Olefin catalytic cracking catalyst mixing device
By introducing a sieving component and a mixing component into the olefin catalytic cracking catalyst mixing unit, the problem of impurities and unqualified particles being mixed in was solved, achieving efficient catalyst sieving and mixing, and improving mixing efficiency and reaction effect.
Patent Information
- Application Number
- CN202423256120.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-29
AI Technical Summary
Existing olefin catalytic cracking catalyst mixing devices cannot effectively screen out impurities and unqualified particles during the feeding stage, affecting mixing uniformity and catalytic performance, leading to abnormal reactions and reduced product yield.
The design incorporates screening and mixing components, including screens and stirring blades. The screens are driven by a motor to quickly screen and mix raw materials, removing impurities and promoting uniform mixing of catalyst particles.
It improved the quality of materials, solved the problem of impurity in the reaction caused by impurities, improved the uniformity and flowability of mixing, and enhanced the mixing efficiency and reaction preparation efficiency.
Smart Images
Figure CN223641723U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to catalyst mixing technical field especially relates to a kind of olefin catalytic cracking catalyst mixing device. BACKGROUND
[0002] In today's petroleum chemical industry, olefin catalytic cracking is an extremely important production process, which aims to convert larger molecular weight olefins into more valuable low-carbon olefins, and the catalyst plays a key catalytic role in this process. In order to ensure that the catalytic cracking reaction can be carried out efficiently, stably and accurately, the catalyst needs to be fully and uniformly mixed before use, which cannot be achieved without a special olefin catalytic cracking catalyst mixing device. As a key link in the entire production process, this device is responsible for mixing and blending catalysts of different types and characteristics in a specific ratio to ensure that the final mixed catalyst can exhibit optimal catalytic performance in subsequent olefin catalytic cracking reactions, thereby improving product yield, optimizing product quality, and helping the entire chemical production process achieve better economic and environmental benefits.
[0003] The existing olefin catalytic cracking catalyst mixing device is typically composed of several basic parts, including a feeding component, a stirring component, a discharging component, and a tank. In terms of feeding, a simple hopper or a directly connected feeding pipe is commonly used to transport different catalyst raw materials into the mixing tank. The stirring component mostly uses traditional mechanical stirring, relying on a motor-driven stirring shaft to rotate the stirring paddle installed on it within the tank, generating shear force and material flow to promote the collision and dispersion of catalyst particles, thus achieving mixing. The discharging component is usually a discharge port at the bottom of the tank, equipped with a corresponding valve to control the discharge of mixed catalyst. During operation, all parts work together to complete the mixing of catalyst according to the established process.
[0004] However, the existing technology has some problems in use. When transporting catalyst raw materials to the mixing device, impurities mixed in the raw materials and catalyst particles that do not meet the particle size requirements cannot be screened out, which leads to these impurities and unqualified particles entering the mixing tank along with the raw materials, participating in subsequent mixing and catalytic cracking reactions. This not only affects the uniformity of mixing but also adversely affects the performance of the catalyst, even causing abnormal reactions, reducing product yield, and other problems, which is not conducive to the efficient and stable development of the entire olefin catalytic cracking production process. Therefore, an olefin catalytic cracking catalyst mixing device is proposed to solve the above problems. SUMMARY
[0005] In order to make up for the above shortcomings, the utility model provides an olefin catalytic cracking catalyst mixing device, aiming at improving the prior art in the feed link lacks the means of effectively screening the impurities mixed in the catalyst raw materials, causing these impurities to enter the mixing device with the raw materials, affecting the purity of subsequent mixing and catalytic cracking reaction problems.
