Fine dispersion grinding machine for graphene production

Abstract

The invention discloses a fine dispersion grinding machine for graphene production, and belongs to the technical field of graphene preparation equipment.The fine dispersion grinding machine comprises a grinding box, a driving motor is fixedly connected to the grinding box, a connecting rod is fixedly connected to an output shaft of the driving motor, and a supporting plate is fixedly connected to the interior of the grinding box; a discharging opening is formed in the outer portion of the supporting plate, an upper grinding mechanism and a lower dispersing and grinding mechanism are fixedly connected to the outer portion of the connecting rod, and a containing hole is formed in the middle of the bottom of the collecting hopper; when the connecting reinforcing ribs incline, unqualified graphene materials obtained after primary grinding on the upper portion can be poured onto the lower grinding roller to be ground for the second time, a filter screen can be vibrated in the process that the material collecting barrel is rotated to drive the filter screen to rebound, and screening work of the filter screen on the ground materials is enhanced by continuously generating vibration. And the overall separating and grinding effect is enhanced, manual secondary separation is not needed on the whole, and convenience is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of graphene preparation equipment, and in particular to a fine dispersion grinder for graphene production. Background Art

[0002] The fine dispersion grinder for graphene production is one of the key equipment in the graphene production process. Graphene, as a kind of carbon atom in sp 2 Two-dimensional carbon nanomaterials with hexagonal honeycomb lattices composed of hybrid orbitals have excellent optical, electrical and mechanical properties, and show great application prospects in materials science, micro-nano processing, energy, biomedicine and drug delivery. However, in the process of producing graphene, how to better refine graphite has become a technical difficulty.

[0003] In the patent entitled "A Continuous Multi-stage Grinding and Dispersing Machine for Graphene Preparation" and with the publication number CN110694740A, it is proposed that the following problems exist in the actual operation of grinding graphene by the physical exfoliation method at present: in order to make the ground graphene meet certain standards, it needs to be ground for multiple times. In the multi-stage grinding process, graphene that meets the standards and graphene that does not meet the standards are all mixed together, and graphene that meets the standards occupies a certain grinding space. Therefore, it is difficult for the grinding equipment to fully grind the graphene that does not meet the standards, affecting the overall grinding quality. The multi-stage grinding method is used to grind the graphene, and the graphene that meets the standards and graphene that does not meet the standards can be separated in advance before the subsequent grinding stage, so as to achieve the purpose of improving the subsequent grinding efficiency and grinding quality. However, the method for pre-separating the graphene that does not meet the standards is to separate it by filter mesh, and when it is put into the secondary grinding, it needs to manually put the accumulated materials into the secondary grinding equipment, which is relatively troublesome overall. Therefore, a fine dispersion grinder for graphene production is proposed. Summary of the invention

[0004] The object of the present invention is to provide a fine dispersion grinder for graphene production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fine dispersion grinder for graphene production, comprising a grinding box, a driving motor is fixedly connected to the grinding box, a connecting rod is fixedly connected to the output shaft of the driving motor, a support plate is fixedly connected to the inside of the grinding box, a discharge port is provided on the outside of the support plate, an upper grinding mechanism and a lower dispersion grinding mechanism are respectively fixedly connected to the outside of the connecting rod, a collecting hopper is fixedly connected to the bottom of the supporting plate, and a placement hole is provided at the middle position of the bottom of the collecting hopper;

[0006] Among them, the lower grinding mechanism includes a connecting reinforcement rib, which is fixedly connected to the outside of the connecting rod, and the side of the connecting reinforcement rib away from the connecting rod is fixedly connected to a rotating collection barrel, and the outside of the rotating collection barrel is fixedly connected to a lower grinding roller, and an elastic layer is integrally formed on the rotating collection barrel, and two filter screens are fixedly connected to the elastic layer, and two extension plates are fixedly connected to the outside of the elastic layer, and an iron adsorption plate is fixedly connected to the end of the extension plate away from the filter screen, the interior of the lower grinding roller is fixedly connected to a plurality of magnetic seats, and the interior of the grinding box is fixedly connected to a lower grinding seat, the lower grinding roller is located on the lower grinding seat, and the external bottom of the grinding box is clamped with a material receiving mechanism.

