of material used while maintaining sufficient strength, thereby reducing the weight of the pipeline and reducing production costs. The buffer gap formed between adjacent reinforcing ribs 3 can play a role in vibration isolation and shock absorption, reducing noise and potential damage caused by vibration during transportation or operation of the pipeline. The combination of the reinforcing rib 3 with the pipeline body and the pipe cover can enhance the protective effect of the pipe cover on the pipeline body, especially when the pipeline is subjected to external impact. The reinforcing rib 3 can effectively disperse the impact force and reduce direct damage to the pipeline body. At the same time, the buffer layer between the reinforcing rib 3 and the pipe cover can further absorb the remaining impact energy, providing double protection.

[0034] In one embodiment of the present application, the main body 1 is a hole net steel belt composite pipeline.

[0035] In the above technical solution, compared with traditional stainless steel and other metal pipelines, the hole net steel belt composite pipeline can significantly reduce the weight of the pipeline under the same specification, reducing the difficulty of carrying, installation and maintenance, thereby reducing the labor intensity and safety hazards of the operating personnel during installation and maintenance. At the same time, the lighter pipeline reduces the pressure and burden of the supporting structure, improving the stability and safety of the pipeline system. The inner lining of the hole net steel belt composite pipeline is usually made of corrosion-resistant materials such as plastic, rubber or epoxy resin, which can effectively resist the corrosion of chemical substances in the lithium sink mother liquor on the inner wall of the pipeline, prolong the service life of the pipeline and reduce maintenance costs. The hole net steel belt as a reinforcing framework of the composite pipeline can provide additional rigidity and stability to prevent deformation or damage of the pipeline under internal fluid pressure or external physical action. Compared with stainless steel pipelines, the hole net steel belt composite pipeline can be connected between pipelines by hot melt welding, and the weld is more flat. Therefore, the inner surface of the hole net steel belt composite pipeline is smoother, while the stainless steel pipeline has a protrusion at the weld due to the accumulation of welding material, which makes the material more likely to crystallize and block at this point. At the same time, the protrusion at the weld increases the frictional resistance of the fluid passing through the pipeline, reducing the efficiency of fluid delivery. Therefore, using the hole net steel belt composite pipeline as a delivery pipeline can avoid material deposition and crystallization in the pipeline, reduce maintenance frequency and thus reduce production costs. In addition, using the hole net steel belt composite pipeline as a delivery pipeline can also reduce frictional loss during fluid delivery, further improving the efficiency of fluid delivery.

[0036] For reference Figures 1 to 4 The utility model also provides a lithium sink mother liquor delivery system which comprises the lithium sink mother liquor delivery pipeline of the above embodiment.

[0037] In the technical scheme, the lithium precipitation mother liquor conveying system adopts the lithium precipitation mother liquor conveying pipeline in the above embodiment, so that the crystallization plugging of the lithium precipitation mother liquor in the pipeline is reduced, the maintenance frequency of the lithium precipitation mother liquor conveying system is greatly reduced, the maintenance difficulty of the lithium precipitation mother liquor conveying system is greatly reduced due to the light lithium precipitation mother liquor conveying pipeline, and the labor burden of the operator is reduced, and the maintenance cost is greatly reduced.

[0038] In one embodiment of the utility model, the lithium precipitation mother liquor conveying system comprises a main pipe 4 and a branch pipe 5, the main pipe 4 is communicated with the branch pipe 5, a pipe valve is arranged on the branch pipe 5, one end of the pipe valve is connected with a crystallizer, and the other end is connected with the branch pipe 5.

[0039] In the technical scheme, the pipe valve is arranged on the branch pipe 5 and is used for controlling the flow of fluid in the branch pipe 5, including controlling the opening and closing of the pipeline and adjusting the flow of fluid. The lithium precipitation mother liquor is gathered in the main pipe 4 through the plurality of branch pipes 5 and is conveyed to other process equipment through the main pipe 4.