[0006] In order to achieve the above object, the utility model adopts the following technical scheme:
[0007] An olefin catalytic cracking catalyst mixing device, including the mixing jar body, the mixing jar body outer wall is provided with control box, the mixing jar body bottom fixedly connected with top cover, the mixing jar body inside is seted up with the discharge gate, the top cover inside is provided with screening subassembly, the screening subassembly is used for the raw material quick screening;
[0008] The screening subassembly includes the feed tank, the feed tank is fixedly connected in the top cover, the top cover top is fixedly connected with the support block, the fixed frame is fixedly connected on the inner wall of the feed tank, the motor one is fixedly connected in the support block, the motor one output is fixedly connected with the rotary rod, the rotary rod is rotatably connected in the fixed frame, the rotary rod outer wall is rotatably connected with the transmission block, the transmission block top is fixedly connected with the sliding column, the sliding column outer wall is slidably connected with the connecting column, the connecting column top end is fixedly connected with the screen, the fixed frame upper surface is fixedly connected with the left and right symmetrical limit post, the limit post is provided with spring one, one end of spring one is fixedly connected on the screen lower surface, the other end is fixedly connected in the screen inner wall, the mixing jar body inside is provided with mixing subassembly, the mixing subassembly is used for the raw material mixing fast;
[0009] As a further description of the above technical scheme:
[0010] The mixing subassembly includes the connecting shaft and the support shaft, the connecting shaft is fixedly connected in the top cover, the support shaft is fixedly connected in the connecting shaft bottom;
[0011] As a further description of the above technical scheme:
[0012] The connecting shaft upper surface is fixedly connected with the motor two, and the motor two output is fixedly connected with the transmission column;
[0013] As a further description of the above technical scheme:
[0014] The transmission column outer wall is slidably connected with the transmission shaft, and the support shaft is slidably connected in the transmission shaft;
[0015] As a further description of the above technical scheme:
[0016] The outer wall of the transmission column is provided with a spring two, one end of the spring two is fixedly connected to the lower surface of the connecting shaft, and the other end is fixedly connected to the top of the transmission shaft;
[0017] As a further description of the above technical solution:
[0018] The outer wall of the transmission shaft is fixedly connected with stirring blades, and the outer wall of the transmission shaft is fixedly connected with a flow guide barrel;
[0019] As a further description of the above technical solution:
[0020] The outer wall of the transmission shaft is fixedly connected with a sliding shaft, and the top end of the transmission column is fixedly and rotatably connected with a base;
[0021] As a further description of the above technical solution:
[0022] The inner portion of the base is provided with a sliding groove, and the sliding shaft is slidingly connected in the sliding groove.
[0023] The utility model has the following beneficial effects:
[0024] 1、 in the utility model, the rotating rod is driven to rotate in the fixed frame through the output end of motor one, so as to further drive the synchronous movement of transmission block, further make the sliding column slide in the connecting column when the transmission block moves, so as to drive the up-down reciprocating motion of the screen, the spring one is driven to occur elastic deformation through the movement of screen, so as to realize the effect of quickly screening raw materials, solve the problem that the impurities are mixed into the reaction, the unqualified particles damage the equipment and the quality of raw materials is difficult to control in real time in the prior art due to the lack of material screening, and the material quality is improved.
[0025] 2、 in the utility model, the transmission column and the transmission shaft are driven to move through the output end of motor two, the sliding shaft will further slide in the sliding groove when the transmission shaft moves, since the sliding groove is an inclined curved surface, the transmission shaft will further do up-down reciprocating motion when the sliding shaft slides, so as to realize the effect of quickly promoting the full mixing of catalyst material and improving the fluidity, so as to solve the problems of uneven mixing of traditional material, unbalanced mass and heat transfer, material sedimentation and accumulation, and improve the mixing efficiency and reaction preparation efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 A three-dimensional schematic view of an olefin catalytic cracking catalyst mixing device is provided for the utility model;
[0027] Figure 2 For Figure 1 The enlarged view of A in the middle;
[0028] Figure 3This is a schematic diagram of the internal structure of the feed box of an olefin catalytic cracking catalyst mixing device proposed in this utility model;
[0029] Figure 4 This is a schematic diagram of the cross-sectional structure of the mixing tank of an olefin catalytic cracking catalyst mixing device proposed in this utility model;
[0030] Figure 5 This is a schematic diagram of the top of the base of an olefin catalytic cracking catalyst mixing device proposed in this utility model.
