Feed module and single-walled carbon nanotube production apparatus

Abstract

The application relates to a feeding module and a single-wall carbon nanotube production device, which comprises a mixing cavity, a first feeding mechanism and a second feeding mechanism. The first feeding mechanism comprises a storage device, a powder feeder and a plasma generator. The powder feeder is in communication with the storage device and the plasma generator respectively, and is used for providing the powder-like catalyst stored in the storage device to the plasma generator. The plasma generator can ionize the catalyst conveyed by the powder feeder, and provide the ionized gaseous catalyst to the mixing cavity. The second feeding mechanism comprises an air inlet pipe, which is in communication with the mixing cavity and can simultaneously provide the mixing cavity with carbon source gas and carrier gas. The mixing cavity can mix the ionized catalyst, the carbon source gas and the carrier gas to form a reaction gas. In this way, the carbon source gas and the catalyst can be fully mixed, which is beneficial to improving the yield and quality of the subsequent preparation of single-wall carbon nanotubes.

Description

Technical Field

[0001] This invention belongs to the technical field of single-walled carbon nanotube preparation, and in particular relates to a feeding module and single-walled carbon nanotube production equipment. Background Technology

[0002] Single-walled carbon nanotubes (SWCNTs) are composed of carbon atoms, and their geometry can be considered as a hollow cylinder seamlessly rolled from a single layer of graphene. They possess excellent electronic, mechanical, and other properties, and have wide applications in energy, biomedicine, and other fields. Floating catalytic chemical vapor deposition (Floating catalytic chemical vapor deposition) is a key technology for the continuous, large-scale preparation of SWCNTs and their macroscopic assemblies (such as films, fibers, and aerogels). Its basic principle involves introducing a carbon source gas (such as methane, ethylene, or natural gas), a catalyst (such as tungsten-molybdenum alloys or nickel-based alloys), and a carrier gas (such as hydrogen or argon) into a reactor within a high-temperature reaction zone. Under specific conditions, the catalyst forms catalyst nanoparticles and catalyzes the decomposition of the carbon source, ultimately growing SWCNTs, which are then expelled from the high-temperature reaction zone as aerosols or gaseous products along with the carrier gas.

[0003] Currently, there are two main feeding methods in single-walled carbon nanotube (SHU) production equipment: one method involves pre-mixing the carbon source gas, carrier gas, and catalyst gas in a mixing tank to produce reaction gas, which is then introduced into the reactor; the other method involves mixing the carbon source gas and carrier gas in a specific ratio and conveying them through an independent channel, while placing the solid catalyst directly at the front end of the reactor. Although both methods can achieve the preparation of SHU, they still have significant limitations: on the one hand, the reaction gas is difficult to fully mix and vaporize before entering the high-temperature zone, resulting in insufficient contact between the catalyst and the carbon source gas, reduced reaction efficiency, and affected yield; on the other hand, due to the difference in gas density, light and heavy gases are prone to stratification within the reactor, lacking an effective mixing mechanism, further exacerbating the problem of incomplete reaction, ultimately leading to the difficulty in achieving ideal levels of both yield and quality of SHU. Summary of the Invention

[0004] In view of this, it is necessary to provide a feeding module and a single-walled carbon nanotube production equipment to solve the above-mentioned technical problems.

[0005] A feeding module, used in a single-walled carbon nanotube production equipment, is used to supply reaction gas to the reactor tubes; the feeding module includes:

[0006] Mixing chamber;

[0007] The first feeding mechanism includes a storage tank, a powder feeder, and a plasma generator. The powder feeder is connected to the storage tank and the plasma generator respectively, and is used to supply the powdered catalyst stored in the storage tank to the plasma generator. The plasma generator is capable of ionizing the catalyst conveyed by the powder feeder and supplying the ionized gaseous catalyst to the mixing chamber.

[0008] The second feeding mechanism includes an air inlet pipe, which is connected to the mixing chamber and can simultaneously supply carbon source gas and carrier gas to the mixing chamber.

[0009] The mixing chamber is capable of mixing the ionized catalyst, the carbon source gas, and the carrier gas to form the reaction gas.

