Batching device for asphalt mixture with high RAP mixing amount

Abstract

The utility model relates to the technical field of asphalt mixture equipment, and discloses a high RAP mixing amount asphalt mixture batching device which comprises a supporting frame, a first motor is arranged on the side wall of the supporting frame, a stirring assembly is arranged on the side wall of the supporting frame, a metering frame is fixedly connected to the side wall of the supporting frame, and a filtering assembly is arranged on the side wall of the metering frame. A vibration assembly is arranged on the side wall of the metering frame; and the filtering assembly comprises a filtering plate, the side wall of the metering frame is fixedly connected with a filtering frame, and the interior of the filtering frame is fixedly connected with a fixing plate. The second motor is started to drive the rotating wheel, the rotating shaft and the first eccentric wheel, the first eccentric wheel extrudes the filter plate to slide, the connecting rod slides in the fixing plate and extrudes the spring, the first eccentric wheel continuously rotates to enable the spring to reset repeatedly, the filter plate vibrates, materials are screened through the screen holes, and the materials meeting the particle size smoothly pass through. And the particle size of the screened material reaches the standard.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt mixture equipment, and in particular to a high RAP content asphalt mixture batching device. Background Technology

[0002] In the field of road engineering, the concept of sustainable development has become a core driving force for industry development. With the continuous expansion of infrastructure construction, the renovation and reconstruction of old asphalt pavements is increasing, generating a large amount of recycled asphalt pavement material (RAP). The emergence of high RAP content asphalt mixture technology provides an effective way to efficiently utilize RAP. Using this high RAP content asphalt mixture can significantly reduce the mining and use of new aggregates and asphalt, reducing dependence on natural resources, reducing waste emissions, alleviating environmental pressure, and lowering project costs.

[0003] In the current preparation process of high RAP (Rapid Acid Content) asphalt mixtures, traditional fixed screen equipment is mostly used for the screening of RAP materials. This equipment has a relatively simple structure, mainly consisting of a fixed screen frame and supporting structure. Its working principle is that the material enters from the top inlet and falls naturally under gravity. When passing through the screen, particles smaller than the screen aperture pass through, while larger particles are intercepted above the screen, thus achieving preliminary screening of the material.

[0004] Because RAP has a wide range of sources, a complex and diverse internal composition, irregular particle shapes, and significant differences in hardness, it may also be mixed with impurities such as soil and stones during recycling and transportation. When these complex RAP materials pass through a fixed screen, larger or oddly shaped particles can easily get stuck in the screen's pores. Over time, more and more material accumulates on the screen surface, causing the pores to become clogged. Once the screen is clogged, the material throughput is significantly reduced, and the efficiency of the entire screening process drops sharply. A clogged screen cannot guarantee uniform and stable material passage, resulting in inconsistent particle sizes in the screened material. This makes it difficult to accurately meet the stringent particle size requirements of high-RAP-content asphalt mixtures, thus affecting the performance and quality of subsequent mixtures. Therefore, a high-RAP-content asphalt mixture batching device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high RAP content asphalt mixture batching device, which aims to improve the problems of easy material clogging of screens and low filtration efficiency in the traditional static filtration method in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high RAP content asphalt mixture batching device includes a support frame, a motor is installed on the side wall of the support frame, a mixing assembly is installed on the side wall of the support frame, a metering frame is fixedly connected to the side wall of the support frame, a filter assembly is installed on the side wall of the metering frame, and a vibration assembly is installed on the side wall of the metering frame.

[0008] The filter assembly includes a filter plate, a filter frame is fixedly connected to the side wall of the metering frame, a fixing plate is fixedly connected inside the filter frame, the side wall of the filter plate is slidably connected inside the filter frame, a rotating shaft is rotatably connected inside the filter frame, an eccentric wheel is fixedly connected to the side wall of the rotating shaft, a rotating wheel is rotatably connected to the side wall of the filter frame, a connecting belt is provided between the rotating wheels, a motor is provided on the side wall of the filter frame, a connecting rod is fixedly connected to the side wall of the filter plate, a spring is provided on the side wall of the connecting rod, and a discharge pipe is fixedly connected to the side wall of the filter frame.

