Fine dispersion grinding machine for graphene production

Abstract

The application discloses a fine dispersion grinding machine for graphene production and belongs to the technical field of graphene preparation equipment, which comprises a grinding box, a driving motor fixedly connected to the grinding box, a connecting rod fixedly connected to an output shaft of the driving motor, a supporting plate fixedly connected to the inside of the grinding box, a discharge port formed in the outside of the supporting plate, an upper grinding mechanism and a lower dispersion grinding mechanism fixedly connected to the outside of the connecting rod respectively, and a placing hole formed in the middle of the bottom of a material collecting hopper. When the connecting reinforcing rib is inclined, the unqualified graphene material after the first grinding can be poured into the lower grinding roller for the second grinding, and the filter screen can be vibrated in the rebound process of the rotating material collecting cylinder, so that the vibration is continuously generated to strengthen the screening work of the filter screen on the ground material, the overall separation grinding effect is strengthened, and the secondary sorting by manpower is not needed, which is relatively convenient.

Description

Technical Field

[0001] This invention relates to the field of graphene preparation equipment technology, specifically to a fine dispersion and grinding mill for graphene production. Background Technology

[0002] A fine dispersion mill is one of the key pieces of equipment in the graphene production process. Graphene, as a material composed of carbon atoms arranged in sp... 2 Two-dimensional carbon nanomaterials with hexagonal honeycomb lattices composed of hybrid orbitals possess excellent optical, electrical, and mechanical properties, showing great application potential in materials science, micro-nano fabrication, energy, biomedicine, and drug delivery. However, how to better refine graphite during the production of graphene has become a technical challenge.

[0003] The patent titled "A Continuous Multi-Stage Grinding and Dispersing Machine for Graphene Preparation," publication number CN110694740A, addresses the following problems in the actual operation of grinding graphene using the physical exfoliation method: To ensure the ground graphene meets certain standards, multiple grinding stages are required. During these stages, graphene of the correct and incorrect sizes are mixed together, with the correct size occupying a significant portion of the grinding space. This makes it difficult for the grinding equipment to fully grind the incorrect size, affecting the overall grinding quality. While the patent employs a multi-stage grinding method to separate the correct and incorrect sizes before subsequent grinding stages, thus improving grinding efficiency and quality, the method used to separate the incorrect size is through a filter. Furthermore, manual loading of the accumulated material into the secondary grinding equipment is required, making the process cumbersome. Therefore, a fine dispersion grinding machine for graphene production is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a fine dispersion grinding machine for graphene production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fine dispersion grinding machine for graphene production, comprising a grinding box, a drive motor fixedly connected to the grinding box, a connecting rod fixedly connected to the output shaft of the drive motor, a support plate fixedly connected inside the grinding box, a discharge port opened on the outside of the support plate, an upper grinding mechanism and a lower dispersion grinding mechanism fixedly connected to the outside of the connecting rod respectively, a collection hopper fixedly connected to the bottom of the support plate, and a placement hole opened at the middle position of the bottom of the collection hopper;

[0006] The lower grinding mechanism includes a connecting reinforcing rib, which is fixedly connected to the outside of the connecting rod. A rotating collecting cylinder is fixedly connected to the side of the connecting reinforcing rib away from the connecting rod. A lower grinding roller is fixedly connected to the outside of the rotating collecting cylinder. An elastic layer is integrally formed on the rotating collecting cylinder. Two filter screens are fixedly connected to the elastic layer. Two extension plates are fixedly connected to the outside of the elastic layer. An iron adsorption plate is fixedly connected to the end of the extension plate away from the filter screen. Multiple magnetic seats are fixedly connected inside the lower grinding roller. A lower grinding seat is fixedly connected inside the grinding box. The lower grinding roller is located on the lower grinding seat. A material receiving mechanism is snapped into the bottom of the grinding box.

[0007] Preferably, the upper grinding mechanism includes an upper grinding seat, which is fixedly connected to the inside of the grinding box. An upper grinding roller is fixedly connected to the outside of the connecting rod. The upper grinding roller is located inside the upper grinding seat. An inclined feed pipe is connected to the grinding box. The collecting hopper is located below the support plate.

