Carbon nanotube slurry preparation grinding device

Abstract

The utility model relates to a carbon nanotube slurry preparation grinding device which comprises a base, a grinding cylinder, an equipment bin and a driving device, the grinding cylinder is horizontally arranged on the base through a support, one end of the grinding cylinder is connected with the equipment bin, and a grinding dispersion mechanism is arranged in the grinding cylinder. The grinding and dispersing mechanism is driven by a driving device arranged on the equipment bin and rotates in the grinding cylinder, the grinding and dispersing mechanism comprises a first rotating disc, a second rotating disc and a grinding and dispersing assembly, and the first rotating disc is rotationally arranged at one end of the grinding cylinder; the second rotating disc is rotationally arranged in the middle of the grinding cylinder and divides an inner cavity of the grinding cylinder into a grinding cavity and a dispersing cavity, and the first rotating disc and the second rotating disc are connected through a connecting shaft and are driven by a driving device to synchronously rotate; through holes are formed in the surface of the second rotating disc; a plurality of grinding and dispersing assemblies are rotationally arranged on the first rotating disc and the second rotating disc, slurry is subjected to rough grinding treatment through grinding rollers in a grinding cavity, large particles in the slurry are smashed, the slurry gradually flows into a dispersing cavity along with the slurry so as to be further sanded, and the mixing uniformity in the slurry is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to slurry grinding equipment technical field, especially in kind of carbon nanotube slurry preparation grinding device. BACKGROUND

[0002] Carbon nanotube master batch is composed of carbon nanotube and conductive polymer, and it has excellent conductivity. The preparation process of carbon nanotube master batch is: pulp preparation-ball milling-toasting-pelletizing-drying. In the grinding process, the carbon nanotube master batch needs to be cut and ground into carbon nanotube master batch powder with a particle size of 150 to 400 nm, which facilitates subsequent master batch preparation and avoids uneven size of carbon nanotube master batch in the subsequent pulp preparation process, which affects the purity and uniformity of the subsequent slurry. Patent No. CN202311781690.4 discloses a carbon nanotube master batch preparation pretreatment system. The grinding device in the application grinds the carbon nanotube slurry by using an upper and lower grinding disc method. This grinding method reduces the flowability of the slurry, has low grinding efficiency, and also easily leads to uneven mixing of the slurry inside, and has limited crushing effect on larger particles inside the slurry. SUMMARY

[0003] The utility model discloses a kind of carbon nanotube slurry preparation grinding devices to solve the problems such as low grinding efficiency of grinding device in prior art, poor mixing uniformity and unable to grind and crush larger particles.

[0004] The specific technical solutions are as follows:

[0005] A kind of carbon nanotube slurry preparation grinding device, including base, grinding cylinder, equipment bin, drive device, the base is horizontally provided with the grinding cylinder by support, grinding cylinder one end is open and is connected with the equipment bin, there is grinding dispersion mechanism in grinding cylinder, grinding dispersion mechanism is driven by drive device arranged on equipment bin and rotates in grinding cylinder, the grinding dispersion mechanism includes first rotating disc, second rotating disc, grinding dispersion component, the first rotating disc is rotationally arranged in the open end of grinding cylinder and is closed, the second rotating disc is rotationally arranged in the middle of grinding cylinder and separates the inner cavity of grinding cylinder to form grinding chamber and dispersion chamber, first rotating disc and second rotating disc are connected by connecting shaft and are driven by drive device to rotate synchronously;Second rotating disc surface is provided with a plurality of through holes for slurry flow;The first rotating disc and the second rotating disc are rotationally provided with a plurality of grinding dispersion components on bearing, the shaft end of each grinding dispersion component extends into the equipment bin and is provided with a rotating gear, the centers of a plurality of rotating gears are engaged with a fixed gear, and the fixed gear is fixed in the equipment bin by a fixed sleeve, each grinding dispersion component is driven to rotate by the grinding dispersion mechanism and the rotating gear and the fixed gear cooperate;Grinding dispersion component includes grinding roller and stirring rod arranged at one end of grinding roller, the grinding roller is located in grinding chamber, each grinding roller is attached to the inner wall of grinding chamber, and adjacent grinding rollers are also attached to each other;The stirring rod is located in the dispersion chamber, and the stirring blades on each stirring rod are arranged in a staggered manner.

