A screen structure for filtering fibrous foreign matter in a graphite negative electrode material pipeline

Abstract

This utility model discloses a screen structure for filtering fibrous foreign matter in a graphite anode material pipeline. It includes a base, a mounting shaft, and one or more screen assemblies. Each screen assembly comprises several parallel serrated plates, fixedly connected by connecting plates. A mounting shaft is vertically fixed to the base, and the screen assembly is sleeved on the mounting shaft. A limiting nut is screwed onto the top of the mounting shaft. Advantages: In use, this utility model is installed in the vertical pipe of the vibrating screen's discharge section. The annular chuck of the limiting disc engages with the edge of the lower section of the vertical pipe. When the material discharged from the vibrating screen passes through this screen structure in the vertical pipe, the fibrous foreign matter in the material is intercepted layer by layer by the screen assemblies. The intercepted material enters subsequent equipment from the lower section, while the fibrous foreign matter is intercepted on the serrated plates, thereby reducing its mixing into the graphite anode material product and improving product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of graphite anode material production equipment, and in particular to a screen structure for filtering fibrous foreign matter in a graphite anode material pipeline. Background Technology

[0002] In the production of artificial graphite powder for lithium battery anodes, two types of graphite materials with different particle sizes need to be mixed before packaging, according to process requirements. Before mixing, the artificial graphite powder needs to be treated by removing iron, crushing, and screening. During the early stages of production, a significant amount of fibrous foreign matter may be mixed into the feeding station. The main sources are: rags, gloves, and other debris mixed in with the raw materials, as well as rags, gloves, and bag accessories accidentally dropped by the feeding personnel. While some of these fibrous foreign matter can be intercepted during the screening process, some will be worn into fine fibers during the transfer from the feeding station hopper to the screening process. These fine fibers can pass through the vibrating screen and cannot be removed, which will seriously affect the quality of the anode material. This will lead to quality problems such as bulging in the anode batteries made from this material, resulting in customer complaints about product quality and the risk of losing customers for the company. Utility Model Content

[0003] The purpose of this invention is to provide a screen structure for filtering fibrous foreign objects in a graphite negative electrode material pipeline, which can effectively intercept fibrous foreign objects in materials to improve product quality.

[0004] This utility model is implemented by the following technical solution: a screen structure for filtering fibrous foreign objects in a graphite negative electrode material pipeline, which includes a base, a mounting shaft, and one or more screen assemblies; the screen assembly includes several parallel serrated plates, and each serrated plate is fixedly connected to the other by a connecting plate; the mounting shaft is vertically fixed on the base, the screen assembly is sleeved on the mounting shaft, and a limit nut is screwed onto the top end of the mounting shaft.

[0005] Furthermore, a limiting disc is sleeved on the mounting shaft above the limiting nut, and a locking nut is screwed onto the mounting shaft above the limiting disc.

[0006] Furthermore, a handle is fixed on the limiting plate.

[0007] Furthermore, the limiting plate includes an annular chuck, and the annular chuck is fixed with a coaxial sleeve by a connecting rod. The sleeve of the limiting plate is sleeved on the mounting shaft.

[0008] Furthermore, the outer edge of the screen assembly is circular, and its diameter is smaller than the outer diameter of the annular chuck.

[0009] Furthermore, a sleeve that is slidably sleeved on the mounting shaft is fixed in the middle of the screen assembly.

[0010] Furthermore, it includes 6 to 12 layers of the screen assembly described above.

[0011] Furthermore, the included angle between the staggered serrated plates of two adjacent layers of the screen assembly is 15° to 30°.

[0012] Advantages of this invention: In use, this invention is installed in the vertical pipe of the discharge section of the vibrating screen. The annular chuck of the limiting plate is engaged with the edge of the lower section of the vertical pipe. When the material discharged from the vibrating screen passes through the screen structure in the vertical pipe, the fibrous foreign matter in the material is intercepted layer by layer by the screen components. The intercepted material enters the subsequent equipment from the lower section, while the fibrous foreign matter is intercepted on the sawtooth plate, thereby reducing the amount of foreign matter mixed into the graphite negative electrode material product and improving product quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 for Figure 1 AA sectional view.

[0016] Figure 3 The three-dimensional structure of this utility model Figure 1 .

[0017] Figure 4 The three-dimensional structure of this utility model Figure 2 .

[0018] Figure 5 This is a schematic diagram showing the installation and use of this utility model.

[0019] The components in the attached diagram are labeled as follows: base 1, mounting shaft 2, screen assembly 3, serrated plate 3.1, connecting plate 3.2, sleeve 3.3, limit nut 4, limit disc 5, annular chuck 5.1, connecting rod 5.2, sleeve 5.3, locking nut 6, handle 7, upper section tube 8, intermediate corrugated flexible connecting tube 9, lower section tube 10. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0022] like Figures 1 to 4 As shown, this embodiment provides a screen structure for filtering fibrous foreign objects in a graphite negative electrode material pipeline, which includes a base 1, a mounting shaft 2 vertically fixed on the base 1, and a screen assembly 3; each layer of screen assembly 3 includes several mutually parallel serrated plates 3.1, the top edge of the serrated plates 3.1 is provided with serrations, and each serrated plate 3.1 is fixedly connected by a connecting plate 3.2, and a sleeve 3.3 is fixed in the middle of the screen assembly 3.

