A raw material conveying device for preparing carbon nanotube material

Abstract

The present application discloses a raw material conveying device for preparing carbon nanotube materials, which belongs to the technical field of carbon nanotube preparation. It mainly includes a conveying device, which includes at least two groups of support legs; a preheating box, which is fixedly installed on the support legs, a support plate is fixedly installed on one side of the preheating box, a feed inlet is opened on one side of the preheating box, and a discharge port is opened on the other side of the preheating box, and an electric heating wire is fixedly installed on the top of the preheating box. The raw material conveying device for preparing carbon nanotube materials of the present application is provided with a preheating box and a preheating tube group arranged in the preheating box. When the catalyst is transported from the raw material storage device to the fluidized bed device, the catalyst can be heated, and the main part of the preheating tube group is coiled, thereby increasing the conveying time of the catalyst, so that the catalyst can stay in the preheating box for a longer time, thereby achieving the effect of preheating the catalyst.

Description

Technical Field

[0001] The present application relates to the technical field of carbon nanotube preparation, and in particular to a raw material conveying device for preparing carbon nanotube materials. Background Art

[0002] Carbon nanotubes are a one-dimensional quantum material with a special structure. They can be regarded as seamless, hollow tubes formed by curling one or several layers of carbon atoms in graphite. The tube walls are arranged in a hexagonal network structure formed by covalent bonds of carbon atoms, so they have extremely high strength and toughness. Carbon nanotubes are usually used in batteries, medical and bioengineering fields, etc., and are widely used. Therefore, carbon nanotubes are produced in batches. The production of carbon nanotubes usually includes two major types of materials: carbon source and catalyst. In the process of producing carbon nanotubes, a large amount of carbon source and catalyst need to be transported to the carbon nanotube production equipment. In this process, a raw material conveying device for the preparation of carbon nanotube materials is needed.

[0003] Existing carbon nanotube material conveying devices are usually composed of conveying equipment and material storage equipment, and the conveying equipment mainly includes a conveying pipeline and an air pump. One end of the conveying pipeline is connected to the material storage equipment, and the other end is connected to the carbon nanotube production equipment. After the air pump is started, a high-speed airflow is introduced into the conveying pipeline, and the carbon nanotube raw material is pneumatically transported from the material storage equipment through the conveying pipeline and then enters the carbon nanotube production equipment.

[0004] Although the above-mentioned device realizes the transportation of raw materials for the preparation of carbon nanotube materials, the carbon source and catalyst used in the production process of carbon nanotubes often require higher temperatures to react. In particular, higher temperatures can promote the oxidation and dispersion of the catalyst. If the catalyst is transported at room temperature, it will take a certain period of time to reach the required temperature after entering the reaction fluidized bed. During the waiting process, the catalyst will also react with the carbon source but the reaction rate is slow. Secondly, if the catalyst is directly heated rapidly at a high temperature, it may cause damage to the internal structure of the catalyst due to excessive heating. For this reason, the catalyst needs to be preheated to increase its reaction rate with the carbon source, thereby increasing the production rate of carbon nanotubes. Therefore, it is necessary to provide a raw material transportation device for the preparation of carbon nanotube materials to solve the above problems.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide a raw material conveying device for preparing carbon nanotube materials, which solves the problem that the conveying equipment cannot preheat the catalyst.

[0007] The technical solution adopted by the present application to solve its technical problems is: a raw material conveying device for preparing carbon nanotube materials, including a conveying device, which includes at least two groups of support legs; a preheating box, which is fixedly installed on the support legs, a support plate is fixedly installed on one side of the preheating box, and a heating wire is fixedly installed on the top of the preheating box; an air pump, which is arranged on one side of the preheating box; a motor, which is fixedly installed on the support plate; a first shaft, one end of which is fixedly connected to the output end of the motor; an arc groove, which is opened on both sides of the inner wall of the preheating box; a second A shaft, the second shaft is arranged on the other side of the top of the preheating box, and sliding plates are fixedly installed at both ends of the second shaft, and the sliding plates are slidably connected to the arc-shaped groove; at least two groups of telescopic components, one end of the telescopic component is fixedly installed on the first shaft, and the other end of the telescopic component is fixedly connected to the second shaft; a preheating tube group, the preheating tube group includes a coil wound on the first shaft and the second shaft; a vibration plate is fixedly installed on one side of the coil, a bottom plate is fixedly installed on the support leg, a cylinder is fixedly installed on the top of the bottom plate, and the output end of the cylinder extends into the preheating box.

