Winnowing four-separation powder concentrator with multi-stage screening function
The air-separated four-stage air classifier with multi-stage screening function solves the problems of incomplete material dispersion and insufficient automated cleaning, realizes efficient material classification and automated cleaning, and improves the operational stability and classification accuracy of the equipment.
Patent Information
- Application Number
- CN202610014909.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-07
- Publication Date
- 2026-02-10
AI Technical Summary
Existing air-separation powder classifiers are not effective at dispersing materials, making it difficult to completely break up large-diameter agglomerates, which easily clog filter components. They also lack automated cleaning capabilities, and high-frequency vibrations can easily cause equipment connections to loosen, increasing maintenance costs and downtime.
The air-separated four-stage air classifier with multi-stage screening function includes a screening component, a drive component and a cyclone separator. Through the coordinated work of the dispersing component, the filtering component and the guide vanes, it realizes multi-stage screening and automated cleaning of materials. The linkage structure of magnetic blocks and elastic ropes automatically clears blockages, and the guide vane design reduces turbulence and energy consumption.
It effectively breaks up material agglomerates and clumps, prevents filter components from clogging, reduces equipment downtime, improves screening efficiency, increases grading accuracy, reduces energy consumption, and extends equipment lifespan.
Smart Images
Figure CN121491022A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of air separation four separation powder concentrator, in particular to an air separation four separation powder concentrator with multi-stage screening function. BACKGROUND
[0002] In the field of material processing, building material production and mineral processing, air separation type powder selection equipment is one of the mainstream equipment for realizing material classification. The core principle is mainly based on the combination of air flow drag and mechanical filtration. The air flow power is provided by a fan, so that the particles of different particle sizes are subjected to different forces in the air flow, and then the mechanical components such as screen and separation plate are used to realize the separation of materials.
[0003] The existing air separation type powder selection equipment has many technical shortcomings in actual application. Among them, the material scattering effect is not good. The existing scattering mechanism is mostly fixed structure or single elastic impact design, which cannot adaptively adjust the impact force according to the degree of material agglomeration, so that the large particle size clumps are difficult to completely break, and the unscattered material is easy to block the subsequent filter components, affecting the production continuity. Then, the automatic cleaning ability is missing. After the filter assembly is blocked, it mostly relies on manual disassembly and cleaning. The frequency and amplitude of the part of the vibration cleaning mechanism are fixed, and the cleaning effect of the strongly adhered blocked material is limited. In addition, high-frequency vibration can easily cause the equipment connecting piece to loosen, increasing the maintenance cost and downtime. SUMMARY
[0004] The purpose of the present application is to provide an air separation four separation powder concentrator with multi-stage screening function to solve the problems in the prior art.
[0005] To achieve the above purpose, the present application provides the following technical scheme: The air separation four separation powder concentrator comprises a screening assembly, a driving assembly and a cyclone separator. The cyclone separator is arranged on one side of the screening assembly. The driving assembly is located at the top end of the screening assembly. The screening assembly comprises a top powder selection bin and a bottom powder selection bin. The bottom powder selection bin comprises a bottom bin body. A scattering assembly is arranged in the bottom bin body. A filter assembly is arranged on one side of the scattering assembly. The filter assembly is used for directional cleaning of the local blockage in the scattering assembly. The top powder selection bin comprises a rhombus-shaped bin body, a main collection cone and a secondary collection cone. A collection cone is arranged in the rhombus-shaped bin body. The secondary collection cone is arranged in the rhombus-shaped bin body. The main collection cone is arranged outside the secondary collection cone. The main collection cone is fixedly connected with the inner wall of the rhombus-shaped bin body. The secondary collection cone is provided with a powder selection assembly at the top end.
[0006] The material types are various, including coarse material, medium material, fine material and powder material, wherein the coarse material, medium material and fine material need to be collected and treated, and the purity of each type needs to be ensured to prevent mixing with other types to reduce the purity, so that the collected material cannot be used and the production cost is increased. The screening assembly is used for multi-channel screening of the material, separation of the coarse material, medium material and fine material and collection thereof. The driving assembly is used for providing power to control the corresponding components to work. The cyclone separator is used for separating solid particles from gas. The cyclone separator is the last step of screening to separate the powder material from the gas. Then, the screening assembly is composed of two parts, one of which is a bottom powder bin used for receiving the original material and screening out the coarse material and medium material, and the other is a top powder bin used for separating the fine material and powder material from each other. When the original material is just sent into the device, agglomeration or clumping phenomenon usually occurs. The dispersing assembly is used for processing the agglomeration or clumping to prevent the material from piling up. When the material enters the filtering assembly, the first screening and the second screening are performed. The internal space of the bottom bin body and the internal space of the rhombic bin body are in communication with each other. The auxiliary collection cone in the rhombic bin body is used for collecting the fine material processed by the powder selecting assembly. The powder selecting assembly is the third screening.