[0007] Preferably, the upper grinding mechanism includes an upper grinding seat, which is fixedly connected to the inside of the grinding box, and the outside of the connecting rod is fixedly connected with an upper grinding roller, which is located inside the upper grinding seat. The grinding box is connected to an inclined feed pipe, and 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, and the area of ​​the extension plate and the iron adsorption plate on one side away from the elastic layer gradually expands in an arc shape. The extension plate and the iron adsorption plate that gradually expand the area toward the position of the lower grinding roller are used for when the elastic layer is deformed due to the adsorption of the iron adsorption plate and the magnetic suction seat, the deformed elastic layer drives the filter to tilt to one side, thereby pouring the unqualified graphite particles accumulated above the filter onto the arc-shaped extension plate, and as the extension plate rotates, the unqualified graphite particles are evenly dispersed on the lower grinding roller for secondary grinding.

[0009] Preferably, the multiple magnetic seats are divided into two groups, one group on each side, and the magnetic seats in each group are arc-shaped and gradually approach the position of the rotating material collecting barrel. The magnetic force of the magnetic seats gradually approaching the position of the rotating material collecting barrel is greater than that of the magnetic seats gradually away from the position of the rotating material collecting barrel.

[0010] Preferably, a magnetic seat close to the rotating collecting barrel is arranged on the surface of the lower grinding roller, a plurality of grooves are provided on the top of the magnetic seat arranged on the surface of the lower grinding roller, and the iron adsorption plate is hemispherical.

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

[0012] Preferably, the material collecting mechanism includes a discharge trough, which is opened on a side of the lower grinding seat close to the rotating collecting barrel, the discharge port of the rotating collecting barrel penetrates the outer wall of the grinding box, and a collection tank is inserted at the discharge port of the rotating collecting barrel.

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

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

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

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, an adsorption force is generated between the extension plate and the iron adsorption plate and the magnetic seat during the rotating grinding process. During the adsorption process between the iron adsorption plate and the magnetic seat, the elastic layer can be dragged by the extension plate. When the elastic layer is dragged, it will be deformed, thereby driving the connecting reinforcement ribs to tilt. When the connecting reinforcement ribs are tilted, unqualified graphene materials after the first grinding above can be poured onto the lower grinding roller for secondary grinding. In addition, the filter screen can be vibrated during the rebound process of the filter screen driven by the rotating collection barrel. By continuously generating vibration, the screening work of the filter screen on the ground material is enhanced, and the overall separation and grinding effect is enhanced. Overall, no manpower is required for secondary sorting, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0021] Figure 4 It is a schematic diagram of the structure of a plurality of magnetic seats arranged in a progressive manner in an embodiment of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the tank body in an embodiment of the present invention;

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

[0024] Figure 7 It 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 It is a schematic diagram of the structure in which the groove body extends to the side wall of the lower grinding roller in an embodiment of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of an electromagnet in an embodiment of the present invention;

[0027] Fig.10 For the embodiment of the present invention Figure 1 A schematic diagram of the enlarged structure of area A;

[0028] Fig.11 For the embodiment of the present invention Figure 2 Schematic diagram of the enlarged structure of area B in .

[0029] In the figure: 100, grinding box; 101, upper grinding seat; 102, upper grinding roller; 103, inclined feed pipe; 104, driving motor; 105, connecting rod; 106, connecting reinforcing ribs; 107, lower grinding roller; 108, rotating collecting barrel; 109, collecting 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, trough body; 300, brush; 301, elastic extension layer; 302, electromagnet; 400, universal ball; 500, annular elastic membrane; 600, collecting tank; 700, inclined portion. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1: Figure 1As shown, the present application discloses a fine dispersion grinding machine for graphene production, comprising a grinding box 100, a driving motor 104 is fixedly connected to the grinding box 100, a connecting rod 105 is fixedly connected to the output shaft of the driving motor 104, a supporting plate 117 is fixedly connected to the inside of the grinding box 100, a material discharge port is provided on the outside of the supporting plate 117, an upper grinding mechanism and a lower dispersion grinding mechanism are respectively fixedly connected to the outside of the connecting rod 105, a collecting hopper 109 is fixedly connected to the bottom of the supporting plate 117, and a placement hole is provided at the middle position of the bottom of the collecting hopper 109;

