A high-pressure jet atomizing device for processing carbon nanotubes

Abstract

The application relates to the technical field of carbon nanotube processing, in particular to a high-pressure jet atomization device for carbon nanotube processing; the device comprises a reactor, a carrier gas storage tank, a catalyst storage tank, a carbon source storage tank, an atomization mechanism, a distribution mechanism, a cyclone separator, a material collecting mechanism and a waste gas collecting tank; the outlets of the carrier gas storage tank and the catalyst storage tank are connected with the inlets of the atomization mechanism respectively; the outlet of the carbon source storage tank and the outlet of the atomization mechanism are connected with the inlets of the distribution mechanism respectively; the distribution mechanism is fixedly arranged on the top of the reactor; the outlet of the reactor is connected with the inlet of the cyclone separator; the bottom material outlet of the cyclone separator is connected with the inlet of the material collecting mechanism; and the top gas outlet of the cyclone separator is connected with the inlet of the waste gas collecting tank; the device forms a complete continuous chemical process flow from raw material supply, atomization mixing, reaction growth to product separation and collection, and solves the technical problems of discontinuous production and low efficiency in traditional intermittent operation.

Description

Technical Field

[0001] This invention relates to the field of carbon nanotube processing technology, and in particular to a high-pressure jet atomization device for carbon nanotube processing. Background Technology

[0002] Since their discovery in the 1990s, carbon nanotubes have shown great promise in fields such as composite material reinforcement, electronic devices, energy storage electrodes, and catalyst supports due to their ultra-high tensile strength, excellent electrical and thermal conductivity, and good chemical stability. Currently, chemical vapor deposition (CVD) has become the mainstream technology for the industrial preparation of carbon nanotubes. Its basic principle is to use transition metal catalyst particles to catalytically decompose carbon-containing gases under high temperature conditions, causing carbon atoms to be deposited on the catalyst surface and directionally grown into tubular nanostructures.

[0003] Atomization introduction, as a technical route for continuous catalyst supply, involves atomizing the catalyst-containing mother liquor and carrying it into the reaction zone by a carrier gas, demonstrating potential for continuous production. However, existing atomization introduction technologies have significant drawbacks in practical applications: traditional ultrasonic or pressure atomization has poor adaptability to solid-containing mother liquors, is prone to clogging, and produces uneven droplet sizes; the mixing of the catalyst carrier gas and carbon source gas relies on passive diffusion, resulting in short mixing times, large concentration gradients, and low reaction efficiency; system heat management is inefficient, waste heat from exhaust gases is not recovered, leading to high energy consumption; and product collection is intermittent, disrupting continuous production conditions.

[0004] Therefore, there is an urgent need for a high-pressure jet atomization device for carbon nanotube processing to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art and provide a high-pressure jet atomization device for carbon nanotube processing.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A high-pressure jet atomization device for carbon nanotube processing includes a reactor, a carrier gas storage tank, a catalyst storage tank, a carbon source storage tank, an atomization mechanism, a distribution mechanism, a cyclone separator, a material receiving mechanism, and a waste gas collection box. The outlets of the carrier gas storage tank and the catalyst storage tank are respectively connected to the inlet of the atomization mechanism. The outlets of the carbon source storage tank and the atomization mechanism are respectively connected to the inlet of the distribution mechanism. The distribution mechanism is fixedly installed on the top of the reactor. The outlet of the reactor is connected to the inlet of the cyclone separator. The bottom outlet of the cyclone separator is connected to the inlet of the material receiving mechanism. The top outlet of the cyclone separator is connected to the inlet of the waste gas collection box.

