A calcined petroleum coke sampling device

Abstract

The utility model belongs to the technical field of petroleum coke sampling, especially a kind of calcined petroleum coke sampling equipment, it include: calcinator, the side of calcinator is equipped with sampling port;Sampling mechanism is used to sample petroleum coke sample in calcinator, the sampling mechanism includes the support plate being arranged at sampling port, the side wall of support plate close to calcinator is rotatably connected with reciprocating lead screw, threaded block is threadedly connected on reciprocating lead screw, sampling plate is equipped on the circumferential wall of threaded block, sampling tube is equipped on sampling plate.The utility model is equipped with axial movement mechanism, in sampling process, open first motor, drive reciprocating lead screw to rotate, make threaded block reciprocating horizontal displacement along reciprocating lead screw, the petroleum coke of different depth in calcinator is sampled, improve the comprehensiveness and universality of subsequent petroleum coke detection result, improve the detection accuracy of each performance in petroleum coke.

Description

Technical Field

[0001] This utility model belongs to the field of petroleum coke sampling technology, and in particular relates to a sampling device for calcined petroleum coke. Background Technology

[0002] Petroleum coke is a byproduct of petroleum refining. It is a solid carbonaceous substance formed by the thermal cracking or calcination of heavy oil (such as asphalt or other petroleum residues) at high temperatures. Its main component is carbon, containing small amounts of hydrogen, oxygen, sulfur, and metallic impurities. During the production and processing of petroleum coke, calcination is often necessary to remove volatile substances and impurities, making it more suitable for the high-temperature, high-intensity demands of industrial production. After calcination, samples of the calcined petroleum coke are taken to test whether it meets standards.

[0003] However, existing sampling equipment for calcined petroleum coke, such as the one disclosed in Chinese publication CN115931452A, can simultaneously sample petroleum coke that is unevenly distributed in all directions within the calcining furnace, but the following technical problems still exist during the sampling process:

[0004] During the sampling process, it was impossible to sample and test petroleum coke at different depths in the calcining furnace, resulting in the subsequent petroleum coke test results still lacking comprehensiveness and universality, affecting the testing of various properties of petroleum coke.

[0005] During the sampling process, petroleum coke particles are irregular in shape, vary in size, and contain a lot of fine powder. When these irregular particles enter the sampler, they intertwine and stack together, which easily causes blockage. Existing sampling equipment lacks anti-blocking mechanisms for petroleum coke, making it impossible to avoid blockage and affecting the sampling efficiency of petroleum coke. Utility Model Content

[0006] The purpose of this invention is to address the problems mentioned in the background art by providing a post-calcined petroleum coke sampling device capable of sampling petroleum coke from different depths within the calcining furnace and from different positions along the radial direction of the calcining furnace.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A sampling device for calcined petroleum coke includes:

[0009] A calcining furnace, wherein a sampling port is provided on one side of the calcining furnace;

[0010] A sampling mechanism is used to sample petroleum coke samples inside a calcining furnace. The sampling mechanism includes a support plate disposed at the sampling port. A reciprocating screw is rotatably connected to the side wall of the support plate near the calcining furnace. A threaded block is threaded onto the reciprocating screw. A sampling plate is disposed on the peripheral side wall of the threaded block. A sampling tube is disposed on the sampling plate. One end of the sampling tube is connected to a feed cylinder. A guide box is disposed on the side wall of the support plate. The guide box is connected to the sampling tube. A pump is fixedly connected to the outer wall of the guide box. The input port of the pump is connected to the guide box. The output port of the pump is connected to a storage box.

[0011] An axial movement mechanism is used to move the sampling plate back and forth along the reciprocating screw axis during the sampling process.

[0012] A radial movement mechanism is used to move the sampling tube radially back and forth along the reciprocating screw during the sampling process;

[0013] The vibration mechanism is used to vibrate the feed cylinder to prevent petroleum coke from clogging during the sampling process.

[0014] Preferably, the axial movement mechanism includes a first gear fixedly connected to the reciprocating screw, a first motor fixedly connected to the side wall of the support plate away from the calcining furnace, the output end of the first motor fixedly connected to the reciprocating screw, a limit rod fixedly connected to the side wall of the support plate near the calcining furnace, the limit rod being slidably connected to the threaded block, and a rotating assembly also provided on the side wall of the support plate for synchronously driving the sampling plate to rotate when the sampling plate reciprocates along the axial direction of the reciprocating screw.

[0015] Preferably, the rotating assembly includes a transmission gear rotatably connected to the side wall of the support plate, a gear ring rotatably connected to the side wall of the support plate, the two sides of the transmission gear meshing with a first gear and the gear ring respectively, a connecting rod fixedly connected between the gear ring and the guide box, a first annular groove opened on the support plate, the guide box slidingly connected to the first annular groove along a circumferential trajectory, a telescopic rod provided between the connecting rod and the sampling plate, a second annular groove opened on the peripheral side wall of the threaded block, and the sampling plate slidingly connected to the second annular groove along a circumferential trajectory.

[0016] Preferably, the radial movement mechanism includes a control box fixedly connected to the side wall of the sampling plate. A second motor is fixedly connected inside the control box. A drive rod is fixedly connected to the output end of the second motor. An incomplete gear is fixedly connected to the drive rod. A transmission rod is rotatably connected to the inner wall of the control box. A second gear that periodically meshes with the incomplete gear is fixedly connected to the transmission rod. A take-up roller is fixedly connected to the transmission rod. A traction rope is wound on the take-up roller. A groove is provided on the side wall of the sampling plate. A slider is slidably connected in the groove. The sampling tube passes through the slider. The end of the traction rope away from the take-up roller passes through the sampling plate and is fixedly connected to the slider. A return spring is provided between the slider and the inner wall of the groove.

