Material collecting device and single-walled carbon nanotube production apparatus

Abstract

The present application relates to a kind of material collecting device and single-wall carbon nanotube preparation equipment, material collecting device, comprising: material collecting bin, material collecting bin has reaction port and exhaust port;Roller assembly, roller assembly includes the roller shell being arranged in material collecting bin and being located above reaction port, magnet assembly being arranged in roller shell and cooling pipeline;Magnet assembly includes magnet shell and multiple magnets, multiple magnets are arranged in annular array to form magnet array, and form water inlet area between magnet array, magnet array is arranged in magnet shell, and forms backwater area between magnet array and magnet shell, water inlet area is communicated with backwater area;Cooling pipeline is communicated with water inlet area and backwater area respectively;And roller drive, roller drive is driveably connected to roller assembly;Magnet assembly can adsorb single-wall carbon nanotube, to obtain the uniform thickness and density single-wall carbon nanotube film, can also cool roller shell, make the surface temperature of roller shell uniform and stable.

Description

Technical Field

[0001] This invention relates to the field of materials preparation technology, and in particular to a material collection device and a single-walled carbon nanotube preparation equipment. Background Technology

[0002] Floating catalytic chemical vapor deposition (FC-CVD) is a key technology for the continuous, large-scale preparation of single-walled carbon nanotubes and their macroscopic assemblies (such as thin films, fibers, arrays, and aerogels). Its basic principle involves introducing a carbon source (such as methane, ethanol, or carbon monoxide), a catalyst precursor (such as organometallic compounds like ferrocene), and a carrier gas (such as hydrogen or argon) into a reactor within a high-temperature reaction zone. Under specific conditions, catalyst nanoparticles form in the gas phase and catalyze the decomposition of the carbon source, ultimately forming single-walled carbon nanotubes. In the FC-CVD process, the generated single-walled carbon nanotubes and their assemblies can exit the high-temperature reaction zone as aerosols or gaseous products with the carrier gas and be collected by a collection device.

[0003] Current collection devices typically use roller winding for collection. However, uneven airflow distribution, uneven roller surface temperature, or differences in electrostatic adsorption can easily lead to uneven film thickness or density of the collected single-walled carbon nanotubes. Furthermore, effective cooling of the rollers is necessary during roller winding to avoid stress problems caused by uneven heating and cooling. Existing collection devices usually cool the rollers by backflushing with cold air; however, the reverse airflow can easily blow the single-walled carbon nanotubes that have flowed out of the high-temperature reaction zone back into the high-temperature reaction zone, resulting in reduced collection efficiency. Summary of the Invention

[0004] Therefore, it is necessary to provide a collection device and a single-walled carbon nanotube preparation equipment to address the problem of low collection efficiency caused by backflushing cold air in current single-walled carbon nanotube collection devices.

[0005] On one hand, this application provides a receiving device, comprising: a receiving bin having a reaction port and an exhaust port; a roller assembly including a roller shell disposed within the receiving bin and above the reaction port, a magnet assembly disposed within the roller shell, and a cooling pipe; the magnet assembly including a magnet shell and a plurality of magnets, the plurality of magnets being arranged in a ring array to form a magnet array, and a water inlet area being formed between the magnet arrays, the magnet array being disposed within the magnet shell, and a water return area being formed between the magnet array and the magnet shell, the water inlet area being connected to the water return area; the cooling pipe being connected to the water inlet area and the water return area respectively; and a roller drive member drivably connected to the roller assembly.

[0006] In one embodiment, the cooling pipeline includes an inlet pipe and an outlet pipe respectively connected to the outer casing. The inlet pipe is disposed inside the outlet pipe to form a return water channel between the inlet pipe and the outlet pipe. The outlet pipe is fixed to the magnetic outer casing so that the return water channel connects to the return water area. The inlet pipe has an inlet channel, and the magnetic array is disposed around the inlet pipe so that the inlet channel connects to the inlet water area.

[0007] In one embodiment, the rear end of the magnet shell is provided with an interface, the water outlet pipe includes a connecting part connected to the interface and a pipe body connected to the connecting part, the front end of the connecting part is provided with a water inlet and a water return outlet located around the water inlet, the water inlet pipe is inserted into the water inlet, and a plurality of sealing elements are provided between the connecting part and the water inlet pipe, and the water return outlet connects the water return area and the water return channel.

