A particle separation device based on adaptive risk control and non-equilibrium vibration

Abstract

The present application relates to a kind of particle separation device based on adaptive risk control and non-equilibrium vibration, belong to fine coal separation technical field, one of the problems of low separation precision, low efficiency and high energy consumption existing in the uniform air supply and overall balanced vibration of the existing particle air separation equipment is solved.The present application includes fluidized bed bed layer, airflow control unit and non-equilibrium vibration unit;Adjustable restraint mechanism is arranged between upper movable bed layer plate and lower restraint plate, adjustable air duct is formed between adjacent two adjustable restraint mechanisms, the adjustable air duct is communicated with the air distribution hole above and the restraint hole below, when movable bed layer plate moves up and down, the opening and closing size of adjustable air duct changes accordingly;Non-equilibrium vibration unit includes a plurality of first elastic bodies with gradually decreasing elastic coefficient, first elastic body is connected with the bed layer side plate of fluidized bed bed layer, and a plurality of first elastic bodies are arranged along the direction of material layer travel.The present application realizes the non-equilibrium vibration of fluidized bed bed layer and the adjustable air supply.

Description

Technical Field

[0001] This invention relates to the field of particle separation technology, and in particular to a particle separation device based on adaptive wind control and unbalanced vibration. Background Technology

[0002] A wind-powered shaking table is a type of shaking table equipment that uses air as a medium for gravity separation. A traditional wind-powered shaking table consists of a sorting bed, a frame, an air supply system, a vibration mechanism, and a dust collection device. The sorting bed uses a perforated plate or a rubber bed surface with parallel grooves, and is inclined both longitudinally and laterally. During sorting, the bed surface reciprocates through the vibration mechanism. The low-pressure rising airflow at the bottom causes the material to form a suspension layer. Low-density particles float to the surface and are discharged along the transverse slope, while high-density particles sink to the bottom and are discharged along the longitudinal end.

[0003] However, traditional particle air separation equipment (such as air-powered shaking tables) typically employs a uniform airflow supply and overall balanced vibration mode, which is greatly affected by particle size and shape, making it difficult to adapt to the uneven fluidization and decreased particle separation accuracy caused by variations in particle layer thickness. Conventional airflow and vibration methods cannot achieve precise loosening and effective stratification of heavy / light particles, resulting in low separation efficiency and high energy consumption. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide a particle separation device based on adaptive wind control and unbalanced vibration, in order to solve the problems of existing particle wind separation equipment, which usually adopts a uniform air volume supply and overall balanced vibration mode, which are greatly affected by particle size and shape, making it difficult to adapt to the fluidization unevenness and particle separation accuracy caused by changes in particle layer thickness; and conventional air volume and vibration methods cannot achieve accurate loosening and effective stratification of heavy / light particles, resulting in low separation efficiency and high energy consumption.

[0005] This invention provides a particle separation device based on adaptive wind control and unbalanced vibration, including a fluidized bed, an airflow control unit, and an unbalanced vibration unit. The fluidized bed includes a bed body and a movable bed plate connected thereto, with a plurality of air distribution holes evenly distributed on the movable bed plate. The airflow control unit includes a binding plate and a plurality of adjustable binding mechanisms. The binding plate is located below the movable bed plate and has binding holes evenly distributed vertically opposite to the air distribution holes. The upper end of each adjustable binding mechanism is rotatably connected to the bottom of the air distribution hole, and the lower end of each adjustable binding mechanism is connected to the binding hole. The gap between two adjacent adjustable binding mechanisms directly below the air distribution hole forms an adjustable air duct. When the movable bed plate moves vertically with changes in material thickness, the opening and closing size of the adjustable air duct changes. The unbalanced vibration unit includes a plurality of first elastic bodies connected to one side of the bed body. The plurality of first elastic bodies are arranged along the material travel direction, and the elastic coefficient of the first elastic bodies gradually decreases along the material travel direction.

[0006] Furthermore, it also includes an air supply unit, which includes a pre-distribution air chamber that supplies airflow to the movable bed board, and the restraint plate is connected to the top of the pre-distribution air chamber.

[0007] Furthermore, the airflow control unit also includes a second elastic body, the upper end of which is connected to the bottom of the movable bed plate, and the lower end of which is connected to the top of the restraint plate.

