Screening device for graphite production

By designing a screening device that includes a frame, screening mechanism, and pre-screening mechanism, the problem of cumbersome multiple screening operations in existing technologies has been solved, and efficient multi-particle-size classification and collection in graphite production has been achieved.

CN223931943UActive Publication Date: 2026-02-24HUBEI DAQING TECH CO LTD
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Patent Information

Application Number
CN202520486860.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-24
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

In the current graphite production process, it is necessary to change the screen multiple times to screen graphite of different particle sizes. This operation is cumbersome, time-consuming, and labor-intensive, affecting the screening effect.

Method used

A screening device was designed, comprising a frame, a screening mechanism, a collection mechanism, and a pre-screening mechanism. The pre-screening mechanism initially screens larger-sized graphite particles, and the subsequent screening mechanism further screens and classifies and collects medium and small-sized graphite particles, reducing the number of operation steps.

Benefits of technology

It simplifies the graphite sieving process, saves time and labor, improves the sieving effect, and enables efficient one-time classification and collection of graphite of different particle sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a screening device for graphite production, which comprises a frame body, a screening mechanism is arranged on the frame body, a collecting mechanism is arranged on the screening mechanism, and a pre-screening mechanism is further arranged on the screening mechanism. According to the screening device for graphite production, the frame body, the screening mechanism, the collecting mechanism and the pre-screening mechanism are arranged, the pre-screening mechanism is firstly used for screening graphite, graphite with the large particle size is collected, and then the screening mechanism is used for screening the graphite; the collecting mechanism classifies and collects the graphite with the medium particle size and the graphite with the small particle size, the graphite does not need to be screened again, operation is easy, time and labor are saved, the screening effect is improved, and the problems that the graphite needs to be screened again, operation is troublesome, time and labor are wasted, and the screening effect is affected are solved.
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Description

Technical Field

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

[0002] Graphite electrodes are mainly made from petroleum coke and needle coke as raw materials, and coal tar pitch as a binder. They are produced through calcination, batching, mixing, molding, roasting, graphitization, and machining. They are conductors that release electrical energy in the form of an electric arc to heat and melt the furnace charge in an electric arc furnace. According to their quality indicators, they can be divided into ordinary power graphite electrodes, high power graphite electrodes, and ultra-high power graphite electrodes. During the production process, graphite electrodes need to be filtered and screened to classify particles of different sizes in order to prepare graphite electrodes that meet the requirements.

[0003] A search revealed that Chinese Utility Model Application No. CN201922292841.5 proposes a screening device for the production of graphite anode materials for lithium batteries. The utility model describes that "by pressing the locking block into the inner cavity of the sliding groove, the locking block retracts into the inner cavity of the sliding groove. At this time, the filter screen can be lifted, and the locking block can be inserted into the inner cavity of the through hole, so that the filter screen can be taken out for replacement. This greatly facilitates the replacement of the filter screen by the user and avoids the time-consuming and laborious situation when replacing the filter screen, thereby improving the practicality of the screening device."

[0004] This screening device for lithium battery graphite anode material production uses a vibrating motor to drive the screen to vibrate with the graphite, thus achieving the screening function. However, it can only screen out graphite of two particle sizes. When applied to processes with high requirements for graphite particle size, it is necessary to replace the screen with a screen of different aperture size and screen the graphite again. This operation is cumbersome, time-consuming, and labor-intensive, affecting the screening effect. Therefore, an improvement is needed. Thus, a screening device for graphite production is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a screening device for graphite production, which has advantages such as good screening effect. It solves the problem that graphite needs to be screened again, which is troublesome, time-consuming and labor-intensive, and affects the screening effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a screening device for graphite production, comprising a frame, a screening mechanism on the frame, a collection mechanism on the screening mechanism, and a pre-screening mechanism on the screening mechanism.

[0007] The screening mechanism includes a bin body, the pre-screening mechanism includes a slide rail, a baffle plate is provided on the slide rail, a handle is fixedly installed on the left side of the baffle plate, a first filter screen is embedded in the top of the bin body, a cleaning plate is fixedly installed on the right side of the baffle plate, a connecting block is fixedly installed on the left side of the bin body, a connecting plate extending upwards is inserted into the inside of the connecting block, and a first collection box is fixedly installed on the outside of the connecting plate, the top of the first collection box not exceeding the top of the bin body.

[0008] Furthermore, a slider extending inward is fixedly installed on the outer wall of the baffle plate, and the slider matches the slide rail.

[0009] Furthermore, a first magnet extending into the compartment is fixedly installed at the bottom of the handle, and a second magnet magnetically attracted to the first magnetic strip is fixedly installed inside the compartment.