[0017] Preferably, the sampling tube is made of ceramic composite material.

[0018] Preferably, the vibration mechanism includes a telescopic push plate fixedly connected to the drive rod; a sliding plate is slidably connected to the inner top wall of the control box in the horizontal direction; a first spring is provided between the sliding plate and the inner wall of the control box; two guide rods are fixedly connected to the inner wall of the feed cylinder; a moving block is slidably connected through the two guide rods; two first hinge seats are provided on the moving block; a high-temperature resistant rubber ring is sleeved on the peripheral side wall of the feed cylinder; a second hinge seat is provided on the high-temperature resistant rubber ring at a position corresponding to the two first hinge seats; a connecting rod is provided between the two first hinge seats and the corresponding second hinge seats; a vertical rod is slidably connected to the outer wall of the control box in the horizontal direction; the vertical rod is slidably connected through the moving block; and a fixed rod is fixedly connected between the vertical rod and the sliding plate.

[0019] Preferably, the inner walls of both sides of the high-temperature resistant rubber ring adjacent to the second hinge seat are fixedly connected to the feed cylinder.

[0020] Preferably, an adjustment mechanism is provided between the sampling tube and the control box for adjusting the vibration intensity according to the blockage of the petroleum coke. The adjustment mechanism includes a discharge cylinder disposed inside the guide box, which is fixedly connected to the sampling tube. A through groove is provided on the side wall of the discharge cylinder, and a rotating shaft is rotatably connected in the through groove. Multiple rotating plates arranged in a circumferential array are fixedly connected to the rotating shaft. One end of the rotating shaft extends outside the through groove and is fixedly connected to an adjustment block. An adjustment groove is provided inside the adjustment block, and a centrifugal block is slidably connected in the adjustment groove. A second spring is provided between the centrifugal block and the inner wall of the adjustment groove. A varistor is provided on the inner wall of the adjustment groove on the side away from the second spring. The telescopic push plate includes a fixed cylinder fixedly connected to the transmission rod and a push plate slidably connected to the inner wall of the fixed cylinder. Two electromagnets are provided between the push plate and the inner wall of the fixed cylinder. When the two electromagnets are energized, like poles repel each other. A third spring is provided between the two electromagnets, and the two electromagnets are connected in series with an external power supply through a varistor.

[0021] Preferably, arc-shaped baffles are fixedly connected to the two side walls of the through groove, and the distance between two adjacent rotating plates among the multiple rotating plates is less than the arc length of the arc-shaped baffle.

[0022] A sampling method applied to the above-mentioned calcined petroleum coke sampling equipment includes the following steps:

[0023] S1. Sampling and testing: Turn on the extraction pump and extract the petroleum coke in the calcining furnace into the feed box through the feed cylinder and sampling pipe. Then, discharge the petroleum coke in the feed box into the storage box. The staff will check whether the petroleum coke in the storage box is qualified.

[0024] S2. Axial movement processing: Start the first motor to drive the reciprocating screw to rotate, so that the threaded block moves horizontally along the reciprocating screw, and further drives the sampling tube to move horizontally along the axial direction of the reciprocating screw to sample petroleum coke at different depths in the calcining furnace.

[0025] S3. Rotation process: During the rotation of the reciprocating screw, the gear ring will be driven to rotate through the first gear and the transmission gear, which will further drive the connecting rod and the telescopic rod on it to perform circumferential motion, so that the sampling tube can perform circumferential motion to sample petroleum coke in different directions in the calcining furnace.

[0026] S4. Radial movement processing: Turn on the second motor to make the drive rod rotate. Through the incomplete gear and the second gear, the transmission rod rotates periodically, causing the winding roller to rotate periodically and winding the traction rope. Through the reset spring, the slider moves back and forth, causing one side of the sampling tube to move back and forth, and sampling of petroleum coke at different positions along the radial direction of the calcining furnace.

[0027] S5. Vibration anti-blocking treatment: When the drive rod rotates, it will drive the telescopic push plate to rotate, thereby periodically pushing the slide plate. The slide plate drives the vertical rod to move periodically through the fixed rod. Since the slide plate quickly returns to its original position under the elastic force of the first spring when the telescopic push plate rotates to the point where it no longer contacts the slide plate, it can impact the feed cylinder by stretching the high-temperature resistant rubber ring and then suddenly releasing it.

[0028] S6. Force Adjustment Process: During the sampling process, the flow of petroleum coke will cause the rotating plate to rotate, which in turn will cause the rotating shaft to rotate, and further drive the adjusting block to rotate. The centrifugal force of the centrifugal block in the adjusting block will provide feedback on the blockage of petroleum coke. The greater the blockage of petroleum coke, the lower the sampling efficiency of petroleum coke. This results in a greater impact force of the high-temperature resistant rubber ring on the outer wall of the feed cylinder when it resets, and a greater vibration force of the feed cylinder. The vibration force can be adjusted in real time according to the blockage of petroleum coke.

[0029] Compared with existing technologies, the advantages of this post-calcined petroleum coke sampling equipment are:

[0030] 1. This utility model, by setting an axial movement mechanism, activates the first motor during the sampling process, drives the reciprocating screw to rotate, and causes the threaded block to reciprocate horizontally along the reciprocating screw, thereby sampling petroleum coke at different depths in the calcining furnace. This improves the comprehensiveness and universality of subsequent petroleum coke test results and enhances the accuracy of testing various properties of petroleum coke.