[0008] In one embodiment, the magnet assembly includes multiple magnet arrays and multiple spacers, the spacers being disposed between the magnet arrays to form a cooling interlayer connecting the inlet water zone and the return water zone between two adjacent magnet arrays.

[0009] In one embodiment, the receiving device further includes a scraper assembly, the scraper assembly including a scraper plate slidably disposed on the outside of the roller housing and a scraper drive member drivably connected to the scraper plate, the scraper drive member being used to drive the scraper plate to slide back and forth between a first end and a second end of the roller housing.

[0010] In one embodiment, the receiving device further includes a blowing assembly, which includes a blowing head disposed at a first end of the roller housing of the roller assembly and an air pipe connected to the blowing head.

[0011] In one embodiment, the purging assembly further includes a guide rod disposed in the receiving bin and a purging drive component. The guide rod is disposed in a vertical direction, the air pipe is slidably connected to the guide rod, and the purging drive component is drivably connected to the air pipe to drive the air pipe to slide relative to the guide rod.

[0012] On the other hand, this application provides an apparatus for preparing single-walled carbon nanotubes, comprising:

[0013] The material receiving device as described above; a reaction chamber, wherein a furnace tube is provided inside the reaction chamber for connecting to the reaction port of the material receiving device; and a material taking chamber, wherein the material taking chamber is located below the material receiving chamber of the material receiving device, the material taking chamber having a material taking port, and a vacuum gate valve is provided between the material receiving chamber and the material taking chamber.

[0014] In one embodiment, the single-walled carbon nanotube preparation equipment is a horizontal structure, the reaction chamber is located on the side of the receiving chamber, and the furnace tube extends in a horizontal direction.

[0015] In one embodiment, the single-walled carbon nanotube preparation equipment has a vertical structure, the receiving bin is arranged around the reaction chamber, and the furnace tube extends in a vertical direction.

[0016] In summary, the material collection device of this application, by setting a magnetic component inside the roller shell, allows the airflow carrying single-walled carbon nanotubes flowing out from the reaction port to be attracted by the magnetic component when passing through the roller shell, so that the single-walled carbon nanotubes adhere to the roller shell. Compared with the traditional electrostatic adsorption scheme, it can improve the collection efficiency of single-walled carbon nanotubes, and as the roller shell rotates, a single-walled carbon nanotube film with uniform thickness and density is formed.

[0017] During the collection process, the material collection device of this application uses cooling pipes to introduce coolant into the magnet assembly, which can cool the magnet assembly and the roller shell at the same time, so that the surface temperature of the roller shell is uniform and stable. Compared with the traditional back-blowing cooling air solution, it can solve the problem of stress caused by uneven heating and cooling of the roller shell, and can also avoid the influence of coolant on the airflow from the reaction port, ensuring the high collection efficiency of single-walled carbon nanotubes. Attached Figure Description

[0018] Figure 1 A schematic diagram of a receiving device provided in one embodiment of this application;

[0019] Figure 2 A partial cross-sectional schematic view along the axial direction is shown of the roller assembly of the receiving device provided in the above embodiments of this application;

[0020] Figure 3 As shown Figure 2 A partial enlarged schematic diagram (A) of the roller assembly of the receiving device shown;

[0021] Figure 4 As shown Figure 2 A partial enlarged schematic diagram (B) of the roller assembly of the receiving device shown;

[0022] Figure 5 A partial cross-sectional schematic view of the roller assembly of the receiving device provided in the above embodiments of this application is shown in the radial direction;

[0023] Figure 6 A schematic diagram of the conveyor belt assembly of the receiving device provided according to the above embodiments of this application is shown;

[0024] Figure 7A cross-sectional schematic diagram of the drive wheel of the conveyor belt assembly of the receiving device provided in the above embodiments of this application is shown;

[0025] Figure 8 A horizontal structural schematic diagram of a single-walled carbon nanotube fabrication apparatus provided for one embodiment of this application;

[0026] Figure 9 A vertical structural schematic diagram of a single-walled carbon nanotube fabrication apparatus provided in one embodiment of this application.