[0007] Preferably, the atomizing mechanism includes a carrier gas inlet, a carrier gas nozzle, an atomizing mixing chamber, and an atomized gas outlet connected in sequence. The atomizing mechanism also includes a catalyst inlet and a heating jacket. The carrier gas nozzle is a Laval nozzle, comprising a converging section, a throat, and an expanding section connected in sequence. The atomizing mixing chamber includes a straight-tube mixing section and a narrowing-diameter acceleration section connected in sequence. The catalyst inlet is fixedly disposed on the side wall at the junction of the expanding section and the straight-tube mixing section. The heating jacket is fixedly sleeved outside the straight-tube mixing section and the narrowing-diameter acceleration section. The outlet of the carrier gas storage tank is connected to the carrier gas inlet, the outlet of the catalyst storage tank is connected to the catalyst inlet, and the atomized gas outlet is connected to the inlet of the distribution mechanism. The nozzle is existing technology and will not be described in detail here. The carrier gas is compressed and accelerated in the contraction section to reach the speed of sound at the throat, and then continues to accelerate to the speed of supersonic in the expansion section. The catalyst enters the atomization mixing chamber from the catalyst inlet to avoid nozzle blockage caused by synchronous entry with the carrier gas into the carrier gas nozzle, ensuring the purity of the supersonic carrier gas. The catalyst is strongly sheared and torn by the supersonic carrier gas in the straight pipe mixing section and fully mixed with the carrier gas. It is compressed again in the diameter reduction acceleration section to increase the pressure of the atomized gas when it is ejected, ensuring sufficient subsequent injection power. The heating jacket heats the mixed fluid, reduces the gas-liquid surface tension, and improves atomization efficiency. The atomization mechanism realizes a continuous and stable atomization supply of the catalyst mother liquor.

[0008] Preferably, the system further includes a heat exchanger, which is a partitioned heat exchanger. The heat exchanger includes an exhaust gas inlet, an exhaust gas outlet, a heat medium inlet, and a heat medium outlet. The heating jacket includes a heat exchange inlet and a heat exchange outlet. The exhaust gas inlet is connected to the top outlet of the cyclone separator, the exhaust gas outlet is connected to the inlet of the exhaust gas collection box, the heat medium inlet is connected to the heat exchange outlet, and the heat medium outlet is connected to the heat exchange inlet. The high-temperature exhaust gas generated by the reactor enters the heat exchanger through the exhaust gas inlet from the top outlet of the cyclone separator. The heat medium in the heating jacket enters the heat exchanger through the heat medium inlet. The two exchange heat in the partitioned heat exchanger in a non-contact manner. The cooled exhaust gas is discharged from the exhaust gas outlet into the exhaust gas collection box, and the heated heat medium flows back to the heating jacket from the heat medium outlet, thereby realizing waste heat recovery and reducing atomization energy consumption.

[0009] Preferably, the distribution mechanism is a sleeve-type distributor, which includes a coaxially sleeved central tube and an outer ring tube. The outer ring tube is fixedly installed at the top of the reactor, and the central tube is fixedly installed inside the outer ring tube. A carbon source inlet is opened at the top of the central tube, and an atomizing gas inlet is fixedly installed on the side wall of the outer ring tube. The outlet of the carbon source storage tank is connected to the carbon source inlet, and the outlet of the atomizing mechanism is connected to the atomizing gas inlet. The carbon source enters the reactor through the central tube from the carbon source inlet, and the atomizing gas enters the reactor through the outer ring tube from the atomizing gas inlet, forming a concentric annular flow field structure with the carbon source in the center and the atomizing gas surrounding it. The high-speed injected atomizing gas forms a low-pressure ejection zone at the bottom of the sleeve-type distributor, which generates a strong entrainment and suction effect on the central carbon source, causing the carbon source to be actively entrained into the atomizing gas. This allows the catalyst particles and carbon source molecules to achieve full contact in a very short time, creating conditions for the efficient growth of carbon nanotubes and the consistency of product quality, and effectively improving the reaction efficiency.