[0031] 2. By setting up a rotating component, the reciprocating screw rotates, and the gear ring is driven to rotate through the first gear and the transmission gear. This allows the sampling tube to move in a circular motion synchronously with the sampling plate during the reciprocating horizontal displacement along the axial direction of the reciprocating screw, ensuring the sampling effect of petroleum coke in all directions in the calcining furnace. At the same time, no additional drive source is required, saving equipment manufacturing and operating costs.

[0032] 3. This utility model, by setting a radial movement mechanism, activates the second motor during the sampling process, causing the drive rod to rotate. Through the incomplete gear and the second gear, the transmission rod rotates periodically, causing the winding roller to rotate periodically, winding the traction rope. Under the elastic force of the return spring, the slider moves back and forth, sampling petroleum coke at different positions along the radial direction of the calcining furnace, further improving the comprehensiveness and universality of the sampling.

[0033] 4. This utility model incorporates a vibration mechanism. As the drive rod rotates, it drives the telescopic push plate to rotate, periodically pushing the slide plate. The slide plate, via a fixed rod, drives the vertical rod to move periodically. Under the limiting action of the guide rod on the moving block, the moving block is moved horizontally closer to the feed cylinder. By stretching and then suddenly releasing the high-temperature resistant rubber ring, the elastic restoring force of the high-temperature resistant rubber ring impacts the feed cylinder, causing it to vibrate and disrupting the accumulation structure of the petroleum coke. This prevents blockage of the petroleum coke during sampling and ensures efficient petroleum coke sampling.

[0034] 5. This utility model, by setting up a force adjustment mechanism, will cause the rotating plate to rotate during the sampling process of petroleum coke flow, thereby causing the rotating shaft to rotate, and further causing the adjustment block to rotate. The magnitude of the centrifugal force of the centrifugal block in the adjustment block will provide feedback on the blockage of petroleum coke. When the degree of blockage of petroleum coke is greater, the force of the high-temperature resistant rubber ring hitting the outer wall of the feed cylinder during reset is greater. When the blockage first appears, the vibration is performed with a lower force to prevent excessive vibration from damaging the equipment. As the blockage develops, the vibration force is gradually increased to make the blocked petroleum coke easier to shake off. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0036] Figure 2 This is a partial structural schematic diagram of the sampling mechanism in this utility model;

[0037] Figure 3 This is a partial sectional view of the present invention;

[0038] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0039] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0040] Figure 6 yes Figure 5 The diagram at point C.

[0041] In the diagram: 1. Calcination furnace; 11. Sampling port; 2. Sampling mechanism; 21. Support plate; 22. Reciprocating screw; 23. Threaded block; 24. Sampling plate; 25. Sampling tube; 26. Feed cylinder; 27. Guide box; 28. Extraction pump; 3. Axial movement mechanism; 31. First gear; 32. First motor; 33. Limiting rod; 34. Rotating assembly; 341. Transmission gear; 342. Gear ring; 343. Connecting rod; 344. First annular groove; 345. Telescopic rod; 346. Second annular groove; 4. Radial movement mechanism; 41. Control box; 42. Second motor; 43. Drive rod; 44. Incomplete gear; 45. Transmission rod; 4 6. Second gear; 47. Take-up roller; 48. Traction rope; 49. Slide groove; 410. Sliding block; 5. Vibration mechanism; 51. Telescopic push plate; 52. Slide plate; 53. First spring; 54. Guide rod; 55. Moving block; 56. First hinge seat; 57. High-temperature resistant rubber ring; 58. Second hinge seat; 59. Connecting rod; 510. Vertical rod; 511. Fixed rod; 6. Adjustment mechanism; 61. Discharge cylinder; 62. Through groove; 63. Rotating shaft; 64. Rotating plate; 65. Adjusting block; 66. Adjusting groove; 67. Centrifugal block; 68. Second spring; 69. Varistor; 610. Push plate; 611. Electromagnet; 612. Third spring. Detailed Implementation

[0042] The following embodiments are for illustrative purposes only and are not intended to limit the scope of this invention.

[0043] Example: Refer to Figures 1 to 6 A sampling device for calcined petroleum coke, comprising:

[0044] A calcining furnace 1 is provided with a sampling port 11 on one side;

[0045] Sampling mechanism 2 is used to sample petroleum coke samples in calcining furnace 1. Sampling mechanism 2 includes a support plate 21 set at sampling port 11. A reciprocating screw 22 is rotatably connected to the side wall of the support plate 21 near the calcining furnace 1. A threaded block 23 is threadedly connected to the reciprocating screw 22. A sampling plate 24 is provided on the peripheral side wall of the threaded block 23. A sampling tube 25 is provided on the sampling plate 24. One end of the sampling tube 25 is connected to the feed cylinder 26. A guide box 27 is provided on the side wall of the support plate 21. The guide box 27 is connected to the sampling tube 25. A pump 28 is fixedly connected to the outer wall of the guide box 27. The input port of the pump 28 is connected to the guide box 27. The output port of the pump 28 is connected to the storage box.

[0046] Specifically, the extraction pump 28 has a large suction force, which ensures that the petroleum coke can be extracted from the calcining furnace 1 into the sampling tube 25.

[0047] Before sampling, the reciprocating screw 22, sampling plate 24 and sampling tube 25 on the support plate 21 need to be inserted into the calcining furnace 1, so that the support plate 21 is fixed on the side wall of the calcining furnace 1 near the sampling port 11, keeping it coaxial with the calcining furnace 1. This fixing can be done by two clamping plates close to each other or by screwing bolts (rotatably connected to the support plate 21) into nuts (fixed to the side wall of the calcining furnace 1), or other methods can be used, as long as the support plate 21 is coaxial with the calcining furnace 1. There are no restrictions here. Since the clamping work here is a very common technique, it will not be described in detail.