[0010] It is understandable that a plasma generator is used to ionize powdered catalysts to form a plasma gas cloud composed of free electrons and positively charged catalyst ions. The positively charged catalyst ions, due to their high energy and reactivity, easily penetrate into the interior of the carbon source gas and are restored to neutral catalyst by absorbing free electrons from the carbon source gas. At the same time, the carbon source gas ions, which have lost free electrons and become positively charged, will combine with the free electrons ionized from the catalyst. This achieves thorough mixing between the catalyst and the carbon source gas, which is beneficial to improving the yield and quality of subsequent preparation of single-walled carbon nanotubes.

[0011] In one embodiment, a primary gas distribution plate is provided in the mixing chamber, and the primary gas distribution plate is disposed on the flow path of the reactant gas in the mixing chamber;

[0012] The primary gas distribution plate has multiple first gas outlet holes for the reaction gas to flow through it.

[0013] In one embodiment, the thickness of the primary air distribution plate is set to H1, wherein 5mm≤H1≤10mm;

[0014] The diameter of the first air outlet is set to D1, where 10mm≤D1≤15mm; and the distance between two adjacent first air outlets is set to L1, where 2mm+D1≤L1≤2D1.

[0015] It is understandable that the structure of the first-stage gas separator plate allows it to shear and disturb the reactant gas passing through it. This causes the reactant gas passing through the first-stage gas separator plate to form turbulent vortices, thereby further improving the mixing effect between the carbon source gas and the catalyst.

[0016] In one embodiment, a secondary gas distribution plate is further provided in the mixing chamber, and the secondary gas distribution plate is disposed on the flow path of the reaction gas after passing through the primary gas distribution plate;

[0017] The secondary gas separator plate has multiple second gas outlet holes for the reaction gas to flow through it.

[0018] In one embodiment, in the flow direction of the reactant gas in the mixing chamber, a distance L2 is formed between the secondary gas separator and the primary gas separator, wherein 30mm≤L2≤50mm;

[0019] The thickness of the secondary air distribution plate is set to H2, where H2 > 30mm; the diameter of the second air outlet is set to D2, where 5mm ≤ D2 ≤ 10mm; and the distance between two adjacent second air outlets is set to L3, where 2mm + D2 ≤ L3 ≤ 2D2.

[0020] It is understandable that the structure of the aforementioned secondary gas distribution plate enables it to regulate and control the distribution of the reactant gas. This effectively improves the uniformity of the reactant gas flow, promoting a uniform and stable output of the reactant gas from the mixing chamber. This not only facilitates a more balanced flow rate and component distribution of the reactant gas when it enters the reactor tube, but also helps to form a stable and predictable flow field within the reactor tube, reducing incomplete reactions caused by gas segregation or stratification. Furthermore, it promotes the yield and quality of single-walled carbon nanotubes.

[0021] In one embodiment, the first feeding mechanism further includes a first connecting tube, and the plasma generator is installed at one end of the first connecting tube and communicates with the first connecting tube;

[0022] The second feeding mechanism further includes a second connecting pipe, the air inlet pipe is connected and communicates with the second connecting pipe, and the carbon source gas and the carrier gas provided by the air inlet pipe can be introduced into the mixing chamber after passing through the second connecting pipe;

[0023] The second connecting tube is disposed between the mixing chamber and the other end of the first connecting tube, and is connected and sealed to the mixing chamber and the first connecting tube respectively, so that the ionized catalyst is introduced into the mixing chamber after passing through the first connecting tube and the second connecting tube in sequence.

[0024] In one embodiment, the first connecting tube is detachably connected to the second connecting tube.

[0025] Understandably, by designing the first and second connecting tubes as detachable connection structures, the plasma generator can be quickly installed or removed as an independent module. This not only improves the flexibility of the configuration of single-walled carbon nanotube production equipment, allowing users to choose whether to install a plasma generator based on actual process requirements or reaction conditions, but also facilitates the adaptation of the feeding module to different production scenarios and technical requirements, and reduces the initial purchase and subsequent upgrade and maintenance costs of the equipment, thereby meeting the differentiated usage needs of diverse user groups.

[0026] In one embodiment, the number of the first feeding mechanisms is set to multiple.

[0027] This application also provides a single-walled carbon nanotube production equipment, including the feeding module described above.

[0028] In one embodiment, the single-walled carbon nanotube production equipment further includes a reactor tube;

[0029] The mixing chamber is inserted into the inlet of the reactor tube and abuts against and limits its position.