[0008] Furthermore, the adjustable restraint mechanism includes a first connecting plate, a second connecting plate, and an elastic connector connected sequentially from top to bottom; the second connecting plate is vertically arranged, and the elastic connector is disposed in the restraint hole.

[0009] Furthermore, the upper end of the first connecting plate is rotatably connected to the bottom of the air distribution hole, the lower end of the first connecting plate is rotatably connected to the upper end of the second connecting plate, the lower end of the second connecting plate is slidably connected to the binding hole, one end of the elastic connector is connected to the side wall of the binding hole, and the other end is connected to the second connecting plate.

[0010] Furthermore, the unbalanced vibration unit also includes an eccentric oscillation mechanism and a transmission plate. The eccentric oscillation mechanism is disposed on one side of the fluidized bed, and the transmission plate is disposed on one side of the bed body. One end of the first elastic body is connected to the transmission plate, and the other end is connected to one side of the bed body.

[0011] Furthermore, the unbalanced vibration unit also includes a third elastic body and a transmission rod. One end of the third elastic body is connected to one end of the transmission rod, the other end of the transmission rod is connected to the eccentric oscillation mechanism, and the other end of the third elastic body is connected to one end of the transmission plate. The first elastic body and the third elastic body are respectively disposed on both sides of the transmission plate.

[0012] Furthermore, the eccentric oscillation mechanism includes a disc housing and a rotary motor, a rotating shaft, a connecting rod, a first counterweight, and a second counterweight disposed within the disc housing.

[0013] Furthermore, the rotating shaft is rotatably connected to the disc housing, the rotary motor is connected to the rotating shaft, the middle part of the connecting rod is connected to the rotating shaft, the first counterweight and the second counterweight are respectively connected to the two ends of the connecting rod, and the weights of the first counterweight and the second counterweight are different.

[0014] Furthermore, the eccentric oscillation mechanism also includes an elastic buffer, a pulley, and a slide rod. The slide rod is located on one side of the disc housing, one end of the pulley is connected to the outer side of the disc housing, and the other end of the pulley is located in the guide groove on the slide rod and can slide in the guide groove.

[0015] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: (1) The adjustable binding mechanism of the present invention is located between the upper movable bed plate and the lower binding plate. An adjustable air duct is formed between two adjacent adjustable binding mechanisms. The adjustable air duct is connected to the upper air distribution hole and the lower binding hole. When the movable bed plate moves up and down, the opening and closing size of the adjustable air duct changes accordingly, so that the air volume flowing from the pre-distribution air chamber to the air distribution hole through the adjustable air duct changes with the thickness of the material, realizing "heavy material, large air volume; light material, small air volume". At the same time, a first elastic body with a gradually decreasing elastic coefficient is set on one side of the bed body along the material travel direction, realizing "thick material, strong vibration; thin material, weak vibration". Through the synergistic effect of the gradient vibration field of "thick material, strong vibration; thin material, weak vibration" and the adaptive gradient air field of "heavy material, large air volume; light material, small air volume", the dual precise control of the material is realized, which effectively promotes the uniform loosening and efficient stratification of the material. The separation accuracy and energy efficiency are high, the system structure is relatively simple, and the adaptability is strong.

[0016] (2) In this invention, a second elastic body is provided between the movable bed plate and the restraint plate. The movable bed plate constitutes the upper movable plate, and the restraint plate serves as the fixed lower plate. Near the feed side, the material layer is thicker, and the second elastic body experiences greater gravity, resulting in larger elastic deformation and a larger downward movement. Near the discharge side, the second elastic body experiences less gravity, resulting in smaller elastic deformation and a smaller downward movement. Furthermore, the second elastic body adapts to changes in the weight of the material layer, expanding and contracting adaptively. The feedback structure of the airflow control unit realizes a stepped self-adjusting airflow mode of "strong airflow for thick material and weak airflow for thin material," which automatically matches the airflow distribution with the material layer resistance, effectively improving the problem of excessive airflow in the thin material area and insufficient airflow in the thick material area, and reducing the risk of fluidization dead zones and jetting phenomena.