[0008] Furthermore, the preheating tube group is arranged in the preheating box, and the preheating tube group also includes a first tube and a second tube, the second tube is arranged at the end of the coil, and the coil is arranged at the end of the first tube.

[0009] Further, the initial end of the arc groove is located at the upper end of the preheating box and is provided with a first stationary point, the terminal end of the arc groove is located at the lower end of the preheating box and is provided with a second stationary point, and the main body of the arc groove is mainly provided with an arc slide, and the arc slide is arranged with the first axis as the center;

[0010] An extension section is provided at the bottom of the arc-shaped groove, and the extension section is a vertical channel. The end of the extension section is close to the bottom of the inner cavity of the preheating box, and a third stationary point is provided at the end of the extension section.

[0011] Furthermore, a feed tray is fixedly installed on one side of the preheating box near the feed inlet, and the feed tray includes a tray body fixedly installed in the preheating box, and a feed inlet is opened in the tray body, and the feed inlet is communicated with the feed inlet;

[0012] Both ends of the first tube are hard tubes, which are fixedly connected to the disc body and the coil respectively, and the main part of the first tube is a hose;

[0013] The material structure of the second tube is the same as that of the first tube, one end of the second tube is fixedly connected to the end of the coil, and the other end of the second tube is fixedly connected to the inner wall of the preheating box.

[0014] Furthermore, at least two groups of folded hoses are provided on the coil, and the folded hoses are close to the first axis.

[0015] Further, at least two sets of telescopic components are fixedly installed on one side of the first shaft, and the other side of the telescopic component is fixedly connected to the second shaft. The telescopic component includes a telescopic rod fixedly connected to the second shaft, and a sliding end is provided at one end of the telescopic rod away from the second shaft, and the diameter of the sliding end is larger than the diameter of the telescopic rod;

[0016] The telescopic assembly also includes a fixed cylinder fixedly installed on one side of the first axis, a sliding chamber is provided inside the fixed cylinder, the sliding end is slidably installed in the sliding chamber, and a limiting chamber is also provided at one end of the fixed cylinder away from the first axis, the inner diameter of the limiting chamber is smaller than the inner diameter of the sliding chamber, and a limiting step is provided at the position where the limiting chamber is connected to the sliding chamber.

[0017] Furthermore, a fixed sleeve is fixedly installed on the first shaft, the fixed sleeve is located in the disk body, a rotating rod is fixedly installed on the fixed sleeve, a protrusion is fixedly installed on the rotating rod, one end of the protrusion away from the rotating rod is in contact with the inner wall of the disk body, and the diameter of the protrusion is larger than the diameter of the feed port.

[0018] Furthermore, a blowing device is fixedly installed on the top of the preheating box, at least two groups of blowing valves are fixedly installed on the coil, the blowing valves are connected to the blowing device through pipelines, and a contact switch is arranged on the vibration plate, wherein: the contact switch is used to control the opening or closing of the blowing device, and the output end of the cylinder is suitable for contacting with the contact switch to start the blowing device.

[0019] Furthermore, a feed port is provided on one side of the preheating box, a discharge port is provided on the other side of the preheating box, the end of the second tube is communicated with the discharge port, a feed pipe is fixedly installed on one side of the preheating box, the feed pipe is communicated with the feed port, a discharge pipe is fixedly installed on the other side of the preheating box, the discharge pipe is communicated with the discharge port, a raw material storage device is fixedly installed on the other end of the feed pipe, and a fluidized bed device is fixedly installed on the other end of the discharge pipe.

[0020] The beneficial effect of the present application is as follows: a raw material conveying device for preparing carbon nanotube materials provided in the present application is provided with a preheating box and a preheating tube group arranged in the preheating box. When the catalyst is conveyed from the raw material storage device to the fluidized bed device, the catalyst can be heated, and the main part of the preheating tube group is coiled, thereby increasing the conveying time of the catalyst, so that the catalyst can stay in the preheating box longer, thereby achieving the effect of preheating the catalyst.

[0021] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 This is an overall schematic diagram of a raw material conveying device for preparing carbon nanotube materials in this application;

[0024] Figure 2 for Figure 1 Side view of the overall structure;

[0025] Figure 3 for Figure 1 A magnified view of the structure of the middle A area;

[0026] Figure 4 for Figure 3 Schematic diagram of the overall structure after the middle box is cut away;

[0027] Figure 5 for Figure 4 A schematic diagram of a partial cross-section of the overall structure;

[0028] Figure 6 for Figure 3 Partial section rear side view of the middle box structure;

[0029] Figure 7 for Figure 3 A schematic diagram of another viewing angle after partial sectioning of the overall structure;

[0030] Figure 8 for Figure 7 A magnified view of the structure of the middle B area;

[0031] Fig. 9 for Figure 3 Partial section rear side view of the middle preheating box structure;

[0032] Fig.10 for Fig. 9Enlarged view of the structure of the middle C region.