[0006] Further, the center of the first rotating disc is fixedly connected with the connecting shaft, one end of the connecting shaft is connected with the center of the second rotating disc, and the other end of the connecting shaft is driven to rotate by the drive device.

[0007] Further, one end of the fixed sleeve is fixedly connected with the outer wall of the reduction gear box, and the fixed sleeve is sleeved outside the connecting rod and rotationally connected with the connecting rod by a bearing.

[0008] Further, the diameter of the grinding chamber is larger than the diameter of the dispersion chamber, and the connection between the grinding chamber and the dispersion chamber is tapered.

[0009] Further, the two ends of the grinding roller are tapered and contracted, and the tapered and contracted end of the grinding roller close to the equipment bin is provided with a feeding port.

[0010] Further, the diameter of the through hole is smaller than the diameter of the grinding medium in the dispersion chamber.

[0011] The beneficial effects of the present application are as follows:

[0012] (1) The grinding device of the utility model grinds carbon nanotube slurry, first carries out rough grinding treatment to the slurry through the grinding roller in the grinding cavity, and the big particles in the slurry are crushed, and the slurry gradually flows into the dispersion cavity for further sanding treatment, thereby effectively ensuring the uniformity of the internal mixing of the slurry and improving the grinding efficiency.

[0013] (2) Each grinding and dispersion assembly in the grinding mechanism revolves with the rotating disc under the driving of the driving motor, and each stirring assembly rotates through the cooperation of the rotating gear and the fixed gear, so that the adjacent grinding rollers and the grinding rollers and the inner wall of the grinding cavity move relatively while applying pressure shear force and friction force to the slurry, thereby effectively improving the grinding quality. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model embodiment 1.

[0015] Figure 2 It is a sectional view schematic view of the grinding cavity in the utility model embodiment 1.

[0016] Figure 3 It is a structural schematic view of the utility model embodiment 2.

[0017] Figure 4 It is a sectional view schematic view of the grinding cavity in the utility model embodiment 2.

[0018] Explanation of reference numerals: base 1, grinding cylinder 2, grinding cavity 21, dispersion cavity 22, feeding port 23, discharging port 24, equipment bin 3, driving motor 4, speed reducer gear box 41, first rotating disc 5, connecting shaft 51, spiral blade 511, second rotating disc 6, through hole 61, grinding and dispersion assembly 7, grinding roller 71, stirring rod 72, stirring blade 721, fixed gear 8, fixed sleeve 81, rotating gear 9. DETAILED DESCRIPTION

[0019] In order to make the technical scheme of the utility model more clear and explicit, the utility model is further described below in combination with the drawings, and any equivalent replacement and conventional reasoning of the technical features of the technical scheme of the utility model falls within the protection scope of the utility model. The fixed connection and fixed setting mentioned in the utility model are general connection modes in the mechanical field, and welding, bolt and nut connection and screw connection can be used.

[0020] In the description of the utility model, it needs to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0021] Embodiment 1