[0017] (3) In this invention, a first elastic body with a high elastic coefficient is configured in the region near the external eccentric oscillation mechanism to transmit and maintain strong vibration energy. In the region far from the driving source, a first elastic body with an elastic coefficient decreasing stepwise is configured in sequence. By utilizing the natural dissipation characteristics of vibration energy during transmission and combining the gradient change of the stiffness of the first elastic body, the vibration energy is actively guided and redistributed across the entire fluidized bed surface. Ultimately, a gradient vibration field with decreasing energy intensity is formed on the fluidized bed surface from the driving end to the far end, precisely realizing the non-equilibrium excitation mode of "large vibration energy in thick material areas and small vibration energy in thin material areas", thereby specifically promoting the uniform loosening and efficient stratification of material layers of different thicknesses.

[0018] (4) The present invention provides an elastic buffer on the front and rear sides of the disc shell, and a pulley and a slide rod on the left side of the disc shell to suppress the lateral swaying and harmful resonance generated by the eccentric oscillation mechanism during start-up, shutdown and operation, and to more purely constrain and guide the vibration energy to the expected direction of transmission rod movement, thereby greatly improving the stability and reliability of the vibration source itself. A guide groove is provided on the slide rod, and the pulley is embedded in the guide groove. When the eccentric oscillation mechanism is working, the vibration generated by the disc shell will drive the pulley to slide along the length of the slide rod in the guide groove. The guide groove plays a constraining and guiding role, making the pulley's movement trajectory linear and without deviation, thereby effectively reducing the risk of disordered diffusion of vibration energy.

[0019] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0020] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0021] Figure 1 This is a schematic diagram of the particle separation device according to a specific embodiment; Figure 2 This is a schematic diagram of the connection structure between the airflow control unit and the movable bed plate in a specific embodiment. Figure 3 This is a schematic diagram of the connection structure of the adjustable restraint mechanism, movable bed plate, and restraint plate in a specific embodiment. Figure 4 This is a schematic diagram of a particle separation device without an air supply unit and a protective chamber, according to a specific embodiment. Figure 5 This is a schematic diagram of the structure of the unbalanced vibration unit in a specific embodiment.

[0022] Figure label: 1-Fluidized bed layer; 11-Bed layer body; 12-Modible bed plate; 121-Air distribution hole; 2-Airflow control unit; 21-Adjustable restraint mechanism; 211-First connecting plate; 212-Second connecting plate; 213-Elastic connector; 22-Restraint plate; 221-Restraint hole; 23-Adjustable air duct; 24-Second elastic body; 3-Uneven vibration unit; 31-First elastic body; 32-Eccentric oscillation mechanism; 321-Disc shell; 322-Rotary motor; 323-Rotating shaft; 324-Connecting rod; 325-First counterweight; 326-Second counterweight; 327-Elastic buffer; 328-Pulley; 329-Slide rod; 33-Transmission plate; 34-Third elastic body; 35-Transmission rod; 4-Air supply unit; 41-Pre-distribution air chamber; 42-Air duct; 5-Protective chamber. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0024] To address the issues of low separation accuracy, low efficiency, and high energy consumption caused by the use of uniform airflow and overall balanced vibration in existing particle air separation equipment, a specific embodiment of the present invention discloses a particle separation device based on adaptive airflow control and unbalanced vibration. Specifically, it relates to a separation device that integrates adaptive airflow control and unbalanced vibration system on the basis of air separation technology, which is particularly suitable for efficient and continuous separation of heavy / light particles under different operating conditions.

[0025] Combination Figure 1 and Figure 2As shown, the particle separation device includes a fluidized bed 1, an airflow control unit 2, and an unbalanced vibration unit 3. The fluidized bed 1 includes a bed body 11 and a movable bed plate 12 connected thereto. The movable bed plate 12 is uniformly provided with a plurality of air distribution holes 121. The airflow control unit 2 includes a binding plate 22 and a plurality of adjustable binding mechanisms 21. The binding plate 22 is located below the movable bed plate 12, and the binding plate 22 is uniformly provided with binding holes 221 that are directly opposite the air distribution holes 121. The upper end of the adjustable binding mechanism 21 is rotatably connected to the bottom of the air distribution hole 121, and the lower end of the adjustable binding mechanism 21 is connected to the binding hole 221. The gap between two adjacent adjustable binding mechanisms 21 directly below the air distribution hole 121 forms an adjustable air duct 23. When the movable bed plate 12 moves vertically with the change of material thickness, the opening and closing size of the adjustable air duct 23 is changed. The unbalanced vibration unit 3 includes multiple first elastic bodies 31. The first elastic bodies 31 are connected to one side of the bed body 11. The multiple first elastic bodies 31 are arranged along the traveling direction of the material layer, and the elastic coefficient of the first elastic bodies 31 gradually decreases along the traveling direction of the material layer.

