CN219058556U - Carbon nanotube production system - Google Patents
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- CN219058556U CN219058556U CN202320032461.1U CN202320032461U CN219058556U CN 219058556 U CN219058556 U CN 219058556U CN 202320032461 U CN202320032461 U CN 202320032461U CN 219058556 U CN219058556 U CN 219058556U
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 46
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 238000003763 carbonization Methods 0.000 claims abstract description 50
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 239000003054 catalyst Substances 0.000 claims abstract description 30
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 10
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 9
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 25
- 239000012043 crude product Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000005243 fluidization Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910020890 PHI 650 Inorganic materials 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002079 double walled nanotube Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002048 multi walled nanotube Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002109 single walled nanotube Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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Abstract
The utility model provides a carbon nano tube production system, which comprises a reaction system, a feeding and air inlet system, a safety guarantee system, a product collection system and a tail gas emission system, wherein the feeding and air inlet system, the safety guarantee system, the product collection system and the tail gas emission system are connected with the reaction system; the reaction system comprises a carbonization main reactor, wherein the carbonization main reactor is used for preparing the carbon nano tube; the feeding air inlet system comprises a first feeding air inlet device, a second feeding air inlet device and a catalyst feeding device which are connected with the carbonization main reactor, the first feeding air inlet device and the second feeding air inlet device are used for conveying preheated carbon sources and nitrogen to the carbonization main reactor, and the preheating temperatures of the first feeding air inlet device and the second feeding air inlet device are different. According to the utility model, the low-temperature carbon source nitrogen is fluidized firstly, and then mixed and fluidized with high Wen Tanyuan nitrogen, so that the conversion rate is greatly improved; the combustible gas alarm device and the tail gas emission system are arranged, so that safe production is guaranteed, and the tail gas is subjected to heat exchange cooling and then liquid separation and dust removal, so that the environment is protected.
Description
Technical Field
The utility model relates to the technical field of chemistry, in particular to a carbon nano tube production system.
Background
Carbon nanotubes have been found to have broad application prospects in many fields, particularly in high-tech fields, due to their very remarkable physicochemical properties, such as unique metal and semiconductor conductivity, extremely high mechanical strength, adsorption capacity, and relatively strong microwave absorption capacity. The carbon nanotube has a diameter of only one ten thousandth of that of the hair, but its conductivity is one ten thousand times that of copper, its strength is 100 times that of steel and its weight is only one sixth of that of steel. The carbon nano tube can be used for manufacturing a plurality of special materials such as super capacitors, very large scale integrated circuits, various composite materials, flat panel displays and the like, and can also be used for manufacturing very light and non-tool-inserted bulletproof clothes. If it is used as reinforcing agent and conducting agent, it can be used as catalyst carrier to raise the activity and selectivity of catalyst; the carbon nanotube has strong microwave absorption performance, so that the carbon nanotube can be used as an absorbent to prepare invisible materials, electromagnetic shielding materials or darkroom wave absorbing materials and the like.
The premise of widely applied carbon nano materials is development and maturity of low-cost batch technology, and a vapor phase chemical deposition method is mostly adopted in the aspect of carbon nano tube production at present. However, there is a problem of low conversion rate due to poor fluidization rate and environmental pollution due to poor exhaust gas treatment
Therefore, the carbon nano tube production system has high conversion rate and good tail gas treatment.
Disclosure of Invention
The utility model aims to solve the problems of carbon nanotube conversion rate and tail gas treatment, and provides a carbon nanotube production system, which is characterized in that low-temperature carbon source nitrogen is fluidized firstly, and then mixed and fluidized with high Wen Tanyuan nitrogen to be further mixed and fluidized, so that the conversion rate is greatly improved; the combustible gas alarm device and the tail gas emission system are arranged, so that the safety production is ensured, the tail gas is subjected to heat exchange and cooling and then liquid separation and dust removal, and the environmental safety is protected; the spray head with the hollow cylinder structure is arranged, so that the outlet of the spray head is prevented from being polluted by the catalyst, and the product precision is improved; and setting a product collecting system, wherein an electronic scale and a sampling valve are arranged on the middle carbon powder tank, checking and judging whether the produced crude product is qualified or not, transferring the intermediate carbon powder tank to a finished product tank after the crude product is checked to be qualified, and transferring unqualified carbon powder to the unqualified carbon powder tank.
