Cracking device
By introducing an electrostatic contactor into the pyrolysis unit and electrically connecting it to an electrostatic generator, a single-polarity electrostatic charge is provided, which solves the problem of acetylene black branch chain agglomeration and achieves good dispersion and performance of carbon black.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAOZUO CITY HEXING CHEMICAL INDUSTRY CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-01
AI Technical Summary
In the production process of acetylene black, due to the high pyrolysis temperature and rapid reaction, it is difficult to control the length and development of the branches, which leads to the easy agglomeration of the branches, affecting the dispersion and performance of the carbon black.
An electrostatic contactor is introduced into the pyrolysis unit and electrically connected to an electrostatic generator to provide a single polarity of static electricity, so that the generated carbon black carries the same charge. The repulsion effect of the same charge is used to prevent the branches from agglomerating and form a suitable branch length.
By using electrostatic contactors, the agglomeration of carbon black branches is reduced, ensuring the dispersion and performance of carbon black.
Smart Images
Figure CN224186098U_ABST
Abstract
Description
pyrolysis unit Technical Field
[0001] This application relates to the field of acetylene carbon black technology, and in particular to a pyrolysis device. Background Technology
[0002] Currently, carbon black is an indispensable industrial product. It can be used in rubber and other materials to increase wear resistance or strength, and it can also be applied in conductive rubber and plastics, batteries, and other fields, playing a role in constructing conductive networks. The main production methods for carbon black include the oil furnace method and the acetylene method. During the production process, it is necessary to control indicators such as specific surface area and oil absorption value. The oil absorption value reflects the branched structure of the carbon black; the higher the oil absorption value, the more developed the branched structure. In the reactor, hydrocarbons crack, initially generating primary particles of approximately 20-100 nm. These primary particles collide and fuse together, growing into grape-like clusters of branched aggregates. Due to the high cracking temperature and rapid reaction of acetylene carbon black, the length and development of the branches are difficult to control. Therefore, longer and more developed branches are more prone to agglomeration under van der Waals forces, thus affecting the dispersion and performance of the carbon black. Summary of the Invention
[0003] The purpose of this application is to provide a pyrolysis device that, to a certain extent, solves the technical problem in the prior art where, during the production of acetylene black using a pyrolysis device, the high pyrolysis temperature and rapid reaction of acetylene black make it difficult to control the length and development of the branches. As a result, longer and more developed branches are more likely to agglomerate under the action of van der Waals forces, and if they cannot be dispersed in subsequent applications, it will affect the dispersion and performance of the carbon black.
[0004] This application provides a pyrolysis apparatus, including: a pyrolysis furnace, an electrostatic contactor, and an electrostatic generator; wherein, the electrostatic generator is disposed outside the pyrolysis furnace, the electrostatic contactor is disposed inside the pyrolysis furnace, and the electrostatic contactor is electrically connected to the electrostatic generator; a reaction zone is formed inside the pyrolysis furnace, and the electrostatic output terminal of the electrostatic contactor is located inside the pyrolysis furnace and is used to provide single-polarity static electricity to the pyrolysis furnace.
[0005] In the above technical solution, the electrostatic contactor and the electrostatic generator are further electrically connected by a wire.
[0006] In any of the above technical solutions, the number of electrostatic contactors is multiple, and they are arranged sequentially at intervals along the outer periphery of the pyrolysis furnace.
[0007] In any of the above technical solutions, the number of electrostatic contactors is multiple, and they are arranged sequentially at intervals along the height direction of the pyrolysis furnace.
[0008] In any of the above technical solutions, further, along the height direction of the pyrolysis furnace and from top to bottom, the interior of the pyrolysis furnace is formed with a feeding zone, a reaction zone, a cooling zone and a discharge zone arranged in sequence.
[0009] In any of the above technical solutions, the pyrolysis furnace is further provided with a first mounting through hole, the electrostatic contactor is mounted in the first mounting through hole, and the input end of the electrostatic contactor is located outside the pyrolysis furnace, while the electrostatic output end of the electrostatic contactor is located inside the pyrolysis furnace.
[0010] In any of the above technical solutions, the pyrolysis device further includes a high-temperature resistant sealing ring, and the high-temperature resistant sealing ring is compressed between the electrostatic contactor and the wall of the mounting through hole.
[0011] In any of the above technical solutions, the pyrolysis device further includes a support base, the electrostatic contactor is fixed to the support base, and the support base is fixed to the outer wall of the pyrolysis furnace.