[0010] Furthermore, the cleaning plate has a triangular cross-section, and the bottom of the cleaning plate is attached to the top of the first filter screen.

[0011] Furthermore, the screening mechanism also includes a connecting seat, which is fixedly connected to the outer wall of the bin body. A spring is fixedly installed between the connecting seat and the frame. A vibration motor is fixedly installed on the outside of the bin body. A second filter screen is fixedly installed inside the bin body. A discharge hole is opened inside the bin body. The inner bottom wall of the discharge hole is flush with the top of the second filter screen.

[0012] Furthermore, the collection mechanism includes a first feeding bin, which is fixedly connected to the outer wall of the bin body and located below the discharge hole. A second collection box is placed below the first feeding bin, and a second feeding bin is fixedly installed at the bottom of the bin body. A third collection box is placed below the second feeding bin.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This screening device for graphite production consists of a frame, a screening mechanism, a collection mechanism, and a pre-screening mechanism. The pre-screening mechanism first screens the graphite and collects the larger-sized graphite particles. Then, the screening mechanism screens the graphite again, and the collection mechanism separates and collects the medium-sized and smaller-sized graphite particles. This eliminates the need for further screening of the graphite, making the operation simple, time-saving, and labor-saving, and improving the screening effect. Attached Figure Description

[0015] Figure 1 This is a front view of the present utility model;

[0016] Figure 2 This is a partial top view of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a partial rear sectional view of the present invention;

[0019] Figure 5 This utility model Figure 4 Enlarged view of section B in the middle.

[0020] In the diagram: 1. Frame, 2. Screening mechanism, 21. Bin, 22. Connecting seat, 23. Spring, 24. Vibration motor, 25. Second filter screen, 3. Collection mechanism, 31. First feeding bin, 32. Second collection box, 33. Second feeding bin, 34. Third collection box, 4. Pre-screening mechanism, 41. Slide rail, 42. Baffle plate, 43. Handle, 44. First filter screen, 45. Cleaning plate, 46. Connecting block, 47. Connecting plate, 48. First collection box. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 The sieving device for graphite production in this embodiment includes a frame 1, a sieving mechanism 2 on the frame 1, a collecting mechanism 3 on the sieving mechanism 2, and a pre-sieving mechanism 4 on the sieving mechanism 2.

[0023] Specifically, the staff first uses the pre-screening mechanism 4 to screen the graphite and collect the graphite with larger particle size. Then, the screening mechanism 2 is used to screen the graphite. The collection mechanism 3 classifies and collects the graphite with medium and small particle sizes. There is no need to screen the graphite again. The operation is simple, time-saving and labor-saving, and improves the screening effect.

[0024] In this embodiment, the screening mechanism 2 includes a bin 21, and the pre-screening mechanism 4 includes a slide rail 41. A baffle plate 42 is provided on the slide rail 41. A slider extending into the inner side is fixedly installed on the outer side wall of the baffle plate 42. The slider matches the slide rail 41. A handle 43 is fixedly installed on the left side of the baffle plate 42. A first magnet extending into the bin 21 is fixedly installed at the bottom of the handle 43. A second magnet magnetically attracted to the first magnetic strip is fixedly installed inside the bin 21. A first filter screen 44 is embedded at the top of the bin 21. A cleaning plate 45 is fixedly installed on the right side of the baffle plate 42. The cross-section of the cleaning plate 45 is triangular. The bottom of the cleaning plate 45 is in contact with the top of the first filter screen 44. A connecting block 46 is fixedly installed on the left side of the bin 21. A connecting plate 47 extending upward is inserted into the connecting block 46. A first collection box 48 is fixedly installed on the outside of the connecting plate 47. The top of the first collection box 48 does not exceed the top of the bin 21.

[0025] Specifically, first, hold handle 43 to move baffle 42 to the right, then pour graphite into the interior of chamber 21. First filter screen 44 sieves the graphite, with larger-sized graphite particles located at the top of first filter screen 44. Next, hold handle 43 to move baffle 42 and cleaning plate 45 to the left. Cleaning plate 45 pushes larger-sized graphite particles into the interior of first collection box 48. Finally, move connecting plate 47 upward, causing first collection box 48 to move out of the interior of connecting block 46.

[0026] In this embodiment, the screening mechanism 2 also includes a connecting seat 22, which is fixedly connected to the outer wall of the bin body 21. A spring 23 is fixedly installed between the connecting seat 22 and the frame 1. A vibration motor 24 is fixedly installed on the outside of the bin body 21. A second filter screen 25 is fixedly installed inside the bin body 21. A discharge hole is opened inside the bin body 21, and the inner bottom wall of the discharge hole is flush with the top of the second filter screen 25.

