Coke cleaning device and thermal plasma reactor

Abstract

The invention discloses a decoking device and a thermal plasma reactor, and belongs to the technical field of decoking equipment, the decoking device is used for decoking a reaction tank, the reaction tank is of a vertically-through cylindrical structure, is provided with a top opening and a bottom opening and comprises a top cover, a first lifting driving assembly, a bottom cover and a vertical rod, and the top cover is used for blocking the top opening; the outer side wall of the top cover is slidably connected to the inner wall of the reaction tank; the first lifting driving assembly is used for driving the top cover to move up and down; the bottom cover is used for blocking the bottom opening; the top ends of the vertical rods are connected to the top cover, and the bottom ends of the vertical rods are connected to the bottom cover. The top cover and the bottom cover can block the top opening and the bottom opening at the same time, so that the reaction tank forms a closed cavity, and when the top cover moves downwards, the bottom cover can open the bottom opening. According to the invention, coke on the inner wall of the reaction tank can be cleaned by using the top cover, and the reaction tank can be opened, so that the cleaned coke is discharged from the bottom opening, and the inner wall of the reaction tank can be cleaned efficiently and conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of coke cleaning equipment, in particular to a coke cleaning device and a thermal plasma reactor. Background Art

[0002] A thermal plasma reactor is a highly efficient reaction device that uses energy sources such as electric fields or high-temperature arcs to ionize gas molecules or atoms to form plasma. Plasma, an ionized substance composed of electrons, ions, and neutral particles, is highly reactive and fluid. It interacts with reactants within the reactor through mechanisms such as collision, excitation, and ionization, enabling efficient chemical conversion or physical treatment.

[0003] In practical applications, thermal plasma reactors have become a key technology in the field of hazardous waste treatment due to their ability to generate extremely high-temperature plasma environments, showing significant environmental benefits and broad prospects.

[0004] In the treatment of malodorous gases, the strong oxidizing free radicals and high-speed particles generated by high-temperature plasma can quickly decompose harmful components, such as sulfur, nitrogen compounds and VOCs, and convert them into harmless substances, effectively dealing with complex and high-concentration gases.

[0005] In terms of methane conversion and reforming, thermal plasma reactors can promote the reaction of methane with carbon dioxide, water vapor, etc. to generate synthesis gas, realizing the resource utilization of methane. The process is efficient and flexible.

[0006] For nitrogen oxide removal, thermal plasma technology can activate and crack nitrogen oxide molecules to generate harmless nitrogen and oxygen without the need for additional additives, avoiding secondary pollution. It can also work in conjunction with traditional denitrification technology to improve removal efficiency.

[0007] The core advantage of thermal plasma reactors lies in their extreme thermal environment, which completely burns or pyrolyzes the organic components in waste within a very short time, resulting in rapid and thorough treatment and reducing harmful residues and emissions. Furthermore, this technology is compact, flexible, and highly adaptable, meeting the needs of various scales and types of waste treatment.

[0008] However, thermal plasma reactions often produce coke and sediment. These byproducts easily adhere to the reactor's inner walls, forming a stubborn coke layer. Due to the complex design and difficult disassembly and maintenance of existing reactors, coke removal is time-consuming and prohibitively expensive, severely limiting the efficiency of continuous processing. Downtime for cleanup can even delay hazardous waste disposal.

[0009] In response to the above problems, there is an urgent need to develop an efficient and convenient thermal plasma reactor coke cleaning device to solve technical bottlenecks such as the difficulty in cleaning the inner wall coke, high maintenance costs and impact on continuous production. Summary of the Invention

[0010] The purpose of the present invention is to provide a coke cleaning device and a thermal plasma reactor to solve the problems existing in the above-mentioned prior art. By moving the top cover downward, the coke on the inner wall of the reaction tank can be cleaned using the top cover, and the reaction tank can be opened so that the cleaned coke is discharged from the bottom opening, thereby enabling the inner wall of the reaction tank to be cleaned efficiently and conveniently.