[0033] Among them, the reference numerals in the figure are:

[0034] 1. Raw material storage equipment; 11. Feed pipe; 2. Fluidized bed equipment; 21. Discharge pipe;

[0035] 3. Conveying equipment; 31. Support legs; 32. Preheating box; 33. Motor; 34. Support plate; 35. First shaft; 36. Preheating tube group; 361. First tube; 362. Coil; 363. Second tube; 364. Hose; 37. Second shaft; 38. Sliding plate; 39. Cylinder; 310. Blowing equipment; 311. Bottom plate; 312. Vibrating plate;

[0036] 4. Feeding plate; 41. Plate body; 42. Feeding port; 43. Fixing sleeve; 44. Rotating rod; 45. Bump; 5. Arc groove; 51. First stationary point; 52. Arc slideway; 53. Second stationary point; 54. Third stationary point;

[0037] 6. Telescopic assembly; 61. Telescopic rod; 62. Sliding end; 63. Fixed cylinder; 64. Sliding chamber; 7. Blower valve. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0040] Embodiment 1: This embodiment mainly introduces the basic structure and working principle of the raw material conveying device for preparing carbon nanotube materials, specifically:

[0041] like Figure 1-Figure 2 As shown, the present application provides a raw material conveying device for preparing carbon nanotube materials, including a raw material storage device 1, which is mainly used to store raw materials for carbon nanotubes, mainly including two categories of carbon sources and catalysts. A feed pipe 11 is fixedly installed at one end of the raw material storage device 1, and the raw materials in the raw material storage device 1 are output through the feed pipe 11;

[0042] A conveying device 3 is provided on one side of the raw material storage device 1, and the other end of the feed pipe 11 is connected to the conveying device 3, and the raw materials in the raw material storage device 1 can be input into the conveying device 3 through the feed pipe 11;

[0043] A fluidized bed device 2 is provided on the side of the conveying device 3 away from the raw material storage device 1. The fluidized bed device 2 is a device for producing carbon nanotubes. A discharge pipe 21 is fixedly installed between the fluidized bed device 2 and the conveying device 3, so that the raw materials in the conveying device 3 can enter the fluidized bed device 2 through the discharge pipe 21, so as to facilitate the production of carbon nanotubes.

[0044] An air pump (not shown in the figure) is also installed at the connection between the discharge pipe 21 and the fluidized bed device 2. When the air pump is started, airflow is generated in the feed pipe 11, the conveying device 3 connected to the feed pipe 11, and the discharge pipe 21. The raw material enters the feed pipe 11 after falling through the raw material storage device 1. Due to the pneumatic action generated by the air pump, the raw material enters the conveying device 3 through the feed pipe 11, and then enters the discharge pipe 21 through the conveying device 3, and finally enters the fluidized bed device 2 through the discharge pipe 21, so as to realize the transportation of the carbon nanotube raw material;

[0045] like Figure 3-Figure 4 As shown, the conveying device 3 includes at least two groups of supporting legs 31, and the supporting legs 31 are the supporting parts of the conveying device 3, which are usually placed on a flat ground or a workbench. A preheating box 32 is fixedly installed on the top of the supporting legs 31, and a feed port and a discharge port are respectively opened on both sides of the preheating box 32. One end of the feed pipe 11 is connected to the feed port, and one end of the discharge pipe 21 is connected to the discharge port, so that the raw materials in the feed pipe 11 will enter the preheating box 32 through the feed port under the action of the air pump, and then the raw materials in the preheating box 32 will enter the discharge pipe 21 through the discharge port under the continuous action of the air pump, and finally enter the fluidized bed device 2 through the discharge pipe 21;

[0046] In this embodiment, a heating wire (not shown in the figure) is fixedly installed on the top of the preheating box 32. The heating wire is an existing electric heating component, which is turned on or off by electronic control. When it is turned on, it generates heat to heat the preheating box 32. Therefore, when the catalyst enters the preheating box 32, it will be heated and heated by the heating wire to achieve preheating of the catalyst. However, the catalyst will only stay in the preheating box 32 for a short time under the action of the air pump. Moreover, since the preheating box 32 is a box body, the catalyst will be scattered all over the box body after entering the preheating box 32, which is not convenient for its transportation.

