Petroleum coke calcining furnace with ash removal mechanism

Abstract

The utility model relates to the technical field of petroleum coke calcining furnaces, and discloses a petroleum coke calcining furnace with an ash removal mechanism, which comprises a furnace body, a hopper is rotatably arranged on the upper side of the furnace body, a rotating rod is arranged in the hopper, a material guide plate is slidably arranged outside the rotating rod through a sliding block, and the material guide plate is provided with an ash removal mechanism. A transverse rod is fixedly connected to the surface of the end, located on the lower side of the material guide plate, of the rotating rod, a swing rod is arranged at the end, away from the rotating rod, of the transverse rod, and through cooperation of the transverse rod, the sliding rod, the swing rod, the scraper and other structures, the scraper can synchronously conduct scraping and sweeping cleaning on the inner wall of the furnace body while rotary material distribution is conducted; complex driving and executing mechanisms such as an independent electric push rod and a circular ring plate do not need to be arranged, the overall structure of the furnace body is simplified, the manufacturing cost and the fault risk are reduced, continuous automatic operation of material distribution and cleaning at the same time is achieved, additional manual intervention on starting and stopping is not needed, and the intelligent level and the operation efficiency of equipment are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of petroleum coke calcining furnace technology, specifically to a petroleum coke calcining furnace with a ash removal mechanism. Background Technology

[0002] A calcining furnace is a thermal device used to heat-treat carbonaceous raw materials, such as petroleum coke and anthracite, at high temperatures to improve their properties. It is commonly used in ironmaking, rare metal recovery, catalyst production, environmental improvement, and the production of specialty chemicals. Petroleum coke calcination is a common industrial calcination process. To maintain uniform temperature and improve calcination efficiency, a dedicated petroleum coke calcination device is often used. To ensure that the petroleum coke is fully calcined, it is generally necessary to screen it first and then feed it evenly into the calcining furnace using a distributor.

[0003] In the prior art, Chinese utility model patent with publication number CN221840174U discloses a petroleum coke calcining furnace with high calcination efficiency. Although this prior art facilitates the cleaning of ash and slag from the inner wall of the furnace after calcination through the cooperation of the annular plate, electric push rod, and annular cleaning rod, in actual use, additional manual intervention and control are required to start the cleaning process when the inner wall of the furnace needs to be cleaned. This undoubtedly increases the number of work steps. Moreover, as a component combining precision mechanics and electricity, the electric push rod is subjected to harsh conditions of high temperature and high dust in the petroleum coke calcining furnace. A large amount of fine and abrasive coke dust can easily penetrate the gaps of the extension rod, the sealing parts, and the internal motor of the electric push rod, seriously damaging the operational reliability of the electric push rod and shortening its service life. In view of this, we propose a petroleum coke calcining furnace with a ash removal mechanism to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a petroleum coke calcining furnace with a ash-removing mechanism, thereby solving the problem of inconvenience in using some existing petroleum coke calcining furnaces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a petroleum coke calcining furnace with a ash-removing mechanism, comprising a furnace body, a hopper rotatably mounted on the upper side of the furnace body, a rotating rod disposed inside the hopper, a guide plate slidably mounted on the outside of the rotating rod via a slider, a crossbar fixedly connected to the surface of the rotating rod at one end below the guide plate, a swing rod disposed at the end of the crossbar away from the rotating rod, a scraper fixedly connected to the end of the swing rod away from the crossbar, a sliding groove provided inside the crossbar, a first adjusting mechanism disposed inside the sliding groove, a movable groove provided inside the swing rod, a second adjusting mechanism disposed inside the movable groove, and a driving mechanism disposed on the lower surface of the crossbar.

[0006] Preferably, the first adjusting mechanism includes a sliding rod, which is slidably sleeved inside a sliding groove. A threaded rod is rotatably connected inside the sliding groove, and the sliding rod is threadedly sleeved outside the threaded rod. One end of the sliding rod extends into the interior of the movable groove.

[0007] Preferably, the crossbar has a through groove inside, one end of the threaded rod rotates through the through groove, a knob is fixedly sleeved on the end of the threaded rod inside the through groove, and the surface of the knob has an anti-slip groove. A pressure plate is provided on the upper side of the crossbar, and an anti-slip rubber pad is fixedly connected to the lower surface of the pressure plate, and the anti-slip rubber pad is in contact with the surface of the knob.

[0008] Preferably, a corrugated rubber sleeve is fixedly connected between the crossbar and the swing arm.