[0010] Preferably, the inner cavity of the central tube forms a carbon source channel, and the inner cavity of the outer ring tube forms an atomizing gas channel. The atomizing gas channel is a tapered flow channel that gradually narrows from top to bottom. The tapered flow channel further increases the flow velocity of the atomizing gas. According to Bernoulli's principle, the greater the fluid velocity, the lower the pressure, which further enhances the entrainment strength of the atomizing gas on the carbon source. At the same time, it guides the atomizing gas to converge uniformly along the axial direction of the outer ring tube, so that the contact reaction between the catalyst particles and the carbon source molecules is more complete.

[0011] Preferably, a flow-guiding ridge is fixedly provided on at least one of the outer wall surface of the central tube and the inner wall surface of the outer ring tube, and the flow-guiding ridge is a spiral ridge; the flow-guiding ridge forces the fluid in the atomizing gas channel to rectify and form a spiral flow. After the carbon source is sprayed out through the central tube, it is spirally wrapped by the surrounding atomizing gas, which prolongs the contact path and improves the mixing effect of the catalyst and the carbon source.

[0012] Preferably, the reactor comprises a buffer section, a growth section, and a settling section connected in sequence. The buffer section is a cone shape that gradually widens downward from the bottom of the outer ring pipe. The cone-shaped buffer section allows the mixed fluid to gradually reduce its flow velocity and restore static pressure during downward flow, while avoiding energy loss and local eddies caused by high-speed fluid directly impacting the inner wall. This provides a stable reaction environment for the growth of carbon nanotubes in the lower growth section. The grown carbon nanotubes and carrier gas then enter the cyclone separator through the settling section.

[0013] Preferably, a shoulder is formed at the connection between the buffer section and the growth section, and a plurality of protective gas nozzles are fixed on the shoulder and evenly distributed in the circumferential direction. The protective gas nozzles spray downward. The protective gas is injected into the reactor from an external gas source through the protective gas nozzles, forming a gas curtain on the inner wall of the growth section, reducing the deposition and adhesion of reaction products at the corner of the shoulder.

[0014] Preferably, an observation window is provided on the side wall of the growth segment.

[0015] Preferably, the receiving mechanism includes a switching valve and a first and a second collection tank connected in parallel. The inlet of the switching valve is connected to the bottom outlet of the cyclone separator, and the first and second outlets of the switching valve are respectively connected to the inlets of the first and second collection tanks. The cyclone separator is existing technology and will not be described in detail here. The carbon nanotube product separated by the cyclone separator is discharged from the bottom outlet and enters one of the collection pipes through the switching valve. When the collection tank is close to full or needs to be unloaded, the switching valve is operated to change the flow path and switch the product to another collection tank for continued collection. At the same time, the full collection tank is unloaded or replaced in a sealed manner to avoid system shutdown caused by intermittent unloading of a single tank and to achieve continuous operation of the entire device.

[0016] In summary, the present invention has the following beneficial effects: This invention connects the carrier gas storage tank, catalyst storage tank, and atomization mechanism, and the carbon source storage tank, and connects the distribution mechanism, with the distribution mechanism located at the top of the reactor. This constructs a dual-channel system of carrier gas-catalyst atomization injection and independent carbon source supply. Combined with a cyclone separator, a material collection mechanism, and a waste gas collection box, it forms a complete continuous process flow from raw material supply, atomization mixing, reaction growth to product separation and collection. This solves the technical problems of discontinuous production and low efficiency in traditional batch operations, and provides an equipment foundation for the industrial continuous preparation of carbon nanotubes.

[0017] The atomization mechanism of this invention uses a Laval nozzle to accelerate the carrier gas to supersonic speed. The catalyst is strongly sheared by the high-speed carrier gas in the atomization mixing chamber to form extremely small droplets. It integrates the functions of carrier gas acceleration, catalyst injection, mixing and atomization, and preheating and temperature regulation into one unit, so as to realize the continuous and stable atomization supply of solid mother liquor. It solves the technical problems of poor adaptability to solid mother liquor, easy clogging and uneven droplet size of traditional atomization methods.

