A particle fineness screening device for graphite pulverization

By introducing a vibrating screen and multi-stage screening filter into the graphite crushing device, combined with a drive stirring rod and rubber stirring blades, the problems of clogging and incomplete classification in the graphite powder screening device are solved, achieving efficient particle size classification and anti-clogging effect.

CN224321807UActive Publication Date: 2026-06-05QINGDAO DONGKAI GRAPHITE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO DONGKAI GRAPHITE CO LTD
Filing Date
2025-05-15
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing graphite powder screening devices are prone to clogging, resulting in low screening quality, inability to effectively classify graphite powder particles, and inconvenience in use.

Method used

A particle fineness screening device for graphite crushing was designed, which adopts a vibrating screen frame and a multi-stage screening filter screen, combined with a drive stirring rod and rubber stirring blades to prevent clogging and achieve particle size classification screening.

Benefits of technology

It achieves efficient particle size classification and screening, prevents clogging, and improves screening quality and ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to graphite particle screening technical field, and disclose a kind of particle fineness screening device for graphite crushing, including screening support platform, the top of screening support platform is equipped with vibrating screening frame, multiple vibration buffer springs are equipped between vibrating screening frame and screening support platform.The utility model, by operating vibrating motor, multiple screening filter screens can be driven, the mesh of multiple screening filter screens is sequentially smaller from top to bottom, so that multiple screening filter screens can be classified and screened according to the size of graphite powder particles, the effect of particle size classification screening is achieved, rubber bearing tube is correspondingly provided in the inside of screening filter screen and the bottom of vibrating screening cylinder, so that screening filter screen is not easy to damage driving stirring rod when vibrating, driving stirring rod can drive rubber stirring blade when rotating, and mixing, stirring, scraping and preventing blockage can be achieved, so that the device filter screen has good anti-blocking filtering effect, the particle size classification discharge capacity is excellent, the screening quality is high, and the use is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of graphite particle screening technology, specifically a particle fineness screening device for graphite crushing. Background Technology

[0002] Graphite anode powder is an important battery material, commonly used as the anode in lithium-ion batteries. It features good conductivity, high cycle stability, and high capacity retention, making it a key raw material for manufacturing high-performance lithium-ion batteries. The production process of graphite anode powder requires grinding graphite particles, followed by sieving. Precise sieving of particle fineness directly affects product quality and subsequent application performance; therefore, a graphite powder sieving device is required for this process.

[0003] During the sieving process of graphite anode powder, fine particles and sticky substances will adhere to the screen mesh, causing accumulation during feeding. If not cleaned in time, this will clog the screen mesh, affecting subsequent screening efficiency and resulting in low screening quality. Furthermore, the fineness classification and screening capacity of graphite powder is relatively insufficient, making it difficult to classify and sieve according to the particle size of graphite powder particles effectively. The screening and filtration quality and practicality of existing devices are relatively inadequate, and they are inconvenient to operate. Therefore, we propose a particle fineness screening device for graphite pulverization to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a particle fineness screening device for graphite crushing, which has the advantages of good filter screen anti-clogging effect, excellent particle size classification and discharge capability, high screening quality, and convenient use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a particle fineness screening device for graphite crushing, comprising a screening support platform, wherein a vibrating screening frame is provided on the top of the screening support platform;

[0008] Multiple vibration buffer springs are provided between the vibrating screen frame and the screening support platform. Vibrating motors are provided on both sides of the vibrating screen frame. A vibrating screening cylinder is provided on the top of the vibrating screen frame. Screening filter screens are provided at equal intervals inside the vibrating screening cylinder. Screening discharge pipes are provided on the side of the vibrating screening cylinder.

[0009] A drive motor is provided at the bottom of the inner side of the screening support platform, and a drive stirring rod is provided at the top of the drive motor. Rubber stirring blades are provided at equal intervals on both sides of the drive stirring rod. Each rubber stirring blade is correspondingly arranged on both sides of the top of the screening filter screen. Rubber support tubes are provided inside the screening filter screen and at the bottom of the vibrating screening cylinder. The drive motor is rotatably connected to the inner side of the rubber support tube. The mesh size of the multiple screening filters decreases from top to bottom.

