Device for recycling waste asphalt into recycled asphalt concrete

Abstract

The utility model belongs to the field of road construction especially is waste old asphalt recycling asphalt concrete's device, in view of the problem of the existing recovery processing equipment impurity separation not thoroughly and filter screen blockage, this device melts asphalt concrete through the electric heating wire in heating box, and the melted asphalt flows into the inclined cavity of funnel box through the gap of support strip, and enters the distributing bin through the inclined hole. The arc plate with filter hole is arranged in the distributing bin to filter impurities, and the filtered asphalt is discharged through the bottom discharge box. The arc plate is periodically rotated by the driving backboard of servo motor, and moves horizontally under the action of tension spring when it is separated from the arc support rod, which pushes the impurities out of the pollution discharge hole. By arranging the electric heating wire inside the heating box, when the crushed asphalt concrete is put into the heating box, the electric heating wire is started to quickly heat the asphalt concrete, which makes the asphalt melt rapidly. The impurities left after filtration are pushed out through the inclined chute to the gap between the two arc plates, and finally discharged through the pollution discharge hole.

Description

Technical Field

[0001] This utility model belongs to the field of road construction and relates to a device for recycling waste asphalt and regenerating asphalt concrete. Background Technology

[0002] Asphalt concrete is a widely used and important material in road construction and maintenance. As roads age, a large amount of waste asphalt concrete is generated. Traditional methods often involve simply landfilling or discarding this waste asphalt concrete, which not only results in a huge waste of resources but also has a serious negative impact on the environment.

[0003] On the one hand, waste asphalt concrete contains a large amount of reusable asphalt and aggregate. If it can be effectively recycled and reused in road construction, it can significantly reduce dependence on non-renewable resources such as natural sand and gravel, reduce the damage to the ecological environment caused by mining activities, and conform to the concept of sustainable development.

[0004] On the other hand, in the recycling and processing of waste asphalt concrete, how to efficiently separate asphalt from its impurities is a key challenge in achieving asphalt recycling. Existing recycling equipment and technologies have many shortcomings in separating asphalt from impurities. For example, some equipment has poor filtration efficiency, making it difficult to completely remove large impurities from the asphalt, resulting in unstable quality of the recycled asphalt concrete and failing to meet the requirements of road engineering. In other equipment, impurities easily clog the filter during the filtration process, requiring frequent shutdowns for cleaning, which not only reduces processing efficiency but also increases production costs.

[0005] Therefore, developing a waste asphalt concrete recycling and regeneration device that can effectively heat waste asphalt concrete and achieve efficient separation of asphalt and impurities has become an urgent technical problem to be solved in the field of road engineering. Utility Model Content

[0006] In view of this, in order to solve the above-mentioned technical problems, this utility model provides an apparatus for recycling waste asphalt and regenerating asphalt concrete.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for recycling waste asphalt and regenerating asphalt concrete, comprising:

[0008] The material distribution bin has a panel fixedly installed on one side. The inside of the material distribution bin has a mounting hole, and a back plate is rotatably installed inside the mounting hole. Multiple grooves are opened on one side of the back plate, and filter components for filtering asphalt are installed inside the grooves.

[0009] A funnel box is fixedly connected to one side of the panel, and a heating box is fixedly connected to the top of the funnel box. The heating box contains a heating component for heating asphalt.

[0010] The bottom of the material distribution bin is equipped with a discharge assembly for separating and discharging materials.

[0011] Furthermore, the filter assembly includes a slider that is slidably connected inside the chute. A tension spring is provided between one side of the slider and the inner wall of one side of the chute. An arc-shaped plate is fixedly installed on one side of the slider, and multiple filter holes are opened inside the arc-shaped plate.

[0012] Furthermore, a protective plate is fixedly installed on one side of the arc-shaped plate to cover the slide groove, and a stop block is fixedly installed on one side of the arc-shaped plate, with an inclined groove on one side of the stop block.

