Multifunctional treatment equipment for improving tap density of biomass hard carbon material

Abstract

The utility model discloses multifunctional processing equipment for improving the tap density of a biomass hard carbon material. The multifunctional processing equipment comprises a vibration cleaning device, a heating drying device and a kneading device which are sequentially arranged in the material conveying direction. The vibration cleaning device comprises a first conveying belt, a cleaning discharging port, a vibration motor and a cleaning tank. The first conveying belt is arranged in the cleaning tank and located above the tank bottom wall of the cleaning tank, a plurality of screen holes are formed in the conveying face of the first conveying belt, and the diameter of the screen holes is smaller than the particle size of materials. The equipment is compact in structure and high in automation degree, can efficiently improve the kneading density of the biomass hard carbon material, and is suitable for industrial large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of biomass hard carbon material preparation technology. Specifically, it relates to a multifunctional processing device for improving the tap density of biomass hard carbon materials. Background Technology

[0002] The tap density of biomass hard carbon refers to the mass per unit volume of biomass hard carbon powder after being tapped in a container under specified conditions. A higher tap density indicates better packing properties of the biomass hard carbon, resulting in a higher loading of negative electrode active material in lithium-ion batteries, thus increasing the battery capacity density per unit volume. Therefore, improving the tap density of biomass hard carbon is of great significance for optimizing its performance and industrial applications.

[0003] Mixing biomass hard carbon with other high-density materials and then kneading it can improve the tap density of biomass hard carbon. However, most existing biomass hard carbon kneading equipment has limited functionality, only capable of kneading and lacking features such as washing or drying, making it impossible to achieve multi-step integrated operation. The material needs to be transferred multiple times, which not only increases processing difficulty and time but also easily introduces impurities, affecting the quality of the final product and failing to meet the needs of industrial-scale production. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to provide a multifunctional processing device that integrates cleaning, drying and kneading functions to improve the tap density of biomass hard carbon materials, realizes continuous operation from preliminary cleaning to efficient kneading of materials, and greatly improves production efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A multifunctional processing device for improving the tap density of biomass hard carbon materials includes a vibration cleaning device, a heating and drying device, and a kneading device arranged sequentially along the material conveying direction; wherein:

[0007] The vibrating cleaning device includes a first conveyor belt, a cleaning outlet, a vibrating motor, and a cleaning tank. The first conveyor belt is disposed inside the cleaning tank and located above the bottom wall of the tank. The vibrating motor is mounted on the first conveyor belt. The cleaning outlet is arranged adjacent to the discharge end of the first conveyor belt, and is located above the feed end of the heating and drying device and below the discharge end of the first conveyor belt. The conveying surface of the first conveyor belt is provided with multiple sieve holes, the aperture of which is smaller than the particle size of the material. The first conveyor belt is located above the bottom wall of the cleaning tank, while the outlet is located adjacent to the bottom wall of the cleaning tank. This design facilitates the discharge of cleaning liquid and prevents the cleaning liquid from accumulating in the cleaning tank and flooding it.

[0008] The heating and drying device includes a second conveyor belt, a heating hood, and a drying outlet; the feed end of the heating and drying device is the feed end of the second conveyor belt; the heating hood covers the second conveyor belt; and the drying outlet is located at the discharge end of the second conveyor belt.

[0009] The kneading device includes a box, a conveying rod, and a stirring rod; a feed inlet is provided on the top of the box, which is located below the drying outlet; a kneading outlet is provided at the bottom of the side wall of the box, which is located below the conveying rod; the conveying rod and the stirring rod are parallel to each other and extend along the material conveying direction, and both the conveying rod and the stirring rod are located in the inner cavity of the box.

[0010] The aforementioned multifunctional processing equipment for improving the tap density of biomass hard carbon materials includes a vibration cleaning device that further comprises a liquid outlet. The liquid outlet is in fluid communication with the inner cavity of the cleaning tank and is located near the bottom wall of the cleaning tank.