[0009] Preferably, two guide rods are fixedly connected to the lower surface of the pressure plate, and two circular grooves are formed on the upper surface of the crossbar. The two guide rods slide through the interior of the two circular grooves respectively, and a first return spring is fixedly connected to the lower end of each of the two guide rods. The upper end of the first return spring is fixedly connected to the top wall of the circular groove, and the first return spring is movably sleeved on the outside of the guide rod.

[0010] Preferably, the second adjustment mechanism includes a rotating shaft, which is fixedly connected inside the movable groove, and one end of the sliding rod located inside the movable groove is rotatably sleeved on the outside of the rotating shaft, and the lower end of the rotating shaft is fixedly extended through the lower surface of the swing rod.

[0011] Preferably, the driving mechanism includes a fixed box, which is slidably connected to the lower surface of the crossbar, and one side of the fixed box extends to the lower side of the swing rod. The lower end of the rotating shaft rotatably penetrates into the interior of the fixed box. A worm gear is fixedly sleeved on one end of the rotating shaft inside the fixed box, and a worm is meshed with the outside of the worm gear. The worm is rotatably connected inside the fixed box.

[0012] Preferably, one end of the worm gear rotatably extends through the interior of the fixed box, and a handle is slidably fitted onto the end of the worm gear located outside the fixed box. A synchronization plate is fixedly connected to the end of the worm gear located inside the handle, and the synchronization plate is slidably connected inside the handle. A second return spring is fixedly connected between the synchronization plate and the inner wall of the handle, and the second return spring is movably fitted onto the outside of the worm gear. An annular friction pad is fixedly connected to the surface of the fixed box, and the annular friction pad abuts against the handle.

[0013] Compared with the prior art, this utility model provides a petroleum coke calcining furnace with a ash removal mechanism, which has the following beneficial effects:

[0014] 1. This petroleum coke calcining furnace with a dust removal mechanism, through the cooperation of crossbars, sliding rods, swing rods, scrapers, and other structures, can simultaneously scrape and clean the inner wall of the furnace while rotating and distributing the material. It eliminates the need for complex drive and execution mechanisms such as independent electric push rods and circular plates, which not only simplifies the overall structure of the furnace and reduces manufacturing costs and failure risks, but also realizes continuous automated operation of distributing and cleaning simultaneously. It requires no additional manual intervention for start-up and shutdown, significantly improving the intelligence level and operating efficiency of the equipment.

[0015] 2. This petroleum coke calciner with a ash removal mechanism, through the setting of the first and second adjustment mechanisms, can adjust the clamping force of the scraper. When facing stubborn coke layers with strong adhesion, the force can be increased to ensure the scraping effect, while the force can be reduced when facing normal floating ash. While ensuring the basic cleaning effect, it greatly reduces the mechanical wear on the refractory lining and extends the service life of the furnace body. In addition, by adjusting the tilt angle of the scraper, a smaller acute angle provides strong scraper cutting ability and low resistance, which is suitable for cleaning thin and hard deposits. A larger obtuse angle is suitable for scraping thick and soft deposits. Thus, it can be optimized for ash and slag with different characteristics, improving cleaning efficiency and effect and extending the service life of the scraper. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a petroleum coke calcining furnace with a ash removal mechanism according to the present invention.

[0017] Figure 2 This is a cross-sectional structural diagram of the furnace body of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a cross-sectional structural diagram of the crossbar of this utility model;

[0020] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0021] Figure 6 This is a cross-sectional view of the fixing box of this utility model.

[0022] In the diagram: 1. Furnace body; 2. Hopper; 3. Rotating rod; 4. Guide plate; 5. Crossbar; 6. Swinging rod; 7. Scraper; 8. Sliding groove; 9. Movable groove; 10. Sliding rod; 11. Threaded rod; 12. Through groove; 13. Rotating shaft; 14. Fixed box; 15. Corrugated rubber sleeve; 16. Worm gear; 17. Worm; 18. Annular friction pad; 19. Knob; 20. Pressure plate; 21. Anti-slip rubber pad; 22. Circular groove; 23. Guide rod; 24. First return spring; 25. Handle; 26. Synchronizing plate; 27. Second return spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 This utility model provides a technical solution: a petroleum coke calcining furnace with a dust removal mechanism, including a furnace body 1. A hopper 2 for feeding is rotatably installed on the upper side of the furnace body 1. A rotating rod 3 for rotating is provided inside the hopper 2. A guide plate 4 for guiding materials is slidably installed on the outside of the rotating rod 3 via a slider. A discharge port for discharging materials is opened on the horizontal plate surface of the guide plate 4. A crossbar 5 for support is fixedly connected to the surface of the rotating rod 3 at one end of the guide plate 4. A swing rod 6 for connection is provided at the end of the crossbar 5 away from the rotating rod 3. A scraper 7 for cleaning the inner wall of the furnace body 1 is fixedly connected to the end of the swing rod 6 away from the crossbar 5. A sliding groove 8 for sliding is opened inside the crossbar 5. A first adjustment mechanism is provided inside the sliding groove 8. An active groove 9 for movement is opened inside the swing rod 6. A second adjustment mechanism is provided inside the active groove 9. A driving mechanism is provided on the lower surface of the crossbar 5.