The utility model provides a carbon nano tube production system, which comprises a reaction system, a feeding and air inlet system, a safety guarantee system, a product collection system and a tail gas emission system, wherein the feeding and air inlet system, the safety guarantee system, the product collection system and the tail gas emission system are connected with the reaction system;
the reaction system comprises a carbonization main reactor, wherein the carbonization main reactor is used for preparing the carbon nano tube;
the feeding air inlet system comprises a first feeding air inlet device, a second feeding air inlet device and a catalyst feeding device which are connected with the carbonization main reactor, wherein the first feeding air inlet device and the second feeding air inlet device both convey preheated carbon sources and nitrogen to the carbonization main reactor, and the preheating temperatures of the first feeding air inlet device and the second feeding air inlet device are different;
the safety guarantee system is a combustible gas alarm device;
the product collecting system comprises an intermediate carbon powder tank connected with the bottom of the carbonization main reactor, a finished product large tank connected with the intermediate carbon powder tank and a disqualified small carbon powder tank;
the tail gas discharge system comprises a separation device connected with the top of the carbonization main reactor and a tail gas discharge device connected with the separation device.
According to the carbon nano tube production system, as an optimal mode, the temperature of the carbon source nitrogen mixture output by the first feeding air inlet device is 560+/-50 ℃, and the temperature of the carbon source nitrogen mixture output by the second feeding air inlet device is 850+/-50 ℃.
In the carbon nanotube production system, as an optimal mode, the reaction system further comprises a reducer connected with the inlet of the carbonization main reactor, wherein the inlet of the reducer is connected with the outlet of the catalyst feeding device, and the other outlet of the catalyst feeding device is also connected with the carbonization main reactor;
the carbon source is ethylene or propylene.
The utility model relates to a carbon nano tube production system, which is characterized in that a feeding air inlet system also comprises a carbon source valve, a reducing medium valve, a nitrogen valve, a preheating system and a flow control system.
According to the carbon nano tube production system, as a preferable mode, the catalyst feeding device comprises a dosing funnel, a dosing tank and a dosing pipeline which are sequentially connected, wherein the dosing pipeline is connected with the carbonization main reactor and the reducer, and a heat preservation device is arranged outside the dosing pipeline.
According to the carbon nano tube production system, as an optimal mode, a carbonization main reactor, a reducer and a feeding air inlet system are all provided with heating systems, and at least two temperature control points and temperature measuring points on the inner wall of the reactor are arranged in the carbonization main reactor.
According to the carbon nano tube production system, as an optimal mode, the number of temperature control points is 16, the number of temperature measuring points on the inner wall of the reactor is 7, and the heating system is an armored thermocouple.
According to the carbon nano tube production system, as an optimal mode, an electronic scale and a sampling valve are arranged in the middle carbon powder tank, and a discharging slide valve is arranged between the middle carbon powder tank and the carbonization main reactor.
The utility model relates to a carbon nano tube production system, which is characterized in that a tail gas emission device comprises a heat exchanger, a cooler, a liquid separator and a bag-type dust remover which are sequentially connected with a separation device, wherein the separation device is a metal net.
According to the carbon nanotube production system, as an optimal mode, the carbonization main reactor comprises a carbonization main reactor body and a feeding nozzle arranged in the carbonization main reactor body, wherein the feeding nozzle comprises a nozzle body, a cavity arranged in the nozzle body and outlets arranged in the side wall of the cavity, the nozzle body is of a hollow cylinder structure connected with a feeding air inlet system, the outlets are communicated with the cavity, the outlets are axially distributed along the nozzle body, the outlets incline downwards, and the number of the outlets is at least 2.