[0010] Preferably, the inner side of the screening support platform is provided with a support base plate, and the drive motor is fixedly installed on the top of the support base plate.

[0011] Preferably, the bottom of the side of the vibrating screen cylinder is provided with a bottom discharge pipe, and the top of the vibrating screen cylinder is open.

[0012] Preferably, the driving stirring rod is provided with bottom scraper plates on both sides, and the bottom of the bottom scraper plates is attached to the bottom of the vibrating screen cylinder.

[0013] Preferably, inclined mounting brackets are fixedly installed on both sides of the vibrating screen frame, and the two vibrating motors are installed on opposite sides of the two inclined mounting brackets, and the two vibrating motors are bolted and fixed to the two inclined mounting brackets.

[0014] Preferably, each of the screening discharge pipes corresponds to the upper side of each screening filter screen, the number of screening discharge pipes and screening filter screens is the same, and the end of the screening discharge pipe away from the vibrating screening cylinder is fitted with a leak-proof sleeve.

[0015] Preferably, the rubber support tube is a soft rubber tube, the driving stirring rod and the screening filter are both on the same axis, and each of the rubber support tubes passes through the upper and lower sides of each screening filter.

[0016] Preferably, the plurality of vibration buffer springs are evenly distributed on the top of the screening support platform, and the top of each vibration buffer spring is fixedly connected to the bottom of the vibrating screening frame.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a particle fineness screening device for graphite pulverization, which has the following beneficial effects:

[0019] 1. This graphite pulverizing particle fineness screening device features a vibration buffer spring between the screening support platform and the vibrating screen frame, providing elastic buffering. The vibrating motor drives the vibrating screen frame to vibrate, which in turn drives multiple screening filters within the vibrating screen cylinder. When graphite powder is placed inside the vibrating screen cylinder, it is sequentially screened by the screening filters. The mesh size of the multiple screening filters decreases from top to bottom, allowing for grading and screening of the graphite powder particles according to their size. After passing through the screening filters, the powder is discharged through the corresponding screening discharge pipe, achieving the effect of particle size grading and screening. This device boasts excellent particle size grading and discharge capabilities, high screening quality, and convenient operation.

[0020] 2. This graphite pulverizing particle fineness screening device features a drive motor inside the screening support platform, which drives the stirring rod to rotate. Rubber bearing tubes are installed inside the screening filter screen and at the bottom of the vibrating screening cylinder to prevent damage to the driving stirring rod during vibration. The rotating stirring rod drives the rubber stirring blades for auxiliary mixing and stirring, resulting in good auxiliary screening effect. The rubber stirring blades also perform anti-clogging scraping on the screening filter screen, preventing graphite powder from accumulating and clogging it. This ensures stable material feeding, excellent screening quality, and good anti-clogging filtration effect and high filtration efficiency. Attached Figure Description

[0021] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a top-view perspective view of the structure of this utility model;

[0023] Figure 3 This is a three-dimensional sectional view of the structure of this utility model.

[0024] Figure 4 This is a top view sectional perspective of the structure of this utility model;

[0025] Figure 5 This is a frontal perspective three-dimensional schematic diagram of the connection structure between the driving stirring rod and the rubber bearing tube of this utility model.

[0026] In the diagram: 1. Screening support platform; 2. Vibrating screen frame; 3. Vibration buffer spring; 4. Vibrating motor; 5. Vibrating screen cylinder; 6. Screening filter screen; 7. Screening discharge pipe; 8. Drive motor; 9. Drive stirring rod; 10. Rubber stirring blade; 11. Rubber bearing pipe; 12. Support base plate; 13. Bottom discharge pipe; 14. Bottom scraper; 15. Inclined mounting frame; 16. Leak-proof protective sleeve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 5 A particle fineness screening device for graphite crushing includes a screening support platform 1, and a vibrating screening frame 2 is provided on the top of the screening support platform 1.

