A battery-grade lithium carbonate purification device
By incorporating a distribution baffle and a reverse-rotating stirring blade structure into the lithium carbonate purification unit, the problem of incomplete reaction caused by direct addition of the precipitant was solved, resulting in more efficient lithium carbonate purification and reduced costs.
Patent Information
- Application Number
- CN202422981719.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In existing technologies, adding the precipitant directly to the lithium carbonate solution results in insufficient reaction, increasing the amount of precipitant used and the cost.
The design employs a material distribution baffle and stirring blade structure. By quantitatively adding precipitant and causing the stirring blade to rotate in the opposite direction to form a vortex, it ensures that the impurity ions inside lithium carbonate react fully.
It improves reaction efficiency, reduces the amount of precipitant used, and lowers costs.
Smart Images
Figure CN223587147U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of lithium carbonate purification, especially to a battery grade lithium carbonate purification device. BACKGROUND
[0002] Lithium carbonate (Li2CO3) is a colorless monoclinic crystal, slightly soluble in water, insoluble in ethanol and acetone. It is an important raw material for lithium compounds, widely used in ceramics, glass, medicine, batteries and other fields. Especially in battery manufacturing, battery grade lithium carbonate is the key raw material for preparing lithium ion battery positive electrode material.
[0003] In order to purify industrial grade lithium carbonate, so that lithium carbonate meets the battery manufacturing standard, a battery grade lithium carbonate purification device is needed.
[0004] Currently, lithium carbonate is mainly purified by chemical precipitation method. By using precipitant, controlling reaction conditions (such as pH value, temperature, stirring speed) and other conditions, impurity ions react with precipitant to form insoluble precipitate, so as to separate from lithium carbonate. However, in the current equipment, the precipitant is usually directly added to the lithium carbonate solution for stirring reaction, which will cause the precipitate produced by the reaction of the precipitant and the impurity ions to wrap part of the precipitant, resulting in insufficient reaction, thereby increasing the amount of precipitant and the cost. Therefore, a battery grade lithium carbonate purification device is proposed to solve the above problems. UTILITY MODEL CONTENT
[0005] In order to make up for the above shortcomings, the utility model provides a battery grade lithium carbonate purification device, which aims to improve the problem that the precipitant is directly added to the lithium carbonate solution in the prior art, resulting in insufficient reaction.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a battery grade lithium carbonate purification device, comprising a purification tank, the bottom end of the purification tank is fixedly connected with a connecting flange, the bottom of the connecting flange is fixedly connected with a power assembly, the power assembly is used for providing rotating power, the top end of the power assembly is fixedly connected with a rotating shaft, the outer periphery of the rotating shaft is fixedly connected with a distribution baffle, the inside of the distribution baffle is provided with a discharging gap, the top end of the purification tank is fixedly connected with a fixed plate, the top end of the fixed plate is fixedly connected with a transfer tank, the top end of the transfer tank is fixedly connected with a discharging tank, and the inside of the transfer tank is fixedly connected with a semicircular baffle.
[0007] As a further description of the above technical scheme:
[0008] The rotating shaft is fixedly connected with a driving bevel gear at the outer periphery, the top end of the driving bevel gear is engaged with a transmission bevel gear, the right side of the transmission bevel gear is rotatably connected with a rotating support, the top end of the transmission bevel gear is engaged with a driven bevel gear, the top end of the driven bevel gear is fixedly connected with a rotating pipe, the top end of the rotating pipe is fixedly connected with a connecting plate, the inner side of the connecting plate is fixedly connected with a secondary stirring blade, and the outer periphery of the rotating shaft is fixedly connected with a primary stirring blade.
[0009] As a further description of the above technical solution:
[0010] The left side of the purification tank is provided with a discharge pipe, and the right side of the purification tank is provided with a feeding pipe.
[0011] As a further description of the above technical solution:
[0012] The power assembly comprises a motor support, the top end of the motor support is fixedly connected to the bottom of the connecting flange, the inner portion of the motor support is fixedly connected with a rotating motor, and the bottom end of the rotating shaft is fixedly connected to the top end output shaft of the rotating motor.
[0013] As a further description of the above technical solution:
[0014] The outer side of the distribution baffle is in contact with the inner side of the semicircular baffle.
[0015] As a further description of the above technical solution:
[0016] The top end of the rotating support is fixedly connected to the bottom of the connecting flange.
[0017] As a further description of the above technical solution:
[0018] The inner portions of the driven bevel gear, the rotating pipe and the connecting plate are rotatably connected to the outer periphery of the rotating shaft.
[0019] As a further description of the above technical solution:
[0020] The outer periphery of the rotating pipe penetrates through and is rotatably connected to the inner portion of the connecting flange.