[0012] In any of the above technical solutions, the support base further includes a mounting groove and a second mounting through hole communicating with the mounting groove. The electrostatic contactor is installed in the mounting groove, and the electrostatic output terminal of the electrostatic contactor extends into the pyrolysis furnace sequentially through the second mounting through hole and the first mounting through hole.
[0013] In any of the above technical solutions, the pyrolysis device further includes a pressure plate, which is detachably installed at the opening of the mounting groove, and the pressure plate forms a third mounting through hole, through which the input end of the electrostatic contactor extends to the outside of the mounting groove.
[0014] In any of the above technical solutions, the support base is further detachably connected to the outer wall of the pyrolysis furnace by bolts.
[0015] Compared with the prior art, the beneficial effects of this application are as follows:
[0016] This application provides a novel pyrolysis device that introduces an electrostatic contactor into the existing acetylene black pyrolysis furnace. The electrostatic contactor is electrically connected to an external electrostatic generator, which provides a single polarity of static electricity. Under the action of the external electrostatic generator, the electrostatic contactor always carries the same type of static electricity. In this way, after the carbon black is generated, it will come into contact with the electrostatic contactor and thus carry the same charge. By utilizing the mutual repulsion of like charges, the carbon black is prevented from forming long and overly developed branches, reducing the agglomeration between the micro-branches of the carbon black, forming a suitable branch length, and ensuring the performance of the carbon black. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 is a schematic diagram of the pyrolysis device provided in an embodiment of this application.
[0019] Figure label:
[0020] 1-Cracking furnace, 11-Feeding zone, 12-Reaction zone, 13-Cooling zone, 14-Discharge zone, 2-Electrostatic contactor, 3-Electrostatic generator, 4-Wire. Detailed Implementation
[0021] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.
[0022] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.
[0023] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] The pyrolysis apparatus according to some embodiments of this application is described below with reference to FIG1.
[0027] Referring to Figure 1, an embodiment of this application provides a pyrolysis apparatus, including: a pyrolysis furnace 1, an electrostatic contactor 2, and an electrostatic generator 3; wherein, the electrostatic generator 3 is disposed outside the pyrolysis furnace 1, the electrostatic contactor 2 is disposed inside the pyrolysis furnace 1, and the electrostatic contactor 2 is electrically connected to the electrostatic generator 3; a reaction zone 12 is formed inside the pyrolysis furnace 1, and the electrostatic output terminal of the electrostatic contactor 2 is located inside the pyrolysis furnace 1 and is used to provide single-polarity static electricity to the pyrolysis furnace 1.
[0028] As can be seen from the structure described above, this application provides a novel pyrolysis device. An electrostatic contactor 2 is introduced into the existing acetylene black pyrolysis furnace 1. The electrostatic contactor 2 is electrically connected to an external electrostatic generator 3. The electrostatic generator 3 can provide static electricity of a single polarity. Under the action of the external electrostatic generator 3, the electrostatic contactor 2 always carries the same type of static electricity. In this way, after the carbon black is generated, it will come into contact with the electrostatic contactor 2 and thus carry the same charge. By utilizing the mutual repulsion of like charges, the carbon black is prevented from forming long and overdeveloped branches, reducing the agglomeration between the micro-branches of the carbon black, forming a suitable branch length, and ensuring the performance of the carbon black.
[0029] In this embodiment, preferably, as shown in FIG1, the electrostatic contactor 2 and the electrostatic generator 3 are electrically connected by a wire 4.
[0030] As can be seen from the structure described above, the wire 4 serves to electrically connect the electrostatic contactor 2 and the electrostatic generator 3 together. Moreover, the electrostatic generator 3 can be placed in a suitable position according to actual needs, and with the wire 4 of appropriate length, the arrangement of the entire pyrolysis device is more flexible.
[0031] In this embodiment, preferably as shown in FIG1, there are multiple electrostatic contactors 2, which are arranged sequentially at intervals along the outer periphery of the pyrolysis furnace 1.
[0032] As can be seen from the structure described above, multiple electrostatic contactors 2 are arranged sequentially at intervals along the outer periphery of the pyrolysis furnace 1, thereby providing a uniform charge of the same kind.