[0030] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0031] The feeding module and single-walled carbon nanotube production equipment claimed in this application use a plasma generator to ionize powdered catalyst to form a plasma gas cloud composed of free electrons and positively charged catalyst ions. The positively charged catalyst ions, due to their high energy and reactivity, easily penetrate into the interior of the carbon source gas and recover into a gaseous catalyst by absorbing free electrons from the carbon source gas. At the same time, the positively charged carbon source gas ions, having lost free electrons, combine with the free electrons ionized from the catalyst. This achieves thorough mixing between the catalyst and the carbon source gas, which is beneficial for improving the yield and quality of subsequent single-walled carbon nanotube production. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the single-walled carbon nanotube production equipment provided in this application.

[0034] Figure 2 for Figure 1A schematic diagram of a local part of the structure.

[0035] Figure 3 This is a partial structural diagram of the mixing cavity in this application.

[0036] Figure 4 This is a simulation diagram of the reaction gas flowing through the primary and secondary gas separator plates in this application.

[0037] Figure 5 This is a mass distribution diagram of the reactant gas flowing through the primary gas separator in this application.

[0038] Figure 6 This is a mass distribution diagram of the reactant gas as it flows sequentially through the primary and secondary gas separator plates in this application.

[0039] Reference numerals: 1000, Single-walled carbon nanotube production equipment; 100, Feeding module; 10, Mixing chamber; 11, Primary gas distribution plate; 111, First gas outlet; 12, Secondary gas distribution plate; 121, Second gas outlet; 20, First feeding mechanism; 210, Conveying hose; 21, Storage container; 22, Powder feeder; 23, Plasma generator; 24, First connecting pipe; 25, Mounting bracket; 30, Second feeding mechanism; 31, Inlet pipe; 32, Second connecting pipe; 33, Heating pipe; 200, Reactor tube; 201, Inlet; 300, Support platform; 301, Sliding guide rail. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] The feed module 100 claimed in this application is used in a single-walled carbon nanotube production equipment 1000 to provide the reactor tube 200 with the reaction gas required for the preparation of single-walled carbon nanotubes. Here, the reaction gas is a mixture of carbon source gas, carrier gas, and ionized gaseous catalyst.

[0044] like Figure 1 , Figure 2 As shown, the feeding module 100 provided in this application includes a mixing chamber 10, a first feeding mechanism 20, and a second feeding mechanism 30. The first feeding mechanism 20 includes a storage tank 21, a powder feeder 22, and a plasma generator 23. The powder feeder 22 is connected to the storage tank 21 and the plasma generator 23, respectively, and is used to supply the powdered catalyst (not shown) stored in the storage tank 21 to the plasma generator 23. The plasma generator 23 can ionize the catalyst conveyed by the powder feeder 22 and supply the ionized gaseous catalyst to the mixing chamber 10. The second feeding mechanism 30 includes an air inlet pipe 31, which is connected to the mixing chamber 10 and can simultaneously supply carbon source gas (not shown) and carrier gas (not shown) to the mixing chamber 10. The mixing chamber 10 can mix the ionized catalyst, carbon source gas, and carrier gas to form a reactive gas (not shown). Here, the carbon source gas mentioned above includes, but is not limited to, methane, ethane, or propane. The carbon source gas is first mixed with argon and / or hydrogen in a certain proportion and then introduced into the mixing chamber 10 under the guidance of the inlet pipe 31. The catalyst mentioned above can be a transition metal catalyst (iron, cobalt, nickel), alloy (tungsten-molybdenum alloy, nickel-based alloy), etc., which can be selected according to actual needs, and will not be elaborated here.

[0045] As can be seen from the above, the feeding module 100 of this application uses a plasma generator 23 to ionize the powdered catalyst to form a plasma gas cloud composed of free electrons and positively charged catalyst ions. The positively charged catalyst ions have high energy and reactivity, making it easy to penetrate into the interior of the carbon source gas and restore the catalyst to a gaseous state by absorbing free electrons from the carbon source gas. At the same time, the carbon source gas ions that have lost free electrons and become positively charged will combine with the free electrons ionized from the catalyst. This can achieve full mixing between the catalyst and the carbon source gas, which is beneficial to improving the yield and quality of subsequent preparation of single-walled carbon nanotubes.

[0046] It should be noted that, since the carrier gas discharged into the mixing chamber 10 along with the carbon source gas by the second feeding mechanism 30 of this application is an inert gas, the presence of the carrier gas will not affect the absorption of free electrons of the carbon source gas by the positively charged catalyst ions in the plasma cloud, and the catalyst and carbon source gas will be fully mixed.

