Batch mixing and sieving device for lithium cobalt oxide production
By reverse rotation of the stirring shaft and the mixing cylinder, the design of the reverse threaded rod is enhanced, and the mixing effect and screening accuracy of lithium cobalt oxide raw materials are solved, which is a problem of uneven mixing and inaccurate screening in traditional lithium cobalt oxide production is improved, and production efficiency and equipment life are improved.
Patent Information
- Application Number
- CN202421450501.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-24
AI Technical Summary
During the production process of traditional lithium cobalt oxide, the batch mixing and screening process are inefficient, uneven mixing and low screening accuracy, which affects product quality and increases production costs.
A batch mixing and screening device for lithium cobalt oxide production is designed. The mixing shaft rotates in reverse with the mixing barrel, and the external threaded rod and the internal threaded rod are reversely rotated to enhance convection and shearing, and equipped with scrapers and bristles to avoid accumulation, and screening is performed using an ultrasonic vibrating screen.
It improves the mixing uniformity and screening accuracy of lithium cobalt oxide raw materials, reduces blind spots and unmixed areas, extends equipment life, and reduces production costs and cycles.
Smart Images
Figure CN223042595U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium cobaltate production, in particular to a batch mixing and sieving device for lithium cobaltate production. Background Art
[0002] In recent years, with the popularization of new energy vehicles and the continuous progress of technology, as the core component of new energy vehicles, the market demand for lithium-ion batteries has increased rapidly. As an important cathode material for lithium-ion batteries, the market demand for lithium cobaltate also shows an explosive growth trend.
[0003] In the traditional batch mixing and sieving processes in the production of lithium cobaltate, there are problems such as low efficiency, uneven mixing, and low sieving accuracy. These problems not only affect the quality and performance of products, but also increase production costs and cycles. Summary of the Utility Model
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a batch mixing and sieving device for lithium cobaltate production. During the use of this device, the rotation direction of the stirring shaft is opposite to that of the mixing barrel, which helps to increase the convection and shear effects of raw materials in the mixing barrel and further improve the mixing effect.
[0005] To achieve the above object, according to an embodiment of the first aspect of the utility model, a batch mixing and sieving device for lithium cobaltate production is provided, which includes a workbench, a mixing barrel, a stirring mechanism, and a sieving mechanism; brackets are arranged on both sides of the workbench, the mixing barrel is rotatably arranged between the two brackets, the sieving mechanism is arranged below the workbench for sieving work; the stirring mechanism includes a power device, a stirring shaft, and a threaded stirring component. A toothed ring is arranged on the outer peripheral wall of the mixing barrel, a gear is connected to the output shaft of the power device, and the gear meshes with the toothed ring; the stirring shaft is rotatably arranged in the mixing barrel, and one end of the stirring shaft penetrates through the side wall of the mixing barrel and is connected with a synchronous belt, and the other end of the synchronous belt is connected to the output shaft of the power device; the threaded stirring component includes an outer threaded rod and an inner threaded rod, both the outer threaded rod and the inner threaded rod are arranged on the stirring shaft, and the inner threaded rod is arranged between the outer threaded rod and the stirring shaft.
[0006] As a further scheme of the utility model: a scraper is arranged on the stirring shaft, and a plurality of bristles are arranged on the scraper, and the bristles are in contact with the inner peripheral wall of the mixing barrel.
[0007] As a further scheme of the utility model: when the stirring shaft rotates, the rotation directions of the outer threaded rod and the inner threaded rod are opposite.
[0008] As a further solution of the utility model: a blanking chute is arranged on the workbench, and the screening mechanism is arranged below the blanking chute; and the screening mechanism adopts an ultrasonic vibrating screen.
[0009] As a further solution of the utility model: guide grooves are arranged on the outer peripheral wall of the mixing cylinder, support seats are arranged on the workbench, rollers are rotatably arranged between the support seats, and the rollers are rotatably arranged in the guide grooves.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] 1. In the utility model, the gear connected to the output shaft of the power device meshes with the gear ring on the outer peripheral wall of the mixing cylinder, so as to drive the mixing cylinder to rotate. At the same time, the stirring shaft is also driven to rotate in the mixing cylinder through the synchronous belt. The rotation of the stirring shaft drives the outer threaded rod and the inner threaded rod to rotate, so as to stir the raw materials, which helps to mix the lithium cobaltate raw materials evenly. And the rotation direction of the stirring shaft is opposite to that of the mixing cylinder, and this reverse rotation helps to increase the convection and shear action of the raw materials in the mixing cylinder, and further improves the mixing effect.