[0011] To achieve the above object, the present invention provides the following solutions:

[0012] The present invention provides a coke clearing device for clearing coke from a reaction tank, wherein the reaction tank is a cylindrical structure that passes through from top to bottom, and has a top opening and a bottom opening, and comprises a top cover, a first lifting drive assembly, a bottom cover and a vertical pole, wherein the top cover is used to block the top opening, and the outer side wall of the top cover is used to be slidably connected to the inner wall of the reaction tank; the first lifting drive assembly is used to drive the top cover to move up and down; the bottom cover is used to block the bottom opening; the top end of the vertical pole is connected to the top cover, and the bottom end of the vertical pole is connected to the bottom cover; the top cover and the bottom cover can simultaneously block the top opening and the bottom opening, so that the reaction tank forms a closed cavity, and when the top cover moves downward, the bottom cover can open the bottom opening.

[0013] In one embodiment, a spraying mechanism is further included, which includes a storage tank, a delivery pipe, a liquid ring and a nozzle. The liquid ring is installed at the bottom of the top cover, and the top cover is provided with a through hole for the delivery pipe to pass through. The liquid ring is connected to the storage tank through the delivery pipe, and the nozzle is connected to the liquid ring. The nozzles are evenly distributed along the liquid ring.

[0014] In one embodiment, the spray mechanism further includes a baffle, a stirring shaft and a second servo motor, the stirring shaft is located in the storage tank, the second servo motor is installed on the baffle and is powered by the stirring shaft, and a dustproof ventilation net is installed on the baffle.

[0015] In one embodiment, the first lifting drive assembly includes a first forward and reverse motor, a first large gear, a first small gear, a first threaded column and a threaded sleeve. The first forward and reverse motor is powered and connected to the first large gear. The first large gear is meshed with at least two first small gears. The first small gear is coaxially connected to the first threaded column. The first threaded column is threadedly connected to the threaded sleeve. The bottom end of the threaded sleeve is connected to the top cover.

[0016] In one embodiment, the bottom cover includes a thermal plasma generating assembly and a sealing ring, the sealing ring having a first inclined surface for fitting and connecting to the reaction tank and a second inclined surface for fitting and connecting to the thermal plasma generating assembly, the first inclined surface being inclined upward toward the inner diameter side of the sealing ring, and the second inclined surface being inclined upward toward the outer diameter side of the sealing ring, and the sealing ring being connected to the vertical pole.

[0017] In one embodiment, it further includes a cleaning brush and a first servo motor, wherein the first servo motor is installed on the top cover, the cleaning brush is located below the top cover and is powered by the first servo motor, and the cleaning brush is used to clean the surface of the thermal plasma generating component.

[0018] In one embodiment, it further includes a recovery mechanism, a column and a chassis, the recovery mechanism includes a recovery box and a screen, the recovery box is installed on the chassis, a through hole is opened in the middle of the recovery box, a recovery port is provided on the top of the recovery box, the recovery port is installed with the screen, the recovery port is located below the sealing ring, an insertion rod is provided on the chassis, the column is provided in the through hole, the top end of the column is connected to the thermal plasma generating assembly, and the bottom end of the column is inserted into the insertion rod.

[0019] In one embodiment, it further includes a base and a moving mechanism, the base is connected to the chassis, the base is provided with a groove opening downward, the moving mechanism includes a second lifting drive component and a universal wheel, the second lifting drive component is used to drive the universal wheel to extend or retract the groove.

[0020] In one embodiment, the second lifting drive assembly includes a second forward and reverse motor, a second large gear, a second small gear, a second threaded column and a load-bearing plate, the second forward and reverse motor is installed on the base, the second forward and reverse motor is powered and connected to the second large gear, the second large gear is meshed and connected to at least two of the second small gears, the second small gear is coaxially connected to the second threaded column, the second threaded column is threadedly connected to the load-bearing plate, and at least three of the universal wheels are installed on the load-bearing plate.

[0021] The present invention provides a thermal plasma reactor, comprising the decoking device as described above; and further comprising a bracket, wherein the bracket comprises a bottom plate, a first curved plate, a middle plate, a second curved plate and a top plate arranged in sequence from bottom to top, the reaction tank is installed on the middle plate, and the first lifting drive assembly is installed on the top plate.

