Catalyst particle grading and distributing device
By combining horizontal conveyor belts and grading components, the problems of material stacking and recirculation in traditional methods are solved, achieving efficient grading and uniform distribution of catalyst particles, thereby improving production efficiency and product quality.
Patent Information
- Application Number
- CN202423032761.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In traditional catalyst particle classification and irregular shape processing methods, excessive conveying capacity of the elevator leads to material accumulation and return on the screen, affecting screening efficiency and product quality, and making it difficult to meet the high efficiency, high precision and high stability requirements of modern industry.
The system employs a horizontally extending conveyor belt and grading components, including screens, side plates, and vibrators. The screens are inclined to avoid material accumulation and backflow. The catalyst particles are graded by the screens and evenly spread on the drying belt. The vibrators promote stratification and prevent screen clogging.
It achieves uniform and continuous conveying of catalyst particles, reduces material stockpiling and return, improves screening efficiency and particle uniformity, ensures product quality, simplifies operation and reduces resource waste.
Smart Images
Figure CN223556514U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to catalyst particle grading technical field, specifically to a catalyst particle grading and distributing device. BACKGROUND
[0002] The main methods for catalyst particle grading and special-shaped processing currently include molding drying or screening by a screening machine after being made into finished products. The traditional grading vibrating screen requires the screened particles to have certain compressive strength and wear resistance. The material is directly fed into the screen mesh of the uppermost vibrating screen by the elevator, and discharged through multiple grading outlets.
[0003] However, when the conveying capacity of the elevator is too large, the material will accumulate on the screen mesh in large quantities, causing the screen mesh to run poorly and resulting in material stacking. This stacking phenomenon not only reduces the utilization rate of the screen mesh, but also causes the screening speed to decrease, and even part of the material directly enters the distributor without screening due to excessive stacking, thereby affecting the uniformity of the screened material particles and further affecting the product quality.
[0004] In addition, since the elevator needs to lift the material from a low position to a high position, it is inevitable to produce back material during the process. When the back material phenomenon is serious, a large amount of material cannot be fed into the screen mesh of the uppermost vibrating screen, but is returned to the base. The increase of material in the base also causes blockage.
[0005] In summary, the traditional catalyst particle grading and special-shaped processing method faces many challenges in actual operation. The stacking phenomenon on the screen mesh caused by the excessive conveying capacity of the elevator, as well as the back material problem, not only affects the screening efficiency and product quality, but also increases the difficulty of recycling unqualified products. The existence of these problems limits the efficiency of the screening machine, making the grading processing link in the catalyst production process inefficient and difficult to meet the needs of modern industry for high efficiency, high precision and high stability.
[0006] Therefore, in order to improve the efficiency and accuracy of catalyst particle grading, ensure product quality, and reduce resource waste and environmental impact, it is necessary to develop new grading and distributing technology. This technology should be able to achieve more accurate material control, reduce stacking and back material phenomenon, improve the utilization rate of the screen mesh, and ensure the uniformity of the screened material particles. In addition, the new technology should also consider the simplicity of operation, the convenience of maintenance and cost-effectiveness to adapt to changing market demands and improve the competitiveness of catalyst production. UTILITY MODEL CONTENT
[0007] The utility model aims to solve the problem of easy stacking and back material when using the elevator to feed the material to the screen mesh in the prior art.
[0008] In order to achieve the above object, the utility model provides a kind of catalyst particle grading material distribution device, including horizontally extending conveyer belt, grading assembly and the dry belt being partially located below grading assembly, grading assembly includes the screen mesh butt joint in the outlet of conveyer belt, the side plate being connected with the two sides of screen mesh and the vibrator being arranged on side plate, the height of screen mesh gradually reduces along the conveying direction of conveyer belt.
[0009] Optionally, the width of the conveying is less than the width of the screen mesh, and the width of the screen mesh is less than the width of the dry belt.
[0010] Optionally, the grading assembly further comprises a screen mesh baffle located on both sides of the screen mesh.
[0011] Optionally, the grading assembly further comprises a collection tank, and the collection tank is located at one end of the screen mesh away from the conveyer belt.
[0012] Optionally, a plurality of through holes are formed in the tank bottom of the collection tank.
[0013] Optionally, the grading assembly further comprises an elastic support.
[0014] Optionally, the inclination angle between the screen mesh and the horizontal plane is 3-30°.
[0015] Optionally, the screen mesh and the side plate are connected through a screen mesh support, and the screen mesh support is used to adjust the inclination angle between the screen mesh and the horizontal plane.
[0016] Optionally, the vibrator is a pneumatic vibrator.
[0017] Optionally, the screen mesh and the dry belt are made of stainless steel.
