An air separation device for easy separation of lightweight materials and aggregates

Abstract

This utility model relates to the field of solid waste treatment technology, and in particular discloses an air separation device for facilitating the separation of light materials and aggregates. The device includes a feeding mechanism, an air separation mechanism, and a conveying mechanism. The air separation mechanism separates the mixture conveyed by the feeding mechanism into light materials and aggregates. The conveying mechanism conveys the light materials and aggregates obtained by the air separation mechanism to the next process. The light materials include elongated light materials. The device also includes a material distribution mechanism disposed between the feeding mechanism and the conveying mechanism. The material distribution mechanism includes a first driving component, a roller component connected to the first driving component, and a material distribution component disposed on the roller component. The first driving component drives the roller component to rotate, so that the material distribution component, in conjunction with the air separation action of the air separation mechanism, transfers the elongated light materials in the mixture onto a first conveyor belt inside the air box. This utility model improves the capture rate and separation efficiency of such materials by actively agitating and guiding the elongated light materials through the material distribution component.

Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment technology, and in particular discloses an air separation device that facilitates the separation of lightweight materials from aggregates. Background Technology

[0002] In the resource recovery of construction waste and aged waste, air classification is a crucial process for separating lightweight materials from aggregates. However, existing air classification devices generally suffer from low separation efficiency for long, thin lightweight materials (such as plastic films and textile fibers). Due to their special shape and physical properties, these materials are prone to entanglement and adhesion during traditional air classification processes. Even if they are blown up by the airflow, they cannot be accurately fed into the lightweight material collection belt due to a lack of effective guidance, resulting in incomplete classification, decreased aggregate purity, and increased costs for subsequent manual sorting and frequency of equipment downtime for cleaning. The smooth-surfaced material rollers installed below the air classifier in existing technologies, due to their smooth surface, cannot effectively grasp and move these long, thin materials, failing to address the aforementioned technical bottleneck. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an air separation device that facilitates the separation of lightweight materials from aggregates.

[0004] To achieve the above objectives, this utility model provides an air separation device for facilitating the separation of lightweight materials and aggregates. The device includes a feeding mechanism, an air separation mechanism, and a conveying mechanism. The air separation mechanism separates the mixed material conveyed by the feeding mechanism into lightweight materials and aggregates. The conveying mechanism conveys the lightweight materials and aggregates obtained by the air separation mechanism to the next process, respectively. The lightweight materials include elongated lightweight materials. The device also includes a material distribution mechanism disposed between the feeding mechanism and the conveying mechanism. The material distribution mechanism includes a first driving member, a roller connected to the first driving member, and a material distribution member disposed on the roller. The first driving member drives the roller to rotate, so that the material distribution member, in conjunction with the air separation action of the air separation mechanism, transfers the elongated lightweight materials in the mixed material onto a first conveyor belt inside the air box.

[0005] Furthermore, there are multiple material distribution components, which protrude from the outer wall of the roller component in a direction away from the roller component; the multiple material distribution components are arranged along the axial direction of the roller component, and the multiple material distribution components are arranged along the circumferential direction of the roller component.

[0006] Furthermore, the outer wall of the roller component is provided with a plurality of first mounting portions, and the material distribution component is detachably disposed within the first mounting portion of the roller component.

[0007] Furthermore, the material separating component is a movable nail head, which is conical in shape and hinged to the first mounting part, so that it swings outward under the action of centrifugal force when the roller component rotates, in order to move long strip-shaped light materials of different shapes.

[0008] Furthermore, both the roller component and the material distribution component are made of metal materials, and the material distribution component is formed on the outer wall of the roller component by welding process.

[0009] Furthermore, the surface of the material distribution component is covered with a wear-resistant and non-stick coating, which is made of polyurethane or tungsten carbide material.

[0010] Furthermore, the air separation mechanism includes a fan assembly for generating airflow, a blower pipe connected to the fan assembly, a wind box corresponding to the blower pipe, and a return air duct connected to the wind box; the blower pipe has a first inclined section and a second inclined section, with an included angle between the first inclined section and the second inclined section, and the second inclined section extends toward the inner cavity of the wind box; the fan assembly is used to generate high-speed airflow that is blown out through the second inclined section of the blower pipe into the wind box.

