Activation pretreatment equipment for preparing mesoporous ZSM-5 molecular sieve
By designing an activation pretreatment device containing crushing components and semicircular screen plates, the problem that existing equipment cannot effectively screen raw materials is solved, and the uniform crushing and screening of raw materials is achieved, and the effect of molecular sieve preparation is improved.
Patent Information
- Application Number
- CN202421737813.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-20
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-20
AI Technical Summary
The existing activation pretreatment equipment cannot effectively screen the raw materials when crushing them, resulting in uneven coarse and fine powder particles during subsequent molecular sieve preparation, affecting the preparation effect.
An activation pretreatment device for the preparation of mesoporous ZSM-5 molecular sieve was designed, including a sieving box, a crushing assembly and a semicircular sieve plate. The crushing operation is carried out through the crushing roller, and the semicircular screen plate and agitating plate are used to screen and stir the powder to ensure that the powder can be screened evenly.
Effective crushing and sieving of raw materials is achieved, the coarse and fine uniformity of powder particles is ensured, and the effect and efficiency of subsequent molecular sieve preparation are improved.
Smart Images
Figure CN222984445U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molecular sieve preparation pretreatment equipment, and specifically, to an activation pretreatment equipment for the preparation of mesoporous ZSM-5 molecular sieve. Background Technique
[0002] ZSM-5 molecular sieve is a new type of zeolite molecular sieve containing organic amine cations. Based on this, mesoporous ZSM-5 molecular sieve is a molecular sieve material with mesoporous characteristics (pore size between 2 - 50 nm) by regulating its pore size through specific methods. Mesoporous ZSM-5 molecular sieve can significantly improve the mass transfer efficiency and catalytic activity in catalytic reactions due to its large specific surface area and pore size distribution. However, the preparation process of mesoporous ZSM-5 molecular sieve is complex, and activation pretreatment is a crucial step, directly affecting the quality and performance of the final product.
[0003] When performing activation pretreatment operations, corresponding activation pretreatment equipment is usually used. When the activation pretreatment equipment on the market is in use, a crushing roller is generally used to crush the raw materials. However, during the crushing process, there is a defect that the crushed raw materials cannot be screened, which easily causes the particle fineness of subsequent powders and the like to be not uniform enough, affecting the subsequent preparation effect of the molecular sieve and bringing inconvenience to users. In view of this, we have proposed an activation pretreatment equipment for the preparation of mesoporous ZSM-5 molecular sieve. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an activation pretreatment equipment for the preparation of mesoporous ZSM-5 molecular sieve to solve the defects mentioned in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] An activation pretreatment device for preparing mesoporous ZSM-5 molecular sieve, including a screening box, a discharge hole is arranged on the front side plate body of the screening box, an inclined discharge plate is fixedly installed between the bottom wall of the discharge hole and the rear side wall of the screening box, a semi-circular sieve plate is fixedly installed between the front and rear inner side walls of the screening box, the semi-circular sieve plate is located above the inclined discharge plate, a crushing component is arranged on the screening box, the crushing component includes two front and rear symmetric first rotating shafts rotatably connected between the left and right side plate bodies of the screening box, a crushing roller is fixedly installed on the first rotating shaft, a gear is fixedly installed at the end of the first rotating shaft, the two gears are meshed with each other, a driving motor is coaxially arranged at the end of one of the first rotating shafts, a second rotating shaft is also rotatably connected between the left and right side plate bodies of the screening box, two symmetric stirring plates are fixedly installed on the second rotating shaft, the stirring plates are located at the semi-circular sieve plate part, belt wheels are fixedly installed at the ends of the second rotating shaft and one of the first rotating shafts, and the two belt wheels are connected by a belt.
[0007] Preferably, the cross-section of the semi-circular sieve plate is semi-circular ring-shaped, and the end of the stirring plate abuts against the inner side surface of the semi-circular sieve plate.
[0008] Preferably, the plane where the bottom wall of the discharge hole is located and the inclined discharge plate are both inclined downward at an angle of 45 degrees to 60 degrees, and the driving motor is fixedly installed on the screening box.
[0009] Preferably, a rear side exposure hole is arranged on the rear side plate body of the screening box, and the rear side exposure hole is located directly behind the inclined discharge plate.
[0010] Preferably, a discharge hopper is fixedly installed on the front side surface of the screening box, and the discharge hopper is located at the discharge hole part.
[0011] Preferably, a plurality of support legs arranged in a matrix are fixedly installed on the bottom surface of the screening box, and the height of the support legs is 25 cm to 35 cm.
[0012] Preferably, a cleaning hole communicating with the outside is arranged on the right side plate body of the screening box, a cover plate is hinged on one side hole wall of the cleaning hole, and the other side plate body of the cover plate is fixedly connected with the screening box through a fastening bolt.