[0008] Preferably, the extension plate and the iron adsorption plate are arranged in an arc shape. The area of ​​the extension plate and the iron adsorption plate on the side away from the elastic layer gradually expands in an arc shape. The extension plate and the iron adsorption plate, which gradually expand in area at the position of the grinding roller, are used so that when the iron adsorption plate is attracted to the magnetic seat and the elastic layer is deformed, the deformed elastic layer causes the filter screen to tilt to one side, thereby pouring the unqualified graphite particles accumulated on the filter screen onto the arc-shaped extension plate. And as the extension plate rotates, the unqualified graphite particles are evenly dispersed onto the lower grinding roller for secondary grinding.

[0009] Preferably, the plurality of magnetic holders are divided into two groups, one group on the left and one group on the right. The magnetic holders in each group are arc-shaped and gradually approach the position of the rotating collecting cylinder. The magnetic force of the magnetic holders that gradually approach the position of the rotating collecting cylinder is greater than that of the magnetic holders that gradually move away from the position of the rotating collecting cylinder.

[0010] Preferably, the magnetic suction seat located near the rotating collecting cylinder is disposed on the surface of the lower grinding roller, and the top of the magnetic suction seat located on the surface of the lower grinding roller has multiple grooves, and the iron adsorption plate is hemispherical.

[0011] Preferably, one side of the trough extends to and penetrates the side wall of the lower grinding roller, an elastic extension layer is integrally formed at the center of the extension plate, a brush is integrally formed on the outside of the iron adsorption plate, and multiple electromagnets are fixedly connected to the bottom of the trough near the edge of the lower grinding roller.

[0012] Preferably, the receiving mechanism includes a discharge trough, which is located on the side of the lower grinding seat near the rotating collecting cylinder. The discharge port of the rotating collecting cylinder penetrates the outer wall of the grinding box, and a collection tank is inserted into the discharge port of the rotating collecting cylinder.

[0013] Preferably, a plurality of universal balls are fixedly connected to the bottom of the upper grinding roller, and a concave moving groove is integrally formed on the side of the support plate near the upper grinding roller, and the universal balls are slidably connected inside the concave moving groove.

[0014] Preferably, an annular elastic membrane is integrally formed on the outside of the two filter screens, and the annular elastic membrane is fixedly connected to the connecting rod on the side near the connecting rod, and the annular elastic membrane is conical.

[0015] Preferably, the bottom of the upper grinding roller has an integrally formed inclined portion on the side near the discharge port, and the inclined portion is parallel to the discharge port position.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In this invention, during the rotary grinding process, an adsorption force is generated between the extension plate and the iron adsorption plate and the magnetic base. During the adsorption process between the iron adsorption plate and the magnetic base, the elastic layer can be dragged by the extension plate. When the elastic layer is dragged, it will deform, thereby causing the connecting reinforcing rib to tilt. When the connecting reinforcing rib tilts, the unqualified graphene material after the first grinding can be poured into the lower grinding roller for secondary grinding. In addition, the filter screen can be vibrated during the rotation of the collection cylinder and the rebound of the filter screen. The continuous vibration strengthens the filter screen's screening of the ground material, enhancing the overall separation and grinding effect. Overall, no manual secondary sorting is required, which is quite convenient. Attached Figure Description

[0018] Figure 1 This is one of the cross-sectional structural schematic diagrams of an embodiment of the present invention;

[0019] Figure 2 This is a second cross-sectional structural schematic diagram of an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the arc-shaped extension plate in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the progressive arrangement of multiple magnetic bases in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the tank structure in an embodiment of the present invention;

[0023] Figure 6This is a schematic diagram of the spherical structure of the iron adsorption plate in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the brush and the elastic extension layer in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the groove extending to the side wall of the lower grinding roller in an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the electromagnet structure in an embodiment of the present invention;

[0027] Figure 10 This is an embodiment of the present invention. Figure 1 A magnified structural diagram of area A in the diagram;

[0028] Figure 11 This is an embodiment of the present invention. Figure 2 A magnified structural diagram of region B in the diagram.

