Powder screening device for production process of mesocarbon microbeads

Abstract

The utility model provides a powder screening device for the mesocarbon microbead production process, and relates to the technical field of chemical processing, the powder screening device comprises a feeding bin and a powder screening mechanism, the lower side of the feeding bin is provided with the powder screening mechanism, and through the arrangement of the powder screening mechanism, when the powder screening device needs to be used, the powder screening mechanism is arranged on the lower side of the feeding bin. The mesocarbon microbeads falling from the feeding bin firstly fall to the top end of the net-shaped cone, at the moment, the mesocarbon microbeads with the particle size smaller than the density of the net-shaped cone continue to fall, the particles larger than the net-shaped cone fall along the outer side, and in the way, the particles which are not screened in the first time can be screened again. The meso-carbon microbeads with the particle size exceeding the standard degree fall into the inclined discharging plate, the meso-carbon microbeads falling from the net-shaped cone can fall into the inclined discharging plate, the particles can automatically flow out through the inclination angle of the inclined discharging plate, and therefore the meso-carbon microbeads with the overlarge size can be automatically screened and recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical processing, in particular to a powder screening device for the production process of mesocarbon microbeads. Background Art

[0002] Mesocarbon microbeads (MCMB) is a high-performance new carbon material. The MCMB anode material for lithium-ion batteries is a carbon anode material prepared by mixing acetylene carbon black raw materials with additives for wet granulation, steam preheating treatment, disk drying spiral, etc. Due to its unique microstructure, excellent electrical conductivity and thermal stability, this material is widely used in lithium-ion battery anode materials, high-performance composite materials and various energy storage devices. The powder screening device for the production process of mesocarbon microbeads is a device specially designed to screen and separate mesocarbon microbead powders. It effectively distinguishes mesocarbon microbeads of different particle sizes through a multi-stage screening mechanism, ensuring that the produced mesocarbon microbeads have a uniform particle size distribution and high purity, so as to meet the strict requirements for material quality in specific application fields.

[0003] After retrieval, the document with the patent number "CN217369204U" mentions "a powder screening device for the production process of mesocarbon microbeads, which relates to the technical field of screening devices, including a discharging machine. An outlet pipe and a screening box are arranged on one side of the discharging machine, and the outlet pipe is located above the left side of the screening box; a screening plate is arranged at the upper end of the inner cavity of the screening box. One end of the screening plate close to the discharging machine is hinged to the screening box. A spring is arranged between the bottom of the screening plate and the left inner wall of the screening box. An elastic blocking member matched with the inner side wall of the screening box is arranged at the right end of the screening plate; a deflection mechanism matched with the screening plate is arranged on the outlet pipe, and a power mechanism connected to the deflection mechanism is arranged at the top of the screening box". When in use, in this application, the motor drives the rotating rod and the cam to rotate. The screening plate is forced to deflect downward by the contact between the cam and the screening plate. When the cam is separated from the screening plate, the screening plate is reset by the spring, so as to continuously deflect the screening plate up and down, thereby accelerating the screening speed of the screening plate for cement. However, in the screening process of mesocarbon microbeads, since the volume of mesocarbon microbeads varies greatly after production, and the uses of different volumes are different. If the volume of mesocarbon microbeads is not distinguished and the oversized mesocarbon microbeads are not separated, it is easy to cause problems in subsequent use.

[0004] Therefore, we provide a powder screening device for the production process of mesocarbon microbeads to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a powder screening device for the production process of mesocarbon microbeads to solve the problems raised in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A powder screening device for the production process of mesophase carbon microspheres, comprising a feeding bin and a powder screening mechanism, wherein the powder screening mechanism is installed below the feeding bin;

[0007] The powder screening mechanism includes a powder discharge control component and a primary powder filtration component. The powder discharge control component is arranged below the feeding bin, and the primary powder filtration component is arranged below the powder discharge control component.

[0008] Preferably, the powder discharge control component includes a rotating rod, a triangular plate, and a rotating motor. The rotating rods are arranged below the feeding bin, the triangular plates are arranged below the rotating rods, and the rotating motors are arranged on the front sides of the rotating rods.

[0009] Preferably, the primary powder filtration component includes a material distribution bin, a dust barrier cloth, a mesh cone, an inclined discharge plate, and an inclined feeding plate. The material distribution bin is arranged below the triangular plate, the dust barrier cloth is wrapped around the outside of the material distribution bin, the mesh cone is arranged at the center inside the material distribution bin, the inclined discharge plates are arranged on the left and right sides of the mesh cone, and the inclined feeding plate is arranged below the mesh cone.