The carbon nanotube production system is mainly used for preparing carbon nanotubes by thermally cracking propylene. The device comprises a feeding air inlet system, a reaction system, a safety guarantee system, a product collection system, an automatic control system, a device frame and other related auxiliary equipment. The feeding air inlet system consists of a carbon source valve, a reducing medium valve, a nitrogen valve, a preheating system and a flow control system. The reaction system comprises a reduction reactor, a carbon tube preparation reaction by propylene reaction and an auxiliary heating system thereof, and the safety assurance system comprises a combustible gas alarm device. The product collection system comprises a crude product collection (to-be-detected product) system and a qualified product collection system. The control system should employ automated integrated control and should have remote monitoring and in-situ control functions.
The catalyst is a multi-wall carbon nanotube catalyst, a single-wall carbon nanotube catalyst and a double-wall carbon nanotube catalyst.
The utility model has the following advantages:
(1) Two feeding air inlet devices with different temperatures are arranged, so that nitrogen and a carbon source are uniformly mixed at a low temperature (560+/-50 ℃) to be primarily fluidized, and then high Wen Tanyuan and nitrogen (850+/-50 ℃) are added to be further mixed and fluidized, thereby greatly improving the conversion rate;
(2) The combustible gas alarm device and the tail gas emission system are arranged, so that the safety production is ensured, the tail gas is subjected to heat exchange and cooling and then liquid separation and dust removal, and the environmental safety is protected;
(3) The spray head with the hollow cylinder structure is arranged, so that the outlet of the spray head is prevented from being polluted by the catalyst, and the product precision is improved;
(4) And setting a product collecting system, wherein an electronic scale and a sampling valve are arranged on the middle carbon powder tank, checking and judging whether the produced crude product is qualified or not, transferring the intermediate carbon powder tank to a finished product tank after the crude product is checked to be qualified, and transferring unqualified carbon powder to the unqualified carbon powder tank.
Drawings
FIG. 1 is a schematic diagram of a carbon nanotube production system;
fig. 2 is a schematic diagram of a feed nozzle of a carbon nanotube production system.
Reference numerals:
1. a reaction system; 11. carbonizing a main reactor; 111. carbonizing the main reactor body;
112. a feed nozzle; 1121. a spray head body; 1122. a cavity; 1123. an outlet;
12. a reducer; 2. a feed air intake system; 21. a first feed air intake; 22. a second feed air intake; 23. a catalyst feed means; 231. a dosing funnel; 232. a dosing tank; 233. a dosing line; 3. a combustible gas alarm device; 4. a product collection system; 41. an intermediate carbon powder tank; 42. a finished product large tank; 43. a small unqualified carbon powder tank; 5. an exhaust emission system; 51. a separation device; 52. an exhaust emission device; 521. a heat exchanger; 522. a cooler; 523. a knockout; 524. a bag-type dust collector.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1
As shown in fig. 1, a carbon nanotube production system comprises a reaction system 1, a feeding air inlet system 2, a safety guarantee system 3, a product collection system 4 and an exhaust emission system 5, wherein the feeding air inlet system 2, the safety guarantee system 3, the product collection system 4 and the exhaust emission system 5 are connected with the reaction system 1;
the reaction system 1 comprises a carbonization main reactor 11 and a reducer 12 connected with an inlet of the carbonization main reactor 11, wherein the carbonization main reactor 11 is used for preparing carbon nano tubes, the inlet of the reducer 12 is connected with an outlet of a catalyst feeding device 23, the other outlet of the catalyst feeding device 23 is also connected with the carbonization main reactor 11, and a carbon source is ethylene or propylene;