[0026] Compared with the prior art, the particle separation device based on adaptive wind control and non-uniform vibration provided in this embodiment has an adjustable binding mechanism 21 disposed between the upper movable bed plate 12 and the lower binding plate 22. An adjustable air duct 23 is formed between two adjacent adjustable binding mechanisms 21. The adjustable air duct 23 is connected to the upper air distribution hole 121 and the lower binding hole 221. When the movable bed plate 12 moves up and down, the opening and closing size of the adjustable air duct 23 changes accordingly, so that the airflow from the pre-distribution air chamber 41 to the air distribution hole 121 through the adjustable air duct 23 varies with the material. The thickness variation achieves "stronger airflow for heavier materials and weaker airflow for lighter materials"; at the same time, a first elastic body 31 with a gradually decreasing elastic coefficient is set on one side of the bed body 11 along the material travel direction, realizing unbalanced vibration of "stronger vibration for thicker materials and weaker vibration for thinner materials". Through the synergistic effect of the gradient vibration field of "stronger vibration for thicker materials and weaker vibration for thinner materials" and the adaptive gradient airflow field of "stronger airflow for heavier materials and weaker airflow for lighter materials", dual precise control of materials is achieved, which effectively promotes uniform loosening and efficient stratification of materials, with high separation accuracy and energy efficiency, relatively simple system structure and strong adaptability.

[0027] Furthermore, the particle separation device also includes an air supply unit 4, which includes a pre-distribution air chamber 41 that supplies airflow to the movable bed plate 12, and a restraint plate 22 is connected to the top of the pre-distribution air chamber 41.

[0028] Combination Figure 2 and Figure 3As shown, the adjustable restraint mechanism 21 includes a first connecting plate 211, a second connecting plate 212, and an elastic connector 213. The upper end of the first connecting plate 211 is rotatably connected to the bottom of the air distribution hole 121, and the lower end of the first connecting plate 211 is rotatably connected to the upper end of the second connecting plate 212. The second connecting plate 212 is vertically arranged, and its lower end is slidably connected to the restraint hole 221. The elastic connector 213 is disposed in the restraint hole 221, with one end connected to the side wall of the restraint hole 221 and the other end connected to the second connecting plate 212. Preferably, the elastic connector 213 is a tension spring. The lower end of the first connecting plate 211 is inclined towards the vertical central axis of the air distribution hole 121. It should be noted that the lower end of the second connecting plate 212 is engaged with the inner wall of the restraint hole 221 via a sliding groove slider.

[0029] In this embodiment, the adjustable binding mechanism 21 includes a first connecting plate 211, a second connecting plate 212, and an elastic connector 213 connected sequentially from top to bottom. The first connecting plate 211 and the second connecting plate 212 are hinged together. The first connecting plate 211 is hinged to the lower end of the air distribution hole 121, and the second connecting plate 212 can slide in the binding hole 221. The two ends of the elastic connector 213 are respectively connected to the side wall of the binding hole 221 and the second connecting plate 212. When the thickness (i.e., weight) of the material on the movable bed plate 12 changes, the movable bed plate 12 moves up and down, and the two adjustable binding mechanisms 21 move closer or further away. That is, when the material is thick, the movable bed plate 12 moves downward, and the two adjustable binding mechanisms 21 move closer, and the adjustable air duct 23 becomes larger. When the material is thin, the movable bed plate 12 moves upward, and the two adjustable binding mechanisms 21 move further away under the action of the elastic connector 213, and the adjustable air duct 23 becomes smaller. This realizes the adaptive adjustment of air volume with the thickness of the material layer. It is worth noting that the air distribution hole 121 and the binding hole 221 are preferably rectangular holes.

[0030] To enable the movable bed plate 12 to move up and down according to the thickness of the material layer, such as Figure 2 and Figure 4 As shown, the airflow control unit 2 also includes a second elastic body 24, and multiple second elastic bodies 24 are evenly distributed along the travel direction of the material layer. The upper end of the second elastic body 24 is connected to the bottom of the movable bed plate 12, and the lower end of the second elastic body 24 is connected to the top of the restraint plate 22. The arrangement of the second elastic bodies 24 should not interfere with the adjustable restraint mechanism 21. Preferably, the second elastic body 24 is a spring.