[0013] Furthermore, the heating assembly includes a fixed inclined plate fixedly installed on the inner wall of the heating box, multiple heating wires fixedly installed inside the fixed inclined plate, multiple support strips fixedly installed between one end of the fixed inclined plate and one side of the inner wall of the heating box, an inclined cavity is opened inside the funnel box, and an inclined hole is opened inside the panel, with the inclined hole and the inclined cavity connected.

[0014] Furthermore, the material discharge assembly includes a discharge hole at the bottom of the material distribution bin, a discharge box fixedly installed at the middle of the bottom of the material distribution bin, the discharge box and the discharge hole being connected, and support legs fixedly installed on both sides of the bottom of the material distribution bin, with anti-slip plates fixedly installed on the bottom of the support legs.

[0015] Furthermore, the discharge assembly also includes two drain holes respectively opened on both sides of the bottom of the distribution bin. A discharge plate is fixedly installed on the inner wall of one side of the drain hole, and two symmetrically arranged side plates are fixedly installed on one side of the discharge plate.

[0016] Furthermore, a connecting rod is fixedly installed on one side of the heating box, and a mounting plate is fixedly installed on one end of the connecting rod. A protective box is fixedly installed on the bottom side of the mounting plate, and a servo motor is fixedly installed inside the protective box. The output shaft of the servo motor is fixedly connected to one side of the back plate.

[0017] Furthermore, a fixed arc-shaped baffle is fixedly installed on one inner wall of the panel. The fixed arc-shaped baffle is located in the upper half of the panel. An arc-shaped support rod is fixedly installed on one side of the panel. A diagonal rod is fixedly installed at one end of the arc-shaped support rod. The arc-shaped support rod is located below the fixed arc-shaped baffle. The diagonal rod is inclined. Both the diagonal rod and the arc-shaped support rod are used in conjunction with the arc-shaped plate.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The apparatus for recycling and regenerating asphalt concrete from waste asphalt disclosed in this utility model uses an electric heating wire installed inside a heating box. When the crushed asphalt concrete is put into the heating box, the electric heating wire is activated to quickly heat the asphalt concrete, causing the asphalt to melt rapidly. This heating method is direct and effective, which can greatly shorten the asphalt melting time and improve the efficiency of the entire recycling process.

[0020] 2. The device for recycling waste asphalt and regenerating asphalt concrete disclosed in this utility model allows the melted asphalt to be discharged through the gaps between multiple support bars and smoothly fed into the distribution bin through the inclined surface and inclined holes of the inclined cavity. In the distribution bin, the asphalt first enters the annular interior of the fixed arc-shaped baffle, and then undergoes preliminary filtration through multiple arc-shaped plates below. This design ensures a smooth asphalt discharge process, and the preliminary filtration effectively removes some larger particles of impurities, improving the purity of the asphalt.

[0021] 3. The device for recycling waste asphalt and regenerating asphalt concrete disclosed in this utility model, after filtering for a period of time, starts a servo motor to drive the back plate to rotate, thereby causing multiple arc-shaped plates to rotate and change positions. During the repositioning process, after the arc-shaped plates disengage from the arc-shaped support rods, the slider, under the tension of the tension spring, drives the arc-shaped plates to move laterally, pushing the impurities left by filtration through the inclined groove to the gap between the two arc-shaped plates, and finally discharging them through the drain hole. This automated impurity cleaning method avoids the trouble of frequent manual cleaning, reduces downtime, and improves production efficiency. At the same time, when the arc-shaped plates rotate alternately, the arc-shaped plate on the other side that is about to contact the arc-shaped support rod will reset inward along the inclined surface of the inclined rod, and will be abutted when it moves to the side of the arc-shaped support rod in the next rotation, so that the multiple arc-shaped plates below are always in contact with each other, ensuring the continuity and stability of the asphalt filtration process.