[0011] Furthermore, a dust removal component is connected to the return air duct. The dust removal component is used to remove dust from the dust-laden air generated by the air separation of light materials in the return air duct and then return it to the return air duct. The dust removal component is one or more combinations of a wet scrubber, a bag filter, and a cyclone dust collector.

[0012] Furthermore, the feeding mechanism includes a first conveyor belt disposed inside the air box and a second conveyor belt disposed below the roller component; the feeding mechanism includes a lifting conveyor belt and an adjustable speed conveyor belt, the adjustable speed conveyor belt being located between the lifting conveyor belt and the first conveyor belt, and the roller component being located between the adjustable speed conveyor belt and the first conveyor belt;

[0013] The material conveyor belt is used to transport the mixture containing light materials and aggregates from the previous station to the adjustable speed conveyor belt. The adjustable speed conveyor belt is used to dynamically adjust the conveying speed to cooperate with the air blowing pipe and roller components, so that the light materials are blown up by the high-speed airflow and simultaneously moved by the rotating material distribution components to the first conveyor belt, while the aggregates fall to the second conveyor belt under the action of gravity.

[0014] Furthermore, the adjustable speed conveyor belt includes a support frame, an annular conveyor belt rotatably mounted on the support frame, a first drive roller that drives the annular conveyor belt, and a first speed-regulating motor that provides power to the first drive roller; the first speed-regulating motor is electrically connected to the main controller of the air classifier, and the main controller is used to receive external commands or signals and adjust the output frequency of the first speed-regulating motor, thereby changing the running speed of the annular conveyor belt.

[0015] Furthermore, the bulk material mechanism also includes a sensing unit and an electronic control unit electrically connected to the first drive component. The sensing unit is used to detect the content of long strip-shaped light materials in the mixture and generate a detection signal that is transmitted to the electronic control unit. The electronic control unit is configured to receive the detection signal, compare it with a preset threshold range, and output a control command to the first drive component based on the comparison result to dynamically adjust the rotational speed of the roller component.

[0016] Furthermore, the sensing unit is a high-speed camera installed on one side of the material conveyor, the first driving component includes a second speed-regulating motor and a transmission component connected inside the roller component, and the electrical control unit is a PLC controller.

[0017] The core technical solution of this utility model is to add a material dispersing mechanism between the feeding mechanism and the conveying mechanism. This dispersing mechanism is driven by a first driving component to rotate a roller component, and multiple protruding material dispersing components are provided on the outer surface of the roller component. When the mixed material falls from the feeding mechanism, the rotating material dispersing components actively intervene in the material flow, precisely agitating, picking up, and throwing those easily entangled long strips of light material. Under the synergistic effect of the airflow of the air classifier, these materials are more reliably transferred to the first conveyor belt inside the air box, thereby completing efficient separation. This design transforms passive material dispersing into active intervention, fundamentally changing the sorting dynamics of long strips of material.

[0018] The beneficial effects of this utility model are as follows: First, by actively moving and guiding long strip-shaped light materials through the material separating component, the capture rate and separation efficiency of such materials are greatly improved, effectively solving the separation blind zone of traditional air classifiers.

[0019] Secondly, the modular design (such as detachable material distribution components, movable nail head design, and wear-resistant coating) enhances the equipment's adaptability, maintainability, and service life, reducing long-term operating costs. Furthermore, the optional intelligent sensing and electrical control unit can dynamically adjust the drum speed based on material composition, achieving process optimization and energy saving.