[0048] During sampling, the extraction pump 28 is turned on, and the petroleum coke in the calcining furnace 1 is extracted into the feed box 27 through the feed cylinder 26 and the sampling pipe 25. The petroleum coke in the feed box 27 is then discharged into the storage box, and the staff checks whether the petroleum coke in the storage box is qualified.

[0049] An axial moving mechanism 3 is used to move the sampling plate 24 back and forth along the reciprocating screw 22 during the sampling process. The axial moving mechanism 3 includes a first gear 31 fixedly connected to the reciprocating screw 22. A first motor 32 is fixedly connected to the side wall of the support plate 21 away from the calcining furnace 1. The output end of the first motor 32 is fixedly connected to the reciprocating screw 22. A limit rod 33 is fixedly connected to the side wall of the support plate 21 close to the calcining furnace 1. The limit rod 33 is slidably connected to the threaded block 23. A rotating assembly 34 is also provided on the side wall of the support plate 21 to synchronously drive the sampling plate 24 to rotate when the sampling plate 24 moves back and forth along the reciprocating screw 22.

[0050] Specifically, the first motor 32 adopts PWM (Pulse Width Modulation) speed control. At the start of sampling, the first motor 32 is started with a 50% PWM duty cycle, causing the reciprocating screw 22 to rotate at a low speed, slowly driving the sampling tube 25 into the calcining furnace 1. During axial sampling, the PWM duty cycle is gradually adjusted according to the preset sampling depth range, reaching a maximum of 80%, corresponding to a motor speed of 150-200 r / min. The forward and reverse rotation times of the first motor 32 are set according to the sampling requirements, with each forward rotation lasting 30-60 seconds and the reverse rotation lasting 20-40 seconds, ensuring that the sampling tube 25 can fully sample at different depths.

[0051] To address the problem in existing technologies that cannot sample and test petroleum coke at different depths in a calcining furnace, resulting in a lack of comprehensiveness and generalizability in subsequent petroleum coke testing results, this invention addresses this issue by incorporating an axial movement mechanism 3. During sampling, a first motor 32 is activated, driving a reciprocating screw 22 to rotate. This causes a threaded block 23 to reciprocate horizontally along the reciprocating screw 22. A limiting rod 33 restricts the threaded block 23, ensuring it can only move axially along the reciprocating screw 22 without rotating with it. This further drives the sampling plate 24 and its sampling tube 25 to reciprocate horizontally along the axial direction of the reciprocating screw 22, thus sampling petroleum coke at different depths within the calcining furnace 1. This improves the comprehensiveness and generalizability of subsequent petroleum coke testing results and enhances the accuracy of testing various properties of the petroleum coke.

[0052] The rotating assembly 34 includes a transmission gear 341 rotatably connected to the side wall of the support plate 21, a gear ring 342 rotatably connected to the side wall of the support plate 21, the two sides of the transmission gear 341 respectively meshing with the first gear 31 and the gear ring 342, a connecting rod 343 fixedly connected between the gear ring 342 and the guide box 27, a first annular groove 344 opened on the support plate 21, the guide box 27 slidingly connected to the first annular groove 344 along a circumferential trajectory, a telescopic rod 345 provided between the connecting rod 343 and the sampling plate 24, a second annular groove 346 opened on the peripheral side wall of the threaded block 23, and the sampling plate 24 slidingly connected to the second annular groove 346 along a circumferential trajectory.

[0053] It is worth mentioning that, by setting up a rotating component 34, during the rotation of the reciprocating screw 22, the first gear 31 and the transmission gear 341 drive the gear ring 342 to rotate, which in turn drives the connecting rod 343 and its telescopic rod 345 to perform circular motion. This causes the sampling plate 24, the guide box 27, and the sampling tube 25 between them to perform circular motion. As the sampling tube 25 performs reciprocating horizontal displacement along the axial direction of the reciprocating screw 22, the sampling plate 24 and the sampling tube 25 perform circular motion synchronously, ensuring the sampling effect of petroleum coke in all directions within the calcining furnace 1. At the same time, no additional drive source is required, saving equipment manufacturing and operating costs.

[0054] Radial movement mechanism 4 is used to move the sampling tube 25 radially along the reciprocating screw 22 during the sampling process. Radial movement mechanism 4 includes a control box 41 fixedly connected to the side wall of the sampling plate 24. A second motor 42 is fixedly connected inside the control box 41. A drive rod 43 is fixedly connected to the output end of the second motor 42. An incomplete gear 44 is fixedly connected to the drive rod 43. A transmission rod 45 is rotatably connected to the inner wall of the control box 41. A second gear 46 that periodically meshes with the incomplete gear 44 is fixedly connected to the transmission rod 45. A take-up roller 47 is fixedly connected to the transmission rod 45. A traction rope 48 is wound on the take-up roller 47. A slide groove 49 is opened on the side wall of the sampling plate 24. A slider 410 is slidably connected in the slide groove 49. The sampling tube 25 passes through the slider 410. The end of the traction rope 48 away from the take-up roller 47 passes through the sampling plate 24 and is fixedly connected to the slider 410. A return spring is provided between the slider 410 and the inner wall of the slide groove 49.

[0055] Specifically, the second motor 42 also employs PWM speed control. During startup, the drive rod 43 rotates slowly with a PWM duty cycle of 30% to avoid excessive startup shock. During radial sampling, the PWM duty cycle is adjusted between 40% and 60%, corresponding to a second motor 42 speed of 80-120 r / min. The meshing cycle between the incomplete gear 44 and the second gear 46 is 3-5 seconds, meaning the winding roller 47 performs a winding and releasing action every 3-5 seconds, causing the sampling tube 25 to reciprocate at a fixed frequency in the radial direction of the calcining furnace 1, achieving sampling at different positions.