[0027] Reference numerals: 10. Receiving bin; 11. Reaction port; 12. Exhaust port; 20. Roller assembly; 21. Roller shell; 211. First end; 212. Second end; 22. Magnet assembly; 221. Magnet shell; 2221. Interface; 222. Magnet array; 223a. Water inlet area; 223b. Water return area; 224. Seal; 225. Spacer; 226. Cooling jacket; 23. Cooling pipe; 231. Water inlet pipe; 232. Water outlet pipe; 2321. Connecting part; 2322. Pipe body; 2323. Water inlet; 2324. Water return port; 233. Water inlet channel; 234. Water return channel; 30. Roller drive component; 31. Roller drive motor; 32. Roller transmission component; 33. Roller rotary joint; 40. Scraper assembly; 41. Scraper blade; 42. Scraper drive component; 50. Blowing assembly; 51. Blowing head; 52. Air pipe; 53. Guide rod; 54. Blowing drive component; 541. Lead screw; 542. Lifting component; 543. Stepper motor; 60. Reaction chamber; 61. Furnace tube; 70. Feeding bin; 71. Feeding port; 72. Vacuum slide valve; 80. Conveyor belt assembly; 81. Conveyor belt; 82. Drive wheel; 821. Wheel housing; 8211. Cooling chamber; 822. Water inlet pipe; 8221. Water inlet hole; 823. Water return pipe; 8231. Water return hole; 83. Driven wheel; 84. Conveyor belt drive component; 841. Conveyor belt drive motor; 842. Conveyor belt transmission component; 85. Scraper blade; 86. Conveyor belt rotary joint. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] To address the low collection efficiency caused by backflushing cold air in current single-walled carbon nanotube (SUV) collection devices, this application provides a collection device and a SUV preparation apparatus. This collection device can improve the collection efficiency of SUVs while ensuring their uniformity.

[0035] Specifically, please refer to Figure 1 According to one aspect of this application, a material receiving device is provided, comprising: a receiving bin 10, a roller assembly 20, and a roller drive 30. The receiving bin 10 has a reaction port 11 and an exhaust port 12. The reaction port 11 is used to connect to a furnace tube 61, and the exhaust port is used to discharge waste gas. The roller assembly 20 includes a roller shell 21, a magnet assembly 22, and a cooling pipe 23. The roller shell 21 is disposed inside the receiving bin 10 and above the reaction port 11, and is used to collect single-walled carbon nanotubes attached to the gas flow discharged from the reaction port 11 during rotation. The magnet assembly 22 is disposed inside the roller shell 21 and is used to adsorb the single-walled carbon nanotubes, causing the single-walled carbon nanotubes to adhere to the roller shell 21. The magnet assembly 22 may include a magnet housing 221 and multiple magnets arranged in a ring array to form a magnet array 222, with an inlet zone 223a formed between the magnet arrays 222. The magnet array 222 is disposed within the magnet housing 221, and a return zone 223b is formed between the magnet housing 221 and the magnet array 222. Cooling pipes 23 are respectively connected to the inlet zone 223a and the return zone 223b, for introducing coolant into the inlet zone 223a and discharging coolant from the return zone 223b, forming a coolant circulation. After passing through the inlet zone 223a and the return zone 223b, the coolant can fully exchange heat with the magnet housing 221 and the magnet array 222. A roller drive 30 is drivably connected to the roller assembly 20 for driving the roller assembly 20 to rotate.

[0036] It is understood that the material collection device of this application, by setting a magnet assembly 22 inside the roller shell 21, allows the airflow carrying single-walled carbon nanotubes flowing out from the reaction port 11 to be attracted by the magnet assembly 22 when passing through the roller shell 21, causing the single-walled carbon nanotubes to adhere to the roller shell 21. Compared with the traditional electrostatic adsorption scheme, this can improve the collection efficiency of single-walled carbon nanotubes. Furthermore, as the roller shell 21 rotates, a single-walled carbon nanotube film with uniform thickness and density is formed. In addition, during the collection process, the material collection device of this application uses a cooling pipe 23 to introduce coolant into the magnet assembly 22, which can cool the roller shell 21 while cooling the magnet assembly 22, making the surface temperature of the roller shell 21 uniform and stable. Compared with the traditional back-blowing cooling air scheme, this can solve the problem of stress caused by uneven heating and cooling of the roller shell 21, and can also avoid the influence of the coolant on the airflow flowing out of the reaction port 11, ensuring high collection efficiency of single-walled carbon nanotubes.

