CN211645128U - Industrial continuous coaxial multi-cavity cracker - Google Patents
Industrial continuous coaxial multi-cavity cracker Download PDFInfo
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- CN211645128U CN211645128U CN201922452668.0U CN201922452668U CN211645128U CN 211645128 U CN211645128 U CN 211645128U CN 201922452668 U CN201922452668 U CN 201922452668U CN 211645128 U CN211645128 U CN 211645128U
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Abstract
The utility model relates to an industrial continuous coaxial multi-cavity cracker, which comprises an outer barrel and a rotatable inner barrel arranged in the outer barrel, wherein both ends of the inner barrel are provided with a feeding bin and a discharging bin, a plurality of cracking pipes and a solid heat carrier return pipe are fixedly connected between the feeding bin and the discharging bin, a spiral belt is arranged in the cracking pipes, and a spiral belt with the direction opposite to that of the spiral belt in the cracking pipes is arranged in the return pipe; by adopting the cracker with the structure, the cracked material and the solid heat carrier are mixed in the feeding bin and then enter the cracking tube for cracking, the cracked material enters the cavity at the rear end of the inner cylinder, the solid heat carrier is sent back to the feeding bin through the return tube to be mixed with new material to be cracked through the solid heat carrier separating device, and the processes are repeated so as to realize continuous cracking; because the part between pyrolysis tube and the return pipe orifice plate is directly located the urceolus, its effect of being heated is better, and the efficiency of schizolysis is higher than the efficiency of barrel in current whole, and energy utilization is rateed highly.
Description
Technical Field
The utility model relates to a schizolysis technical field, concretely relates to coaxial multicavity cracker of industry serialization.
Background
As is well known, cracking is a chemical process of converting one sample (mainly referred to as a high molecular compound) into another substance (mainly referred to as a low molecular compound) by heat energy, and not only does cracking find a good solution for the treatment of organic wastes (such as waste plastics, waste rubber, etc.) produced in large quantities in modern society, but also provides a new scheme for resource reduction and energy shortage improvement, and can provide a large amount of basic industrial raw materials and energy sources, such as carbon black, fuel oil, etc., which is one of means for solving various resource crises in the future.
The applicant of the present application has previously applied a number of patent technologies related to cracking, wherein most of the patents have been granted, and the applicant has not stopped further research on the technologies, and in the research process, the applicant finds that the pyrolyzers in the prior art are generally pyrolyzers with a single cavity, that is, the cracking process of the material is completed in a single independent cavity, and the processing capacity of the monomer equipment cannot be further increased due to factors such as heat exchange area, residence time, heat conduction efficiency, transportation and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the inventor invents an industrial continuous coaxial multi-cavity cracker which comprises an outer barrel and a rotatable inner barrel arranged in the outer barrel, wherein both ends of the inner barrel are provided with a feeding bin and a discharging bin, a plurality of cracking tubes and solid heat carrier return tubes are fixedly connected between the feeding bin and the discharging bin, both ends of each cracking tube are respectively arranged on pore plates fixedly and hermetically connected with cavities at both ends, both ends of each cracking tube penetrate through the pore plates, and the center of each pore plate is provided with the solid heat carrier return tube of which both ends penetrate through the pore plates; a spiral belt is arranged in the cracking tube, a spiral belt in the opposite direction to the spiral belt in the cracking tube is arranged in the return tube, and the part between the cracking tube and the return tube pore plate is directly positioned in the outer barrel; by adopting the cracker with the structure, the cracked material and the solid heat carrier are mixed in the feeding bin and then enter the cracking tube for cracking, the cracked material enters the cavity at the rear end of the inner cylinder, the solid heat carrier is sent back to the feeding bin through the return tube to be mixed with new material to be cracked through the solid heat carrier separating device, and the processes are repeated so as to realize continuous cracking; under the prerequisite of same length and diameter, the heat transfer area of coaxial multicavity cracker has improved several times than the cracker of single cavity, because the part between pyrolysis tube and the return pipe orifice plate directly is located the urceolus internally, and it is better to be heated the effect, and the efficiency of schizolysis is higher than the efficiency of present whole interior barrel, and energy utilization rate is high, and the throughput increases, and ton treatment cost reduces, and economic benefits is showing.