[0022] Compared with the prior art, the present invention has achieved the following technical effects:

[0023] The present invention utilizes a top cover, a bottom cover and a reaction tank to form a closed cavity, which can be used for thermal plasma reaction. When coke cleaning is required, the top cover is driven to move by a first lifting drive assembly. By moving the top cover downward, the bottom cover can be simultaneously moved downward under the action of the vertical rod. In this way, the top cover can be used to clean the coke on the inner wall of the reaction tank, and the reaction tank can be opened by moving the bottom cover so that the cleaned coke is discharged from the bottom opening, thereby enabling the inner wall of the reaction tank to be cleaned efficiently and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 is a three-dimensional diagram of a thermal plasma reactor according to an embodiment of the present invention;

[0026] Figure 2 is a front view of a thermal plasma reactor according to an embodiment of the present invention;

[0027] Figure 3 is a front cross-sectional view of a thermal plasma reactor according to an embodiment of the present invention;

[0028] Figure 4 This is a front cross-sectional view of the recovery mechanism in an embodiment of the present invention;

[0029] Figure 5 is a front cross-sectional view of the moving mechanism in an embodiment of the present invention;

[0030] Figure 6 This is a front cross-sectional view of the spray mechanism in an embodiment of the present invention;

[0031] Among them, 1. bottom plate; 2. bottom plate; 3. first curved plate; 4. middle plate; 5. second curved plate; 6. top plate; 7. limit sleeve; 8. plug rod; 9. column; 10. controller; 11. thermal plasma generating assembly; 12. reaction tank; 13. air inlet pipe; 14. exhaust pipe; 15. baffle; 16. cavity; 17. top plate; 18. first forward and reverse motor; 19. first large gear; 20. first rotating shaft; 21. first small gear; 22. first threaded column; 23. threaded sleeve; 24. top cover; 25. feed hole; 26. sealing plug; 27. first servo motor; 28. cleaning brush; 29. column; 30. sealing ring; 31. recycling mechanism; 311. recycling box; 3 12. Limiting ring; 313. Gasket; 314. Screen; 315. Ring; 32. Moving mechanism; 321. Base; 322. Second forward and reverse motor; 323. Second large gear; 324. Second rotating shaft; 325. Second small gear; 326. Second threaded column; 327. Threaded ring; 328. Bearing plate; 329. Universal wheel; 3210. Groove; 33. Spraying mechanism; 331. Bearing ring; 332. Placement ring; 333. Storage tank; 334. Baffle; 335. Insert ring; 336. Dustproof ventilation net; 337. Second servo motor; 338. Agitator shaft; 339. Valve; 3310. Delivery pipe; 3311. Liquid ring; 3312. Spray head. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] The purpose of the present invention is to provide a coke cleaning device and a thermal plasma reactor to solve the problems existing in the prior art. By moving the top cover downward, the coke on the inner wall of the reaction tank can be cleaned using the top cover, and the reaction tank can be opened so that the cleaned coke is discharged from the bottom opening, thereby enabling the inner wall of the reaction tank to be cleaned efficiently and conveniently.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1 to 6As shown, the present invention provides a coke cleaning device for cleaning coke from a reactor 12. The reactor 12 is a cylindrical structure that extends vertically through the reactor 12, with top and bottom openings. The reactor 12 can be used as the vessel of a thermal plasma reactor, and a thermal plasma generating assembly 11 can be disposed therein. The coke cleaning device includes a top cover 24, a first lifting drive assembly, a bottom cover, and a vertical rod 29. The top cover 24 is used to seal the top opening. The outer wall of the top cover 24 is designed to conform to the inner wall of the reactor 12, so that the outer wall of the top cover 24 can both seal against and slide against the inner wall of the reactor 12. When coke adheres to the inner wall of the reactor 12, the movement of the top cover 24 can remove the coke. The first lifting drive assembly is used to drive the top cover 24 up and down. To achieve the corresponding driving function, the first lifting drive assembly can be automatically or manually operated and can be a telescopic cylinder, a lead screw nut, or a handheld push rod. In short, any structure that can apply power to the movement of the top cover 24 is sufficient. The bottom cover is used to block the bottom opening. The bottom cover can be a unitary structure or a split structure. The top end of the vertical rod 29 is connected to the top cover 24, and the bottom end of the vertical rod 29 is connected to the bottom cover. Therefore, the vertical rod 29 can be connected to a unitary bottom cover or a split bottom cover. In either case, a channel for the coke to fall is formed at the bottom of the reaction tank 12. The top cover 24 and the bottom cover can move synchronously and can simultaneously block the top opening and the bottom opening. In this way, the reaction tank 12 forms a closed cavity, allowing a thermal plasma reaction to proceed within the reaction tank 12. When decoking is required, the top cover 24 moves downward, and the bottom cover moves synchronously, allowing the bottom cover to open the bottom opening, facilitating the coke to fall downward and be discharged from the reaction tank 12.

