Raw material mixing device for manufacturing iron oxide electrode of lithium battery
By employing a rotating inner cylinder combined with ultrasonic vibration and mechanical stirring in the lithium battery iron oxide electrode mixing device, the problem of unsatisfactory mixing effect was solved, achieving efficient and comprehensive raw material mixing.
Patent Information
- Application Number
- CN202422956600.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-02
AI Technical Summary
In the existing technology, the mixing device used for iron oxide electrodes of lithium batteries has the problem of unsatisfactory mixing effect, especially the fixed installation of the ultrasonic vibration device, which makes it difficult to improve the mixing efficiency and quality.
A mixing device was designed, wherein the mixing inner cylinder and the outer cylinder are separated. The inner cylinder can rotate and drive the ultrasonic vibration component to rotate. Combined with the stirring rod driven by the stirring motor, mechanical stirring is performed to form a mixing area between the inner and outer cylinders. Mixing is carried out by combining ultrasonic vibration and mechanical stirring.
It achieves efficient mixing of iron oxide electrode raw materials, eliminates dead zones, improves mixing quality and efficiency, has a reasonable structure, and makes full use of the advantages of ultrasonic and mechanical stirring.
Smart Images
Figure CN223530327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lithium battery production equipment, specifically a raw material mixing device for making iron oxide electrodes for lithium batteries. Background Technology
[0002] In existing technologies, the iron oxide electrode is a crucial component of lithium batteries. Iron oxide electrodes are characterized by high capacity, high cycle stability, and good electrochemical performance, making them very important in the fabrication of lithium batteries.
[0003] In the prior art, the specific preparation method of iron oxide electrode is as follows: First, iron salt, precipitant and solvent in the raw materials are mixed to obtain iron salt solution; then, directing agent and solvent are mixed to obtain directing agent solution; then, iron salt solution and directing agent solution are mixed, followed by hydrothermal reaction, then the reaction system is cooled, the solid product in the reaction system is collected and washed, and finally the solid product is dried to obtain precursor; then the precursor is calcined to obtain layered porous iron oxide electrode material.
[0004] In the process of obtaining the iron salt solution by mixing as described above, a mixing mechanism that can thoroughly mix the raw materials is required. In the existing technology, mechanical structures such as stirring motors and stirring rods are mostly used to achieve mixing of raw materials. However, due to the porous nature of iron oxide electrodes, the mixing effect of mechanical stirring structures is not ideal.
[0005] Existing technologies also utilize ultrasonic devices to achieve ultrasonic vibration and mixing, which can effectively take advantage of the porous nature of iron oxide for mixing and has a very significant effect. However, most of the ultrasonic vibration devices in existing technologies are fixed installations, which cannot further improve the mixing effect and thus cannot meet the requirements.
[0006] Therefore, in order to solve the above problems, it is necessary to develop a raw material mixing device with a reasonable structure that can improve the mixing quality and efficiency for the production of iron oxide electrodes for lithium batteries. Utility Model Content
[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a raw material mixing device for manufacturing iron oxide electrodes for lithium batteries; the technical solution is as follows:
[0008] A raw material mixing device for manufacturing iron oxide electrodes for lithium batteries includes a mixing outer cylinder and a mixing inner cylinder located at the middle of the mixing outer cylinder. The mixing inner cylinder has a U-shaped structure, and a mixing area for raw materials is left between the mixing inner cylinder and the mixing outer cylinder. A fixed ring plate extending inward is provided at the upper end of the mixing outer cylinder, while a movable ring plate extending outward is provided at the upper end of the mixing inner cylinder. The movable ring plate is placed on the fixed ring plate, so that the movable ring plate and the mixing inner cylinder can rotate accordingly.
[0009] The inner wall and bottom of the mixing inner cylinder are equipped with ultrasonic vibration components. The sound waves emitted by the ultrasonic vibration components are all aimed at the middle mixing area. A rotating mechanism is also provided above the mixing inner cylinder. The main shaft of the rotating mechanism extends downward into the mixing inner cylinder, and a connecting plate is installed on the main shaft. The connecting plate is fixed to the side wall of the mixing inner cylinder, thereby integrating the mixing inner cylinder and the main shaft into one unit.
[0010] Driven by the rotating mechanism, the inner mixing cylinder can rotate inside the outer mixing cylinder, and correspondingly drive the ultrasonic vibration component on the inner wall of the inner mixing cylinder to rotate, thereby performing ultrasonic vibration mixing on the raw materials in the mixing area between the inner and outer mixing cylinders.