[0022] 4. The apparatus for recycling waste asphalt and producing recycled asphalt concrete disclosed in this utility model, through the aforementioned series of refined heating, filtration, and impurity removal processes, effectively removes impurities from waste asphalt concrete, producing high-quality recycled asphalt. The recycled asphalt can be reused in road construction and other projects, realizing the resource-based reuse of waste asphalt concrete, reducing dependence on natural resources, and minimizing environmental pollution, thus achieving good economic and environmental benefits.

[0023] 5. The device for recycling and regenerating asphalt concrete from waste asphalt disclosed in this utility model has a compact and reasonable structural design. All components work seamlessly together, with each step closely connected from the input, heating, and filtration of asphalt concrete to the discharge of impurities. The operation process is simple and easy to understand. Operators only need to start the equipment according to the corresponding steps to realize the recycling and regeneration process of waste asphalt concrete, reducing operational difficulty and labor intensity.

[0024] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0026] Figure 1 This is a three-dimensional structural diagram of the device for recycling and regenerating asphalt concrete based on waste asphalt proposed in this utility model.

[0027] Figure 2 This is a two-dimensional structural diagram of the device for recycling and regenerating asphalt concrete from waste asphalt, as proposed in this utility model.

[0028] Figure 3 This is a three-dimensional cross-sectional view of the panel in the device for recycling and regenerating asphalt concrete according to this utility model.

[0029] Figure 4 This is a three-dimensional structural diagram of the material distribution bin and back plate in the device for recycling and regenerating asphalt concrete from waste asphalt proposed in this utility model.

[0030] Figure 5 This is a three-dimensional structural diagram of the material distribution bin and discharge plate in the device for recycling and regenerating asphalt concrete from waste asphalt proposed in this utility model.

[0031] Figure 6 This is a three-dimensional structural diagram of the back plate and the fixed arc-shaped baffle in the device for recycling and regenerating asphalt concrete from waste asphalt proposed in this utility model.

[0032] Figure 7 This is an exploded structural diagram of the arc-shaped plate and the stop block in the device for recycling and regenerating asphalt concrete from waste asphalt proposed in this utility model.

[0033] In the diagram: 1. Panel; 2. Funnel box; 3. Heating box; 4. Mounting plate; 5. Distributor bin; 6. Discharge plate; 7. Support leg; 8. Discharge box; 9. Connecting rod; 10. Back plate; 11. Side plate; 12. Protective box; 13. Fixed inclined plate; 14. Support bar; 15. Arc plate; 16. Drain hole; 17. Discharge hole; 18. Fixed arc baffle; 19. Mounting round hole; 20. Anti-slip plate; 21. Servo motor; 23. Slide groove; 24. Inclined rod; 25. Arc support rod; 26. Slider; 27. Tension spring; 28. Protective plate; 29. ​​Filter hole; 30. Inclined groove; 31. Stop block; 32. Inclined hole; 33. Inclined cavity; 34. Heating wire. Detailed Implementation

[0034] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] Reference Figure 1-7 The device for recycling waste asphalt into asphalt concrete consists of a distribution hopper 5, a funnel box 2, a heating box 3, and related components. A panel 1 is fixedly installed on one side of the distribution hopper 5. A circular hole 19 is opened inside the distribution hopper 5, and a back plate 10 is rotatably installed within the circular hole 19, allowing the back plate 10 to rotate around the axis of the circular hole 19. Multiple grooves 23 are opened on one side of the back plate 10, and a filter assembly is installed in each groove 23. The installation process of the filter assembly is as follows: first, a tension spring 27 is placed in the groove 23, with one end of the tension spring 27 connected to the inner wall of one side of the groove 23; then, a slider 26 is slidably connected in the groove 23, with one side of the slider 26 connected to the other end of the tension spring 27; finally, an arc-shaped plate 15 is fixedly installed on the other side of the slider 26, and multiple filter holes 29 are opened inside the arc-shaped plate 15 for filtering the asphalt. A protective plate 28 is fixedly installed on one side of the arc-shaped plate 15. The function of the protective plate 28 is to shield the slide groove 23 and prevent impurities such as asphalt from entering the slide groove 23 and affecting the sliding of the slider 26. At the same time, a stop block 31 is fixedly installed on the other side of the arc-shaped plate 15, and an inclined groove 30 is opened on one side of the stop block 31.

