Automatic production device for carbon nanotubes
By designing an automatic production device for carbon nanotubes, the thermal energy of exhaust gas is recovered and the catalyst is filtered, the thermal energy loss and pollution caused by exhaust gas entrainment is solved, the material utilization rate and reaction efficiency are improved, and energy conservation and emission reduction are achieved.
Patent Information
- Application Number
- CN202421660328.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-12
AI Technical Summary
During the carbon nanotube production process, the catalyst in the exhaust gas is entrained out of the reactor, resulting in thermal energy loss, pollution and reaction efficiency reduction, and low material utilization.
An automatic production device for carbon nanotubes is designed, including a reactor, exhaust pipe, thermal energy recovery part, filter part and feed pipe. The thermal energy is recovered through the exhaust pipe and the catalyst is filtered. The recovered thermal energy is used to preheat the material, and the filtered catalyst is returned to the reactor for reuse.
Effectively recycle and utilize heat energy, improve material utilization and reaction efficiency, and achieve energy-saving and emission reduction effects.
Smart Images
Figure CN223087603U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nanomaterial production, and more specifically, it relates to an automatic production device for carbon nanotubes. Background Art
[0002] Carbon nanotubes, also known as buckytubes, are one-dimensional quantum materials with a special structure (the radial size is in the nanometer order of magnitude, the axial size is in the micrometer order of magnitude, and both ends of the tube are basically sealed). As one-dimensional nanomaterials, carbon nanotubes are light in weight, have a perfect hexagonal structure connection, and have many extraordinary mechanical, electrical, and chemical properties.
[0003] During the production process of carbon nanotubes, under the dual action of stirring and air flow in the reactor, some catalysts will be suspended in the air flow, so it is easy to be entrained out of the reactor after the tail gas is sent out. If the tail gas is directly discharged, not only will the heat energy in the tail gas be lost, but also the catalyst entrained in the tail gas will be directly discharged, which will not only cause pollution, but also reduce the reaction efficiency, affecting the material utilization rate and reaction effect. Summary of the Utility Model
[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an automatic production device for carbon nanotubes, which can effectively recover and utilize heat energy, improve the material utilization rate and reaction effect, and has the effect of energy conservation and emission reduction.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] An automatic production device for carbon nanotubes, comprising:
[0007] A reactor; the reactor includes a reaction inner tank and an outer shell; the reaction inner tank is located inside the outer shell and forms a heating chamber between the reaction inner tank and the outer shell; a heating element for heating the reaction inner tank is installed in the heating chamber;
[0008] A tail gas pipe connected to the reactor at one end; the other end of the tail gas pipe is connected with a heat energy recovery component for recovering heat energy and a filtering component for filtering tail gas; the heat energy recovery component is connected with a heat energy output pipe for outputting heat energy; a cleaning component for cleaning the filtered substances is arranged in the filtering component, and a return pipe for transporting the cleaned substances into the reaction inner tank is connected;
[0009] And a feed pipe connected to the reactor;
[0010] Wherein, the heat energy output pipe is wound around the outer wall of the feed pipe along the feeding direction of the feed pipe to preheat the material.
[0011] In some embodiments, the heating element includes a heating pipe coiled around the outer wall of the reaction inner tank and a heating medium flowing in the heating pipe; an input end of the heating pipe is connected to a heating medium delivery pipe; the heat energy output pipe is connected to a heat energy shunt pipe which is coiled around the heating medium delivery pipe to reduce heat energy loss during the delivery of the heating medium delivery pipe.
[0012] In some embodiments, the delivery direction of the heating medium in the heating pipe is arranged opposite to the discharging direction of the reactor.
[0013] In some embodiments, the heating element includes a medium heater connected to the heating medium delivery pipe; the medium heater is used to heat the heating medium; an outlet of the heating pipe is connected to a circulation pipe to recycle the heating medium back into the medium heater through the circulation pipe.
[0014] In some embodiments, the circulation pipe is wound around the outer wall of the feed pipe along the feeding direction of the feed pipe to preheat the material.