[0007] Further, the filtering assembly comprises a particle separation plate and an elastic rope. The particle separation plate is provided with the elastic rope on one side. The particle separation plate is provided with a plurality of through holes. The through holes of the particle separation plate are provided with sliding cylinders which are in sliding connection with the inner walls of the through holes. The side of the sliding cylinder close to the elastic rope is provided with a second magnetic block. The elastic rope is provided with a wind receiving plate. The wind receiving plate is provided with a first magnetic block on one side.
[0008] Specifically, under normal circumstances, the material and the wind force are discharged through the sliding cylinder. The wind force is received by the wind receiving plate. The wind receiving plate is driven to move away from the particle separation plate, so that the distance between the first magnetic block and the second magnetic block is increased, and the first magnetic block does not affect the second magnetic block. When the sliding cylinder is blocked, the wind volume is reduced, and the wind receiving plate lacks the influence of the wind force and moves close to the particle separation plate. The distance between the first magnetic block and the second magnetic block is shortened. The first magnetic block repels the second magnetic block, so that the second magnetic block moves away from the wind receiving plate. In this process, the wind receiving plate moves to the other side due to the reaction force of the repulsive force, but it moves close to the particle separation plate again under the stretching of the elastic rope due to the lack of the driving of the wind force. One end of the sliding cylinder is affected by the magnetic block, and the other end is driven by the wind force, so that the piston moves back and forth to clean the blocked material in the sliding cylinder.
[0009] Further, the powder selecting assembly comprises a transmission rod, a cage rotor, a mounting disc and a guide vane, the cage rotor is located at the top end of the secondary collecting cone, the top end of the cage rotor is provided with the mounting disc, the mounting disc is in sliding connection with the cage rotor, the mounting disc, the cage rotor and the secondary collecting cone are on the same central axis, the transmission rod is located at the top end of the mounting disc, one end of the transmission rod is in fastening connection with the mounting disc and the cage rotor, the guide vane is located outside the cage rotor, one end of the guide vane is in fastening connection with the mounting disc, and the other end of the guide vane is in fastening connection with the surface of the secondary collecting cone; the guide vane is in the shape of an arc.
[0010] The guide vane is located around the cage rotor, one end of the guide vane is in fastening connection with the bottom end of the mounting disc, and the other end of the guide vane is in fastening connection with the surface of the secondary collecting cone, then, the transmission rod is used for transmitting kinetic energy and controlling the rotation of the cage rotor, the rotation of the cage rotor and the guide vane form a grading chamber, in the area, the material particles are mainly subjected to the centrifugal force and the gas drag force, the centrifugal force on the fine particles is greater than the gas drag force, and the fine particles fall into the fine material cone and are discharged from the fine material discharge port; the gas drag force on the stone powder is greater than the centrifugal force, after passing through the cage rotor, the stone powder enters the cyclone separator along with the wind and is subjected to the fourth screening; since the guide vane is designed in the shape of a curved surface, the air flow is guided to flow smoothly, the turbulence and the secondary entrainment of particles are greatly reduced, the classification precision of fine powder is improved, the system energy consumption is reduced, the blade wear rate is slower, and the service life is longer.
[0011] Further, the scattering assembly comprises a scattering plate and an elastic piece, the scattering plate is located in the bottom bin body, the scattering plate is provided with a plurality of scattering plates, the scattering plates are arranged in an interval, and the bottom end of each scattering plate is provided with an elastic piece.
[0012] When material enters the dispersing component through the feed inlet, it falls onto the dispersing plates. The reaction force of the plates causes the outer layer of the lumps to detach, and the material falls onto the next plate. During this process, as the volume of the lumps decreases and the falling speed slows, the reaction force from the dispersing plates also decreases, resulting in a reduced dispersing effect. This ultimately leads to lumps remaining or accumulating at the bottom. This accumulation easily clogs subsequent filters, causing a series of chain reactions. The dispersing plates are arranged in two rows at an angle, with opposite ends tilted downwards to form grooves. The plates are spaced apart to allow space for material to pass through. The end of the dispersing plate furthest from the feed inlet is rotatably connected to the inner wall of the bottom silo. Then, the elastic element at the bottom of the dispersing plate provides elastic potential energy. When receiving materials, the lumps fall onto the dispersing plate, exerting a downward pressure on the plate and causing the bottom elastic element to enter a compressed state. After the downward pressure ends, the elastic element provides elastic force, causing the dispersing plate to exert impact pressure on the lumps, increasing the dispersing efficiency. At the same time, it also causes the lumps to move upward, increasing the distance they need to fall to the next dispersing plate. The number of elastic elements is the same as the number of dispersing plates. The closer the elastic element is to the feed inlet and the closer it is to the inclined end, the greater the downward pressure required to clean larger lumps. The further away the elastic element is from the feed inlet and the further away it is from the inclined end, the less downward pressure required to clean smaller lumps.