[0047] like Figures 2 to 5 As shown, in one embodiment, a primary gas distribution plate 11 is provided inside the mixing chamber 10. The primary gas distribution plate 11 is located on the flow path of the reactant gas inside the mixing chamber 10. Furthermore, a plurality of first gas outlet holes 111 are distributed on the primary gas distribution plate 11 so that the reactant gas can flow through the primary gas distribution plate 11. This allows the primary gas distribution plate 11 to disturb the reactant gas flowing through it, thereby forming a turbulent vortex. This can further improve the mixing effect between the carbon source gas and the catalyst.

[0048] Here, the thickness of the primary air distribution plate 11 is set to H1, where 5mm ≤ H1 ≤ 10mm; the diameter of the first air outlet 111 is set to D1, where 10mm ≤ D1 ≤ 15mm; and the distance between two adjacent first air outlets 111 is set to L1, where 2mm + D1 ≤ L1 ≤ 2D1. It should be noted that H1 can be 5mm, 7mm, 10mm, etc., D1 can be 10mm, 12mm, 14mm, 15mm, etc., and L1 can be specifically set based on the value of D1, which will not be elaborated here. It should also be noted that the distance between two adjacent first air outlets 111 is specifically the distance between the center points of two adjacent first air outlets 111.

[0049] like Figures 2 to 4 , Figure 6 As shown, in one embodiment, a secondary gas distribution plate 12 is also provided inside the mixing chamber 10. The secondary gas distribution plate 12 is positioned on the flow path of the reactant gas after passing through the primary gas distribution plate 11. Furthermore, multiple second gas outlet holes 121 are distributed on the secondary gas distribution plate 12 to allow the reactant gas to flow through the secondary gas distribution plate 12. In other words, after passing through the primary gas distribution plate 11, the reactant gas in the mixing chamber 10 of this embodiment can be regulated and its distribution controlled by the secondary gas distribution plate 12. This effectively improves the uniformity of the reactant gas flow, promoting a uniform and stable output of the reactant gas from the mixing chamber 10. This not only facilitates a more balanced flow rate and component distribution of the reactant gas when it subsequently enters the reactor tube 200, but also helps to form a stable and predictable flow field within the reactor tube 200, reducing the problem of incomplete reaction caused by gas segregation or stratification, thereby promoting the yield and quality of single-walled carbon nanotubes.

[0050] Here, in the flow direction of the reactant gas within the mixing chamber 10, a distance L2 is formed between the secondary gas distribution plate 12 and the primary gas distribution plate 11, wherein 30mm ≤ L2 ≤ 50mm; specifically, in this embodiment, the thickness of the secondary gas distribution plate 12 is set to H2, wherein H2 > 30mm; the aperture of the second gas outlet 121 is set to D2, wherein 5mm ≤ D2 ≤ 10mm; and the distance between two adjacent second gas outlets 121 is set to L3, wherein 2mm + D2 ≤ L3 ≤ 2D2. It should be noted that L2 can be 30mm, 36mm, 45mm, 50mm, etc., H2 can be 32mm, 36mm, 40mm, 42mm, etc., D2 can be 5mm, 8mm, 10mm, etc., and L3 can be specifically set according to the value of D2, which will not be elaborated here.

[0051] It should be noted that the number of primary air distribution plate 11 and secondary air distribution plate 12 in this application is one. The primary air distribution plate 11 and / or the secondary air distribution plate 12 can be fixed to the mixing cavity 10 by welding, interference fit or other means. Since it is not the focus of the protection claimed in this application, it will not be elaborated here.

[0052] like Figure 2 As shown, in one embodiment, the powder feeder 22 can be connected to the plasma generator 23 via a conveying hose 210, allowing the powder feeder 22 to quantitatively deliver the catalyst stored in the storage tank 21 to the plasma generator 23 during operation, and the plasma generator 23 to ionize the powdered catalyst delivered by the powder feeder 22. Here, both the powder feeder 22 and the plasma generator 23 can employ conventional methods of the prior art. For those skilled in the art, the method by which the plasma generator 23 ionizes the quantitatively delivered powdered catalyst from the powder feeder 22 and extracts the gaseous catalyst is easily achievable, and will not be elaborated upon here.

