Asphalt resource recycling and screening device

Abstract

The utility model relates to the technical field of asphalt recovery, and discloses an asphalt resource recycling and screening device which comprises a workbench, a processing box is fixedly connected to the top of the workbench, a screening mechanism is fixedly connected to the outer portion of the processing box, and supporting legs are fixedly connected to the four corners of the bottom of the workbench. And connecting rollers are fixedly connected to the sides, close to each other, of the two supporting legs, the connecting rollers are sleeved with a conveying belt, and anti-falling mechanisms are fixedly connected to the outer portions of the supporting legs. According to the utility model, the motor is connected to the driven wheel through the driving wheel and the belt so as to drive the beating roller to rotate at high speed. The rotation of the striking roller strikes and turns over asphalt materials, so that the materials with smaller particle sizes can fall down through the sieve plate to realize screening, and the two operations are carried out at the same time, so that the operation time of equipment is fully utilized, the quantity of materials treated in unit time is greatly increased, and the overall working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of asphalt recycling technology, and in particular to a screening device for asphalt resource recycling. Background Technology

[0002] In specialized asphalt recycling plants, screening devices are key equipment in the entire recycled asphalt production process. They finely screen the recycled asphalt material, separating aggregates of different particle sizes. For example, coarser aggregates are used to produce recycled asphalt mixtures for base or subbase layers, while finer aggregates are used to adjust the gradation of the mixture, producing recycled asphalt mixtures for the surface layer. Through the multi-stage screening function of the screening device, the gradation of the recycled asphalt mixture can be precisely controlled, improving the performance of the recycled asphalt.

[0003] The screen plate vibrates or rolls under the action of a motor or other driving device. The amplitude and frequency of vibration or rolling are adjusted as needed to ensure that asphalt particles are evenly distributed on the screen plate.

[0004] In some existing devices, smaller particles pass through the mesh of the screen and enter the collection space inside the cylinder when material falls. Larger particles, unable to pass through the screen, continue moving forward with the rotation of the cylinder until they are discharged from the other end. This rotary screening method allows material to be screened under relatively gentle motion, reducing impact and breakage. However, in practical use, separate feeding and screening operations are required, necessitating more manual intervention. Operators need to constantly monitor the screening progress to ensure timely feeding after screening, increasing the frequency of manual operation. Therefore, to address the above problems, an asphalt resource recycling screening device is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a screening device for asphalt resource recycling, which aims to improve the problem that some existing devices cannot screen materials while feeding them.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A screening device for recycling asphalt resources includes a workbench, a processing box fixedly connected to the top of the workbench, a screening mechanism fixedly connected to the outside of the processing box, support legs fixedly connected to the four corners of the bottom of the workbench, a connecting roller fixedly connected to the adjacent side of two of the support legs, a conveyor belt sleeved on the outside of the connecting roller, and an anti-dropping mechanism fixedly connected to the outside of the support legs.

[0008] The screening mechanism includes a support plate, a motor fixedly connected to the top of the support plate, a drive wheel fixedly connected to the drive end of the motor, a belt sleeved on the outside of the drive wheel, an impact roller fixedly connected to the drive end of the motor, a screen plate slidably connected inside the processing box, multiple limiting components fixedly connected inside the processing box, a feeding component fixedly connected to the top of the processing box, a driven rod fixedly connected to the outside of the feeding component, a driven wheel fixedly connected to the outside of the driven rod, and the support plate fixedly connected to the outside of the processing box.

[0009] As a further description of the above technical solution:

[0010] The limiting component includes a fixed plate, a sliding rod slidably connected to the outside of the fixed plate, a spring sleeved on the outside of the sliding rod, and the fixed plate is fixedly connected to the four corners inside the processing box.

[0011] As a further description of the above technical solution:

[0012] The feeding assembly includes a feeding box, and multiple baffles are rotatably connected to the outside of the driven rod. The baffles are rotatably connected to the inside of the feeding box, and the outside of the feeding box is fixedly connected to the top of the processing box.