[0036] The present invention utilizes a top cover 24, a bottom cover and a reaction tank 12 to form a closed cavity, which can be used for thermal plasma reaction. When coke cleaning is required, the first lifting drive assembly is used to drive the top cover 24 to move. By moving the top cover 24 downward, the bottom cover can be simultaneously moved downward under the action of the vertical rod 29. In this way, the top cover 24 can be used to clean the coke on the inner wall of the reaction tank 12, and the reaction tank 12 can be opened by moving the bottom cover so that the cleaned coke is discharged from the bottom opening, thereby enabling the inner wall of the reaction tank 12 to be cleaned efficiently and conveniently.

[0037] To enable the reaction tank 12 to function as a thermal plasma reactor, an air inlet pipe 13 and an exhaust pipe 14 may be provided through the inner wall of the reaction tank 12. The air inlet pipe 13 is equipped with an air inlet fan and a dust screen, and the exhaust pipe 14 is equipped with an air outlet fan. The front end of the reaction tank 12 (the end facing the operator) may also be provided with an opening, and a cover 15 is installed on the inner wall of the opening. When the cover 15 is opened, waste can be placed in the reaction tank 12 or removed from the reaction tank 12.

[0038] In one embodiment, if Figure 2 、 Figure 3 and Figure 6 As shown, it also includes a spray mechanism 33, which includes a storage tank 333, a delivery pipe 3310, a liquid ring 3311 and a nozzle 3312. The storage tank 333 is filled with cleaning liquid, which can be clean water or a mixture of clean water and cleaning reagent. The liquid ring 3311 is installed at the bottom of the top cover 24. The liquid ring 3311 is an annular tube structure, and the interior is used for circulating cleaning liquid. The top cover 24 is provided with a through hole for the delivery pipe 3310 to pass through. After the delivery pipe 3310 passes through the above-mentioned through hole, the liquid ring 3311 inside the reaction tank 12 and the storage tank 333 outside the reaction tank 12 are connected to each other, so that the cleaning liquid in the storage tank 333 can be supplied to the liquid ring 3311. To ensure smooth supply of cleaning liquid, a valve 339 is provided at the delivery pipe 3310 or at the connection between the delivery pipe 3310 and the storage tank 333. Valve 339 can control the flow of cleaning liquid. In addition, a pump can be provided to drive the flow of cleaning liquid. In this example, the delivery pipe 3310 is connected to the bottom of the storage tank 333, which is located above the reaction tank 12, so that gravity can be used to achieve the flow of cleaning liquid. The provision of the liquid ring 3311 allows the cleaning liquid to be evenly delivered to any circumferential position within the reaction tank 12. After the nozzle 3312 is connected to the liquid ring 3311, the nozzle 3312 can be used to spray the cleaning liquid to the corresponding spray cleaning position, which helps to improve the cleaning efficiency of the coke.

[0039] In this example, the nozzles 3312 are evenly distributed along the liquid ring 3311 , for example, one is set in each symmetrical direction, or three are distributed in a herringbone shape, etc. The cleaning liquid sprayed by the nozzles 3312 can cover most or the entire space of the reaction tank 12 .

[0040] The top cover 24 may also be provided with a feed hole 25 extending vertically therethrough. The feed hole 25 and the through hole for the delivery tube 3310 are located on either side of the top cover 24. A sealing plug 26 is sleeved on the inner wall of the feed hole 25. By providing the feed hole 25, a small amount of reactants can be added. When the reaction in the reaction tank 12 is complete and the top cover 24 needs to be slid downward, the sealing plug 26 can be removed. At this time, excess gas in the reaction tank 12 is discharged through the feed hole 25, helping to quickly balance the internal pressure of the reaction tank 12.