[0040] In one embodiment of the utility model, the pipe valve is a pinch valve 6, and a pipe sleeve 7 of the pinch valve 6 is made of high-temperature-resistant and corrosion-resistant materials.

[0041] In the technical scheme, the pinch valve 6 controls the flow of fluid by extruding the pipeline, which reduces the wear and damage of the sealing element in the traditional valve, thereby reducing the maintenance cost. In the conveying process of the lithium precipitation mother liquor, the lithium precipitation mother liquor may be in a high-temperature state and contains lithium carbonate and other chemical substances that may be corrosive. Therefore, the pipe sleeve 7 needs to have certain high-temperature resistance and corrosion resistance, thereby prolonging the service life of the pinch valve 6, reducing the leakage and failure risk of the pinch valve 6, and reducing the maintenance and replacement cost of the equipment.

[0042] In one embodiment of the utility model, the pipe sleeve 7 is made of homopolypropylene (PPH), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), or polyurethane (PU).

[0043] In the technical scheme, the above-mentioned materials have good high-temperature resistance, for example, the use temperature range of homopolypropylene (PPH) is-20 DEG C to 110 DEG C, and the use of homopolypropylene (PPH) as the pipe sleeve 7 of the pinch valve 6 can ensure the stability and safety of the pinch valve 6 in the process of conveying high-temperature lithium precipitation mother liquor. At the same time, homopolypropylene (PPH), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), or polyurethane (PU) and other materials can effectively resist the corrosion of these corrosive substances due to their excellent chemical stability. Compared with the traditional rubber sleeve, the use of homopolypropylene (PPH) and other materials as the pipe sleeve of the pinch valve 6 can effectively reduce the damage of the sleeve due to wear and corrosion, thereby prolonging the service life of the pinch valve 6 and reducing the maintenance cost of the pinch valve 6.

[0044] In one embodiment of the utility model, the lithium precipitation mother liquor conveying system further comprises a vibrating device, and the vibrating device is arranged on the lithium precipitation mother liquor conveying pipeline.

[0045] In the above technical solution, the vibrating device can automatically or under manual control make the lithium precipitation mother liquor conveying pipeline vibrate, so that the lithium carbonate crystals deposited on the inner wall of the conveying pipeline are loosened and fall off, thereby avoiding continuous growth of the crystals on the inner wall of the conveying pipeline and causing pipeline blockage.

[0046] In one embodiment of the utility model, the lithium precipitation mother liquor conveying system further comprises a main pipe 4 and a knocking part 81, and the knocking part 81 is arranged on the main pipe 4.

[0047] In the above technical solution, the knocking part 81 is used to automatically and periodically knock or manually knock the conveying pipeline as needed, so that the lithium carbonate crystals are loosened and fall off from the inner wall of the pipeline, thereby avoiding the problem of increased conveying resistance and pipeline blockage caused by continuous growth of the crystals, reducing the frequency of pipeline shutdown cleaning and maintenance, and thus reducing the maintenance cost and economic loss caused by shutdown.

[0048] In one embodiment of the utility model, the main pipe 4 is provided with a connecting part 82, and the knocking part 81 is connected to the main pipe 4 through the connecting part 82, so as to realize connection and fixation of the knocking part 81 and avoid loss or loss of the knocking part 81.

[0049] In one embodiment of the utility model, the lithium precipitation mother liquor conveying system further comprises a driving device and a knocking part 81, and the driving device is drivingly connected with the knocking part 81, and the driving device drives the knocking part 81 to knock the lithium precipitation mother liquor conveying pipeline.

[0050] In the above technical solution, the driving device is used to provide stable and controllable power for the knocking part 81, so that the knocking part 81 can perform a knocking action according to a set frequency, force and mode. The automatic design of the driving device can ensure that the knocking part 81 is automatically started when needed without manual operation, thereby reducing the maintenance cost and labor intensity. The knocking part is a component for removing lithium carbonate crystals deposited on the inner wall of the pipeline. By receiving the power provided by the driving device, the knocking part 81 can produce regular knocking actions, and such physical vibration can break the adhesion between the lithium carbonate crystals and the inner wall of the pipeline, so that the crystals fall off and prevent the pipeline from being blocked.