[0013] As a further description of the above technical solution:

[0014] The anti-fall-off mechanism includes a housing, a telescopic rod slidably connected to the outside of the housing, a spring II sleeved on the outside of the telescopic rod, a correction plate fixedly connected to the outside of the telescopic rod, and the outside of the housing fixedly connected to the outside of the support leg.

[0015] As a further description of the above technical solution:

[0016] A collection box is fixedly connected to the outside of the support leg, and the outside of the collection box is in contact with the outside of the conveyor belt;

[0017] As a further description of the above technical solution:

[0018] The sliding rod is fixedly connected to the outside of the sieve plate, and the spring is fixedly connected to the outside of the sieve plate.

[0019] As a further description of the above technical solution:

[0020] The correction plate is slidably connected to the outside of the conveyor belt, and the correction plate is slidably connected to the outside of the housing.

[0021] As a further description of the above technical solution:

[0022] One end of the spring is fixedly connected to the outside of the sieve plate, and the other end of the spring is fixedly connected to the outside of the fixed plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the motor is connected to the driven wheel via a drive wheel and a belt, thereby driving the impact roller to rotate at high speed. The rotation of the impact roller strikes and tumbles the asphalt material, allowing smaller particles to fall through the screen plate, thus achieving screening. Performing these two operations simultaneously makes full use of the equipment's running time, significantly increasing the amount of material processed per unit time, thereby improving overall work efficiency.

[0025] 2. In this invention, the correction plate comes into contact with the material, causing it to press against the telescopic rod. The anti-drop mechanism, through the correction plate and the telescopic rod, promptly corrects the conveyor belt's deviation, ensuring the stability of the material during transport. Material detachment can lead to equipment malfunctions, such as clogging the discharge port or interfering with motor operation. The anti-drop design minimizes these risks. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a screening device for asphalt resource recycling proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the sieve plate of an asphalt resource recycling screening device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the conveyor belt structure of an asphalt resource recycling and screening device proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the collection box of a screening device for asphalt resource recycling proposed in this utility model.

[0030] Legend:

[0031] 1. Workbench; 2. Processing box; 3. Support plate; 4. Motor; 5. Drive wheel; 6. Belt; 7. Feed box; 8. Driven rod; 9. Baffle; 10. Driven wheel; 11. Screen plate; 12. Impact roller; 13. Fixed plate; 14. Sliding rod; 15. Spring 1; 16. Support leg; 17. Conveyor belt; 18. Housing; 19. Telescopic rod; 20. Spring 2; 21. Correction plate; 22. Collection box; 23. Connecting roller. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3 A screening device for asphalt resource recycling includes a workbench 1, which serves as the basic support platform for the entire screening device. The workbench 1 is typically made of robust and corrosion-resistant metal materials, such as carbon steel or stainless steel. Its structural design is carefully calculated to ensure sufficient strength and stability. A processing box 2 is fixedly connected to the top of the workbench 1. The processing box 2 is the core area for asphalt resource screening, and its material is generally matched to that of the workbench 1, possessing good sealing and corrosion resistance. The shape and size of the processing box 2 are designed according to the requirements of the screening process and the processing capacity, with a reasonable internal space layout. A screening mechanism is fixedly connected to the outside of the processing box 2. Support legs 16 are fixedly connected to the four corners of the bottom of the workbench 1. The support legs 16 serve as the supporting structure of the device, providing stable vertical support for the entire equipment. The support legs 16 are typically made of metal tubing or profiles, such as round steel pipes or angle steel, which have high strength and rigidity, capable of withstanding significant weight and pressure. Connecting rollers 23 are fixedly connected to adjacent sides of the two support legs 16. Connecting rollers 23 are key components for the operation of the conveyor belt 17, and are generally made of metal, such as carbon steel or alloy steel. The diameter and length of the connecting rollers 23 are designed according to the width of the conveyor belt 17 and the operating requirements. Their surfaces are finely machined to have good roundness and smoothness, reducing friction and wear on the conveyor belt 17 during operation. The conveyor belt 17 is fitted over the connecting rollers 23. The conveyor belt 17 is used to transport asphalt materials and is generally made of rubber or a rubber-fabric composite material.