[0041] In one embodiment, if Figure 2 、 Figure 3 and Figure 6As shown, the spray mechanism 33 also includes a baffle 334, a stirring shaft 338, and a second servo motor 337. The stirring shaft 338 is located in the storage tank 333. The stirring shaft 338 can be connected to a stirring blade so that when the stirring shaft 338 rotates, it can stir and mix the cleaning liquid in the storage tank 333, thereby improving the mixing effect of the cleaning water and cleaning reagent. The second servo motor 337 is mounted on the baffle 334 and is powered by the stirring shaft 338. The second servo motor 337 drives the rotation of the stirring shaft 338. The baffle 334 can also be equipped with a dustproof ventilation net 336. The dustproof ventilation net 336 can prevent dust and other debris from entering the storage tank 333 and affecting the cleaning liquid, and can also ventilate and exhaust, preventing pressure changes in the storage tank 333 from adversely affecting the thermal plasma reaction.

[0042] In this example, an insert ring 335 is sleeved on the opening at one end of the top of the baffle 334, and a dustproof ventilation net 336 is fixedly connected to the inner wall of the insert ring 335. After removing the insert ring 335, the staff can put clean water or cleaning reagents into the storage tank 333.

[0043] In one embodiment, if Figure 2 and Figure 3 As shown, the first lifting drive assembly includes a first forward and reverse motor 18, a first large gear 19, a first small gear 21, a first threaded column 22 and a threaded sleeve 23. The first forward and reverse motor 18 can be installed on a frame and supported and fixed by the frame. The first forward and reverse motor 18 is powered by the first large gear 19 so as to be able to drive the first large gear 19 to rotate. The first large gear 19 is meshed with at least two first small gears 21. The rotation of the first large gear 19 can synchronously drive two or more first small gears 21 to rotate. The first small gear 21 is coaxially connected to the first threaded column 22, that is, when the first small gear 21 rotates, it can rotate synchronously with the first threaded column 22. The first threaded column 22 is threadedly connected to the threaded sleeve 23. At this time, the first threaded column 22 and the threaded sleeve 23 form a screw nut structure. When the first threaded column 22 rotates, it can be converted into an axial movement of the threaded sleeve 23 along the first threaded column 22 (for example, up and down movement). The bottom end of the threaded sleeve 23 is connected to the top cover 24 , that is, when the threaded sleeve 23 moves up and down, it can drive the top cover 24 to move up and down.

[0044] When the first forward and reverse motor 18 rotates with the first large gear 19, the first threaded column 22 at the bottom of the two or more groups of first small gears 21 will also rotate together. At this time, the threaded sleeve 23 can move up and down on the outer wall of the rotating first threaded column 22. At the same time, the outer wall of the top cover 24 will also slide up and down close to the inner wall of the reaction tank 12. When the top cover 24 slides downward, the coke attached to the inner wall of the reaction tank 12 can be removed, the rotation direction of the first forward and reverse motor 18 is changed, and the top cover 24 moves upward to reset.

[0045] Combine Figure 3 As shown, the frame includes a top plate 6, which defines a cavity 16. The top of the inner wall of the cavity 16 is fixedly connected to a top plate 17. A first large gear 19 and a first small gear 21 can be installed in the cavity 16. A first forward and reverse motor 18 is installed on the top plate 17. A first rotating shaft 20 can also be provided. The top of the first rotating shaft 20 is fixedly connected to the bottom of the top plate 17. The first small gear 21 is rotatably mounted on the first rotating shaft 20, so that the first rotating shaft 20 can provide rotational support for the first small gear 21.

[0046] In one embodiment, if Figure 2 and Figure 3 As shown, the bottom cover includes a thermal plasma generating assembly 11 and a sealing ring 30. The sealing ring 30 has a first inclined surface for attaching to the reaction tank 12 and a second inclined surface for attaching to the thermal plasma generating assembly 11. The first inclined surface is slanted upward toward the inner diameter of the sealing ring 30, while the second inclined surface is slanted upward toward the outer diameter of the sealing ring 30. The thermal plasma generating assembly 11 and the sealing ring 30 together form the bottom cover. The outer wall of the sealing ring 30 abuts the bottom end of the inner wall of the reaction tank 12, and the inner wall of the sealing ring 30 abuts the bottom end of the outer wall of the thermal plasma generating assembly 11, thereby sealing the bottom opening of the reaction tank 12. The sealing ring 30 is connected to the vertical rod 29. When the top cover 24 moves downward, the vertical rod 29 can push the sealing ring 30 downward, forming an annular gap between the thermal plasma generating assembly 11 and the reaction tank 12. The annular gap serves as a channel for the coke to fall. Of course, in some cases, the sealing ring 30 can move downward together with the thermal plasma generating assembly 11.