[0031] Understandably, since a second elastic body 24 is provided between the movable bed plate 12 and the restraint plate 22, the movable bed plate 12 constitutes the upper movable plate, and the restraint plate 22 serves as the fixed lower plate. Near the feed side, where the material layer is thicker, the second elastic body 24 experiences greater gravity, resulting in larger elastic deformation and a greater downward movement. Near the discharge side, where the second elastic body 24 experiences less gravity, resulting in smaller elastic deformation and a smaller downward movement. Furthermore, the second elastic body 24 adaptively expands and contracts with changes in the weight of the material layer. The feedback structure of the airflow control unit 2 achieves a stepped self-adjusting airflow mode of "strong airflow for thick material and weak airflow for thin material," automatically matching the airflow distribution with the material layer resistance. This effectively improves the problem of excessive airflow in thin material areas and insufficient airflow in thick material areas, reducing the risk of fluidization dead zones and jetting phenomena.

[0032] Because there is a gap between the upper movable bed plate 12 and the lower binding plate 22, and the binding plate 22 is connected to the top of the pre-distributed air chamber 41, in order to effectively reduce the airflow loss from the pre-distributed air chamber 41 to the movable bed plate 12, such as... Figure 1 As shown, the particle separation device also includes a protective chamber 5. The upper end of the protective chamber 5 is connected to the bottom edge of the movable bed plate 12, and the lower end of the protective chamber 5 is connected to the top edge of the restraint plate 22. The protective chamber 5 encloses the adjustable restraint mechanism 21 and the second elastic body 24 inside it. It should be noted that the protective chamber 5 is made of soft material to accommodate the up-and-down movement of the movable bed plate 12.

[0033] Understandably, the pre-distributed air chamber 41 is located below the fluidized bed layer 1, such as... Figure 1 As shown, the air supply unit 4 also includes an air duct 42 and an air source. One end of the air duct 42 is connected to the air source, and the other end is connected to the pre-installed air chamber 41.

[0034] Traditional vibration methods (such as installing a single or dual motor on the side plate of the bed) can only drive the entire sorting bed to vibrate uniformly, resulting in uniform vibration energy that cannot meet the differentiated vibration energy requirements of material layers of varying thicknesses: thicker material areas require stronger energy to overcome interparticle adhesion, while excessive energy in thinner material areas can easily lead to material splashing and wasted energy. To solve these problems, such as... Figure 1 As shown, the unbalanced vibration unit 3 also includes an eccentric oscillation mechanism 32, which is disposed on one side of the fluidized bed 1, i.e., the eccentric oscillation mechanism 32 is external and single. The eccentric oscillation mechanism 32 serves as the driving source for the first elastic body 31, and multiple first elastic bodies 31 with different elastic coefficients are disposed along one side of the bed body 11.

[0035] In this embodiment, multiple first elastic bodies 31 are arranged on one side of the bed body 11 along the direction of material travel. The elastic coefficient of the first elastic body 31 near the eccentric oscillation mechanism 32 is high, while the elastic coefficient of the first elastic body 31 away from the eccentric oscillation mechanism 32 gradually decreases. High elastic coefficient first elastic bodies 31 are arranged in the region near the external eccentric oscillation mechanism 32 to transmit and maintain strong vibration energy. In the region away from the driving source, first elastic bodies 31 with progressively decreasing elastic coefficients are arranged sequentially. Utilizing the natural dissipation characteristics of vibration energy during transmission, and combined with the gradient change in the stiffness of the first elastic bodies 31, the vibration energy is actively guided and redistributed across the entire fluidized bed surface. Ultimately, a gradient vibration field with decreasing energy intensity is formed on the fluidized bed surface from the driving end to the far end, precisely realizing the non-equilibrium excitation mode of "large vibration energy in thick material areas and small vibration energy in thin material areas," thereby specifically promoting uniform loosening and efficient stratification of material layers of different thicknesses.