as shown in fig. 2, the carbonization main reactor 11 comprises a carbonization main reactor body 111 and a feed nozzle 112 arranged inside the carbonization main reactor body 111, the feed nozzle 112 comprises a nozzle body 1121, a cavity 1122 arranged in the nozzle body 1121 and outlets 1123 arranged in the side wall of the cavity 1122, the nozzle body 1121 is a hollow cylinder structure connected with the feed air intake system 2, the outlets 1123 are communicated with the cavity 1122, the outlets 1123 are distributed along the axial direction of the nozzle body 1121, the outlets 1123 are inclined downwards, and the number of the outlets 1123 is at least 2;
wherein the main reaction section of the carbon tube main reactor 11 is phi 650 x 12 x 6500mm;
the feed air intake system 2 comprises a first feed air intake device 21, a second feed air intake device 22 and a catalyst feed device 23 which are connected with the carbonization main reactor 11, wherein the first feed air intake device 21 and the second feed air intake device 22 both convey preheated carbon source and nitrogen to the carbonization main reactor 11, and the preheating temperatures of the first feed air intake device 21 and the second feed air intake device 22 are different; the temperature of the carbon source nitrogen mixture output by the first feeding air inlet device 21 is 560+/-50 ℃, and the temperature of the carbon source nitrogen mixture output by the second feeding air inlet device 22 is 850+/-50 ℃;
the carbonization main reactor 11, the reducer 12 and the feeding air inlet system 2 are all provided with heating systems, and at least two temperature control points and temperature measuring points on the inner wall of the reactor are arranged in the carbonization main reactor 11; the number of the temperature control points is 16, the number of the temperature measuring points on the inner wall of the reactor is 7, and the heating system is an armored thermocouple;
the feeding air inlet system 2 further comprises a carbon source valve, a reducing medium valve, a nitrogen valve, a preheating system and a flow control system;
the catalyst feeding device 23 comprises a dosing funnel 231, a dosing tank 232 and a dosing pipeline 233 which are sequentially connected, the dosing pipeline 233 is connected with the carbonization main reactor 11 and the reducer 12, and a heat preservation device is arranged outside the dosing pipeline 233;
the safety guarantee system 3 is a combustible gas alarm device;
the product collecting system 4 comprises an intermediate carbon powder tank 41 connected with the bottom of the carbonization main reactor 11, a finished product large tank 42 connected with the intermediate carbon powder tank 41 and a disqualified small carbon powder tank 43;
the exhaust gas discharge system 5 comprises a separation device 51 connected with the top of the carbonization main reactor 11 and an exhaust gas discharge device 52 connected with the separation device 51;
an electronic scale and a sampling valve are arranged in the middle carbon powder tank 41, and a discharging slide valve is arranged between the middle carbon powder tank 41 and the carbonization main reactor 11;
the tail gas emission device 52 comprises a heat exchanger 521, a cooler 522, a liquid separator 523 and a bag-type dust collector 524 which are sequentially connected with the separation device 51, and the separation device 51 is a metal net;
the apparatus includes a set of medium-sized devices that can be used to react propylene to form carbon nanotubes. The apparatus may be operated under continuous or batch conditions. The equipment device comprises a reaction system 1, a feeding and air inlet system 2, a safety guarantee system 3, a product collection system 4 and an automatic control system. The feeding air inlet system 2 consists of a carbon source valve, a reducing medium valve, a nitrogen valve, a preheating system and a flow control system. The reaction system 1 comprises a carbon tube reactor 11 for preparing propylene, a reduction reactor 12 and an auxiliary heating system thereof, and the safety assurance system comprises a combustible gas alarm device. The product collection system comprises a crude product collection (to-be-detected product) system and a qualified product collection system. The control system should employ automated integrated control and should have remote monitoring and in-situ control functions.