[0023] The optimal number of screen assembly 3 layers is 6 to 8. The included angle between the serrated plates 3.1 of two adjacent screen assembly 3 layers is 15° to 30°. If there are too many layers of screen assembly 3, it will affect the smoothness of material passage and easily cause material blockage. If there are too few layers, it will affect the effect of intercepting foreign fiber objects. The sleeves 3.3 of each layer of screen assembly 3 are slidably sleeved on the mounting shaft 2 for easy disassembly and assembly. The sleeve 3.3 of the bottom layer of screen assembly 3 abuts against the base 1, and the sleeves 3.3 of two adjacent layers of screen assembly 3 abut against each other.

[0024] A limiting nut 4 is screwed onto the top of the mounting shaft 2 above the top screen assembly 3. The limiting nut 4 abuts against the sleeve 3.3 of the top screen assembly 3, thereby locking and fixing each screen assembly 3.

[0025] A limiting disc 5 is fitted onto the mounting shaft 2 above the limiting nut 4. The limiting disc 5 includes an annular chuck 5.1. The annular chuck 5.1 is fixed with a coaxial sleeve 5.3 via a connecting rod 5.2. The sleeve 5.3 of the limiting disc 5 is fitted onto the mounting shaft 2. The outer edge of the screen assembly 3 is circular, and its diameter is smaller than the outer diameter of the annular chuck 5.1. A locking nut 6 is screwed onto the mounting shaft 2 above the limiting disc 5 to install and fix the limiting disc 5 onto the mounting shaft 2. A handle 7 is fixed onto the limiting disc 5.

[0026] In use, this utility model is installed inside the vertical pipe of the discharge section of the vibrating screen, such as... Figure 5 As shown, the vertical pipe includes an upper section pipe 8, a lower section pipe 10, and an intermediate corrugated flexible connecting pipe 9. The top end of the upper section pipe 8 is connected to the discharge end of the vibrating screen, and the bottom end of the lower section pipe 10 is connected to the inlet of subsequent equipment. The intermediate corrugated flexible connecting pipe 9 is connected between the upper and lower sections by a pipe clamp. The intermediate corrugated flexible connecting pipe 9 serves as a buffer during the vibration of the vibrating screen. Furthermore, disassembling the intermediate corrugated flexible connecting pipe facilitates the installation of this utility model; that is, the screen assembly 3 is inserted into the lower section pipe 10, and the annular chuck 5.1 of the limiting disc 5 engages with the lower section pipe. The middle corrugated flexible connecting pipe 9 is then installed between the upper section pipe 8 and the lower section pipe 10. When the material discharged from the vibrating screen passes through the screen structure in the vertical pipe, the fibrous foreign objects in the material are intercepted layer by layer by the screen components 3. The intercepted material enters the subsequent equipment from the lower section pipe, while the fibrous foreign objects are intercepted on the sawtooth plate 3.1. When it is necessary to clean the fibrous foreign objects intercepted on the screen structure, the middle corrugated flexible connecting pipe is disassembled, and it is lifted from the upper section pipe by the handle 7. The screen components 3 are then removed for effective cleaning.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screen structure for filtering fibrous foreign matter in a graphite negative electrode material pipeline, characterized in that, It includes a base, a mounting shaft, and one or more layers of screen components; The screen assembly includes several parallel saw blades, and the saw blades are fixedly connected to each other by a connecting plate. The mounting shaft is vertically fixed on the base, the screen assembly is sleeved on the mounting shaft, and a limit nut is screwed onto the top of the mounting shaft.

2. The screen structure of graphite negative electrode material pipeline filtering fiber foreign matter according to claim 1, characterized in that, A limiting disc is fitted onto the mounting shaft above the limiting nut, and a locking nut is screwed onto the mounting shaft above the limiting disc.

3. The screen structure for filtering fibrous foreign matter in a graphite negative electrode material pipeline according to claim 2, characterized in that, A handle is fixed on the limiting plate.

4. The screen structure of graphite negative material pipe filtering fiber foreign matter according to claim 2, characterized in that, The limiting plate includes an annular chuck, and the annular chuck is fixed with a coaxial sleeve by a connecting rod. The sleeve of the limiting plate is sleeved on the mounting shaft.

5. The screen structure of graphite negative material pipe filtering fiber foreign matter according to claim 4, characterized in that, The outer edge of the screen assembly is circular, and its diameter is smaller than the outer diameter of the annular chuck.

6. The screen structure of graphite negative material pipe filtering fiber foreign matter according to claim 1, characterized in that, A sleeve that is slidably sleeved on the mounting shaft is fixed in the middle of the screen assembly.

7. A screen structure for filtering fibres from graphite negative electrode material in a pipe according to any one of claims 1 to 6, characterised in that, It includes 6 to 12 layers of the screen assembly.

8. The screen structure of graphite negative material pipe filtering fiber foreign matter according to claim 7, characterized in that, The included angle between the staggered serrated plates of two adjacent screen assemblies is 15° to 30°.

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