[0025] The first adjustment mechanism includes a sliding rod 10 for sliding, which is slidably sleeved inside the sliding groove 8. A threaded rod 11 for rotation is rotatably connected inside the sliding groove 8, and the sliding rod 10 is threadedly sleeved outside the threaded rod 11. One end of the sliding rod 10 extends into the interior of the movable groove 9. By rotating the threaded rod 11, the sliding rod 10 can be driven to slide inside the sliding groove 8, thereby driving the swing rod 6 and the scraper 7 to move. This allows for flexible adjustment of the force between the scraper 7 and the inner wall of the furnace body 1 according to the material characteristics. For coking layers or stubborn ash with strong adhesion, the force can be increased to ensure effective scraping and avoid incomplete cleaning that could form an insulating layer. For normal floating ash or when the furnace wall lining has been worn thin, the force can be reduced, significantly reducing mechanical wear and scratches on the refractory lining, significantly extending the service life of the furnace body 1, and reducing maintenance costs.

[0026] The crossbar 5 has a through groove 12 inside. One end of the threaded rod 11 rotates through the through groove 12. A knob 19 for turning is fixedly sleeved on the end of the threaded rod 11 inside the through groove 12. The surface of the knob 19 has an anti-slip groove. The threaded rod 11 can be rotated by the operator turning the knob 19. A pressure plate 20 for connection is provided on the upper side of the crossbar 5. An anti-slip rubber pad 21 for cooperating with the knob 19 is fixedly connected to the lower surface of the pressure plate 20. The anti-slip rubber pad 21 is in contact with the surface of the knob 19. When the pressure plate 20 is pressed down and the anti-slip rubber pad 21 is deformed and embedded in the anti-slip groove on the surface of the knob 19, the stability of the knob 19 can be effectively guaranteed by friction, and the automatic rotation of the knob 19 during the operation of the equipment can be prevented. In addition, by placing the pressure plate 20 on the upper side of the knob 19, the accumulation of materials on the outside of the knob 19 can also be effectively prevented.

[0027] A corrugated rubber sleeve 15 for connection and sealing is fixedly connected between the crossbar 5 and the swing rod 6. The corrugated rubber sleeve 15 further ensures the sealing of the sliding groove 8 and the movable groove 9, and the corrugated rubber sleeve 15 will also undergo corresponding deformation when the swing rod 6 moves.

[0028] Two sliding guide rods 23 are fixedly connected to the lower surface of the pressure plate 20. Two circular grooves 22 for sliding are opened on the upper surface of the crossbar 5. The two guide rods 23 slide through the interior of the two circular grooves 22 respectively. The lower ends of the two guide rods 23 are fixedly connected to a first return spring 24 for resetting the guide rods 23. The upper end of the first return spring 24 is fixedly connected to the top wall of the circular groove 22. The first return spring 24 is movably sleeved on the outside of the guide rods 23. By lifting the pressure plate 20 upward, the guide rods 23 can be driven to slide inside the circular grooves 22, thereby causing the first return spring 24 to produce elastic deformation. This not only ensures the stability of the movement of the pressure plate 20, but also ensures the stability of the pressure plate 20 after resetting, that is, the stability when the anti-slip rubber pad 21 and the knob 19 are in contact.

[0029] The second adjustment mechanism includes a rotating shaft 13 for rotation. The rotating shaft 13 is fixedly connected inside the movable groove 9, and one end of the sliding rod 10 located inside the movable groove 9 is rotatably sleeved outside the rotating shaft 13. The lower end of the rotating shaft 13 is fixedly inserted through the lower surface of the swing rod 6. By rotating the rotating shaft 13, the swing rod 6 can be driven to rotate outside the sliding rod 10, thereby driving the scraper 7 to swing, and finally adjusting the contact angle between the scraper 7 and the inner wall of the furnace body 1.

