Screening equipment for crushing petroleum coke

Abstract

The utility model relates to the technical field of petroleum coke production, in particular to screening equipment for petroleum coke crushing, a first motor is started to drive a cam to rotate, the cam is in contact with a supporting rod, so that the rotating cam continuously jacks up the supporting rod, the supporting rod enables a screen to vibrate up and down, and the screen is crushed. The vibrating screen can screen the petroleum coke on the vibrating screen, the remaining large petroleum coke can move towards the interior of the feeding pipe due to vibration of the screen and then enter the crushing and screening box from the top end of the feeding pipe again, and the screen screens the crushed petroleum coke again. The screened large petroleum coke can be continuously conveyed to the crushing roller again along the feeding pipe to be subjected to secondary crushing, the vibrating screen is used for directly screening before crushing and after crushing, then the large petroleum coke is conveyed to be crushed through the feeding pipe and the spiral feeding rod, and the effects of improving the screening effect before and after crushing and automatically carrying out secondary crushing are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum coke production, and particularly relates to a screening device for crushing petroleum coke. Background Technique

[0002] In the production of petroleum coke, crushing increases the specific surface area of petroleum coke, thereby improving its reaction activity, which is very important for industrial processes that require rapid and efficient reactions. After crushing, the volume of petroleum coke decreases, making it easier to transport and store, saving space and reducing costs.

[0003] The existing Chinese patent: A screening structure and a pre-calcination crusher for petroleum coke, patent number: CN219187089U, includes a feeding pipe which is inclined, the lower end of the feeding pipe is provided with a feeding pipe, the upper end of the feeding pipe is provided with a discharging pipe, and a spiral feeder is arranged in the feeding pipe; an aggregate box is arranged below the feeding pipe, a blanking hole is arranged on the side wall of the feeding pipe at the lower part, the blanking hole is communicated with the aggregate box, and a first discharging port is arranged at the bottom of the aggregate box; a pre-calcination crusher for petroleum coke includes a crushing box, a feeding hopper is arranged at the top of the crushing box, the feeding hopper is matched with the discharging pipe of the screening structure, a pair-roll crushing roller and a screen are arranged in the crushing box, and the screen is matched with a scraping plate. The utility model can screen petroleum coke before and after crushing respectively, avoid small-particle petroleum coke from being crushed again, improve the crushing efficiency, ensure the crushing effect, has a reasonable overall structure, is easy to operate, and the cooperation between the screen and the scraping plate improves the screening effect and working efficiency.

[0004] However, in the process of implementing the above technical solution, it is found that at least the following technical problems exist: In the above pre-calcination crusher for petroleum coke, the petroleum coke before crushing is screened through the blanking hole of the feeding pipe to avoid small-particle petroleum coke from being screened again. However, if the small-particle petroleum coke inside the feeding pipe is located at the center position of the feeding pipe, it cannot be screened out by the blanking hole, and the large-particle materials after being screened by the screen still need to be manually put into the feeding hopper for secondary crushing. Not only is the screening effect before crushing poor, but also manual feeding is required for secondary crushing. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a screening device for crushing petroleum coke, solving the technical problems of the above pre-calcination crusher for petroleum coke, screening the petroleum coke before crushing through the blanking hole of the feeding pipe to avoid small-particle petroleum coke from being screened again. However, if the small-particle petroleum coke inside the feeding pipe is located at the center position of the feeding pipe, it cannot be screened out by the blanking hole, and the large-particle materials after being screened by the screen still need to be manually put into the feeding hopper for secondary crushing. Not only is the screening effect before crushing poor, but also manual feeding is required for secondary crushing.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0009] A screening device for petroleum coke crushing includes a crushing and screening box. A screening mechanism is installed on the crushing and screening box. The screening mechanism includes a screen, a support rod, a first motor, and a cam. A feeding mechanism is installed at the side end of the crushing and screening box. The feeding mechanism includes a feeding pipe, a spiral feeding rod, a second motor, and a first bevel gear set. A crushing mechanism is installed on the crushing and screening box. The crushing mechanism includes a sliding frame, a crushing roller, a third motor, a second bevel gear set, and a threaded rod. A hopper is installed at the side end of the crushing and screening box. One end of the screen is rotatably connected to the crushing and screening box. The support rod is fixedly installed at the side end of the screen. The first motor is fixedly installed at the side end of the crushing and screening box. The cam is fixedly installed on the rotating shaft of the first motor. The screen is located inside the crushing and screening box. The cam contacts the support rod. The feeding pipe is fixedly installed at the side end of the crushing and screening box. The spiral feeding rod is rotatably installed inside the feeding pipe. The second motor is fixedly installed at the top of the crushing and screening box. The first bevel gear set is installed at the connection between the spiral feeding rod and the second motor. The sliding frame is slidably installed inside the crushing and screening box. The crushing roller is rotatably installed at the side end of the sliding frame. The third motor is fixedly installed at the side end of the sliding frame. The second bevel gear set is installed at the connection between the crushing roller and the third motor. The threaded rods are symmetrically rotatably installed on both sides of the crushing and screening box. The two threaded rods are respectively threadedly connected to both ends of the sliding frame.