[0029] In the diagram: 100, Grinding box; 101, Upper grinding seat; 102, Upper grinding roller; 103, Inclined feed pipe; 104, Drive motor; 105, Connecting rod; 106, Connecting reinforcing rib; 107, Lower grinding roller; 108, Rotating collection cylinder; 109, Collection hopper; 110, Elastic layer; 111, Extension plate; 112, Iron adsorption plate; 113, Magnetic seat; 114, Lower grinding seat; 115, Discharge trough; 116, Filter screen; 117, Support plate; 200, Tank body; 300, Brush; 301, Elastic extension layer; 302, Electromagnet; 400, Universal ball; 500, Annular elastic membrane; 600, Collection tank; 700, Inclined section. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1, such as Figure 1As shown, this application discloses a fine dispersion grinding mill for graphene production, including a grinding box 100. A drive motor 104 is fixedly connected to the grinding box 100. A connecting rod 105 is fixedly connected to the output shaft of the drive motor 104. A support plate 117 is fixedly connected inside the grinding box 100. A discharge port is opened on the outside of the support plate 117. An upper grinding mechanism and a lower dispersion grinding mechanism are fixedly connected to the outside of the connecting rod 105 respectively. A collection hopper 109 is fixedly connected to the bottom of the support plate 117. A placement hole is opened at the middle position of the bottom of the collection hopper 109.

[0032] The lower grinding mechanism includes a connecting reinforcing rib 106, which is fixedly connected to the outside of the connecting rod 105. A rotating collecting cylinder 108 is fixedly connected to the side of the connecting reinforcing rib 106 away from the connecting rod 105. A lower grinding roller 107 is fixedly connected to the outside of the rotating collecting cylinder 108. An elastic layer 110 is integrally formed on the rotating collecting cylinder 108. Two filter screens 116 are fixedly connected to the elastic layer 110. Two extension plates 111 are fixedly connected to the outside of the elastic layer 110. An iron adsorption plate 112 is fixedly connected to the end of the extension plate 111 away from the filter screens 116. Multiple magnetic seats 113 are fixedly connected inside the lower grinding roller 107. A lower grinding seat 114 is fixedly connected inside the grinding box 100. The lower grinding roller 107 is located on the lower grinding seat 114. A material receiving mechanism is snapped into the bottom of the grinding box 100.

[0033] Specifically, during use, the operator puts the graphene raw material to be ground into the grinding box 100 through the upper grinding mechanism, and starts the drive motor 104 to drive the connecting rod 105 and the upper grinding mechanism to rotate. During the rotation of the upper grinding mechanism, the graphene raw material can be ground once. After the first grinding, the pulverized graphene raw material will fall downward through the discharge port opened on the outside of the support plate 117. After passing through the discharge port, the ground graphene raw material will fall onto the collection hopper 109. The collection hopper 109 is V-shaped and can collect and transport the fallen graphene raw material to the filter screen 116 located in the middle of the collection hopper 109. The graphene raw material falling onto the filter screen 116 is filtered by the filter screen 116 and transported into the rotating collection cylinder 108, and then transported to the external receiving mechanism through the rotating collection cylinder 108. Graphene raw material with insufficient grinding fineness will remain on the filter screen 116.

[0034] like Figure 2 and Figure 11As shown, when the amount of graphene raw material remaining on the filter screen 116 gradually increases, unqualified raw materials will prevent qualified materials from entering the interior of the rotating collection cylinder 108. During the rotation of the connecting rod 105 driven by the drive motor 104, the rotating collection cylinder 108 and the lower grinding roller 107 will rotate through the connecting reinforcing rib 106. When the lower grinding roller 107 rotates, it cooperates with the lower grinding seat 114 to form a secondary grinding process. During the rotation of the rotating collection cylinder 108, the rotating collection cylinder 108 will drive the elastic layer 110 and the extension plate 111 to rotate. During the rotation of the rotating collection cylinder 108 and the extension plate 111, the iron adsorption plate 112 at the lower end of the extension plate 111 will be attracted by the magnetic adsorption seat 113 inside the lower grinding roller 107. Additionally, during the process of the iron adsorption plate 112 being adsorbed by the magnetic base 113, the iron adsorption plate 112 will drag the extension plate 111 closer to the position of the magnetic base 113. When the extension plate 111 is pulled, the extension plate 111 will drive the rotating collection cylinder 108 to deform. During the deformation of the rotating collection cylinder 108, the filter screen 116 will tilt. When the filter screen 116 tilts, the unqualified graphene material on the filter screen 116 will fall onto the lower grinding roller 107 due to the tilt of the connecting reinforcing rib 106. After the unqualified graphene material falls onto the lower grinding roller 107, it will gradually fall between the lower grinding roller 107 and the lower grinding base 114 as the lower grinding roller 107 tilts, thus undergoing secondary grinding.