[0010] Preferably, the mesh cone is welded to the material distribution bin, and the mesh cone is made of stainless steel mesh material.

[0011] Preferably, the inclined discharge plates are symmetrically arranged about the central axis on the left and right of the mesh cone, and the inclined discharge plates are arranged at an angle of 15° downward.

[0012] Preferably, the inclined feeding plate is arranged along the same vertical line as the mesh cone, there is an opening on the right side of the inclined feeding plate, and the inclined feeding plate is arranged at an angle of 30°.

[0013] Preferably, a density material distribution component is installed below the inclined feeding plate. The density material distribution component includes a sub-division bin, a vibrating machine, a multi-stage filter screen, a powder isolation plate, a waste discharge port, and a grading collection bin. The sub-division bin is arranged below the inclined feeding plate, the vibrating machine is arranged on the right side of the sub-division bin, the multi-stage filter screen is welded inside the sub-division bin, the powder isolation plates are welded below the multi-stage filter screen, the waste discharge port is arranged on the left side of the multi-stage filter screen, and the grading collection bin is arranged below the powder isolation plate.

[0014] Preferably, the powder isolation plates are symmetrically arranged in multiple segments with respect to the multi-stage filter screen, and the powder isolation plates and the grading collection bins are in one-to-one correspondence.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. Through the setting of the powder screening mechanism, when in use, the mesophase carbon microspheres falling from the feed bin will first fall to the top of the mesh cone. At this time, the mesophase carbon microspheres with particle sizes smaller than the density of the mesh cone will continue to fall, while the particles larger than the mesh cone will fall along the outside. During this process, the particles that are not screened immediately will be screened again until only the mesophase carbon microspheres with particle sizes larger than the standard remain, which will fall into the inclined discharge plate. And the mesophase carbon microspheres falling from the mesh cone will also fall onto the inclined discharge plate, and such particles will flow out automatically through the inclined angle of the inclined discharge plate, thus automatically screening and recycling the mesophase carbon microspheres with overly large sizes.

[0017] 2. Through the setting of the density distribution component, the particles transported by the inclined feeding plate will fall onto the highest section of the multi-stage filter screen in the sub-division bin. After being vibrated by the vibrator, the mesophase carbon microspheres of different sizes will move from right to left, and at the same time, they will fall and be screened in the order from right to left, from small to large. Finally, they will fall into the classification collection bin according to their sizes. The powder isolation plate can prevent the particles screened from the multi-stage filter screen from getting mixed up during the falling process, so as to better distinguish them. And the distinguished particles will fall into the classification collection bin corresponding to the multi-stage filter screen, preventing particles of different sizes from being mixed together. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall external structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the bottom structure of the feed bin of the present utility model;

[0020] Figure 3 is a schematic diagram of the primary powder filtration component structure of the present utility model;

[0021] Figure 4 is a schematic diagram of the density distribution component structure of the present utility model.

[0022] Reference numerals in the figures: 1, feed bin; 2, powder screening mechanism; 21, powder discharge control component; 211, rotating rod; 212, triangular plate; 213, rotating motor; 22, primary powder filtration component; 221, sub-division bin; 222, dust barrier cloth; 223, mesh cone; 224, inclined discharge plate; 225, inclined feeding plate; 3, density distribution component; 31, sub-division bin; 32, vibrator; 33, multi-stage filter screen; 34, powder isolation plate; 35, waste discharge port; 36, classification collection bin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1-4 As shown, the present utility model provides a technical solution: a powder screening device for the production process of mesophase carbon microspheres, including a feeding bin 1 and a powder screening mechanism 2. The powder screening mechanism 2 is installed on the lower side of the feeding bin 1;

[0026] The powder screening mechanism 2 includes a powder discharge control component 21 and a primary powder filtering component 22. The powder discharge control component 21 is arranged on the lower side of the feeding bin 1, and the primary powder filtering component 22 is arranged on the lower side of the powder discharge control component 21.

[0027] Further, the powder discharge control component 21 includes a rotating rod 211, a triangular plate 212, and a rotating motor 213. The rotating rods 211 are arranged on the lower side of the feeding bin 1, the triangular plates 212 are arranged on the lower sides of the rotating rods 211, and the rotating motors 213 are arranged on the front sides of the rotating rods 211. When in use, the rotating rod 211 is driven by the rotating motor 213, and the mesophase carbon microspheres in the feeding bin 1 will fall due to gravity. The triangular plate 212 will limit the overall discharge volume, so that the staff can better control the rate.

