A coke removing device for oil refining furnace

Abstract

The utility model discloses a decoking device of oil refinery furnace, including base still including installation above lifting assembly, install on the fixed station of lifting assembly, install on the telescopic component of fixed station and install on the decoking component of telescopic component output, through lifting assembly drive fixed station remove, through telescopic component drive decoking component remove in the oil refinery furnace, decoking component includes installation on the fixed shell of telescopic component output, the sliding connection of fixed shell inboard is multiple groups of movable link, fixedly connected in movable link on the fixed pin, the sliding sleeve of sliding connection in movable link, install between movable link and the spring of sliding sleeve, the utility model discloses can adjust the diameter of decoking component flexibly, and the furnace wall of different inner diameter of adaptation oil refinery furnace, adaptive buffering avoids the excessive friction of cutter and furnace tube and scratches, can satisfy the decoking demand of diversified oil refinery furnace, and the versatility and adaptability are strong, help enterprise to expand market, and promote product competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of oil refining equipment technology, and in particular to a coking device for an oil refining furnace. Background Technology

[0002] A coke removal device for an oil refinery is a specialized device or system used to remove coke deposits that form on the inner walls of the furnace tubes and inside the furnace chamber during the operation of oil refineries (such as heating furnaces, cracking furnaces, and other core equipment). This coke is formed by the thermal cracking and condensation reactions of feedstock oils (such as crude oil and heavy oil) at high temperatures. If not removed in time, it can lead to a decrease in the heat transfer efficiency of the furnace tubes, a surge in energy consumption, and even cause localized overheating and scaling blockage of the furnace tubes. In severe cases, it may cause safety accidents such as furnace tube rupture. Therefore, the coke removal device is a key supporting facility for ensuring the long-term stable and efficient operation of oil refineries.

[0003] An existing coke removal device for an oil refinery furnace involves precisely inserting the coke removal components into the furnace during operation. The furnace is then started to rotate, and the mechanical rotational force generated by the furnace is used to scrape and polish the coke adhering to the furnace wall with cleaning blades or brushes, thereby achieving the purpose of coke removal.

[0004] However, existing cutting tools use a fixed design with a non-adjustable diameter. This means that when dealing with oil refineries of different sizes and specifications, the tool diameter cannot be flexibly adjusted according to the actual space inside the furnace to adapt to diverse decoking needs, thus affecting the decoking effect and efficiency. Furthermore, the rigid fixed structure of the cutting tools makes it difficult for them to adaptively adjust to the actual condition of the furnace tube inner wall during the decoking process. This rigid structure makes it easy for the cutting tools to continuously and excessively rub against one side of the furnace tube inner wall. Over time, this could potentially cause scratches on the furnace tube wall, or even lead to thinning of the wall thickness, seriously affecting the safety and service life of the oil refinery. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a coking removal device for oil refineries, which can flexibly adjust the diameter of the coking removal components to adapt to the furnace walls of oil refineries with different inner diameters, and adaptively buffer to avoid excessive friction and scratching between the blades and the furnace tubes. It can meet the diverse coking removal needs of oil refineries, has strong versatility and adaptability, and helps enterprises expand their markets and enhance their product competitiveness.

[0006] The objective of this utility model is achieved through the following technical solution: A coking removal device for an oil refinery furnace includes a base, a lifting assembly mounted on the base, a fixed platform mounted on the lifting assembly, a telescopic assembly mounted on the fixed platform, and a coking removal assembly mounted at the output end of the telescopic assembly. The lifting assembly is used to drive the fixed platform to move, and the telescopic assembly is used to drive the coking removal assembly to move inside the oil refinery furnace. The desiccant removal assembly includes a fixed housing installed at the output end of the telescopic assembly, multiple sets of movable rods slidably connected to the inside of the fixed housing, a fixing pin fixedly connected to the movable rod, a sliding sleeve slidably connected to the movable rod, a spring installed between the movable rod and the sliding sleeve, a scraper fixedly connected to the sliding sleeve, and a diameter-changing assembly installed on the fixed housing. The diameter-changing assembly is used to drive the movable rod and the fixing pin to move.

