A battery-grade lithium carbonate purification device

Abstract

The utility model relates to lithium carbonate purification related technical field especially, and it is a kind of battery grade lithium carbonate purification equipment, including purification jar;The inside fixedly connected with filter cartridge of purification jar;The inside of filter cartridge is equipped with agitating subassembly, and the agitating subassembly includes stirring motor, is installed in the bottom of purification jar;Lower bearing seat, is set up in the inside bottom end of filter cartridge;Stirring rod, rotationally connected in the inside of filter cartridge, bottom end with the inner wall connection of lower bearing seat;Fixed sleeve, fixedly connected with the outside wall of stirring rod;Stirring vane, fixedly connected with the outside wall of fixed sleeve;By integrating agitating subassembly in filter cartridge, by stirring rod drive stirring vane and discharge vane, in the dynamic stirring material of filtration process, can prevent filter hole blockage;In addition, stirring vane stirs lithium carbonate in filter cartridge interior, promotes the flow rate of lithium carbonate, and then realizes the promotion purification efficiency and purification effect.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium carbonate purification, and in particular to a battery-grade lithium carbonate purification device. Background Technology

[0002] Lithium carbonate is an inorganic compound, a colorless monoclinic crystal or white powder, with the chemical formula Li₂CO₃. It is soluble in dilute acids, slightly soluble in water, and its solubility is greater in cold water than in hot water. It is insoluble in alcohols and acetone. Its density is 2.11 g / cm³, and its melting point is 723℃ (1.013 × 10⁵ Pa). It can be used in the manufacture of ceramics, pharmaceuticals, catalysts, etc., and is a commonly used raw material for lithium-ion batteries. Lithium carbonate is an important chemical raw material, and with the development of new energy plans, lithium-ion batteries are one of the key energy industries supported for development.

[0003] Industrial-grade lithium carbonate can be produced in high-purity form through methods such as electrolysis, Li2CO3 recrystallization, hydrocarbonation decomposition, hydrocarbonation precipitation, and sodium carbonate chemical precipitation.

[0004] In the prior art, for example CN220589204U, a battery-grade lithium carbonate purification device is proposed, including a top plate and a barrel. The top plate is located at the top of the barrel and is in contact with a cleaning brush. A filter barrel is arranged inside the top plate. A drive structure is provided on the top plate. Cleaning brushes are symmetrically arranged between the barrel and the filter barrel. A guide structure is provided between the cleaning brushes and the drive structure. The drive structure is used to guide the displacement of the guide structure. The guide structure drives the two cleaning brushes to rotate while making circular motion around the filter barrel.

[0005] In the existing technology, the existing purification equipment does not mix solid and liquid sufficiently, which affects the reaction efficiency and the removal of impurities, and the purified lithium carbonate is not easy to discharge. Utility Model Content

[0006] The purpose of this invention is to provide a battery-grade lithium carbonate purification device to solve the problems mentioned in the background art.

[0007] The technical solution adopted in this utility model is:

[0008] A battery-grade lithium carbonate purification device, comprising a purification tank;

[0009] A filter cylinder is fixedly connected inside the purification tank;

[0010] The filter cylinder is equipped with an agitation assembly, which includes an agitator motor installed at the bottom of the purification tank; a lower bearing seat located at the bottom of the filter cylinder; a stirring rod rotatably connected to the inside of the filter cylinder, with its bottom end connected to the inner wall of the lower bearing seat; a fixed sleeve fixedly connected to the outer wall of the stirring rod; and stirring blades fixedly connected to the outer wall of the fixed sleeve.

[0011] Optionally, the purification tank includes a tank body; a top cover disposed on the top of the tank body; a water outlet valve fixedly connected to the bottom of the tank body and connected to the liquid outlet end of the tank body; and a discharge valve disposed at the bottom of the tank body and connected to the bottom of the filter cartridge.

[0012] Optionally, the agitation assembly further includes discharge blades, which are fixedly connected to the outer wall of the agitator rod.