[0010] Preferably, a blanking plate is fixedly installed inside the crushing and screening box.

[0011] Preferably, an aggregate box is slidably installed inside the crushing and screening box.

[0012] (III) Beneficial Effects

[0013] First, the vibrating screen can efficiently screen petroleum coke before and after crushing. The gradually narrowing shape of the screen is conducive to increasing the residence time of petroleum coke on the screen, which can ensure thorough screening. The large pieces of petroleum coke after screening will be directly sent to the crushing roller by the feeding pipe for crushing, achieving the effects of improving the screening effect before and after crushing and automatically performing secondary crushing.

[0014] Second, rotate the two threaded rods. Since the threaded rods are threadedly connected to the sliding frame, rotating the threaded rods can make the sliding frame slide inside the crushing and screening box, changing the distance between the crushing roller and the pressing plate inside the crushing and screening box. Adjusting the position of the crushing roller is completed by rotating the threaded rods, achieving the effect of being able to adjust the size of the crushed particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model and be implemented in accordance with the content of the description, the following is a detailed description of the preferred embodiment of the present utility model in conjunction with the accompanying drawings.

[0016] Figure 1 It is a structural diagram of the crushing and screening box of the present utility model;

[0017] Figure 2 It is a sectional structural diagram of the crushing and screening box of the present utility model;

[0018] Figure 3 For the present utility model Figure 1 The enlarged structural diagram at position A;

[0019] Figure 4 It is a structural diagram of the sliding frame of the present utility model;

[0020] Figure 5 It is a structural diagram of the screen mesh of the present utility model.

[0021] Legend: 1. Crushing and screening box; 2. Screen mesh; 3. Support rod; 4. First motor; 5. Cam; 6. Feeding pipe; 7. Screw feeding rod; 8. Second motor; 9. First bevel gear set; 11. Sliding frame; 12. Crushing roller; 13. Third motor; 14. Second bevel gear set; 15. Threaded rod; 16. Feeding plate; 17. Aggregate box. Specific implementation mode

[0022] In the embodiment of the present application, by providing a screening device for petroleum coke crushing, the above-mentioned pre-calcination crusher for petroleum coke is effectively solved. The pre-crushing petroleum coke is screened through the feeding holes of the feeding pipe, avoiding the re-screening of small-particle petroleum coke. However, if the small-particle petroleum coke located inside the feeding pipe is at the center position of the feeding pipe, it cannot be screened out through the feeding holes. Moreover, the large-particle materials after screening by the screen mesh still need to be manually put back into the feeding hopper for secondary crushing. Not only is the screening effect before crushing poor, but also manual feeding is required for secondary crushing. The vibrating screen mesh can efficiently screen the petroleum coke before and after crushing. The gradually narrowing shape of the screen mesh is beneficial to increasing the residence time of the petroleum coke on the screen mesh, which can ensure thorough screening. The large pieces of petroleum coke after screening will be directly sent to the crushing roller by the feeding pipe for crushing, achieving the effects of improving the screening effect before and after crushing and automatically performing secondary crushing. Rotate the two threaded rods. Since the threaded rods are threadedly connected to the sliding frame, rotating the threaded rods can make the sliding frame slide inside the crushing and screening box, changing the distance between the crushing roller and the rolling plate inside the crushing and screening box. By rotating the threaded rods, the position of the crushing roller is adjusted, achieving the effect of being able to adjust the size of the crushed particles. Embodiment