[0034] The surface of the conveyor belt 17 has a certain frictional force, which can effectively grip and transport asphalt materials, preventing the materials from slipping during the conveying process. An anti-slip mechanism is fixedly connected to the external support leg 16. The anti-slip mechanism includes a housing 18, which serves as the outer shell of the anti-slip mechanism, providing protection and installation space for the internal moving parts. A telescopic rod 19 is slidably connected to the external shell 18. The telescopic rod 19 is a key adjusting component of the anti-slip mechanism, consisting of nested rods. The inner and outer rods are generally made of metal, such as stainless steel or aluminum alloy, which has good strength and wear resistance. A second spring 20 is sleeved on the external side of the telescopic rod 19. The second spring 20 provides elastic restoring force for the anti-slip mechanism, ensuring that the correction plate 21 can tightly fit the conveyor belt 17 and promptly correct any deviation in the material's direction. The telescopic rod 19 is externally fixedly connected to a correction plate 21. The correction plate 21 is a component that directly contacts and corrects the conveyor belt 17. Its material is generally metal, such as steel plate or aluminum plate, and its surface is specially treated, such as being covered with a rubber layer or having plastic sliders installed, to reduce friction and wear when in contact with the conveyor belt 17. The housing 18 is externally fixedly connected to the outside of the support leg 16.

[0035] The screening mechanism includes a support plate 3, with a motor 4 fixedly connected to the top of the support plate 3. The motor 4 is the power source of the screening mechanism and is typically a three-phase asynchronous motor with sufficient power and torque to meet the power requirements for the high-speed rotation of the impact roller 12 and the operation of the entire screening mechanism. A drive wheel 5 is fixedly connected to the drive end of the motor 4. The drive wheel 5 and the drive end of the motor 4 are connected by a key or coupling, ensuring a firm and reliable connection and efficient transmission of the power from the motor 4. A belt 6 is fitted around the drive wheel 5. The belt 6 is a transmission component connecting the drive wheel 5 and the driven wheel 10, and its material is generally rubber or polyurethane, which has good flexibility and wear resistance. A striking roller 12 is fixedly connected to the drive end of motor 4. The striking roller 12 is a key component for dispersing and screening asphalt materials. It is generally made of metal, such as carbon steel or alloy steel, and its surface is equipped with striking blades or protrusions. The shape, size, and distribution of these striking blades or protrusions are carefully designed to effectively strike and tumble the asphalt materials during rotation, allowing smaller particles to fall through the screen plate 11 and achieve the screening purpose. The screen plate 11 is slidably connected inside the processing box 2. The screen plate 11 is the component that directly screens the asphalt materials. It is generally made of metal, such as stainless steel or perforated steel plate. The aperture size of the screen plate 11 is determined according to the screening requirements for asphalt resource recycling. There are usually multiple specifications available to achieve the separation of materials of different particle sizes.