[0029] Multiple vibration buffer springs 3 are provided between the vibrating screen frame 2 and the screening support table 1. Vibrating motors 4 are provided on both sides of the vibrating screen frame 2. A vibrating screen cylinder 5 is provided on the top of the vibrating screen frame 2. Screening filter screens 6 are provided at equal intervals inside the vibrating screen cylinder 5. Screening discharge pipes 7 are provided on the side of the vibrating screen cylinder 5.

[0030] A drive motor 8 is provided at the bottom of the inner side of the screening support platform 1. A drive stirring rod 9 is provided at the top of the drive motor 8. Rubber stirring blades 10 are provided at equal distances on both sides of the drive stirring rod 9. Each rubber stirring blade 10 is correspondingly provided on both sides of the top of the screening filter screen 6. Rubber bearing tubes 11 are provided inside the screening filter screen 6 and at the bottom of the vibrating screening cylinder 5. The drive motor 8 is rotatably connected to the inner side of the rubber bearing tube 11. The mesh size of the multiple screening filter screens 6 decreases from top to bottom.

[0031] The beneficial effects of this solution are as follows: By installing a vibration buffer spring 3 between the screening support platform 1 and the vibrating screen frame 2, an elastic buffering effect is achieved. The operation of the vibration motor 4 drives the vibrating screen frame 2 to vibrate, which in turn drives the multiple screening filters 6 inside the vibrating screen cylinder 5. When graphite powder is placed inside the vibrating screen cylinder 5, it can be sequentially screened by the screening filters 6. The mesh size of the multiple screening filters 6 decreases from top to bottom, allowing the multiple screening filters 6 to perform grading and screening according to the size of the graphite powder particles. After passing through the screening filters 6, the material is discharged through the corresponding screening discharge pipe 7. This achieves particle size classification and screening. The inner side of the screening support platform 1 is equipped with a drive motor 8, which can drive the drive stirring rod 9 to rotate. Rubber bearing tubes 11 are provided inside the screening filter screen 6 and at the bottom of the vibrating screening cylinder 5, so that the drive stirring rod 9 is not easily damaged when the screening filter screen 6 vibrates. When the drive stirring rod 9 rotates, it can drive the rubber stirring blades 10 to perform auxiliary mixing and stirring, which has a good auxiliary screening effect and plays a role in preventing clogging and scraping. It prevents graphite powder from accumulating and clogging, and the feeding is stable. This makes the filter screen of the device have a good anti-clogging filtration effect, excellent particle size classification and discharge capacity, high screening quality, and convenient use.

[0032] Furthermore, a support base plate 12 is provided on the inner side of the screening support table 1, and the drive motor 8 is fixedly installed on the top of the support base plate 12.

[0033] By setting a support base plate 12, the drive motor 8 can be supported, making the operation of the drive motor 8 stable and less prone to deviation during operation, thus improving its practicality.

[0034] Furthermore, a bottom discharge pipe 13 is provided at the bottom of the side of the vibrating screen cylinder 5, and the top of the vibrating screen cylinder 5 is open.

[0035] By setting the bottom discharge pipe 13, the graphite powder remaining inside the vibrating screen cylinder 5 can be stably discharged through the bottom discharge pipe 13. The top of the vibrating screen cylinder 5 is open, which makes feeding convenient and easy to use.

[0036] Furthermore, bottom scraper plates 14 are provided on both sides of the drive stirring rod 9, and the bottom of the bottom scraper plates 14 is attached to the bottom of the vibrating screen cylinder 5.

[0037] By setting the bottom scraper 14, the graphite powder remaining at the bottom of the vibrating screen cylinder 5 can be removed, making discharge convenient and less likely to leave residue.