[0018] Through the above technical solution, the catalyst particle grading material distribution device can uniformly and continuously convey the material under the action of the conveyer belt, avoid the material accumulation during the conveying process, and the horizontally moving conveyer belt does not involve the lifting of the material from low to high, so there is no problem of returning material, thereby effectively ensuring that all materials can smoothly reach the dry belt, avoiding the blockage and material accumulation caused by the returned material. Moreover, the grading assembly located between the conveyer belt and the dry belt also considers the grading treatment of the material, and the conveyer belt and the grading assembly jointly act and achieve the purpose of uniformly laying the qualified catalyst particle wet material on the dry belt. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a top view structural schematic diagram of the catalyst particle grading material distribution device;
[0020] Figure 2 is a side view structural schematic diagram of the catalyst particle grading material distribution device.
[0021] MARK DESCRIPTION
[0022] 1 conveyor belt; 2 classification assembly; 21 screen; 22 side plate; 23 elastic support; 24 vibrator; 25 screen baffle; 26 collection groove; 261 through hole; 27 screen support; 3 drying belt DETAILED DESCRIPTION
[0023] In the present application, the orientation words such as "upper", "lower", "left", "right", "top", "bottom", "side" are generally understood in combination with the orientation shown in the drawings and the actual application, and "inner" and "outer" refer to the inner and outer of the component contour.
[0024] As shown in Figure 1 and Figure 2 The present application discloses a kind of catalyst particle grading distribution device, which comprises horizontally extending conveyor belt 1, classification assembly 2 and part located below classification assembly 2 drying belt 3, classification assembly 2 includes screen 21 that is connected to the outlet of conveyor belt 1, side plate 22 connected with the two sides of screen and vibrator 24 arranged on side plate 22, the height of screen 21 gradually reduces along the conveying direction of conveyor belt 1.
[0025] Among them, using conveyor belt 1 to transport catalyst particles in horizontal direction is more conducive to ensuring that catalyst particles are transported at a uniform speed and continuously to screen 21 compared with using elevator to lift catalyst particles from low to high and then feeding, thereby effectively avoiding abnormal accumulation of catalyst particles on screen 21 and backflow to material conveying device (here, the material conveying device mainly refers to elevator).
[0026] The specific reason why the above horizontally extending conveyor belt 1 is more advantageous is that, on the one hand, the feeding speed of the elevator will be affected by the weight of the catalyst particles, and the lifting speed of the elevator needs to be matched with the falling speed of the catalyst particles throughout the feeding process to maintain dynamic balance and thus ensure continuous and uniform delivery of the catalyst particles; the feeding speed of the horizontally extending conveyor belt 1 is easier to control, and the movement speed of the catalyst particles carried by the conveyor belt 1 is basically equal to the preset movement speed of the conveyor belt 1, so generally only the movement speed of the conveyor belt 1 needs to be adjusted to ensure continuous and uniform delivery of the catalyst particles. On the other hand, in the elevator, the catalyst particles are lifted from low to high, and if the lifting speed does not match the falling speed of the catalyst particles or the unloading device does not work properly, the catalyst particles may fall back from high to low, forming back material; on the horizontally extending conveyor belt 1, the catalyst particles move horizontally along the surface of the conveyor belt 1, and there is no vertical flow, so the catalyst particles will not fall back from high to low. In short, the horizontally extending conveyor belt 1 can provide variable and fast conveying speed, realize simple and efficient material conveying, and reduce the problems of material stacking and back material caused by speed mismatch.
[0027] The function of the grading assembly 2 is to grade the catalyst particles received from the outlet of the conveyor belt 1 through the screen 21. Specifically, the screen aperture of the screen 21 is preset according to the size of the catalyst particles to be graded, and the catalyst particles larger than the screen aperture are prevented from falling onto the surface of the drying belt 3, while the catalyst particles smaller than the screen aperture fall onto the surface of the drying belt 3 and are further dried on the drying belt 3 (both the catalyst particles on the conveyor belt 1 and the grading assembly 2 are wet materials containing a certain amount of water). The drying belt 3 is partially located below the grading assembly so as to receive the catalyst particles falling vertically after passing through the screen aperture.
[0028] The side plate 22 is used to support the screen 21 and the vibrator 24, and since the screen 21 and the vibrator 24 are jointly supported on the same side plate 22, the vibration generated by the vibrator 24 can be effectively transmitted to the screen 21. The vibration of the screen 21 has a greater promoting effect on the grading of the catalyst particles, including: first, promoting the stratification of the material. The vibration of the screen 21 can promote the stratification of the catalyst particles on the screen surface, so that the fine particles are more easily passed through the screen aperture, while the coarse particles are left on the screen surface; second, preventing the screen aperture from being blocked. The vibration of the screen 21 helps to break the agglomerates of the catalyst particles, reduces the phenomenon of screen aperture blocking, and thus improves the screening efficiency; third, increasing the contact of the material with the screen 21. The vibration of the screen 21 increases the number of contacts of the catalyst particles with the screen 21, which helps the fine particles to pass through the screen aperture and improves the screening effect.