[0012] 2. In the utility model, by arranging the scraper and the brush hair, the accumulation and precipitation of raw materials on the cylinder wall are avoided, thereby improving the mixing effect.
[0013] 3. In the utility model, the rotation directions of the outer threaded rod and the inner threaded rod are opposite. When the raw materials are pushed in one direction by one threaded rod, the other threaded rod will push them in the opposite direction, so as to strengthen the flow and mixing of the raw materials in the mixing cylinder; at the same time, it helps to reduce the dead corners and unmixed areas formed by the raw materials in the cylinder, and further improves the mixing uniformity.
[0014] 4. In the utility model, through the installation and cooperation of the guide groove and the roller, the mixing cylinder can rotate smoothly, avoiding problems such as uneven materials and equipment damage caused by unstable rotation. At the same time, the contact area between the roller and the guide groove is small, reducing friction and wear, and prolonging the service life of the equipment. Description of the Drawings
[0015] Figure 1 It is a three-dimensional structural schematic diagram of a batch mixing and screening device for lithium cobaltate production.
[0016] Figure 2 It is a schematic diagram of the internal structure of the mixing cylinder.
[0017] Figure 3 It is a three-dimensional structural schematic diagram of the stirring shaft.
[0018] Reference numerals in the drawings: 1, workbench; 11, support; 12, blanking chute; 2, mixing cylinder; 21, gear ring; 22, guide groove; 3, power device; 31, output shaft; 32, gear; 33, synchronous belt; 4, stirring shaft; 41, scraper; 411, bristles; 5, external threaded rod; 6, internal threaded rod; 7, ultrasonic vibrating screen; 8, support seat; 81, roller. Detailed implementation mode
[0019] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0020] As Figures 1 to 3 shown, a batch mixing and sieving device for lithium cobaltate production includes a workbench 1, a mixing cylinder 2, a stirring mechanism and a sieving mechanism; brackets 11 are arranged on both sides of the workbench 1, the mixing cylinder 2 is rotatably arranged between the two brackets 11, and the sieving mechanism is arranged below the workbench 1 for sieving work;
[0021] The stirring mechanism includes a power device 3, a stirring shaft 4 and a threaded stirring assembly. A gear ring 21 is arranged on the outer peripheral wall of the mixing cylinder 2. The output shaft 31 of the power device 3 is connected with a gear 32, and the gear 32 meshes with the gear ring 21; the stirring shaft 4 is rotatably arranged in the mixing cylinder 2, and one end of the stirring shaft 4 penetrates through the side wall of the mixing cylinder 2 and is connected with a synchronous belt 33, and the other end of the synchronous belt 33 is connected to the output shaft 31 of the power device 3; the threaded stirring assembly includes an external threaded rod 5 and an internal threaded rod 6, and both the external threaded rod 5 and the internal threaded rod 6 are arranged on the stirring shaft 4, and the internal threaded rod 6 is arranged between the external threaded rod 5 and the stirring shaft 4.
[0022] The gear 32 connected to the output shaft 31 of the power device 3 meshes with the gear ring 21 on the outer peripheral wall of the mixing cylinder 2, thereby driving the mixing cylinder 2 to rotate. At the same time, the stirring shaft 4 is also driven to rotate in the mixing cylinder 2 through the synchronous belt 33. The rotation of the stirring shaft 4 drives the external threaded rod 5 and the internal threaded rod 6 to rotate, stirring the raw materials, which helps to mix the lithium cobaltate raw materials evenly. And the rotation direction of the stirring shaft 4 is opposite to the rotation direction of the mixing cylinder 2, and this reverse rotation helps to increase the convection and shear effects of the raw materials in the mixing cylinder 2, further improving the mixing effect.
[0023] A scraper 41 is arranged on the stirring shaft 4, and a plurality of bristles 411 are arranged on the scraper 41, and the bristles 411 are in contact with the inner peripheral wall of the mixing cylinder 2.
[0024] By setting the scraper 41 and the bristles 411, the accumulation and precipitation of raw materials on the cylinder wall are avoided, thereby improving the mixing effect.
[0025] When the stirring shaft 4 rotates, the outer threaded rod 5 and the inner threaded rod 6 rotate in opposite directions.
[0026] Due to the opposite rotation directions of the outer threaded rod 5 and the inner threaded rod 6, when the raw materials are pushed in one direction by one threaded rod, the other threaded rod pushes them in the opposite direction, thus strengthening the flow and mixing of the raw materials in the mixing cylinder 2; at the same time, it helps to reduce the dead corners and unmixed areas formed by the raw materials in the cylinder, further improving the mixing uniformity.