[0047] In order to facilitate the transportation of carbon nanotube raw materials, such as Figure 5A preheating tube group 36 is installed in the preheating box 32. The preheating tube group 36 includes a first tube 361 fixedly installed in the preheating box 32. One end of the first tube 361 is connected to the feed port, so that the raw material in the feed pipe 11 is suitable for entering the first tube 361 through the feed port. A coil 362 is connected to the end of the first tube 361. The coil 362 is fixedly connected to the top of the preheating box 32. It should be noted that the coil 362 is located below the electric heating wire and does not contact the electric heating wire.

[0048] In this embodiment, the coil 362 is arranged in a spiral direction from the feed inlet to the discharge outlet. Figure 5 The coil 362 is a horizontal ellipse when viewed from the side, and multiple groups of parallel tubes arranged in a vertical direction when viewed from the top or from the bottom. The length of each coil of the coil 362 is determined by the thickness of the preheating box 32, and the number of coils is determined by the width of the preheating box 32. The coil 362 is set to a coiled state mainly to facilitate the delivery of the catalyst and extend the residence time of the catalyst in the preheating box 32, so that the catalyst can be better preheated;

[0049] The end of the coil 362 is connected to a second tube 363, which is fixedly connected to the side wall of the preheating box 32. One end of the second tube 363 away from the coil 362 is connected to the discharge port, so that after the raw material enters the coil 362 under the action of the air pump, it will enter the second tube 363 through the coil 362. Then, under the continuous action of the air pump, the raw material passes through the second tube 363 through the discharge port and enters the discharge pipe 21, and finally enters the fluidized bed device 2 through the discharge pipe 21, thereby realizing the transportation of the carbon nanotube raw material;

[0050] In this embodiment, in order to heat the raw materials in the preheating tube group 36 faster, the material used to make the preheating tube group 36 can be a heat-permeable material. When the electric heating wire generates heat after startup, the hot gas can pass through the surface of the preheating tube group 36 to reach the inside of the preheating tube group 36 faster, so that the raw materials being transported inside the preheating tube group 36 can be quickly heated. In addition, most of the carbon nanotube raw materials mentioned in this embodiment refer to the catalyst required for the production of carbon nanotubes. Preheating the catalyst being transported can make the catalyst suitable for faster oxidation and dispersion, thereby improving the production efficiency of carbon nanotubes.

[0051] Embodiment 2: In the above embodiment, by arranging electric heating wires and preheating tube group 36 in preheating box 32, carbon nanotube raw materials can be preheated during transportation, and the preheating time is guaranteed by the arrangement of coil 362. However, when carbon nanotubes are produced, the reaction between the catalyst and the carbon source requires a certain period of waiting. During the waiting process, there is no need to transport the raw materials. The raw materials can only be transported after the reaction of the raw materials is completed and the finished carbon nanotubes are taken out. However, in the above embodiment, if the raw materials are to be transported intermittently, the transportation of the raw materials can only be interrupted from the raw material storage device 1. However, after the middle section of the raw materials is transported, there is no raw material inside coil 362, but it is still close to the electric heating wire. If the coil 362 is heated continuously for a long time, its life will be consumed quickly.

[0052] In order to solve this problem, the present embodiment improves the installation method of the preheating tube group 36. Specifically, Figure 4-Figure 6 As shown, a support plate 34 is fixedly installed on one side of the preheating box 32, and a motor 33 is fixedly installed on the support plate 34. The output end of the motor 33 passes through the preheating box 32 and extends into the preheating box 32. A first shaft 35 is fixedly installed on the output end of the motor 33. The other end of the first shaft 35 is movably connected to the inner wall of the preheating box 32 through a bearing, so that when the motor 33 is started, it is suitable for driving the first shaft 35 to rotate;

[0053] A second shaft 37 is also provided in the preheating box 32. Figure 5 Taking the middle viewing angle as the standard, the second shaft 37 is located at the rear side of the top of the preheating box 32, and the first shaft 35 is located at the front side of the top of the preheating box 32, which are at the same horizontal height. Sliding disks 38 are fixedly installed on both sides of the second shaft 37, and arc grooves 5 are opened on both sides of the preheating box 32. The sliding disk 38 is slidably installed in the arc groove 5. When the second shaft 37 is subjected to external force, the sliding disk 38 is also subjected to the force, and it will rotate along the setting direction of the arc groove 5;

[0054] A telescopic assembly 6 is fixedly installed between the first shaft 35 and the second shaft 37. Through the telescopic assembly 6, the connection between the first shaft 35 and the second shaft 37 is realized. When the first shaft 35 rotates under the drive of the motor 33, the second shaft 37 rotates synchronously, and the sliding plate 38 slides in the arc groove 5;