[0047] In one embodiment, if Figure 3 As shown, the reactor 12 further includes a cleaning brush 28 and a first servo motor 27. The first servo motor 27 is mounted on the top cover 24. The cleaning brush 28 is located below the top cover 24 and is powered by the first servo motor 27. The first servo motor 27 can drive the cleaning brush 28 to rotate. During the reaction phase, the cleaning brush 28 is located at the top of the reactor 12 along with the top cover 24, and the thermal plasma generating assembly 11 is located at the bottom of the reactor 12. When decoking, the top cover 24 drives the cleaning brush 28 downward. At this time, the thermal plasma generating assembly 11 remains stationary, and the cleaning brush 28 can adhere to and cover the surface of the thermal plasma generating assembly 11. The first servo motor 27 is then controlled to rotate, driving the cleaning brush 28 to remove coke attached to the surface of the thermal plasma generating assembly 11. At the same time, the removed coke and other waste will fall downward through the annular gap and be discharged from the reactor 12.

[0048] When the top cover 24 slides downward, the coke attached to the inner wall of the reaction tank 12 can be removed. When the rotating cleaning brush 28 contacts the surface of the thermal plasma generating assembly 11, the coke attached to the surface of the thermal plasma generating assembly 11 can be cleaned. At the same time, when the top cover 24 slides downward, the sealing ring 30 at the bottom of the vertical rod 29 will also move downward. At this time, the cleaned coke will pass through the gap between the reaction tank 12 and the thermal plasma generating assembly 11 and can then be collected. For example, by placing a recovery box 311 at the bottom for collection, the coke falls into the recovery box 311, which not only saves time but also speeds up the treatment of hazardous waste.

[0049] In one embodiment, if Figures 2 to 4 As shown, the recycling mechanism 31, the column 9 and the chassis 2 are also included. The recycling mechanism 31 includes a recycling box 311 and a screen 314. The recycling box 311 is installed on the chassis 2, and the chassis 2 is used to support the recycling box 311. A through hole is opened in the middle of the recycling box 311. At this time, the recycling box 311 is a structure with an annular storage cavity. A recycling port is provided on the top of the recycling box 311. The recycling port is installed with a screen 314. The recycling port is located below the sealing ring 30. As a result, waste such as coke cleaned by the reaction tank 12 can fall into the screen 314, be filtered by the screen 314, and then enter the recycling box 311. By providing the screen 314, the coke mixed in the flowing clean water can be filtered, and the recycling box 311 can recycle the clean water after use, thereby reducing the waste of water resources. An insertion rod 8 is provided on the chassis 2, and one or more insertion rods 8 are distributed. A column 9 is provided in the through hole, the top end of the column 9 is connected to the thermal plasma generating component 11, and the bottom end of the column 9 is inserted into the insertion rod 8. Through the connection between the column 9 and the insertion rod 8, the column 9 is stably connected to the chassis 2, providing stable support for the thermal plasma generating component 11.

[0050] In this example, the recovery box 311 is formed by an inner annular wall and an outer annular wall nested together, forming an annular receiving cavity between the inner and outer annular walls. The inner side of the inner annular wall is used to mount the column 9. A limit ring 312 is fixedly connected to the top of the inner wall of the outer annular wall. A collar 315 is connected to the inner diameter side of the screen 314, and a backing ring 313 is connected to the outer diameter side of the screen 314. The collar 315, screen 314, and backing ring 313 form a detachable mounting assembly. The backing ring 313 is placed on the limit ring 312 to install the screen 314.

[0051] In this example, the limiting sleeve 7 is connected to the bottom end of the column 9. The distribution of the limiting sleeve 7 corresponds to the distribution of the insertion rod 8. The limiting sleeve 7 is sleeved on the insertion rod 8 to realize the connection between the column 9 and the insertion rod 8. By setting a simple connection method between the insertion rod 8 and the limiting sleeve 7, not only can the column 9 be supported, but the column 9 can also be easily lifted upward. When the column 9 moves upward, the restriction on the recycling box 311 can be released, and the recycling box 311 can be removed from the chassis 2.

[0052] In addition, in this example, the controller 10 of the thermal plasma generating assembly 11 is located at the bottom of the thermal plasma generating assembly 11 , and the top of the column 9 is fixedly connected to the controller 10 .