[0053] like Figure 2As shown, in one embodiment, the first feeding mechanism 20 further includes a first connecting pipe 24, and a plasma generator 23 is installed at one end of the first connecting pipe 24 and communicates with the first connecting pipe 24; the second feeding mechanism 30 further includes a second connecting pipe 32, and an air inlet pipe 31 communicates with the second connecting pipe 32, and the carbon source gas and carrier gas provided by the air inlet pipe 31 can be introduced into the mixing chamber 10 after passing through the second connecting pipe 32; and the second connecting pipe 32 is disposed between the mixing chamber 10 and the other end of the first connecting pipe 24, and is respectively connected and sealed to the mixing chamber 10 and the first connecting pipe 24, so that the ionized catalyst is introduced into the second connecting pipe 32 after passing through the first connecting pipe 24 and the second connecting pipe 32 in sequence. In other words, when the feeding module 100 of this embodiment is working, the first feeding mechanism 20 first introduces the ionized gaseous catalyst into the second connecting pipe 32 through the first connecting pipe 24, and then introduces it into the mixing chamber 10 along with the carbon source gas and carrier gas introduced by the air inlet pipe 31.

[0054] Here, the first connecting tube 24 and the plasma generator 23 and the second connecting tube 32, and the second connecting tube 32 and the mixing chamber 10 can be assembled and connected by flange connection, respectively. Since this is not the focus of this application, it will not be elaborated here.

[0055] like Figure 2 As shown, in one embodiment, one end of the inlet pipe 31 extending from the second connecting pipe 32 is connected to and communicates with a heating pipe 33. The carbon source gas and carrier gas can pass through the heating pipe 33 and be input into the inlet pipe 31. During this process, the heating pipe 33 can be used to preheat the carbon source gas and carrier gas to meet the requirements for subsequent preparation of single-walled carbon nanotubes after mixing with the catalyst. It should be noted that preheating the carbon source gas and carrier gas is a requirement of the single-walled carbon nanotube preparation process. Specifically, heating wires can be wound around the heating pipe 33 to preheat the carbon source gas and carrier gas passing through it. Since this is not the focus of this application, it will not be elaborated upon here.

[0056] like Figure 2 As shown, in one embodiment, the first connecting tube 24 is detachably connected to the second connecting tube 32, so that the plasma generator 23 can be quickly installed or removed as an independent module. This not only improves the configuration flexibility of the single-walled carbon nanotube production equipment 1000, allowing users to choose whether to install the plasma generator 23 according to actual process requirements or reaction conditions, but also facilitates adaptation to different production scenarios and technical requirements, and reduces the initial purchase and subsequent upgrade and maintenance costs of the equipment, thereby meeting the differentiated usage needs of diverse user groups.

[0057] like Figure 2As shown, the first feeding mechanism 20 also includes a mounting bracket 25, on which the first connecting tube 24 is mounted. That is, the first feeding mechanism 20 can use the mounting bracket 25 to support the first connecting tube 24. The mounting bracket 25 is slidably mounted on the sliding guide rail 301 of the support platform 300 in the single-walled carbon nanotube production equipment 1000, allowing the mounting bracket 25 to drive the first connecting tube 24 to slide on the sliding guide rail 301. This facilitates the movement of the first connecting tube 24 relative to the second connecting tube 32, thus facilitating the assembly and disassembly of the first connecting tube 24 and the second connecting tube 32. Here, the reactor tube 200 is mounted on the support platform 300.

[0058] like Figure 2 As shown, in one embodiment, the number of first feeding mechanisms 20 is set to multiple. That is, the first feeding mechanism 20 in this embodiment can simultaneously provide catalyst to multiple mixing chambers 10 respectively. It should be noted that the second feeding mechanism 30 and the mixing chambers 10 in the feeding module 100 of this embodiment are arranged correspondingly to the first feeding mechanism 20.

[0059] Here, there are two first feeding mechanisms 20. Of course, in other embodiments, there may be three, four, or even more first feeding mechanisms 20, depending on actual needs, which will not be elaborated here.

[0060] like Figure 1 As shown, this application also provides a single-walled carbon nanotube production equipment 1000, including the above-mentioned feeding module 100.