[0018] The distribution mechanism of this invention adopts a sleeve-type distributor to form a concentric annular flow field structure with the carbon source in the center and the atomized gas surrounding it. When the atomized gas is ejected at high speed at the bottom outlet, a low-pressure ejection zone is formed, which generates a suction and entrainment effect on the carbon source gas in the center, so that the carbon source is actively entrained into the mainstream of the atomized gas, which enhances the turbulent mixing and uniform mixing between the gas phases. This solves the technical problems of the mixture of catalyst carrier gas and carbon source gas relying on passive diffusion, short mixing time, and large concentration gradient, and achieves rapid and uniform contact between the carbon source and catalyst particles.

[0019] The reactor guide section of this invention guides and adjusts the high-speed jet, smoothly transitioning the flow into a uniform mixed flow, providing a stable environment for the growth of carbon nanotubes; the indirect heat exchanger recovers waste heat from the exhaust gas for heating the jacket, reducing system energy consumption; the parallel dual collection tank switching enables continuous product collection, avoiding downtime caused by intermittent unloading; the above structures work together to form a highly efficient and energy-saving production system with heat recovery, continuous reaction, and continuous collection, solving the technical problems of extensive heat management, high energy consumption, and product collection disrupting continuous production conditions in the prior art. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the atomizing mechanism and heat exchanger structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the reactor and dispensing mechanism of the present invention; Figure 4 This is the present invention. Figure 3 An enlarged view of point A; Figure 5 This is a schematic diagram of the material receiving mechanism of the present invention; In the diagram, 1. Reactor; 11. Buffer section; 12. Growth section; 13. Settling section; 14. Shoulder; 15. Protective gas nozzle; 16. Observation window; 21. Carrier gas storage tank; 22. Catalyst storage tank; 23. Carbon source storage tank; 3. Atomizing mechanism; 31. Carrier gas inlet; 32. Carrier gas nozzle; 321. Contraction section; 322. Throat; 323. Expansion section; 33. Catalyst inlet; 34. Atomizing mixing chamber; 341. Straight pipe mixing section; 342. Reduction acceleration section; 35. Atomizing gas outlet; 36. Heating jacket; 1. Heat exchange inlet; 362. Heat exchange outlet; 4. Distribution mechanism; 40. Shell-and-tube distributor; 41. Central tube; 411. Carbon source inlet; 412. Carbon source channel; 42. Outer ring pipe; 421. Atomizing gas inlet; 422. Atomizing gas channel; 43. Guide rib; 5. Cyclone separator; 6. Material collection mechanism; 61. First collection tank; 62. Second collection tank; 63. Switching valve; 7. Waste gas collection box; 8. Heat exchanger; 81. Waste gas inlet; 82. Waste gas outlet; 83. Heat medium inlet; 84. Heat medium outlet. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Example

[0023] according to Figure 1 As shown, a high-pressure jet atomization device for carbon nanotube processing includes a reactor 1, a carrier gas storage tank 21, a catalyst storage tank 22, a carbon source storage tank 23, an atomization mechanism 3, a distribution mechanism 4, a cyclone separator 5, a material collection mechanism 6, and a waste gas collection box 7. The outlets of the carrier gas storage tank 21 and the catalyst storage tank 22 are respectively connected to the inlet of the atomization mechanism 3. The outlets of the carbon source storage tank 23 and the atomization mechanism 3 are respectively connected to the inlet of the distribution mechanism 4. The distribution mechanism 4 is fixedly installed on the top of the reactor 1. The outlet of the reactor 1 is connected to the inlet of the cyclone separator 5. The bottom outlet of the cyclone separator 5 is connected to the inlet of the material collection mechanism 6. The top outlet of the cyclone separator 5 is connected to the inlet of the waste gas collection box 7.