[0053] In one embodiment, if Figure 2 、 Figure 3 and Figure 5 As shown, the device further includes a base 321 and a moving mechanism 32. The base 321 is connected to the chassis 2 and defines a downward-facing groove 3210. The moving mechanism 32 includes a second lifting drive assembly and a universal wheel 329. The second lifting drive assembly is used to drive the universal wheel 329 to extend or retract into the groove 3210. When the universal wheel 329 is extended, the entire device can be supported by the universal wheel 329 for movement. When the universal wheel 329 is retracted, the base 321 provides stable support. The second lifting drive assembly can be implemented in the form of a telescopic cylinder or a lead screw nut.

[0054] In one embodiment, if Figure 2 、 Figure 3 and Figure 5 As shown, the second lift drive assembly includes a second forward / reverse motor 322, a second large gear 323, a second small gear 325, a second threaded post 326, and a bearing plate 328. The second forward / reverse motor 322 is mounted on the base 321 and is motively connected to the second large gear 323 to drive the rotation of the second large gear 323. The second large gear 323 is meshed with at least two second small gears 325. Rotation of the second large gear 323 synchronously drives the rotation of two or more second small gears 325. The second small gears 325 are coaxially connected to the second threaded post 326, meaning that rotation of the second small gears 325 synchronizes with rotation of the second threaded post 326. The second threaded post 326 is threadedly connected to the bearing plate 328. The second threaded post 326 and the bearing plate 328 form a screw-nut structure. Rotation of the second threaded post 326 translates into axial movement of the bearing plate 328 (e.g., up and down movement) along the second threaded post 326. The synchronous rotation of the plurality of second threaded columns 326 can improve the stability of the up and down movement of the bearing plate 328. At least three universal wheels 329 are mounted on the bearing plate 328 and can be distributed at the outer edge of the bearing plate 328 to provide stable support for the movement of the device.

[0055] A second rotating shaft 324 may also be provided, the top end of which is fixedly connected to the bottom of the base 321, and a second pinion 325 is rotatably mounted on the second rotating shaft 324, thereby providing rotational support for the second pinion 325. When the second forward and reverse motor 322 rotates the second large gear 323, the two or more sets of second pinions 325 at the bottom end of the second rotating shaft 324 also rotate with the second threaded column 326. At this time, the threaded ring 327 can move up and down on the outer wall of the rotating second threaded column 326, and the bearing plate 328 also slides up and down with it. When the bearing plate 328 moves downward, the multiple sets of universal wheels 329 can be placed on the ground, and the entire device is slightly raised, at this time, the entire device can be moved. When the bearing plate 328 moves upward, the multiple sets of universal wheels 329 can be retracted into the groove 3210, and the bottom surface of the base 321 is placed stably on the ground, and the entire device is now unable to move.

[0056] The second threaded column 326 can be directly threadedly connected to the threaded hole opened on the bearing plate 328. In this example, a threaded ring 327 is additionally provided. The threaded ring 327 is threadedly connected to the second threaded column 326. The threaded ring 327 is fixedly connected to the bearing plate 328. The threaded ring 327 can be made of a material with better performance such as strength and hardness to ensure stable connection and support between the threaded ring 327 and the second threaded column 326, avoid damage to the thread due to load-bearing, and improve service life.

[0057] like Figures 1 to 6 As shown, the present invention provides a thermal plasma reactor comprising the decoking device described above; and a bracket for supporting a reaction tank 12 and other ancillary structures. The bracket comprises, arranged from bottom to top, a bottom plate 2, a first curved plate 3, a middle plate 4, a second curved plate 5, and a top plate 6. The reaction tank 12 is mounted on the middle plate 4, and the first lifting drive assembly is mounted on the top plate 6. The first curved plate 3 and the second curved plate 5 are aligned vertically, and the bracket as a whole forms a cylindrical body similar to a cross-section.

[0058] The chassis 2 is mounted on the base plate 1 . The base plate 1 may be in a conical shape or a frame-type structure. A moving mechanism 32 is provided at the bottom of the base plate 1 .

[0059] The storage tank 333 of the spraying mechanism 33 is installed on the second curved plate 5 through the load-bearing ring 331. A placement ring 332 is provided on the top of the load-bearing ring 331. The storage tank 333 can be placed in the placement ring 332. By setting a simple connection method between the storage tank 333 and the placement ring 332, installation and disassembly are relatively convenient and quick.