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

[0010] The vibration assembly includes an impact block, a feed pipe is fixedly connected to the upper surface of the filter frame, and a fixing frame is fixedly connected to the upper surface of the filter frame.

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

[0012] The side wall of the fixed frame is rotatably connected to an eccentric wheel, and the side wall of the fixed frame is fixedly connected to a fixing block.

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

[0014] The eccentric wheel is fixedly connected to two side walls with rotating rods, and a fixed rod is slidably connected inside the fixed block. The side walls of the rotating rods are rotatably connected inside the fixed rods.

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

[0016] The side wall of the impact block is fixedly connected to the side wall of the fixed rod, the side wall of the impact block is in contact with the side wall of the feed pipe, and the side wall of the fixed frame is fixedly connected to the motor three, the output end of the motor three is connected to the eccentric wheel two.

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

[0018] The second output end of the motor is connected to the rotating wheel on one side, and the side wall of the connecting rod is slidably connected inside the fixed plate.

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

[0020] One end of the spring is fixedly connected to the side wall of the filter plate, and the other end of the spring is fixedly connected to the side wall of the fixing plate.

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

[0022] The mixing assembly includes a mixing frame and a stirrer. The side wall of the mixing frame is fixedly connected to the side wall of the support frame, and the side wall of the stirrer is rotatably connected inside the mixing frame. One output end of the motor is connected to the stirrer.

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

[0024] 1. In this utility model, after the RAP enters the filter frame through the feed pipe, the second motor is started, driving one side of the rotating wheel to rotate through the connecting belt, which in turn drives the rotating shaft and the first eccentric wheel. The first eccentric wheel squeezes the filter plate, causing it to slide inside the filter frame, driving the connecting rod to slide inside the fixed plate and squeeze the spring. The first eccentric wheel continues to rotate, and the spring repeatedly resets, causing the filter plate to vibrate and screen the material through the sieve holes, allowing the material that meets the particle size requirements to pass through. This solves the problems of easy material clogging of the screen and low filtration efficiency in traditional static filtration methods. The above technical solution improves the filtration accuracy and ensures that the screened material particle size meets the requirements.

[0025] 2. In this utility model, to prevent RAP from clogging in the feed pipe, the third motor is started, which drives the second eccentric wheel to rotate. The rotating rod moves accordingly, pushing the fixed rod to slide in the fixed block, which drives the impact block to hit the side wall of the feed pipe, helping the material to enter the filter frame. This solves the problem that RAP is easy to clog in the feed pipe, causing the material to be unable to enter the filter frame smoothly. The above technical solution improves the smoothness of material conveying. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a high RAP content asphalt mixture batching device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the mixer in a high RAP content asphalt mixture batching device proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the batching device structure of a high RAP content asphalt mixture batching device proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the internal structure of the batching device for a high RAP content asphalt mixture batching device proposed in this utility model.

[0030] Legend:

