Solid-liquid separation device for preparing battery-grade lithium carbonate

Abstract

The utility model relates to the field of lithium carbonate preparation, in particular to a solid-liquid separation device for preparing battery-grade lithium carbonate, which comprises a device body, the inside of the device body is divided into a first cavity and a second cavity by a partition plate, an inclined flow guide plate is mounted in the first cavity, and an inclined flow guide plate is mounted in the second cavity. Three mounting grooves are formed in the upper end face of the flow guide plate, filter plates are mounted in the three mounting grooves, the diameters of meshes of the three filter plates are sequentially reduced from left to right, and a solution to be separated is poured into the upper end face of the flow guide plate, so that the solution flows obliquely downwards on the upper end face of the flow guide plate; meanwhile, solids in the solution can sequentially pass through the three filter plates, the solids with different sizes in the solution can be filtered and blocked through the meshes with different diameters of the three filter plates, the separated liquid flows into the separation frame, and then the solution can be further separated and filtered through the filter holes in the separation frame, so that the solid-liquid separation efficiency can be improved; and an effective separation effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium carbonate preparation, in particular to a solid-liquid separation device for preparing battery-grade lithium carbonate. Background Art

[0002] Lithium batteries are one of the battery pack technologies on the market with relatively stable chemical properties and characteristics, and relatively good service life attenuation. During the production and preparation of lithium batteries, it is necessary to separate the lithium carbonate raw materials into solid and liquid to obtain lithium carbonate raw materials with higher purity.

[0003] The production process of battery-grade lithium carbonate is a complex process, which involves steps such as raw material collection, raw material preparation, raw material mixing, raw material molding, raw material assembly, testing and packaging. In the preparation of lithium carbonate, the raw materials need to be separated from the solid and liquid.

[0004] At present, in the process of solid-liquid separation in the preparation of lithium carbonate, the separation of solids of different sizes in the solution is insufficient, and the separation method is relatively single, and most of the solutions are separated by only one method. Therefore, it is necessary to propose a solid-liquid separation device for battery-grade lithium carbonate preparation to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a solid-liquid separation device for preparing battery-grade lithium carbonate, which has the characteristics of filtering and blocking solids of different sizes in a solution, thereby improving the solid-liquid separation efficiency and achieving an effective separation effect.

[0006] To achieve the above object, the utility model provides the following technical solution: a solid-liquid separation device for preparing battery-grade lithium carbonate, comprising a device body, the interior of the device body is divided into a first cavity and a second cavity by a partition, an inclined guide plate is installed inside the first cavity, three mounting grooves are opened on the upper end surface of the guide plate, filter plates are installed inside the three mounting grooves, and the mesh diameters of the three filter plates are successively smaller from left to right;

[0007] Support plates are fixedly connected to the left and right sides of the inner wall of the second cavity, separation frames are placed on the upper end surfaces of the two support plates, and a plurality of evenly distributed filter holes are penetrated through the lower end surface of the separation frame.

[0008] In order to speed up the solid-liquid separation speed, as a preferred solid-liquid separation device for preparing battery-grade lithium carbonate of the utility model, the interior of the second cavity is provided with a push plate located above the separation frame, and the upper end surface of the device body is equipped with a cylinder whose output end is fixedly connected to the push plate.

[0009] In order to improve the effect of solid-liquid separation, as a preferred solid-liquid separation device for preparing battery-grade lithium carbonate of the utility model, the interior of the second cavity is detachably connected with a liquid guide mesh plate located below the separation frame.

[0010] In order to push open the clogged filter holes, as a preferred solid-liquid separation device for preparing battery-grade lithium carbonate of the utility model, the lower end surface of the push plate is fixedly connected with a plurality of push columns matching the filter holes.

[0011] In order to inject the solution into the first cavity, as a preferred solid-liquid separation device for preparing battery-grade lithium carbonate of the utility model, an opening is provided on the left side of the upper end surface of the device body, and a support column is fixedly connected between the lower end surface of the guide plate and the bottom end of the inner wall of the first cavity.

[0012] In order to discharge the separated liquid in the second cavity, as a preferred solid-liquid separation device for preparing battery-grade lithium carbonate of the utility model, the lower end surface of the second cavity is equipped with a drain pipe extending to the bottom of the device body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model firstly pours the solution to be separated into the upper end surface of the guide plate, so as to cause the solution to flow in an inclined downward direction on the upper end surface of the guide plate, and at the same time, the solid in the solution can pass through the three filter plates in sequence, and the solids of different sizes in the solution can be filtered and blocked through the mesh holes of the three filter plates with different diameters, and the separated liquid flows into the separation frame, and then the solution can be further separated and filtered through the filter holes in the separation frame, so as to improve the efficiency of solid-liquid separation and achieve an effective separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the utility model;

[0016] Figure 2 It is the overall cross-sectional structural diagram of the utility model;

[0017] Figure 3 This is a structural diagram of the guide plate of the utility model;

[0018] Figure 4 This is a structural diagram of the separation frame of the utility model.

[0019] In the figure: 1. device body; 101. opening; 102. first cavity; 103. second cavity; 104. drain pipe; 2. guide plate; 201. mounting groove; 202. filter plate; 3. separation frame; 301. filter hole; 302. push plate; 303. cylinder; 4. liquid guide mesh plate. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 A solid-liquid separation device for preparing battery-grade lithium carbonate comprises a device body 1, the interior of the device body 1 is divided into a first cavity 102 and a second cavity 103 by a partition, an inclined guide plate 2 is installed inside the first cavity 102, and three mounting grooves 201 are opened on the upper end surface of the guide plate 2, and filter plates 202 are installed inside the three mounting grooves 201, and the mesh diameters of the three filter plates 202 decrease from left to right;

[0021] Support plates are fixedly connected to the left and right sides of the inner wall of the second cavity 103 , and separation frames 3 are placed on the upper end surfaces of the two support plates. The lower end surface of the separation frame 3 is penetrated by a plurality of evenly distributed filtering holes 301 .