[0011] The aforementioned multifunctional processing equipment for improving the tap density of biomass hard carbon materials includes a kneading device that further comprises a first rotating motor and a second rotating motor. The output end of the first rotating motor is connected to the conveying rod, and the output end of the second rotating motor is connected to the stirring rod.

[0012] The aforementioned multifunctional processing equipment for improving the tap density of biomass hard carbon materials includes two stirring rods. The two ends of each stirring rod are rotatably connected to the two ends of the housing. A transmission gear is installed on the output end of a second rotating motor. Gears are also installed on the ends of both stirring rods adjacent to the second rotating motor and mesh with the transmission gear. This dual-stirring-rod design improves stirring efficiency. The second rotating motor drives the two stirring rods through the transmission gears, achieving simultaneous rotation of the stirring rods at the same frequency and ensuring uniform stirring.

[0013] The aforementioned multifunctional processing equipment for improving the tap density of biomass hard carbon materials features multiple stirring teeth on each stirring rod. These stirring teeth are U-shaped, with the U-shaped openings of the teeth on the same stirring rod facing the same direction. Between two stirring rods, the stirring teeth are staggered, and the U-shaped openings of the teeth face each other. This U-shaped tooth design increases the stirring area and stirring force, improving the stirring effect. Simultaneously, the staggered distribution of the stirring teeth achieves staggered stirring, which helps improve the uniformity of stirring. Furthermore, the facing orientation of the U-shaped stirring tooth openings on adjacent stirring rods helps save space.

[0014] The aforementioned multifunctional processing equipment for improving the tap density of biomass hard carbon materials also has an air outlet on the top of the housing.

[0015] The aforementioned multifunctional processing equipment for increasing the tap density of biomass hard carbon materials has two feed inlets, which are adjacent to each other. The kneading device described above has high kneading efficiency, and having two feed inlets on the kneading device is beneficial for adapting to different output and production speed requirements. For example, when it is necessary to increase output and speed up production, two sets of vibrating cleaning devices and heating drying devices can be used. Both sets of devices simultaneously clean and dry the material, and the same kneading device is used for kneading, which improves production efficiency and saves production costs. Furthermore, for small quantities of material that does not require cleaning, it can be directly fed into the kneading device through one feed inlet, while the other feed inlet is used for materials that need cleaning, which also improves production efficiency. Having the two feed inlets adjacent to each other helps ensure the uniformity of the material output from the kneading device. If the two feed inlets are far apart, the degree of kneading of the material entering from different feed inlets will be different, or the uncleaned material that needs to participate in kneading will have difficulty fully contacting and mixing with the cleaned material.

[0016] The aforementioned multifunctional processing equipment for increasing the tap density of biomass hard carbon materials includes a kneading device that further comprises an instrument panel for displaying the air pressure and temperature within the chamber. The instrument panel design facilitates real-time monitoring of the air pressure and temperature within the chamber. Excess high-temperature, high-pressure gas within the chamber can be promptly discharged through the air outlet on the chamber, thereby reducing the air pressure and ensuring the stability and safety of the kneading process.

[0017] The aforementioned multifunctional processing equipment for improving the tap density of biomass hard carbon materials features multiple parallel partitions on the conveying surface of the heating and drying device. The angle α between the partitions and the conveying direction of the second conveyor belt is 60°–90°. This partition design improves the heating and drying effect, preventing material accumulation and uneven drying. Simultaneously, the angle between the partitions and the conveyor belt optimizes the material conveying and drying process.

[0018] The aforementioned multifunctional processing equipment for improving the tap density of biomass hard carbon materials also includes a spraying device, which is arranged above the first conveyor belt.