[0027] A blanking groove 12 is provided on the workbench 1, and the sieving mechanism is arranged below the blanking groove 12; and the sieving mechanism adopts an ultrasonic vibrating screen 7.
[0028] By providing the blanking groove 12 on the workbench 1 and using the ultrasonic vibrating screen 7 as the sieving mechanism, seamless docking of the raw materials from mixing to sieving is achieved. The production efficiency is improved, and the accuracy and stability of the sieving result are ensured, providing a strong guarantee for the production of lithium cobalt oxide.
[0029] Guide grooves 22 are provided on the outer peripheral wall of the mixing cylinder 2, support seats 8 are provided on the workbench 1, and rollers 81 are rotatably arranged between the support seats 8, and the rollers 81 are rotatably arranged in the guide grooves 22.
[0030] Through the installation and cooperation of the guide grooves 22 and the rollers 81, the mixing cylinder 2 can rotate smoothly, avoiding problems such as uneven materials and equipment damage caused by unstable rotation. At the same time, the contact area between the rollers 81 and the guide grooves 22 is small, reducing friction and wear, and extending the service life of the equipment.
[0031] The working principle of the present utility model: Driven by the power device 3, the gear 32 on its output shaft 31 meshes with the toothed ring 21 on the outer peripheral wall of the mixing cylinder 2, so that the mixing cylinder 2 rotates stably between the brackets 11 on both sides of the workbench 1. At the same time, the power device 3 drives the stirring shaft 4 to rotate in the mixing cylinder 2 through the synchronous belt 33. The outer threaded rod 5 and the inner threaded rod 6 on the stirring shaft 4 rotate in opposite directions to efficiently stir and mix the raw materials, ensuring the uniform mixing of the lithium cobalt oxide raw materials. The scraper 41 and the bristles 411 provided on the stirring shaft 4 can remove the material residues on the inner wall of the mixing cylinder 2, further improving the mixing effect. The uniformly mixed materials flow into the ultrasonic vibrating screen 7 below through the blanking groove 12 on the workbench 1 for sieving, realizing the precise sieving of the raw materials.
[0032] The above embodiments are only used to illustrate the technical method of the present utility model rather than to limit it. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present utility model.
Claims
1. A batch mixing and screening device for lithium cobalt oxide production, comprising a workbench (1), a mixing drum (2), a stirring mechanism and a screening mechanism; brackets (11) are arranged on both sides of the workbench (1), the mixing drum (2) is rotatably arranged between the brackets (11) on both sides, and the screening mechanism is arranged below the workbench (1) to perform screening work; It is characterized in that The stirring mechanism comprises a power device (3), a stirring shaft (4) and a threaded stirring assembly; a gear ring (21) is arranged on the outer peripheral wall of the mixing barrel (2); the output shaft (31) of the power device (3) is connected to a gear (32); the gear (32) and the gear ring (21) are meshed with each other; The stirring shaft (4) is rotatably arranged in the mixing barrel (2), and one end of the stirring shaft (4) passes through the side wall of the mixing barrel (2) and is connected to a synchronous belt (33), and the other end of the synchronous belt (33) is connected to the output shaft (31) of the power device (3); The threaded stirring assembly comprises an external threaded rod (5) and an internal threaded rod (6), wherein the external threaded rod (5) and the internal threaded rod (6) are both arranged on the stirring shaft (4), and the internal threaded rod (6) is arranged between the external threaded rod (5) and the stirring shaft (4).
2. A batch mixing and screening device for lithium cobalt oxide production according to claim 1, characterized in that: The stirring shaft (4) is provided with a scraper (41), and the scraper (41) is provided with a plurality of bristles (411), and the bristles (411) are connected to the inner peripheral wall of the mixing barrel (2).
3. A batch mixing and screening device for lithium cobalt oxide production according to claim 1, characterized in that: When the stirring shaft (4) rotates, the external threaded rod (5) and the internal threaded rod (6) rotate in opposite directions.
4. A batch mixing and screening device for lithium cobalt oxide production according to claim 1, characterized in that: The workbench (1) is provided with a material discharge trough (12), and the screening mechanism is arranged below the material discharge trough (12); and the screening mechanism adopts an ultrasonic vibration screen (7).
5. A batch mixing and screening device for lithium cobalt oxide production according to claim 1, characterized in that: A guide groove (22) is arranged on the outer peripheral wall of the mixing cylinder (2), a support seat (8) is arranged on the workbench (1), a roller (81) is rotatably arranged between the support seats (8), and the roller (81) is rotatably arranged in the guide groove (22).