[0015] In some embodiments, the heat energy recovery element includes a heat exchanger; a heat energy output port of the heat exchanger is connected to the heat energy output pipe.
[0016] In some embodiments, the filtering element includes a filtering box and a filtering cylinder arranged in the filtering box; a material recovery port is formed at the bottom of the filtering box; one end of the return pipe is connected to the material recovery port and the other end is connected to the reaction inner tank.
[0017] In some embodiments, the cleaning element includes a cleaning ring sleeved outside the filtering cylinder and a driving element for driving the cleaning ring to move along the axial direction of the filtering cylinder.
[0018] In some embodiments, the driving element includes a linear driving motor connected to the cleaning ring.
[0019] Compared with the prior art, one or more of the above embodiments may have the following advantages or beneficial effects:
[0020] The present application provides an automatic production device for carbon nanotubes. During production, a heating element is used to heat the reaction inner tank to raise its temperature to the required reaction temperature for automatic production. The tail gas generated during the reaction process is sent out through the tail gas pipe. After the heat energy on the tail gas is recovered by the heat energy recovery component, it enters the filtering component to filter the substances carried by the tail gas, and then the tail gas is filtered and sent out, protecting the environment and effectively utilizing heat energy and saving energy consumption. Among them, the filtered substances are cleaned by the cleaning component and then sent back into the reactor through the return pipe for re-reaction, improving the material utilization rate. The heat energy recovered by the heat energy recovery component is sent out through the heat energy output pipe to form hot water supply for the hot water tower, improving the heat energy utilization rate. When the circulation pipe in the heating element returns to the heater, it can preheat the materials on the feed pipe, improving the reaction effect of the materials in the reactor. Through the above solution, the automatic production device provided by the embodiment of the present application can effectively recycle and utilize heat energy, improve the material utilization rate and reaction effect, and has the effect of energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the automatic production device for carbon nanotubes in the embodiment of the present utility model;
[0022] Figure 2 In the present utility model Figure 1 An enlarged schematic diagram of part A.
[0023] In the figure: 1. Reactor; 11. Reaction inner tank; 12. Outer shell; 13. Heating chamber; 2. Heating element; 21. Heating pipe; 22. Heater; 23. Heating medium delivery pipe; 24. Circulation pipe; 3. Tail gas pipe; 4. Heat energy recovery component; 5. Filtering component; 51. Filtering box; 511. Substance recovery port; 52. Filtering cylinder; 521. Rotating handle; 6. Heat energy output pipe; 7. Return pipe; 71. Delivery gas source; 72. Control valve; 8. Cleaning component; 81. Cleaning ring; 82. Driving component; 9. Feed pipe; 10. Air inlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The following further describes the present disclosure in conjunction with the embodiments shown in the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0025] The embodiment of the present utility model discloses an automatic production device for carbon nanotubes, as Figure 1As shown, it includes a reactor 1, a tail gas pipe 3, a heat energy recovery component 4, a filter component 5, and a feed pipe 9; the feed pipe 9 is connected to the feed end of the reactor 1, one end of the tail gas pipe 3 is connected to the gas outlet end of the reactor 1, and the other end is sequentially connected to the heat energy recovery component 4 and the filter component 5, so as to recover the heat energy in the tail gas through the heat energy recovery component and filter out the substances carried by the tail gas by using the filter component 5. Among them, a cleaning component 8 for cleaning the filtered substances is provided in the filter component 5, and a return pipe 7 for transporting the filtered substances into the reactor 1 is connected thereto, so as to send the substances in the tail gas back into the reactor 1 for re-reaction after cleaning; the heat energy recovery component 4 is connected to a heat energy output pipe 6 for outputting heat energy, so as to transport the recovered heat energy to the required position through the heat energy output pipe 6.