[0019] The technical solution of this utility model has achieved the following beneficial technical effects:

[0020] 1. The multifunctional processing equipment provided by this utility model features a vibration cleaning device that combines a conveyor belt with a vibration motor, which allows the material to be fully dispersed and rolled during the conveying process, effectively improving cleaning efficiency and quality. The heating and drying device uses a structure that combines a heating hood with a conveyor belt, achieving uniform heating and rapid drying of the wet and easily accumulated material after cleaning, thus improving drying efficiency. The kneading device uses a design that combines synchronous stirring with a conveyor rod. Through the staggered arrangement of the stirring teeth and the pushing action of the conveyor rod, it achieves full stirring and uniform mixing of the material, which is beneficial to improving the tap density of biomass hard carbon materials.

[0021] 2. The multifunctional processing equipment provided by this utility model integrates vibration cleaning, heating and drying and kneading functions into one, realizing continuous operation of biomass hard carbon materials from preliminary cleaning to efficient kneading, greatly simplifying the production process and reducing processing difficulty and time cost. Attached Figure Description

[0022] Figure 1 A schematic diagram of the multifunctional processing device in Embodiment 1 of this utility model;

[0023] Figure 2 A schematic diagram of the vibration cleaning device in Embodiment 1 of this utility model;

[0024] Figure 3 A schematic diagram of the heating and drying device in Embodiment 1 of this utility model;

[0025] Figure 4 A schematic diagram of the kneading device in Embodiment 1 of this utility model;

[0026] Figure 5 A top view of the first conveyor belt in Embodiment 1 of this utility model;

[0027] Figure 6 A top view of the second conveyor belt in Embodiment 2 of this utility model.

[0028] The reference numerals in the figure are as follows: 1-Vibration cleaning device; 101-First conveyor belt; 102-Cleansing outlet; 103-Vibration motor; 104-Cleansing tank; 105-Liquid outlet; 106-Sieve hole; 2-Heating and drying device; 201-Second conveyor belt; 202-Heating cover; 203-Drying outlet; 204-Separator; 3-Kneading device; 301-Box body; 3011-Inlet; 3012-Kneading outlet; 3013-Air outlet; 302-First rotating motor; 303-Second rotating motor; 304-Conveying rod; 305-Stirring rod; 3051-Stirring teeth; 306-Instrument panel; 307-Transmission gear. Detailed Implementation

[0029] Example 1

[0030] like Figure 1 As shown, this embodiment provides a multifunctional processing device for improving the tap density of biomass hard carbon materials, including a vibration cleaning device 1, a heating and drying device 2, and a kneading device 3. The device has a compact structure and can achieve multifunctional processing of cleaning, drying, and kneading.

[0031] Equipment structure:

[0032] 1. Vibration cleaning device:

[0033] like Figure 2 As shown, the vibrating cleaning device 1 includes a first conveyor belt 101, a cleaning outlet 102, a vibrating motor 103, and a cleaning tank 104.

[0034] The first conveyor belt 101 is installed inside the cleaning tank 104, located above the bottom wall of the tank. For example... Figure 5 As shown, the conveying surface of the first conveyor belt 101 is provided with a plurality of sieve holes 106. The aperture of the sieve holes 106 is smaller than the particle size of the material, and is used to separate the material to be cleaned from the cleaning liquid. The front end of the first conveyor belt 101 in the conveying direction is the discharge end, and the rear end is the feed end, that is, the first conveyor belt transports the material from the feed end to the discharge end.

[0035] The vibrating motor 103 is installed on the first conveyor belt 101. The vibrating motor 103 provides vibration force, which makes the material on the first conveyor belt 101 fully dispersed and rolled during the conveying process, and fully contacted with the cleaning liquid, thereby facilitating the removal of impurities in the hard carbon.

[0036] A cleaning outlet 102 is connected to the cleaning tank 104. The cleaning outlet 102 is arranged adjacent to the discharge end of the first conveyor belt 101, and is located above the feed end of the heating and drying device 2 and below the discharge end of the first conveyor belt 101. The cleaned material enters the heating and drying device 2 through the cleaning outlet 102.