[0031] Legend:
[0032] 1. Mixing tank; 2. Control box; 3. Top cover; 4. Discharge port; 5. Feed box; 6. Support block; 7. Motor 1; 8. Rotating rod; 9. Transmission block; 10. Sliding column; 11. Connecting column; 12. Screen; 13. Fixing frame; 14. Limiting column; 15. Spring 1; 16. Connecting shaft; 17. Support shaft; 18. Transmission shaft; 19. Motor 2; 20. Transmission column; 21. Spring 2; 22. Stirring blade; 23. Guide barrel; 24. Sliding shaft; 25. Base; 26. Slide groove. Detailed Implementation
[0033] 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.
[0034] Reference Figure 1 - Figure 3 An embodiment of this utility model is provided: an olefin catalytic cracking catalyst mixing device, including a mixing tank 1, providing a working environment for mixing and screening. A control box 2 is provided on the outer wall of the mixing tank 1 for centralized control of various electrical functions of the entire device to ensure the automated operation of the device. A top cover 3 is fixedly connected to the bottom of the mixing tank 1. A discharge port 4 is opened inside the mixing tank 1. A screening component is provided inside the top cover 3 for rapid screening of raw materials.
[0035] The screening assembly includes a feed box 5, the lower end of which is connected to the internal space of the mixing tank 1 to ensure the addition of raw materials. The feed box 5 is fixedly connected to the inside of the top cover 3. A support block 6 is fixedly connected to the top of the top cover 3 to support the motor 7 and provide a stable working platform for the motor 7. A fixing frame 13 is fixedly connected to the inner wall of the feed box 5. The motor 7 is fixedly connected inside the support block 6 to drive the operation of the screening assembly and provide the necessary output. A rotating rod 8 is fixedly connected to the output end of the motor 7. The rotating rod 8 is rotatably connected to the inside of the fixing frame 13. A transmission block 9 is rotatably connected to the outer wall of the rotating rod 8. A sliding column 10 is fixedly connected to the top of block 9. A connecting column 11 is slidably connected to the outer wall of the sliding column 10. A screen 12 is fixedly connected to the top of the connecting column 11. A left-right symmetrical limiting column 14 is fixedly connected to the upper surface of the fixing frame 13. A spring 15 is installed inside the limiting column 14. The function of the spring 15 is to provide a certain pressure to the screen 12 to ensure that the screen 12 always maintains appropriate tension and stability during the screening process, and to avoid material blockage or screen 12 falling off. One end of the spring 15 is fixedly connected to the lower surface of the screen 12, and the other end is fixedly connected to the inner wall of the screen 12. A mixing component is installed inside the mixing tank 1. The mixing component is used to quickly mix the raw materials.
[0036] Specifically, when the olefin catalytic cracking catalyst has impurities, uneven particle size, agglomeration, or high requirements for mixing uniformity and final product quality, the raw materials are fed into the feed box 5. Then, driven by motor 7, the output end of motor 7 drives the rotating rod 8 to rotate. The rotating rod 8 rotates inside the fixed frame 13. As the rotating rod 8 rotates, the rotational motion causes the transmission block 9 to move up and down in the vertical direction through a linkage mechanism. The up and down movement of the transmission block 9 is synchronous and is driven by the sliding column 10 to slide inside the connecting column 11, forming an effective transmission mechanism. At the same time, the movement of the sliding column 10 directly acts on the screen 12, causing the screen 12 to move up and down under the action of the raw materials. The reciprocating motion of the screen 12 enables rapid screening of the raw materials inside the feed box 5. This not only effectively filters out large particles but also promotes initial mixing and stirring of the materials through the vibration and friction between the materials and the screen 12. During the movement of the screen 12, the spring 15 also plays a crucial role. When the screen 12 begins to move, it forces the spring 15 to undergo elastic deformation. The restoring force of the spring 15 further promotes the elastic movement of the screen 12. This elastic response not only enhances the range of motion of the screen 12 but also makes the screening process more efficient. The presence of the spring 15 ensures that the movement of the screen 12 is not interfered with by excessive resistance, thus guaranteeing the stability and efficiency of the entire assembly during operation.