[0026] Furthermore, the reactor 1 includes a reaction inner tank 11 and an outer shell 12; the reaction inner tank 11 is located inside the outer shell 12, and a heating chamber 13 is formed between the reaction inner tank 11 and the outer shell 12. An intake pipe 10 is connected to one side of the feed end of the reaction inner tank 11 for transporting reaction gas; a heating component 2 for heating the reaction inner tank 11 is installed in the heating chamber 13. By providing heat energy through the heating component 2, the temperature inside the reaction inner tank 11 is raised to the required reaction temperature. Among them, a heat insulation layer is added to the inner wall of the heating chamber 13 to reduce the loss of the temperature inside the heating chamber 13 to the outside and ensure the heat energy utilization rate.
[0027] In some embodiments, as Figure 1 and Figure 2 shown, the filter component 5 includes a filter box 51 and a filter cylinder 52 provided in the filter box 51; in this embodiment, a material recovery port 511 is formed at the center of the bottom of the filter box 51 to facilitate the concentration of the filtered substances; the filter cylinder 52 is installed in the middle of the filter box 51 to filter the substances and let them fall into the material recovery port 511; one end of the return pipe 7 is connected to the material recovery port 511, and the other end is connected to the reaction inner tank 11 to facilitate the delivery of the recovered materials to the reaction inner tank 11 for use. Among them, a conveying gas source 71 for transporting substances is connected to the return pipe 7 to provide power for the material transportation, facilitate the feeding of the recovered substances into the reactor 1 for re-reaction, and improve the material utilization rate.
[0028] Furthermore, as Figure 1 and Figure 2 shown, the cleaning component 8 includes a cleaning ring 81 sleeved outside the filter cylinder 52 and a driving component 82 for driving the cleaning ring 81 to move along the axis direction of the filter cylinder 52; in this embodiment, the driving component 82 includes an electric linear slide table connected to the cleaning ring 81, and the extending direction of the electric linear slide table is parallel to the axis direction of the filter cylinder 52 to drive the cleaning ring 81 to reciprocate along the axis of the filter cylinder 52, so as to clean the materials filtered out on the outer wall of the filter cylinder 52 to the material recovery port 511.
[0029] Among them, the filter cartridge 52 is rotatably arranged on the filter box 51. A rotating handle 521 is installed on the top of the filter box 51. One end of the rotating handle 521 is fixedly connected to the filter cartridge 52 to drive the filter cartridge 52 to rotate through the rotating handle 521. When the filtration efficiency decreases, the filter cartridge 52 can be rotated to switch to another side to filter the tail gas. At the same time, the cleaning ring 81 is enabled to clean the filter cartridge 52 to ensure the filtration efficiency, and the filter cartridge 52 can be cleaned without being replaced, improving the usability. Meanwhile, an exhaust port is opened at the top of the filter box 51, and an activated carbon substance is provided at the exhaust port to further filter the tail gas and improve the environmental protection effect.
[0030] In some embodiments, the heating element 2 includes a heating pipe 21 coiled around the outer wall of the reaction inner tank 11 and a heater 22. The output end of the heater 22 is connected to the input end of the heating pipe 21 through a heating medium delivery pipe 23, and the input end is connected to the output end of the heating pipe 21 through a circulation pipe 24. The circulation pipe 24 is wound around the outer wall of the feed pipe 9 to preheat the raw materials, so that the raw materials have a certain temperature when entering the reactor 1, thereby facilitating the rapid reaction of the raw materials, improving the reaction efficiency and reaction effect of the materials.
[0031] Among them, the heat energy output pipe 6 is spirally coiled around the heating medium delivery pipe 23 to use the heat energy of the heat energy output pipe 6 to keep the heating medium output pipe warm and reduce the heat energy loss during the transportation of the heating medium delivery pipe 23.
[0032] Furthermore, the heating medium delivery direction of the heating pipe 21 is set opposite to the discharging direction of the reactor 1, so that the heating starts from the tail of the reactor 1 during heating. After using the relatively high heat energy just input by the heating pipe 21 to heat the tail, the head of the reactor 1 is gradually heated, so that the heat energy received by the materials in the reactor 1 gradually increases during the process of transferring from the head to the tail until balance is maintained, improving the reaction effect of the materials.
[0033] In this embodiment, the heating medium can be any one of hot water, hot oil or steam.