[0007] In one optional embodiment, the variable diameter assembly includes a rotating shaft rotatably connected inside a fixed housing, a drive disk fixedly connected to one end of the rotating shaft, a worm gear fixedly connected to the other end of the rotating shaft, a third motor installed inside the fixed housing, and a worm installed at the output end of the third motor. The worm meshes with the worm gear, and the third motor is used to drive the worm to rotate.

[0008] In one optional embodiment, the drive disk has multiple sets of arc-shaped grooves, and the fixing pin is movably connected to the inner side of the drive disk through the arc-shaped grooves. When the drive disk rotates, the fixing pin moves within the arc-shaped grooves.

[0009] In one optional embodiment, the lifting assembly includes two sets of scissor rods mounted on the base, a fixed rod mounted on a sliding end of one side of the scissor rod, a bearing seat mounted on the base, a rotating rod rotatably connected in the bearing seat, a connecting rod mounted on the rotating rod and the fixed rod, a first motor mounted on the base, and a transmission assembly mounted on the output end of the first motor and the rotating rod. The fixed ends of both ends of the scissor rods are respectively fixedly connected to the base and the fixed platform, and the sliding ends of both ends of the scissor rods are respectively slidably connected to the base and the fixed platform. The first motor drives the rotating rod to rotate through the transmission assembly.

[0010] In one optional embodiment, the connecting rod includes a first connecting rod fixedly connected to both ends of the rotating rod and a second connecting rod rotatably connected to the other end of the first connecting rod, with the other end of the second connecting rod rotatably connected to the outside of the fixed rod.

[0011] In one optional embodiment, the transmission assembly includes two sets of sprockets respectively fixedly connected to the output end of the first motor and the outside of the rotating rod, and a chain drivingly connected to the outside of the two sets of sprockets.

[0012] In one optional embodiment, the telescopic assembly includes a guide sleeve fixedly connected to a fixed platform, a second motor fixedly connected to the fixed platform, a threaded rod fixedly connected to the output end of the second motor, and a slide rod threadedly connected to the outside of the threaded rod. The threaded rod is rotatably connected to the inside of the guide sleeve, and one side of the slide rod is fixedly connected to the fixed housing. The second motor is used to drive the threaded rod to rotate.

[0013] In one optional embodiment, a groove is provided on the guide sleeve, and the slide rod is slidably connected to the inner side of the guide sleeve through the groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model can flexibly adjust the diameter of the coking component to adapt to the furnace wall of oil refinery with different inner diameters. It has an adaptive buffer to avoid excessive friction and scratching between the blade and the furnace tube, and can meet the diverse coking needs of oil refinery. It has strong versatility and adaptability, which helps enterprises expand the market and enhance product competitiveness. 2. The lifting component of this utility model can drive the fixed platform and the telescopic component and the coke cleaning component above it to rise and fall in the vertical direction, and adjust the height of the coke cleaning component to meet the coke cleaning needs of oil refinery furnaces of different heights. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a coke removal device for an oil refining furnace; Figure 2 A cross-sectional schematic diagram of a coke removal device for an oil refining furnace; Figure 3 A three-dimensional structural diagram of the lifting component of a coke removal device for an oil refinery furnace; Figure 4 A cross-sectional schematic diagram of the lifting assembly of a coking device for an oil refining furnace; Figure 5 A cross-sectional schematic diagram of a variable diameter component of a coking device for an oil refining furnace; Figure 6 A cross-sectional view of the fixed outer shell, movable rod, fixing pin, spring, sliding sleeve and scraper assembly of a coke removal device for an oil refining furnace; Figure 7 This is a cross-sectional structural diagram of a coke removal device for an oil refining furnace, comprising a movable rod, a fixed pin, a spring, a sliding sleeve, and a scraper.