[0037] Reference Figure 4 andFigure 5 The mixing assembly includes a connecting shaft 16 and a support shaft 17. The connecting shaft 16 is fixedly connected inside the top cover 3 to ensure the uniformity and stability of the rotational motion and to avoid unbalanced loads caused by eccentricity. The support shaft 17 is fixedly connected to the bottom of the connecting shaft 16. A second motor 19 is fixedly connected to the upper surface of the connecting shaft 16. The main function of the second motor 19 is to provide the necessary power to the mixing assembly. A transmission column 20 is fixedly connected to the output end of the second motor 19. A transmission shaft 18 is slidably connected to the outer wall of the transmission column 20. The support shaft 17 is slidably connected inside the transmission shaft 18, so that the transmission shaft 18 can flexibly transmit power between the support shaft 17 and the connecting shaft 16. A second spring 21 is provided on the outer wall of the transmission column 20. The function of the second spring 21 is to provide a certain buffering force and restoring force for the transmission shaft 18, ensuring that the transmission shaft 18 can absorb the impact force caused by material changes during rotation. One end of the second spring 21 is fixedly connected to the lower surface of the connecting shaft 16, and the other end is fixedly connected to the top of the transmission shaft 18.
[0038] Specifically, when there are issues such as easy material stratification, dead zones in conventional stirring leading to uneven mixing, unsatisfactory mass and heat transfer, and easy material sedimentation and accumulation in the olefin catalytic cracking catalyst mixing device, after the raw materials are added into the mixing tank 1, the output end of motor 219 drives the transmission column 20 to rotate inside the base 25. The rotation of the base 25 synchronously drives the transmission shaft 18 to rotate as well. At the same time, the sliding shaft 24 on the outer wall of the transmission shaft 18 also slides along the connecting shaft 16 under the drive of the transmission shaft 18. The connecting shaft 16 has an inclined curved surface inside. When the transmission shaft 18 rotates, it forces the limiting column 14 to slide up and down with the rotation of the transmission shaft 18, thereby causing the transmission shaft 18 to reciprocate up and down. This up and down movement of the transmission shaft 18 drives the support shaft 17 to slide inside it, and causes the spring 21 on the support shaft 17 to undergo elastic deformation, thereby effectively stabilizing the up and down reciprocating movement of the transmission shaft 18 and ensuring the stability of the movement during the mixing process.
[0039] Reference Figure 4 and Figure 5 A stirring blade 22 is fixedly connected to the outer wall of the drive shaft 18. These stirring blades 22 are distributed at a certain angle to ensure that the material can be effectively stirred when the drive shaft 18 rotates. A guide barrel 23 is fixedly connected to the outer wall of the drive shaft 18. The guide barrel 23 is designed to guide the flow path of the material to ensure that it is not disturbed by the outside during the stirring process and can flow evenly through the stirring area. A sliding shaft 24 is fixedly connected to the outer wall of the drive shaft 18. A base 25 is fixedly and rotatably connected to the top of the drive column 20. The base 25 plays a supporting and fixing role to ensure the stability of the entire stirring assembly. A groove 26 is opened inside the base 25. The sliding shaft 24 is slidably connected inside the groove 26 to drive the drive shaft 18 to move up and down reciprocatingly.
[0040] Specifically, in addition, the guide bucket 23 guides the flow of materials during the mixing process, which not only helps to ensure the uniform distribution of materials, but also optimizes the mixing effect of materials, so that different types of raw materials are fully stirred inside the mixing tank 1. The synergistic effect of all these components not only improves the efficiency of the mixing process, but also ensures the quality of the mixed materials, avoids uneven distribution of raw materials during the mixing process, and thus achieves a more refined and efficient mixing operation.