[0013] Furthermore, a main air inlet is provided on the side of the bottom silo away from the diamond-shaped silo, a feed inlet is provided between the air inlet and the diamond-shaped silo, a coarse material discharge outlet is provided at the bottom of the bottom silo, a medium material discharge outlet is provided on one side of the coarse material discharge outlet, and a secondary air inlet is provided on the side of the bottom silo close to the diamond-shaped silo.
[0014] The main air inlet on one side of the bottom silo is connected to the air outlet of the external fan. The feed inlet is used to connect to the output end of the external equipment. The coarse material discharge port is located on the side of the dispersing plate away from the main air inlet and is used to collect coarse materials. The medium material discharge port is located on the side of the coarse material discharge port away from the main air inlet and is used to collect medium materials. Then, on the side of the medium material discharge port away from the air inlet, there is a secondary air inlet. The secondary air inlet is also connected to the air outlet of the external fan, and the airflow flows into the bottom silo and comes into contact with the airflow of the main air inlet. The materials are screened under the combined action of gravity and gas drag.
[0015] Furthermore, the filter assembly includes a particle separation plate, an elastic rope, an air receiving plate, a first magnetic block, a vibrating screen, and a vibrating motor. The particle separation plate is located between the coarse material discharge port and the medium material discharge port. An elastic rope is provided on the side of the particle separation plate away from the main air inlet. The two ends of the elastic rope are fixedly connected to the inner wall of the bottom hopper. The air receiving plate is sleeved on the elastic rope. A first magnetic block is provided on one side of the air receiving plate. The particle separation plate has several through holes. A sliding cylinder is provided in the through holes. The sliding cylinder is slidably connected to the inner wall of the through holes. A second magnetic block is provided on the side of the sliding cylinder close to the elastic rope. A vibrating screen is provided on the side of the particle separation plate away from the coarse material discharge port. The vibrating motor is located at the top of the secondary air inlet.
[0016] After being broken up, the material is driven by the wind and passes through the particle separation plate for coarse material separation. However, since the remaining material also contains medium and fine materials, it is easy to cause blockage when passing through the particle separation plate, which reduces the screening efficiency. If the blockage area of the particle separation plate is too large, it will also affect the air volume and ultimately affect the subsequent filtration of medium and fine materials.
[0017] Furthermore, a fine material discharge pipe is provided at the bottom of the secondary collection cone, which extends to the outer wall of the rhomboid silo, and the internal space of the rhomboid silo is connected to the internal space of the bottom silo.
[0018] The material inside the cage rotor is subjected to centrifugal force and gas drag. Fine particles are subjected to centrifugal force greater than gas drag and fall into the secondary collection cone and are discharged from the fine material discharge pipe. Powder is subjected to gas drag greater than centrifugal force and will pass through the cage rotor.
[0019] Furthermore, the drive assembly includes a mounting base and a drive motor. The mounting base is located at the top of the rhomboid compartment. A transmission unit is located at the top of the mounting base. A drive motor is provided on one side of the transmission unit. The output end of the drive motor is connected to the input end of the transmission unit. The output end of the transmission unit is connected to the transmission rod.
[0020] The mounting base serves as a mounting component, with the fixed end of the drive motor securely connected to the surface of the mounting base. The drive motor, as a power source, controls the rotation of the cage rotor. The drive motor transmits power to the transmission unit through its output end, and then the transmission unit controls the rotation of the transmission rod, which in turn drives the cage rotor.