[0024] according to Figure 2 As shown, the atomizing mechanism 3 includes a carrier gas inlet 31, a carrier gas nozzle 32, an atomizing mixing chamber 34, and an atomizing gas outlet 35 connected in sequence. The atomizing mechanism 3 also includes a catalyst inlet 33 and a heating jacket 36. The carrier gas nozzle 32 is a Laval nozzle, which includes a converging section 321, a throat 322, and an expanding section 323 connected in sequence. The atomizing mixing chamber 34 includes a straight pipe mixing section 341 and a narrowing acceleration section 342 connected in sequence. The catalyst inlet 33 is fixedly installed on the side wall at the junction of the expanding section 323 and the straight pipe mixing section 341. The heating jacket 36 is fixedly sleeved outside the straight pipe mixing section 341 and the narrowing acceleration section 342. The outlet of the carrier gas storage tank 21 is connected to the carrier gas inlet 31, the outlet of the catalyst storage tank 22 is connected to the catalyst inlet 33, and the atomizing gas outlet 35 is connected to the inlet of the distribution mechanism 4.

[0025] according to Figure 2 As shown, it also includes a heat exchanger 8, which is a partitioned heat exchanger. The heat exchanger 8 includes an exhaust gas inlet 81, an exhaust gas outlet 82, a heat medium inlet 83, and a heat medium outlet 84. The heating jacket 36 includes a heat exchange inlet 361 and a heat exchange outlet 362. The exhaust gas inlet 81 is connected to the top outlet of the cyclone separator 5, the exhaust gas outlet 82 is connected to the inlet of the exhaust gas collection box 7, the heat medium inlet 83 is connected to the heat exchange outlet 362, and the heat medium outlet 84 is connected to the heat exchange inlet 361.

[0026] according to Figure 3 , Figure 4As shown, the distribution mechanism 4 is a sleeve-type distributor 40, which includes a central tube 41 and an outer ring tube 42 coaxially sleeved. The outer ring tube 42 is fixedly installed on the top of the reactor 1, and the central tube 41 is fixedly installed inside the outer ring tube 42. A carbon source inlet 411 is opened at the top of the central tube 41, and an atomizing gas inlet 421 is fixedly installed on the side wall of the outer ring tube 42. The outlet of the carbon source storage tank 23 is connected to the carbon source inlet 411, and the outlet of the atomizing mechanism 3 is connected to the atomizing gas inlet 421.

[0027] according to Figure 4 As shown, a carbon source channel 412 is formed in the inner cavity of the central tube 41, and an atomizing gas channel 422 is formed in the inner cavity of the outer ring tube 42. The atomizing gas channel 422 is a tapered flow channel that gradually narrows from top to bottom.

[0028] according to Figure 4 As shown, at least one of the outer wall surface of the central tube 41 and the inner wall surface of the outer ring tube 42 is fixedly provided with a flow guiding ridge 43, which is a spiral ridge.

[0029] according to Figure 3 As shown, reactor 1 includes a buffer section 11, a growth section 12 and a settling section 13 connected in sequence. The buffer section 11 is a cone shape that gradually widens from the bottom of the outer ring pipe 42 downwards.

[0030] according to Figure 3 As shown, a shoulder 14 is formed at the connection between the buffer section 11 and the growth section 12. Multiple protective gas nozzles 15 are fixed on the shoulder 14 and are evenly distributed in the circumferential direction. The spray direction of the protective gas nozzles 15 is downward.

[0031] according to Figure 3 As shown, an observation window 16 is provided on the side wall of the growth segment 12.

[0032] according to Figure 5 As shown, the receiving mechanism 6 includes a switching valve 63 and a first collecting tank 61 and a second collecting tank 62 arranged in parallel. The inlet of the switching valve 63 is connected to the bottom outlet of the cyclone separator 5, and the first outlet and the second outlet of the switching valve 63 are respectively connected to the inlets of the first collecting tank 61 and the second collecting tank 62.