[0021] The utility model has the advantages of the following:
[0022] 1、 the utility model discloses, through setting up distribution baffle, blanking gap, semicircular baffle and other structures, open rotating motor, make precipitant first ration transmission to the transfer tank, then from the transfer tank batch transmission to the purification tank, thereby can add precipitant to the purification tank interior in section, guarantee that lithium carbonate internal impurity ion can fully carry out the reaction, improve the reaction efficiency.
[0023] 2. The utility model discloses, through setting up driving bevel gear, transmission bevel gear, passive bevel gear etc. structure, open rotation motor makes main stirring vane and vice stirring vane rotate simultaneously and the rotation direction is opposite, thereby makes the solution of stirring form vortex, and the stirring is more sufficient, improves the reaction efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is the whole front schematic view of the utility model.
[0025] Figure 2 It is the purification tank front section schematic view of the utility model.
[0026] Figure 3 It is the blanking tank front section schematic view of the utility model.
[0027] Figure 4 It is Figure 2 the enlarged schematic view of A of
[0028] LEGEND:
[0029] 1, purification tank, 2, discharge pipe, 3, feed pipe, 4, connecting flange, 5, motor support, 6, rotation motor, 7, rotating shaft, 8, distribution baffle, 9, blanking gap, 10, fixed plate, 11, transfer tank, 12, blanking tank, 13, semicircular baffle, 14, driving bevel gear, 15, transmission bevel gear, 16, rotating support, 17, passive bevel gear, 18, rotating pipe, 19, connecting plate, 20, vice stirring vane, 21, main stirring vane. DETAILED DESCRIPTION
[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.
[0031] Refer to Figure 1 - Figure 3The utility model provides a kind of embodiment: a battery-grade lithium carbonate purification device, including the purification tank 1 for conveniently purifying lithium carbonate solution, the left side of purification tank 1 is provided with the discharge pipe 2 for conveniently discharging lithium carbonate solution after purification, discharge pipe 2 is provided with filter screen inside, the right side of purification tank 1 is provided with the feed pipe 3 for conveniently discharging the lithium carbonate solution that has not been purified, purification tank 1 bottom end is fixedly connected with the connecting flange 4 of fixed connection effect, connecting flange 4 bottom is fixedly connected with power assembly, power assembly is used to provide rotating power, power assembly includes the motor support 5 of fixed connection effect, motor support 5 top end is fixedly connected in the bottom of connecting flange 4, motor support 5 is fixedly connected with the rotating motor 6 of providing rotating power inside, power assembly top end is fixedly connected with rotating shaft 7, rotating shaft 7 bottom end is fixedly connected on the top end output shaft of rotating motor 6, open rotating motor 6, rotating motor 6 top end output shaft will drive rotating shaft 7 rotation, rotating shaft 7 outer periphery is fixedly connected with distribution baffle 8, distribution baffle 8 is provided with two groups, symmetrically arranged, distribution baffle 8 is internally provided with discharging gap 9, the discharging gap 9 of upside distribution baffle 8 and the discharging gap 9 of downside distribution baffle 8 are 180 degrees symmetrical in direction, the top end of purification tank 1 is fixedly connected with the fixed plate 10 fixed with external machine, the top end of fixed plate 10 is fixedly connected with the intermediate tank 11 for conveniently quantitative discharging, the top end of intermediate tank 11 is fixedly connected with the discharging tank 12 for conveniently placing precipitant, the inside of intermediate tank 11 is fixedly connected with semicircular baffle 13, semicircular baffle 13 is provided with two groups, symmetrically arranged in the upper and lower ends of intermediate tank 11, distribution baffle 8 outside and semicircular baffle 13 inside are in contact.
[0032] Referring to Figure 2 And Figure 4 , rotating shaft 7 outer periphery is fixedly connected with driving bevel gear 14, driving bevel gear 14 top end is engaged with transmission bevel gear 15, transmission bevel gear 15 right side is rotatably connected with the rotating support 16 of fixed support effect, rotating support 16 top end is fixedly connected in the bottom of connecting flange 4, transmission bevel gear 15 top end is engaged with passive bevel gear 17, transmission bevel gear 15 can drive rotating transmission to passive bevel gear 17 of driving bevel gear 14, simultaneously makes passive bevel gear 17 and driving bevel gear 14 rotating direction opposite, passive bevel gear 17 top end is fixedly connected with the rotating pipe 18 of fixed connection effect, rotating pipe 18 outer periphery is penetrated and rotatably connected in the inside of connecting flange 4, rotating pipe 18 top end is fixedly connected with connecting plate 19, rotating pipe 18 rotation will drive connecting plate 19 rotation, the inside of passive bevel gear 17, rotating pipe 18, connecting plate 19 is rotatably connected in the outer periphery of rotating shaft 7, connecting plate 19 inside is fixedly connected with the auxiliary stirring blade 20 for conveniently stirring lithium carbonate solution, rotating shaft 7 outer periphery is fixedly connected with the main stirring blade 21 for conveniently stirring lithium carbonate solution.