[0032] Among them, the lower grinding mechanism includes a connecting reinforcement rib 106, which is fixedly connected to the outside of the connecting rod 105, and the side of the connecting reinforcement rib 106 away from the connecting rod 105 is fixedly connected to a rotating collecting barrel 108, and the outside of the rotating collecting barrel 108 is fixedly connected to a lower grinding roller 107, and an elastic layer 110 is integrally formed on the rotating collecting barrel 108, and two filter screens 116 are fixedly connected to the elastic layer 110, and two extension plates 111 are fixedly connected to the outside of the elastic layer 110, and the end of the extension plate 111 away from the filter screen 116 is fixedly connected to an iron adsorption plate 112, the interior of the lower grinding roller 107 is fixedly connected to a plurality of magnetic seats 113, the interior of the grinding box 100 is fixedly connected to a lower grinding seat 114, the lower grinding roller 107 is located on the lower grinding seat 114, and the external bottom of the grinding box 100 is clamped with a material receiving mechanism.

[0033] Specifically, during use, the staff will put the graphene raw materials to be ground into the grinding box 100 through the upper grinding mechanism, and start the driving 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 materials can be ground once. After one grinding, the crushed graphene raw materials will fall downward through the discharge port opened on the outside of the support plate 117, and the ground graphene raw materials will fall onto the collecting hopper 109 after passing the discharge port. The collecting hopper 109 is V-shaped as a whole, and the fallen graphene raw materials can be concentratedly transported to the filter screen 116 located in the middle position of the collecting hopper 109. The graphene raw materials that fall on the filter screen 116 are filtered by the filter screen 116 and transported to the inside of the rotating collecting barrel 108, and then transported to the external collecting mechanism through the rotating collecting barrel 108, while the graphene raw materials with insufficient grinding fineness will remain on the filter screen 116.

[0034] like Figure 2 and Fig.11As shown, when the amount of graphene raw materials retained on the filter screen 116 gradually increases, unqualified raw materials will block qualified materials from entering the interior of the rotating collection barrel 108, and when the driving motor 104 drives the connecting rod 105 to rotate, the rotating collection barrel 108 and the lower grinding roller 107 will be driven to rotate through the connecting reinforcing ribs 106, and when the lower grinding roller 107 rotates, it cooperates with the lower grinding seat 114 to form secondary grinding, and in the process of the rotating collection barrel 108 rotating, the rotating collection barrel 108 will drive the elastic layer 110 and the extension plate 111 to rotate, and in the process of the rotating collection barrel 108 and the extension plate 111 rotating, the iron adsorption plate 112 at the lower end of the extension plate 111 will be attracted by the magnetic seat 113 inside the lower grinding roller 107. Attached, when the iron adsorption plate 112 is adsorbed by the magnetic seat 113, the iron adsorption plate 112 will drag the extension plate 111 to approach the position of the magnetic seat 113. When the extension plate 111 is pulled, the extension plate 111 will drive the rotating collection barrel 108 to deform. When the rotating collection barrel 108 is deformed, the filter screen 116 will be tilted. When the filter screen 116 is tilted, the unqualified graphene material on the filter screen 116 will fall onto the lower grinding roller 107 due to the tilt of the connecting reinforcement rib 106. When 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 seat 114 as the lower grinding roller 107 tilts, thereby performing secondary grinding.

[0035] Furthermore, as the rotating collection barrel 108 continues to rotate, when the iron adsorption plate 112 and the magnetic seat 113 miss each other, the adsorption force of the magnetic seat 113 cannot be adsorbed to the iron adsorption plate 112. When the iron adsorption plate 112 and the magnetic seat 113 are no longer adsorbed, the rotating collection barrel 108 will drive the extension plate 111 and the filter screen 116 to return to their original positions through its own elasticity, thereby re-blocking the hole in the middle part of the collection hopper 109 and continuing the filtering work. When 08 rebounds to the original position through its own elasticity, the whole body will further drive the filter screen 116 to vibrate, and the material inside the filter holes of the filter screen 116 will be shaken out by the vibration. At the same time, the rotating collecting barrel 108 will hit the collecting hopper 109 when driving the filter screen 116 to return to the original position, thereby causing the collecting hopper 109 to vibrate as a whole by hitting the collecting hopper 109, so that the graphene material located on the side wall of the collecting hopper 109 falls onto the filter screen 116, thereby reducing the phenomenon of graphene raw materials adhering to the collecting hopper 109.

