Classifying screening machine special for hard carbon processing
By incorporating multiple screening screens, drying devices, and sensors into the hard carbon grading screen, combined with vibration and drying processes, the problem of hard carbon particle adhesion was solved, achieving effective grading and drying of hard carbon and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN BISIDI BATTERY MATERIAL CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-19
AI Technical Summary
In existing hard carbon grading screens, incompletely dried hard carbon particles tend to adhere to the inner wall and screen mesh during use, leading to blockages and low production efficiency.
A grading screen specifically designed for hard carbon processing was designed, which includes multiple inclined screening screens, a drying device, and humidity and temperature sensors. By combining vibration and drying devices, the hard carbon particles are ensured to be dry and adhesion is prevented during the screening process.
It achieves effective grading and drying of hard carbon particles, reduces clogging, and improves production efficiency and screening effect.
Smart Images
Figure CN224253442U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of screening technology, and more specifically, relates to a grading screening machine specifically for hard carbon processing. Background Technology
[0002] Hard carbon refers to carbon that is difficult to graphitize. It is a commonly used negative electrode material in sodium-ion batteries and has advantages such as suitable working voltage, low cost, and suitability for large-scale production.
[0003] Before using hard carbon materials as raw materials for the next stage of sodium-ion battery production, the hard carbon materials need to be screened to obtain hard carbon materials of different particle sizes according to requirements. However, existing hard carbon grading screening machines have some drawbacks in use. For example, compared with other raw materials, hard carbon easily absorbs moisture from the air, which can cause incompletely dried hard carbon particles to adhere to the inner wall and screen of the grading screening machine, resulting in screen blockage and low production efficiency. Utility Model Content
[0004] In response to the deficiencies or improvement needs of existing technologies, this application provides a grading screen specifically for hard carbon processing, which aims to solve the problem that incompletely dried hard carbon particles easily adhere to the inner wall and screen of the grading screen during screening operations.
[0005] This application provides a grading sieve machine specifically for hard carbon processing, comprising a machine body, wherein:
[0006] The top of the machine body is provided with a feed inlet. Multiple screening screens are arranged at intervals along the height direction inside the machine body, and the screen aperture of the multiple screening screens gradually decreases from top to bottom. The bottom of the machine body is provided with a main discharge port corresponding to the bottommost screening screen. The side walls of the machine body are provided with side discharge ports corresponding to the remaining screening screens.
[0007] The machine body is also equipped with a drying device for drying hard carbon particles inside the machine body, a humidity sensor for detecting the humidity inside the machine body, a temperature sensor for detecting the temperature inside the machine body, and a vibration device for driving the machine body to vibrate.
[0008] With the above-described technical solution conceived in this application, when using this grading and screening machine, hard carbon raw material is fed into the machine body through the feed inlet. By activating the vibration device and drying device, the vibration device drives the machine body to vibrate, so that the hard carbon particles are graded and screened through multiple screening screens. Finally, dry hard carbon materials of different particle sizes are collected through various side discharge ports and the main receiving port at the bottom. At the same time, based on the detection of temperature and humidity sensors, the drying device is activated to dry the hard carbon particles. The drying effect of the drying device ensures that the hard carbon particles are relatively dry and do not easily adhere to the inner wall and screens of the grading and screening machine.
[0009] As a further preferred embodiment, the screening screen is inclinedly disposed within the machine body, and the inclined lower end of the previous screening screen is adjacent to the inclined upper end of the next adjacent screening screen.
[0010] As a further preferred embodiment, the drying device includes an electric heating element disposed on the top wall of the machine body.
[0011] As a further preferred embodiment, the drying device includes a plurality of heating plates spaced apart below the sieve screen.
[0012] As a further preferred embodiment, the heating plate has an internally built-in electric heating wire; or, the heating plate has an internally built-in medium channel for the flow of the heating medium.
[0013] As a further preferred embodiment, the heating plate includes inclined guide plates and inverted U-shaped plates, and multiple inclined guide plates and inverted U-shaped plates are alternately arranged along the length direction of the screening mesh.
[0014] As a further preferred embodiment, the inverted U-shaped plate includes a first long side portion, an arc-shaped arched portion, and a second long side portion, which are smoothly connected sequentially.
[0015] As a further preferred embodiment, the surface of the arc-shaped arched portion is provided with a number of ventilation holes.