[0021] As another further technical solution: Its L-shaped guide vanes and 90° bending design make it highly impact-resistant and adaptable to working conditions with high-hardness materials. At the same time, the local vortex effect can enhance the effect of throwing off coarse particles. L-shaped guide vanes form an annular sealed airflow guiding channel within the chamber, reducing airflow leakage. Simultaneously, the bends deflect and buffer the airflow, preventing turbulence and evenly guiding it into the gap between the cage rotors. This provides a stable environment for the separation of fine materials and powders. The thickened design at the bends also enhances wear resistance. The air-separated four-stage air classifier works collaboratively with the screening components, drive components, and cyclone separator. The material to be screened first enters through the feed inlet of the bottom screening chamber, where the dispersing components, through spaced-apart dispersing plates and bottom elastic elements, break up any clumps. The agglomerated material is then subjected to airflow at the main air inlet. Coarse material is discharged from the coarse material discharge port due to gravity exceeding the airflow drag force. The remaining material is processed by the particle separation plate and vibrating screen, causing the medium material to be discharged from the medium material discharge port. Fine material and powder enter the top separation powder bin with the airflow. Under the guidance of L-shaped guide vanes and the centrifugal force and gas drag force generated by the rotation of the cage rotor, the fine material falls into the secondary collection cone and is discharged from the fine material discharge pipe. The powder passes through the cage rotor and is separated and collected by the cyclone separator, ultimately achieving the four separations of coarse material, medium material, fine material, and powder.
[0022] Compared with the prior art, the beneficial effects of the present invention are: This invention uses multiple sets of spaced-apart dispersing plates in conjunction with bottom elastic elements. When the material falls, it impacts the dispersing plates, and the elastic elements compress and rebound to generate a secondary impact, which can efficiently break up material agglomerates and prevent clogging of subsequent filter components.
[0023] 2. This invention utilizes a linkage structure of a particle separation plate, an elastic rope, an air receiving plate, and magnetic blocks. When the sliding cylinder becomes clogged, the reduced airflow causes the air receiving plate to move closer to the particle separation plate. The first and second magnetic blocks generate a repulsive force, pushing the sliding cylinder to move in a piston-like motion, automatically clearing the clogged material. This eliminates the need for frequent manual cleaning, reduces equipment downtime, and improves overall screening efficiency.
[0024] 3. This invention uses the precise screening of the top-selection powder bin, the cage rotor and the guide vanes work together to separate more than 90% of the material in advance. Only pure powder enters the cyclone separator. The exhaust gas after separation has high cleanliness and can be recycled without complicated filtration. If a tail gas recovery system is added later, the wind power can be recycled. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the top-selection powder hopper of the present invention; Figure 3 This is a schematic diagram of the structure of the driving component of the present invention; Figure 4 This is a schematic diagram of the main collecting cone of the present invention; Figure 5 This is a schematic diagram of the structure of a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a specific embodiment two of the present invention; Figure 7 This is a schematic diagram of the bottom-selection powder bin of the present invention; Figure 8 This is a schematic diagram of the structure of the bottom compartment of the present invention; Figure 9 This is a schematic diagram of the structure of the filter assembly of the present invention; Figure 10 For the present invention Figure 8 Enlarged view of part A in the middle section; Figure 11 This is a schematic diagram of the structure of the guide vane of the present invention.
[0026] In the diagram: 1. Screening component; 11. Top screening hopper; 111. Diamond-shaped hopper body; 112. Main collecting cone; 113. Secondary collecting cone; 1131. Fine material discharge pipe; 12. Bottom screening hopper; 121. Bottom hopper body; 1211. Main air inlet; 1212. Secondary air inlet; 1213. Coarse material discharge port; 1214. Medium material discharge port; 1215. Feed inlet; 2. Drive component; 21. Mounting base; 22. Drive 23. Motor; 3. Transmission unit; 4. Cyclone separator; 5. Dispersing assembly; 6. Dispersing plate; 7. Elastic component; 8. Filter assembly; 9. Particle separation plate; 10. Elastic rope; 11. Air receiving plate; 12. First magnetic block; 13. Vibrating screen; 14. Vibrating motor; 15. Sliding cylinder; 16. Second magnetic block; 17. Powder classifier assembly; 18. Transmission rod; 19. Cage rotor; 20. Mounting plate; 21. Guide vane. Detailed Implementation
[0027] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Detailed Implementation
[0028] like Figures 1-5 , Figures 7-11 As shown, the air-separated four-part air classifier includes a screening component 1, a drive component 2 and a cyclone separator 3. The cyclone separator 3 is provided on one side of the screening component 1. The drive component 2 is located at the top of the screening component 1. The screening component 1 includes a top powder selection chamber 11 and a bottom powder selection chamber 12. The drive component 2 is located at the top of the top powder selection chamber 11. The bottom powder selection chamber 12 includes a bottom chamber body 121, a dispersing component 4 is provided inside the bottom chamber body 121, and a filter component 5 is provided on one side of the dispersing component 4. The filter component 5 is used to clean local blockages in the dispersing component 4 in a directional manner. The top-selection powder bin 11 includes a rhomboid bin body 111, a main collecting cone 112 and a secondary collecting cone 113. The collecting cone is located inside the rhomboid bin body 111, and the secondary collecting cone 113 is located inside the rhomboid bin body 111. The main collecting cone 112 is fitted over the secondary collecting cone 113. The main collecting cone 112 is fixedly connected to the inner wall of the rhomboid bin body 111. The top of the secondary collecting cone 113 is provided with a powder selection component 6.