[0037] Optionally, such as Figure 2 and Figure 5 As shown, in some embodiments, the cooling pipe 23 may include an inlet pipe 231 and an outlet pipe 232 respectively connected to the outer casing. The inlet pipe 231 is disposed inside the outlet pipe 232 to form a return water channel 234 between the inlet pipe 231 and the outlet pipe 232. The outlet pipe 232 is fixed to the magnetic outer casing 221 so that the return water channel 234 connects to the return water area 223b. The inlet pipe 231 has an inlet channel 233, and the magnetic array 222 is disposed around the inlet pipe 231 so that the inlet channel 233 connects to the inlet water area 223a. The coolant enters the inlet water area 223a from the inlet channel 233, and after fully contacting the magnetic array 222, flows into the return water area 223b. After fully contacting the magnetic outer casing 221, it flows into the return water channel 234 and flows out of the roller outer casing 21 through the return water channel 234. This configuration, with the water inlet channel 233 in the center and the return channel 234 surrounding it, not only increases the heat exchange area, allowing the coolant to fully contact the magnet shell 221 and the magnet array 222, but also saves the axial space of the roller shell 21, reduces the space occupied by the cooling components inside the roller shell 21, and makes the roller assembly 20 smaller.

[0038] Optionally, such as Figure 2 and Figure 3As shown, in some embodiments, the rear end of the magnet housing 221 is provided with an interface 2221, and the magnet array 222 can be installed into the magnet housing 221 through the interface 2221. The water outlet pipe 232 includes a connecting part 2321 connected to the interface 2221 and a pipe body 2322 connected to the connecting part 2321. The front end of the connecting part 2321 is provided with a water inlet 2323 and a water return outlet 2324 located around the water inlet 2323. The water inlet pipe 231 is inserted into the water inlet 2323, and multiple sealing elements 224 are provided between the connecting part 2321 and the water inlet pipe 231. The water return outlet 2324 connects the water return area 223b and the water return channel 234. In this way, the water outlet pipe 232 integrates the connecting part 2321 and the pipe body 2322 into one unit. The connecting part 2321 can be regarded as a joint, which can seal the interface 2221 of the magnet shell 221 to prevent coolant leakage. It can also optimize the assembly and disassembly steps of the roller assembly 20, making it easier for initial installation and subsequent maintenance.

[0039] Optionally, such as Figure 2 and Figure 4 As shown, in some embodiments, the magnet assembly 22 includes multiple magnet arrays 222 and multiple spacers 225. The spacers 225 are respectively disposed between the magnet arrays 222 to form a cooling jacket 226 between two adjacent magnet arrays 222, connecting the inlet water zone 223a and the return water zone 223b. The coolant in the inlet water zone 223a can enter the return water zone 223b through the cooling jacket 226, thereby increasing the contact area between the coolant and the magnet arrays 222, allowing the coolant to fully contact and exchange heat with the axial surface of the magnet arrays 222, and ensuring that the magnet arrays 222 can be effectively cooled.

[0040] Optionally, such as Figure 1 As shown, in some embodiments, the roller drive component 30 may include a roller drive motor 31 and a roller transmission component 32. The roller transmission component 32 is tractively connected to the roller drive motor and the water outlet pipe 232. The water outlet pipe 232 is connected to a roller rotary joint 33. The roller drive motor 31 can drive the water outlet pipe 232 to rotate through the roller transmission component 32, thereby driving the roller housing 21 to rotate. The roller rotary joint 33 can be used to connect coolant and ensure the sealing of the water outlet pipe 232 during rotation to avoid leakage problems. The conveyor belt drive component 842 can generally be implemented as a drive sprocket assembly or a drive belt pulley assembly.