[0051] In one embodiment, the knocking part 81 is a steel wire black rubber pipe, so as to ensure that when the knocking part 81 is used to knock the lithium precipitation mother liquor conveying pipeline, the lithium carbonate crystals can be effectively removed without damaging the structure of the pipeline.

[0052] In one embodiment, the driving device is an electric motor connected to the knocking part 81 through a cam mechanism, and the electric motor drives the cam mechanism to rotate, thereby driving the knocking part 81 to swing and enabling the knocking part 81 to periodically knock the lithium sinking mother liquor conveying pipeline.

[0053] In one embodiment, the driving device is a hydraulic cylinder or a pneumatic cylinder, and the piston rod of the hydraulic cylinder or the pneumatic cylinder is connected to the knocking part 81, and the reciprocating motion of the piston rod is driven by the hydraulic cylinder or the pneumatic cylinder, thereby driving the knocking part 81 on the piston rod to periodically knock the lithium sinking mother liquor conveying pipeline.

[0054] In one embodiment of the utility model, the base material layer is made of epoxy resin material.

[0055] In the above technical solution, the epoxy resin is relatively hard after curing, has good mechanical strength and toughness, and can provide additional physical protection for the pipeline to prevent damage caused by external collisions. The epoxy resin can withstand high temperature after curing, and is suitable for high temperature environment that may be encountered during lithium sinking mother liquor conveying, to ensure stability and strength under high temperature conditions.

[0056] In one embodiment of the utility model, the wear-resistant layer is made of polyvinyl chloride.

[0057] In the above technical solution, polyvinyl chloride (PVC) has good wear resistance, and when the surface of the conveying pipeline is in contact or collision with other objects during handling, installation or production environment, the use of polyvinyl chloride to form a wear-resistant layer can reduce the wear of the pipeline surface and maintain the integrity of the pipeline. Compared with some high-performance engineering plastics or metal materials, PVC has lower cost and is easy to process and form. In the case of needing a wear-resistant layer but not requiring extreme performance, using PVC as a wear-resistant layer can effectively reduce the cost.

[0058] In one embodiment of the utility model, the lithium sinking mother liquor conveying system further comprises a tool box 9, and the tool box 9 is connected to the main pipe 4 through a connecting column.

[0059] In the above technical solution, the tool box 9 usually contains tools, spare parts and safety equipment required for system maintenance and emergency operation. It is designed to be fixed near the pipeline system, so that maintenance personnel can quickly obtain the required tools and perform pipeline maintenance or handle emergencies, thereby improving maintenance efficiency and enhancing safety.

[0060] In one embodiment of the utility model, the lithium sinking mother liquor conveying system further comprises a water pump, and the water pump adopts an open impeller. Compared with the traditional closed impeller, the open impeller can break up smaller materials in the lithium sinking mother liquor, avoiding clogging of the impeller, thereby reducing the frequency of shutdown maintenance and reducing maintenance cost.