[0035] Furthermore, as the rotating collection cylinder 108 continues to rotate, when the iron adsorption plate 112 and the magnetic suction seat 113 miss each other, the magnetic suction seat 113 can no longer attract the iron adsorption plate 112. When the iron adsorption plate 112 and the magnetic suction seat 113 are no longer subject to adsorption, the rotating collection cylinder 108 will use its own elasticity to drive the extension plate 111 and the filter screen 116 back to their original positions, thereby re-sealing the holes in the middle part of the collection hopper 109 and continuing the filtration work. When the filter 116 rebounds to its original position through its own elasticity, the entire structure will further vibrate the filter screen 116. The vibration will shake off the material inside the filter screen 116. At the same time, when the rotating collection cylinder 108 drives the filter screen 116 back to its original position, it will hit the collection hopper 109. The impact on the collection hopper 109 will cause the entire collection hopper 109 to vibrate, causing the graphene material on the side wall of the collection hopper 109 to fall onto the filter screen 116, reducing the phenomenon of graphene raw material adhering to the collection hopper 109.

[0036] like Figures 1-2As shown, the upper grinding mechanism includes an upper grinding seat 101, which is fixedly connected to the inside of the grinding box 100. An upper grinding roller 102 is fixedly connected to the outside of the connecting rod 105. The upper grinding roller 102 is located inside the upper grinding seat 101. An inclined feed pipe 103 is connected to the upper grinding box 100. The hopper 109 is located below the support plate 117. An inclined part 700 is integrally formed on the bottom of the upper grinding roller 102 near the discharge port. The inclined part 700 is parallel to the discharge port.

[0037] Specifically, during use, the upper grinding mechanism performs the first grinding process on the graphene raw material. The entire process is driven by the motor 104, which rotates the connecting rod 105. This rotation of the connecting rod 105 causes the upper grinding roller 102 to rotate. As the upper grinding roller 102 rotates, the graphene raw material is fed into the grinding chamber 100 through the inclined feed pipe 103. The graphene raw material inside the grinding chamber 100 gradually enters the area between the upper grinding seat 101 and the upper grinding roller 102. The rotation of the upper grinding roller 102 then grinds the graphene raw material located between the upper grinding seat 101 and the upper grinding roller 102. The material is ground, and the upper grinding roller 102 is triangular in shape, which is adapted to the grinding space inside the upper grinding seat 101. During the grinding process, the ground graphene material is gradually transported to the discharge port of the support plate 117, thereby transporting the ground graphene material to the connecting reinforcing rib 106 for filtration. While the collecting cylinder 108 is continuously rotating, the iron adsorption plate 112 continuously and intermittently adsorbs with the magnetic suction seat 113, thereby intermittently feeding the graphene material onto the lower grinding roller 107. Furthermore, the rebound of the elastic layer 110 causes the filter screen 116 to vibrate intermittently, thereby increasing the screening effect of the filter screen 116.

[0038] like Figure 1 and Figure 2 As shown, the material receiving mechanism includes a discharge trough 115, which is located on the side of the lower grinding base 114 near the rotating collecting cylinder 108. The discharge port of the rotating collecting cylinder 108 penetrates the outer wall of the grinding box 100, and a collection tank 600 is inserted into the discharge port of the rotating collecting cylinder 108.