[0056] Specifically, the sampling tube 25 is made of ceramic composite material. The sampling tube 25 made of ceramic composite material can withstand the high temperature environment and chemical corrosion of petroleum coke. At the same time, the gap of the sampling tube 25 is filled with silicon, which makes it tough and has the ability to bend under stress, so as to meet the bending requirements of the sampling tube 25 when it moves along the axial and radial directions of the reciprocating screw 22.

[0057] Furthermore, the ceramic composite material used in sampling tube 25 is a silicon carbide ceramic matrix composite material, whose main components include silicon carbide (SiC) particle reinforcing phase and ceramic matrix phase. The content of silicon carbide particles accounts for 60%-70%, and the average particle size is between 5-10μm. This particle size distribution can ensure both the high strength and good toughness of the material. The ceramic matrix phase is mainly composed of alumina (Al2O3) and yttrium oxide (Y2O3), with the alumina content being 25%-30% and the yttrium oxide content being 3%-5%. The addition of yttrium oxide can effectively improve the high temperature stability and thermal shock resistance of the material.

[0058] Furthermore, the performance parameters of this ceramic composite material are as follows: compressive strength reaches 800-1000 MPa, capable of withstanding the extrusion of petroleum coke during sampling without cracking; temperature resistance limit is 1600-1800℃, meeting the high-temperature environment requirements within the calcining furnace; thermal conductivity is 20-30 W / (m·K), and this excellent thermal conductivity helps the sampling tube dissipate heat quickly in high-temperature environments, maintaining its structural stability. In addition, the silicon material filling the internal gaps of the sampling tube 25 is nano-sized silica aerogel with a porosity exceeding 90%, which not only gives the sampling tube 25 good bending ability under stress but also further improves its thermal insulation performance.

[0059] It should also be noted that this utility model, by setting a radial moving mechanism 4, turns on the second motor 42, causing the drive rod 43 to rotate. Through the incomplete gear 44 and the second gear 46, the transmission rod 45 rotates periodically, causing the winding roller 47 to rotate periodically, winding the traction rope 48, and pulling the slider 410 to move in the slide groove 49 through the traction rope 48. When the incomplete gear 44 is not engaged with the second gear 46, the elastic force of the return spring causes the slider 410 to move in the opposite direction in the slide groove 49, thereby driving the slider 410 to move back and forth, driving one side of the sampling tube 25 to move back and forth, and sampling petroleum coke at different positions along the radial direction of the calcining furnace 1, further improving the comprehensiveness and universality of sampling.

[0060] Vibration mechanism 5 is used to vibrate the feed cylinder 26 to prevent petroleum coke from clogging during sampling. Vibration mechanism 5 includes a telescopic push plate 51 fixedly connected to the drive rod 43. A slide plate 52 is slidably connected to the inner top wall of the control box 41 in the horizontal direction. A first spring 53 is provided between the slide plate 52 and the inner wall of the control box 41. Two guide rods 54 are fixedly connected to the inner wall of the feed cylinder 26. A moving block 55 is slidably connected through the two guide rods 54. The moving block 55 is provided with two first springs 53. The hinge seat 56 and the feed cylinder 26 are fitted with high-temperature resistant rubber rings 57. The high-temperature resistant rubber rings 57 are provided with second hinge seats 58 at positions corresponding to the two first hinge seats 56. A connecting rod 59 is provided between the two first hinge seats 56 and the corresponding second hinge seats 58. A vertical rod 510 is slidably connected to the outer wall of the control box 41 in the horizontal direction. The vertical rod 510 is slidably connected to the moving block 55. A fixing rod 511 is fixedly connected between the vertical rod 510 and the slide plate 52.

[0061] Specifically, the inner walls on both sides of the high-temperature resistant rubber ring 57 adjacent to the second hinge seat 58 are fixedly connected to the feed cylinder 26, thus fixing the high-temperature resistant rubber ring 57 on the outer wall of the feed cylinder 26 and preventing the high-temperature resistant rubber ring 57 from falling off the feed cylinder 26.

[0062] To address the problem that existing technologies lack anti-clogging mechanisms for petroleum coke, which cannot prevent clogging and thus affect the sampling efficiency of petroleum coke, this invention incorporates a vibration mechanism 5. As the drive rod 43 rotates, it drives the telescopic push plate 51 to rotate, thereby periodically pushing the slide plate 52. The slide plate 52, through the fixed rod 511, drives the vertical rod 510 to move periodically. Under the limiting action of the guide rod 54 on the moving block 55, the moving block 55 is driven to make a horizontal displacement relative to the feed cylinder 26, thus moving closer to the feed cylinder 26. This, in turn, affects the sampling efficiency of the first hinge seat 56. Under the action of the second hinge seat 58 and the connecting rod 59, the movable positions on both sides of the high-temperature resistant rubber ring 57 are driven away from each other. Since the sliding plate 52 is quickly reset under the elastic force of the first spring 53 when the telescopic push plate 51 rotates to not contact the sliding plate 52, the elastic restoring force of the high-temperature resistant rubber ring 57 can be used to impact the feed cylinder 26 by stretching the high-temperature resistant rubber ring 57 and then suddenly releasing it, causing it to vibrate and destroy the accumulation structure of petroleum coke, preventing the petroleum coke from clogging during sampling and feeding, and ensuring the sampling efficiency of petroleum coke.