The using method of the system comprises the following steps:
catalyst is automatically added to the carbonization main reactor 11 from the catalyst tank 232. In the main reactor 11, propylene and nitrogen are preheated by a preheating furnace, then enter a feed inlet of the main reactor 11, and are fluidized by a nozzle 112 at the feed inlet to carry out reaction. And cooling, separating and dedusting the tail gas of the reaction, and then entering a tail gas discharge pipeline reserved 1 meter outside the frame, wherein a reaction product is the carbon nano tube, thereby completing the preparation of the carbon nano tube. After the reaction is finished, the prepared carbon nano tube is purged to the middle carbon powder tank 41 through the unloading slide valve, whether the carbon tube is qualified or not is judged according to the multiplying power of the generated carbon tube or sampling of a sampling port of the middle carbon powder tank 41, the qualified carbon tube enters the finished product large tank 42, and the unqualified carbon tube enters the unqualified small carbon powder tank 43.
The system separates the different gases into nitrogen, propylene, and hydrogen.
The nitrogen is used for fluidization, loosening, conveying, pulse and reaction gas distribution, the nitrogen is used for fluidization, loosening, conveying and pulse, the rotameter is used for metering and controlling, and the nitrogen is used for reaction gas distribution and is controlled by the mass flow controller.
Propylene and ethylene are used as raw materials for production and controlled by the same mass flow controller.
The hydrogen is controlled by a mass flow controller as a reducing gas.
The catalyst dosing system 23 comprises a dosing funnel 231, a dosing tank 232 and corresponding pipelines 233 and valves, the dosing mode is manual and automatic, after an operator puts the required catalyst into the dosing funnel 231, the operator clicks a feed button of the control system, and the valves and the purge gas are automatically opened and closed to automatically convey the catalyst into the reaction system 1. The automatic control circulation of adding agent that is suppressed of adding agent in-process, catalyst jar inner wall smoothness reduces the wall built-up phenomenon of adding agent in-process, has realized the quick, safe, the convenient adding agent of catalyst.
The reactor 1, the raw material feeding system 2 and the like are provided with a back heating system, and the heating power meets the reaction temperature of up to 850 ℃.
The closed section of the reactor 11 is provided with 16 temperature control points, 7 temperature measurement points on the inner wall of the reactor, and the raw material preheating furnace is also provided with corresponding temperature control points, so that the temperature regulation is convenient. The catalyst conveying pipeline is subjected to heat preservation, and the number of temperature control points is set according to the length of the conveying pipeline.
The temperature control of each heating system adopts an armored thermocouple.
The device is provided with a plurality of measuring and controlling instruments and systems for measuring and controlling the temperature, the flow, the pressure, the concentration of combustible gas and the like.
The control precision of the temperature reaches +/-1.0 ℃ and the pressure is controlled to +/-0.015 MPa; the gas flow control accuracy is + -1.5% F.S.
The outlet pipeline of the reactor 11 is provided with a tail gas treatment system 5 which comprises an air cooler, and the tail gas in the reaction process is condensed and then is discharged to a subsequent tail gas treatment system.
The produced crude product is required to be checked and judged whether the produced carbon tube is qualified or not, so an electronic scale and a sampling valve are arranged on the middle carbon powder tank 41 and are used for sampling the produced carbon nano tube. After the inspection is passed, the intermediate toner tank 41 is transferred to the final product tank 42, and the reject toner is transferred to the reject toner tank 43.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (9)
1. A carbon nanotube production system, characterized in that: comprises a reaction system (1), a feeding air inlet system (2), a safety guarantee system (3), a product collection system (4) and an exhaust emission system (5), wherein the feeding air inlet system (2), the safety guarantee system (3), the product collection system (4) and the exhaust emission system (5) are connected with the reaction system (1);
the reaction system (1) comprises a carbonization main reactor (11), wherein the carbonization main reactor (11) is used for preparing carbon nano tubes;
the feed air inlet system (2) comprises a first feed air inlet device (21), a second feed air inlet device (22) and a catalyst feed device (23) which are connected with the carbonization main reactor (11), wherein the first feed air inlet device (21) and the second feed air inlet device (22) both convey preheated carbon sources and nitrogen to the carbonization main reactor (11), and the preheating temperatures of the first feed air inlet device (21) and the second feed air inlet device (22) are different;
the safety guarantee system (3) is a combustible gas alarm device;
the product collecting system (4) comprises an intermediate carbon powder tank (41) connected with the bottom of the carbonization main reactor (11), a finished product large tank (42) connected with the intermediate carbon powder tank (41) and a disqualified small carbon powder tank (43);
the tail gas emission system (5) comprises a separation device (51) connected with the top of the carbonization main reactor (11) and a tail gas emission device (52) connected with the separation device (51).