[0036] like Figure 1-Figure 2As shown, the upper grinding mechanism includes an upper grinding seat 101, which is fixedly connected to the inside of the grinding box 100, and the 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, and the grinding box 100 is connected to an inclined feed pipe 103. The collecting hopper 109 is located below the support plate 117, and the bottom of the upper grinding roller 102 is integrally formed with an inclined portion 700 near the discharge port, and the inclined portion 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, and the entire structure is driven by the driving motor 104 to drive the connecting rod 105 to rotate. The connecting rod 105 drives the upper grinding roller 102 to rotate during the rotation. During the rotation of the upper grinding roller 102, the graphene raw material is fed into the grinding box 100 through the inclined feed pipe 103. The graphene raw material entering the grinding box 100 gradually enters the middle position between the upper grinding seat 101 and the upper grinding roller 102. The upper grinding roller 102 rotates to grind the graphene raw material located in the middle position 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 as a whole, which is compatible with the grinding space inside the upper grinding seat 101. During the grinding process, the ground graphene raw material will be gradually transported to the discharge port of the support plate 117, thereby transporting the ground graphene raw material to the connecting reinforcing rib 106 for filtration, and while the collecting barrel 108 is continuously rotated, the iron adsorption plate 112 continues to generate intermittent adsorption with the magnetic suction seat 113, thereby intermittently putting the graphene raw material onto the lower grinding roller 107, and the rebound of the elastic layer 110 drives the filter screen 116 to shake intermittently, thereby increasing the screening effect of the filter screen 116.

[0038] like Figure 1 and Figure 2 As shown, the material collecting mechanism includes a discharge trough 115, which is opened on one side of the lower grinding seat 114 close to the rotating collecting barrel 108. The discharge port of the rotating collecting barrel 108 passes through the outer wall of the grinding box 100, and a collection tank 600 is inserted at the discharge port of the rotating collecting barrel 108.

[0039] Specifically, after the graphene raw material is ground, it is necessary to collect the graphene raw material. After the lower grinding roller 107 and the lower grinding seat 114 have completed the secondary grinding of the graphene raw material, 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 together with the raw material inside the rotating collection barrel 108, thereby completing the collection of the material.

[0040] like Fig.10As shown, a plurality of universal balls 400 are fixedly connected to the bottom of the upper grinding roller 102, and a concave movable groove is integrally formed on one side of the support plate 117 close to the upper grinding roller 102, and the universal balls 400 are slidably connected inside the concave movable groove.

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

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

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

[0044] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the prior art, in the present embodiment, by driving the extension plate 111 and the iron adsorption plate 112 and the magnetic seat 113 to generate an adsorption force during the rotating 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 seat 113, and the elastic layer 110 will be deformed when being dragged, thereby driving the connecting reinforcement rib 106 to tilt, and when the connecting reinforcement rib 106 is tilted, the unqualified graphene material after the first grinding above can be poured into the lower grinding roller 107 for secondary grinding, and the collecting barrel 108 can be rotated to drive the filter screen 116 to vibrate during the rebound process, and the continuous vibration can enhance the screening work of the filter screen 116 on the ground material, enhance the overall separation and grinding effect, and do not require manpower for secondary sorting as a whole, which is more convenient.

[0045] Embodiment 2: Considering that when the extension plate 111 drags and rotates the collecting barrel 108 to cause deformation, although the filter screen 116 can be tilted to pour the graphene raw material onto the lower grinding roller 107 for secondary grinding, the connecting reinforcing ribs 106 will pour all the unqualified graphene raw materials onto the lower grinding roller 107 at one time when pouring unqualified graphene raw materials. Although the lower grinding roller 107 is gradually rotating, a large amount of graphene materials will still accumulate on the lower grinding roller 107 in the case of one-time pouring, and reasonable dispersed grinding cannot be performed, affecting the secondary grinding effect. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0046] like Figure 3-Figure 4 As shown, the extension plate 111 and the iron adsorption plate 112 are arranged in an arc shape, and the area of ​​the side of the extension plate 111 and the iron adsorption plate 112 away from the elastic layer 110 is gradually expanded in an arc shape, and the extension plate 111 and the iron adsorption plate 112 whose areas are gradually expanded toward the position of the lower grinding roller 107 are used for when the iron adsorption plate 112 and the magnetic suction seat 113 are adsorbed to cause the elastic layer 110 to deform, 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 on the lower grinding roller 107 for secondary grinding.