[0036] A funnel box 2 is fixedly connected to one side of panel 1, and a heating box 3 is fixedly connected to the top of funnel box 2. A heating assembly is installed inside heating box 3, specifically: a fixed inclined plate 13 is fixedly installed on the inner wall of heating box 3, and multiple heating wires 34 are fixedly installed inside the fixed inclined plate 13 to heat the asphalt concrete placed into heating box 3. Multiple support strips 14 are fixedly installed between one end of the fixed inclined plate 13 and one side of the inner wall of heating box 3, with gaps between the support strips 14 to allow the molten asphalt to pass through. An inclined cavity 33 is formed inside funnel box 2, and an inclined hole 32 is formed inside panel 1, ensuring that the inclined hole 32 and the inclined cavity 33 are connected, allowing the molten asphalt to smoothly enter the distribution bin 5 from heating box 3 through the inclined cavity 33 and the inclined hole 32.

[0037] A discharge assembly is installed at the bottom of the distribution silo 5, comprising two parts: discharge and sludge discharge. Discharge section: A discharge hole 17 is provided at the bottom of the distribution silo 5. A discharge box 8 is fixedly installed at the center of the bottom of the distribution silo 5, connecting the discharge box 8 to the discharge hole 17. Filtered asphalt is discharged through the discharge hole 17 into the discharge box 8. Support legs 7 are fixedly installed on both sides of the bottom of the distribution silo 5, and anti-slip plates 20 are fixedly installed at the bottom of the support legs 7 to ensure the stability of the device during operation. Sludge discharge section: Two sludge discharge holes 16 are provided on both sides of the bottom of the distribution silo 5. A discharge plate 6 is fixedly installed on the inner wall of one side of the sludge discharge hole 16, and two symmetrically arranged side plates 11 are fixedly installed on one side of the discharge plate 6. When impurities are discharged through the sludge discharge holes 16, the discharge plate 6 and the side plates 11 guide and prevent impurities from scattering.

[0038] A connecting rod 9 is fixedly installed on one side of the heating box 3, and a mounting plate 4 is fixedly installed on one end of the connecting rod 9. A protective box 12 is fixedly installed on the bottom side of the mounting plate 4. The servo motor 21 is fixedly installed inside the protective box 12, and the output shaft of the servo motor 21 is fixedly connected to one side of the back plate 10. The back plate 10 is driven to rotate by the servo motor 21.

[0039] A fixed arc-shaped baffle 18 is fixedly installed on the inner wall of one side of panel 1, so that the fixed arc-shaped baffle 18 is located in the upper half of panel 1. An arc-shaped support rod 25 is fixedly installed on one side of panel 1, and a diagonal rod 24 is fixedly installed at one end of the arc-shaped support rod 25. The arc-shaped support rod 25 is located below the fixed arc-shaped baffle 18. The diagonal rod 24 is inclined, and both the diagonal rod 24 and the arc-shaped support rod 25 are used in conjunction with the arc-shaped plate 15 to control the position and movement of the arc-shaped plate 15.

[0040] The device operates as follows: Crushed asphalt concrete is fed into the heating box 3. The heating wire 34 is activated, heating the asphalt concrete and melting the asphalt. The melted asphalt is discharged through the gaps between multiple support bars 14, and then fed into the distribution bin 5 through the inclined surface and inclined holes 32 of the inclined cavity 33. After entering the distribution bin 5, the asphalt is fed into the annular interior of the fixed arc-shaped baffle 18 and filtered through multiple lower arc-shaped plates 15. Large impurities are blocked by the arc-shaped plates 15, while the asphalt leaks out through the filter holes 29 on the arc-shaped plates 15, and is then discharged through the discharge hole 17 and the discharge box 8.