[0016] Explanation of reference numerals in the attached drawings: 1. Base; 2. Fixed platform; 301. Scissor linkage; 302. Fixed end; 303. Sliding end; 304. Fixed rod; 305. Bearing seat; 306. Rotating rod; 307. First connecting rod; 308. Second connecting rod; 309. First motor; 310. Sprocket; 311. Chain; 401. Guide sleeve; 402. Second motor; 403. Threaded rod; 404. Slide rod; 501. Fixed outer shell; 502. Drive disc; 503. Rotating shaft; 504. Worm gear; 505. Third motor; 506. Worm; 507. Movable rod; 508. Fixed pin; 509. Spring; 510. Sliding sleeve; 511. Scraper. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0018] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, the internal connection of two elements, or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0021] Please refer to Figures 1-7 A coking removal device for an oil refinery furnace includes a base 1, a lifting assembly mounted on the base 1, a fixed platform 2 mounted on the lifting assembly, a telescopic assembly mounted on the fixed platform 2, and a coking removal assembly mounted at the output end of the telescopic assembly. The lifting assembly is used to drive the fixed platform 2 to move, and the telescopic assembly is used to drive the coking removal assembly to move inside the oil refinery furnace. The desiccant removal assembly includes a fixed housing 501 installed at the output end of the telescopic assembly, multiple sets of movable rods 507 slidably connected to the inside of the fixed housing 501, a fixing pin 508 fixedly connected to the movable rods 507, a sliding sleeve 510 slidably connected to the movable rods 507, a spring 509 installed between the movable rods 507 and the sliding sleeve 510, a scraper 511 fixedly connected to the sliding sleeve 510, and a diameter-changing assembly installed on the fixed housing 501. The diameter-changing assembly is used to drive the movable rods 507 and the fixing pins 508 to move.

[0022] In a preferred embodiment of this utility model, the lifting assembly is activated, driving the fixed platform 2 to move vertically, which in turn drives the telescopic assembly and the coking removal assembly installed on the fixed platform 2 to rise and fall synchronously, adjusting the height alignment of the coking removal assembly with the refinery furnace; the telescopic assembly is activated, driving the coking removal assembly, including the fixed outer shell 501, to extend into or out of the refinery furnace horizontally, controlling the cleaning depth of the coking removal assembly in the furnace; in the coking removal assembly, the variable diameter assembly drives the movable rod 507 and the fixed pin 508 to slide inside the fixed outer shell 501, driving the sliding sleeve 510 and the scraper 511 to extend and retract radially; at the same time, the spring 509 between the movable rod 507 and the sliding sleeve 510 provides a preload force, making the scraper 511 tightly adhere to the inner wall of the refinery furnace, and then the refinery furnace is started to rotate, finally scraping off the coking scale in the furnace by the movement of the scraper 511.

[0023] In a preferred embodiment of this utility model, the variable diameter assembly includes a rotating shaft 503 rotatably connected within a fixed housing 501, a drive disc 502 fixedly connected to one end of the rotating shaft 503, a worm gear 504 fixedly connected to the other end of the rotating shaft 503, a third motor 505 mounted inside the fixed housing 501, and a worm 506 mounted at the output end of the third motor 505. The worm 506 meshes with the worm gear 504, and the third motor 505 drives the worm 506 to rotate. When the third motor 505 starts, its output... The output end drives the worm 506 to rotate. The worm 506 meshes with the worm wheel 504 fixed at one end of the rotating shaft 503, converting the rotation of the worm 506 into the rotation of the worm wheel 504, which in turn drives the rotating shaft 503 to rotate synchronously within the fixed housing 501. The drive disc 502 at the other end of the rotating shaft 503 rotates with the rotating shaft 503. Through the cooperation between the drive disc 502 and the fixed pin 508, the fixed pin 508 and the movable rod 507 are driven to move, ultimately realizing the change of diameter of the coke removal component to adapt to oil refining furnaces with different inner diameters.

[0024] In a preferred embodiment of this utility model, the drive disk 502 has multiple sets of arc-shaped grooves. The fixing pin 508 is movably connected to the inner side of the drive disk 502 through the arc-shaped grooves. When the drive disk 502 rotates, the fixing pin 508 moves in the arc-shaped grooves. The fixing pin 508 slides along the groove in the arc-shaped grooves. Due to the radial offset design of the arc-shaped grooves, the movable rod 507 is pulled or pushed to make radial extension and retraction movements inside the fixed housing 501, thereby realizing the diameter adjustment of the scraper 511.