[0020] Overall, while ensuring high aggregate purity, the device significantly improves the automation, sorting accuracy, and stability of the entire air separation system, providing efficient and reliable equipment support for waste resource utilization. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the planar structure of the air separation device of this utility model;

[0022] Figure 2 This is a schematic diagram of the position and structure of the bulk material handling mechanism of this utility model;

[0023] Figure 3This is a side view of the adjustable speed conveyor belt of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the bulk material handling mechanism of this utility model;

[0025] Figure 5 This is a cross-sectional structural diagram of the roller component and the material distribution component of this utility model;

[0026] Figure 6 for Figure 5 A magnified structural diagram of part A in the middle;

[0027] Figure 7 This is a cross-sectional view of another embodiment of the installation method of the material-separating components of this utility model.

[0028] The reference numerals in the figures include:

[0029] 1. Feeding mechanism; 2. Air separation mechanism; 3. Feeding mechanism; 4. Bulk material mechanism; 11. Lifting conveyor belt; 12. Adjustable speed conveyor belt; 121. Support frame; 123. First drive roller; 124. First speed-regulating motor; 21. Blower assembly; 22. Air duct; 221. First inclined section; 222. Second inclined section; 23. Air box; 24. Return air duct; 31. First conveyor belt; 32. Second conveyor belt; 41. First drive component; 42. Roller component; 421. First mounting part; 43. Material distribution component; 431. Wear-resistant and anti-stick coating; 432. Threaded section; 433. Spherical bearing. Detailed Implementation

[0030] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0031] Please see Figures 1 to 7 As shown, the air separation device of this utility model for facilitating the separation of lightweight materials and aggregates includes a feeding mechanism 1, an air separation mechanism 2, a conveying mechanism 3, and a material dispersing mechanism 4 disposed between the feeding mechanism 1 and the conveying mechanism 3. The feeding mechanism 1 is responsible for continuously and stably conveying the mixed materials to the sorting area. The air separation mechanism 2 achieves preliminary separation of light and heavy materials by generating directional airflow. The conveying mechanism 3 then conveys the separated lightweight materials and aggregates to subsequent processes respectively.

[0032] The core innovation of this solution lies in the design of the bulk material mechanism 4, which includes a first drive component 41, a roller component 42, and a material distribution component 43. The first drive component 41 preferably adopts an explosion-proof three-phase asynchronous motor, which is connected to the roller component 42 through a coupling. The roller component 42 adopts a hollow steel tube structure, and its two ends are supported on the frame by self-aligning roller bearings. The material distribution component 43 is evenly distributed on the outer surface of the roller component 42. When the roller component 42 rotates, the material distribution component 43 rotates accordingly, forming a synergistic effect with the airflow generated by the air separation mechanism 2, which is particularly effective in moving and guiding long strip-shaped light materials.

[0033] Compared to existing technologies that rely solely on airflow separation, this solution significantly improves the separation efficiency of entangled lightweight materials by organically combining mechanical agitation and pneumatic separation, effectively solving the technical problem of incomplete separation of long strip materials by traditional air separation devices.

[0034] Specifically, in this embodiment, the material distribution components 43 are arranged in a multi-row, multi-column matrix pattern, with no fewer than ten rows of material distribution components 43 arranged along the axial direction of the roller component 42, and no fewer than ten material distribution components 43 arranged in each row along the circumference of the roller component 42. The material distribution components 43 adopt a conical nail-like structure, with a large base diameter to ensure structural strength, and a rounded tip to avoid scratching the conveyor belt.

[0035] The material distribution component 43 is made of No. 45 steel through quenching and tempering, and the dimensional consistency of each material distribution component 43 is ensured through precision machining. During installation, the material distribution component 43 and the roller component 42 are at a certain radial angle, which can be adjusted within the range of 15 to 35 degrees according to the material characteristics.

[0036] Multiple material separating components 43 form a continuous agitation area on the surface of the drum. When the drum rotates at a certain speed, the material separating components 43 pass through the material falling area in sequence, creating a continuous agitation effect. Compared with the smooth drum or sparsely arranged lever structure in the prior art, this solution achieves continuous and uniform intervention on the material flow through a dense matrix arrangement of material separating components 43, effectively preventing the accumulation and blockage of materials in local areas, and significantly improving sorting efficiency and stability.