[0047] Specifically, during use, the extension plate 111 and the iron adsorption plate 112 are adjusted as a whole to gradually expand the area of ​​the side away from the elastic layer 110 in an arc shape. When the iron adsorption plate 112 is adsorbed by the magnetic seat 113 again to drive the filter screen 116 to tilt, the graphene raw material poured from the filter screen 116 will fall onto the extension plate 111 with an arc-shaped surface. When the extension plate 111 and the iron adsorption plate 112 with the area of ​​the side away from the elastic layer 110 gradually expand in an arc shape, the graphene raw material can be received and dispersed when it falls on the outer wall surface. After receiving and dispersing, the rotating collection barrel 108 drives the extension plate 111 to rotate, and the unqualified graphene raw material can be evenly dispersed on 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, multiple magnetic seats 113 are divided into two groups, one group on each side. The magnetic seats 113 in each group are arc-shaped and gradually approach the position of the rotating collecting barrel 108. The magnetic force of the magnetic seats 113 gradually approaching the position of the rotating collecting barrel 108 is greater than that of the magnetic seats 113 gradually moving away from the rotating collecting barrel 108.

[0049] Specifically, during use, the arc-shaped extension plate 111 and the iron adsorption plate 112, which are gradually expanding in area, can gradually be adsorbed with the left and right groups of multiple magnetic seats 113 during the rotation process. In the process of the left and right groups of multiple magnetic seats 113 gradually adsorbing the iron adsorption plate 112, the left and right groups of multiple magnetic seats 113 are arranged in a manner of gradually approaching the rotating collection barrel 108. The iron adsorption plate 112 will first be adsorbed with the magnetic seat 113 farthest from the rotating collection barrel 108 during the rotational movement, thereby slightly pulling the elastic layer 110 to deform. When the elastic layer 110 is slightly deformed, The inclination angle of the filter 116 is relatively small. When the iron adsorption plate 112 gradually adsorbs the magnetic seat 113 near the rotating collection barrel 108, the force of the extension plate 111 pulling the elastic layer 110 will increase. When the pulling force increases, the inclination angle of the filter 116 will increase, and the inclination angle of the filter 116 will gradually increase during the rotating adsorption process, so that the graphene material accumulated on the filter 116 is gradually poured onto the extension plate 111 with a gradually increasing arc-shaped area, so that the unqualified graphene raw materials are further evenly put into the lower grinding roller 107, and the fine dispersion and grinding of the graphene is further ensured.

[0050] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to embodiment one, in this embodiment, the unqualified graphene raw materials poured down from the filter screen 116 can be dispersed by the extension plate 111 and the iron adsorption plate 112 with gradually increasing areas, and the unqualified graphene raw materials can be dispersed to different positions on the lower grinding roller 107 to reduce the accumulation of unqualified graphene raw materials, and the elastic layer 110 and the filter screen 116 can also be driven to gradually increase the inclination angle through two groups of multiple magnetic suction seats 113 arranged in a progressive manner, thereby completing the gradual pouring of unqualified graphene raw materials on the filter screen 116, further reducing the accumulation of unqualified graphene raw materials, and further ensuring the fine dispersion and grinding of graphene.

[0051] Embodiment 3: Considering that as the filter screen 116 tilts, the graphene material on the filter screen 116 will gradually fall onto the lower grinding roller 107, but after long-term use, some graphene materials will still remain on the filter screen 116 and in the filter holes of the filter screen 116. The materials that remain on the filter screen 116 or are stuck in the filter holes for a long time will cause the filter screen 116 to be blocked. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0052] like Figure 5-Figure 6 As shown, the magnetic seat 113 is arranged on the surface of the lower grinding roller 107 near the rotating collecting barrel 108, and a plurality of grooves 200 are provided on the top of the magnetic seat 113 arranged on the surface of the lower grinding roller 107, and the iron adsorption plate 112 is hemispherical.