[0038] Furthermore, inclined mounting brackets 15 are fixedly installed on both sides of the vibrating screen frame 2, and two vibrating motors 4 are installed on opposite sides of the two inclined mounting brackets 15 respectively. The two vibrating motors 4 are bolted and fixed to the two inclined mounting brackets 15.

[0039] By setting an inclined mounting bracket 15, it is easy to install the vibration motor 4. The vibration motor 4 is installed symmetrically with an inclined shape, resulting in stable vibration effect and good vibration feeding effect.

[0040] Furthermore, each screening discharge pipe 7 corresponds to the upper side of each screening filter screen 6. The number of screening discharge pipes 7 and screening filter screens 6 is the same. The end of the screening discharge pipe 7 away from the vibrating screening cylinder 5 is fitted with a leak-proof sleeve 16.

[0041] By setting the screening discharge pipes 7 to correspond to the upper side of each screening filter screen 6, it is convenient to discharge the graphite powder on the screening filter screen 6, making grading and material separation convenient and easy to use. The anti-leakage sleeve 16 acts as a sealing switch, facilitating material discharge and preventing leakage.

[0042] Furthermore, the rubber support tube 11 is a soft rubber tube, the driving stirring rod 9 and the screening filter screen 6 are both on the same axis, and each rubber support tube 11 passes through the upper and lower sides of each screening filter screen 6.

[0043] By setting the rubber bearing pipe 11 to be a soft rubber pipe, the driving stirring rod 9 is less likely to be damaged when the screening filter screen 6 and the vibrating screen cylinder 5 vibrate. The driving stirring rod 9 rotates more stably. The driving stirring rod 9 and the screening filter screen 6 are both on the same axis. The rotation of the driving stirring rod 9 is stable, and the device operates stably and is not easily damaged.

[0044] Furthermore, multiple vibration buffer springs 3 are evenly distributed on the top of the screening support platform 1, and the top of each vibration buffer spring 3 is fixedly connected to the bottom of the vibrating screen frame 2.

[0045] By setting vibration buffer springs 3 evenly distributed on the top of the screening support platform 1 and placing them stably, the vibration buffer springs 3 can buffer the vibration when the vibrating screen frame 2 is vibrating and screening, preventing the screening support platform 1 from being damaged by vibration, and providing good elastic protection.

[0046] It should be noted that all the devices in this application are common devices on the market, and can be selected according to the needs of specific use. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection. Those skilled in the art can easily implement it. It belongs to the prior art and will not be described in detail.

[0047] Working principle: A vibrating screen frame 2 is installed on the top of the screening support platform 1. The vibrating screen frame 2 is elastically supported by multiple vibration buffer springs 3. Vibrating motors 4 are installed on both sides of the vibrating screen frame 2. Running the vibrating motors 4 can drive the vibrating screen frame 2 to vibrate. A vibrating screen cylinder 5 is installed on the top of the vibrating screen frame 2. The vibrating screen cylinder 5 is equipped with screening filter screens 6 arranged at equal intervals. When the vibrating screen frame 2 vibrates, it can drive the screening filter screens 6 to vibrate. When graphite powder is placed in the vibrating screen cylinder 5, it can be vibrated and screened by the screening filter screens 6 in sequence. The mesh size of the multiple screening filter screens 6 decreases from top to bottom, so that the multiple screening filter screens 6 can perform graded screening according to the size of the graphite powder particles. After being filtered by the screening filter screens 6, the material is discharged by the corresponding screening discharge pipe 7, achieving the effect of particle size classification screening.