[0037] Specifically, in this embodiment, the outer wall of the roller component 42 is provided with a plurality of first mounting portions 421. The first mounting portions 421 adopt a standard threaded hole structure, and fine threads are machined in the holes. The thread depth is not less than 1.5 times the diameter of the mounting rod of the material distribution component 43. The bottom of the material distribution component 43 is machined with a threaded section 432 of corresponding specifications, which is used in conjunction with elastic washers and anti-loosening nuts to achieve reliable fixation during installation.

[0038] The center distance between adjacent mounting sections has been optimized to ensure the distribution density of the material distribution components 43 while avoiding stress concentration. A guide chamfer is provided at the orifice of the first mounting section 421 to facilitate quick alignment and installation of the material distribution components 43. A fluororubber sealing ring is used between the material distribution components 43 and the mounting section to achieve dynamic sealing and prevent dust from entering the threaded mating surfaces.

[0039] Compared to the welded or integrally formed structures in the existing technology, the detachable connection method of this solution makes the replacement and maintenance of the material distribution component 43 more convenient, greatly shortens the equipment maintenance downtime, and allows for quick adjustment of the type and layout of the material distribution component 43 according to different material characteristics.

[0040] Specifically, in another embodiment, the material distribution component 43 adopts a movable pin head design, with the pin head rotatably connected to the mounting base via a pin. The pin is made of stainless steel and its surface is polished to reduce the coefficient of friction. A miniature needle roller bearing is provided between the pin head and the mounting base, allowing the pin head to rotate flexibly. The center of gravity of the pin head is precisely calculated, and when the roller component 42 rotates, the pin head automatically swings outward under the action of centrifugal force, with a maximum swing angle of up to sixty degrees. The tip of the pin head is inlaid with a carbide tip, which improves wear resistance while maintaining sufficient impact toughness.

[0041] In another preferred embodiment, the nail head is rolledly connected to the first mounting part 421 via a ball joint, enabling multi-degree-of-freedom movement. That is, the first mounting part 421 has a ball socket, and the material distribution part 43 is correspondingly provided with a spherical bearing 433 connected to the ball socket ball joint; this further enhances its adaptability to irregularly shaped materials.

[0042] Compared to the fixed material distribution structure in the prior art, the movable nail head design of this solution can adapt to long strips of light materials of different shapes and sizes, and produce a dynamic pushing effect under the action of centrifugal force, which significantly improves the processing capacity of entangled materials, while reducing the wear of the material distribution component 43 itself.

[0043] Specifically, in another preferred embodiment, the roller component 42 is made of Q235B steel pipe with a wall thickness of 8-12mm, ensuring structural rigidity while controlling equipment weight. The material distribution component 43 is made of 65Mn spring steel, which is quenched and tempered at medium temperature to achieve a surface hardness of HRC45-50, while maintaining sufficient toughness in the core.

[0044] Component 43 is welded using an automated welding robot with a carbon dioxide gas shielded welding process, achieving a weld penetration depth of over 70% of the base material thickness. Post-weld stress-relief annealing is performed to eliminate residual welding stress. Full penetration welding is employed, and ultrasonic testing ensures weld quality.

[0045] In practical use, the material distribution component 43 can also be overlaid with special welding rods to form a highly wear-resistant layer on its surface. Compared with the existing technology of ordinary welding or casting integral molding structure, the material selection and manufacturing process of this solution ensure the service life and reliability of the material distribution mechanism 4 under harsh working conditions, and is particularly suitable for the highly corrosive and abrasive characteristics of the waste treatment environment.

[0046] Specifically, in this embodiment, the surface of the sub-component 43 is coated with a wear-resistant and anti-stick coating 431, which adopts a multi-layer composite structure design. The bottom layer is a nickel-based alloy transition layer with a thickness controlled at about 0.1 mm, mainly serving to enhance the bonding force; the middle layer is a tungsten carbide ceramic particle reinforced composite layer, prepared by supersonic flame spraying process, with a coating thickness of 0.3-0.5 mm and a surface hardness of over HV1000; the top layer is a polyurethane elastomer sealing layer with a thickness of about 0.05 mm, which serves to prevent sticking and provide cushioning.