[0013] Preferably, baffle plates are fixedly installed on the front and rear inner side walls of the top box body of the screening box, the baffle plates are located above the crushing rollers, and a feed hopper is fixedly installed on the top surface of the screening box.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] 1. The utility model ensures that during use, the raw materials can be crushed and activated through the rotation of the crushing roller by setting the crushing component. Additionally, by setting the semi-circular sieve plate, after the stirring plate rotates, the powder on the semi-circular sieve plate can be stirred, promoting the more smooth screening of the powder through the semi-circular sieve plate, achieving the effects of crushing and screening.
[0016] 2. The utility model can clean the semi-circular sieve plate and the inclined discharge plate at the cleaning hole. After closing the cover plate, it can prevent the material from falling out. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is the overall structural schematic diagram of the utility model;
[0018] Figure 2 is the exploded structural schematic diagram of the utility model;
[0019] Figure 3 is the cross-sectional view of the screening box of the utility model;
[0020] Figure 4 is the structural schematic diagram of the crushing component of the utility model.
[0021] The meanings of the various reference numerals in the figure are as follows:
[0022] 1. Screening box; 10. Inclined discharge plate; 11. Rear exposed hole; 12. Semi-circular sieve plate; 13. Discharge hole; 14. Discharge hopper; 15. Support leg; 16. Cleaning hole; 17. Cover plate; 171. Fastening bolt; 18. Feed hopper; 19. Baffle plate;
[0023] 2. Crushing component; 20. First rotating shaft; 21. Crushing roller; 22. Gear; 23. Driving motor; 24. Second rotating shaft; 25. Pulley; 26. Belt; 27. Stirring plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0025] Please refer to Figures 1-4, the present utility model provides a technical solution: an activation pretreatment device for preparing mesoporous ZSM-5 molecular sieve, including a screening box 1. A discharge hole 13 is provided on the front side plate body of the screening box 1. An inclined discharge plate 10 is fixedly installed between the bottom wall of the discharge hole 13 and the rear side wall of the screening box 1. A semi-circular sieve plate 12 is fixedly installed between the front and rear inner side walls of the screening box 1. The semi-circular sieve plate 12 is located above the inclined discharge plate 10. A crushing component 2 is provided on the screening box 1. The crushing component 2 includes two front and rear symmetric first rotating shafts 20 rotatably connected between the left and right side plate bodies of the screening box 1. Crushing rollers 21 are fixedly installed on the first rotating shafts 20. Gears 22 are fixedly installed at the ends of the first rotating shafts 20. The two gears 22 are meshed with each other. The end of one of the first rotating shafts 20 is coaxially provided with a driving motor 23. The driving motor 23 is fixedly installed on the screening box 1. The end of the output shaft of the driving motor 23 is fixedly installed on the first rotating shaft 20, so as to be able to perform the crushing treatment operation of the material by the rotation of the crushing rollers 21.
[0026] In this embodiment, a second rotating shaft 24 is also rotatably connected between the left and right side plate bodies of the screening box 1. Left and right symmetric stirring plates 27 are fixedly installed on the second rotating shaft 24. The stirring plates 27 are located at the semi-circular sieve plate 12. Belt pulleys 25 are fixedly installed at the ends of the second rotating shaft 24 and one of the first rotating shafts 20. The two belt pulleys 25 are connected by a belt 26, so that the rotation of the stirring plates 27 can be used to make the powder material pass through the semi-circular sieve plate 12 for screening more smoothly.
[0027] In this embodiment, the cross-section of the semi-circular sieve plate 12 is semi-circular. The ends of the stirring plates 27 abut against the inner side surface of the semi-circular sieve plate 12, so as to promote the stirring of the material on the semi-circular sieve plate 12 and make the material pass through the semi-circular sieve plate 12 for screening more smoothly.
[0028] Specifically, the plane where the bottom wall of the discharge hole 13 is located and the inclined discharge plate 10 are both inclined downward at 45 degrees to 60 degrees, so that the powder falling along the semi-circular sieve plate 12 can fall out more smoothly at the inclined discharge plate 10 and the discharge hole 13. A discharge hopper 14 is fixedly installed on the front side surface of the screening box 1. The discharge hopper 14 is located at the discharge hole 13, which is convenient for discharging operations.
[0029] Furthermore, a rear side exposure hole 11 is provided on the rear side plate body of the screening box 1. The rear side exposure hole 11 is located directly behind the inclined discharge plate 10, so that other electronic devices can be installed at the rear side exposure hole 11.
[0030] In addition, a plurality of support legs 15 arranged in a matrix are fixedly installed on the bottom surface of the screening box 1. The height of the support legs 15 is 25 cm to 35 cm, so as to perform stable support operations by using the support legs 15.
[0031] It should be noted that a cleaning hole 16 communicating with the outside is provided on the right side plate of the screening box 1. One side wall of the cleaning hole 16 is hinged with a cover plate 17 through a hinge. The other side plate of the cover plate 17 is fixedly connected to the screening box 1 through a fastening bolt 171. After the cover plate 17 is opened, it is convenient to clean the inclined discharge plate 10 and the semi-circular sieve plate 12 at the cleaning hole 16.