[0055] like Figure 7-Figure 8As shown, the arc groove 5 is a curved arc groove, the initial end of which is located at the upper end in the preheating box 32, and the terminal end is located at the lower end in the preheating box 32. For the convenience of description, the initial end of the arc groove 5 is defined as the first stationary point 51. In the initial state, the sliding plate 38 is located at the first stationary point 51. Since the second shaft 37 is connected to the first shaft 35 through the telescopic component 6, but the first shaft 35 is connected to the output end of the motor 33, when the motor 33 is in the off state, the first shaft 35 cannot rotate, so that even if the second shaft 37 is at a high position, the second shaft 37 cannot slide due to the restriction of the first shaft 35.

[0056] The end of the arc groove 5 is defined as a second stationary point 53. When the second shaft 37 slides under the drive of the first shaft 35, the sliding plate 38 slides from the first stationary point 51 to the second stationary point 53. The main part of the arc groove 5 is defined as an arc slide 52. The arc slide 52 is set with the first shaft 35 as the center of the circle, so that when the first shaft 35 drives the second shaft 37 to rotate, the sliding plate 38 slides in the arc groove 5 to avoid derailment.

[0057] In the above embodiment, the coil 362 is fixedly connected to the preheating box 32, while in this embodiment, the coil 362 is wound around the first shaft 35 and the second shaft 37 and is fixedly connected to the first shaft 35 and the second shaft 37. For details, please refer to Figure 6 , the installation position and method of the coil 362 are the same, but it is fixedly connected to the first shaft 35 and the second shaft 37, the purpose is to facilitate the flipping of the coil 362, for the convenience of description, the coil 362 placed in the initial state is defined as horizontal placement, after flipping, the coil 362 is flipped to be placed vertically, and the connection method of the first tube 361 and the second tube 363 is also changed, which will be explained below;

[0058] For further information, please refer to Figure 7-Figure 8 A feed tray 4 is fixedly installed on one side of the preheating box 32 near the feed pipe 11. The feed tray 4 includes a tray body 41 fixedly installed in the preheating box 32. The interior of the tray body 41 is hollow. An inlet 42 is provided in the tray body 41. The inlet 42 communicates with the feed inlet. Meanwhile, a fixing sleeve 43 is fixedly installed on the first shaft 35. The fixing sleeve 43 is located in the tray body 41. A rotating rod 44 is fixedly installed on the fixing sleeve 43. A convex block 45 is fixedly installed on the rotating rod 44. One end of the convex block 45 away from the rotating rod 44 is in contact with the inner wall of the tray body 41. The diameter of the convex block 45 is larger than the diameter of the inlet 42.

[0059] In the initial state, the rotating rod 44 is in a horizontal state (with Figure 8When the motor 33 is started to drive the first shaft 35 to rotate, the fixed sleeve 43 rotates synchronously, and the rotating rod 44 and the protrusion 45 rotate synchronously. Finally, the protrusion 45 rotates to the position of the feed inlet 42, and the protrusion 45 blocks the feed inlet 42 to prevent the raw materials from entering the preheating box 32 again;

[0060] In the above embodiment, the first tube 361 is fixedly connected to the preheating box 32, while in the present embodiment, both ends of the first tube 361 are hard tubes, which are respectively fixedly connected to the coil 362 and the disc body 41, and the main part of the first tube 361 is a hose, the purpose of which is to adapt to the rotation of the coil 362, and it can freely expand and contract according to the movement of the coil 362 when adapting to the rotation of the coil 362. Similarly, the material structure of the second tube 363 is the same as that of the first tube 361, and both ends of the second tube 363 are also hard tubes, one end of the second tube 363 is fixedly connected to the coil 362, and the other end of the second tube 363 is communicated with the discharge port and fixedly connected to the inner wall of the preheating box 32, and its main part is also a hose to adapt to the deflection of the coil 362;

[0061] In summary, after a period of feeding, if it is necessary to wait for the catalyst and carbon source that have been fed to react to complete before feeding, the staff can start the motor 33, and the motor 33 starts to drive the first shaft 35 to rotate, and the rotation of the first shaft 35 drives the second shaft 37 to rotate synchronously. When the second shaft 37 rotates, the coil 362 rotates synchronously, and the coil 362 rotates from the initial top position in the preheating box 32, and the coil 362 flips from the initial horizontal placement state to the vertical placement state. When the coil 362 flips, the sliding plate 38 slides in the arc groove 5, and slides from the first stationary point 51 through the arc slide 52 to the second stationary point 53. When it reaches the second stationary point 53, it means that the coil 362 has completed flipping;

[0062] While the sliding disc 38 slides, the fixed sleeve 43 also rotates synchronously driven by the first shaft 35, thereby driving the rotating rod 44 and the protrusion 45 to rotate synchronously. When the sliding disc 38 reaches the second stationary point 53, the protrusion 45 reaches the feed inlet 42, and because its diameter is larger than the diameter of the feed inlet 42, the protrusion 45 blocks the feed inlet 42. At this time, the raw material can no longer enter the preheating box 32, so as to realize the interruption of the raw material transportation.