[0022] Please refer to the accompanying Figures 1-2 The embodiment provides a kind of carbon nanotube slurry preparation grinding device, including base 1, grinding cylinder 2, equipment bin 3, driving device, the grinding cylinder 2 is horizontally arranged on the base 1 by support, and one end of the grinding cylinder 2 is provided with opening and is connected with the equipment bin 3, there is grinding dispersion mechanism in the grinding cylinder 2, grinding dispersion mechanism is driven by driving device arranged on the equipment bin 3 and rotates in the grinding cylinder 2, grinding dispersion mechanism includes first rotating disc 5, second rotating disc 6, grinding dispersion component 7, first rotating disc 5 is rotationally arranged at the opening end of grinding cylinder 2 and is closed, second rotating disc 6 is rotationally arranged in the middle of grinding cylinder 2 and separates the inner cavity of grinding cylinder 2 to form grinding cavity 21 and dispersion cavity 22, first rotating disc 5 and second rotating disc 6 are connected by connecting shaft 51 between and driven by driving device to rotate synchronously;Second rotating disc 6 surface is uniformly provided with a plurality of through holes 61 for slurry flow circulation.The same position of first rotating disc 5 and second rotating disc 6 is provided with four round holes, and the four round holes are respectively rotationally provided with four grinding dispersion components by bearing, the shaft end of each grinding dispersion component is inserted into the equipment bin 3 and is provided with rotating gear 9, the center of four rotating gears 9 is engaged with a fixed gear 8, and the fixed gear 8 is fixed in the equipment bin by fixed sleeve 81, and grinding dispersion mechanism is rotated by driving device, and each grinding dispersion component 7 is driven to rotate under the cooperation of rotating gear 9 and fixed gear 8.Grinding dispersion component includes grinding roller 71 and stirring rod 72 arranged at one end of grinding roller 71, and grinding roller 71 is located in grinding cavity 21, and each grinding roller 71 is attached to the inner wall of grinding cavity 21, grinding lining is arranged on the inner wall of grinding cavity for cooperation with grinding roller, and adjacent grinding rollers 71 are also attached to each other, and carbon nano slurry is coarsely ground;Stirring rod 72 is located in dispersion cavity 22, and the stirring blades 721 on each stirring rod 72 are arranged in staggered manner, so that the stirring rod 72 drives slurry and grinding medium to overturn by stirring blade 721 to perform fine grinding treatment.

[0023] In the embodiment, the center of the first rotating disc 5 is horizontally provided with a connecting shaft 51 fixedly connected therewith, one end of the connecting shaft 51 is connected with the center of the second rotating disc 6, and the other end of the connecting shaft 51 is driven to rotate by a driving device, which comprises a driving motor 4 and a speed reducer gear box 41, the driving motor 4 drives the connecting shaft 51 to rotate through the speed reducer gear box 41. One end of the fixed sleeve 81 is fixedly connected with the outer wall of the speed reducer gear box 41, and the fixed sleeve 81 is sleeved outside the connecting rod and rotationally connected with the connecting rod through a bearing.

[0024] In the embodiment, the diameter of the grinding cavity 21 is larger than that of the dispersion cavity 22, and the connection between the grinding cavity 21 and the dispersion cavity 22 is provided with a tapered transition, which ensures that the slurry in the grinding cavity 21 flows to the dispersion cavity 22 when the amount of the slurry is small.

[0025] In the embodiment, the two ends of the grinding roller 71 are provided with tapered shrinkage, and the tapered shrinkage end of the grinding roller 71 close to the equipment bin 3 is provided with the feeding port 23, which ensures that the slurry can smoothly immerse into the grinding cavity 21, and one end of the dispersion cavity 22 is provided with the discharging port 24.

[0026] In the embodiment, the diameter of the through hole 61 is smaller than the diameter of the grinding medium in the dispersion cavity 22, so as to ensure that the grinding medium will not be stuck into the through hole 61 or immersed into the grinding cavity 21.

[0027] In work, the driving motor 4 drives the whole grinding and dispersion mechanism to rotate in the grinding cylinder 2 through the connecting shaft 51, and each grinding and dispersion assembly 7 rotates under the cooperation of the rotating gear 9 and the fixed gear 8, so as to improve the shear force and friction force of the slurry. It is ensured that the slurry is first subjected to coarse grinding treatment to crush the coarse particles of the raw material, so as to provide primary particle size suitable for further processing, and then subjected to sand grinding treatment to achieve high fineness and uniform dispersion.