[0037] In addition, a liquid outlet 105 is provided on the cleaning tank, and the liquid outlet 105 is in fluid communication with the inner cavity of the cleaning tank 104. The liquid outlet 105 is arranged near the bottom wall of the cleaning tank 104 and is located on the feed end side of the first conveyor belt 101. A spraying device is also arranged above the first conveyor belt 101, which is used to spray cleaning liquid onto the material on the first conveyor belt 101.

[0038] 2. Heating and drying device:

[0039] like Figure 3 As shown, the heating and drying device 2 includes a second conveyor belt 201, a heating cover 202, and a drying outlet 203.

[0040] The feeding end of the heating and drying device 2 is the feeding end of the second conveyor belt 201. A heating hood 202 covers the second conveyor belt 201 and is used to heat and dry the material on the second conveyor belt 201. The drying outlet 203 is located at the discharge end of the second conveyor belt 201.

[0041] As the material is conveyed by the second conveyor belt 201, the heating hood dries the material, and during the drying process, the moisture in the material evaporates. The dried material is discharged from the drying outlet 203 located at the discharge end of the second conveyor belt 201 and enters the kneading device 3.

[0042] 3. Kneading device:

[0043] like Figure 4 As shown, the kneading device 3 includes a housing 301, a conveying rod 304, a stirring rod 305, a first rotating motor 302, and a second rotating motor 303.

[0044] The top of the housing 301 is provided with a feed inlet 3011 and an air outlet 3013. The feed inlet 3011 is located below the drying outlet 203, facilitating the entry of dried material into the housing 301. There are two feed inlets 3011, which are adjacent to each other. The air outlet 3013 is located at the top of the housing 301 and is used to discharge high-temperature, high-pressure gas from the housing 301. A kneading outlet 3012 is provided at the bottom of the side wall of the housing 301, and the kneading outlet is located at the forefront in the material conveying direction. Figure 4 (the far right).

[0045] Both the conveying rod 304 and the stirring rod 305 are located inside the housing 301, and are arranged parallel to the material conveying direction. The conveying rod is used to push the material towards the kneading discharge port 3012. The conveying rod 304 is driven by the first rotating motor 302.

[0046] Two stirring rods 305 are used to stir and knead the materials. The two ends of each stirring rod 305 are rotatably connected to the two ends of the housing 301. Each stirring rod 305 has multiple U-shaped stirring teeth 3051. The U-shaped openings of the stirring teeth 3051 on the same stirring rod 305 face the same direction, while the openings of the stirring teeth 3051 on different stirring rods 305 face opposite directions and are staggered. A transmission gear 307 is installed on the output end of a second rotating motor 303. The second rotating motor 303 drives the two stirring rods 305 through the transmission gear 307. Gears are installed on the ends of both stirring rods adjacent to the second rotating motor 303 and mesh with the transmission gear 307. The two stirring rods share one motor, allowing for synchronized stirring frequency. The staggered arrangement of the stirring teeth 3051 on the two stirring rods achieves staggered stirring, which helps improve the uniformity of stirring.

[0047] In addition, the kneading device housing 301 is equipped with an instrument panel 306 for displaying the internal temperature and air pressure of the housing.

[0048] The kneading device in this embodiment has two feed inlets, which is beneficial for adapting to different output and production speed requirements. For example, a vibration cleaning device and a heating and drying device can be added to this embodiment, that is, both heating and drying devices feed into the feed inlet 3011 simultaneously; or, some materials that do not need to be cleaned can be directly fed into the kneading device through the feed inlet 3011 (the cleaned and dried materials are fed into the other feed inlet 3011). It should be noted that the two feed inlets 3011 should be adjacent to each other. If the distance between the two feed inlets 3011 is too far, the materials fed into the kneading device from different feed inlets 3011 will be transported at different distances in the kneading device, and the degree of mixing and kneading will also be different. The uncleaned materials that need to be kneaded will not be able to fully contact and mix with the cleaned materials, ultimately resulting in a decrease in the uniformity of the materials output by the kneading device.