[0034] In some embodiments, the heat energy recovery component 4 includes a heat exchanger. The heat energy output port of the heat exchanger is connected to the heat energy output pipe 6 to facilitate the recovery and utilization of heat energy and save energy consumption.
[0035] The embodiment of the present application discloses an automatic production device for carbon nanotubes. During production, the reaction inner tank 11 is heated by the heating element 2 to raise its temperature to the required reaction temperature for automatic production. The tail gas generated during the reaction process is sent out through the tail gas pipe 3. After the heat energy on the tail gas is recovered by the heat energy recovery component 4, it enters the filtering component 5 to filter the substances carried by the tail gas, and then the tail gas is filtered and sent out, protecting the environment and effectively utilizing the heat energy, saving energy consumption. Among them, the filtered substances are cleaned by the cleaning component 8 and then sent back into the reactor 1 through the return pipe 7 for re-reaction, improving the material utilization rate. The heat energy recovered by the heat energy recovery component 4 is sent out through the heat energy output pipe 6 to form hot water supply for the hot water tower, improving the heat energy utilization rate. When the circulating pipe 24 in the heating element 2 returns to the heater 22, it can preheat the materials on the feed pipe 9, improving the reaction effect of the materials in the reactor 1. Through the above solution, the automatic production device provided by the embodiment of the present application can effectively recover and utilize the heat energy, improve the material utilization rate and the reaction effect, and has the effect of energy conservation and emission reduction.
[0036] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. An automatic production device for carbon nanotubes, characterized in that, Comprising: A reactor; the reactor includes a reaction inner tank and an outer shell; the reaction inner tank is located inside the outer shell, and a heating cavity is formed between the reaction inner tank and the outer shell; a heating element for heating the reaction inner tank is installed in the heating cavity. An exhaust pipe with one end connected to the reactor. And a heat energy recovery element and a filter element connected in sequence to the other end of the exhaust pipe; the heat energy recovery element is used for recovering heat energy and is connected with a heat energy output pipe; the filter element is used for filtering substances in the tail gas and is connected with a return pipe for conveying the filtered substances into the reaction inner tank.
2. The automatic production device of carbon nanotubes according to claim 1, characterized in that, A feed pipe for inputting raw materials is provided on the reactor; the heating element includes a heating pipe coiled around the outer wall of the reaction inner tank and a heater; the output end of the heater is connected to the input end of the heating pipe through a heating medium conveying pipe, and the input end is connected to the output end of the heating pipe through a circulation pipe; the circulation pipe is wound around the outer wall of the feed pipe to preheat the raw materials.
3. An automatic production device for carbon nanotubes according to claim 2, characterized in that, The heating medium conveying direction of the heating pipe is arranged opposite to the reactor discharging direction.
4. The automatic production device of carbon nanotubes according to claim 2, wherein, The heat energy output pipe is spirally coiled in a snake shape on the heating medium conveying pipe.
5. The automatic production device of a carbon nanotube according to claim 1, characterized in that, The filter element includes a filter box and a filter cylinder rotatably arranged in the filter box; a material recovery port is formed at the bottom of the filter box; one end of the return pipe is connected to the material recovery port, and the other end is connected to the reaction inner tank, and a conveying gas source for conveying substances is connected to the return pipe.
6. The automatic production device of carbon nanotubes according to claim 5, characterized in that A rotating handle is installed at the top of the filter box; one end of the rotating handle is fixedly connected to the filter cylinder to drive the filter cylinder to rotate by rotating the handle.
7. The automatic production device of carbon nanotubes according to claim 5, characterized in that, A cleaning element for cleaning the filtered substances is provided in the filter element, and the cleaning element includes a cleaning ring sleeved outside the filter cylinder and a driving element for driving the cleaning ring to move along the axis direction of the filter cylinder.
8. An automatic production device for carbon nanotubes according to claim 7, characterized in that, The driving element includes an electric linear slide table connected to the cleaning ring, and the extending direction of the electric linear slide table is parallel to the axis direction of the filter cylinder.