[0061] like Figure 1 As shown, in one embodiment, the single-walled carbon nanotube production equipment 1000 further includes a reactor tube 200. A mixing chamber 10 is partially inserted into the inlet 201 of the reactor tube 200 and abuts against and is positioned within the reactor tube 200. This facilitates the assembly and application of the mixing chamber 10 within the single-walled carbon nanotube production equipment 1000. Here, the reactor tube 200 can directly heat the reaction gas provided by the feeding module 100 to above 1000°C to meet the requirements for single-walled carbon nanotube preparation. It should be noted that the aforementioned reactor tube 200 can be constructed using conventional methods of the prior art, which will not be elaborated upon here.

[0062] 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.

[0063] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A feeding module, applied in a single-walled carbon nanotube production equipment (1000), for supplying reaction gas to a reactor tube (200); characterized in that, The feeding module includes: Mixing cavity (10); The first feeding mechanism (20) includes a storage tank (21), a powder feeder (22) and a plasma generator (23). The powder feeder (22) is connected to the storage tank (21) and the plasma generator (23) respectively, and is used to supply the powdered catalyst stored in the storage tank (21) to the plasma generator (23). The plasma generator (23) is capable of ionizing the catalyst delivered by the powder feeder (22) and supplying the ionized gaseous catalyst to the mixing chamber (10). The second feeding mechanism (30) includes an air inlet pipe (31), which is connected to the mixing chamber (10) and can simultaneously supply carbon source gas and carrier gas to the mixing chamber (10); The mixing chamber (10) is capable of mixing the ionized catalyst, the carbon source gas, and the carrier gas to form the reaction gas; The mixing chamber (10) is provided with a primary gas distribution plate (11), which is located on the flow path of the reaction gas in the mixing chamber (10). The primary gas distribution plate (11) has a plurality of first gas outlet holes (111) distributed on it, so that the reaction gas can flow through the primary gas distribution plate (11) to form a turbulent vortex. The mixing chamber (10) is further provided with a secondary gas distribution plate (12), which is located on the flow path of the reaction gas after passing through the primary gas distribution plate (11); the secondary gas distribution plate (12) is provided with a plurality of second gas outlet holes (121) for the reaction gas to flow through the secondary gas distribution plate (12) so as to regulate and control the distribution of the reaction gas; The first feeding mechanism (20) further includes a first connecting tube (24), and the plasma generator (23) is installed at one end of the first connecting tube (24) and communicates with the first connecting tube (24); The second feeding mechanism (30) further includes a second connecting pipe (32), the air inlet pipe (31) is connected to the second connecting pipe (32), and the carbon source gas and the carrier gas provided by the air inlet pipe (31) can be introduced into the mixing chamber (10) after passing through the second connecting pipe (32). The second connecting tube (32) is disposed between the other end of the mixing chamber (10) and the first connecting tube (24), and is connected and sealed to the mixing chamber (10) and the first connecting tube (24) respectively, so that the ionized catalyst is introduced into the mixing chamber (10) after passing through the first connecting tube (24) and the second connecting tube (32) in sequence; wherein, the first connecting tube (24) is detachably connected to the second connecting tube (32).

2. The feeding module according to claim 1, characterized in that, The thickness of the primary air distribution plate (11) is set to H1, wherein 5mm≤H1≤10mm; The diameter of the first vent (111) is set to D1, where 10mm≤D1≤15mm; and the distance between two adjacent first vents (111) is set to L1, where 2mm+D1≤L1≤2D1.

3. The feeding module according to claim 1, characterized in that, In the direction of the flow of the reaction gas in the mixing chamber (10), a gap L2 is formed between the secondary gas distribution plate (12) and the primary gas distribution plate (11), wherein 30mm≤L2≤50mm; The thickness of the secondary air distribution plate (12) is set to H2, where H2 > 30 mm; the diameter of the second air outlet (121) is set to D2, where 5 mm ≤ D2 ≤ 10 mm; and the distance between two adjacent second air outlets (121) is set to L3, where 2 mm + D2 ≤ L3 ≤ 2D2.

4. The feeding module according to claim 1, characterized in that, The number of the first feeding mechanism (20) is set to multiple.

5. A single-walled carbon nanotube production device, characterized in that, Includes the feeding module (100) as described in any one of claims 1 to 4.

6. The single-walled carbon nanotube production equipment according to claim 5, characterized in that, The single-walled carbon nanotube production equipment (1000) also includes a reactor tube (200). The mixing chamber (10) is partially inserted into the inlet (201) of the reactor tube (200).

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