The utility model has the main improvement that on the basis of the original equipment, the structural form of the inner barrel is changed, the single inner barrel is replaced by a plurality of cracking tubes on the same circumference, the cracking tubes rotate along with the rotation of the inner barrel, the multi-cavity is particularly a plurality of cracking cavities formed by the cracking tubes on the same circumference, each cracking tube is internally provided with a spiral belt, when the cracking tube rotates to the bottom of the feeding bin, the materials to be cracked can automatically enter the cracking tube along with the solid heat carrier, along with the rotation of the inner barrel, the same operation is realized when the next cracking tube rotates to the bottom of the cavity, so that the materials to be cracked can enter the cracking tube in each cracking tube every time the inner barrel rotates for one circle, and along with the rotation of the cracking tube, the materials to be cracked are driven by the spiral belt to move to the discharge end in the inner barrel, because the cracking tubes are uniformly distributed on the circumference, and the heat-conducting plates are directly positioned in the outer cylinder body and directly contacted with hot air in the outer cylinder body, so that the heat efficiency is obviously improved compared with that of the traditional single cylinder body, the cracking efficiency is obviously accelerated, and the cracking of materials can be completed in a short formation; when the solid heat carrier enters the cavity at the rear end of the inner cylinder along with the materials, the materials attached to the solid heat carrier are basically cracked completely, the solid heat carrier is separated from solid products generated by cracking through the separating device and enters the return pipeline under the action of the guide mechanism, so that the cyclic utilization of the solid heat carrier is realized,
furthermore, the specific technical scheme of the application is as follows:
an industrial continuous coaxial multi-cavity cracker comprises an outer barrel and a rotatable inner barrel arranged inside the outer barrel, wherein cavities are arranged at two ends of the inner barrel and respectively comprise a feeding bin and a discharging bin, a plurality of cracking pipes and solid heat carrier return pipes are fixedly connected between the feeding bin and the discharging bin, two ends of each cracking pipe are respectively arranged on pore plates fixedly and hermetically connected with the cavities at two ends, two ends of each cracking pipe penetrate through the pore plates, and the centers of the pore plates are provided with the solid heat carrier return pipes of which two ends penetrate through the pore plates; a spiral belt is arranged in the cracking tube, a spiral belt in the opposite direction to the spiral belt in the cracking tube is arranged in the return tube, and the part between the cracking tube and the return tube pore plate is directly positioned in the outer barrel;
the discharge bin is provided with a solid heat carrier separating and returning device which is connected with a returning pipe, specifically, the separating and returning device directly adopts the technology in the prior application of the inventor, specifically, the technical scheme adopted in the patent No. ZL200710116223.4 named as an industrial continuous plastic cracker, more specifically, the right end of the inner cylinder 14 correspondingly recorded in the ninth embodiment is a spiral surface, a shoveling bucket is formed between the end part of the spiral surface and the spiral belt 15 and the inner cylinder 14 at the inner side of the spiral surface for conveying the solid heat carrier into the inner cylinder 14, and the separation of the solid heat carrier and the solid products generated by cracking is realized by arranging a screen mesh, besides, the solid heat carrier separating and returning device can also be realized by adopting other structures with the same functions in the prior application of the inventor, as the technical point is not the invention of the application, the inventors are not described herein in detail;
as mentioned above, the outer cylinder body of the cracker adopting the structure does not rotate, and hot air which provides heat for cracking is continuously introduced into the inner part of the outer cylinder body; the inner barrel is fixed on the cracking tube on the inner barrel through the pore plate when rotating, a spiral belt is arranged in each cracking tube, when the inner barrel rotates to the bottom of the feeding bin, materials to be cracked can automatically enter the cracking tube along with a solid heat carrier, the same operation is realized when the next cracking tube rotates to the bottom of the cavity along with the rotation of the inner barrel, so that the materials to be cracked can enter each cracking tube when the inner barrel rotates for one circle, and can move to the discharge end under the driving of the inner spiral belt along with the rotation of the cracking tube; the hot air directly forms cyclone in the cracking tube, the heat transfer efficiency is obviously improved compared with the prior art, the whole cracking tube is uniformly heated, the cracking temperature in the cracking tube can be balanced, excessive cracking or incomplete cracking is prevented, and coking is avoided;