[0028] Further, the primary powder filtering component 22 includes a material distribution bin 221, a dust barrier cloth 222, a mesh cone 223, an inclined discharge plate 224, and an inclined feeding plate 225. The material distribution bin 221 is arranged on the lower side of the triangular plate 212, the outside of the material distribution bin 221 is wrapped with the dust barrier cloth 222, the mesh cone 223 is arranged at the center inside the material distribution bin 221, the inclined discharge plates 224 are arranged on the left and right sides of the mesh cone 223, and the inclined feeding plate 225 is arranged on the lower side of the mesh cone 223. When in use, the dust barrier cloth 222 can reduce the dust generated during the material distribution of the mesophase carbon microspheres. Since the dust is the largest in the first stage, if the dust is not constrained in time, it is easy to cause the dust to spread and damage the health of the staff and pollute the environment.

[0029] Further, the mesh cone 223 is welded to the material distribution bin 221. The mesh cone 223 is made of stainless steel mesh. When in use, the mesophase carbon microspheres falling from the feed bin 1 will first fall to the top of the mesh cone 223. At this time, the mesophase carbon microspheres with particle sizes smaller than the density of the mesh cone 223 will continue to fall, while the particles larger than the mesh cone 223 will fall along the outside. On the way, the particles that are not screened in the first time will be screened again until the remaining mesophase carbon microspheres with particle sizes larger than the standard fall into the inclined discharge plate 224.

[0030] Further, the inclined discharge plate 224 is symmetrically arranged about the central axis with the mesh cone 223, and the inclined discharge plate 224 is arranged at a downward angle of 15°. When in use, the mesophase carbon microspheres falling from the mesh cone 223 will fall onto the inclined discharge plate 224, and such particles will automatically flow out through the inclined angle of the inclined discharge plate 224, so as to automatically screen and recycle the mesophase carbon microspheres with too large sizes.

[0031] Further, the inclined feeding plate 225 is arranged on the same vertical line as the mesh cone 223. There is an opening on the right side of the inclined feeding plate 225, and the inclined feeding plate 225 is arranged at an angle of 30°. When in use, the mesophase carbon microspheres falling from the mesh cone 223 will fall onto the inclined feeding plate 225, and the mesophase carbon microspheres will fall onto the highest section of the multi-stage filter screen 33 of the multi-stage filter screen 33 through the inclination of the inclined feeding plate 225, so as to assist in achieving the effect of multi-level screening.

[0032] Embodiment 2

[0033] Please refer to Figure 1 and Figure 4 As shown, compared with Embodiment 1, as another implementation manner of the present invention, a density distribution component 3 is installed on the lower side of the inclined feeding plate 225. The density distribution component 3 includes a sub-division bin 31, a vibrating machine 32, a multi-stage filter screen 33, a powder isolation plate 34, a waste discharge port 35 and a classification collection bin 36. A sub-division bin 31 is arranged on the lower side of the inclined feeding plate 225, a vibrating machine 32 is arranged on the right side of the sub-division bin 31, a multi-stage filter screen 33 is welded inside the sub-division bin 31, powder isolation plates 34 are welded on the lower sides of the multi-stage filter screens 33, a waste discharge port 35 is arranged on the left side of the multi-stage filter screen 33, and a classification collection bin 36 is arranged on the lower side of the powder isolation plate 34. When in use, the particles transported through the inclined feeding plate 225 will fall onto the highest section of the multi-stage filter screen 33 in the sub-division bin 31. After being vibrated by the vibrating machine 32, the mesophase carbon microspheres of different sizes will move in the direction from right to left, and at the same time, they will fall and be screened in the order from right to left and from small to large, and finally fall into the classification collection bin 36 according to their sizes.

[0034] Furthermore, the powder isolation plate 34 and the multi-stage filter screen 33 are symmetrically arranged in multiple sections, and the powder isolation plate 34 corresponds to the grading collection bin 36 one by one. When in use, the powder isolation plate 34 can prevent the particles screened from the multi-stage filter screen 33 from getting chaotic during the falling process, so as to better distinguish them. The distinguished particles will then fall into the grading collection bin 36 corresponding to the multi-stage filter screen 33, avoiding the mixing of particles of different sizes.