[0041] Because single-walled carbon nanotubes adhere to the roller assembly 20, the reaction must be stopped and the roller assembly 20 removed after a certain amount of single-walled carbon nanotubes have been collected. Frequent replacement of the roller assembly 20 leads to reduced production efficiency. Therefore, if... Figure 1As shown, in some embodiments, the receiving device further includes a scraper assembly 40. The scraper assembly 40 includes a scraper plate 41 slidably disposed on the outside of the roller housing 21 and a scraper drive member 42 drivably connected to the scraper plate 41. The scraper drive member 42 is used to drive the scraper plate 41 to slide back and forth between the first end 211 and the second end 212 of the roller housing 21. When the scraper plate 41 slides from the second end 212 to the first end 211 of the roller housing 21, the scraper plate 41 can scrape off the single-walled carbon nanotubes on the roller assembly 20, causing the single-walled carbon nanotubes to fall into the receiving bin 10. In this way, when the roller assembly 20 has collected the target number of single-walled carbon nanotubes, the single-walled carbon nanotubes can be scraped off by the scraper plate 41 without frequent replacement of the roller assembly 20, thereby avoiding the problems of reduced production efficiency and heat loss caused by stopping the reaction and meeting the needs of continuous production.

[0042] Optionally, in some embodiments, the scraper drive 42 can be implemented as a cylinder. Cylinders are simple to control; the output thrust can be adjusted by regulating the air pressure, thereby regulating the sliding speed of the scraper 41. The scraper drive 42 can also be implemented as a translation motor. Translation motors offer more precise control; by controlling the electrical signal of the translation motor, the moving distance and speed of the scraper 41 can be controlled more accurately.

[0043] Although the scraper assembly 40 can scrape the single-walled carbon nanotubes attached to the roller shell 21 into the receiving hopper 10, the single-walled carbon nanotubes tend to accumulate on the scraper 41, causing some of them to fail to fall into the receiving hopper 10. Therefore, if... Figure 1 As shown, in some embodiments, the receiving device further includes a blowing assembly 50, which includes a blowing head 51 disposed at the first end 211 of the roller housing 21 of the roller assembly 20 and an air pipe 52 connected to the blowing head 51. The air pipe 52 can be used to access compressed gas. When the scraper plate 41 slides to the first end 211 of the roller housing 21, the compressed gas is sprayed out by the blowing head 51, which can blow off the single-walled carbon nanotubes remaining on the scraper plate 41, thereby preventing the single-walled carbon nanotubes from accumulating on the scraper plate 41.

[0044] Optionally, such as Figure 1 As shown, in some embodiments, the purging assembly 50 further includes a guide rod 53 disposed in the receiving bin 10 and a purging drive 54. The guide rod 53 is arranged vertically, and the air pipe 52 is slidably connected to the guide rod 53. The purging drive 54 is drivably connected to the air pipe 52 to drive the air pipe 52 to slide relative to the guide rod 53. By using the purging drive 54 to drive the air pipe 52 to slide relative to the guide rod, the purging head 51 can be simultaneously driven to slide up and down, enabling the purging head 51 to perform up and down purging actions to cover the entire scraper plate 41, eliminate cleaning dead corners, and ensure that there are no residual single-walled carbon nanotubes on the scraper plate 41.

[0045] Optionally, such as Figure 1 As shown, in some embodiments, the purging drive 54 may include a lead screw 541 rotatably connected to the air tube 52, a lifting component 542 disposed on the lead screw 541, and a stepper motor 543 drivably connected to the lifting component 542. With this configuration, the stepper motor 543 can drive the lifting component 542, causing the lead screw 541 to rotate, thereby causing the air tube 52 to rise and fall. By controlling the electrical signal of the stepper motor 543, a pulsed purging action can be achieved, thereby more thoroughly removing residual single-walled carbon nanotubes from the scraper plate 41.