[0025] In a preferred embodiment of this utility model, the lifting assembly includes two sets of scissor links 301 mounted on the base 1, a fixed rod 304 mounted on a sliding end 303 on one side of the scissor links 301, a bearing seat 305 mounted on the base 1, a rotating rod 306 rotatably connected within the bearing seat 305, a connecting rod mounted on the rotating rod 306 and the fixed rod 304, a first motor 309 mounted on the base 1, and a transmission assembly mounted on the output end of the first motor 309 and the rotating rod 306. The fixed ends 302 at both ends are fixedly connected to the base 1 and the fixed platform 2 respectively. The sliding ends 303 at both ends of the scissor rod 301 are slidably connected to the base 1 and the fixed platform 2 respectively. The first motor 309 drives the rotating rod 306 to rotate through the transmission assembly. When the first motor 309 starts, it transmits power to the rotating rod 306 through the transmission assembly, causing the rotating rod 306 to rotate in the bearing seat 305. When the rotating rod 306 rotates, it drives the connecting rod on it to move. The connecting rod pulls or pushes the fixed rod 304 to make horizontal linear motion. The fixed rod 304 is fixedly connected to the sliding end 303 on one side of the scissor rod 301. When the fixed rod 304 moves, it drives the sliding end 303 to slide on the base 1 / fixed platform 2. Since the fixed ends 302 at both ends of the scissor rod 301 are fixed on the base 1 and the fixed platform 2 respectively, the sliding end 303 causes the scissor rod 301 to expand or contract, which ultimately drives the fixed platform 2 and the components above it to rise and fall, so as to adapt to the needs of coke scale cleaning in different height areas of the oil refinery.

[0026] In a preferred embodiment of this utility model, the connecting rod includes a first connecting rod 307 fixedly connected to both ends of the rotating rod 306 and a second connecting rod 308 rotatably connected to the other end of the first connecting rod 307. The other end of the second connecting rod 308 is rotatably connected to the outside of the fixed rod 304. The first connecting rods 307 at both ends of the rotating rod 306 rotate synchronously with the rotating rod 306. The first connecting rod 307 drives the second connecting rod 308 to swing through the rotational connection. The other end of the second connecting rod 308 is rotatably connected to the fixed rod 304. Therefore, the swing of the second connecting rod 308 is converted into the horizontal linear movement of the fixed rod 304, thereby driving the sliding end 303 of the scissor connecting rod 301 to move.

[0027] In a preferred embodiment of this utility model, the transmission assembly includes two sets of sprockets 310 respectively fixedly connected to the output end of the first motor 309 and the outside of the rotating rod 306, and a chain 311 drivingly connected to the outside of the two sets of sprockets 310. After the first motor 309 is started, its output end drives one set of sprockets 310 to rotate. Since the two sets of sprockets 310 are respectively fixed to the output end of the first motor 309 and the outside of the rotating rod 306, and are drivenly connected by the chain 311, the rotation of the sprocket 310 on the side of the first motor 309 is transmitted to the sprocket 310 on the side of the rotating rod 306 through the chain 311, and finally drives the rotating rod 306 to rotate synchronously in the bearing seat 305.

[0028] Another embodiment based on the transmission component: Other structures in existing technologies can also be used, such as synchronous toothed belts and synchronous pulleys; by replacing the chain 311 with a synchronous toothed belt and the sprocket 310 with a synchronous pulley, the advantages are smooth transmission, no meshing impact and noise of chain 311 transmission, lower operating noise, higher transmission accuracy, no need for frequent lubrication and maintenance, and longer service life, which is especially suitable for scenarios with high requirements for transmission smoothness and environmental cleanliness.