[0053] Specifically, during use, when the arc-shaped extension plate 111 and the iron adsorption plate 112 with gradually increasing arc area are adsorbed with the magnetic seat 113 at the position closest to the rotating collection barrel 108, the inclination angle of the filter screen 116 is the largest, and after the iron adsorption plate 112 is set to a spherical shape, the adsorbed iron adsorption plate 112 will gradually contact the tank body 200. When gradually contacting the tank body 200, multiple spherical iron adsorption plates 112 will continuously rise and fall inside the tank body 200, and the rotation of the rotating collection barrel 108 will drive The extension plate 111 and the iron adsorption plate 112 rotate around the rotating collecting barrel 108, and generate a moving thrust for the iron adsorption plate 112, and under the moving thrust, the magnetic suction seat 113 with a groove body 200 will generate an adsorption force on the spherical iron adsorption plate 112, thereby generating continuous up and down fluctuations. In the process of continuous up and down fluctuations, the extension plate 111 will be driven to vibrate continuously. Under the condition of continuous vibration, the graphene raw materials on the filter screen 116 and in the filter holes can be shaken off, thereby reducing the phenomenon of graphene raw materials accumulating on the filter screen 116.

[0054] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the second embodiment, in the present embodiment, the spherical iron adsorption plate 112 can drive the extension plate 111 to vibrate continuously when it is in continuous contact with the trough body 200, and the filter screen 116 can be driven to continuously shake in an inclined state when it is continuously vibrating. The graphene raw material on the filter screen 116 and inside the filter holes can be shaken off the filter screen 116 through continuous shaking and vibration, thereby reducing the accumulation of graphene raw material on the filter screen 116 and inside the filter holes of the filter screen 116.

[0055] Embodiment 4: Considering that the trough body 200 can cooperate with the spherical iron adsorption plate 112 to make the extension plate 111 and the filter screen 116 vibrate, some graphene raw materials will fall into the trough body 200 during the falling process of the graphene raw material powder, causing accumulation inside the trough body 200. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

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

[0057] like Figure 8 and Fig. 9As shown, during use, the graphene material that falls into the trough body 200 will gradually fall to the edge of the lower grinding roller 107 along the inclination angle of the trough body 200, and the graphene material that falls to the edge of the lower grinding roller 107 will gradually enter between the lower grinding roller 107 and the lower grinding seat 114, thereby completing the secondary grinding, and when the extension plate 111 and the iron adsorption plate 112 rotate around the rotating collection barrel 108 and are adsorbed by the magnetic seat 113, the spherical iron adsorption plate 112 will first enter the trough body 200, and at this time, the electromagnet 302 at the bottom of the trough body 200 is started to gradually increase the suction force on the iron adsorption plate 112. When the suction force on the iron adsorption plate 112 gradually increases, the iron adsorption The plate 112 will drive the elastic extension layer 301 to stretch, thereby driving the brush 300 outside the iron adsorption plate 112 to move along the groove of the trough body 200 inside the trough body 200. When the brush 300 moves in the groove inside the trough body 200, the graphene material accumulated in the groove inside the trough body 200 can be cleaned. Although the brush 300 cannot completely push the graphene raw material out of the trough body 200, it can push the graphene raw material to the edge position close to the lower grinding roller 107, so that the inertial force generated during the rotation of the lower grinding roller 107 can swing the accumulated graphene materials between the lower grinding roller 107 and the lower grinding seat 114, thereby completing the cleaning of the graphene raw materials that have fallen into the trough body 200 as a whole.