[0047] The coating surface undergoes a special roughening treatment to ensure both anti-sticking effect and maintain an appropriate coefficient of friction. In another preferred embodiment, the coating uses a micro-nano structured polytetrafluoroethylene composite material, bonded to the substrate through a special sintering process. Compared to the existing technology's ordinary paint protection or no protection, this composite coating system significantly improves the wear resistance and anti-sticking properties of the material distribution component 43, effectively solving the efficiency reduction problem caused by material adhesion, and extending the maintenance cycle and service life.

[0048] Specifically, in this embodiment, the air separation mechanism 2 includes a fan assembly 21, a blowing duct 22, an air box 23, and a return air duct 24. The fan assembly 21 uses a high-pressure centrifugal fan, which is mounted on a vibration-damping platform via an elastic base. The blowing duct 22 adopts a tapered streamline design, with the inlet section having a larger diameter than the outlet section, ensuring smooth airflow acceleration. The first inclined section 221 forms a 30-degree angle with the horizontal plane, and the second inclined section 222 forms a 15-degree angle with the horizontal plane. The two sections are connected by a large-radius arc transition, effectively reducing airflow energy loss.

[0049] The air box 23 adopts a double-layer plate structure, with an inner layer of wear-resistant steel plate and an outer layer of ordinary carbon steel, filled with sound-absorbing material in between. The return air duct 24 is equipped with an airflow distribution device, including a guide plate and a honeycomb rectifier, to ensure uniform airflow distribution. The fan outlet is equipped with a silencer and a flexible connection section to reduce noise and vibration transmission.

[0050] Compared to the simple straight-duct air supply structure in existing technologies, the optimized air duct design of this solution makes the airflow more concentrated and stable, significantly improving the wind energy utilization rate while reducing system noise and energy consumption.

[0051] Preferably, a dust collection assembly is connected to the return air duct 24, which can be a multi-stage combined design. The front stage is equipped with a cyclone dust collector to remove most of the coarse dust particles; the middle stage is equipped with a bag filter using membrane-coated polyester needle-punched felt filter media, achieving a filtration accuracy of up to 0.3μm; the final stage is equipped with a wet scrubber, which uses high-efficiency atomizing nozzles to form a water curtain to capture fine dust particles.

[0052] The dust collectors at each stage are connected by flanges, with sealing gaskets at the interfaces. Cyclone dust collectors are equipped with rotary ash discharge valves at the bottom, baghouse dust collectors are equipped with pulse jet cleaning systems, and wet scrubbers are equipped with automatic water replenishment and water quality monitoring devices.

[0053] In another embodiment, depending on the processing requirements, a combination of cyclone dust collector and bag filter can be used, or a wet scrubber can be used alone. Compared to the single dust removal method in the prior art, the multi-stage combined dust removal system of this solution can adapt to the complex dust characteristics during the waste air separation process, ensure that emissions meet standards, and at the same time realize the recycling of air, which meets the requirements of energy conservation and environmental protection.

[0054] Specifically, in this embodiment, the feeding mechanism 3 includes a first conveyor belt 31 and a second conveyor belt 32. The first conveyor belt 31 is located inside and above the air box 23 and adopts a side-mounted conveyor belt structure. The second conveyor belt 32 is located directly below the roller component 42 and adopts a trough-shaped conveyor belt with transverse anti-slip stripes on the belt surface.

[0055] In the feeding mechanism 1, the lifting conveyor belt 11 adopts a large-angle corrugated sidewall belt, and the lifting angle can reach 60 degrees; the adjustable speed conveyor belt 12 adopts a flat conveyor belt, and the belt width matches that of the lifting conveyor belt 11. The roller component 42 is installed on the frame between the adjustable speed conveyor belt 12 and the first conveyor belt 31 through bearing seats at both ends, and its axis is perpendicular to the running direction of the conveyor belt.