[0029] Specifically, the materials are diverse, including coarse, medium, fine, and powder materials. Coarse, medium, and fine materials require collection and processing, and the purity of each type must be ensured to prevent contamination by other types, which would reduce purity, render the collected materials unusable, and increase production costs. Screening component 1 performs multiple screenings to separate and collect coarse, medium, and fine materials. Drive component 2 provides power and controls the operation of corresponding components. Cyclone separator 3 separates solid particles from the gas; it is the final screening step, separating the powder from the gas. Screening component 1 consists of two parts. The structure consists of two parts: a bottom powder selection bin 12, which receives raw materials and separates coarse and medium materials; and a top powder selection bin 11, which separates fine materials from powder. When raw materials are first fed into the device, agglomeration or clumping usually occurs. The dispersing component 4 is used to handle agglomeration or clumping and prevent material accumulation. When the material enters the filter component 5, it undergoes the first and second screening. The internal space of the bottom bin 121 is connected to the internal space of the rhomboid bin 111. The secondary collection cone 113 in the rhomboid bin 111 is used to collect the fine materials processed by the powder selection component 6, which is the third screening component.
[0030] The filter assembly 5 includes a particle separation plate 51 and an elastic rope 52. The elastic rope 52 is provided on one side of the particle separation plate 51. The particle separation plate 51 has several through holes. A sliding cylinder 57 is provided in the through holes of the particle separation plate 51. The sliding cylinder 57 is slidably connected to the inner wall of the through hole. A second magnet 58 is provided on the side of the sliding cylinder 57 close to the elastic rope 52. The elastic rope 52 is fitted with an air receiving plate 53. A first magnet 54 is provided on one side of the air receiving plate 53.
[0031] Specifically, under normal conditions, materials and airflow are discharged through the sliding cylinder 57. The airflow is received by the air receiving plate 53, which is pushed by the airflow to move away from the particle separation plate 51. This increases the distance between the first magnetic block 54 and the second magnetic block 58, so the first magnetic block 54 will not affect the second magnetic block 58. When the sliding cylinder 57 is blocked, the airflow decreases. Due to the lack of airflow, the air receiving plate 53 will move closer to the particle separation plate 51. The distance between the first magnetic block 54 and the second magnetic block 58 will shorten. The first magnetic block 54 will exert a repulsive force on the second magnetic block 58, causing the second magnetic block 58 to move away from the air receiving plate 53. During this process, the air receiving plate 53 moves to the other side due to the reaction force of the repulsive force. However, due to the lack of airflow, it is stretched by the elastic rope 52 and moves closer to the particle separation plate 51 again. One end of the sliding cylinder 57 is affected by the magnetic blocks, and the other end is pushed by the airflow, thus causing the piston to move back and forth, thereby clearing the blocked materials in the sliding cylinder 57.
[0032] like Figure 2 , Figure 5 , Figure 6 As shown, the powder selection assembly 6 includes a transmission rod 61, a cage rotor 62, a mounting plate 63, and guide vanes 64. The cage rotor 62 is located at the top of the secondary collection cone 113. The top of the cage rotor 62 is provided with a mounting plate 63, which is slidably connected to the cage rotor 62. The mounting plate 63, the cage rotor 62, and the secondary collection cone 113 are on the same central axis. The transmission rod 61 is located at the top of the mounting plate 63. One end of the transmission rod 61 passes through the mounting plate 63 and is fastened to the cage rotor 62. The guide vanes 64 are located outside the cage rotor 62. One end of the guide vanes 64 is fastened to the mounting plate 63, and the other end of the guide vanes 64 is fastened to the surface of the secondary collection cone 113.