[0031] 1. Support frame; 2. Motor 1; 3. Mixing frame; 4. Agitator; 5. Metering frame; 6. Filter frame; 7. Fixing plate; 8. Filter plate; 9. Rotating shaft; 10. Eccentric wheel 1; 11. Rotating wheel; 12. Connecting belt; 13. Motor 2; 14. Connecting rod; 15. Spring; 16. Discharge pipe; 17. Feed pipe; 18. Fixing frame; 19. Eccentric wheel 2; 20. Fixing block; 21. Rotating rod; 22. Fixing rod; 23. Impact block; 24. Motor 3. 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 Figure 1 - Figure 4This utility model provides an embodiment of a high RAP content asphalt mixture batching device, including a support frame 1, a motor 2 mounted on the side wall of the support frame 1, a stirring assembly mounted on the side wall of the support frame 1, a metering frame 5 fixedly connected to the side wall of the support frame 1, the metering frame 5 being used to accurately measure the amount of material entering the device to ensure accurate batching ratio, a filter assembly mounted on the side wall of the metering frame 5, and a vibration assembly mounted on the side wall of the metering frame 5; the filter assembly includes a filter plate 8, a filter frame 6 fixedly connected to the side wall of the metering frame 5, the filter plate 8 screening the material through sieve holes to allow material meeting the particle size requirements to pass through, a fixing plate 7 fixedly connected inside the filter frame 6, the side wall of the filter plate 8 slidably connected inside the filter frame 6, a rotating shaft 9 rotatably connected inside the filter frame 6, an eccentric wheel 10 fixedly connected to the side wall of the rotating shaft 9, the rotating shaft 9 providing support and a rotation shaft for the rotation of the eccentric wheel 10, the eccentric wheel 10 generating eccentric motion during rotation, pushing the filter plate 8 to slide. A rotating wheel 11 is rotatably connected to the side wall of the filter frame 6. A connecting belt 12 is provided between the rotating wheels 11 to connect the two rotating wheels 11 and realize the transmission of power. A motor 13 is provided on the side wall of the filter frame 6. A connecting rod 14 is fixedly connected to the side wall of the filter plate 8. A spring 15 is provided on the side wall of the connecting rod 14. The spring 15 plays a role in buffering and resetting when the filter plate 8 slides. A discharge pipe 16 is fixedly connected to the side wall of the filter frame 6. The output end of the motor 13 is connected to one rotating wheel 11. The side wall of the connecting rod 14 is slidably connected to the inside of the fixed plate 7. One end of the spring 15 is fixedly connected to the side wall of the filter plate 8, and the other end of the spring 15 is fixedly connected to the side wall of the fixed plate 7. The stirring assembly includes a stirring frame 3 and a stirrer 4. The side wall of the stirring frame 3 is fixedly connected to the side wall of the support frame 1. The side wall of the stirrer 4 is rotatably connected to the inside of the stirring frame 3. The output end of the motor 2 is connected to the stirrer 4. The stirrer 4 stirs the material in the stirring frame 3 to mix it.

[0034] Reference Figure 1 - Figure 4The vibration assembly includes an impact block 23. A feed pipe 17 is fixedly connected to the upper surface of the filter frame 6, used to introduce material into the filter frame 6. A fixing frame 18 is fixedly connected to the upper surface of the filter frame 6. An eccentric wheel 19 is rotatably connected to the side wall of the fixing frame 18. A fixing block 20 is fixedly connected to the side wall of the fixing frame 18, providing installation and support for components such as the eccentric wheel 19. A rotating rod 21 is fixedly connected to the side wall of the eccentric wheel 19. A fixing rod 22 is slidably connected inside the fixing block 20. The rotating rod 21... The wall is rotatably connected inside the fixed rod 22. The side wall of the impact block 23 is fixedly connected to the side wall of the fixed rod 22. The side wall of the impact block 23 is in contact with the side wall of the feed pipe 17. The side wall of the fixed frame 18 is fixedly connected to the motor 3 24. The output end of the motor 3 24 is connected to the eccentric wheel 2 19. The eccentric wheel 2 19 generates eccentric motion during rotation, which drives the fixed rod 22 and the impact block 23 to move. The vibration generated by the impact block 23 hitting the feed pipe 17 can prevent the material from clogging in the feed pipe 17 and promote the smooth entry of the material into the filter frame 6.

[0035] Working principle: To prevent RAP from clogging in the feed pipe 17, the motor 24 is started. The motor 24 drives the eccentric wheel 19 to rotate. The rotating rod 21 moves with the rotation of the eccentric wheel 19. The movement of the rotating rod 21 pushes the fixed rod 22 to slide inside the fixed block 20, which in turn drives the impact block 23 to impact the side wall of the feed pipe 17, thereby promoting the smooth entry of the material into the filter frame 6.