[0036] The processing box 2 has multiple fixed limiting components internally, including a fixed plate 13. The fixed plate 13 serves as the basic fixing component of the limiting assembly and is generally made of metal, such as steel or aluminum. Its shape and size are designed according to the internal structure of the processing box 2 and the installation position of the screen plate 11. The connection with the processing box 2 uses secure methods such as welding or bolting to ensure that it will not loosen or fall off during equipment operation. A sliding rod 14 is externally slidably connected to the fixed plate 13. The sliding rod 14 is a key moving component of the limiting assembly and is generally made of metal, such as stainless steel or alloy steel. Its diameter and length are determined according to the size of the fixed plate 13 and the movement range of the screen plate 11. A spring 15 is sleeved on the outside of the sliding rod 14. The spring 15 provides elastic buffering force to the screen plate 11, reducing the impact of the impact roller 12 and materials on the screen plate 11 and extending the service life of the screen plate 11. Under normal conditions, the spring 15 is in a certain compressed or stretched state, providing a preload force to the screen plate 11. When the screen plate 11 is impacted by the impact roller 12 or the material, the sliding rod 14 slides on the fixed plate 13, and the spring 15 is further compressed or stretched to store elastic potential energy. When the impact disappears, the spring 15 releases the elastic potential energy, causing the screen plate 11 to return to its initial position and continue the screening operation. The fixed plate 13 is externally fixedly connected to the four corners inside the processing box 2. The top of the processing box 2 is fixedly connected to the feeding assembly, which includes the feed box 7. The feed box 7 serves as a container for storing and conveying asphalt materials. Its material is generally metal, such as carbon steel or stainless steel, and has good sealing and corrosion resistance. Multiple baffles 9 are externally rotatably connected to the driven rod 8. The shape and size of the baffles 9 are designed according to the internal structure of the feed box 7 and the feeding requirements. They are usually long strips or plates. The rotatable connection between the baffles 9 and the driven rod 8 adopts a bearing or bushing structure to ensure that the baffles 9 can rotate flexibly on the driven rod 8.

[0037] The external rotatable connection of baffle 9 is to the inside of feed box 7, and the external fixed connection of feed box 7 is to the top of processing box 2. A driven rod 8 is fixedly connected to the external of the feeding assembly. Driven rod 8 serves as the transmission component of the feeding assembly; its material is generally metal, such as carbon steel or alloy steel, and its diameter and length are determined according to the dimensions of feed box 7 and the installation requirements of baffle 9. A driven wheel 10 is fixedly connected to the external of driven rod 8. Driven wheel 10 is connected to drive wheel 5 via belt 6. When motor 4 drives drive wheel 5 to rotate, belt 6 drives driven wheel 10 to rotate, thereby driving driven rod 8 and baffle 9 to rotate, achieving the feeding function. The external fixed connection of support plate 3 is to the outside of processing box 2.

[0038] Reference Figures 3 to 4The support leg 16 is externally fixedly connected to a collection box 22. The collection box 22 is an important component of the device used to collect screened materials or waste. Its material is typically a sturdy and corrosion-resistant metal, such as stainless steel or galvanized steel plate. Its shape and size are carefully designed according to actual needs, generally in the form of a cuboid or prism, with sufficient capacity to hold various materials generated during the screening process. The exterior of the collection box 22 is in contact with the exterior of the conveyor belt 17, and the exterior of the sliding rod 14 is fixedly connected to the exterior of the screen plate 11, so that materials falling from the conveyor belt 17 can smoothly slide into the collection box 22.

[0039] Spring 15 is externally fixedly connected to the outside of screen plate 11, and the outside of correction plate 21 is externally slidably connected to the outside of conveyor belt 17. Correction plate 21 is externally slidably connected to the outside of housing 18. One end of spring 15 is fixedly connected to the outside of screen plate 11, and the other end of spring 15 is fixedly connected to the outside of fixed plate 13. This ensures that the connection between spring 15 and fixed plate 13 will not loosen or fall off during equipment operation, thereby ensuring the stability and reliability of the entire elastic buffer system and guaranteeing the normal screening operation of screen plate 11 in processing box 2.

[0040] Working Principle: The screening process is achieved through the coordinated operation of the workbench 1, processing box 2, and screening mechanism. The workbench 1, as the basic support platform, is made of robust and corrosion-resistant metal, providing stable support. The processing box 2 is the core area for asphalt resource screening; its internal space is rationally designed to meet the requirements of different screening processes. The screening mechanism is driven by a motor 4, which is connected to the driven wheel 10 via a drive wheel 5 and a belt 6, thereby driving the impact roller 12 to rotate at high speed. The rotation of the impact roller 12 strikes and agitates the asphalt material, allowing smaller particles to fall through the screen plate 11, thus achieving screening. The rotation of the driven wheel 10 causes it to drive the baffle 9 to rotate via the driven rod 8, which in turn allows the baffle 9 to carry the material through the feed box 7 into the interior of the processing box 2.