[0033] Working principle: According to Figures 1-5As shown, the carrier gas enters the atomizing mechanism 3 from the carrier gas storage tank 21 through the carrier gas inlet 31, forming a supersonic jet in the carrier gas nozzle 32. The catalyst enters the atomizing mixing chamber 34 from the catalyst storage tank 22 through the catalyst inlet 33, where it is forcefully sheared and torn apart by the high-speed carrier gas, forming extremely small droplets. These droplets are then uniformly mixed with the carrier gas in the straight pipe mixing section 341, and ejected at high speed from the atomizing gas outlet 35 through the narrowing acceleration section 342. The heating jacket 36 heats the mixed fluid in the atomizing mixing chamber 34, improving its properties. High atomization efficiency, catalyst atomization complete; mixed atomized gas enters the outer ring pipe 42 from the atomized gas outlet 35 via the atomized gas inlet 421 of the distribution mechanism 4, carbon source enters the central pipe 41 from the carbon source storage tank 23 via the carbon source inlet 411, and the two enter the reactor 1 through the carbon source channel 412 and the atomized gas channel 422, making full contact in the buffer section 11, carbon nanotubes begin to grow in the growth section 12, and finally enter the cyclone separator 5 through the settling section 13 under the action of gravity and the carrier gas. The growth of carbon nanotubes is completed; switching valve 63 opens the channel to the first collection tank 61, and the carbon nanotube product is discharged from the bottom outlet of the cyclone separator 5 into the first collection tank 61 until loading is completed. Switching valve 63 closes the channel to the first collection tank 61 and opens the channel to the second collection tank 62. The carbon nanotube product continues to be collected by the second collection tank 62. The first collection tank 61 is unloaded, and the carbon nanotubes in it are sent to the downstream process. The recycling mechanism 6 is then installed. After the second collection tank 62 is loaded, the switching and unloading steps are repeated, and the collection of carbon nanotubes is completed. The high-temperature waste gas generated by reactor 1 enters the heat exchanger 8 through the waste gas inlet 81 of the heat exchanger 8 from the top outlet of the cyclone separator 5. The heat medium in the heating jacket 36 enters the heat exchanger 8 through the heat medium inlet 83. The two exchange heat. The heated heat medium flows back to the heating jacket 36 from the heat medium outlet 84. The cooled waste gas is discharged from the waste gas outlet 82 into the waste gas collection box 7. The waste heat recovery of the waste gas is completed.

[0034] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A high-pressure jet atomization device for carbon nanotube processing, comprising a reactor (1), a carrier gas storage tank (21), a catalyst storage tank (22), a carbon source storage tank (23), an atomization mechanism (3), a distribution mechanism (4), a cyclone separator (5), a material collection mechanism (6), and a waste gas collection box (7). The outlets of the carrier gas storage tank (21) and the catalyst storage tank (22) are respectively connected to the inlet of the atomization mechanism (3). The outlets of the carbon source storage tank (23) and the atomization mechanism (3) are respectively connected to the inlet of the distribution mechanism (4). The distribution mechanism (4) is fixedly installed on the top of the reactor (1). The outlet of the reactor (1) is connected to the inlet of the cyclone separator (5). The bottom outlet of the cyclone separator (5) is connected to the inlet of the material collection mechanism (6). The top outlet of the cyclone separator (5) is connected to the inlet of the waste gas collection box (7).