when the solid heat carrier enters the cavity at the rear end of the inner cylinder along with the materials, the materials to be cracked attached to the solid heat carrier are basically cracked completely, the solid heat carrier is separated from solid products generated by cracking through the separating device, the solid heat carrier enters the returning pipeline under the action of the separating and returning device, the returning of the solid heat carrier can be realized due to the fact that the direction of the spiral belt in the solid heat carrier is opposite to the direction of the spiral belt in the cracking pipeline, the recycling of the solid heat carrier is realized, further, the returning pipe of the solid heat carrier is arranged at the center of the pore plate and is heated most uniformly, all the solid heat carrier is heated to the balanced temperature again in the returning process, and when the returning pipe of the solid heat carrier returns to the feeding bin, the returning pipe of the solid heat carrier can be better mixed with the materials to be cracked and carries; in the returning process, as the solid heat carrier is uniformly heated again, the materials which are carried by the solid heat carrier and are not cracked and separated can be cracked again in the returning pipe, so that the cracking efficiency of the materials is improved;
because the inner cylinder body rotates for one circle, the corresponding materials to be cracked can be fed into each cracking tube, the corresponding materials to be cracked exist in each cracking tube at a certain distance, the heating is more uniform, the top of each cracking tube does not contain the materials to be cracked, oil gas generated by cracking can be conveniently discharged, and the cracking efficiency is greatly improved;
furthermore, the outer walls of the cracking tube and the solid heat carrier return tube are provided with fins, so that the heating area of the tube can be increased, the cracking efficiency is improved, the guiding effect on hot air outside the tube can be achieved, the heat exchange efficiency is improved, the tube body is heated more uniformly, the cracking tube and the solid heat carrier return tube are actually uniformly distributed on the blank circumference and the circle center, the heating conditions of the cracking tube are basically consistent, the cracking environment in the cracking tube is consistent, the singularity of a cracking product is ensured, and the treatment capacity in units is obviously improved compared with an inner tube body with a single cavity; when the processing capacity is unchanged, the length of the whole cracker can be reduced, so that the occupied area of the cracker is reduced, and the cracker is more suitable for popularization and application;
in addition to the characteristics and the improvement points, other technical schemes can adopt the prior art of the inventor and can be matched with the prior art for use, and the independent cracking inner cylinder body in the prior art is only required to be replaced by a plurality of cracking pipes on the same circumference, so that the universality of the equipment is improved, and the updating and the replacement of the prior equipment are facilitated;
furthermore, the feeding cavity can be provided with a corresponding spiral belt, which is convenient for uniform mixing and transportation of the material to be cracked and the solid heat carrier and is also convenient for leading the material to be cracked into the cracking tube; the discharging cavity can be designed with the same spiral belt, and is matched with a separating device such as a screen, so that a solid product obtained after the solid heat carrier is separated from a solid product generated by cracking is led out of the inner cylinder of the cracker, and the continuous feeding and continuous discharging required by industrial continuous cracking are realized; the outer cylinder body is provided with a hot air inlet and a hot air outlet which both adopt the prior application technology of the inventor, and the inventor does not need to describe any more;
in conclusion, by adopting the cracker with the structure, the cracked material and the solid heat carrier are mixed in the feeding bin and then enter the cracking tube for cracking, the cracked material enters the cavity at the rear end of the inner cylinder after cracking, the solid heat carrier is sent back to the feeding bin through the return tube to be mixed with new material to be cracked through the solid heat carrier separating device, and the processes are repeated, so that continuous cracking is realized; because the part between pyrolysis tube and the return pipe orifice plate is directly located the urceolus, its effect of being heated is better, and the efficiency of schizolysis is higher than the efficiency of barrel in current whole, and energy utilization is rateed highly.
Drawings
Fig. 1 is a schematic structural diagram of a multi-chamber cracker according to the present invention;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a cross-sectional view of portion B-B of FIG. 1;
wherein 1 is an outer cylinder, 2 is an inner cylinder, 3 is a cracking tube, 4 is a solid heat carrier return tube, 5 is a discharge bin, 6 is a feeding bin, 7 is a pore plate, and 8 is a fin plate.