[0036] Considering the installation of multiple first elastic bodies 31 and the transmission of the driving source power of the eccentric oscillation mechanism 32, such as Figure 1 , Figure 4 and Figure 5 As shown, the unbalanced vibration unit 3 also includes a transmission plate 33, a third elastic body 34, and a transmission rod 35. The transmission plate 33 is located on one side of the bed body 11. Multiple first elastic bodies 31 are mounted on the transmission plate 33, with one end of each first elastic body 31 connected to the transmission plate 33 and the other end connected to one side of the bed body 11. One end of the third elastic body 34 is connected to one end of the transmission rod 35, the other end of the transmission rod 35 is connected to the eccentric oscillation mechanism 32, and the other end of the third elastic body 34 is connected to one end of the transmission plate 33. The first elastic bodies 31 and the third elastic bodies 34 are respectively located on both sides of the transmission plate 33. The third elastic body 34 is positioned close to the first elastic body 31 with the maximum elastic coefficient. The third elastic body 34 is preferably a compression spring or a rubber damper, serving as a buffer and energy transfer device.

[0037] like Figure 5As shown, the eccentric oscillation mechanism 32 includes a disc housing 321 and a rotary motor 322, a rotating shaft 323, a connecting rod 324, a first counterweight 325, and a second counterweight 326 disposed within the disc housing 321. The rotating shaft 323 is rotatably connected to the disc housing 321, the rotary motor 322 is connected to the rotating shaft 323, the middle part of the connecting rod 324 is connected to the rotating shaft 323, and the first counterweight 325 and the second counterweight 326 are respectively connected to both ends of the connecting rod 324, with the first counterweight 325 and the second counterweight 326 having different weights. The rotary motor 322 drives the rotating shaft 323 to rotate, and the connecting rod 324, the first counterweight 325, and the second counterweight 326 rotate synchronously with the rotating shaft 323. Due to the different weights of the first counterweight 325 and the second counterweight 326, an eccentric mass block is formed with its center of mass offset from the axis of rotation. One end of the transmission rod 35 is connected to the outer wall of the disc housing 321, and this connection position is directly opposite the rotating shaft 323.

[0038] Furthermore, in order to solve the problems of unstable vibration source and harmful resonance during start-up and shutdown of the vibration mechanism, such as... Figure 5 As shown, the eccentric oscillation mechanism 32 also includes an elastic buffer 327, a pulley 328, and a slide rod 329. The slide rod 329 is located on one side of the disc housing 321, and its two ends are connected to the frame. One end of the pulley 328 is connected to the outer side of the disc housing 321, and the other end of the pulley 328 is located in a guide groove on the slide rod 329 and can slide within the guide groove. The guide groove is arranged along the length direction of the slide rod 329. The pulley 328 and the transmission rod 35 are located on opposite sides of the disc housing 321. Two elastic buffers 327 are provided, and the two elastic buffers 327 are arranged along the diameter direction (horizontal direction) of the disc housing 321. One end of the elastic buffer 327 is connected to the bracket, and the other end is connected to the outer wall of the disc housing 321. Preferably, the elastic buffer 327 is a compression spring.

[0039] In this embodiment, an elastic buffer 327 is provided on both the front and rear sides of the disc housing 321 (i.e., at both ends along the vibration transmission direction), and a pulley 328 and a sliding rod 329 are provided on the left side of the disc housing 321. These features suppress lateral swaying and harmful resonance generated by the eccentric oscillation mechanism 32 during start-up, shutdown, and operation, and more purely constrain and guide the vibration energy to the expected direction of motion of the transmission rod 35, thereby significantly improving the stability and reliability of the vibration source itself. A guide groove is provided on the sliding rod 329, and the pulley 328 is embedded in this guide groove. When the eccentric oscillation mechanism 32 is working, the vibration generated by the disc housing 321 drives the pulley 328 to slide along the length of the sliding rod 329 within the guide groove. The guide groove serves to constrain and guide, ensuring that the movement trajectory of the pulley 328 is linear and without deviation, thereby preventing the disorderly diffusion of vibration energy.

[0040] It should be noted that the sliding of the pulley 328 in the guide groove in this embodiment is essentially a dynamic damping adjustment mechanism. During vibration, the pulley 328 is driven by the disc housing 321 to slide in the groove, consuming some of the vibration energy through friction and inertia, while allowing the disc housing 321 to perform limited displacement compensation. This effectively reduces the risk of resonance and, together with the elastic buffer 327, optimizes vibration transmission.