[0033] Working principle: when wanting to add precipitator to the inside of the purification tank 1 in batches, open the rotating motor 6, the rotating motor 6 drives the material distribution baffle 8 to rotate, when the lower opening gap 9 of the upper material distribution baffle 8 is driven to the left side of the upper semicircular baffle 13, at this time the lower opening gap 9 of the lower material distribution baffle 8 is rotated to the right side of the lower semicircular baffle 13, at this time the upper lower opening gap 9 is opened, the lower opening gap 9 is closed, at this time the precipitator in the lower discharge tank 12 enters the inside of the transfer tank 11, when the rotating motor 6 rotates 180 degrees again, at this time the upper lower opening gap 9 is closed, the lower opening gap 9 is opened, at this time the precipitator will enter the purification tank 1, so that the precipitator can be added to the inside of the purification tank 1 in stages, ensure that the impurity ions in the lithium carbonate can fully react. When you want to make the reaction more sufficient, open the rotating motor 6, the rotating motor 6 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the main stirring blade 21 to rotate, at the same time the rotating shaft 7 drives the driving bevel gear 14 to rotate, the driving bevel gear 14 drives the transmission bevel gear 15 to rotate, the transmission bevel gear 15 drives the driven bevel gear 17 to rotate, the driven bevel gear 17 drives the rotating pipe 18 to rotate, the rotating pipe 18 drives the connecting plate 19 to rotate, the connecting plate 19 drives the auxiliary stirring blade 20 to rotate, at the same time the auxiliary stirring blade 20 and the main stirring blade 21 are opposite in direction, so that the stirring solution forms vortex, the stirring is more sufficient, improve the reaction efficiency.
[0034] Finally, it should be noted that: the above only for preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.
Claims
1. A battery grade lithium carbonate purification device comprising a purification tank (1), characterized in that: The bottom end of the purification tank (1) is fixedly connected with a connecting flange (4), the bottom of the connecting flange (4) is fixedly connected with a power assembly, the power assembly is used for providing rotating power, the top end of the power assembly is fixedly connected with a rotating shaft (7), the outer periphery of the rotating shaft (7) is fixedly connected with a distribution baffle (8), the inside of the distribution baffle (8) is provided with a discharging gap (9), the top end of the purification tank (1) is fixedly connected with a fixed plate (10), the top end of the fixed plate (10) is fixedly connected with a transfer tank (11), the top end of the transfer tank (11) is fixedly connected with a discharging tank (12), the inside of the transfer tank (11) is fixedly connected with a semicircular baffle (13).
2. The battery grade lithium carbonate purification device according to claim 1, characterized in that: The outer periphery of the rotating shaft (7) is fixedly connected with a driving bevel gear (14), the top end of the driving bevel gear (14) is engaged with a transmission bevel gear (15), the right side of the transmission bevel gear (15) is rotatably connected with a rotating support (16), the top end of the transmission bevel gear (15) is engaged with a driven bevel gear (17), the top end of the driven bevel gear (17) is fixedly connected with a rotating pipe (18), the top end of the rotating pipe (18) is fixedly connected with a connecting plate (19), the inside of the connecting plate (19) is fixedly connected with a secondary stirring blade (20), the outer periphery of the rotating shaft (7) is fixedly connected with a primary stirring blade (21).
3. The battery grade lithium carbonate purification device according to claim 1, characterized in that: The left side of the purification tank (1) is provided with a discharging pipe (2), and the right side of the purification tank (1) is provided with a feeding pipe (3).
4. The battery grade lithium carbonate purification device according to claim 1, characterized in that: The power assembly comprises a motor support (5), the top end of the motor support (5) is fixedly connected to the bottom of the connecting flange (4), the inside of the motor support (5) is fixedly connected with a rotating motor (6), and the bottom end of the rotating shaft (7) is fixedly connected to the top end output shaft of the rotating motor (6).
5. The battery grade lithium carbonate purification plant as claimed in claim 1, wherein: The outside of the distribution baffle (8) is in contact with the inside of the semicircular baffle (13).
6. The battery grade lithium carbonate purification plant of claim 2, wherein: The top end of the rotating support (16) is fixedly connected to the bottom of the connecting flange (4).
7. The battery grade lithium carbonate purification plant of claim 2, wherein: The inside of the driven bevel gear (17), the rotating pipe (18) and the connecting plate (19) is rotatably connected to the outer periphery of the rotating shaft (7).
8. The battery grade lithium carbonate purification plant of claim 2, wherein: The rotating pipe (18) penetrates through and is rotatably connected to the inside of the connecting flange (4).