[0023] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, the technical solution in the embodiment of the present application effectively solves the above-mentioned pre-calcined petroleum coke crusher. The petroleum coke before crushing is screened through the feeding holes of the feeding pipe, avoiding the re-screening of small-particle petroleum coke. However, if the small-particle petroleum coke located inside the feeding pipe is at the center position of the feeding pipe, it cannot be screened out by the feeding holes. Moreover, the large-particle materials after screening by the screen mesh still need to be manually put back into the feeding hopper for secondary crushing. Not only is the screening effect before crushing poor, but also manual feeding is required for secondary crushing. The general idea is as follows:

[0024] In view of the problems existing in the prior art, the utility model provides a screening device for petroleum coke crushing, including a crushing and screening box 1. A screening mechanism is installed on the crushing and screening box 1. The screening mechanism includes a screen mesh 2, a support rod 3, a first motor 4 and a cam 5. A feeding mechanism is installed on the side end of the crushing and screening box 1. The feeding mechanism includes a feeding pipe 6, a spiral feeding rod 7, a second motor 8 and a first bevel gear set 9. A crushing mechanism is installed on the crushing and screening box 1. The crushing mechanism includes a sliding frame 11, a crushing roller 12, a third motor 13, a second bevel gear set 14 and a threaded rod 15. A hopper is installed on the side end of the crushing and screening box 1. One end of the screen mesh 2 is rotatably connected to the crushing and screening box 1.

[0025] The support rod 3 is fixedly installed on the side end of the screen mesh 2. The first motor 4 is fixedly installed on the side end of the crushing and screening box 1. The cam 5 is fixedly installed on the rotating shaft of the first motor 4. The screen mesh 2 is located inside the crushing and screening box 1. The cam 5 is in contact with the support rod 3. The feeding pipe 6 is fixedly installed on the side end of the crushing and screening box 1. The spiral feeding rod 7 is rotatably installed inside the feeding pipe 6. The second motor 8 is fixedly installed on the top end of the crushing and screening box 1. The first bevel gear set 9 is installed at the connection between the spiral feeding rod 7 and the second motor 8.

[0026] The sliding frame 11 is slidably installed inside the crushing and screening box 1. The crushing roller 12 is rotatably installed on the side end of the sliding frame 11. The third motor 13 is fixedly installed on the side end of the sliding frame 11. The second bevel gear set 14 is installed at the connection between the crushing roller 12 and the third motor 13. The threaded rod 15 is symmetrically rotatably installed on both sides of the crushing and screening box 1. The two threaded rods 15 are respectively threadedly connected to both ends of the sliding frame 11. A feeding plate 16 is fixedly installed inside the crushing and screening box 1. An aggregate box 17 is slidably installed inside the crushing and screening box 1.

[0027] Working principle:

[0028] First step, pour the petroleum coke into the hopper at the side end of the crushing and screening box 1. The vibration generated during the operation of the equipment will gradually shake the petroleum coke in the hopper into the interior of the crushing and screening box 1. The petroleum coke entering the interior of the crushing and screening box 1 will fall on the screen 2. The first motor 4 starts to drive the cam 5 to rotate. Since the cam 5 contacts the support rod 3, the rotating cam 5 will continuously push the support rod 3 upward. The support rod 3 thus causes the screen 2 to vibrate up and down. The vibrating screen 2 can screen the petroleum coke above, making the small-particle petroleum coke fall into the lower aggregate box 17. The remaining large-piece petroleum coke will move toward the inside of the feeding pipe 6 due to the vibration of the screen 2. The end of the screen 2 close to the feeding pipe 6 gradually narrows, which can slow down the speed of the petroleum coke entering the inside of the feeding pipe 6, increase the residence time of the petroleum coke on the screen 2, and improve the screening effect of the screen 2 on the petroleum coke. When the large-piece material enters the inside of the feeding pipe 6, the second motor 8 starts and drives the spiral feeding rod 7 to rotate clockwise through the first bevel gear set 9. The petroleum coke entering the inside of the feeding pipe 6 will be lifted to the top of the feeding pipe 6 under the action of the rotation of the spiral feeding rod 7, and then enter the crushing and screening box 1 again from the top of the feeding pipe 6. The third motor 13 drives the crushing roller 12 to rotate clockwise through the second bevel gear set 14. When the large-piece petroleum coke returns to the inside of the crushing and screening box 1, it will be first crushed into small particles by the rotating crushing roller 12. The crushed petroleum coke will slide down along the blanking plate 16 onto the screen 2. The screen 2 will screen the crushed petroleum coke again. The large-piece petroleum coke after screening will continue to be sent to the crushing roller 12 along the feeding pipe 6 for secondary crushing. By directly screening the petroleum coke before and after crushing through the vibrating screen 2, and then sending the large-piece petroleum coke to be crushed through the feeding pipe 6 and the spiral feeding rod 7, the effects of improving the screening effect before and after crushing and automatically performing secondary crushing are achieved.