[0016] As a further preferred embodiment, the machine body is provided with a cleaning device for cleaning the screening screen.
[0017] As a further preferred embodiment, the grading screen also includes support legs and shock absorbers, with the machine body connected to the support legs via the shock absorbers.
[0018] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages:
[0019] 1. This screening machine classifies and screens hard carbon particles by setting multiple screening screens. It collects dry hard carbon materials of different particle sizes through various side discharge ports and the main receiving port at the bottom. In addition, the screening machine is also equipped with a drying device to ensure that the hard carbon particles are relatively dry and do not easily adhere to the inner wall and screens of the grading screening machine.
[0020] 2. This screening machine generates heat energy that diffuses into the machine body by setting inclined guide plates and inverted U-shaped plates with heating function below the screen, which dries the hard carbon particles that enter the machine body. At the same time, the hard carbon particles that fall from the screen can fall down onto the surface of the inclined guide plates and inverted U-shaped plates, and the surface of the hard carbon particles is baked by the inclined guide plates and inverted U-shaped plates, so that the surface of the hard carbon particles is further dried. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the grading screening machine provided in an embodiment of this application;
[0022] Figure 2 This is a schematic diagram of another embodiment of the grading screening machine provided in this application;
[0023] Figure 3 This is a schematic diagram of the inverted U-shaped plate provided in the embodiments of this application.
[0024] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:
[0025] 1. Machine body; 2. Feed inlet; 3. Screening screen; 4. Main discharge outlet; 5. Side discharge outlet; 6. Drying device; 6-1. Inclined guide plate; 6-2. Inverted U-shaped plate; 6-2a. First long side; 6-2b. Arc-shaped arched part; 6-2c. Second long side; 6-2d. Ventilation hole; 7. Humidity sensor; 8. Temperature sensor; 9. Vibration device; 10. Shock absorber; 11. Cleaning device; 12. Control terminal; 13. Support legs. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0027] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.
[0028] This application discloses a grading sieve machine specifically for hard carbon processing. (Refer to...) Figure 1 The grading and screening machine for hard carbon processing includes a machine body 1, wherein: a feed inlet 2 is provided at the top of the machine body 1, and multiple screening screens 3 are arranged at intervals along the height direction inside the machine body 1, with the screen aperture of the multiple screening screens 3 decreasing from top to bottom; a main discharge port 4 is provided at the bottom of the machine body 1 corresponding to the bottommost screening screen 3; and side discharge ports 5 are provided on the side walls of the machine body 1 corresponding to the remaining screening screens 3, with the inner bottom wall of the side discharge port 5 flush with the upper surface of the corresponding screening screen 3; in addition, the machine body 1 is also provided with a drying device 6 for drying the hard carbon particles inside the machine body 1, a humidity sensor 7 for detecting the humidity inside the machine body 1, a temperature sensor 8 for detecting the temperature inside the machine body 1, and a vibration device 9 for driving the vibration of the machine body 1.
[0029] In this design, when using this grading and screening machine, hard carbon raw material is fed into the machine body 1 through the feed inlet 2. By activating the vibration device 9 and the drying device 6, the vibration device 9 drives the machine body 1 to vibrate, so that the hard carbon particles are graded and screened through multiple screening screens 3. Finally, dry hard carbon materials of different particle sizes are collected through various side discharge ports 5 and the main receiving port at the bottom. At the same time, based on the detection of temperature sensor 8 and humidity sensor 7, the drying device 6 is activated to dry the hard carbon particles. Through the drying effect of the drying device 6, it is ensured that the hard carbon particles are relatively dry and do not easily adhere to the inner wall and screens of the grading and screening machine.
[0030] Specifically, in some embodiments, the screening screen 3 inside the machine body 1 is inclined, and the inclined lower end of the previous screening screen 3 is adjacent to the inclined upper end of the next adjacent screening screen 3. And each side discharge port 5 is located at the inclined lower end of the corresponding screening screen 3.
[0031] Under this design, when using this grading screen, oversized hard carbon particles that are difficult to screen off the upper surface of the screening screen 3 can gradually move to the inclined lower end of the screening screen 3 under the action of gravity, and then be smoothly discharged through the side discharge port 5, thus realizing the smooth collection of hard carbon particles and improving production efficiency.