[0046] In particular, such as Figure 6 and Figure 7 As shown, in some embodiments, the receiving device of this application may further include a conveyor belt assembly 80, which may include a conveyor belt 81, a drive wheel 82 and a driven wheel 83 disposed on the conveyor belt 81, and a conveyor belt drive member 84; the conveyor belt assembly 80 is disposed in the receiving bin 10 and located above the reaction port 11, and the drive wheel 82 may include a wheel housing 821 with a cooling chamber 8211, a water inlet pipe 822 fixed to one side of the wheel housing 821, and a rotatably disposed on the wheel. The return water pipe 823 on the other side of the outer shell 821, the inlet water pipe 822, and the return water pipe 823 are respectively provided with inlet holes 8221 and return water holes 8231. Both inlet holes 8221 and return water holes 8231 are located in the cooling chamber 8211. Coolant can be introduced into the cooling chamber 8211 of the wheel shell 821 through the inlet water pipe 822 and the return water pipe 823 to form a cooling cycle. Through heat exchange between the wheel shell 821 and the conveyor belt 81, the conveyor belt 81 can be cooled. The conveyor belt drive 84 is drivably connected to the inlet water pipe 822 and is used to drive the inlet water pipe 822 and drive the wheel shell 821 to rotate, so as to realize the rotation of the conveyor belt assembly 80. The conveyor belt assembly 80 can be used to replace the roller assembly 20 to collect single-walled carbon nanotubes. By setting a cooling chamber 8211 in the drive wheel 82 of the conveyor belt assembly 80, the conveyor belt 81 can be cooled by coolant, so that the conveyor belt 81 can be kept at a low temperature. When the airflow carrying single-walled carbon nanotubes flows out from the reaction port 11 passes through the conveyor belt assembly 80, the single-walled carbon nanotubes condense and deposit on the conveyor belt 81, thereby realizing the collection of single-walled carbon nanotubes.

[0047] Optionally, such as Figure 6 As shown, in some embodiments, the conveyor belt assembly 80 may further include a scraper 85, which is disposed on one side of the conveyor belt 81 and has a gap between its front end and the conveyor belt 81. As the conveyor belt 81 moves, the scraper 85 contacts the single-walled carbon nanotubes on the conveyor belt 81, thereby scraping the single-walled carbon nanotubes on the conveyor belt 81 into the receiving bin 10.

[0048] Optionally, such as Figure 6 and Figure 7 As shown, in some embodiments, the conveyor belt drive 84 may include a conveyor belt drive motor 841 and a conveyor belt transmission component 842. The conveyor belt transmission component 842 is driveably connected to the conveyor belt drive motor 841 and the water inlet pipe 822. The water inlet pipe 822 is connected to a conveyor belt rotary joint 86. The conveyor belt drive motor 841 can drive the water inlet pipe 822 to rotate via the conveyor belt transmission component 842, thereby driving the drive wheel 82 to rotate. The conveyor belt rotary joint 86 can be used to connect coolant and ensure the sealing of the water inlet pipe 822 during rotation to avoid leakage. The conveyor belt transmission component 842 can generally be implemented as a drive sprocket assembly or a drive belt pulley assembly.

[0049] According to another aspect of this application, such as Figure 8 and Figure 9 As shown, this application also provides a single-walled carbon nanotube (SCH) preparation apparatus, which may include a receiving device, a reaction chamber 60, and a receiving chamber 70 as described above. The reaction chamber 60 is equipped with a furnace tube 61, which is used to connect to the reaction port 11 of the receiving device. The furnace tube 61 can be used to place raw materials for the reaction, and the SCH formed after the reaction will enter the receiving chamber 10 with the airflow. The receiving chamber 70 is located below the receiving chamber 10 of the receiving device, and has a receiving port 71. A vacuum valve 72 is provided between the receiving chamber 10 and the receiving chamber 70. When it is necessary to remove the SCH, the vacuum valve 72 can be opened to allow the SCH in the receiving chamber 10 to fall into the receiving chamber 70, and the vacuum valve 72 can be closed to separate the receiving chamber 10 from the receiving chamber 70. The SCH can then be removed from the receiving port 71 to ensure continuous production.

[0050] Optionally, such as Figure 8 As shown, in some embodiments, the single-walled carbon nanotube (SUV) preparation equipment has a horizontal structure, with the reaction chamber 60 located on the side of the receiving chamber 10, and the furnace tube 61 extending horizontally. The raw materials for the reaction are placed inside the furnace tube 61, and the SUVs formed after the reaction are carried horizontally into the receiving chamber 10 by the airflow and collected by the roller assembly 20. By setting the furnace tube 61 horizontally, a horizontal airflow path is formed, which reduces the deposition of SUVs in the furnace tube 61 due to gravity and other factors, thereby reducing the loss of SUVs and improving the collection rate.