[0029] Second step, when the particle size of the crushed material needs to be adjusted, rotate the two threaded rods 15. Since the threaded rods 15 are threadedly connected to the sliding frame 11, rotating the threaded rods 15 can make the sliding frame 11 slide inside the crushing and screening box 1, changing the distance between the crushing roller 12 and the rolling plate inside the crushing and screening box 1. By rotating the threaded rods 15, the position of the crushing roller 12 is adjusted, achieving the effect of being able to adjust the particle size of the crushed material.

[0030] Finally, it should be noted that: Obviously, the above embodiments are only examples clearly described for the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A screening device for crushing petroleum coke, comprising a crushing and screening box (1), characterized in that: The crushing and screening box (1) is provided with a screening mechanism, the screening mechanism comprising a screen (2), a support rod (3), a first motor (4) and a cam (5); a feeding mechanism is provided at a side end of the crushing and screening box (1), the feeding mechanism comprising a feeding pipe (6), a spiral feeding rod (7), a second motor (8) and a first bevel gear set (9); the crushing and screening box (1) is provided with a crushing mechanism, the crushing mechanism comprising a sliding frame (11), a crushing roller (12), a third motor (13), a second bevel gear set (14) and a threaded rod (15); Wherein, a hopper is installed at the side end of the crushing and screening box (1).

2. A screening device for petroleum coke crushing according to claim 1, characterized in that: One end of the screen (2) is rotatably connected to the crushing and screening box (1), the support rod (3) is fixedly mounted on the side end of the screen (2), the first motor (4) is fixedly mounted on the side end of the crushing and screening box (1), and the cam (5) is fixedly mounted on the rotating shaft of the first motor (4); The screen (2) is located inside the crushing and screening box (1), and the cam (5) is in contact with the support rod (3).

3. A screening device for petroleum coke crushing according to claim 1, characterized in that: The feeding pipe (6) is fixedly mounted on the side end of the crushing and screening box (1), the spiral feeding rod (7) is rotatably mounted inside the feeding pipe (6), the second motor (8) is fixedly mounted on the top end of the crushing and screening box (1), and the first bevel gear set (9) is mounted at the connection between the spiral feeding rod (7) and the second motor (8).

4. A screening device for petroleum coke crushing according to claim 1, characterized in that: The sliding frame (11) is slidably mounted inside the crushing and screening box (1), the crushing roller (12) is rotatably mounted on the side end of the sliding frame (11), the third motor (13) is fixedly mounted on the side end of the sliding frame (11), the second bevel gear set (14) is mounted at the connection between the crushing roller (12) and the third motor (13), and the threaded rod (15) is symmetrically rotatably mounted on both sides of the crushing and screening box (1); The two threaded rods (15) are respectively threadedly connected to the two ends of the sliding frame (11).

5. The screening equipment for petroleum coke crushing according to claim 1, characterized in that: A blanking plate (16) is fixedly installed inside the crushing and screening box (1).

6. The screening equipment for petroleum coke crushing according to claim 1, characterized in that: An aggregate box (17) is slidably mounted inside the crushing and screening box (1).

Images