[0041] Working principle: When using this device, raw materials are fed into the feed box 5. The output of motor 7 drives the rotating rod 8 to rotate inside the fixed frame 13. Simultaneously, the rotating rod 8 causes the transmission block 9 to move up and down synchronously. This up-and-down movement of the transmission block 9 drives the sliding column 10 to slide inside the connecting column 11, thereby causing the screen 12 to reciprocate up and down. The movement of the screen 12 forces the spring 15 to undergo elastic deformation, further promoting the elastic movement of the screen 12. This allows for rapid screening and preliminary mixing of the raw materials inside the feed box 5. A guide plate is installed at the bottom of the screen 12, which guides the screened raw materials into the mixing tank 1. After being added into the mixing tank 1, the output end of motor 29 drives the transmission column 20 to rotate inside the base 25. As the base 25 rotates, the transmission shaft 18 rotates synchronously with it. When the transmission shaft 18 rotates, its outer wall sliding shaft 24 slides inside the connecting shaft 16 under the drive of the transmission shaft 18. Through the inclined curved surface shape of the connecting shaft 16, the transmission shaft 18 is forced to move up and down reciprocally when the limiting column 14 slides. Under the movement of the transmission shaft 18, the support shaft 17 slides inside the transmission shaft 18, thereby causing the spring 21 to undergo elastic deformation, making the up and down reciprocating motion of the transmission shaft 18 more stable. During the mixing process, the guide barrel 23 can further guide the flow of materials, thereby optimizing the mixing effect.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 mixing device for olefin catalytic cracking catalyst, comprising a mixing tank (1), characterized in that: The mixing tank (1) is provided with a control box (2) on its outer wall. The bottom of the mixing tank (1) is fixedly connected with a top cover (3). The mixing tank (1) is provided with a discharge port (4). The top cover (3) is provided with a screening component. The screening component is used to quickly screen the raw materials. The screening assembly includes a feed box (5), which is fixedly connected inside the top cover (3). A support block (6) is fixedly connected to the top of the top cover (3). A fixing frame (13) is fixedly connected to the inner wall of the feed box (5). A motor (7) is fixedly connected inside the support block (6). A rotating rod (8) is fixedly connected to the output end of the motor (7). The rotating rod (8) is rotatably connected inside the fixing frame (13). A transmission block (9) is rotatably connected to the outer wall of the rotating rod (8). A top of the transmission block (9) is fixedly connected to... A sliding column (10) is slidably connected to a connecting column (11) on its outer wall. A screen (12) is fixedly connected to the top of the connecting column (11). A left-right symmetrical limiting column (14) is fixedly connected to the upper surface of the fixing frame (13). A spring (15) is provided inside the limiting column (14). One end of the spring (15) is fixedly connected to the lower surface of the screen (12), and the other end is fixedly connected to the inner wall of the screen (12). A mixing component is provided inside the mixing tank (1). The mixing component is used to quickly mix the raw materials.
2. The olefin catalytic cracking catalyst mixing device according to claim 1, characterized in that: The hybrid assembly includes a connecting shaft (16) and a support shaft (17), the connecting shaft (16) being fixedly connected inside the top cover (3), and the support shaft (17) being fixedly connected to the bottom of the connecting shaft (16).
3. The olefin catalytic cracking catalyst mixing device according to claim 2, characterized in that: The upper surface of the connecting shaft (16) is fixedly connected to a second motor (19), and the output end of the second motor (19) is fixedly connected to a transmission column (20).
4. The olefin catalytic cracking catalyst mixing device according to claim 3, characterized in that: The transmission column (20) is slidably connected to the outer wall of the transmission shaft (18), and the support shaft (17) is slidably connected inside the transmission shaft (18).
5. The olefin catalytic cracking catalyst mixing device according to claim 4, characterized in that: The outer wall of the transmission column (20) is provided with a spring (21). One end of the spring (21) is fixedly connected to the lower surface of the connecting shaft (16), and the other end is fixedly connected to the top of the transmission shaft (18).
6. The olefin catalytic cracking catalyst mixing device according to claim 5, characterized in that: A stirring blade (22) is fixedly connected to the outer wall of the drive shaft (18), and a guide barrel (23) is fixedly connected to the outer wall of the drive shaft (18).
7. The olefin catalytic cracking catalyst mixing device according to claim 6, characterized in that: The outer wall of the drive shaft (18) is fixedly connected to a sliding shaft (24), and the top of the drive column (20) is fixedly and rotatably connected to a base (25).
8. The olefin catalytic cracking catalyst mixing device according to claim 7, characterized in that: The base (25) has a groove (26) inside, and the sliding shaft (24) is slidably connected inside the groove (26).