[0011] Furthermore, the connecting plate is also equipped with a power supply device and a cooperating module for providing power to the ultrasonic vibration component; the power supply device and the cooperating module rotate together with the mixing inner cylinder.
[0012] Furthermore, the upper end of the mixing outer cylinder is provided with a feeding pipe; the lower end of the mixing outer cylinder is provided with a funnel-shaped structure, and the bottom of the funnel-shaped structure is provided with a discharge pipe.
[0013] Furthermore, a circumferential semicircular groove is also installed between the fixed ring plate and the movable ring plate, and the upper and lower semicircular grooves form a circular groove, and a ball bearing is installed in the circular groove; the fixed ring plate and the movable ring plate rotate accordingly under the support of the ball bearing.
[0014] Furthermore, the ultrasonic vibration components on the mixing inner cylinder are arranged in five groups, one above the other, with six evenly spaced components in each group; and six circumferential ultrasonic vibration components are arranged at the bottom of the mixing inner cylinder.
[0015] Furthermore, a stirring motor is also installed on the wall of the mixing outer cylinder. The stirring motor is arranged horizontally, and the main shaft of the stirring motor extends into the mixing area. A vertical stirring rod is installed on the main shaft to stir the raw materials in the mixing area.
[0016] Furthermore, each stirring motor has three sets of stirring rods on its main shaft, and the stirring rods are evenly spaced within the mixing area.
[0017] Beneficial effects: This utility model has the following beneficial effects:
[0018] 1) In this device, the inner and outer cylinders form a mixing zone, and an ultrasonic vibration component can be installed in the inner mixing cylinder, aligned with the inner mixing zone. After various raw materials enter the mixing zone, the ultrasonic vibration component can vibrate the raw materials in the mixing zone to achieve the mixing purpose. The mixing of raw materials for the iron oxide electrode is completed by ultrasonic vibration, resulting in higher mixing quality and better efficiency.
[0019] 2) The mixing inner cylinder in this device is set separately from the mixing outer cylinder. The upper end of the mixing outer cylinder is provided with a fixed ring plate extending inward, while the upper end of the mixing inner cylinder is provided with a movable ring plate extending outward. The two ring plates are connected by a semi-circular groove to install corresponding balls. The fixed ring plate and the movable ring plate can move accordingly through the support of the balls, so the mixing inner cylinder can also rotate accordingly. Therefore, the mixing inner cylinder can be driven to rotate, thereby driving the ultrasonic vibration component to rotate. Thus, the raw materials in the mixing area can be mixed while the ultrasonic vibration component is rotating, leaving no dead corners and effectively improving mixing efficiency and quality.
[0020] 3) The rotation of the mixing inner cylinder in this device is achieved by the stirring motor above. The main shaft of the stirring motor is connected to the mixing inner cylinder as a whole through the connecting plate, so that the mixing inner cylinder can be rotated as a whole by the stirring motor. The connecting plate can also be used to install the power device for the whole rotation, such as a battery, or the necessary supporting modules for the ultrasonic vibration component, such as an inverter. The structure is very reasonable.
[0021] 4) In this device, a stirring motor is also installed on the wall of the mixing outer cylinder. The stirring motor is set horizontally and the main shaft extends into the mixing area. A stirring rod is installed in the mixing area. The mechanical stirring mechanism, together with the ultrasonic vibration component, achieves stirring in two aspects, which can effectively increase the stirring efficiency and quality, and the structure is more reasonable. Attached Figure Description
[0022] Figure 1 This is a structural diagram of the present utility model;
[0023] Figure 2 This is a structural diagram of the fixed ring plate and the movable ring plate in this utility model;
[0024] Figure 3 This is an installation diagram of the stirring motor in this utility model;
[0025] Figure 4 for Figure 3 Sectional view of AA;
[0026] The components include: an outer mixing cylinder 1; an inner mixing cylinder 2; a mixing zone 3; a fixed ring plate 4; a movable ring plate 5; an ultrasonic vibration component 6; a rotating mechanism 7; a main shaft 8; a connecting plate 9; a power device 10; a matching module 11; a feed pipe 12; a discharge pipe 13; a semi-circular groove 14; a ball bearing 15; a stirring motor 16; and a stirring rod 17. Detailed Implementation
[0027] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented under the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.
[0028] like Figure 1 As shown, a raw material mixing device for manufacturing iron oxide electrodes for lithium batteries includes a mixing outer cylinder 1, a mixing inner cylinder 2 located at the middle of the mixing outer cylinder 1, the mixing inner cylinder 2 having a U-shaped structure, and a raw material mixing area 3 left between the mixing inner cylinder 2 and the mixing outer cylinder 1. A fixed ring plate 4 extending inward is provided at the upper end of the mixing outer cylinder 1, while a movable ring plate 5 extending outward is provided at the upper end of the mixing inner cylinder 2. The movable ring plate 5 is placed on the fixed ring plate 4, so that the movable ring plate 5 and the mixing inner cylinder 2 can rotate accordingly.