[0029] The height of the screen 21 gradually decreases along the conveying direction of the conveyor belt 1, that is, the screen surface of the screen 21 is inclined to a certain extent relative to the conveying surface of the conveyor belt 1. The inclined screen surface helps to make the catalyst particles slide down along the screen surface, thereby dispersing the catalyst particles and avoiding the accumulation of the catalyst particles on the screen surface. Different sizes of catalyst particles will quickly stratify during the sliding process, in which the finer catalyst particles will pass through the screen aperture, while the coarser catalyst particles will slide to the end of the screen surface. In addition, the inclined screen surface can also increase the moving distance of the catalyst particles on the screen surface, so that the catalyst particles have more time to pass through the screen aperture, thereby improving the screening efficiency. It is worth noting that the vibration and inclination of the screen 21 complement each other in purpose and effect, and both work together to improve the screening efficiency and effect.
[0030] The working process of the catalyst particle grading and distributing device is as follows: first, the conveyor belt 1 conveys the catalyst particles containing a certain amount of water along the horizontal direction to the screen surface of the screen 21; then, under the joint action of the vibrator 24 and the gravity of the catalyst particles, the catalyst particles either slide to the end of the screen 21 along the inclined screen surface or pass through the screen aperture and finally fall onto the surface of the drying belt 3, thereby realizing the grading and distribution of the material.
[0031] Optionally, the width of the conveyor belt 1 is less than the width of the screen 21, and the width of the screen 21 is less than the width of the drying belt 3. Specifically, the width of the conveyor belt 1 being less than the width of the screen 21 can ensure that the conveyor belt 1 delivers all the catalyst particles to the screen surface of the screen 21; the width of the screen 21 being less than the width of the drying belt 3 can ensure that the catalyst particles on the screen surface always fall onto the surface of the drying belt 3 after passing through the screen holes.
[0032] Optionally, the classification assembly 2 further comprises screen baffles 25 located on both sides of the screen. Specifically, the screen baffles 25 are mainly used to prevent the catalyst particles on the screen surface from being dislodged from the screen surface due to vibration, as the catalyst particles dislodged from the screen surface are not subjected to classification treatment, which may, in addition to directly leading to a reduction in the screening efficiency, eventually bounce onto the surface of the drying belt 3 and affect the product quality, or bounce to other places such as the gap between structures, thereby increasing the cleaning and maintenance costs.
[0033] Optionally, the classification assembly 2 further comprises a collection tank 26 located at the end of the screen 21 away from the conveyor belt 1. Specifically, the collection tank 26 is used to collect the larger or irregularly shaped catalyst particles that fall to the end of the screen 21 during the classification process for recycling.
[0034] Optionally, a plurality of through holes 261 are formed on the tank bottom of the collection tank 26. The through holes 261 are uniformly distributed on the tank bottom of the collection tank 26, and the diameters of the through holes 261 are consistent with the diameters of the screen holes. The through holes 261 are used to further screen the smaller catalyst particles that fall into the collection tank 26 by mistake (here, the falling by mistake includes but is not limited to the catalyst particles smaller than the screen holes being covered or blocked by the larger catalyst particles due to the interference of particle movement, thereby failing to pass through the screen holes smoothly), thereby improving the final material classification effect.
[0035] Optionally, the classification assembly 2 further comprises elastic supports 23. Specifically, the elastic supports 23 are connected to the bottom of the side plates 22, and are used to support the side plates 22, the screen 21 connected to the side plates 22, and the vibrator 24 arranged on the side plates 22. There can be a plurality of elastic supports 23, which are spaced apart from each other on the side edge of the side plate 22 away from the screen 21, and the elastic supports 23 are arranged on the side plate 22 in a staggered manner. Figure 1 In the specific embodiment shown, one side plate 22 is arranged on each side of the screen 21, and each side plate 22 is connected to two elastic supports 23. Of course, additional elastic supports 23 can be added as necessary.
[0036] The main purpose of selecting the elastic support 23 instead of the rigid support is to further improve the screening efficiency and effect of the screen 21. On the one hand, the elastic support 23 can avoid further transmission and diffusion of vibration, and the vibration energy generated by the vibrator 24 can be relatively concentrated on the screen 21, rather than being absorbed or weakened by other structures, so that the vibration of the screen 21 is more effective. On the other hand, the elastic support 23 can more evenly distribute the vibration force, ensuring that each part of the screen 21 can be evenly vibrated, which helps to uniformly distribute the catalyst particles on the entire screen surface, reduces the accumulation and blockage of the catalyst particles on the screen holes, and makes the fine particles therein more easily pass through the screen holes. In view of the other aspect described above, from another perspective, since the elastic support 23 allows the screen 21 to vibrate more smoothly, it can also improve the flowability of the catalyst particles on the screen surface, so that the catalyst particles pass through the screen surface more quickly, improving the classification processing efficiency of the classification assembly 2 on the catalyst particles.