[0013] Optionally, there are four discharge blades, which are arranged at an angle on the bottom surface of the filter cylinder.

[0014] Optionally, the agitation assembly further includes a support frame fixedly connected to the inner wall of the filter cylinder; and an upper bearing seat fixedly connected to one end of the support frame, with its inner wall connected to the top of the agitator rod.

[0015] Optionally, a spraying assembly is installed inside the top cover.

[0016] Optionally, the spraying assembly includes a spray pump installed on the top of the top cover; an inlet pipe located at the top inlet of the spray pump; a tee pipe fixedly connected to the inside of the top cover, with its top end connected to the outlet of the spray pump; and spray pipes symmetrically arranged at the two ends of the tee pipe.

[0017] Optionally, the outer wall of the spray pipe is provided with multiple spray nozzles.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] By integrating an agitator into the filter cartridge, the agitator rod drives the agitator blades and discharge blades to dynamically agitate the material during the filtration process, preventing filter pore blockage. In addition, the agitator blades agitate the lithium carbonate inside the filter cartridge, increasing the flow rate of lithium carbonate, thereby improving purification efficiency and effect. Furthermore, by setting the discharge blades, after purification is completed, rotating the discharge blades allows the lithium carbonate to be discharged quickly, improving purification efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this application;

[0022] Figure 2 This is a cross-sectional view of the purification tank in this application;

[0023] Figure 3 This is a schematic diagram of the agitation component in this application.

[0024] Figure 4 This is a schematic diagram of the spraying component in this application.

[0025] Figure label:

[0026] 10. Purification tank; 11. Tank body; 12. Top cover; 13. Water outlet valve; 14. Material outlet valve;

[0027] 20. Filter cartridge;

[0028] 30. Agitator assembly; 31. Agitator motor; 32. Lower bearing housing; 33. Agitator rod; 34. Fixing sleeve; 35. Agitator blades; 36. Discharge blades; 37. Support frame; 38. Upper bearing housing;

[0029] 40. Spraying assembly; 41. Spraying pump; 42. Liquid inlet pipe; 43. T-connector; 44. Spraying pipe. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Given that existing purification equipment does not mix solids and liquids sufficiently, affecting reaction efficiency and impurity removal, and that purified lithium carbonate is not easy to discharge.

[0033] like Figure 1-4 As shown, this utility model embodiment provides a battery-grade lithium carbonate purification device, including a purification tank 10, which includes a tank body 11; a top cover 12 disposed on the top of the tank body 11; a water outlet valve 13 fixedly connected to the bottom of the tank body 11 and connected to the liquid outlet end of the tank body 11; and a discharge valve 14 disposed at the bottom of the tank body 11 and connected to the bottom of a filter cylinder 20; the filter cylinder 20 is fixedly connected inside the purification tank 10.

[0034] During purification, industrial-grade lithium carbonate is placed inside the filter cartridge 20, allowing the liquid inside the industrial-grade lithium carbonate to flow out through the filter cartridge 20. The filtered liquid is then discharged through the outlet valve 13 at the bottom of the tank 11. After purification and filtration are completed, the lithium carbonate is discharged through the outlet valve 14 by opening the outlet valve 14.

[0035] The filter cylinder 20 is equipped with an agitation assembly 30, which includes an agitation motor 31 installed at the bottom of the purification tank 10; a lower bearing seat 32 located at the bottom of the filter cylinder 20; an agitation rod 33 rotatably connected to the inside of the filter cylinder 20, with its bottom end connected to the inner wall of the lower bearing seat 32; a fixing sleeve 34 fixedly connected to the outer wall of the agitation rod 33; and agitation blades 35 fixedly connected to the outer wall of the fixing sleeve 34.

[0036] During the purification process, the stirring motor 31 is started, which drives the stirring rod 33 to rotate. The stirring rod 33 drives the stirring blades 35 on the outer wall to rotate, which in turn stirs the lithium carbonate inside the filter cartridge 20, thereby improving the purification efficiency and effect.