[0039] Specifically, after the graphene raw material is ground, it needs to be collected. After the lower grinding roller 107 and the lower grinding seat 114 finish grinding the graphene raw material a second time, the graphene raw material will fall into the discharge trough 115. The graphene raw material falling into the discharge trough 115 will fall into the collection tank 600 along with the raw material inside the rotating collection cylinder 108, thus completing the collection of the material.

[0040] like Figure 10As shown, a plurality of universal balls 400 are fixedly connected to the bottom of the upper grinding roller 102. The support plate 117 has an integrally formed concave moving groove on the side near the upper grinding roller 102, and the universal balls 400 are slidably connected inside the concave moving groove.

[0041] Specifically, during use, the upper grinding roller 102 is supported by the universal ball 400 and the groove, which assists in the rotation of the upper grinding roller 102.

[0042] like Figure 11 As shown, an annular elastic membrane 500 is integrally formed on the outside of the two filter screens 116. The annular elastic membrane 500 is fixedly connected to the connecting rod 105 on the side near the connecting rod 105. The annular elastic membrane 500 is conical.

[0043] Specifically, the connection between the filter screen 116 and the connecting rod 105 is strengthened by setting the annular elastic membrane 500, and the graphene material is concentrated at the center of the filter screen 116 by the conical annular elastic membrane 500, so as to avoid a large amount of graphene material accumulating at the edge of the filter screen 116 near the connecting rod 105.

[0044] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, by driving the extension plate 111 and the iron adsorption plate 112 to generate an adsorption force between the magnetic base 113 during the rotary grinding process, the elastic layer 110 can be dragged by the extension plate 111 during the adsorption process between the iron adsorption plate 112 and the magnetic base 113. When the elastic layer 110 is dragged, it will deform, thereby causing the connecting reinforcing rib 106 to tilt. When the connecting reinforcing rib 106 tilts, the unqualified graphene material after the first grinding can be poured into the lower grinding roller 107 for secondary grinding. Furthermore, the filter screen 116 can be vibrated during the rebound process of the rotating collection cylinder 108. By continuously generating vibration, the filter screen 116 strengthens the screening of the ground material, enhances the overall separation and grinding effect, and eliminates the need for manual secondary sorting, which is more convenient.

[0045] Example 2: Considering that when the extension plate 111 drags and rotates the collecting cylinder 108, causing deformation, although the filter screen 116 can tilt to pour the graphene raw material onto the lower grinding roller 107 for secondary grinding, the connecting reinforcing rib 106 will pour all the unqualified graphene raw material onto the lower grinding roller 107 at once when pouring it. Although the lower grinding roller 107 is gradually rotating, a large amount of graphene material will still accumulate on the lower grinding roller 107 during a single pour, making it impossible to perform reasonable dispersion grinding and affecting the secondary grinding effect. To address the above technical problems, this application proposes the following technical solution to solve the above technical problems, specifically:

[0046] like Figures 3-4 As shown, the extension plate 111 and the iron adsorption plate 112 are arranged in an arc shape. The area of ​​the extension plate 111 and the iron adsorption plate 112 away from the elastic layer 110 gradually expands in an arc shape. The extension plate 111 and the iron adsorption plate 112, which gradually expand at the position of the lower grinding roller 107, are used to cause the elastic layer 110 to deform when the iron adsorption plate 112 is adsorbed by the magnetic seat 113. The deformed elastic layer 110 drives the filter screen 116 to tilt to one side, thereby pouring the unqualified graphite particles accumulated above the filter screen 116 onto the arc-shaped extension plate 111. And as the extension plate 111 rotates, the unqualified graphite particles are evenly dispersed onto the lower grinding roller 107 for secondary grinding.