[0049] The working process of the multi-functional processing device in this embodiment is as follows:

[0050] First, the materials to be kneaded (containing biomass hard carbon and asphalt hard carbon, coal-based hard carbon powder, etc., used to increase the compaction density of biomass hard carbon) are fed onto the first conveyor belt 101 of the vibrating cleaning device 1. As the first conveyor belt 101 transports the materials to the heating and drying device 2, a spraying device sprays cleaning liquid onto the materials. Simultaneously, the vibrating motor 103 drives the conveyor belt to vibrate, causing the materials on the first conveyor belt 101 to roll and fully contact the cleaning liquid. The sieve holes 106 separate the cleaning liquid from the materials. After passing through the sieve holes, the cleaning liquid flows into the cleaning tank below the first conveyor belt and exits the cleaning tank 104 through the outlet 105.

[0051] After washing, the material enters the heating and drying device 2 from the washing outlet 102. In the heating and drying device 2, the material is conveyed by the second conveyor belt 201. During the conveying process on the second conveyor belt 201, the heating hood 202 efficiently dries the material. After the moisture in the material evaporates, the dried material is fed into the inlet of the kneading device 3 through the drying outlet 203. Then, driven by the second rotating motor, the two stirring rods in the kneading device rotate at the same frequency, and through their stirring teeth, the material is thoroughly stirred to ensure uniform mixing. Simultaneously, the conveying rod 304 in the kneading device pushes the biomass hard carbon material along the conveying direction. Finally, the uniformly mixed material is output from the kneading outlet 3012, thus obtaining high-compact density biomass hard carbon material.

[0052] Example 2

[0053] The multifunctional processing device in this embodiment is an improvement on the device in embodiment 1, with the addition of a spacer bar 204 to improve device performance and processing efficiency.

[0054] like Figure 6 As shown, the spacers 204 are disposed on the conveying surface of the second conveyor belt 201, and there are multiple spacers 204, which are parallel to each other.

[0055] In this embodiment, the angle α between the spacer 204 and the conveying direction of the second conveyor belt 201 is 75°. In other embodiments, the angle α may be any other value within the range of 60° to 90°.

[0056] Washed materials typically contain a certain amount of moisture, making them more prone to accumulation. The spacers 204 divide the material into multiple zones, preventing accumulation. Compared to materials without spacers 204, when the second conveyor belt surface is equipped with spacers 204, the material is effectively divided into multiple small zones, forming relatively independent material units. This significantly reduces contact and overlap between materials, thus lowering the likelihood of accumulation. When the material does not accumulate, its surface area exposed under the heating hood increases, improving moisture evaporation efficiency. Furthermore, the presence of the spacers 204 causes some disturbance to the material during transport, facilitating tumbling and dispersion, further increasing the exposed area of ​​the material under the heating hood.

[0057] The angle of the spacers 204 (60°–90° with the conveying direction of the second conveyor belt 201) also optimizes drying efficiency. When the angle is within this range, the material experiences some resistance during conveying, forcing it to distribute between the spacers 204 and preventing the moisture-containing material from slipping on the surface of the second conveyor belt, thus improving uniformity during conveying. This uniform distribution, combined with the expanded surface exposed area, effectively improves heat exchange efficiency and drying speed, making it particularly suitable for drying large batches of materials with high moisture content.