[0063] When the coil 362 is flipped from the initial horizontal placement state to the vertical placement state, the coil 362 is also away from the heating wire. Even if the heating wire remains energized, due to the distance, the heat received by the coil 362 is also the heat dissipated in the preheating box 32. Compared with the heat received by the coil close to the heating wire in the initial state, the heat received by the coil 362 after flipping is greatly reduced, thereby increasing the service life of the coil 362. However, it is still in a heated state after flipping and can be kept warm.

[0064] Embodiment 3: In the above embodiment, by providing a motor 33, a first shaft 35 and a second shaft 37, the motor 33 can drive the coil 362 to flip after it is started, thereby achieving intermittent conveying of raw materials while avoiding continuous high-intensity heating of the coil 362. However, since the conveyed catalyst raw materials are usually in granular or powdered form and are conveyed through pipelines and pneumatic means, friction is inevitable in the process of conveying the catalyst particles. After friction, ions are often generated on the surface of the catalyst particles, and static electricity is attached to the surface of the catalyst particles. When static electricity is attached to the surface of the raw material, it may adhere to the inner wall of the pipeline, especially the coil 362, which is bent and has a long total length, making it easier for the raw material to adhere to its inner wall. Over time, when a large amount of adhered raw materials accumulate, it is inevitable that inconvenience will be caused to the conveying operation.

[0065] In order to solve this problem, this embodiment improves the structure of the arc groove 5 and the coil 362 on the basis of the second embodiment, and further limits the structure of the telescopic component 6. Specifically, Figure 6 As shown, in this embodiment, a plurality of groups of foldable hoses 364 are arranged on the coil 362, and the foldable hoses 364 are close to the first axis 35. In the initial state, when the coil 362 is placed horizontally, the foldable hoses 364 are already in a compressed state;

[0066] like Figure 9-10 As shown, the telescopic assembly 6 includes a telescopic rod 61 fixedly connected to the second shaft 37, and a sliding end 62 is provided at one end of the telescopic rod 61 away from the second shaft 37. The diameter of the sliding end 62 is larger than the diameter of the telescopic rod 61. The telescopic assembly 6 also includes a fixed cylinder 63 fixedly installed on one side of the first shaft 35. The interior of the fixed cylinder 63 is hollow and has a sliding chamber 64. The sliding end 62 is slidably installed in the sliding chamber 64. At the same time, a limited position chamber (not marked in the figure) is also provided at one end of the fixed cylinder 63 away from the first shaft 35. The inner diameter of the limiting chamber is smaller than the inner diameter of the sliding chamber 64, and a limiting step is provided at the position where the limiting chamber is connected to the sliding chamber 64. Due to the limitation of the limiting step, the sliding end 62 cannot enter the limiting chamber. In the initial state, the sliding end 62 is located at the middle section of the sliding chamber 64. If the sliding disk 38 is not limited by the arc groove 5 at this time, the second shaft 37 can move away from or close to the first shaft 35 under the action of external force. At the same time, because the folding hose 364 provided on the coil 362 can adapt to the movement of the second shaft 37;

[0067] In this embodiment, in order to facilitate the cleaning of the raw materials attached to the preheating tube group 36, as shown in FIG. Figure 6-Figure 7As shown, a vibration plate 312 is fixedly installed on one side of the coil 362. The length of the vibration plate 312 is less than the length of the second shaft 37. The vibration plate 312 is arranged on the side of the second shaft 37 away from the first shaft 35. When the second shaft 37 rotates, the vibration plate 312 rotates synchronously, and the motion trajectories thereof are the same.

[0068] Continue to refer Figure 7 , an extension section with an arc-shaped groove 5 is provided at the second stationary point 53, the extension section is a vertical channel, the end of which is close to the bottom of the side wall of the preheating box 32, and a third stationary point 54 is provided at the end of the extension section;

[0069] When the sliding plate 38 reaches the second stationary point 53, the motor 33 is turned off. At this time, due to the gravity of the second shaft 37 and the coil 362, the second shaft 37 will slide vertically downward, so that the sliding plate 38 slides from the second stationary point 53 to the third stationary point 54. At this time, the sliding end 62 also slides toward the limit chamber, and the telescopic rod 61 extends. At the same time, in order to adapt to the movement of the second shaft 37, the coil 362 unfolds the folding hose 364. Due to the limitation of the extension section, the second shaft 37 can only move upward and cannot continue to move downward.