[0047] Specifically, during use, after the extension plate 111 and the iron adsorption plate 112 are adjusted so that the area on the side away from the elastic layer 110 gradually expands in an arc shape, when the iron adsorption plate 112 is adsorbed by the magnetic seat 113 again, causing the filter screen 116 to tilt, the graphene raw material falling on the filter screen 116 will fall onto the arc-shaped extension plate 111. When the extension plate 111 and the iron adsorption plate 112, whose area on the side away from the elastic layer 110 gradually expands in an arc shape, fall graphene raw material on the outer wall, they can receive and disperse the graphene raw material. After receiving and dispersing, as the collecting cylinder 108 rotates, the extension plate 111 rotates, which can evenly disperse the unqualified graphene raw material onto the lower grinding roller 107, thereby reducing the impact of material accumulation on the grinding process when the lower grinding roller 107 performs secondary grinding.

[0048] like Figure 4 As shown, the multiple magnetic holders 113 are divided into two groups, one on the left and one on the right. The magnetic holders 113 in each group are arc-shaped and gradually approach the position of the rotating collecting cylinder 108. The magnetic force of the magnetic holders 113 that gradually approach the position of the rotating collecting cylinder 108 is greater than that of the magnetic holders 113 that gradually move away from the position of the rotating collecting cylinder 108.

[0049] Specifically, during use, the arc-shaped, gradually expanding extension plate 111 and the iron adsorption plate 112 can gradually adsorb onto the multiple magnetic seats 113 in the left and right groups during rotation. As the multiple magnetic seats 113 in the left and right groups gradually adsorb the iron adsorption plate 112, they are arranged in a manner that gradually approaches the rotating collection cylinder 108. During rotation, the iron adsorption plate 112 will first adsorb onto the magnetic seat 113 furthest from the rotating collection cylinder 108, thus slightly pulling and deforming the elastic layer 110. When the elastic layer 110 undergoes slight deformation... The filter screen 116 has a small tilt angle. When the iron adsorption plate 112 gradually adsorbs the magnetic seat 113 near the rotating collection cylinder 108, it will increase the force of the extension plate 111 pulling the elastic layer 110. As the pulling force increases, the tilt angle of the filter screen 116 will increase. The overall tilt angle of the filter screen 116 gradually increases during the rotation adsorption process, thereby gradually pouring the graphene material accumulated on the filter screen 116 onto the extension plate 111 with an arc-shaped area that gradually increases. This further evenly feeds the unqualified graphene raw material onto the lower grinding roller 107, further ensuring the fine dispersion and grinding of the graphene.

[0050] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 1, in this embodiment, the unqualified graphene raw materials poured down from the filter screen 116 can be dispersed by the gradually increasing area extension plate 111 and the iron adsorption plate 112, dispersing the unqualified graphene raw materials to different positions on the lower grinding roller 107, reducing the accumulation of unqualified graphene raw materials. Furthermore, the elastic layer 110 and the filter screen 116 can be gradually tilted by two sets of progressively arranged magnetic suction seats 113, thereby gradually pouring the unqualified graphene raw materials onto the filter screen 116, further reducing the accumulation of unqualified graphene raw materials, and further ensuring the fine dispersion and grinding of graphene.

[0051] Example 3: Considering that although the graphene material on the filter screen 116 will gradually fall onto the lower grinding roller 107 as the filter screen 116 is tilted, some graphene material will still remain on the filter screen 116 and in the filter pores after long-term use. Material remaining on the filter screen 116 or stuck in the filter pores for a long time will cause clogging of the filter screen 116. To address the above technical problems, this application proposes the following technical solution:

[0052] like Figures 5-6 As shown, the magnetic suction seat 113 located near the rotating collection cylinder 108 is disposed on the surface of the lower grinding roller 107. The top of the magnetic suction seat 113 located on the surface of the lower grinding roller 107 has multiple grooves 200, and the iron adsorption plate 112 is hemispherical.