[0041] After filtering for a period of time, the servo motor 21 is started. The output shaft of the servo motor 21 drives the back plate 10 to rotate, and the back plate 10 drives multiple arc plates 15 to rotate, realizing the rotation and repositioning of the arc plates 15. At this time, the lower arc plate 15 disengages from the arc support rod 25, the limit is released, and the slider 26 moves laterally under the tension of the tension spring 27, driving the arc plate 15 to move laterally. As the arc plate 15 moves to one side, it also drives the side protective plate 28 to move laterally. Since the filtered impurities will remain on another stop 31, the inclined groove 30 cooperates with the impurities. When the next arc plate 15 rotates, it will push the impurities into the gap between the two arc plates 15, and finally discharge them through the drain hole 16, realizing the separation of impurities and asphalt.

[0042] As multiple arc-shaped plates 15 rotate alternately, the arc-shaped plate 15 located on the other side that is about to contact the arc-shaped support rod 25 will contact the inclined rod 24. The arc-shaped plate 15 resets inward along the inclined plane of the inclined rod 24, and when it moves to the side of the arc-shaped support rod 25 during the next rotation, it is abutted by the arc-shaped support rod 25, ensuring that the multiple arc-shaped plates 15 below are always in contact with each other, thus guaranteeing the continuity and stability of the asphalt filtration process. This device can effectively heat waste asphalt concrete, achieve efficient separation of asphalt and impurities, improve the quality of recycled asphalt, reduce dependence on natural resources, reduce environmental pollution, and at the same time improve processing efficiency and reduce production costs.

[0043] Working principle: When in use, the crushed asphalt concrete is put into the heating box 3. At this time, the heating wire 34 can be activated. The heating wire 34 heats the asphalt concrete, thereby melting the asphalt. The melted asphalt is discharged through the gap between multiple support bars 14. The asphalt is discharged through the inclined surface and inclined hole 32 of the inclined cavity 33 and sent into the interior of the distribution bin 5. The asphalt is sent into the annular interior of the fixed arc baffle 18 and filtered through multiple lower arc plates 15. Large impurities are blocked by the arc plates 15, and the asphalt leaks out through the arc plates 15 and is sent out through the discharge hole 17 and the discharge box 8.

[0044] After filtering for a period of time, the servo motor 21 is started. The output shaft of the servo motor 21 drives the back plate 10 to rotate, and the back plate 10 drives multiple arc plates 15 to rotate. At this time, the arc plates 15 can rotate and change position. At this time, the lower arc plate 15 is disengaged from the arc support rod 25, and the limit of the arc plate 15 is released. At this time, the slider 26 moves laterally under the tension of the tension spring 27. The slider 26 drives the arc plate 15 to move laterally, and the arc plate 15 moves to one side. The arc plate 15 drives the side protective plate 28 to move laterally. Since the filtered impurities will remain on another stop 31, the inclined groove 30 cooperates with the impurities. When the next arc plate 15 rotates, it will push the impurities into the gap between the two arc plates 15. Finally, it is discharged through the drain hole 16, realizing the separation of impurities and asphalt.