[0036] After the RAP enters the filter frame 6 through the feed pipe 17, the second motor 13 is started. The second motor 13 drives the rotating wheel 11 on one side to rotate. Through the transmission of the connecting belt 12, the rotating wheel 11 on the other side also rotates. The rotating wheel 11 drives the rotating shaft 9 to rotate, and the rotating shaft 9 in turn drives the eccentric wheel 10 to rotate. During the rotation, the eccentric wheel 10 continuously squeezes the filter plate 8, causing the filter plate 8 to slide inside the filter frame 6. At the same time, the movement of the filter plate 8 causes the connecting rod 14 to slide inside the fixed plate 7, and the filter plate 8 will squeeze the spring 15. As the eccentric wheel 10 continues to rotate, the spring 15 returns to its original position. This process is repeated, and the filter plate 8 vibrates, screening the material through the sieve holes, allowing the material that meets the particle size requirements to pass through.

[0037] 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 high RAP content asphalt mixture batching plant comprising a support frame (1), characterized in that: The support frame (1) is provided with a motor (2) on its side wall, a stirring assembly is provided on its side wall, a metering frame (5) is fixedly connected to its side wall, a filter assembly is provided on its side wall, and a vibration assembly is provided on its side wall. The filter assembly includes a filter plate (8), a filter frame (6) is fixedly connected to the side wall of the metering frame (5), a fixing plate (7) is fixedly connected inside the filter frame (6), the side wall of the filter plate (8) is slidably connected inside the filter frame (6), a rotating shaft (9) is rotatably connected inside the filter frame (6), an eccentric wheel (10) is fixedly connected to the side wall of the rotating shaft (9), a rotating wheel (11) is rotatably connected to the side wall of the filter frame (6), a connecting belt (12) is provided between the rotating wheels (11), a motor (13) is provided on the side wall of the filter frame (6), a connecting rod (14) is fixedly connected to the side wall of the filter plate (8), a spring (15) is provided on the side wall of the connecting rod (14), and a discharge pipe (16) is fixedly connected to the side wall of the filter frame (6).

2. The high-RAP-content asphalt mixture batching device according to claim 1, characterized in that: The vibration assembly includes an impact block (23), a feed pipe (17) is fixedly connected to the upper surface of the filter frame (6), and a fixing frame (18) is fixedly connected to the upper surface of the filter frame (6).

3. The high-RAP-content asphalt mixture batching device according to claim 2, characterized in that: The side wall of the fixed frame (18) is rotatably connected to an eccentric wheel (19), and the side wall of the fixed frame (18) is fixedly connected to a fixing block (20).

4. The high-RAP-content asphalt mixture batching device according to claim 3, characterized in that: The eccentric wheel (19) is fixedly connected to a rotating rod (21) on its side wall, and a fixed rod (22) is slidably connected inside the fixed block (20). The side wall of the rotating rod (21) is rotatably connected inside the fixed rod (22).

5. A high RAP content asphalt mixture batching device according to claim 4, characterized in that: The side wall of the impact block (23) is fixedly connected to the side wall of the fixed rod (22). The side wall of the impact block (23) is in contact with the side wall of the feed pipe (17). The side wall of the fixed frame (18) is fixedly connected to the motor three (24). The output end of the motor three (24) is connected to the eccentric wheel two (19).

6. The high-RAP-content asphalt mixture batching device according to claim 1, characterized in that: The output end of the second motor (13) is connected to the rotating wheel (11) on one side, and the side wall of the connecting rod (14) is slidably connected to the inside of the fixed plate (7).

7. The high-RAP-content asphalt mixture batching device according to claim 1, characterized in that: One end of the spring (15) is fixedly connected to the side wall of the filter plate (8), and the other end of the spring (15) is fixedly connected to the side wall of the fixing plate (7).

8. The high-RAP-content asphalt mixture batching device according to claim 1, characterized in that: The stirring assembly includes a stirring frame (3) and a stirrer (4). The side wall of the stirring frame (3) is fixedly connected to the side wall of the support frame (1), and the side wall of the stirrer (4) is rotatably connected inside the stirring frame (3). The output end of the motor (2) is connected to the stirrer (4).

Images