[0070] like Figure 7 As shown, a bottom plate 311 is fixedly mounted on the support leg 31, and a cylinder 39 is fixedly mounted on the top of the bottom plate 311. The output end of the cylinder 39 extends into the preheating box 32. When the vibration plate 312 moves synchronously with the second shaft 37, one side of the vibration plate 312 contacts the output end of the cylinder 39. At this time, when the cylinder 39 starts to extend, it will drive the vibration plate 312 to move upward, thereby driving the sliding plate 38 to return from the third stationary point 54 to the second stationary point 53.

[0071] If the coil 362 is to be cleaned, the staff can control the output end of the cylinder 39 to extend and retract cyclically, and the second shaft 37 to move up and down cyclically, and the folded hose 364 of the coil 362 will be compressed and then expanded, so that the coil 362 is vibrated to a certain extent, and the materials attached to the inner wall of the coil 362 are shaken off;

[0072] Furthermore, since the folding hose 364 is close to the first shaft 35, that is, the coil section of the folding hose 364 far from the first shaft 35 will move under the action of the folding hose 364, and the coil section above the folding hose 364 (that is, the coil section on the folding hose 364 and the first shaft 35) cannot move synchronously under the action of the folding hose 364, and it is fixedly installed with the first shaft 35, so the coil section is less affected by the shaking force;

[0073] In order to facilitate the cleaning of the remaining coil sections, Figure 7 and Figure 9-10As shown, a blast device 310 is fixedly installed on the top of the preheating box 32, and a plurality of blast valves 7 are fixedly installed on the coil 362. The plurality of blast valves 7 are connected to the blast device 310 through pipelines. The blast device 310 provides drive and wind force for the blast valve 7. The blast valve 7 is mainly installed in the coil section between the folded hose 364 and the first shaft 35, and in the coil section coiled on the first shaft 35. A contact switch is arranged on the vibration plate 312, and the contact switch is used to control the opening or closing of the blast device 310. When the sliding plate 38 is located at the third stationary point 54, the vibration plate 312 contacts the output end of the cylinder 39. At this time, the output end of the cylinder 39 contacts the contact switch, the blast device 310 is opened, and the blast valve 7 blows gas into the coil 362 to blow off the raw material particles adhering to the coil 362. The blown-off raw materials can be left in the pipeline for reuse.

[0074] After cleaning the coil 362, if the raw materials need to be transported continuously, the staff can control the output end of the cylinder 39 to extend, and lift the sliding plate 38 to the second stationary point 53 through the vibration plate 312 and the second shaft 37. Then the staff controls the motor 33 to reverse, and the first shaft 35 drives the second shaft 37 to rotate. The sliding plate 38 returns from the second stationary point 53 to the first stationary point 51, and the coil 362 and the rotating rod 44 also return to the initial state to continue transporting the raw materials.

[0075] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A raw material conveying device for preparing carbon nanotube materials, characterized in that: include: A conveying device (3), the conveying device (3) comprising at least two sets of supporting legs (31); A preheating box (32), the preheating box (32) is fixedly mounted on the supporting leg (31), a supporting plate (34) is fixedly mounted on one side of the preheating box (32), and a heating wire is fixedly mounted on the top of the preheating box (32); an air pump, the air pump being arranged on one side of the preheating box (32); A motor (33), the motor (33) being fixedly mounted on the support plate (34); A first shaft (35), one end of which is fixedly connected to an output end of the motor (33); Arc-shaped grooves (5), the arc-shaped grooves (5) being provided on both sides of the inner wall of the preheating box (32); A second shaft (37), the second shaft (37) being arranged at the other side of the top of the preheating box (32), and sliding plates (38) being fixedly mounted at both ends of the second shaft (37), and the sliding plates (38) being slidably connected to the arc-shaped groove (5); at least two sets of telescopic components (6), one end of the telescopic component (6) is fixedly mounted on the first shaft (35), and the other end of the telescopic component (6) is fixedly connected to the second shaft (37); A preheating tube assembly (36), the preheating tube assembly (36) comprising a coil (362) wound around the first shaft (35) and the second shaft (37); A vibration plate (312) is fixedly mounted on one side of the coil (362), a bottom plate (311) is fixedly mounted on the support leg (31), a cylinder (39) is fixedly mounted on the top of the bottom plate (311), and an output end of the cylinder (39) extends into the preheating box (32); The preheating tube group (36) is arranged in the preheating box (32), and the preheating tube group (36) further includes a first tube (361) and a second tube (363), wherein the second tube (363) is arranged at the end of the coil (362), and the coil (362) is arranged at the end of the first tube (361); The initial end of the arc-shaped groove (5) is located at the upper end of the preheating box (32) and is provided with a first stationary point (51); the terminal end of the arc-shaped groove (5) is located at the lower end of the preheating box (32) and is provided with a second stationary point (53); the main body of the arc-shaped groove (5) is mainly provided with an arc-shaped slideway (52); and the arc-shaped slideway (52) is arranged with the first axis (35) as the center of the circle; An extension section is provided at the bottom of the arc-shaped groove (5), the extension section being a vertical channel, the end of the extension section being close to the bottom of the inner cavity of the preheating box (32), and a third stationary point (54) being provided at the end of the extension section; At least two groups of folded hoses (364) are arranged on the coil (362), and the folded hoses (364) are close to the first shaft (35).