[0063] Specifically, the high-temperature resistant rubber ring 57 is made of silicone rubber, which can be used for a long time in high-temperature environments and is not easy to age, ensuring that the high-temperature resistant rubber ring 57 can be used in the sampling of calcined petroleum coke.

[0064] An adjustment mechanism 6 is also provided between the sampling tube 25 and the control box 41 to adjust the vibration intensity according to the blockage of the petroleum coke. The adjustment mechanism 6 includes a discharge cylinder 61 located inside the guide box 27. The discharge cylinder 61 is fixedly connected to the sampling tube 25. A through groove 62 is opened on the side wall of the discharge cylinder 61. A rotating shaft 63 is rotatably connected in the through groove 62. Multiple rotating plates 64 arranged in a circular array are fixedly connected to the rotating shaft 63. One end of the rotating shaft 63 extends outside the through groove 62 and is fixedly connected to an adjustment block 65. An adjustment groove 66 is opened inside the adjustment block 65. A centrifugal block 67 is slidably connected inside the adjustment groove 66. A second spring 68 is provided between the centrifugal block 67 and the inner wall of the adjustment groove 66. A varistor 69 is provided on the inner wall of the adjustment groove 66 away from the second spring 68. The telescopic push plate 51 includes a fixed cylinder fixedly connected to the transmission rod 45 and a push plate 610 slidably connected to the inner wall of the fixed cylinder. Two electromagnets 611 are provided between the push plate 610 and the inner wall of the fixed cylinder. When the two electromagnets 611 are energized, like poles repel each other. A third spring 612 is provided between the two electromagnets 611, and the two electromagnets 611 are connected in series with an external power supply through the varistor 69.

[0065] Specifically, an external power supply with an output voltage of 24V and a power of 50W is selected, which has stable output characteristics and can provide reliable power support for electromagnet 611. A 2A rated current fuse is connected in series in the circuit to prevent excessive current from damaging electromagnet 611 and other electrical components in the event of a short circuit. Meanwhile, to ensure voltage stability, an LM7824 three-terminal regulator is connected in parallel between the power supply output terminal and the varistor to stabilize the power supply output voltage at 24V, preventing voltage fluctuations from affecting the magnetism of electromagnet 611.

[0066] Furthermore, a signal amplifier is included in the control circuit to amplify the weak electrical signal generated by the pressure change in the varistor 69, enabling the electromagnet 611 to respond more sensitively to changes in the petroleum coke blockage. Additionally, a reverse diode (model 1N4007) is connected in parallel across the electromagnet 611 to absorb the reverse electromotive force generated when the electromagnet is de-energized, protecting other components in the circuit from damage.

[0067] Specifically, arc-shaped baffles are fixedly connected to the two side walls of the through groove 62. The distance between two adjacent rotating plates 64 is less than the arc length of the arc-shaped baffle. Therefore, it is ensured that the two adjacent rotating plates 64 can always close the arc-shaped baffle during the rotation process, so as to prevent petroleum coke from overflowing from the through groove 62 and affecting the rotation of the rotating plate 64.

[0068] Specifically, since the strength of the magnetism of the two electromagnets 611 is positively related to the magnitude of the current, the greater the current, the stronger the magnetism of the electromagnets 611. Therefore, when the current increases, the magnetic repulsion between the two electromagnets 611 will be greater.

[0069] Specifically, the resultant force between the electromagnet 611 and the third spring 612 is always much greater than the elastic force of the first spring 53, so as to avoid the first spring 53 affecting the extension degree of the push plate 610 in the telescopic push plate 51, so that the total length of the push plate 610, the fixed cylinder and its pushing distance to the slide plate 52 are only affected by the pressure-sensitive resistor 69.

[0070] Specifically, when the petroleum coke is not blocked, the rotation speed of the rotating plate 64 and the rotating shaft 63 makes the centrifugal force of the centrifugal block 67 greater than the elastic force of the second spring 68, so that the centrifugal block 67 no longer applies pressure to the pressure-sensitive resistor 69. At this time, an open circuit is formed between the electromagnet 611 and the external power supply. When the telescopic push plate 51 rotates, it pushes the slide plate 52 to move with the minimum amplitude, so that the high-temperature resistant rubber ring 57 is stretched to the minimum each time, avoiding damage to the sampling equipment.

[0071] In addition, during the sampling process, petroleum coke enters the guide box 27 through the feed cylinder 26, sampling pipe 25, and discharge cylinder 61. During this process, the flow of petroleum coke will drive the rotating plate 64 to rotate, thereby driving the rotating shaft 63 to rotate, which in turn drives the adjusting block 65 to rotate. The centrifugal force of the centrifugal block 67 in the adjusting block 65 provides feedback on the blockage of petroleum coke. The greater the blockage of petroleum coke, the lower the sampling efficiency, the lower the flow velocity of petroleum coke in the sampling pipe 25 and discharge cylinder 61, the lower the rotation speed of the rotating plate 64 and rotating shaft 63, and the smaller the centrifugal force of the centrifugal block 67. Since the direction of the centrifugal force of the centrifugal block 67 is opposite to the direction of the elastic force of the second spring 68, the decrease in centrifugal force will lead to a greater pressure applied by the second spring 68 to the pressure-sensitive resistor 69, causing the two electromagnets 6 The smaller the resistance of the circuit containing 11, the larger the current, which in turn makes the magnetic repulsion between the two electromagnets 611 greater, pushing the push plate 610 to extend further from the fixed cylinder. This results in a greater range of movement of the sliding plate 52 when the telescopic push plate 51 rotates, and a greater stretching of the high-temperature rubber ring 57. Consequently, the high-temperature rubber ring 57 impacts the outer wall of the feed cylinder 26 with greater force when it resets, leading to a greater vibration force in the feed cylinder 26. This allows for vibration at a lower intensity when blockage first appears, preventing excessive vibration from damaging the equipment. As the blockage progresses, the vibration intensity is gradually increased, making it easier to dislodge the blocked petroleum coke. The vibration intensity can be adjusted in real time according to the blockage status of the petroleum coke, reducing damage to the equipment while ensuring the anti-blocking effect of the petroleum coke.