[0041] During the screening process, the screen plate 11 directly screens the asphalt material. Its aperture is designed according to the screening requirements to separate materials of different particle sizes. To reduce the impact of the impact roller 12 on the screen plate 11, the limiting assembly provides elastic cushioning through the sliding rod 14 and spring 15, extending the service life of the screen plate. After screening, the material is conveyed to the collection box 22 via the conveyor belt 17. The collection box is used to collect the material or waste generated after screening, ensuring cleanliness and efficiency of the operation. In addition, the correction plate 21 comes into contact with the material, causing it to press against the telescopic rod 19. The anti-drop mechanism, through the correction plate 21 and the telescopic rod 19, promptly corrects the deviation of the conveyor belt, ensuring the stability of the material during the conveying process.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A screening device for asphalt resource recycling, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a processing box (2), and a screening mechanism is fixedly connected to the outside of the processing box (2). Support legs (16) are fixedly connected to the four corners of the bottom of the workbench (1). A connecting roller (23) is fixedly connected to the adjacent side of the two support legs (16). A conveyor belt (17) is sleeved on the outside of the connecting roller (23). An anti-dropping mechanism is fixedly connected to the outside of the support legs (16). The screening mechanism includes a support plate (3), a motor (4) is fixedly connected to the top of the support plate (3), a drive wheel (5) is fixedly connected to the drive end of the motor (4), a belt (6) is sleeved on the outside of the drive wheel (5), an impact roller (12) is fixedly connected to the drive end of the motor (4), a screen plate (11) is slidably connected inside the processing box (2), a plurality of limiting components are fixedly connected inside the processing box (2), a feeding component is fixedly connected to the top of the processing box (2), a driven rod (8) is fixedly connected to the outside of the feeding component, a driven wheel (10) is fixedly connected to the outside of the driven rod (8), and the support plate (3) is fixedly connected to the outside of the processing box (2).

2. The asphalt resource recycling screening device according to claim 1, characterized in that: The limiting component includes a fixed plate (13), a sliding rod (14) is slidably connected to the outside of the fixed plate (13), a spring (15) is sleeved on the outside of the sliding rod (14), and the fixed plate (13) is fixedly connected to the four corners inside the processing box (2).

3. The asphalt resource recycling screening device according to claim 2, characterized in that: The feeding assembly includes a feeding box (7), and a plurality of baffles (9) are rotatably connected to the outside of the driven rod (8). The outside of the baffles (9) is rotatably connected to the inside of the feeding box (7), and the outside of the feeding box (7) is fixedly connected to the top of the processing box (2).

4. The asphalt resource recycling screening device according to claim 3, characterized in that: The anti-fall mechanism includes a housing (18), a telescopic rod (19) is slidably connected to the outside of the housing (18), a spring (20) is sleeved on the outside of the telescopic rod (19), a correction plate (21) is fixedly connected to the outside of the telescopic rod (19), and the outside of the housing (18) is fixedly connected to the outside of the support leg (16).

5. The asphalt resource recycling screening device according to claim 4, characterized in that: A collection box (22) is fixedly connected to the outside of the support leg (16), and the outside of the collection box (22) is in contact with the outside of the conveyor belt (17).

6. The asphalt resource recycling screening device according to claim 2, characterized in that: The sliding rod (14) is fixedly connected to the outside of the sieve plate (11), and the spring (15) is fixedly connected to the outside of the sieve plate (11).

7. The asphalt resource recycling screening device according to claim 5, characterized in that: The external side of the correction plate (21) is slidably connected to the outside of the conveyor belt (17), and the external side of the correction plate (21) is slidably connected to the outside of the housing (18).

8. The asphalt resource recycling screening device according to claim 2, characterized in that: One end of the spring (15) is fixedly connected to the outside of the sieve plate (11), and the other end of the spring (15) is fixedly connected to the outside of the fixed plate (13).

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