Detailed Description
The foregoing and other aspects of the present invention will be apparent from, and elucidated with reference to, the embodiments described hereinafter, without any limitation to the scope of the present invention. All the technologies realized based on the above contents of the present invention belong to the scope of the present invention, and except for the specific description, the following embodiments are all completed by using the conventional prior art.
Example 1:
an industrial continuous coaxial multi-cavity cracker comprises an outer barrel 1 and a rotatable inner barrel 2 arranged inside the outer barrel 1, wherein cavities are arranged at two ends of the inner barrel 2 and respectively comprise a feeding bin 6 and a discharging bin 5, a plurality of cracking tubes 3 and solid heat carrier return tubes 4 are fixedly connected between the feeding bin 6 and the discharging bin 5, two ends of each cracking tube 3 are respectively arranged on pore plates 7 fixedly and hermetically connected with the cavities at two ends, two ends of each cracking tube 3 penetrate through the pore plates 7, and the centers of the pore plates 7 are provided with the solid heat carrier return tubes 4 of which two ends penetrate through the pore plates; a spiral belt is arranged in the cracking tube 3, a spiral belt in the opposite direction to the spiral belt in the cracking tube 3 is arranged in the return tube 4, and the part between the cracking tube 3 and the hole plate of the return tube 4 is directly positioned in the outer cylinder 1;
the discharge bin is internally provided with a solid heat carrier separating and returning device which is connected with a returning pipe, specifically, the separating and returning device directly adopts the technology in the prior application of the inventor, specifically, the technical scheme is adopted in the patent No. ZL200710116223.4 named as an industrial continuous plastic cracker, more specifically, the technical scheme is that the right end of the inner cylinder 14 correspondingly recorded in the ninth embodiment is a spiral surface, and a shoveling bucket is formed between the end part of the spiral surface and the spiral belt 15 and the inner cylinder 14 on the inner side of the spiral surface and used for conveying the solid heat carrier into the inner cylinder 14 and realizing the separation of the solid heat carrier and the solid products generated by cracking by arranging a screen;
the outer walls of the cracking tube 3 and the solid heat carrier return tube 4 are both provided with a fin plate 8;
the outer cylinder body does not rotate and hot air which provides heat for cracking is continuously introduced into the inner part of the cracker by adopting the structure; the inner barrel is fixed on the cracking tube on the inner barrel through the pore plate when rotating, a spiral belt is arranged in each cracking tube, when the inner barrel rotates to the bottom of the feeding bin, materials to be cracked can automatically enter the cracking tube along with a solid heat carrier, the same operation is realized when the next cracking tube rotates to the bottom of the cavity along with the rotation of the inner barrel, so that the materials to be cracked can enter each cracking tube when the inner barrel rotates for one circle, and can move to the discharge end under the driving of the inner spiral belt along with the rotation of the cracking tube; the hot air directly forms cyclone in the cracking tube, the heat transfer efficiency is obviously improved compared with the prior art, the whole cracking tube is uniformly heated, the cracking temperature in the cracking tube can be balanced, excessive cracking or incomplete cracking is prevented, and coking is avoided;
when the solid heat carrier enters the cavity at the rear end of the inner cylinder along with the materials, the materials to be cracked attached to the solid heat carrier are basically cracked completely, the solid heat carrier is separated from solid products generated by cracking through the separating device, the solid heat carrier enters the returning pipeline under the action of the separating and returning device, the returning of the solid heat carrier can be realized due to the fact that the direction of the spiral belt in the solid heat carrier is opposite to the direction of the spiral belt in the cracking pipeline, the recycling of the solid heat carrier is realized, further, the returning pipe of the solid heat carrier is arranged at the center of the pore plate and is heated most uniformly, all the solid heat carrier is heated to the balanced temperature again in the returning process, and when the returning pipe of the solid heat carrier returns to the feeding bin, the returning pipe of the solid heat carrier can be better mixed with the materials to be cracked and carries; in the returning process, as the solid heat carrier is uniformly heated again, the materials which are carried by the solid heat carrier and are not cracked and separated can be cracked again in the returning pipe, so that the cracking efficiency of the materials is improved;
cracking tube and solid-state heat carrier loopback pipe outer wall on all be provided with the fin board, it both can increase the heating area of above-mentioned pipeline, improves the cracking efficiency, can play again in the pipeline outside to hot-blast guide effect, make heat exchange efficiency improve, the body be heated more evenly.