[0072] In actual use, no-load testing is required after the equipment is installed. First, turn on the first motor 32 and observe whether the rotation of the reciprocating screw 22 is smooth and whether the movement of the threaded block 23 on the reciprocating screw 22 is smooth and without any jamming. Then, turn on the second motor 42 and check whether the transmission of the drive rod 43, the incomplete gear 44, the second gear 46, and the take-up roller 47 is normal, and whether the traction rope 48 will entangle during the winding and unwinding process. At the same time, observe the movement of the slider 410 in the slide groove 49, and adjust the preload of the return spring so that the slider can move flexibly back and forth within the specified range.

[0073] For the vibration mechanism 5 and the adjustment mechanism 6, after starting the equipment, different degrees of petroleum coke blockage are simulated. By changing the material flow rate in the feed cylinder 26, the rotation of the rotating plate 64, the pushing effect of the telescopic pusher 51 on the slide plate 52, and the vibration of the feed cylinder 26 are observed. Based on the actual vibration effect, the initial position of the centrifugal block 67 in the adjustment block 65 is finely adjusted to optimize the sensitivity of the adjustment mechanism.

[0074] A sampling method applied to the above-mentioned calcined petroleum coke sampling equipment includes the following steps:

[0075] S1. Sampling and testing: Start the extraction pump 28 and extract the petroleum coke in the calcining furnace 1 into the feed box 27 through the feed cylinder 26 and sampling pipe 25. Then, discharge the petroleum coke in the feed box 27 into the storage box. The staff will check whether the petroleum coke in the storage box is qualified.

[0076] S2. Axial movement processing: Turn on the first motor 32 to drive the reciprocating screw 22 to rotate, so that the threaded block 23 reciprocates horizontally along the reciprocating screw 22, and further drives the sampling tube 25 to reciprocate horizontally along the axial direction of the reciprocating screw 22 to sample petroleum coke at different depths in the calcining furnace 1.

[0077] S3. Rotation process: During the rotation of the reciprocating screw 22, the gear ring 342 will be driven to rotate through the first gear 31 and the transmission gear 341, which will further drive the connecting rod 343 and its telescopic rod 345 to perform circumferential motion, so that the sampling tube 25 performs circumferential motion to sample petroleum coke in different directions in the calcining furnace 1.

[0078] S4. Radial movement processing: Turn on the second motor 42 to make the drive rod 43 rotate. Through the incomplete gear 44 and the second gear 46, the transmission rod 45 rotates periodically, causing the winding roller 47 to rotate periodically and winding the traction rope 48. Through the reset spring, the slider 410 moves back and forth, causing one side of the sampling tube 25 to move back and forth, and sampling of petroleum coke at different positions along the radial direction of the calcining furnace 1.

[0079] S5. Vibration anti-blocking treatment: When the drive rod 43 rotates, it will drive the telescopic push plate 51 to rotate, thereby periodically pushing the slide plate 52. The slide plate 52 drives the vertical rod 510 to move periodically through the fixed rod 511. Since the slide plate 52 quickly resets under the elastic force of the first spring 53 when the telescopic push plate 51 rotates to the point where it no longer contacts the slide plate 52, it can impact the feed cylinder 26 by stretching the high-temperature resistant rubber ring 57 and then suddenly releasing it.

[0080] S6. Force Adjustment Process: During the sampling process, the flow of petroleum coke will cause the rotating plate 64 to rotate, thereby causing the rotating shaft 63 to rotate, which in turn causes the adjusting block 65 to rotate. The centrifugal force of the centrifugal block 67 in the adjusting block 65 provides feedback on the blockage of petroleum coke. The greater the blockage of petroleum coke, the lower the sampling efficiency of petroleum coke. This results in a greater impact force of the high-temperature resistant rubber ring 57 on the outer wall of the feed cylinder 26 when it resets, and a greater vibration force of the feed cylinder 26. The vibration force can be adjusted in real time according to the blockage of petroleum coke.

[0081] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling device for calcined petroleum coke, characterized in that, include: A calcining furnace (1) is provided with a sampling port (11) on one side. The sampling mechanism (2) is used to sample petroleum coke samples in the calcining furnace (1). The sampling mechanism (2) includes a support plate (21) set at the sampling port (11). A reciprocating screw (22) is rotatably connected to the side wall of the support plate (21) near the calcining furnace (1). A threaded block (23) is threadedly connected to the reciprocating screw (22). A sampling plate (24) is provided on the peripheral side wall of the threaded block (23). A sampling tube (25) is provided on the sampling plate (24). One end of the sampling tube (25) is connected to the feed cylinder (26). A guide box (27) is provided on the side wall of the support plate (21). The guide box (27) is connected to the sampling tube (25). A pump (28) is fixedly connected to the outer wall of the guide box (27). The input port of the pump (28) is connected to the guide box (27). The output port of the pump (28) is connected to the storage box. An axial moving mechanism (3) is used to make the sampling plate (24) move axially along the reciprocating screw (22) during the sampling process; Radial movement mechanism (4) is used to make the sampling tube (25) move radially back and forth along the reciprocating screw (22) during the sampling process; The vibration mechanism (5) is used to vibrate the feed cylinder (26) to prevent the petroleum coke from clogging during the sampling process.