[0045] When multiple arc-shaped plates 15 rotate alternately, the arc-shaped plate 15 located on the other side that is about to contact the arc-shaped support rod 25 will contact the inclined rod 24. At this time, the arc-shaped plate 15 will reset inward along the inclined plane of the inclined rod 24, and move to the side of the arc-shaped support rod 25 in the next rotation, where it will be abutted by the arc-shaped support rod 25, so that the multiple arc-shaped plates 15 below always abut against each other, ensuring the filtration of asphalt.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for recycling waste asphalt and regenerating asphalt concrete, characterized in that, include: The material distribution bin (5) has a panel (1) fixedly installed on one side. The material distribution bin (5) has an installation hole (19) inside. A back plate (10) is rotatably installed inside the installation hole (19). A plurality of sliding grooves (23) are provided on one side of the back plate (10). A filter assembly for filtering asphalt is provided inside the sliding groove (23). The filter assembly includes a slider (26) slidably connected inside the sliding groove (23). A tension spring (27) is provided between one side of the slider (26) and the inner wall of one side of the sliding groove (23). An arc plate (15) is fixedly installed on one side of the slider (26). A plurality of filter holes (29) are provided inside the arc plate (15). A funnel box (2) is fixedly connected to one side of the panel (1), and a heating box (3) is fixedly connected to the top of the funnel box (2). A heating component for heating asphalt is provided inside the heating box (3). The heating component includes a fixed inclined plate (13) fixedly installed on the inner wall of the heating box (3). Multiple heating wires (34) are fixedly installed inside the fixed inclined plate (13). Multiple support strips (14) are fixedly installed between one end of the fixed inclined plate (13) and one side of the inner wall of the heating box (3). An inclined cavity (33) is opened inside the funnel box (2). An inclined hole (32) is opened inside the panel (1). The inclined hole (32) and the inclined cavity (33) are connected. The bottom of the material distribution bin (5) is provided with a discharge assembly for discharging materials separately.

2. The apparatus for recycling waste asphalt and regenerating asphalt concrete according to claim 1, characterized in that, A protective plate (28) is fixedly installed on one side of the arc plate (15). The protective plate (28) is used to shield the slide (23). A stop block (31) is fixedly installed on one side of the arc plate (15). A slanted groove (30) is opened on one side of the stop block (31).

3. The apparatus for recycling waste asphalt and regenerating asphalt concrete according to claim 1, characterized in that, The discharge assembly includes a discharge hole (17) at the bottom of the distribution bin (5), a discharge box (8) is fixedly installed at the middle position of the bottom of the distribution bin (5), the discharge box (8) and the discharge hole (17) are connected, and support legs (7) are fixedly installed on both sides of the bottom of the distribution bin (5), and anti-slip plates (20) are fixedly installed on the bottom of the support legs (7).

4. The apparatus for recycling waste asphalt and regenerating asphalt concrete according to claim 1, characterized in that, The discharge assembly also includes two drain holes (16) respectively opened on both sides of the bottom of the distribution bin (5). A discharge plate (6) is fixedly installed on one side of the inner wall of the drain hole (16), and two symmetrically arranged side plates (11) are fixedly installed on one side of the discharge plate (6).

5. The apparatus for recycling waste asphalt and regenerating asphalt concrete according to claim 1, characterized in that, A connecting rod (9) is fixedly installed on one side of the heating box (3), and an mounting plate (4) is fixedly installed on one end of the connecting rod (9). A protective box (12) is fixedly installed on the bottom side of the mounting plate (4). A servo motor (21) is fixedly installed inside the protective box (12), and the output shaft of the servo motor (21) is fixedly connected to one side of the back plate (10).

6. The apparatus for recycling waste asphalt and regenerating asphalt concrete according to claim 1, characterized in that, A fixed arc-shaped baffle (18) is fixedly installed on one side of the inner wall of the panel (1). The fixed arc-shaped baffle (18) is located in the upper half of the panel (1). An arc-shaped support rod (25) is fixedly installed on one side of the panel (1). A diagonal rod (24) is fixedly installed at one end of the arc-shaped support rod (25). The arc-shaped support rod (25) is located below the fixed arc-shaped baffle (18). The diagonal rod (24) is inclined. Both the diagonal rod (24) and the arc-shaped support rod (25) are used in conjunction with the arc-shaped plate (15).

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