[0048] A drive motor 8 is installed inside the screening support platform 1, which can drive the stirring rod 9 to rotate. Rubber support tubes 11 are correspondingly installed inside the screening filter screen 6 and at the bottom of the vibrating screen cylinder 5. The stirring rod 9 can be limited to rotate within the rubber support tube 11. Because the rubber support tube 11 is made of elastic material, the stirring rod 9 is not easily damaged when the screening filter screen 6 and vibrating screen cylinder 5 vibrate, resulting in stable rotation of the stirring rod 9. Rubber stirring blades 10 are correspondingly installed on both sides of the stirring rod 9, corresponding to the top sides of the screening filter screen 6. During the screening of graphite powder, the stirring blades 10 are driven by the drive motor 8 to rotate, providing auxiliary mixing and stirring. This results in good auxiliary screening effect. Furthermore, the rubber stirring blades 10 can perform anti-clogging scraping of the screening filter screen 6, preventing graphite powder from accumulating and clogging it. This ensures stable material feeding, excellent screening quality, good anti-clogging filtration effect of the filter screen, excellent particle size classification and discharge capability, high screening quality, and convenient use.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A particle fineness screening device for graphite pulverization, comprising a screening support platform (1), characterized in that: The top of the screening support platform (1) is provided with a vibrating screening frame (2); Multiple vibration buffer springs (3) are provided between the vibrating screen frame (2) and the screening support platform (1). Vibrating motors (4) are provided on both sides of the vibrating screen frame (2). A vibrating screening cylinder (5) is provided on the top of the vibrating screen frame (2). Screening filter screens (6) are provided at equal intervals inside the vibrating screening cylinder (5). Screening discharge pipes (7) are provided on the side of the vibrating screening cylinder (5). The bottom of the inner side of the screening support platform (1) is provided with a drive motor (8), the top of the drive motor (8) is provided with a drive stirring rod (9), and rubber stirring blades (10) are provided at equal distances on both sides of the drive stirring rod (9). Each rubber stirring blade (10) is correspondingly provided on both sides of the top of the screening filter screen (6). The inside of the screening filter screen (6) and the bottom of the vibrating screening cylinder (5) are both provided with rubber bearing tubes (11). The drive motor (8) is rotatably connected to the inside of the rubber bearing tube (11). The mesh size of the multiple screening filter screens (6) decreases from top to bottom.

2. The particle fineness screening device for graphite pulverization according to claim 1, characterized in that: The screening support platform (1) has a support base plate (12) on its inner side, and the drive motor (8) is fixedly installed on the top of the support base plate (12).

3. The particle fineness screening device for graphite pulverization according to claim 1, characterized in that: The bottom of the side of the vibrating screen cylinder (5) is provided with a bottom discharge pipe (13), and the top of the vibrating screen cylinder (5) is open.

4. The particle fineness screening device for graphite pulverization according to claim 1, characterized in that: The driving stirring rod (9) is provided with bottom scraper plates (14) on both sides, and the bottom of the bottom scraper plates (14) is attached to the bottom of the vibrating screen cylinder (5).

5. The particle fineness screening device for graphite pulverization according to claim 1, characterized in that: Inclined mounting brackets (15) are fixedly installed on both sides of the vibrating screen frame (2). The two vibrating motors (4) are installed on opposite sides of the two inclined mounting brackets (15). The two vibrating motors (4) are bolted and fixed on the two inclined mounting brackets (15).

6. The particle fineness screening device for graphite pulverization according to claim 1, characterized in that: Each of the screening discharge pipes (7) corresponds to the upper side of each screening filter screen (6). The number of screening discharge pipes (7) and screening filter screens (6) is the same. The end of the screening discharge pipe (7) away from the vibrating screening cylinder (5) is fitted with a leak-proof sleeve (16).

7. The particle fineness screening device for graphite pulverization according to claim 1, characterized in that: The rubber support tube (11) is a soft rubber tube. The driving stirring rod (9) and the sieve filter (6) are both on the same axis. Each of the rubber support tubes (11) passes through the upper and lower sides of each sieve filter (6).

8. The particle fineness screening device for graphite pulverization according to claim 1, characterized in that: Multiple vibration buffer springs (3) are evenly distributed on the top of the screening support platform (1), and the top of each vibration buffer spring (3) is fixedly connected to the bottom of the vibrating screen frame (2).