[0029] In a preferred embodiment of this utility model, the telescopic assembly includes a guide sleeve 401 fixedly connected to the fixed platform 2, a second motor 402 fixedly connected to the fixed platform 2, a threaded rod 403 fixedly connected to the output end of the second motor 402, and a sliding rod 404 threadedly connected to the outside of the threaded rod 403. The threaded rod 403 is rotatably connected to the inside of the guide sleeve 401, and one side of the sliding rod 404 is fixedly connected to the fixed housing 501. The second motor 402 is used to drive the threaded rod 403 to rotate. When the second motor 402 is started, its output end drives the threaded rod 403 to rotate inside the guide sleeve 401. The sliding rod 404 is threadedly connected to the threaded rod 403. The rotation of the threaded rod 403 causes the sliding rod 404 to have a tendency to move along the axial direction of the threaded rod 403. Since the sliding rod 404 is fixedly connected to the fixed housing 501, the sliding of the sliding rod 404 along the guide sleeve 401 drives the desiccant removal assembly to move horizontally synchronously, realizing the extension or retraction of the desiccant removal assembly.

[0030] In a preferred embodiment of this utility model, a groove is provided on the guide sleeve 401, and the slide rod 404 is slidably connected to the inner side of the guide sleeve 401 through the groove, which restricts the movement direction of the slide rod 404, prevents the slide rod 404 from rotating synchronously with the threaded rod 403, ensures that the slide rod 404 only moves in a straight line in the horizontal direction, and ensures the stability of the expansion and contraction of the desiccant removal assembly.

[0031] During operation, the first motor 309 of the lifting assembly is activated, and power is transmitted to the rotating rod 306 through the two sets of sprockets 310 and chain 311 of the transmission assembly, causing the rotating rod 306 to rotate within the bearing seat 305. The rotating rod 306 drives the first connecting rod 307 and the second connecting rod 308 of the connecting rod to swing, thereby pulling the fixed rod 304 to move horizontally. The fixed rod 304 is fixed to the sliding end 303 of the scissor connecting rod 301, and the sliding end 303 slides with the fixed rod 304 on the base 1 and the fixed platform 2, causing the fixed ends 302 of the scissor connecting rod 301 to move horizontally. The components, fixed to base 1 and fixed platform 2 respectively, expand or retract, ultimately driving the fixed platform 2 and the telescopic and coke-removing components above it to rise and fall vertically until the coke-removing components are aligned with the area to be cleaned in the refinery furnace. The second motor 402 of the telescopic component is then activated, its output driving the threaded rod 403 to rotate within the guide sleeve 401. The sliding rod 404, threadedly connected to the threaded rod 403, is prevented from moving with the threaded rod 403 by the circumferential limitation of the guide sleeve 401's groove. The slide bar 404 can only slide horizontally along the groove; the slide rod 404 is fixed to the fixed housing 501 of the coking removal assembly, so the linear movement of the slide rod 404 drives the entire coking removal assembly to extend into or out of the refinery furnace, precisely controlling the cleaning depth of the coking removal assembly in the furnace to ensure coverage of the coking scale area to be cleaned; the third motor 505 is started, and its output end drives the worm gear 506 to rotate; the worm gear 506 meshes with the worm wheel 504, transmitting the rotational power to the rotating shaft 503, causing the rotating shaft 503 to rotate within the fixed housing 501; the drive disc 502 at the other end of the rotating shaft 503 rotates synchronously, and the arc groove on the drive disc 502 drives the fixed pin inserted into the groove. 508 slides radially, and the fixed pin 508 is fixed to the movable rod 507. Therefore, the movable rod 507 extends and retracts radially inside the fixed housing 501 with the fixed pin 508. The sliding sleeve 510 and scraper 511 on the movable rod 507 move synchronously. At the same time, the spring 509 between the movable rod 507 and the sliding sleeve 510 provides preload to ensure that the scraper 511 fits tightly against the inner wall of the oil refinery to adapt to different furnace diameters. When the scraper 511 fits against the furnace wall, the oil refinery is started to rotate. Using the mechanical rotation force generated by it, the scraper 511 scrapes off the coke attached to the inner wall of the furnace. By continuously controlling the extension component to extend, the oil refinery can be cleaned at different depths.

[0032] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations will be apparent to those skilled in the art without actually departing from the scope and spirit of the claims, such as variations in the size, dimensions, structure, shape and proportion of the various elements, their installation arrangement, the materials used, their color, orientation, etc.