[0029] An ultrasonic vibration component 6 is installed on the inner wall and bottom of the mixing inner cylinder 2. The sound wave emission direction of the ultrasonic vibration component 6 is aligned with the middle mixing area 3. A rotating mechanism 7 is also provided above the mixing inner cylinder 2. The main shaft 8 of the rotating mechanism 7 extends downward into the mixing inner cylinder 2. A connecting plate 9 is installed on the main shaft 8. The connecting plate 9 is fixed on the side wall of the mixing inner cylinder 2, thereby integrating the mixing inner cylinder 2 and the main shaft 8 into one unit.
[0030] Driven by the rotating mechanism 7, the mixing inner cylinder 2 can rotate inside the mixing outer cylinder 1, and correspondingly drive the ultrasonic vibration component 6 on the inner wall of the mixing inner cylinder 2 to rotate, thereby performing ultrasonic vibration mixing on the raw materials in the mixing area 3 between the mixing inner cylinder 2 and the mixing outer cylinder 1.
[0031] The connecting plate 9 is also equipped with a power supply device 10 for providing power to the ultrasonic vibration component 6 and a matching module 11; the power supply device 10 and the matching module 11 rotate together with the mixing inner cylinder 2.
[0032] The upper end of the mixing outer cylinder 1 is provided with a feed pipe 12; the lower end of the mixing outer cylinder 1 is provided with a funnel-shaped structure, and the bottom of the funnel-shaped structure is provided with a discharge pipe 13.
[0033] like Figure 2 As shown, a circumferential semicircular groove 14 is also installed between the fixed ring plate 4 and the movable ring plate 5. The upper and lower semicircular grooves 14 form a circular groove, and a ball bearing 15 is installed in the circular groove. The fixed ring plate 4 and the movable ring plate 5 rotate accordingly under the support of the ball bearing 15.
[0034] The ultrasonic vibration components 6 on the mixing inner cylinder 2 are arranged in five groups, one above the other, with six evenly spaced components in each group; and six circumferential ultrasonic vibration components 6 are arranged at the bottom of the mixing inner cylinder 2.
[0035] like Figure 3 and Figure 4 As shown, a stirring motor 16 is also installed on the wall of the mixing outer cylinder 1. The stirring motor 16 is arranged horizontally, and the main shaft 8 of the stirring motor 16 extends into the mixing area 3. A vertical stirring rod 17 is installed on the main shaft 8, and the raw materials in the mixing area 3 are stirred by the stirring rod 17.
[0036] Each stirring motor 16 has three sets of stirring rods 17 on its main shaft 8, and the stirring rods 17 are evenly spaced in the mixing zone 3.
[0037] The working principle of this device is as follows: The specific structure of this device consists of a mixing inner cylinder and a mixing outer cylinder, and the mixing area is formed between the inner and outer cylinders. Then, an ultrasonic vibration component can be installed in the mixing inner cylinder, aligned with the inner mixing area. After various raw materials enter the mixing area, the ultrasonic vibration component can vibrate the raw materials in the mixing area to achieve the mixing purpose. The mixing of raw materials for iron oxide electrodes is completed by ultrasonic vibration, resulting in higher mixing quality and better efficiency.
[0038] Furthermore, the inner mixing cylinder of this device is separately configured from the outer mixing cylinder. The upper end of the outer mixing cylinder is provided with a fixed ring plate extending inward, while the upper end of the inner mixing cylinder is provided with a movable ring plate extending outward. The two ring plates are connected by a semi-circular groove to install corresponding ball bearings. The ball bearings support the fixed ring plate and the movable ring plate to move accordingly, so the inner mixing cylinder can also rotate accordingly. This rotation of the inner mixing cylinder, in turn, drives the ultrasonic vibration component to rotate. Thus, the raw materials in the mixing area can be mixed while the ultrasonic vibration component is rotating, leaving no dead corners and effectively improving mixing efficiency and quality.
[0039] The rotation of the mixing inner cylinder in this device is achieved by the stirring motor above. The main shaft of the stirring motor is connected to the mixing inner cylinder via a connecting plate, so that the mixing inner cylinder can be rotated as a whole by the stirring motor. The connecting plate can also be used to install the power device for the whole rotation, such as a battery, or the necessary supporting modules for the ultrasonic vibration component, such as an inverter. The structure is very reasonable.