[0058] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A multifunctional treatment device for improving the tap density of a biomass hard carbon material, characterized by, The device comprises a vibration cleaning device (1), a heating and drying device (2) and a kneading device (3) arranged in sequence along the material conveying direction. The vibration cleaning device (1) comprises a first conveying belt (101), a cleaning discharge port (102), a vibration motor (103) and a cleaning tank (104); the first conveying belt (101) is arranged in the cleaning tank (104) and located above the tank bottom wall of the cleaning tank (104); the vibration motor (103) is installed on the first conveying belt (101); the cleaning discharge port (102) is arranged adjacent to the discharge end of the first conveying belt (101), located above the feeding end of the heating and drying device (2) and below the discharge end of the first conveying belt (101); a plurality of screen holes (106) are arranged on the conveying surface of the first conveying belt (101), and the aperture of the screen hole (106) is smaller than the particle size of the material; The heating and drying device (2) comprises a second conveying belt (201), a heating cover (202) and a drying discharge port (203); the feeding end of the heating and drying device (2) is the feeding end of the second conveying belt (201); the heating cover (202) covers the second conveying belt (201) from above; the drying discharge port (203) is arranged at the discharge end of the second conveying belt (201); The kneading device (3) comprises a box body (301), a conveying rod (304) and a stirring rod (305); the top of the box body (301) is provided with a feeding port (3011), which is located below the drying discharge port (203); the bottom of the side wall of the box body (301) is provided with a kneading discharge port (3012), which is located below the conveying rod (304); the conveying rod (304) and the stirring rod (305) are parallel to each other and extend along the material conveying direction, and both are located in the inner cavity of the box body (301).

2. The multifunctional treatment equipment for improving tap density of biomass hard carbon material according to claim 1, characterized in that, The vibration cleaning device (1) further comprises a liquid outlet (105) in fluid communication with the inner cavity of the cleaning tank (104), and the liquid outlet (105) is arranged adjacent to the bottom wall of the cleaning tank (104).

3. The multifunctional treatment equipment for improving tap density of biomass hard carbon material according to claim 1, characterized in that, The kneading device (3) further comprises a first rotating motor (302) and a second rotating motor (303), wherein the output end of the first rotating motor (302) is drivingly connected with the conveying rod (304), and the output end of the second rotating motor (303) is drivingly connected with the stirring rod (305).

4. The multifunctional treatment device for improving tap density of biomass hard carbon material according to claim 3, characterized in that, The number of the stirring rods (305) is two, and both ends of the two stirring rods (305) are rotatably connected with both ends of the box body (301); a transmission gear (307) is installed on the output end of the second rotating motor (303), and gears are installed on the end portions of the two stirring rods (305) adjacent to the second rotating motor (303) and meshed with the transmission gear (307).

5. The multifunctional treatment equipment for improving tap density of biomass hard carbon material according to claim 4, characterized in that, A plurality of stirring teeth (3051) are arranged on each stirring rod (305), the stirring teeth (3051) are in U shape, the U-shaped openings of the stirring teeth (3051) on the same stirring rod (305) are in the same direction; between two stirring rods (305), the stirring teeth (3051) are staggered, and the U-shaped openings of the stirring teeth (3051) are opposite to each other.

6. The multifunctional treatment device for improving tap density of biomass hard carbon material according to claim 5, characterized in that, The top of the box body (301) is also provided with an air outlet (3013).

7. The multifunctional treatment apparatus for improving tap density of biomass hard carbon material according to claim 1, wherein The number of the feeding ports (3011) is two, and the two feeding ports (3011) are adjacent to each other.

8. The multifunctional treatment apparatus for improving tap density of biomass hard carbon material according to claim 1, wherein The kneading device (3) further comprises a dashboard (306) for displaying the air pressure and temperature in the inner cavity of the box body (301).

9. The multifunctional treatment apparatus for improving tap density of biomass hard carbon material according to claim 1, wherein A plurality of parallel partition strips (204) are arranged on the conveying surface of the heating and drying device (2), and the included angle α between the partition strips (204) and the conveying direction of the second conveying belt (201) is 60°-90°.

10. The multifunctional treatment device for improving tap density of biomass hard carbon material according to any one of claims 1 to 9, characterized in that, The spraying device is arranged above the first conveying belt (101).

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