[0053] Specifically, during use, when the arc-shaped extension plate 111 with gradually increasing area and the iron adsorption plate 112 adsorb onto the magnetic seat 113 at the nearest position to the rotating collection cylinder 108, the inclination angle of the filter screen 116 is at its maximum. Furthermore, after setting the iron adsorption plate 112 to a spherical shape, the adsorbed iron adsorption plate 112 gradually comes into contact with the tank 200. This gradual contact causes multiple spherical iron adsorption plates 112 to continuously rise and fall inside the tank 200. As the rotating collection cylinder 108 rotates, it drives... The extension plate 111 and the iron adsorption plate 112 rotate around the rotating collection cylinder 108, generating a moving thrust on the iron adsorption plate 112. Under the moving thrust, the magnetic suction seat 113 with the groove 200 will also generate an adsorption force on the spherical iron adsorption plate 112, thus generating continuous up and down fluctuations. During the continuous up and down fluctuations, the extension plate 111 will continuously vibrate. Under the continuous vibration, the graphene raw material on the filter screen 116 and in the filter holes can be shaken off, reducing the phenomenon of graphene raw material accumulating on the filter screen 116.

[0054] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 2, in this embodiment, the spherical iron adsorption plate 112 continuously contacts the tank 200, which can drive the extension plate 111 to continuously vibrate. Under the condition of continuous vibration, the filter screen 116 can continuously shake in an inclined state. Through continuous shaking and vibration, the graphene raw material located on the filter screen 116 and inside the filter holes is shaken off the filter screen 116, reducing the accumulation of graphene raw material on the filter screen 116 and inside the filter holes of the filter screen 116.

[0055] Example 4: Considering that although the tank 200 can work with the spherical iron adsorption plate 112 to make the extension plate 111 and the filter screen 116 vibrate, some graphene raw material will fall into the tank 200 during the graphene raw material powder falling process, causing accumulation inside the tank 200. To address the above technical problems, this application proposes the following technical solution to solve them:

[0056] like Figures 7-9 As shown, one side of the tank 200 extends to and penetrates the side wall of the lower grinding roller 107. An elastic extension layer 301 is integrally formed at the center of the extension plate 111. A brush 300 is integrally formed on the outside of the iron adsorption plate 112. Multiple electromagnets 302 are fixedly connected to the bottom of the tank 200 near the edge of the lower grinding roller 107.

[0057] like Figure 8 and Figure 9As shown, during use, the graphene material falling into the tank 200 gradually falls along the inclined angle of the tank 200 to the edge of the lower grinding roller 107. The graphene material falling to the edge of the lower grinding roller 107 gradually enters between the lower grinding roller 107 and the lower grinding seat 114, thus completing secondary grinding. When the extension plate 111 and the iron adsorption plate 112 rotate around the rotating collection cylinder 108 and are adsorbed by the magnetic adsorption seat 113, the spherical iron adsorption plate 112 will enter the tank 200 first. At this time, by activating the electromagnet 302 at the bottom of the tank 200, the attraction force on the iron adsorption plate 112 is gradually increased. When the attraction force on the iron adsorption plate 112 gradually increases, the iron adsorption... The plate 112 will cause the elastic extension layer 301 to stretch, thereby causing the brush 300 on the outside of the iron adsorption plate 112 to move along the channel of the tank 200 inside the tank 200. When the brush 300 moves in the channel inside the tank 200, it can clean the graphene material accumulated in the channel inside the tank 200. Although the brush 300 cannot completely push the graphene material out of the tank 200, it can push the graphene material to the edge position near the lower grinding roller 107. Then, with the inertial force generated during the rotation of the lower grinding roller 107, the accumulated graphene material can be flung between the lower grinding roller 107 and the lower grinding seat 114, thus completing the cleaning of the graphene material that has fallen inside the tank 200.