[0037] Furthermore, the stirring assembly 30 also includes discharge blades 36, which are fixedly connected to the outer wall of the stirring rod 33. There are four discharge blades 36 in total, which are arranged obliquely on the inner bottom surface of the filter cylinder 20. By setting the discharge blades 36, which are obliquely arranged plates, after purification, the discharge blades 36 can be rotated to drive the lithium carbonate to be discharged quickly.

[0038] Furthermore, the stirring assembly 30 also includes a support 37, which is fixedly connected to the inner wall of the filter cylinder 20; and an upper bearing seat 38, which is fixedly connected to one end of the support 37, with its inner wall connected to the top of the stirring rod 33.

[0039] Furthermore, a spraying assembly 40 is installed inside the top cover 12. The spraying assembly 40 includes a spraying pump 41 installed on the top of the top cover 12; an inlet pipe 42 located at the top inlet of the spraying pump 41; a three-way pipe 43 fixedly connected to the inside of the top cover 12, with its top end connected to the outlet of the spraying pump 41; and a spraying pipe 44 symmetrically arranged at the two ends of the three-way pipe 43, with multiple spray nozzles opened on the outer side wall of the spraying pipe 44.

[0040] During use, in the purification process, by starting the spray pump 41, the external deionized water is pumped into the three-way pipe 43 through the liquid inlet pipe 42, and then water columns are sprayed out through the spray pipes 44 at both ends of the three-way pipe 43 to clean and purify lithium carbonate, which can further improve the purification effect.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery-grade lithium carbonate purification apparatus, characterized by, include: Purification tank (10); A filter cylinder (20) is fixedly connected inside the purification tank (10); The filter cylinder (20) is equipped with an agitation component (30), which includes: A stirring motor (31) is installed at the bottom of the purification tank (10); The lower bearing seat (32) is located at the bottom of the inside of the filter cylinder (20); The stirring rod (33) is rotatably connected to the inside of the filter cylinder (20), and its bottom end is connected to the inner wall of the lower bearing seat (32); A fixed sleeve (34) is fixedly connected to the outer wall of the stirring rod (33); The stirring blade (35) is fixedly connected to the outer wall of the fixed sleeve (34).

2. The battery-grade lithium carbonate purification apparatus according to claim 1, characterized by, The purification tank (10) includes: Tank body (11); A top cover (12) is disposed on the top of the tank body (11); The water outlet valve (13) is fixedly connected to the bottom of the tank (11) and connected to the liquid outlet end of the tank (11); The discharge valve (14) is located at the bottom of the tank (11) and is connected to the bottom of the filter cylinder (20).

3. The battery-grade lithium carbonate purification apparatus according to claim 1, wherein, The agitation assembly (30) further includes: The discharge blade (36) is fixedly connected to the outer wall of the stirring rod (33).

4. The battery-grade lithium carbonate purification apparatus according to claim 3, wherein, There are four discharge blades (36), which are arranged obliquely on the bottom surface of the filter cylinder (20).

5. The battery-grade lithium carbonate purification plant of claim 1, wherein, The agitation assembly (30) further includes: The bracket (37) is fixedly connected to the inner wall of the filter cylinder (20); The upper bearing seat (38) is fixedly connected to one end of the bracket (37), and its inner wall is connected to the top of the stirring rod (33).

6. The battery-grade lithium carbonate purification apparatus according to claim 2, wherein, The spraying assembly (40) is installed inside the top cover (12).

7. The battery-grade lithium carbonate purification equipment according to claim 6, characterized in that, The spraying assembly (40) includes: A spray pump (41) is installed on top of the top cover (12); The liquid inlet pipe (42) is located at the top liquid inlet of the spray pump (41); A three-way pipe (43) is fixedly connected to the inside of the top cover (12), and its top end is connected to the outlet of the spray pump (41). The spray pipe (44) is symmetrically arranged at the two ports of the three-way pipe (43).

8. The battery-grade lithium carbonate purification equipment according to claim 7, characterized in that, The outer wall of the spray pipe (44) is provided with multiple spray nozzles.

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