[0033] Furthermore, preferably, the multiple electrostatic contactors 2 can be arranged sequentially and evenly at intervals along the outer periphery of the pyrolysis furnace 1, thereby ensuring the uniformity of electrostatic distribution. Of course, this is not the only option; the multiple electrostatic contactors 2 can also be non-uniformly distributed.
[0034] It should be noted that: it is not limited to the above-mentioned multiple electrostatic contactors 2, but also only one electrostatic contactor 2 can be set, depending on the actual needs.
[0035] In addition, it should be noted that the multiple electrostatic contactors 2 are not limited to being arranged sequentially at intervals along the outer periphery of the pyrolysis furnace 1. They can also be arranged sequentially at intervals along the height direction of the pyrolysis furnace 1, that is, the height direction of the reaction zone 12. Alternatively, multiple electrostatic contactors 2 can be arranged in an array perpendicular to both the outer periphery and the height direction along the height direction of the pyrolysis furnace 1. The specific choice depends on the actual needs.
[0036] In this embodiment, preferably, as shown in FIG1, along the height direction of the pyrolysis furnace 1 from top to bottom, the interior of the pyrolysis furnace 1 is formed with a feeding zone 11, a reaction zone 12, a cooling zone 13 and a discharge zone 14 arranged in sequence.
[0037] As can be seen from the structure described above, the feeding zone 11 is used for feeding materials, the reaction zone 12 is used for the reaction of materials, the cooling zone 13 is used for cooling the acetylene black produced after the reaction, and the discharge zone 14 is used for discharging the acetylene black from the pyrolysis furnace 1.
[0038] Furthermore, preferably, a feed pipe is provided at the top of the pyrolysis furnace 1, and the inside of the feed pipe is the feed zone 11.
[0039] More preferably, a discharge port is formed at the bottom of the pyrolysis furnace 1, and this discharge port is the discharge zone 14.
[0040] It should be noted that the structure of the pyrolysis furnace 1 is not limited to the above and can be designed according to actual needs.
[0041] In this embodiment, preferably, the pyrolysis furnace 1 has a first mounting through hole, the electrostatic contactor 2 is mounted in the first mounting through hole, and the input end of the electrostatic contactor 2 is located outside the pyrolysis furnace 1, while the electrostatic output end of the electrostatic contactor 2 is located inside the pyrolysis furnace 1 (not shown in the figure).
[0042] As can be seen from the structure described above, the first mounting through hole provides a mounting position for the electrostatic contactor 2, and allows the input end of the electrostatic contactor to be exposed outside the pyrolysis furnace 1, while the electrostatic output end of the electrostatic contactor 2 is located inside the pyrolysis furnace 1.
[0043] In this embodiment, preferably, the pyrolysis device further includes a high-temperature resistant sealing ring, which is compressed between the electrostatic contactor 2 and the wall of the mounting through hole (not shown in the figure).
[0044] As can be seen from the structure described above, the high-temperature resistant sealing ring serves to seal the pyrolysis furnace 1, preventing gas and material from overflowing, thus improving the safety and reliability of the acetylene black manufacturing process and ensuring the yield of acetylene black.
[0045] It should be noted that this high-temperature resistant sealing ring may not be required; the specific choice depends on actual needs.
[0046] In this embodiment, preferably, the pyrolysis device further includes a support base, the electrostatic contactor 2 is fixed to the support base, and the support base is fixed to the outer wall of the pyrolysis furnace 1 (not shown in the figure).
[0047] As can be seen from the structure described above, the support base serves to support the electrostatic contactor 2, making the electrostatic contactor 2 more stable and preventing it from easily falling off the furnace wall of the pyrolysis furnace 1.
[0048] It should be noted that a support base may not be required; instead, the electrostatic contactor 2 can simply be inserted into the furnace wall of the pyrolysis furnace 1. Preferably, to ensure the stability of the electrostatic contactor 2, a first mounting flange can be provided on the electrostatic contactor 2, and a second mounting flange can be provided on the outer furnace wall around the first mounting through hole. The first and second mounting flanges are detachably connected by bolts. Of course, this is just an example, and the specific design should be based on actual needs.
[0049] In this embodiment, preferably, the support base has a mounting groove and a second mounting through hole connected to the mounting groove. The electrostatic contactor 2 is installed in the mounting groove, and the electrostatic output terminal of the electrostatic contactor 2 extends into the cracking furnace 1 through the second mounting through hole and the first mounting through hole in sequence (not shown in the figure).