[0061] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: the main body 1 is the main channel for conveying the lithium precipitation mother liquor, the pipe cover 2 is used as the outer protective cover, which mainly provides physical protection, reduces the external force damage of the pipeline during transportation, installation and daily maintenance operation, and enhances the mechanical strength and durability of the pipeline. The base material layer 21 is used as the bottom structure of the pipe cover 2, which is made of materials such as epoxy resin, so as to provide sufficient adhesion and support between the pipe cover 2 and the main body 1, and make the base material layer 21 also have certain physical protection and chemical corrosion resistance. The buffer layer 23 can be made of elastic or flexible materials, which is mainly used to absorb the impact force from the outside and reduce the direct damage of the impact to the pipeline main body. The main body 1 is a composite material pipeline, such as a hole net steel belt pipeline. Compared with the traditional stainless steel conveying pipeline, the composite material pipeline is used as the main channel for conveying the lithium precipitation mother liquor under the condition of the same pipe wall thickness, on the one hand, the welding part of the composite material pipeline is smoother, so that the material flow is smoother, and the probability of pipeline internal crystallization blockage is reduced, on the other hand, the composite material pipeline has lighter weight, which is convenient for the operator to install, maintain and replace, reduces the labor intensity of the operator, and ensures the work safety of the operator. The lithium precipitation mother liquor conveying pipeline provided by the utility model is matched by the composite material pipeline main body and the pipe cover structure, which not only significantly reduces the weight of the conveying pipeline, but also reduces the external force damage of the pipeline during transportation, installation and daily operation, enhances the mechanical strength and durability of the pipeline, thereby realizing the effects of reducing the labor intensity and safety hidden danger of the operator during installation and maintenance, and improving the stability and safety of the pipeline system.

[0062] Obviously, the above-described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the utility model.

[0063] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or their combination.

[0064] The above only describes the preferred embodiments 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 changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A lithium sink solution delivery conduit, characterized by, The lithium precipitation mother liquor conveying pipeline comprises a main body (1) and a pipe cover (2), the pipe cover (2) is sleeved on the main body (1), the pipe cover (2) comprises a substrate layer (21) and a buffer layer (23), the substrate layer (21) is arranged outside the main body (1), and the buffer layer (23) is arranged outside the substrate layer (21); The buffer layer (23) is further provided with a wear-resistant layer (22) outside. The buffer layer (23) is made of elastic material or flexible material.

2. The lithium sink liquor transfer line of claim 1, wherein, The main body (1) and the pipe cover (2) are further provided with a reinforcing rib (3), and the reinforcing rib (3) extends along the axial direction of the main body (1).

3. The lithium sink liquor transfer line of claim 2, wherein, The cross-sectional shape of the reinforcing rib is circular, oval or polygonal, a plurality of reinforcing ribs (3) are arranged in a circumferential direction of the main body (1) at intervals, and a buffer gap is formed between adjacent reinforcing ribs (3).

4. The lithium sink liquor transfer line of claim 1, wherein, The main body (1) is a perforated steel belt composite pipeline.

5. A lithium sink solution delivery system characterized by, The lithium precipitation mother liquor conveying pipeline comprises a main body (1) and a pipe cover (2), the pipe cover (2) is sleeved on the main body (1), the pipe cover (2) comprises a substrate layer (21) and a buffer layer (23), the substrate layer (21) is arranged outside the main body (1), and the buffer layer (23) is arranged outside the substrate layer (21); 6. The lithium sink solution delivery system of claim 5, wherein, The lithium precipitation mother liquor conveying system comprises a main pipe (4) and a branch pipe (5), the main pipe (4) is communicated with the branch pipe (5), the branch pipe (5) is provided with a pipe valve, one end of the pipe valve is connected with a crystallizer, and the other end is connected with the branch pipe (5); and / or the pipe valve is a pinch valve (6), and a pipe sleeve (7) of the pinch valve (6) is made of high-temperature-resistant and corrosion-resistant material.

7. The lithium sink solution delivery system of claim 6, wherein, The pipe sleeve (7) is made of homopolypropylene, polytetrafluoroethylene, polyvinylidene fluoride or polyurethane.

8. The lithium sink solution delivery system of claim 5, wherein, The lithium precipitation mother liquor conveying system further comprises a vibrating device, and the vibrating device is arranged on the lithium precipitation mother liquor conveying pipeline.

9. The lithium sink solution delivery system of claim 5, wherein, The lithium precipitation mother liquor conveying system further comprises a main pipe (4) and a knocking part (81), and the knocking part (81) is arranged on the main pipe (4); or the lithium precipitation mother liquor conveying system further comprises a driving device and a knocking part (81), the driving device is drivingly connected with the knocking part (81), and the driving device drives the knocking part (81) to knock the lithium precipitation mother liquor conveying pipeline.

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