[0033] Specifically, the guide vanes 64 are located around the cage rotor 62, with one end fixedly connected to the bottom of the mounting plate 63 and the other end fixedly connected to the surface of the auxiliary collecting cone 113. Then, the transmission rod 61 is used to transmit kinetic energy and control the rotation of the cage rotor 62. The rotation of the cage rotor 62 and the guide vanes 64 form a classification chamber. In this area, the material particles are mainly subjected to centrifugal force and gas drag. The centrifugal force on fine particles is greater than the gas drag, so they fall into the fine material cone and are discharged from the fine material outlet. The gas drag on stone powder is greater than the centrifugal force. After passing through the cage rotor, it enters the cyclone separator 3 with the wind for the fourth screening.
[0034] like Figure 5 As shown, the guide vane 64 has an arc-shaped structure.
[0035] Specifically, because the guide vanes 64 are curved, they guide the airflow smoothly, greatly reducing turbulence and secondary entrainment of particles. This not only improves the fine powder classification accuracy but also reduces system energy consumption. At the same time, the blades wear at a slower rate and have a longer service life.
[0036] like Figure 8 , Figure 10 As shown, the dispersing component 4 includes a dispersing plate 41 and an elastic element 42. The dispersing plate 41 is located inside the bottom compartment 121. There are several dispersing plates 41 arranged at intervals. Each dispersing plate 41 has an elastic element 42 at its bottom end.
[0037] Specifically, when the material enters the dispersing component 4 through the feed inlet 1215, it falls onto the dispersing plate 41. The reaction force of the dispersing plate 41 causes the outer layer of the lumpy material to detach, and then it falls onto the next dispersing plate 41. During this process, due to the reduced volume and falling speed of the lumpy material, the reaction force generated by the dispersing plate 41 also decreases, resulting in a reduced dispersing effect. Ultimately, this leads to material residue or accumulation at the bottom. This accumulation easily causes subsequent filter blockage, leading to a series of chain reactions. The dispersing plates 41 are arranged in two rows at an angle, with opposite ends tilted downwards to form grooves. The dispersing plates 41 are spaced apart to allow space for material to pass through. The end of the dispersing plate 41 furthest from the feed inlet 1215 is rotatably connected to the inner wall of the bottom silo 121. Then, the elastic element 42 at the bottom of the dispersing plate 41 provides elastic potential energy. When receiving materials, the lumpy material falls onto the dispersing plate 41, generating a downward pressure on the dispersing plate 41, causing the bottom elastic element 42 to enter a compressed state. After the downward pressure ends, the elastic element 42 provides elastic force, causing the dispersing plate 41 to generate impact pressure on the lumpy material, increasing the dispersing efficiency of the lumpy material. At the same time, it also causes the lumpy material to move upward, increasing the distance it takes to fall to the next dispersing plate 41. The number of elastic elements 42 is the same as the number of dispersing plates 41. The closer the elastic element 42 is to the feed inlet 1215 and the closer it is to the inclined end, the greater the downward pressure required to clean up larger lumps. The further away the elastic element 42 is from the feed inlet 1215 and the further away it is from the inclined end, the smaller the downward pressure required to clean up smaller lumps.
[0038] like Figure 8 As shown, a main air inlet 1211 is provided on the side of the bottom silo 121 away from the rhomboid silo 111. A feed inlet 1215 is provided between the main air inlet 1211 and the rhomboid silo 111. A coarse material discharge port 1213 is provided at the bottom of the bottom silo 121. A medium material discharge port 1214 is provided on one side of the coarse material discharge port 1213. A secondary air inlet 1212 is provided on the side of the bottom silo 121 close to the rhomboid silo 111.
[0039] Specifically, the main air inlet 1211 on one side of the bottom silo 121 is connected to the air outlet of the external fan, the feed inlet 1215 is used to connect to the output end of the external equipment, the coarse material discharge port 1213 is located on the side of the dispersing plate 41 away from the main air inlet 1211, and is used to collect coarse materials, the medium material discharge port 1214 is located on the side of the coarse material discharge port 1213 away from the main air inlet 1211, and is used to collect medium materials, and then, on the side of the medium material discharge port 1214 away from the main air inlet 1211, a secondary air inlet 1212 is opened, which is also connected to the air outlet of the external fan, and the airflow into the bottom silo 121 will come into contact with the airflow of the main air inlet 1211, and the materials will be screened under the combined action of gravity and gas drag.
[0040] like Figure 8 , Figure 9 As shown, the filter assembly 5 also includes a vibration motor 56, a particle separation plate 51 located between the coarse material discharge port 1213 and the medium material discharge port 1214, an elastic rope 52 with both ends fixedly connected to the inner wall of the bottom chamber 121, a vibrating screen 55 provided on the side of the particle separation plate 51 away from the coarse material discharge port 1213, and a vibration motor 56 located at the top of the secondary air inlet 1212.