[0050] As can be seen from the structure described above, the electrostatic contactor 2 is installed in the mounting groove of the support base, which makes the electrostatic contactor 2 and the support base more stable. Furthermore, a second mounting through hole connected to the mounting groove is opened on the support base, which serves to introduce the electrostatic contactor into the pyrolysis furnace 1 and avoid interference.
[0051] In this embodiment, preferably, the pyrolysis device further includes a pressure plate, which is detachably mounted at the opening of the mounting groove, and the pressure plate has a third mounting through hole through which the input end of the electrostatic contactor 2 extends to the outside of the mounting groove (not shown in the figure).
[0052] As can be seen from the structure described above, the pressure plate serves to press and fix the electrostatic contactor 2, preventing it from falling out of the mounting slot, making the electrostatic contactor 2 more stable. It also serves to prevent dust and water, that is, to protect the electrostatic contactor 2. Moreover, the pressure plate and the mounting base are connected in a detachable manner, which facilitates the maintenance of the electrostatic contactor 2 in the future and makes the operation more convenient.
[0053] More preferably, the pressure plate and the mounting base are detachably connected by bolts or clips, but this is not the only option.
[0054] Of course, this pressure plate can be omitted, depending on the actual needs.
[0055] In this embodiment, preferably, the support base is detachably connected to the outer wall of the pyrolysis furnace 1 by bolts (not shown in the figure).
[0056] As can be seen from the structure described above, the support base is detachably connected to the outer wall of the pyrolysis furnace 1 by bolts, which facilitates later maintenance or replacement. Of course, it is not limited to this. The support base can also be connected to the pyrolysis furnace 1 by a non-detachable method, such as welding, depending on the actual needs.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A pyrolysis apparatus, characterized in that, include: The pyrolysis furnace, an electrostatic contactor, and an electrostatic generator are provided. The electrostatic generator is located outside the pyrolysis furnace, the electrostatic contactor is located inside the pyrolysis furnace, and the electrostatic contactor is electrically connected to the electrostatic generator. A reaction zone is formed inside the pyrolysis furnace, and the electrostatic output terminal of the electrostatic contactor is located inside the pyrolysis furnace and is used to provide a single polarity of static electricity to the pyrolysis furnace.
2. The pyrolysis apparatus according to claim 1, characterized in that, The electrostatic contactor and the electrostatic generator are electrically connected by a wire.
3. The pyrolysis apparatus according to claim 1, characterized in that, The number of electrostatic contactors is multiple, and they are arranged sequentially at intervals along the outer periphery of the pyrolysis furnace; and / or the number of electrostatic contactors is multiple, and they are arranged sequentially at intervals along the height direction of the pyrolysis furnace.
4. The pyrolysis apparatus according to claim 1, characterized in that, Along the height of the pyrolysis furnace and from top to bottom, the interior of the pyrolysis furnace is formed with a feeding zone, a reaction zone, a cooling zone, and a discharge zone arranged in sequence.
5. The pyrolysis apparatus according to any one of claims 1 to 4, characterized in that, The pyrolysis furnace has a first mounting through hole, the electrostatic contactor is mounted in the first mounting through hole, and the input end of the electrostatic contactor is located outside the pyrolysis furnace, while the electrostatic output end of the electrostatic contactor is located inside the pyrolysis furnace.
6. The pyrolysis apparatus according to claim 5, characterized in that, The pyrolysis device also includes a high-temperature resistant sealing ring, which is compressed between the electrostatic contactor and the wall of the mounting through hole.
7. The pyrolysis apparatus according to claim 5, characterized in that, The pyrolysis device also includes a support base, the electrostatic contactor is fixed to the support base, and the support base is fixed to the outer wall of the pyrolysis furnace.
8. The pyrolysis apparatus according to claim 7, characterized in that, The support base has a mounting groove and a second mounting through hole connected to the mounting groove. The electrostatic contactor is installed in the mounting groove, and the electrostatic output terminal of the electrostatic contactor extends into the pyrolysis furnace through the second mounting through hole and the first mounting through hole in sequence.
9. The pyrolysis apparatus according to claim 8, characterized in that, The pyrolysis device further includes a pressure plate, which is detachably mounted at the opening of the mounting groove, and the pressure plate has a third mounting through hole through which the input end of the electrostatic contactor extends to the outside of the mounting groove.
10. The pyrolysis apparatus according to claim 7, characterized in that, The support base is detachably connected to the outer wall of the pyrolysis furnace by bolts.