2. The high-pressure jet atomization device for carbon nanotube processing according to claim 1, characterized in that, The atomizing mechanism (3) includes a carrier gas inlet (31), a carrier gas nozzle (32), an atomizing mixing chamber (34), and an atomizing gas outlet (35) connected in sequence. The atomizing mechanism (3) also includes a catalyst inlet (33) and a heating jacket (36). The carrier gas nozzle (32) is a Laval nozzle, and the carrier gas nozzle (32) includes a converging section (321), a throat (322), and an expanding section (323) connected in sequence. The atomizing mixing chamber (34) includes a straight pipe mixing section (341) and a narrowing section connected in sequence. The acceleration section (342) has the catalyst inlet (33) fixedly installed on the side wall at the junction of the expansion section (323) and the straight pipe mixing section (341). The heating jacket (36) is fixedly sleeved outside the straight pipe mixing section (341) and the diameter reduction acceleration section (342). The outlet of the carrier gas storage tank (21) is connected to the carrier gas inlet (31). The outlet of the catalyst storage tank (22) is connected to the catalyst inlet (33). The atomizing gas outlet (35) is connected to the inlet of the distribution mechanism (4).

3. The high-pressure jet atomization device for carbon nanotube processing according to claim 2, characterized in that, It also includes a heat exchanger (8), which is a partitioned heat exchanger. The heat exchanger (8) includes an exhaust gas inlet (81), an exhaust gas outlet (82), a heat medium inlet (83), and a heat medium outlet (84). The heating jacket (36) includes a heat exchange inlet (361) and a heat exchange outlet (362). The exhaust gas inlet (81) is connected to the top outlet of the cyclone separator (5). The exhaust gas outlet (82) is connected to the inlet of the exhaust gas collection box (7). The heat medium inlet (83) is connected to the heat exchange outlet (362). The heat medium outlet (84) is connected to the heat exchange inlet (361).

4. The high-pressure jet atomization device for carbon nanotube processing according to claim 1, characterized in that, The distribution mechanism (4) is a sleeve-type distributor (40), which includes a central tube (41) and an outer ring tube (42) coaxially sleeved. The outer ring tube (42) is fixedly installed on the top of the reactor (1), and the central tube (41) is fixedly installed inside the outer ring tube (42). A carbon source inlet (411) is opened at the top of the central tube (41), and an atomizing gas inlet (421) is fixedly installed on the side wall of the outer ring tube (42). The outlet of the carbon source storage tank (23) is connected to the carbon source inlet (411), and the outlet of the atomizing mechanism (3) is connected to the atomizing gas inlet (421).

5. The high-pressure jet atomization device for carbon nanotube processing according to claim 4, characterized in that, The inner cavity of the central tube (41) forms a carbon source channel (412), and the inner cavity of the outer ring tube (42) forms an atomizing gas channel (422). The atomizing gas channel (422) is a tapered flow channel that gradually narrows from top to bottom.

6. The high-pressure jet atomization device for carbon nanotube processing according to claim 4, characterized in that, At least one of the outer wall surface of the central tube (41) and the inner wall surface of the outer ring tube (42) is fixedly provided with a flow guiding ridge (43), and the flow guiding ridge (43) is a spiral ridge.

7. The high-pressure jet atomization device for carbon nanotube processing according to claim 4, characterized in that, The reactor (1) includes a buffer section (11), a growth section (12) and a settling section (13) connected in sequence. The buffer section (11) is a cone that gradually widens downward from the bottom of the outer ring pipe (42).

8. The high-pressure jet atomization device for carbon nanotube processing according to claim 7, characterized in that, A shoulder (14) is formed at the connection between the buffer section (11) and the growth section (12). A plurality of protective gas nozzles (15) are fixed on the shoulder (14) and are evenly distributed in the circumferential direction. The spray direction of the protective gas nozzles (15) is downward.

9. A high-pressure jet atomization device for carbon nanotube processing according to claim 7, characterized in that, An observation window (16) is provided on the side wall of the growth segment (12).

10. The high-pressure jet atomization device for carbon nanotube processing according to claim 1, characterized in that, The receiving mechanism (6) includes a switching valve (63) and a first collection tank (61) and a second collection tank (62) arranged in parallel. The inlet of the switching valve (63) is connected to the bottom outlet of the cyclone separator (5), and the first outlet and the second outlet of the switching valve (63) are respectively connected to the inlets of the first collection tank (61) and the second collection tank (62).

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