2. The carbon nanotube production system of claim 1, wherein: the reaction system (1) further comprises a reducer (12) connected with the inlet of the carbonization main reactor (11), wherein the inlet of the reducer (12) is connected with the outlet of the catalyst feeding device (23), and the other outlet of the catalyst feeding device (23) is also connected with the carbonization main reactor (11);
the carbon source is ethylene or propylene.
3. The carbon nanotube production system of claim 1, wherein: the feeding air inlet system (2) further comprises a carbon source valve, a reducing medium valve, a nitrogen valve, a preheating system and a flow control system.
4. The carbon nanotube production system of claim 1, wherein: the catalyst feeding device (23) comprises a dosing funnel (231), a dosing tank (232) and a dosing pipeline (233) which are sequentially connected, the dosing pipeline (233) is connected with the carbonization main reactor (11) and the reducer (12), and a heat preservation device is arranged outside the dosing pipeline (233).
5. The carbon nanotube production system of claim 1, wherein: the carbonization main reactor (11), the reducer (12) and the feeding air inlet system (2) are all provided with heating systems, and at least two temperature control points and temperature measuring points on the inner wall of the reactor are arranged in the carbonization main reactor (11).
6. The carbon nanotube production system of claim 5, wherein: the number of the temperature control points is 16, the number of the temperature measuring points on the inner wall of the reactor is 7, and the heating system is an armored thermocouple.
7. The carbon nanotube production system of claim 1, wherein: an electronic scale and a sampling valve are arranged in the middle carbon powder tank (41), and a discharging slide valve is arranged between the middle carbon powder tank (41) and the carbonization main reactor (11).
8. The carbon nanotube production system of claim 1, wherein: the tail gas emission device (52) comprises a heat exchanger (521), a cooler (522), a liquid separator (523) and a bag-type dust collector (524) which are sequentially connected with the separation device (51), and the separation device (51) is a metal net.
9. The carbon nanotube production system of claim 1, wherein: the carbonization main reactor (11) comprises a carbonization main reactor body (111) and a feeding nozzle (112) arranged inside the carbonization main reactor body (111), wherein the feeding nozzle (112) comprises a nozzle body (1121), a cavity (1122) arranged in the nozzle body (1121) and an outlet (1123) arranged in the side wall of the cavity (1122), the nozzle body (1121) is of a hollow cylinder structure connected with the feeding air inlet system (2), the outlet (1123) is communicated with the cavity (1122), the outlet (1123) is axially distributed along the nozzle body (1121), the outlet (1123) is inclined downwards, and the number of the outlets (1123) is at least 2.
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| CN202320032461.1U CN219058556U (en) | 2023-01-06 | 2023-01-06 | Carbon nanotube production system |
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| CN202320032461.1U CN219058556U (en) | 2023-01-06 | 2023-01-06 | Carbon nanotube production system |
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Denomination of utility model: A carbon nanotube production system Granted publication date: 20230523 Pledgee: Urumqi Bank Co.,Ltd. Hami Branch Pledgor: Beijing Huiersanji Green Chem-Tech Co.,Ltd. Registration number: Y2024980011873 |