[0033] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A coke removal device for an oil refinery furnace, comprising a base (1); characterized in that: It also includes a lifting assembly installed on the base (1), a fixed platform (2) installed on the lifting assembly, a telescopic assembly installed on the fixed platform (2), and a coking removal assembly installed at the output end of the telescopic assembly. The lifting assembly is used to drive the fixed platform (2) to move, and the telescopic assembly is used to drive the coking removal assembly to move inside the oil refining furnace. The desiccant removal assembly includes a fixed housing (501) installed at the output end of the telescopic assembly, multiple sets of movable rods (507) slidably connected to the inside of the fixed housing (501), a fixing pin (508) fixedly connected to the movable rods (507), a sliding sleeve (510) slidably connected to the movable rods (507), a spring (509) installed between the movable rods (507) and the sliding sleeve (510), a scraper (511) fixedly connected to the sliding sleeve (510), and a diameter-changing assembly installed on the fixed housing (501). The diameter-changing assembly is used to drive the movable rods (507) and the fixing pins (508) to move.

2. The coking device for an oil refinery furnace according to claim 1, characterized in that: The variable diameter assembly includes a rotating shaft (503) rotatably connected inside a fixed housing (501), a drive disk (502) fixedly connected to one end of the rotating shaft (503), a worm gear (504) fixedly connected to the other end of the rotating shaft (503), a third motor (505) installed inside the fixed housing (501), and a worm (506) installed at the output end of the third motor (505). The worm (506) meshes with the worm gear (504), and the third motor (505) is used to drive the worm (506) to rotate.

3. The coking device for an oil refinery furnace according to claim 2, characterized in that: Multiple sets of arc-shaped grooves are provided on the drive disk (502). The fixing pin (508) is movably connected to the inner side of the drive disk (502) through the arc-shaped grooves. When the drive disk (502) rotates, the fixing pin (508) moves in the arc-shaped groove.

4. The coking device for an oil refinery furnace according to claim 1, characterized in that: The lifting assembly includes two sets of scissor rods (301) mounted on the base (1), a fixed rod (304) mounted on the sliding end (303) on one side of the scissor rod (301), a bearing seat (305) mounted on the base (1), a rotating rod (306) rotatably connected in the bearing seat (305), a connecting rod mounted on the rotating rod (306) and the fixed rod (304), a first motor (309) mounted on the base (1), and a transmission assembly mounted on the output end of the first motor (309) and the rotating rod (306). The fixed ends (302) at both ends of the scissor rod (301) are fixedly connected to the base (1) and the fixed platform (2), respectively. The sliding ends (303) at both ends of the scissor rod (301) are slidably connected to the base (1) and the fixed platform (2), respectively. The first motor (309) drives the rotating rod (306) to rotate through the transmission assembly.

5. The coke removal device for an oil refinery furnace according to claim 4, characterized in that: The connecting rod includes a first connecting rod (307) fixedly connected to both ends of the rotating rod (306) and a second connecting rod (308) rotatably connected to the other end of the first connecting rod (307). The other end of the second connecting rod (308) is rotatably connected to the outside of the fixed rod (304).

6. The coking device for an oil refinery furnace according to claim 4, characterized in that: The transmission assembly includes two sets of sprockets (310) fixedly connected to the output end of the first motor (309) and the outside of the rotating rod (306), respectively, and a chain (311) connected to the outside of the two sets of sprockets (310).

7. The coking device for an oil refinery furnace according to claim 1, characterized in that: The telescopic assembly includes a guide sleeve (401) fixedly connected to the fixed platform (2), a second motor (402) fixedly connected to the fixed platform (2), a threaded rod (403) fixedly connected to the output end of the second motor (402), and a slide rod (404) threadedly connected to the outside of the threaded rod (403). The threaded rod (403) is rotatably connected to the inside of the guide sleeve (401), and one side of the slide rod (404) is fixedly connected to the fixed housing (501). The second motor (402) is used to drive the threaded rod (403) to rotate.

8. The coking device for an oil refinery furnace according to claim 7, characterized in that: The guide sleeve (401) has a groove, and the slide rod (404) is slidably connected to the inside of the guide sleeve (401) through the groove.

Images