[0030] The drive mechanism includes a fixed box 14 for sliding, which is slidably connected to the lower surface of the crossbar 5. One side of the fixed box 14 extends to the lower side of the swing rod 6, and the fixed box 14 contacts the swing rod 6. The lower end of the rotating shaft 13 rotates through the interior of the fixed box 14. A worm gear 16 for rotation is fixedly sleeved at one end of the rotating shaft 13 inside the fixed box 14. A worm 17 for rotation is meshed with the outside of the worm gear 16. The worm 17 is rotatably connected inside the fixed box 14. The rotation of the worm 17 can drive the rotation of the worm gear 16, and the rotation of the worm gear 16 can drive the rotation of the rotating shaft 13.

[0031] By allowing the fixed box 14 and the crossbar 5 to slide together, the fixed box 14 can only slide in one direction, and the stability of the sliding can be effectively guaranteed.

[0032] One end of the worm gear 17 rotates through the interior of the fixed box 14. The end of the worm gear 17 located outside the fixed box 14 is slidably fitted with a handle 25 for easy gripping by the user. The end of the worm gear 17 located inside the handle 25 is fixedly connected to a synchronous plate 26 for sliding. The synchronous plate 26 is slidably connected inside the handle 25. A second return spring 27 for resetting the handle 25 is fixedly connected between the synchronous plate 26 and the inner wall of the handle 25. The second return spring 27 is movably fitted outside the worm gear 17. An annular friction pad 18 is fixedly connected to the surface of the fixed box 14. The annular friction pad 18 and the handle 25 are pressed together. With the help of the second return spring 27, it can be effectively ensured that the handle 25 can always be pressed against the annular friction pad 18, thereby preventing the handle 25 from rotating on its own. In addition, when the handle 25 is pulled, the handle 25 will slide outside the synchronous plate 26. At this time, the second return spring 27 will be compressed, and the handle 25 will no longer be pressed against the annular friction pad 18. Subsequently, the handle 25 drives the worm gear 17 to rotate.

[0033] In the above embodiments, a feeding mechanism is also provided in conjunction with the furnace body 1. The feeding mechanism facilitates the supply of materials and the rotation of the rotating rod 3. The feeding mechanism in this solution is the same as the prior art with announcement number CN221840174U. Since it is a known technical means in the field, it will not be described in detail here.

[0034] Working principle:

[0035] When in use, the petroleum coke calcining furnace with a ash removal mechanism can be operated by lifting the pressure plate 20, which causes the guide rod 23 to slide inside the circular groove 22. This causes the first return spring 24 to undergo elastic deformation. After the anti-slip rubber pad 21 and the knob 19 are separated, the operator can turn the knob 19 through the lower side of the through groove 12 to rotate the threaded rod 11. By rotating the threaded rod 11, the sliding rod 10 can slide inside the sliding groove 8, which in turn moves the swing rod 6 and the scraper 7. This allows for flexible adjustment of the force between the scraper 7 and the inner wall of the furnace body 1 according to the material characteristics. For coking layers with strong adhesion or stubborn ash, the force can be increased to ensure effective scraping and avoid incomplete cleaning that could form an insulating layer. For normal floating ash or when the furnace wall lining has been worn thin, the force can be reduced, which significantly reduces mechanical wear and scratches on the refractory lining, significantly extends the service life of the furnace body 1, and reduces maintenance costs.

[0036] In addition, the operator can pull the handle 25 outward to separate the handle 25 from the annular friction pad 18, and then rotate the handle 25 to drive the worm gear 17 to rotate. The rotation of the worm gear 17 drives the rotation of the worm wheel 16, which in turn drives the rotation of the rotating shaft 13. The rotation of the rotating shaft 13 drives the swing rod 6 to rotate outside the sliding rod 10, thereby causing the scraper 7 to swing. Ultimately, this adjusts the contact angle between the scraper 7 and the inner wall of the furnace body 1. If a smaller acute angle is used, the scraper is sharper and has a better cutting effect, which is suitable for cleaning thin, hard deposits with less scraping resistance and less required driving torque. If a larger obtuse angle is used, the scraper is more blunt and suitable for cleaning thick and soft deposits, avoiding material splashing.