[0060] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A decoking device, characterized in that: Used for decoking a reaction tank, the reaction tank is a cylindrical structure that is through-through from top to bottom, with a top opening and a bottom opening, comprising: A top cover, the top cover is used to block the top opening, and the outer side wall of the top cover is used to be slidably connected to the inner wall of the reaction tank; a first lifting drive assembly, the first lifting drive assembly being used to drive the top cover to move up and down; a bottom cover, the bottom cover being used to seal the bottom opening; and a vertical pole, wherein the top end of the vertical pole is connected to the top cover, and the bottom end of the vertical pole is connected to the bottom cover; The top cover and the bottom cover can simultaneously block the top opening and the bottom opening, so that the reaction tank forms a closed cavity. When the top cover moves downward, the bottom cover can open the bottom opening.

2. The decoking device according to claim 1, characterized in that: It also includes a spraying mechanism, which includes a storage tank, a delivery pipe, a liquid ring and a nozzle. The liquid ring is installed at the bottom of the top cover. The top cover is provided with a through hole for the delivery pipe to pass through. The liquid ring is connected to the storage tank through the delivery pipe. The nozzle is connected to the liquid ring. The nozzles are evenly distributed along the liquid ring.

3. The decoking device according to claim 2, characterized in that: The spray mechanism further includes a baffle, a stirring shaft and a second servo motor. The stirring shaft is located in the storage tank. The second servo motor is installed on the baffle and is powered by the stirring shaft. A dustproof ventilation net is installed on the baffle.

4. The decoking device according to claim 1, characterized in that: The first lifting drive assembly includes a first forward and reverse motor, a first large gear, a first small gear, a first threaded column and a threaded sleeve. The first forward and reverse motor is powered and connected to the first large gear. The first large gear is meshed with at least two first small gears. The first small gear is coaxially connected to the first threaded column. The first threaded column is threadedly connected to the threaded sleeve. The bottom end of the threaded sleeve is connected to the top cover.

5. The decoking device according to claim 1, characterized in that: The bottom cover includes a thermal plasma generating assembly and a sealing ring. The sealing ring has a first inclined surface for fitting and connecting to the reaction tank and a second inclined surface for fitting and connecting to the thermal plasma generating assembly. The first inclined surface is inclined upward toward the inner diameter side of the sealing ring, and the second inclined surface is inclined upward toward the outer diameter side of the sealing ring. The sealing ring is connected to the vertical pole.

6. The decoking device according to claim 5, characterized in that: It also includes a cleaning brush and a first servo motor, wherein the first servo motor is installed on the top cover, the cleaning brush is located below the top cover and is powered by the first servo motor, and the cleaning brush is used to clean the surface of the thermal plasma generating component.

7. The decoking device according to claim 5, characterized in that: It also includes a recovery mechanism, a column and a chassis. The recovery mechanism includes a recovery box and a screen. The recovery box is installed on the chassis. A through hole is opened in the middle of the recovery box. A recovery port is provided on the top of the recovery box. The screen is installed in the recovery port. The recovery port is located below the sealing ring. A plug rod is provided on the chassis. The column is provided in the through hole. The top end of the column is connected to the thermal plasma generating component, and the bottom end of the column is plugged into the plug rod.

8. The decoking device according to claim 7, characterized in that: It also includes a base and a moving mechanism, the base is connected to the chassis, the base is provided with a groove opening downward, the moving mechanism includes a second lifting drive component and a universal wheel, the second lifting drive component is used to drive the universal wheel to extend or retract the groove.

9. The decoking device according to claim 8, characterized in that: The second lifting drive assembly includes a second forward and reverse motor, a second large gear, a second small gear, a second threaded column and a load-bearing plate. The second forward and reverse motor is installed on the base. The second forward and reverse motor is powered by the second large gear. The second large gear is meshed with at least two of the second small gears. The second small gear is coaxially connected to the second threaded column. The second threaded column is threadedly connected to the load-bearing plate. At least three universal wheels are installed on the load-bearing plate.

10. A thermal plasma reactor, characterized in that: include: The decoking device according to any one of claims 1 to 9; And a bracket, the bracket includes a bottom plate, a first curved plate, a middle plate, a second curved plate and a top plate arranged in sequence from bottom to top, the reaction tank is installed on the middle plate, and the first lifting drive assembly is installed on the top plate.

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