Example 2
An industrial continuous coaxial multi-cavity cracker comprises an outer barrel 1 and a rotatable inner barrel 2 arranged inside the outer barrel 1, wherein cavities are arranged at two ends of the inner barrel 2 and respectively comprise a feeding bin 6 and a discharging bin 5, a plurality of cracking tubes 3 and solid heat carrier return tubes 4 are fixedly connected between the feeding bin 6 and the discharging bin 5, two ends of each cracking tube 3 are respectively arranged on pore plates 7 fixedly and hermetically connected with the cavities at two ends, two ends of each cracking tube 3 penetrate through the pore plates 7, and the centers of the pore plates 7 are provided with the solid heat carrier return tubes 4 of which two ends penetrate through the pore plates; a spiral belt is arranged in the cracking tube 3, a spiral belt in the opposite direction to the spiral belt in the cracking tube 3 is arranged in the return tube 4, and the part between the cracking tube 3 and the hole plate of the return tube 4 is directly positioned in the outer cylinder 1;
the discharge bin is internally provided with a solid heat carrier separating and returning device which is connected with a returning pipe, specifically, the separating and returning device directly adopts the technology in the prior application of the inventor, specifically, the technical scheme is adopted in the patent No. ZL200710116223.4 named as an industrial continuous plastic cracker, more specifically, the technical scheme is that the right end of the inner cylinder 14 correspondingly recorded in the ninth embodiment is a spiral surface, and a shoveling bucket is formed between the end part of the spiral surface and the spiral belt 15 and the inner cylinder 14 on the inner side of the spiral surface and used for conveying the solid heat carrier into the inner cylinder 14 and realizing the separation of the solid heat carrier and the solid products generated by cracking by arranging a screen;
the outer walls of the cracking tube 3 and the solid heat carrier return tube 4 are both provided with a fin plate 8;
spiral belts are arranged on the inner walls of the feeding cavity and the discharging cavity.
Claims (4)
1. The utility model provides a coaxial multicavity cracker of industry serialization, includes outer barrel (1) and sets up barrel (2) in the rotatable of outer barrel (1) inside, its characterized in that: the two ends of the inner cylinder (2) are respectively provided with a cavity which is respectively a feeding bin (6) and a discharging bin (5), and a plurality of cracking tubes (3) and solid heat carrier return tubes (4) are fixedly connected between the feeding bin (6) and the discharging bin (5).
2. The industrial continuous coaxial multi-chamber cracker according to claim 1, wherein: the two ends of the cracking tube (3) are respectively arranged on pore plates (7) fixedly and hermetically connected with the cavities at the two ends, the two ends of the cracking tube (3) penetrate through the pore plates (7), and a solid heat carrier return tube (4) with two ends penetrating through the pore plates is arranged in the center of the pore plates (7); the part between the cracking tube (3) and the orifice plate of the solid heat carrier return tube (4) is directly positioned in the outer cylinder (1).
3. The industrial continuous coaxial multi-chamber cracker according to claim 1 or 2, characterized in that: a spiral belt is arranged in the cracking tube (3), and a spiral belt with the direction opposite to that of the spiral belt in the cracking tube (3) is arranged in the solid heat carrier return tube (4).
4. The industrial continuous coaxial multi-chamber cracker according to claim 1 or 2, characterized in that: and fin plates (8) are arranged on the outer walls of the cracking tube (3) and the solid heat carrier return tube (4).
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CN111073676A (en) * | 2019-12-30 | 2020-04-28 | 济南恒誉环保科技股份有限公司 | Industrial continuous coaxial multi-cavity cracker |
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CN111073676A (en) * | 2019-12-30 | 2020-04-28 | 济南恒誉环保科技股份有限公司 | Industrial continuous coaxial multi-cavity cracker |
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