[0041] Specifically, the dispersed material, driven by the wind, will pass through the particle separation plate 51 for coarse material separation. However, since the remaining material also contains medium and fine materials, it is still easy to cause blockage when passing through the particle separation plate 51, which reduces the screening efficiency. If the blockage area of the particle separation plate 51 is too large, it will also affect the air volume, ultimately affecting the subsequent filtration of medium and fine materials.
[0042] like Figure 4 As shown, the bottom end of the secondary collecting cone 113 is provided with a fine material discharge pipe 1131, which extends to the outer wall of the rhomboid silo 111. The internal space of the rhomboid silo 111 is connected to the internal space of the bottom silo 121.
[0043] Specifically, the material inside the cage rotor is subjected to centrifugal force and gas drag force. The centrifugal force on fine particles is greater than the gas drag force, so they fall into the secondary collection cone 113 and are discharged from the fine material discharge pipe 1131. The gas drag force on powder is greater than the centrifugal force, so it will pass through the cage rotor.
[0044] like Figure 3 As shown, the drive assembly 2 includes a mounting base 21 and a drive motor 22. The mounting base 21 is located at the top of the rhomboid chamber 111. A transmission unit 23 is located at the top of the mounting base 21. The drive motor 22 is provided on one side of the transmission unit 23. The output end of the drive motor 22 is connected to the input end of the transmission unit 23. The output end of the transmission unit 23 is connected to the transmission rod 61.
[0045] Specifically, the mounting base 21 serves as a mounting component, and the fixed end of the drive motor 22 is tightly connected to the surface of the mounting base 21. The drive motor 22 serves as a power source to control the rotation of the cage rotor 62. The drive motor 22 transmits power to the transmission unit 23 through its output end, and then controls the rotation of the transmission rod 61 through the transmission unit 23. The rotation of the transmission rod 61 drives the cage rotor 62 to rotate. Detailed Implementation
[0046] The only difference between this embodiment and Embodiment 1 is the structure of the guide vane 64. The structure of the guide vane 64 is not limited; it can be an L-shaped structure or an arc-shaped structure as in Embodiment 1. The specific differences are: like Figure 6 As shown, its L-shaped guide vanes with a 64-degree 90° bend design make it highly impact-resistant and adaptable to high-hardness material conditions. At the same time, the local vortex effect can enhance the effect of throwing off coarse particles. L-shaped guide vanes 64 form an annular sealed airflow guiding channel within the chamber, reducing airflow leakage. Simultaneously, the bends deflect and buffer the airflow, preventing turbulence and evenly guiding it through the gaps in the cage rotor 62, providing a stable environment for the separation of fine materials and powders. The thickened design at the bends also enhances wear resistance. The air-separated powder classifier works collaboratively with the screening component 1, drive component 2, and cyclone separator 3. The material to be screened first enters through the inlet 1215 of the bottom powder separation chamber 12, where the dispersing component 4, through spaced-apart dispersing plates 41 and bottom elastic elements 42, breaks up agglomerated clumps. Then, the material is further separated in the main... Under the action of airflow at the air inlet 1211, coarse material is discharged from the coarse material discharge port 1213 due to gravity being greater than the airflow drag force. The remaining material is processed by the particle separation plate 51 and the vibrating screen 55, so that the medium material is discharged from the medium material discharge port 1214. The fine material and powder enter the top separation powder bin 11 with the airflow. Under the guidance of the L-shaped guide vane 64 and the centrifugal force and gas drag force generated by the rotation of the cage rotor 62, the fine material falls into the secondary collection cone 113 and is discharged from the fine material discharge pipe 1131. The powder passes through the cage rotor 62 and is separated and collected by the cyclone separator 3, finally realizing the four separations of coarse material, medium material, fine material and powder.
[0047] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A four-stage air-separated air classifier with multi-stage screening function, characterized in that: The air-separated four-part air classifier includes a screening component (1), a drive component (2) and a cyclone separator (3). The cyclone separator (3) is provided on one side of the screening component (1). The drive component (2) is located at the top of the screening component (1). The screening component (1) includes a top air-separated powder bin (11) and a bottom air-separated powder bin (12). The drive component (2) is located at the top of the top air-separated powder bin (11). The bottom powder selection chamber (12) includes a bottom chamber body (121), a dispersing component (4) is provided inside the bottom chamber body (121), and a filter component (5) is provided on one side of the dispersing component (4). The filter component (5) is used to clean local blockages in the dispersing component (4) in a targeted manner. The top powder selection chamber (11) includes a rhomboid chamber body (111), a main collecting cone (112) and a secondary collecting cone (113). The secondary collecting cone (113) is located inside the rhomboid chamber body (111). The secondary collecting cone (113) is covered by the main collecting cone (112). The main collecting cone (112) is fixedly connected to the inner wall of the rhomboid chamber body (111). The top of the secondary collecting cone (113) is provided with a powder selection component (6).