[0035] Working principle: Move a powder screening device for the production process of a mesophase carbon microsphere to the working position. When in use, in the first step, pour the mesophase carbon microspheres to be screened into the feeding bin 1, and then the staff controls the rotation motor 213 to drive the rotating rod 211 according to the requirements, and the rotating rod 211 drives the triangular plate 212 to rotate to control the flow rate. In the second step, the mesophase carbon microspheres first fall onto the mesh cone 223 of the material distribution bin 221. The larger particles will be discharged along the inclined discharge plate 224, and the dust stirred up will be captured by the dust barrier cloth 222. The qualified mesophase carbon microspheres will fall onto the inclined feeding plate 225. In the third step, the mesophase carbon microspheres on the inclined feeding plate 225 will fall onto the multi-stage filter screen 33 at the rightmost end of the fine division bin 31. After being vibrated by the vibrator 32, the mesophase carbon microspheres are screened from high to low. According to the volume size, they pass through the powder isolation plate 34 and fall into the grading collection bin 36 corresponding to the multi-stage filter screen 33. Finally, the mesophase carbon microspheres that still do not meet the volume size will be discharged through the waste discharge port 35, thus completing the use process of a powder screening device for the production process of a mesophase carbon microsphere.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder screening device for the production process of mesophase carbon microspheres, comprising a feeding bin (1) and a powder screening mechanism (2), characterized in that: A powder screening mechanism (2) is installed on the lower side of the feeding bin (1); The powder screening mechanism (2) includes a powder discharge control component (21) and a primary powder filtering component (22). The powder discharge control component (21) is arranged on the lower side of the feeding bin (1), and the primary powder filtering component (22) is arranged on the lower side of the powder discharge control component (21); The powder discharge control component (21) includes a rotating rod (211), a triangular plate (212), and a rotating motor (213). The rotating rods (211) are arranged on the lower side of the feeding bin (1), the triangular plates (212) are arranged on the lower side of the rotating rods (211), and the rotating motors (213) are arranged on the front side of the rotating rods (211); The primary powder filtering component (22) includes a material distribution bin (221), a dust barrier cloth (222), a mesh cone (223), an inclined discharge plate (224), and an inclined feeding plate (225). The material distribution bin (221) is arranged on the lower side of the triangular plate (212), the outer side of the material distribution bin (221) is wrapped with the dust barrier cloth (222), a mesh cone (223) is arranged at the center inside the material distribution bin (221), inclined discharge plates (224) are arranged on the left and right sides of the mesh cone (223), and an inclined feeding plate (225) is arranged on the lower side of the mesh cone (223); A density material distribution component (3) is installed on the lower side of the inclined feeding plate (225). The density material distribution component (3) includes a fine division bin (31), a vibrating machine (32), a multi-stage filter screen (33), a powder isolation plate (34), a waste discharge port (35), and a grading collection bin (36). The fine division bin (31) is arranged on the lower side of the inclined feeding plate (225), the vibrating machine (32) is arranged on the right side of the fine division bin (31), the multi-stage filter screen (33) is welded inside the fine division bin (31), the powder isolation plates (34) are welded on the lower side of the multi-stage filter screen (33), the waste discharge port (35) is arranged on the left side of the multi-stage filter screen (33), and the grading collection bin (36) is arranged on the lower side of the powder isolation plate (34).

2. The powder screening device for the production process of mesophase carbon microspheres according to claim 1, characterized in that, The mesh cone (223) is welded to the material distribution bin (221), and the mesh cone (223) is made of stainless steel mesh material.

3. A powder screening device for the production process of mesophase carbon microspheres according to claim 1, characterized in that, The inclined discharge plates (224) are symmetrically arranged about the central axis with respect to the mesh cone (223), and the inclined discharge plates (224) are arranged at an angle of 15° downward.

4. A powder screening device for the production process of mesophase carbon microspheres according to claim 1, characterized in that, The inclined feeding plate (225) is arranged along the same vertical line as the mesh cone (223). An opening is provided on the right side of the inclined feeding plate (225), and the inclined feeding plate (225) is arranged at an angle of 30°.

5. A powder screening device for the production process of mesophase carbon microspheres according to claim 1, characterized in that, The powder isolation plates (34) are symmetrically arranged in multiple sections with respect to the multi-stage filter screen (33), and the powder isolation plates (34) correspond one-to-one to the grading collection bins (36).

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