[0037] In addition, in some extreme cases, the scraper 7 can even be adjusted to completely detach from the furnace body 1, temporarily switching to a pure material feeding mode, increasing operational flexibility.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A petroleum coke calcining furnace with dust cleaning mechanism, comprising a furnace body (1), characterized in that: The upper side of the furnace body (1) is rotatably provided with a hopper (2), the inside of the hopper (2) is provided with a rotating rod (3), the outside of the rotating rod (3) is slidably provided with a guide plate (4) through a sliding block, the surface of one end of the lower side of the guide plate (4) is fixedly connected with a cross rod (5), one end of the cross rod (5) away from the rotating rod (3) is provided with a swing rod (6), the end of the swing rod (6) away from the cross rod (5) is fixedly connected with a scraper (7), the inside of the cross rod (5) is provided with a sliding groove (8), the inside of the sliding groove (8) is provided with a first adjusting mechanism, the inside of the swing rod (6) is provided with a movable groove (9), the inside of the movable groove (9) is provided with a second adjusting mechanism, and the lower surface of the cross rod (5) is provided with a driving mechanism.

2. The petroleum coke calcination furnace with ash removal mechanism according to claim 1, characterized in that: The first adjusting mechanism comprises a sliding rod (10), the sliding rod (10) is slidably arranged in the sliding groove (8), a threaded rod (11) is rotatably connected to the inside of the sliding groove (8), and the sliding rod (10) is threadedly arranged on the outside of the threaded rod (11), and one end of the sliding rod (10) extends into the inside of the movable groove (9).

3. The petroleum coke calcination furnace with ash removal mechanism according to claim 2, characterized in that: The inside of the cross rod (5) is provided with a through groove (12), one end of the threaded rod (11) rotatably penetrates into the inside of the through groove (12), a knob (19) is fixedly arranged on one end of the threaded rod (11) in the through groove (12), the surface of the knob (19) is provided with an anti-skid groove, the upper side of the cross rod (5) is provided with a pressing plate (20), the lower surface of the pressing plate (20) is fixedly connected with an anti-skid rubber pad (21), and the anti-skid rubber pad (21) is in contact with the surface of the knob (19).

4. The petroleum coke calcination furnace with ash removal mechanism according to claim 3, characterized in that: The cross rod (5) and the swing rod (6) are fixedly connected with a corrugated rubber sleeve (15).

5. The petroleum coke calcination furnace with ash removal mechanism according to claim 4, characterized in that: The lower surface of the pressing plate (20) is fixedly connected with two guide rods (23), the upper surface of the cross rod (5) is provided with two circular grooves (22), the two guide rods (23) respectively slidably penetrate into the inside of the two circular grooves (22), the lower ends of the two guide rods (23) are fixedly connected with first return springs (24), the upper ends of the first return springs (24) and the top walls of the circular grooves (22) are fixedly connected, and the first return springs (24) are movably arranged on the outside of the guide rods (23).

6. The petroleum coke calcination furnace with ash removal mechanism according to claim 5, characterized in that: The second adjusting mechanism comprises a rotating shaft (13), the rotating shaft (13) is fixedly connected in the movable groove (9), one end of the sliding rod (10) in the movable groove (9) is rotatably arranged on the outside of the rotating shaft (13), and the lower end of the rotating shaft (13) penetrates out of the lower surface of the swing rod (6).

7. The petroleum coke calcination furnace with ash removal mechanism according to claim 6, characterized in that: The driving mechanism comprises a fixed box (14) which is slidingly connected to the lower surface of the cross bar (5), and one side of the fixed box (14) extends to the lower side of the swing bar (6), the lower end of the rotating shaft (13) is rotatably penetrated into the inside of the fixed box (14), and the end of the rotating shaft (13) in the inside of the fixed box (14) is fixedly sleeved with a worm wheel (16), the outside of the worm wheel (16) is meshingly connected with a worm (17), and the worm (17) is rotatably connected in the inside of the fixed box (14).

8. The petroleum coke calcination furnace with ash removal mechanism according to claim 7, characterized in that: One end of the worm (17) is rotatably penetrated out of the inside of the fixed box (14), the end of the worm (17) outside the fixed box (14) is slidingly sleeved with a handle (25), the end of the worm (17) in the inside of the handle (25) is fixedly connected with a synchronous plate (26), the synchronous plate (26) is slidingly connected in the inside of the handle (25), the second reset spring (27) is fixedly connected between the synchronous plate (26) and the inner wall of the handle (25), and the second reset spring (27) is movably sleeved on the outside of the worm (17), the surface of the fixed box (14) is fixedly connected with an annular friction pad (18), and the annular friction pad (18) is abuttingly connected with the handle (25).

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