[0056] During operation, the mixed materials are lifted by the lifting conveyor belt 11 and transferred to the adjustable speed conveyor belt 12. They then fall freely at the end of the conveyor belt. As they pass through the material distribution mechanism 4, the material separator 43 agitates the long, light materials. Simultaneously, under the action of airflow, the light materials are blown towards the first conveyor belt 31, while the aggregates fall directly to the second conveyor belt 32. Compared to the simple material separation method in existing technologies, this solution, through the precise coordination of the material distribution mechanism 4 and the dual conveyor belt system, achieves accurate separation and directional conveying of light and heavy materials, greatly improving sorting accuracy and processing efficiency.

[0057] Specifically, in this embodiment, the adjustable speed conveyor belt 12 includes a support frame 121, an annular conveyor belt, a first drive roller 123, and a first speed-regulating motor 124. The support frame 121 adopts a square tube welded structure with hot-dip galvanized surface treatment. The annular conveyor belt is a multi-layer nylon canvas core conveyor belt with an upper cover rubber thickness of 6mm and a lower cover rubber thickness of 3mm.

[0058] The first drive roller 123 has a drum-shaped structure with a herringbone patterned rubber layer on its surface. The first speed-regulating motor 124 is a variable frequency asynchronous motor, connected to the drive roller through a hardened gear reducer. The motor control system uses a vector control frequency converter. The main controller is a programmable logic controller, which communicates with the frequency converter via a PROFIBUS bus to adjust the conveyor belt speed in real time. In this example, the speed adjustment range is 0.1-2.5 m / s.

[0059] In another preferred embodiment, a rotary encoder is used for conveyor belt speed detection to achieve closed-loop control. Compared with existing conveyor systems that use fixed speeds or simple gear adjustments, the precise speed regulation function of this solution enables the equipment to optimize operating parameters in real time according to material characteristics, achieving optimal control of the sorting process and significantly improving system adaptability and energy efficiency.

[0060] Specifically, in this embodiment, the bulk material handling mechanism 4 is equipped with an intelligent control system consisting of a sensing unit and an electronic control unit. The sensing unit uses a high-speed industrial camera equipped with an LED strobe lighting system, and the shooting frequency can reach 1,000 frames per second. The image processing system uses a deep learning algorithm to identify and count the content of long strip-shaped light materials in the material in real time. The electronic control unit uses an industrial-grade PLC, equipped with an analog input / output module and a high-speed counter module.

[0061] The control system has multiple preset operating modes, each corresponding to different material characteristics. When the content of the elongated light material exceeds the set threshold, the PLC outputs a control signal to the frequency converter of the first drive unit 41 to increase the drum speed; when the content is low, the speed is automatically reduced to save energy.

[0062] In another embodiment, the system is also equipped with a current sensor to monitor the drive motor load in real time and achieve overload protection. Compared with the fixed speed operation mode in the prior art, the intelligent speed regulation system of this solution achieves the best match between equipment operating parameters and material characteristics, which not only improves sorting efficiency, but also significantly reduces energy consumption and equipment wear, reflecting the development direction of intelligent sorting.

[0063] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An air separation device for facilitating the separation of light materials and aggregates, comprising a feeding mechanism (1), an air separation mechanism (2), and a conveying mechanism (3), wherein the air separation mechanism (2) is used to screen the mixture conveyed by the feeding mechanism (1) into light materials and aggregates, and the conveying mechanism (3) is used to convey the light materials and aggregates obtained by the air separation mechanism (2) to the next process respectively; the light materials include elongated light materials; characterized in that: It also includes a material dispersing mechanism (4) disposed between the feeding mechanism (1) and the conveying mechanism (3). The material dispersing mechanism (4) includes a first driving member (41), a roller member (42) connected to the first driving member (41), and a material separating member (43) disposed on the roller member (42). The first driving member (41) is used to drive the roller member (42) to rotate so that the material separating member (43) cooperates with the air separation mechanism (2) to transfer the long strip-shaped light material in the mixture to the first conveyor belt (31) in the air box (23).