[0032] It is worth noting that baffle plates 19 are fixedly installed on the inner walls of the front and rear sides of the top box of the screening box 1. The baffle plates 19 are located above the crushing rollers 21, so that the material can enter between the two crushing rollers 21 along the baffle plates 19 more smoothly; a feed hopper 18 is fixedly installed on the top surface of the screening box 1, which is convenient for feeding operation by using the feed hopper 18.
[0033] When the activation pretreatment equipment for preparing mesoporous ZSM-5 molecular sieve of the present utility model is in use, the raw materials are put into the feed hopper 18, and the raw materials can fall down to the position between the two crushing rollers 21. The driving motor 23 is connected to an external power supply and made to work. When the driving motor 23 works, the output shaft thereon rotates to drive the first rotating shaft 20 and the crushing rollers 21 to rotate, realizing the crushing operation on the raw materials. The crushed powder falls down to the semi-circular sieve plate 12. In addition, the rotation of the first rotating shaft 20 drives the belt 26 to rotate, further driving the second rotating shaft 24 and the stirring plate 27 to rotate. After the stirring plate 27 rotates, it realizes stirring the powder on the semi-circular sieve plate 12, promoting the more smooth screening of the powder raw materials through the semi-circular sieve plate 12. The powder passing through the semi-circular sieve plate 12 falls down to the inclined discharge plate 10 and falls outwards along the inclined discharge plate 10;
[0034] Subsequently, when the cover plate 17 is opened, it is possible to clean the inclined discharge plate 10 and the semi-circular sieve plate 12 at the cleaning hole 16.
[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. An activation pretreatment device for preparing a mesoporous ZSM-5 molecular sieve, comprising a screening box (1), characterized in that: The screening box (1) is provided with a discharge hole (13) on the front plate body, an inclined discharge plate (10) is fixedly installed between the bottom wall of the discharge hole (13) and the rear wall of the screening box (1), a semicircular screen plate (12) is fixedly installed between the front and rear inner walls of the screening box (1), and the semicircular screen plate (12) is located above the inclined discharge plate (10), and a crushing assembly (2) is provided on the screening box (1), and the crushing assembly (2) comprises two first rotating shafts (20) which are symmetrical to each other and are rotatably connected to the left and right plates of the screening box (1), a crushing roller (21) is fixedly installed on the first rotating shaft (20), a gear (22) is fixedly installed at the end of the first rotating shaft (20), and the two gears (22) are meshed with each other, and a driving motor (23) is coaxially arranged at the end of one of the first rotating shafts (20), and the left side of the screening box (1) is provided with a crushing roller (21). A second rotating shaft (24) is rotatably connected between the right and left side plates, and two symmetrical stirring plates (27) are fixedly mounted on the second rotating shaft (24), and the stirring plates (27) are located at the semicircular screen plate (12). The second rotating shaft (24) and one of the first rotating shafts (20) are fixedly mounted with pulleys (25), and the two pulleys (25) are connected by a belt (26); a rear side exposure hole (11) is provided on the rear side plate of the screening box (1), and the rear side exposure hole (11) is located directly behind the inclined discharge plate (10); a cleaning hole (16) connected to the outside is provided on the right side plate of the screening box (1), and a cover plate (17) is hinged on one side hole wall of the cleaning hole (16) by a hinge, and the other side plate of the cover plate (17) is fixedly connected to the screening box (1) by a fastening bolt (171).
2. The activation pretreatment equipment for preparing mesoporous ZSM-5 molecular sieve according to claim 1, characterized in that: The cross section of the semicircular sieve plate (12) is semi-circular, and the end of the stirring plate (27) abuts against the inner side surface of the semicircular sieve plate (12).
3. The activation pretreatment equipment for preparing mesoporous ZSM-5 molecular sieve according to claim 1, characterized in that: The plane where the bottom wall of the discharge hole (13) is located and the inclined discharge plate (10) are both arranged to be inclined downward by 45 to 60 degrees, and the drive motor (23) is fixedly mounted on the screening box (1).
4. The activation pretreatment equipment for preparing mesoporous ZSM-5 molecular sieve according to claim 1, characterized in that: A discharge hopper (14) is fixedly mounted on the front side of the screening box (1), and the discharge hopper (14) is located at the position of the discharge hole (13).
5. The activation pretreatment equipment for preparing mesoporous ZSM-5 molecular sieve according to claim 1, characterized in that: A plurality of support legs (15) arranged in a matrix are fixedly mounted on the bottom surface of the screening box (1), and the height of the support legs (15) is 25 cm to 35 cm.
6. The activation pretreatment equipment for preparing mesoporous ZSM-5 molecular sieve according to claim 1, characterized in that: Material baffle plates (19) are fixedly mounted on the inner walls of both the front and rear sides of the top box body of the screening box (1), and the material baffle plates (19) are located above the crushing roller (21). A feed hopper (18) is fixedly mounted on the top surface of the screening box (1).