[0032] Furthermore, such as Figure 1 As shown, in some embodiments, the drying device 6 includes an electric heating tube disposed on the top wall of the machine body 1. The heating tube is provided with a heating wire inside, which generates heat by heating with an electric current to dry the hard carbon particles inside the machine body 1.
[0033] Furthermore, in some embodiments, the drying device 6 includes a plurality of heating plates spaced apart below the screening screen 3. The heating plates have built-in electric heating wires; or, the heating plates have built-in medium channels for the flow of a heating medium, the heating medium including but not limited to hot water and hot air.
[0034] Preferably, in some embodiments, a heating plate is provided below each of the screening screens 3. This arrangement results in a more uniform distribution of heating nodes, creating a good drying environment within the machine body 1 and providing a more balanced high-temperature heating environment for the hard carbon. Of course, in some embodiments, a heating plate may also be provided below the entire assembly of multiple screening screens 3, that is, a heating plate may be provided below the bottommost screening screen 3.
[0035] Further preferred, such as Figure 2 As shown, the heating plate includes inclined guide plates 6-1 and inverted U-shaped plates 6-2. Multiple inclined guide plates 6-1 and inverted U-shaped plates 6-2 are alternately arranged along the length direction of the screening mesh 3. Furthermore, the length direction of the inclined guide plates 6-1 and inverted U-shaped plates 6-2 (i.e.,...) Figure 3The two ends (in the direction indicated by the middle arrow A) are connected to the inner wall of the body 1 respectively, so that the inclined guide plate 6-1 and the inverted U-shaped plate 6-2 span the inside of the body 1.
[0036] Under this design, on the one hand, since the inclined guide plate 6-1 and the inverted U-shaped plate 6-2 have heating functions, the heat generated at the inclined guide plate 6-1 and the inverted U-shaped plate 6-2 can diffuse into the interior of the machine body 1 to dry the hard carbon particles that enter the interior of the machine body 1; on the other hand, the hard carbon particles that fall from the screening screen 3 can fall downwards onto the surface of the inclined guide plate 6-1 and the inverted U-shaped plate 6-2, and the inclined guide plate 6-1 and the inverted U-shaped plate 6-2 guide and bake the surface of the hard carbon particles, so that the surface of the hard carbon particles is further dried, which helps to reduce the phenomenon of screen blockage and improve the screening effect.
[0037] As a preferred option, such as Figure 2 and Figure 3 As shown, the inverted U-shaped plate 6-2 includes a first long side portion 6-2a, an arc-shaped arched portion 6-2b, and a second long side portion 6-2c, which are smoothly connected sequentially. The outer edge of the first long side portion 6-2a, away from the arc-shaped arched portion 6-2b, is located below a nearby inclined guide plate 6-1, and the outer edge of the second long side portion 6-2c, away from the arc-shaped arched portion 6-2b, is located below another nearby inclined guide plate 6-1.
[0038] In this design, hard carbon particles can slide down the surface of the inclined guide plate 6-1 to the surface of the inverted U-shaped plate 6-2, and then slide down the inverted U-shaped plate 6-2 to the next screening screen 3 for screening, achieving multiple surface drying of the particles and improving the drying effect. Generally speaking, the mesh of the top screening screen 3 is larger, and it is usually not necessary to set a heating plate on the top of this screening screen 3. If necessary, such as when the moisture content of the hard carbon particles to be screened is too high, a heating plate can also be set on the top of the uppermost screening screen 3.
[0039] Furthermore, in some embodiments, the surface of the arc-shaped arched portion 6-2b is provided with a plurality of vent holes 6-2d, the openings of which are relatively large to allow hard carbon particles to pass through. With this design, by providing the vent holes 6-2d, the gas inside the machine body 1 can be ensured to diffuse smoothly, preventing upward-evaporating gas from accumulating on the lower surface of the arc-shaped arched portion 6-2b. In actual use, the gas generated inside the machine body 1 can be discharged from the machine body 1 through the feed inlet 2 or other parts. In some embodiments, an additional vent is provided at the top of the machine body 1, or a negative pressure suction device is connected to the top of the machine body 1.