[0041] The particle separation device in this embodiment can achieve local adaptive adjustment of air volume, overcoming the fluidization dead zone and gushing phenomenon caused by traditional unified air supply; it achieves a precise loosening mode of "strong vibration for thick material and weak vibration for thin material" through unbalanced vibration, effectively solving the problems of fine particle agglomeration and unclear stratification; the system has a simple structure, fast control response, and does not require multiple power sources to be synchronized, significantly reducing equipment complexity and operating energy consumption, significantly improving sorting efficiency and stability, and enhancing the system's adaptive capability.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A particle separation device based on adaptive wind control and non-uniform vibration, characterized in that, The system includes a fluidized bed, an airflow control unit, and an unbalanced vibration unit. The fluidized bed includes a bed body and a movable bed plate connected thereto, with multiple air distribution holes evenly distributed on the movable bed plate. The airflow control unit includes a restraint plate and multiple adjustable restraint mechanisms. The restraint plate is located below the movable bed plate and has restraint holes evenly distributed vertically opposite to the air distribution holes. The upper end of each adjustable restraint mechanism is rotatably connected to the bottom of the air distribution hole, and the lower end of each adjustable restraint mechanism is connected to the restraint hole. The gap between two adjacent adjustable restraint mechanisms directly below the air distribution hole forms an adjustable air duct. When the movable bed plate moves vertically with changes in material thickness, the opening and closing size of the adjustable air duct changes. The unbalanced vibration unit includes multiple first elastic bodies connected to one side of the bed body. The multiple first elastic bodies are arranged along the material travel direction, and the elastic coefficient of the first elastic bodies gradually decreases along the material travel direction. The adjustable restraint mechanism includes a first connecting plate, a second connecting plate, and a third connecting plate connected sequentially from top to bottom. The system comprises a connecting plate and an elastic connector; the second connecting plate is vertically arranged, and the elastic connector is disposed in the binding hole; the upper end of the first connecting plate is rotatably connected to the bottom of the air distribution hole, the lower end of the first connecting plate is rotatably connected to the upper end of the second connecting plate, the lower end of the second connecting plate is slidably connected to the binding hole, one end of the elastic connector is connected to the side wall of the binding hole, and the other end is connected to the second connecting plate; the unbalanced vibration unit further comprises an eccentric oscillation mechanism and a transmission plate, the eccentric oscillation mechanism is disposed on one side of the fluidized bed, the transmission plate is disposed on one side of the bed body, one end of the first elastic body is connected to the transmission plate, and the other end is connected to one side of the bed body; the unbalanced vibration unit further comprises a third elastic body and a transmission rod, one end of the third elastic body is connected to one end of the transmission rod, the other end of the transmission rod is connected to the eccentric oscillation mechanism, the other end of the third elastic body is connected to one end of the transmission plate, and the first elastic body and the third elastic body are respectively disposed on both sides of the transmission plate.

2. The particle separation device based on adaptive wind control and non-uniform vibration according to claim 1, characterized in that, It also includes an air supply unit, which includes a pre-air distribution chamber that supplies airflow to the movable bed board, and the restraint plate is connected to the top of the pre-air distribution chamber.

3. The particle separation device based on adaptive wind control and non-uniform vibration according to claim 1, characterized in that, The airflow control unit further includes a second elastic body, the upper end of which is connected to the bottom of the movable bed plate, and the lower end of which is connected to the top of the restraint plate.

4. The particle separation device based on adaptive wind control and non-uniform vibration according to claim 1, characterized in that, The eccentric oscillation mechanism includes a disc housing and a rotary motor, a rotating shaft, a connecting rod, a first counterweight, and a second counterweight disposed within the disc housing.

5. The particle separation device based on adaptive wind control and non-uniform vibration according to claim 4, characterized in that, The rotating shaft is rotatably connected to the disc housing, the rotary motor is connected to the rotating shaft, the middle part of the connecting rod is connected to the rotating shaft, the first counterweight and the second counterweight are respectively connected to the two ends of the connecting rod, and the weights of the first counterweight and the second counterweight are different.

6. The particle separation device based on adaptive wind control and unbalanced vibration according to claim 4 or 5, characterized in that, The eccentric oscillation mechanism further includes an elastic buffer, a pulley, and a slide rod. The slide rod is located on one side of the disc housing. One end of the pulley is connected to the outer side of the disc housing, and the other end of the pulley is located in a guide groove on the slide rod and can slide within the guide groove.

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