2. A raw material conveying device for preparing carbon nanotube materials according to claim 1, characterized in that: A feed tray (4) is fixedly installed on one side of the preheating box (32) near the feed port, the feed tray (4) comprising a tray body (41) fixedly installed in the preheating box (32), a feed port (42) is provided in the tray body (41), and the feed port (42) is communicated with the feed port; Both ends of the first tube (361) are hard tubes, which are fixedly connected to the disc body (41) and the coil (362) respectively, and the main part of the first tube (361) is a soft tube; The material structure of the second tube (363) is the same as that of the first tube (361), one end of the second tube (363) is fixedly connected to the end of the coil (362), and the other end of the second tube (363) is fixedly connected to the inner wall of the preheating box (32).

3. The raw material conveying device for preparing carbon nanotube materials according to claim 2, characterized in that: At least two groups of telescopic components (6) are fixedly mounted on one side of the first shaft (35); the other side of the telescopic component (6) is fixedly connected to the second shaft (37); the telescopic component (6) comprises a telescopic rod (61) fixedly connected to the second shaft (37); a sliding end (62) is provided at one end of the telescopic rod (61) away from the second shaft (37); and a diameter of the sliding end (62) is greater than a diameter of the telescopic rod (61); The telescopic assembly (6) further comprises a fixed cylinder (63) fixedly mounted on one side of the first shaft (35), a sliding chamber (64) being provided inside the fixed cylinder (63), the sliding end (62) being slidably mounted in the sliding chamber (64), a limiting chamber being further provided at one end of the fixed cylinder (63) away from the first shaft (35), the inner diameter of the limiting chamber being smaller than the inner diameter of the sliding chamber (64), and a limiting step being provided at a position where the limiting chamber communicates with the sliding chamber (64).

4. The raw material conveying device for preparing carbon nanotube materials according to claim 3, characterized in that: A fixing sleeve (43) is fixedly mounted on the first shaft (35), the fixing sleeve (43) is located inside the disc body (41), a rotating rod (44) is fixedly mounted on the fixing sleeve (43), a convex block (45) is fixedly mounted on the rotating rod (44), an end of the convex block (45) away from the rotating rod (44) is in contact with the inner wall of the disc body (41), and a diameter of the convex block (45) is greater than a diameter of the feed port (42).

5. The raw material conveying device for preparing carbon nanotube materials according to claim 4, characterized in that: A blast device (310) is fixedly mounted on the top of the preheating box (32); at least two groups of blast valves (7) are fixedly mounted on the coil (362); the blast valves (7) are connected to the blast device (310) via pipelines; a contact switch is arranged on the vibration plate (312); wherein the contact switch is used to control the opening or closing of the blast device (310); and the output end of the cylinder (39) is suitable for contacting the contact switch to start the blast device (310).

6. A raw material conveying device for preparing carbon nanotube materials according to claim 5, characterized in that: A feed port is provided on one side of the preheating box (32), and a discharge port is provided on the other side of the preheating box (32). The end of the second tube (363) is communicated with the discharge port. A feed pipe (11) is fixedly installed on one side of the preheating box (32), and the feed pipe (11) is communicated with the feed port. A discharge pipe (21) is fixedly installed on the other side of the preheating box (32), and the discharge pipe (21) is communicated with the discharge port. A raw material storage device (1) is fixedly installed on the other end of the feed pipe (11), and a fluidized bed device (2) is fixedly installed on the other end of the discharge pipe (21).

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