[0051] Optionally, such as Figure 9As shown, in some embodiments, the single-walled carbon nanotube preparation equipment has a vertical structure, with a receiving bin 10 surrounding the reaction chamber 60 and a furnace tube 61 extending vertically. The raw materials for the reaction are placed at the bottom of the furnace tube 61. After the reaction, the formed single-walled carbon nanotubes are carried upwards by the airflow into the receiving bin 10 and collected by the roller assembly 20 positioned above the furnace tube 61. By arranging the furnace tube 61 vertically and stacking the reaction chamber 60, receiving bin 10, and taking bin 70 vertically, the horizontal space occupied by the equipment can be reduced, while the vertical space utilization can be improved, thereby reducing the equipment's floor space.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A material collection device, characterized by, The application relates to a material collecting device. The material collecting device comprises a material collecting bin provided with a reaction port and an exhaust port; a roller assembly comprising a roller shell arranged in the material collecting bin and above the reaction port, a magnet assembly arranged in the roller shell, and a cooling pipeline; the magnet assembly comprises a magnet shell and a plurality of magnets arranged in a ring array to form a magnet array, and a water inlet area is formed between the magnet arrays; the magnet array is arranged in the magnet shell, a water return area is formed between the magnet array and the magnet shell, and the water inlet area is communicated with the water return area; the cooling pipeline is respectively communicated with the water inlet area and the water return area. The roller driving member is drivingly connected to the roller assembly. The cooling pipeline comprises a water inlet pipe and a water outlet pipe which are respectively communicated with the shell; the water inlet pipe is arranged in the water outlet pipe to form a water return channel between the water inlet pipe and the water outlet pipe; the water outlet pipe is fixed to the magnet shell so that the water return channel is communicated with the water return area; the water inlet pipe has a water inlet channel, and the magnet array is arranged around the water inlet pipe so that the water inlet channel is communicated with the water inlet area. The rear end of the magnet shell is provided with an interface; the water outlet pipe comprises a connecting portion connected to the interface and a pipe body connected to the connecting portion; the front end of the connecting portion is provided with a water inlet port and a water return port around the water inlet port; the water inlet pipe is inserted into the water inlet port, and a plurality of sealing members are arranged between the connecting portion and the water inlet pipe; the water return port is communicated with the water return area and the water return channel.

2. The material receiving device of claim 1, wherein The magnet assembly comprises a plurality of magnet arrays and a plurality of spacing members; the spacing members are respectively arranged between the magnet arrays to form a cooling interlayer between two adjacent magnet arrays, and the cooling interlayer is communicated with the water inlet area and the water return area.

3. The material receiving device of claim 2, wherein, The material collecting device further comprises a scraper assembly comprising a scraper plate slidably arranged outside the roller shell and a scraper driving member drivingly connected to the scraper plate, and the scraper driving member is used to drive the scraper plate to slide back and forth between the first end and the second end of the roller shell.

4. The material collection device of claim 2, wherein, The material collecting device further comprises a blowing assembly comprising a blowing head arranged at the first end of the roller shell of the roller assembly and a gas pipe connected to the blowing head.

5. The material collecting device according to any one of claims 1 to 4, characterized in that The blowing assembly further comprises a guide rod arranged in the material collecting bin and a blowing driving member; the guide rod is arranged in the vertical direction, the gas pipe is slidably connected to the guide rod, and the blowing driving member is drivingly connected to the gas pipe to drive the gas pipe to slide relative to the guide rod.

6. The material collection device of claim 5, wherein, The application relates to a material collecting device.

7. The material collection device of claim 6, wherein, The material collecting device comprises a reaction bin provided with a furnace pipe connected to the reaction port of the material collecting device.

8. A single-walled carbon nanotube production apparatus characterized by comprising: The material collecting device further comprises a material taking bin arranged below the material collecting bin of the material collecting device; the material taking bin is provided with a material taking port; and a vacuum plug valve is arranged between the material collecting bin and the material taking bin. The single-walled carbon nanotube preparation equipment is in a horizontal structure, the reaction bin is arranged at the side of the material collecting bin, and the furnace pipe extends in the horizontal direction. ​ ​ ​ 9. The single-walled carbon nanotube production apparatus according to claim 8, wherein ​ 10. The single-walled carbon nanotube production apparatus according to claim 8, wherein The single-wall carbon nanotube preparation device is of a vertical structure, the collecting bin is arranged around the reaction bin, and the furnace tube extends in the vertical direction.

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