[0028] Embodiment 2

[0029] Please refer to the accompanying drawings Figures 3-4 In order to ensure that the slurry in the grinding cavity 21 can smoothly flow to the dispersion cavity 22, the embodiment is different from the embodiment 1 in that the connecting shaft 51 is located at the center of the four grinding rollers 71, and the connecting shaft 51 is provided with a spiral blade 511, the slurry is gradually moved to the dispersion cavity 22 direction through the spiral blade 511 by the rotation of the connecting shaft 51, so as to reduce the backflow of the slurry in the dispersion cavity 22 to the grinding cavity 21.

[0030] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A carbon nanotube slurry preparation grinding device, comprising a base (1), a grinding cylinder (2), a device bin (3), a driving device, the grinding cylinder (2) is horizontally arranged on the base (1) through a support, one end of the grinding cylinder (2) is provided with an opening and connected with the device bin (3), and a grinding and dispersing mechanism is arranged in the grinding cylinder (2), the grinding and dispersing mechanism is driven by the driving device arranged on the device bin (3) and rotates in the grinding cylinder (2), characterized in that, The grinding and dispersing mechanism comprises a first rotating disc (5), a second rotating disc (6) and a grinding and dispersing assembly (7), the first rotating disc (5) is rotatably arranged at the opening end of the grinding cylinder (2) and closes the opening end, the second rotating disc (6) is rotatably arranged at the middle part of the grinding cylinder (2) and divides the inner cavity of the grinding cylinder (2) into a grinding cavity (21) and a dispersing cavity (22), the first rotating disc (5) and the second rotating disc (6) are connected by a connecting shaft (51) and are driven to rotate synchronously by a driving device, a plurality of through holes (61) for slurry flow are formed on the surface of the second rotating disc (6), a plurality of grinding and dispersing assemblies are rotatably arranged on the first rotating disc (5) and the second rotating disc (6) by bearings, one axial end of each grinding and dispersing assembly extends into the equipment bin (3) and is provided with a rotating gear (9), the centers of the plurality of rotating gears (9) are connected by a fixed gear (8), the fixed gear (8) is fixed in the equipment bin (3) by a fixed sleeve (81), each grinding and dispersing assembly is driven to rotate by the grinding and dispersing mechanism and the rotating gear (9) and the fixed gear (8), the grinding and dispersing assembly comprises a grinding roller (71) and a stirring rod (72) arranged at one end of the grinding roller (71), the grinding roller (71) is arranged in the grinding cavity (21), each grinding roller (71) is arranged in close contact with the inner wall of the grinding cavity (21), and adjacent grinding rollers (71) are also arranged in close contact with each other, and the stirring rod (72) is arranged in the dispersing cavity (22), the stirring blades (721) on each stirring rod (72) are arranged in a staggered manner.

2. The carbon nanotube slurry preparation grinding device according to claim 1, wherein The connecting shaft (51) is fixedly connected to the center of the second rotating disc (6) and is rotatably arranged in the first rotating disc (5), and the other end of the connecting shaft (51) is driven to rotate by a driving device, the driving device comprises a driving motor (4) and a speed reducer (41), and the driving motor (4) drives the connecting shaft (51) to rotate through the speed reducer (41).

3. The carbon nanotube slurry preparation grinding device according to claim 2, wherein One end of the fixed sleeve (81) is fixedly connected to the outer wall of the speed reducer (41), and the fixed sleeve (81) is arranged outside the connecting rod and is rotatably connected to the connecting rod by a bearing.

4. The carbon nanotube slurry preparation grinder according to claim 1, wherein The diameter of the grinding cavity (21) is larger than the diameter of the dispersing cavity (22), and the connection between the grinding cavity (21) and the dispersing cavity (22) is arranged in a conical transition.

5. The carbon nanotube slurry preparation grinding device according to claim 1, wherein The two ends of the grinding roller (71) are arranged in a conical tapering manner, and the tapering end of the grinding roller (71) close to the equipment bin (3) is provided with a feeding port (23), and one end of the dispersing cavity (22) is provided with a discharging port (24).

6. The carbon nanotube slurry preparation grinding device according to claim 1, wherein The diameter of the through hole (61) is smaller than the diameter of the grinding medium in the dispersing cavity (22).

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