2. The air separation device for facilitating the separation of lightweight materials and aggregates according to claim 1, characterized in that: The number of the material distribution components (43) is multiple. The material distribution components (43) are protruding from the outer side wall of the roller component (42) in a direction away from the roller component (42). The multiple material distribution components (43) are arranged along the axial direction of the roller component (42) and the multiple material distribution components (43) are arranged along the circumferential direction of the roller component (42).

3. The air separation device for facilitating the separation of lightweight materials and aggregates according to claim 1, characterized in that: The outer side wall of the roller component (42) is provided with a plurality of first mounting portions (421), and the material distribution component (43) is detachably disposed in the first mounting portion (421) of the roller component (42).

4. The air separation device for facilitating the separation of lightweight materials and aggregates according to claim 3, characterized in that: The material distribution component (43) is a movable nail head. The movable nail head is conical and is rotatably or rollingly connected to the first mounting part (421) so that when the roller component (42) rotates, the movable nail head is subjected to centrifugal force and swings outward to move long strip-shaped light materials of different shapes.

5. The air separation device for facilitating the separation of lightweight materials and aggregates according to claim 1, characterized in that: Both the roller component (42) and the material distribution component (43) are made of metal materials. The material distribution component (43) is formed on the outer side wall of the roller component (42) by welding process.

6. The air separation device for facilitating the separation of lightweight materials and aggregates according to claim 1, characterized in that: The surface of the material distribution component (43) is covered with a wear-resistant and non-stick coating (431), which is made of polyurethane or tungsten carbide.

7. The air separation device for facilitating the separation of lightweight materials and aggregates according to claim 1, characterized in that: The air separation mechanism (2) includes a fan assembly (21) for generating airflow, a blower pipe (22) connected to the fan assembly (21), a wind box (23) corresponding to the blower pipe (22), and a return air pipe (24) connected to the wind box (23); the blower pipe (22) has a first inclined section (221) and a second inclined section (222), with an included angle between the first inclined section (221) and the second inclined section (222), and the second inclined section (222) extends toward the inner cavity of the wind box (23). The fan assembly (21) is used to generate high-speed airflow that is blown out through the second inclined section (222) of the blower pipe (22) into the wind box (23).

8. The air separation device for facilitating the separation of lightweight materials and aggregates according to claim 7, characterized in that: The return air duct (24) is connected to a dust removal component. The dust removal component is used to remove dust from the air generated by the air separation of light materials in the return air duct (24) and then send it back to the return air duct (24). The dust removal component is one or more of a wet scrubber, a bag filter, and a cyclone scrubber.

9. The air separation device for facilitating the separation of lightweight materials and aggregates according to claim 7, characterized in that: The feeding mechanism (3) includes a first conveyor belt (31) disposed inside the air box (23) and a second conveyor belt (32) disposed below the roller component (42); the feeding mechanism (1) includes a lifting conveyor belt (11) and an adjustable speed conveyor belt (12), the adjustable speed conveyor belt (12) being located between the lifting conveyor belt (11) and the first conveyor belt (31), and the roller component (42) being located between the adjustable speed conveyor belt (12) and the first conveyor belt (31); The material conveyor belt (11) is used to transport the mixture of light materials and aggregates in the previous station to the adjustable speed conveyor belt (12). The adjustable speed conveyor belt (12) is used to dynamically adjust the conveying speed to cooperate with the air blower (22) and roller (42), so that the light materials are blown up by the high-speed airflow and simultaneously moved by the rotating material distribution component (43) to the first conveyor belt (31). The aggregates fall to the second conveyor belt (32) under the action of gravity.

10. The air separation device for facilitating the separation of lightweight materials and aggregates according to claim 1, characterized in that: The bulk material mechanism (4) also includes a sensing unit and an electronic control unit electrically connected to the first driving member (41). The sensing unit is used to detect the content of long strip-shaped light substances in the mixture and generate a detection signal to be transmitted to the electronic control unit. The electronic control unit is configured to receive the detection signal, compare it with a preset threshold range, and output a control command to the first drive member (41) based on the comparison result, so as to dynamically adjust the rotation speed of the roller member (42).

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