[0040] Furthermore, in some embodiments, the grading screen also includes support legs 13 and shock absorbers 10. The machine body 1 is connected to the support legs 13 via the shock absorbers 10. The inner bottom wall of the machine body 1 has a guide plate to guide the material falling to the bottom of the machine body 1 toward the main discharge port 4. The vibration device 9 includes, but is not limited to, a vibration motor.
[0041] Furthermore, such as Figure 1 As shown, in some embodiments, the machine body 1 is provided with a cleaning device 11 for cleaning the screening screen 3. The cleaning device 11 can be used periodically to clean the screening screen 3 to prevent the screening screen 3 from clogging. The cleaning mechanism includes, but is not limited to, a small bag filter dust collector using pulse backflushing.
[0042] Generally, the bag filter is preferably installed at the top of the machine body 1. When using the bag filter, it uses negative pressure to adsorb the fine powder in the hard carbon particles onto the filter bags, thus cleaning the fine powder on the screening screen 3 and preventing the fine powder from accumulating and caking over time. After the bag filter has been running for a period of time, it intermittently uses positive pressure to impact the internal filter bags, causing the fine powder to fall from the filter bags back into the machine body 1. At this time, the fine powder is relatively loose, and the vibration device 9 drives the machine body 1 to vibrate, which can screen and collect the fine powder in the hard carbon particles.
[0043] Furthermore, in some embodiments, the grading screen also includes a control terminal 12, which is electrically connected to a temperature sensor 8, a humidity sensor 7, a vibration device 9, a drying device 6, etc., and has a control panel. In actual use of this grading screen, the temperature sensor 8 and the humidity sensor 7 detect the temperature and humidity inside the machine body 1, respectively, and feed the detection data back to the control terminal. Based on the detection results of the temperature sensor 8 and the humidity sensor 7, the user can control the vibration device 9 and the drying device 6 by operating the control terminal 12 to achieve precise control of the heating temperature and the sieving process. The control principle of the control terminal 12 is existing technology and will not be elaborated upon here.
[0044] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.
[0045] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.
[0046] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0048] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A sizing screen machine dedicated to hard carbon processing, characterized by, Including the body (1), wherein: The top of the machine body (1) is provided with a feed inlet (2), and multiple screening screens (3) are arranged at intervals along the height direction inside the machine body (1). The screen aperture of the multiple screening screens (3) decreases from top to bottom. The bottom of the machine body (1) is provided with a main discharge port (4) corresponding to the bottommost screening screen (3), and the side walls of the machine body (1) are provided with side discharge ports (5) corresponding to the remaining screening screens (3). The machine body (1) is also provided with a drying device (6) for drying hard carbon particles, a humidity sensor (7) for detecting the humidity inside the machine body (1), a temperature sensor (8) for detecting the temperature inside the machine body (1), and a vibration device (9) for driving the machine body (1) to vibrate. The drying device (6) includes multiple heating plates spaced apart below the sieve screen (3); the heating plates include inclined guide plates (6-1) and inverted U-shaped plates (6-2), and multiple inclined guide plates (6-1) and inverted U-shaped plates (6-2) are alternately arranged along the length of the sieve screen (3); The inverted U-shaped plate (6-2) includes a first long side (6-2a), an arc-shaped arched part (6-2b), and a second long side (6-2c), which are smoothly connected in sequence; the surface of the arc-shaped arched part (6-2b) is provided with a plurality of ventilation holes (6-2d).
2. The sizing screen machine dedicated to hard carbon processing according to claim 1, wherein, The screening screen (3) is inclinedly arranged inside the machine body (1), and the inclined lower end of the previous screening screen (3) is adjacent to the inclined upper end of the next screening screen (3).
3. The sizing screen machine dedicated for hard carbon processing according to claim 1, wherein, The drying device (6) includes an electric heating tube disposed on the top wall inside the machine body (1).
4. The sizing screen machine dedicated for hard carbon processing according to claim 1, wherein, The heating plate has an internal heating wire; or, the heating plate has an internal medium channel for the flow of the heating medium.
5. The hard carbon processing dedicated sizing screen machine according to any one of claims 1 to 4, wherein, The machine body (1) is equipped with a cleaning device (11) for cleaning the screening screen (3).
6. The hard carbon processing dedicated sizing screen machine according to any one of claims 1 to 4, wherein, The grading screening machine also includes support legs (13) and shock absorbers (10), and the machine body (1) is connected to the support legs (13) through the shock absorbers (10).