[0040] This device also includes a stirring motor installed on the wall of the mixing outer cylinder. The stirring motor is positioned horizontally with its main shaft extending into the mixing area. A stirring rod is installed in the mixing area. The mechanical stirring mechanism, in conjunction with the ultrasonic vibration component, achieves stirring from both sides, which can effectively increase stirring efficiency and quality, resulting in a more rational structure.
[0041] The above-described specific embodiments are merely preferred embodiments of this utility model and are not intended to limit the implementation of this utility model or the scope of the claims. All equivalent changes and modifications made in accordance with the scope of protection of this utility model patent application should be included within the scope of this utility model patent application.
Claims
1. A raw material mixing apparatus for manufacturing iron oxide electrodes for lithium batteries, characterized in that: The system includes an outer mixing cylinder (1), an inner mixing cylinder (2) located at the middle of the outer mixing cylinder (1), the inner mixing cylinder (2) having a U-shaped structure, and a mixing area (3) for raw materials between the inner mixing cylinder (2) and the outer mixing cylinder (1). The upper end of the outer mixing cylinder (1) is provided with a fixed ring plate (4) extending inward, while the upper end of the inner mixing cylinder (2) is provided with a movable ring plate (5) extending outward. The movable ring plate (5) is placed on the fixed ring plate (4) so that the movable ring plate (5) and the inner mixing cylinder (2) can rotate accordingly. The inner wall and bottom of the mixing inner cylinder (2) are equipped with ultrasonic vibration components (6). The sound wave emission direction of the ultrasonic vibration components (6) is aligned with the middle mixing area (3). A rotating mechanism (7) is also provided above the mixing inner cylinder (2). The main shaft (8) of the rotating mechanism (7) extends downward into the mixing inner cylinder (2). A connecting plate (9) is installed on the main shaft (8). The connecting plate (9) is fixed on the side wall of the mixing inner cylinder (2), thereby integrating the mixing inner cylinder (2) and the main shaft (8) into one unit. Driven by the rotating mechanism (7), the mixing inner cylinder (2) can rotate in the mixing outer cylinder (1), and correspondingly drive the ultrasonic vibration component (6) on the inner wall of the mixing inner cylinder (2) to rotate, thereby performing ultrasonic vibration mixing on the raw materials in the mixing area (3) between the mixing inner cylinder (2) and the mixing outer cylinder (1).
2. The raw material mixing device for manufacturing iron oxide electrodes for lithium batteries according to claim 1, characterized in that: The connecting plate (9) is also equipped with a power device (10) for providing power to the ultrasonic vibration component (6) and a matching module (11); the power device (10) and the matching module (11) rotate together with the mixing inner cylinder (2).
3. The raw material mixing device for manufacturing iron oxide electrodes for lithium batteries according to claim 1, characterized in that: The upper end of the mixing outer cylinder (1) is provided with a feeding pipe (12); the lower end of the mixing outer cylinder (1) is provided with a funnel-shaped structure, and the bottom of the funnel-shaped structure is provided with a discharge pipe (13).
4. The raw material mixing device for manufacturing iron oxide electrodes for lithium batteries according to claim 1, characterized in that: A circumferential semicircular groove (14) is also installed between the fixed ring plate (4) and the movable ring plate (5). The upper and lower semicircular grooves (14) form a circular groove, and a ball bearing (15) is installed in the circular groove. The fixed ring plate (4) and the movable ring plate (5) rotate in a corresponding manner under the support of the ball bearing (15).
5. The raw material mixing device for manufacturing iron oxide electrodes for lithium batteries according to claim 1, characterized in that: The ultrasonic vibration components (6) on the mixing inner cylinder (2) are arranged in five groups, one above the other, and each group is arranged with six evenly spaced components; and the bottom of the mixing inner cylinder (2) is provided with six circumferential ultrasonic vibration components (6).
6. The raw material mixing device for manufacturing iron oxide electrodes for lithium batteries according to claim 1, characterized in that: A stirring motor (16) is also installed on the wall of the mixing outer cylinder (1). The stirring motor (16) is arranged horizontally, and the main shaft (8) of the stirring motor (16) extends into the mixing area (3). A vertical stirring rod (17) is installed on the main shaft (8). The raw materials in the mixing area (3) are stirred by the stirring rod (17).
7. A raw material mixing apparatus for manufacturing iron oxide electrodes for lithium batteries according to claim 6, characterized in that: Each stirring motor (16) has three sets of stirring rods (17) on its main shaft (8), and the stirring rods (17) are evenly spaced in the mixing area (3).