[0037] Optionally, the inclination angle of the screen 21 with respect to the horizontal plane is 3-30°. Specifically, the inclination angle needs to be selected differently according to different working conditions, especially according to the different catalyst particles to be classified.
[0038] Optionally, the screen 21 is connected with the side plate 22 through a screen support 27, and the screen support 27 is used to adjust the inclination angle of the screen 21 with respect to the horizontal plane. Specifically, the screen support 27 is used to flexibly adjust the inclination angle of the screen 21 with respect to the horizontal plane during the classification process, so that the inclination angle does not need to be adjusted during shutdown, improving the work efficiency. As shown in FIG. 2, the screen support 27 is a plurality of telescopic rods, the fixed ends of the telescopic rods are arranged on the side plate 22, and the telescopic ends of the telescopic rods are connected with the corners of the screen 21. The screen support 27 can also be other structures, such as a connecting rod hinged on the side plate 22, wherein the screen 21 is fixed to the upper surface of the connecting rod and changes the inclination angle with respect to the horizontal plane by rotating the connecting rod. Figure 2
[0039] Optionally, the vibrator 24 is a pneumatic vibrator. Specifically, the pneumatic vibrator is selected in the catalyst particle screening because the pneumatic vibrator uses compressed air as a power source, has a small gas consumption, is safe and energy-saving, and the vibration force, vibration frequency and amplitude can be adjusted by adjusting the air pressure and flow during movement, having good adjustability. Considering the cost budget, an electric vibrator can also be selected without affecting the screening effect of the catalyst particles. In summary, the specific application scenario, cost budget, safety requirements and maintenance conditions, etc. factors are considered and selected comprehensively.
[0040] Optionally, the screen 21 and the drying belt 3 are made of stainless steel. Specifically, the screen 21 and the drying belt 3 made of stainless steel have good acid resistance, alkali resistance and corrosion resistance, and are suitable for use in an environment directly contacting with the catalyst particles. The screen 21 made of stainless steel has high strength and is not easy to be damaged by long-time use and frequent vibration, thereby effectively improving the stability of the catalyst particle grading treatment. The drying belt 3 made of stainless steel can resist high temperature and is suitable for use in a high-temperature drying process. Of course, the screen 21 and the drying belt 3 made of stainless steel have many other advantages, which are not described here. In addition, the screen 21 and the drying belt 3 are not necessarily made of stainless steel, and can be replaced according to actual needs.
[0041] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited thereto. Within the technical concept of the present application, various simple modifications can be made to the technical solution of the present application, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present application will not be described again for various possible combination manners. However, these simple modifications and combinations should also be regarded as the disclosed content of the present application, and all belong to the protection scope of the present application.
Claims
1. A catalyst particle classifying and distributing device characterized by comprising: The device comprises a horizontally extending conveying belt (1), a grading assembly (2) and a drying belt (3) partially located below the grading assembly (2), the grading assembly (2) comprises a screen (21) abutting the outlet of the conveying belt (1), side plates (22) connected to both sides of the screen (21) and a vibrator (24) arranged on the side plates (22), the height of the screen (21) gradually decreases along the conveying direction of the conveying belt (1).
2. The catalyst particle staging device of claim 1, wherein, The width of the conveying belt (1) is less than the width of the screen (21), and the width of the screen (21) is less than the width of the drying belt (3).
3. The catalyst particle staging device of claim 1, wherein, The grading assembly (2) further comprises screen baffles (25) located on both sides of the screen (21).
4. The catalyst particle staging device of claim 1, wherein, The grading assembly (2) further comprises a collection groove (26) located at the end of the screen (21) away from the conveying belt (1).
5. The catalyst particle fractionating distributor of claim 4 wherein, A plurality of through holes (261) are formed on the groove bottom of the collection groove (26).
6. The catalyst particle staging device of claim 1, wherein, The grading assembly (2) further comprises elastic supports (23).
7. The catalyst particle staging device of claim 1, wherein, The inclination angle of the screen (21) with the horizontal plane is 3-30°.
8. The catalyst particle fractionating distributor of claim 7 wherein, The screen (21) and the side plates (22) are connected through a screen support (27) for adjusting the inclination angle of the screen (21) with the horizontal plane.
9. The catalyst particle staging device of claim 1, wherein, The vibrator (24) is a pneumatic vibrator.
10. The catalyst particle staging device of claim 1, wherein, The screen (21) and the drying belt (3) are made of stainless steel.