[0058] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to embodiment three, in the present embodiment, the iron adsorption plate 112 entering the interior of the trough body 200 is laterally adsorbed by the electromagnet 302. When the iron adsorption plate 112 entering the interior of the trough body 200 is laterally adsorbed by the electromagnet 302, the elastic extension layer 301 can be driven to stretch. When the elastic extension layer 301 is stretched, the iron adsorption plate 112 can be driven to move further inside the groove of the trough body 200, thereby driving the brush 300 outside the iron adsorption plate 112 to clean the graphene material inside the trough body 200 in time, thereby reducing the accumulation of graphene material inside the trough body 200.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fine dispersion grinding machine for graphene production, comprising a grinding box (100), wherein a driving motor (104) is fixedly connected to the grinding box (100), an output shaft of the driving motor (104) is fixedly connected to a connecting rod (105), a support plate (117) is fixedly connected to the inside of the grinding box (100), a discharge port is provided on the outside of the supporting plate (117), and an upper grinding mechanism and a lower dispersion grinding mechanism are 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 collecting hopper (109), and a placement hole is provided at the middle position of the bottom of the collecting hopper (109); The lower grinding mechanism comprises a connecting reinforcing rib (106), wherein the connecting reinforcing rib (106) is fixedly connected to the outside of the connecting rod (105), and a rotating collecting barrel (108) is fixedly connected to the side of the connecting reinforcing rib (106) away from the connecting rod (105), and a lower grinding roller (107) is fixedly connected to the outside of the rotating collecting barrel (108), and an elastic layer (110) is integrally formed on the rotating collecting barrel (108), and two filter screens (116) are fixedly connected to the elastic layer (110). The elastic layer (110) is fixedly connected to the outside with two extension plates (111), and one end of the extension plate (111) away from the filter (116) is fixedly connected to an iron adsorption plate (112), the lower grinding roller (107) is fixedly connected to the inside with a plurality of magnetic seats (113), the grinding box (100) is fixedly connected to the inside with a lower grinding seat (114), the lower grinding roller (107) is located on the lower grinding seat (114), and the external bottom of the grinding box (100) is clamped with a material receiving mechanism.

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

3. A fine dispersion grinder for graphene production according to claim 1, characterized in that: The extension plate (111) and the iron adsorption plate (112) are arranged in an arc shape, and the area of ​​the side 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) whose areas are gradually expanded toward the position of the lower grinding roller (107) are used for when the iron adsorption plate (112) and the magnetic suction seat (113) adsorb and cause the elastic layer (110) to deform, 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.

4. A fine dispersion grinder for graphene production according to claim 1, characterized in that: The plurality of magnetic seats (113) are divided into two groups, one group on each side, and the magnetic seats (113) in each group are arc-shaped and gradually approach the position of the rotating material collecting barrel (108). The magnetic force of the magnetic seats (113) gradually approaching the position of the rotating material collecting barrel (108) is greater than that of the magnetic seats (113) gradually away from the rotating material collecting barrel (108).

5. A fine dispersion grinder for graphene production according to claim 1, characterized in that: A magnetic seat (113) is arranged on the surface of the lower grinding roller (107) near the rotating collecting barrel (108), and a plurality of grooves (200) are provided on the top of the magnetic seat (113) arranged on the surface of the lower grinding roller (107), and the iron adsorption plate (112) is hemispherical.

6. A fine dispersion grinder for graphene production according to claim 5, characterized in that: One side of the trough body (200) extends to the side wall of the lower grinding roller (107) 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); and a plurality of electromagnets (302) are fixedly connected to the bottom of the trough body (200) near the edge of the lower grinding roller (107).

7. A fine dispersion grinder for graphene production according to claim 1, characterized in that: The material collecting mechanism includes a discharge trough (115), and the discharge trough (115) is opened on a side of the lower grinding seat (114) close to the rotating collecting barrel (108). The discharge port of the rotating collecting barrel (108) passes through the outer wall of the grinding box (100), and a collection tank (600) is inserted at the discharge port of the rotating collecting barrel (108).

8. A fine dispersion grinder for graphene production according to claim 2, characterized in that: A plurality of universal balls (400) are fixedly connected to the bottom of the upper grinding roller (102); a concave movable groove is integrally formed on one side of the support plate (117) close to the upper grinding roller (102); and the universal balls (400) are slidably connected inside the concave movable groove.

9. The fine dispersion grinder for graphene production according to claim 1, characterized in that: An annular elastic membrane (500) is integrally formed on the outside of the two filter screens (116), and the annular elastic membrane (500) is fixedly connected to the connecting rod (105) at a side close to the connecting rod (105), and the annular elastic membrane (500) is conical.

10. The fine dispersion grinder for graphene production according to claim 8, characterized in that: An inclined portion (700) is integrally formed on one side of the bottom of the upper grinding roller (102) close to the discharge port, and the inclined portion (700) is parallel to the position of the discharge port.

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