2. The petroleum coke sampling device according to claim 1, characterized in that, The axial movement mechanism (3) includes a first gear (31) fixedly connected to the reciprocating screw (22). A first motor (32) is fixedly connected to the side wall of the support plate (21) away from the calcining furnace (1). The output end of the first motor (32) is fixedly connected to the reciprocating screw (22). A limit rod (33) is fixedly connected to the side wall of the support plate (21) close to the calcining furnace (1). The limit rod (33) is slidably connected to the threaded block (23). A rotating assembly (34) is also provided on the side wall of the support plate (21) for synchronously driving the sampling plate (24) to rotate when the sampling plate (24) moves back and forth along the axial direction of the reciprocating screw (22).

3. The petroleum coke sampling device according to claim 2, characterized in that, The rotating assembly (34) includes a transmission gear (341) rotatably connected to the side wall of the support plate (21). A toothed ring (342) is rotatably connected to the side wall of the support plate (21). The two sides of the transmission gear (341) mesh with the first gear (31) and the toothed ring (342) respectively. A connecting rod (343) is fixedly connected between the toothed ring (342) and the guide box (27). A first annular groove (344) is provided on the support plate (21). The guide box (27) is slidably connected to the first annular groove (344) along a circumferential trajectory. A telescopic rod (345) is provided between the connecting rod (343) and the sampling plate (24). A second annular groove (346) is provided on the peripheral side wall of the threaded block (23). The sampling plate (24) is slidably connected to the second annular groove (346) along a circumferential trajectory.

4. The sampling equipment for calcined petroleum coke according to claim 1, characterized in that, The radial movement mechanism (4) includes a control box (41) fixedly connected to the side wall of the sampling plate (24). A second motor (42) is fixedly connected inside the control box (41). A drive rod (43) is fixedly connected to the output end of the second motor (42). An incomplete gear (44) is fixedly connected to the drive rod (43). A transmission rod (45) is rotatably connected to the inner wall of the control box (41). A second gear (46) that periodically meshes with the incomplete gear (44) is fixedly connected to the transmission rod (45). A take-up roller (47) is fixedly connected to the transmission rod (45), and a traction rope (48) is wound on the take-up roller (47). A groove (49) is provided on the side wall of the sampling plate (24), and a slider (410) is slidably connected in the groove (49). The sampling tube (25) passes through the slider (410). One end of the traction rope (48) away from the take-up roller (47) passes through the sampling plate (24) and is fixedly connected to the slider (410). A return spring is provided between the slider (410) and the inner wall of the groove (49).

5. The petroleum coke sampling device according to claim 4, characterized in that, The sampling tube (25) is made of ceramic composite material.

6. The petroleum coke sampling device according to claim 4, characterized in that, The vibration mechanism (5) includes a telescopic push plate (51) fixedly connected to the drive rod (43). A sliding plate (52) is slidably connected to the inner top wall of the control box (41) in the horizontal direction. A first spring (53) is provided between the sliding plate (52) and the inner wall of the control box (41). Two guide rods (54) are fixedly connected to the inner wall of the feed cylinder (26). A moving block (55) is slidably connected through the two guide rods (54). Two first hinge seats (56) are provided on the moving block (55). The periphery of the feed cylinder (26) A high-temperature resistant rubber ring (57) is fitted on the wall. A second hinge seat (58) is provided on the high-temperature resistant rubber ring (57) at a position corresponding to the two first hinge seats (56). A connecting rod (59) is provided between the two first hinge seats (56) and the corresponding second hinge seats (58). A vertical rod (510) is slidably connected to the outer wall of the control box (41) in the horizontal direction. The vertical rod (510) is slidably connected to the moving block (55). A fixed rod (511) is fixedly connected between the vertical rod (510) and the sliding plate (52).

7. The petroleum coke sampling device according to claim 6, characterized in that, The inner walls of the two sides of the high-temperature resistant rubber ring (57) and the second hinge seat (58) are fixedly connected to the feed cylinder (26).

8. The petroleum coke sampling device according to claim 6, characterized in that, An adjustment mechanism (6) is provided between the sampling tube (25) and the control box (41) for adjusting the vibration intensity according to the blockage of the petroleum coke. The adjustment mechanism (6) includes a discharge cylinder (61) located inside the guide box (27). The discharge cylinder (61) is fixedly connected to the sampling tube (25). A through groove (62) is provided on the side wall of the discharge cylinder (61). A rotating shaft (63) is rotatably connected in the through groove (62). Multiple rotating plates (64) arranged in a circular array are fixedly connected to the rotating shaft (63). One end of the rotating shaft (63) extends outside the through groove (62) and is fixedly connected to an adjustment block (65). An adjustment groove (66) is provided inside the adjustment block (65). A centrifugal block (67) is slidably connected in the groove (66). A second spring (68) is provided between the centrifugal block (67) and the inner wall of the adjustment groove (66). A varistor (69) is provided on the inner wall of the adjustment groove (66) away from the second spring (68). The telescopic push plate (51) includes a fixed cylinder fixedly connected to the transmission rod (45) and a push plate (610) slidably connected to the inner wall of the fixed cylinder. Two electromagnets (611) are provided between the push plate (610) and the inner wall of the fixed cylinder. When the two electromagnets (611) are energized, their like poles repel each other. A third spring (612) is provided between the two electromagnets (611). The two electromagnets (611) are connected in series with an external power supply through the varistor (69).

9. The petroleum coke sampling device according to claim 8, characterized in that, Arc-shaped baffles are fixedly connected to the two side walls of the through groove (62), and the distance between two adjacent rotating plates (64) is less than the arc length of the arc-shaped baffle.

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