[0027] Specifically, by turning on the vibration motor 24, the vibration motor 24 drives the chamber 21, the connecting seat 22, the second filter screen 25 and the graphite to vibrate. The spring 23 is deformed by the force, and the graphite is screened into graphite with medium particle size and graphite with small particle size.

[0028] In this embodiment, the collection mechanism 3 includes a first feeding bin 31, which is fixedly connected to the outer wall of the bin body 21. The first feeding bin 31 is located below the discharge hole. A second collection box 32 is placed below the first feeding bin 31. A second feeding bin 33 is fixedly installed at the bottom of the bin body 21. A third collection box 34 is placed below the second feeding bin 33.

[0029] Specifically, medium-sized graphite particles pass through the first feed bin 31 and fall into the second collection box 32, while smaller-sized graphite particles pass through the second feed bin 33 and fall into the third collection box 34.

[0030] The working principle of the above embodiments is as follows:

[0031] The operator first holds handle 43 and moves baffle 42 to the right, then pours graphite into the chamber 21. The first filter screen 44 sieves the graphite, with larger particles located at the top of the first filter screen 44. Next, the operator holds handle 43 and moves baffle 42 and cleaning plate 45 to the left. Cleaning plate 45 pushes the larger graphite particles into the first collection box 48. The first and second magnets attract each other, positioning baffle 42 at the top of the chamber 21. Finally, the connecting plate 47 moves upward, causing the first collection box 48 to move from the top of the chamber 21. The internal part of the receiving block 46 is moved out. By turning on the vibration motor 24, the vibration motor 24 drives the bin 21, the connecting seat 22, the second filter screen 25 and the graphite to vibrate. The spring 23 is deformed by the force. The second filter screen 25 screens the graphite. Graphite with medium particle size passes through the first feeding bin 31 and falls into the inside of the second collection box 32. Graphite with smaller particle size passes through the second feeding bin 33 and falls into the inside of the third collection box 34. This achieves classified collection without the need to screen the graphite again. The operation is simple, time-saving and labor-saving, and improves the screening effect.

[0032] 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.

[0033] 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 screening device for graphite production, comprising a frame (1), a screening mechanism (2) disposed on the frame (1), and a collection mechanism (3) disposed on the screening mechanism (2), characterized in that: The screening mechanism (2) is also provided with a pre-screening mechanism (4); The screening mechanism (2) includes a bin (21), the pre-screening mechanism (4) includes a slide rail (41), a baffle plate (42) is provided on the slide rail (41), a handle (43) is fixedly installed on the left side of the baffle plate (42), a first filter screen (44) is embedded in the top of the bin (21), a cleaning plate (45) is fixedly installed on the right side of the baffle plate (42), a connecting block (46) is fixedly installed on the left side of the bin (21), a connecting plate (47) extending upward is inserted into the inside of the connecting block (46), a first collection box (48) is fixedly installed on the outside of the connecting plate (47), and the top of the first collection box (48) does not exceed the top of the bin (21).

2. A screening device for graphite production as described in claim 1, characterized in that: The outer wall of the shield (42) is fixedly fitted with a slider extending into the interior, the slider being matched with the slide rail (41).

3. A screening device for graphite production as described in claim 1, characterized in that: The bottom of the handle (43) is fixedly installed with a first magnet extending into the compartment (21), and the inside of the compartment (21) is fixedly installed with a second magnet that is magnetically attracted to the first magnetic strip.

4. A screening device for graphite production as described in claim 1, characterized in that: The cleaning plate (45) has a triangular cross-section, and the bottom of the cleaning plate (45) is attached to the top of the first filter screen (44).

5. A screening device for graphite production as described in claim 1, characterized in that: The screening mechanism (2) also includes a connecting seat (22), which is fixedly connected to the outer wall of the silo body (21). A spring (23) is fixedly installed between the connecting seat (22) and the frame (1). A vibration motor (24) is fixedly installed on the outside of the silo body (21). A second filter screen (25) is fixedly installed inside the silo body (21). A discharge hole is opened inside the silo body (21), and the inner bottom wall of the discharge hole is flush with the top of the second filter screen (25).

6. A screening device for graphite production as described in claim 1, characterized in that: The collecting mechanism (3) includes a first feeding bin (31), which is fixedly connected to the outer wall of the bin body (21). The first feeding bin (31) is located below the discharge hole. A second collecting box (32) is placed below the first feeding bin (31). A second feeding bin (33) is fixedly installed at the bottom of the bin body (21). A third collecting box (34) is placed below the second feeding bin (33).

Citation Information

Patent Citations

  • Screening device for lithium battery graphite negative electrode material production

    CN211359566U