2. The air-separated four-stage air classifier with multi-stage screening function according to claim 1, characterized in that: The filter assembly (5) includes a particle separation plate (51) and an elastic rope (52). The particle separation plate (51) has an elastic rope (52) on one side. The particle separation plate (51) has several through holes. A sliding cylinder (57) is provided in the through holes of the particle separation plate (51). The sliding cylinder (57) is slidably connected to the inner wall of the through hole. A second magnet (58) is provided on the side of the sliding cylinder (57) close to the elastic rope (52). The elastic rope (52) is fitted with a wind receiving plate (53). A first magnet (54) is provided on one side of the wind receiving plate (53).
3. The air-separated four-stage air classifier with multi-stage screening function according to claim 1, characterized in that: The dispersing component (4) includes a dispersing plate (41) and an elastic element (42). The dispersing plate (41) is located inside the bottom compartment (121). There are several dispersing plates (41) arranged at intervals. The bottom end of each dispersing plate (41) is provided with an elastic element (42).
4. The air-separated four-stage air classifier with multi-stage screening function according to claim 1, characterized in that: The drive assembly (2) includes a mounting base (21) and a drive motor (22). The mounting base (21) is located at the top of the rhomboid chamber (111). A transmission unit (23) is provided at the top of the mounting base (21). A drive motor (22) is provided on one side of the transmission unit (23). The output end of the drive motor (22) is connected to the input end of the transmission unit (23). The output end of the transmission unit (23) is connected to the transmission rod (61).
5. The air-separated four-stage air classifier with multi-stage screening function according to claim 1, characterized in that: The powder selection component (6) includes a transmission rod (61), a cage rotor (62), a mounting plate (63), and a guide vane (64). The cage rotor (62) is located at the top of the secondary collection cone (113). The top of the cage rotor (62) is provided with a mounting plate (63). The mounting plate (63) is slidably connected to the cage rotor (62). The mounting plate (63), the cage rotor (62), and the secondary collection cone (113) are on the same central axis. The transmission rod (61) is located at the top of the mounting plate (63). One end of the transmission rod (61) passes through the mounting plate (63) and is fastened to the cage rotor (62). The guide vane (64) is located outside the cage rotor (62). One end of the guide vane (64) is fastened to the mounting plate (63), and the other end of the guide vane (64) is fastened to the surface of the secondary collection cone (113).
6. The air-separated four-stage air classifier with multi-stage screening function according to claim 5, characterized in that: The guide vane (64) has an arc-shaped structure.
7. The air-separated four-stage air classifier with multi-stage screening function according to claim 5, characterized in that: The guide vane (64) has an L-shaped structure.
8. A four-stage air-separated air classifier with multi-stage screening function according to any one of claims 1 to 7, characterized in that: The bottom end of the secondary collecting cone (113) is provided with a fine material discharge pipe (1131), which extends to the outer wall of the rhomboid silo (111). The internal space of the rhomboid silo (111) is connected to the internal space of the bottom silo (121).
9. A four-stage air-separated powder classifier with multi-stage screening function according to any one of claims 1 to 7, characterized in that: The bottom silo (121) has a main air inlet (1211) on the side away from the rhombus silo (111), a feed inlet (1215) is provided between the main air inlet (1211) and the rhombus silo (111), a coarse material discharge port (1213) is provided at the bottom end of the bottom silo (1211), a medium material discharge port (1214) is provided on one side of the coarse material discharge port (1213), and a secondary air inlet (1212) is provided on the side of the bottom silo (1211) close to the rhombus silo (111).
10. A four-stage air-separated powder classifier with multi-stage screening function according to claim 9, characterized in that: The filter assembly (5) also includes a vibration motor (56), the particle separation plate (51) is located between the coarse material discharge port (1213) and the medium material discharge port (1214), the two ends of the elastic rope (52) are fixedly connected to the inner wall of the bottom silo (121), a vibrating screen (55) is provided on the side of the particle separation plate (51) away from the coarse material discharge port (1213), and the vibration motor (56) is located at the top of the secondary air inlet (1212).