[0058] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 3, in this embodiment, the iron adsorption plate 112 entering the tank 200 is adsorbed laterally by the electromagnet 302. When the iron adsorption plate 112 entering the tank 200 is adsorbed laterally by the electromagnet 302, it can drive the elastic extension layer 301 to be stretched. When the elastic extension layer 301 is stretched, it can drive the iron adsorption plate 112 to move further inside the channel of the tank 200, thereby driving the brush 300 outside the iron adsorption plate 112 to clean the graphene material inside the tank 200 in a timely manner, reducing the accumulation of graphene material inside the tank 200.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fine dispersion grinding mill for graphene production, comprising a grinding chamber (100), a drive motor (104) fixedly connected to the grinding chamber (100), a connecting rod (105) fixedly connected to the output shaft of the drive motor (104), a support plate (117) fixedly connected inside the grinding chamber (100), a discharge port being provided on the support plate (117), and an upper grinding mechanism and a lower grinding mechanism fixedly connected to the outside of the connecting rod (105), characterized in that: The bottom of the support plate (117) is fixedly connected to a material collection hopper (109), and a placement hole is provided at the middle position of the bottom of the material collection hopper (109). The lower grinding mechanism includes a connecting reinforcing rib (106), which is fixedly connected to the outside of the connecting rod (105). A rotating collecting cylinder (108) is fixedly connected to the side of the connecting reinforcing rib (106) away from the connecting rod (105). A lower grinding roller (107) is fixedly connected to the outside of the rotating collecting cylinder (108). An elastic layer (110) is integrally formed on the rotating collecting cylinder (108), and two filter screens (116) are fixedly connected to the elastic layer (110). Two extension plates (111) are fixedly connected to the outside of the elastic layer (110). An iron adsorption plate (112) is fixedly connected to one end of the extension plate (111) away from the filter screen (116). Multiple magnetic seats (113) are fixedly connected inside the lower grinding roller (107). A lower grinding seat (114) is fixedly connected inside the grinding box (100). The lower grinding roller (107) is located on the lower grinding seat (114). A material receiving mechanism is snapped into the bottom of the grinding box (100). The extension plate (111) and the iron adsorption plate (112) are arranged in an arc shape. The area of ​​the extension plate (111) and the iron adsorption plate (112) away from the elastic layer (110) gradually expands in an arc shape. The extension plate (111) and the iron adsorption plate (112) that gradually expand at the position of the lower grinding roller (107) are used to cause the elastic layer (110) to deform when the iron adsorption plate (112) is adsorbed with the magnetic seat (113). The deformed elastic layer (110) drives the filter screen (116) to tilt to one side, thereby pouring the unqualified particles accumulated above the filter screen (116) onto the arc-shaped extension plate (111). And as the extension plate (111) rotates, the unqualified particles are evenly dispersed onto the lower grinding roller (107) for secondary grinding. The magnetic holders (113) are divided into two groups, one on the left and one on the right. The magnetic holders (113) in each group are arc-shaped and gradually approach the rotating collection cylinder (108). The magnetic force of the magnetic holders (113) that gradually approach the rotating collection cylinder (108) is greater than that of the magnetic holders (113) that gradually move away from the rotating collection cylinder (108).

2. The fine dispersing and grinding mill for graphene production according to claim 1, characterized in that: The upper grinding mechanism includes an upper grinding seat (101), which is fixedly connected to the inside of the grinding box (100). An upper grinding roller (102) is fixedly connected to the outside of the connecting rod (105). The upper grinding roller (102) is located inside the upper grinding seat (101). An inclined feed pipe (103) is connected to the grinding box (100). The collecting hopper (109) is located below the support plate (117).

3. The fine dispersing and grinding mill for graphene production according to claim 1, characterized in that: The receiving mechanism includes a discharge trough (115), which is located on the side of the lower grinding seat (114) near the rotating collecting cylinder (108). The discharge port of the rotating collecting cylinder (108) penetrates the outer wall of the grinding box (100), and a collection tank (600) is inserted into the discharge port of the rotating collecting cylinder (108).

4. A fine dispersing and grinding mill for graphene production according to claim 2, characterized in that: The bottom of the upper grinding roller (102) is fixedly connected with a plurality of universal balls (400), and the support plate (117) is integrally formed with a concave moving groove on the side near the upper grinding roller (102), and the universal balls (400) are slidably connected inside the concave moving groove.

5. A fine dispersing and grinding mill for graphene production according to claim 1, characterized in that: The two filters (116) are integrally formed with annular elastic membranes (500) on their exteriors. The annular elastic membranes (500) are fixedly connected to the connecting rods (105) on the side near the connecting rods (105). The annular elastic membranes (500) are conical.

6. A fine dispersing and grinding mill for graphene production according to claim 4, characterized in that: The bottom of the upper grinding roller (102) is integrally formed with an inclined portion (700) on the side near the discharge port.

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