[0022] In this embodiment: the solution to be separated is poured into the upper end surface of the guide plate 2 in the first cavity 102, so that the solution is caused to flow in an inclined downward direction on the upper end surface of the guide plate 2, and at the same time, the solids in the solution can pass through the three filter plates 202 in sequence, and the solids of different sizes in the solution can be filtered and blocked by the meshes of different diameters of the three filter plates 202, and the separated liquid flows into the separation frame 3, and then the solution can be further separated and filtered through the filter holes 301 in the separation frame 3, thereby improving the efficiency of solid-liquid separation and achieving an effective separation effect.

[0023] As a technical optimization solution of the utility model, a push plate 302 located above the separation frame 3 is arranged inside the second cavity 103, and a cylinder 303 whose output end is fixedly connected to the push plate 302 is installed on the upper end surface of the device body 1.

[0024] In this embodiment: the air cylinder 303 is started to push the push plate 302 downward, thereby enabling the push plate 302 to move up and down in the separation frame 3, thereby accelerating the solid-liquid separation speed.

[0025] As a technical optimization solution of the present invention, the interior of the second cavity 103 is detachably connected with a liquid guide mesh plate 4 located below the separation frame 3 .

[0026] In this embodiment: the liquid guiding mesh plate 4 can further improve the solid-liquid separation effect, and secondly, the separated liquid can be discharged quickly.

[0027] As a technical optimization solution of the utility model, a plurality of push posts matching the filter holes 301 are fixedly connected to the lower end surface of the push plate 302 .

[0028] In this embodiment, the blocked filter hole 301 can be pushed open by moving the push column downward to avoid affecting the solid-liquid separation efficiency.

[0029] As a technical optimization solution of the utility model, an opening 101 is opened on the left side of the upper end surface of the device body 1, and a support column is fixedly connected between the lower end surface of the guide plate 2 and the bottom end of the inner wall of the first cavity 102.

[0030] In this embodiment: the opening 101 is used to facilitate injection of the solution into the first cavity 102, and the guide plate 2 can be supported by the support column.

[0031] As a technical optimization solution of the present invention, a drain pipe 104 extending to the bottom of the device body 1 is installed on the lower end surface of the second cavity 103 .

[0032] In this embodiment, the separated liquid in the second cavity 103 is discharged through the liquid discharge pipe 104 .

[0033] Working principle: first, pour the solution to be separated into the upper end surface of the guide plate 2 in the first cavity 102, so that the solution is forced to flow in an inclined downward direction on the upper end surface of the guide plate 2, and at the same time, the solids in the solution can pass through the three filter plates 202 in sequence, and the solids of different sizes in the solution can be filtered and blocked through the meshes of the three filter plates 202 with different diameters, and the separated liquid flows into the separation frame 3, and then the solution can be further separated and filtered through the filter holes 301 in the separation frame 3, and then the cylinder 303 can be started to push the push plate 302 downward, and then the push plate 302 can be moved up and down in the separation frame 3, which can speed up the solid-liquid separation speed, and finally the separated liquid is discharged through the drain pipe 104, and the three filter plates 202 are separated from the mounting groove 201 to process the separated solids.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid-liquid separation device for preparing battery-grade lithium carbonate, comprising a device body (1), characterized in that: The interior of the device body (1) is divided into a first cavity (102) and a second cavity (103) by a partition, an inclined guide plate (2) is installed inside the first cavity (102), the upper end surface of the guide plate (2) is provided with three installation grooves (201), and filter plates (202) are installed inside the three installation grooves (201), and the mesh diameters of the three filter plates (202) decrease from left to right; Support plates are fixedly connected to the left and right sides of the inner wall of the second cavity (103); separation frames (3) are placed on the upper end surfaces of the two support plates; and a plurality of evenly distributed filter holes (301) are penetrated through the lower end surface of the separation frame (3).

2. A solid-liquid separation device for preparing battery-grade lithium carbonate according to claim 1, characterized in that: A push plate (302) located above the separation frame (3) is arranged inside the second cavity (103), and a cylinder (303) whose output end is fixedly connected to the push plate (302) is installed on the upper end surface of the device body (1).

3. A solid-liquid separation device for preparing battery-grade lithium carbonate according to claim 1, characterized in that: The interior of the second cavity (103) is detachably connected to a liquid-conducting mesh plate (4) located below the separation frame (3).

4. A solid-liquid separation device for preparing battery-grade lithium carbonate according to claim 2, characterized in that: A plurality of push posts matching the filter holes (301) are fixedly connected to the lower end surface of the push plate (302).

5. A solid-liquid separation device for preparing battery-grade lithium carbonate according to claim 1, characterized in that: An opening (101) is provided on the left side of the upper end surface of the device body (1), and a support column is fixedly connected between the lower end surface of the guide plate (2) and the bottom end of the inner wall of the first cavity (102).

6. A solid-liquid separation device for preparing battery-grade lithium carbonate according to claim 1, characterized in that: A liquid discharge pipe (104) extending to the bottom of the device body (1) is installed on the lower end surface of the second cavity (103).

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