Asphalt waste impurity removal device in environment-friendly asphalt concrete production line

Abstract

The invention relates to the technical field of asphalt concrete waste recovery, in particular to an asphalt waste impurity removal device in an environment-friendly asphalt concrete production line. The vibration separation mechanism is used for screening and conveying the asphalt waste; the bag-type dust collector is used for collecting impurities in the asphalt waste; and the air blowing mechanism is used for blowing hot air to the asphalt waste. By arranging the vibration separation mechanism, the air blowing mechanism and the mixing mechanism, the mixing mechanism can secondarily utilize hot air generated by combustion in the production line to provide hot air for the air blowing mechanism, the vibration separation mechanism and the air blowing mechanism are combined, and hot air with controllable direction and temperature can be blown into the vibration separation mechanism while vibration separation is conducted; according to the device, impurities can be blown away, blockage can be prevented, and comprehensive removal of the impurities in the asphalt waste is realized, so that the quality of the asphalt waste as a recycled material is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of asphalt concrete waste recycling, in particular to an asphalt waste impurity removal device in an environment-friendly asphalt concrete production line. BACKGROUND

[0002] After laying for a long time, the asphalt concrete gradually loses its original performance, that is, the road surface needs to be removed and repaved after a long period of use. The asphalt pavement material is recycled by a large milling machine, and then the recycled asphalt pavement material is collected together as recycled material and re-input into the production line.

[0003] The existing asphalt waste is directly added to the production line as recycled material after being crushed by a crusher and then being lifted by an elevator. However, during the recycling and conveying process of the asphalt waste, there are a large amount of impurities such as soil, dust, and weeds, which will have an adverse effect on the quality of the asphalt concrete if not removed. In addition, the asphalt waste itself has a certain viscosity, especially when it contains moisture or has a high temperature, it is easy to re-agglomerate into blocks during the crushing and screening process. Moreover, the particle size range of the asphalt waste is too large when the crusher crushes the asphalt waste, which will have an adverse effect on the quality of the new asphalt concrete produced from the recycled asphalt waste.

[0004] In view of this, an asphalt waste impurity removal device in an environment-friendly asphalt concrete production line is proposed. SUMMARY

[0005] The purpose of the present application is to provide an asphalt waste impurity removal device in an environment-friendly asphalt concrete production line, which solves the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: An asphalt waste impurity removal device in an environment-friendly asphalt concrete production line, comprising a flexible crusher for crushing asphalt waste; a vibrating separation mechanism for screening and conveying the asphalt waste; a bag-type dust collector for collecting impurities in the asphalt waste; a blowing mechanism for hot air blowing of the asphalt waste; The flexible crusher and the vibrating separation mechanism are connected, and the vibrating separation mechanism is fixedly connected with the bag-type dust collector and the blowing mechanism through a connecting piece, and the blowing mechanism is fixedly installed on the ground through a mounting frame.

[0007] Preferably, the vibrating separation mechanism comprises a vibrating box body, a plurality of vibrating screens are fixedly installed in the vibrating box body, and a plurality of baffles are fixedly installed on the vibrating screens.

[0008] Preferably, the plurality of baffles are arranged in an array, and the lengths of the plurality of baffles gradually decrease.

[0009] Preferably, the air blowing mechanism comprises an air equalizing pipe, a plurality of branch pipes are fixedly installed on the air equalizing pipe, an adjusting valve is fixedly installed on the branch pipe, the branch pipe is arranged in parallel with the vibrating screen, and an air outlet assembly is fixedly connected to the air equalizing pipe.

[0010] Preferably, the air outlet assembly has two groups, one group of the air outlet assembly is located above the vibrating screen and has an isosceles trapezoidal structure in cross section, and the other group of the air outlet assembly is located below the vibrating screen and has a trapezoidal structure with staggered end faces in cross section.

[0011] Preferably, a plurality of inclined plates are fixedly installed in the air outlet assembly, a sliding groove is formed in the air outlet assembly, a sliding plate is fixedly installed in the sliding groove, and a connecting rod is fixedly installed at the top end of the sliding plate.

[0012] Preferably, a screw rod is threadedly connected to each end of the connecting rod, a fixed block is rotatably installed at the bottom end of the screw rod, and the fixed block is fixedly installed on the mounting frame.

[0013] Preferably, the device further comprises a mixing mechanism, the mixing mechanism comprises a mixing box, a hot air pipe is fixedly installed at one end of the mixing box, a cold air pipe is fixedly installed at the other end of the mixing box, an air outlet pipe is fixedly installed on the box body of the mixing box, and a heat-resistant air blower is fixedly installed on the air outlet pipe.

[0014] Preferably, the heat-resistant air blower is connected to a three-way valve through a pipeline, an air exhaust pipe is connected to one end of the three-way valve, and the other end of the three-way valve is fixedly connected to the air equalizing pipe.

[0015] Preferably, an air inlet groove is formed in one side of the vibrating box body, the air inlet groove is in communication with the air outlet assembly, an air outlet groove is formed in the other side of the vibrating box body, the air outlet groove is in communication with the bag-type dust collector, a feeding port is formed in one end of the vibrating box body, the feeding port is in communication with the flexible crusher, an outlet is formed in the other end of the vibrating box body, and a plurality of baffle curtains are fixedly installed on the outlet.

[0016] By means of the above technical scheme, the asphalt waste impurity removal device in the environment-friendly asphalt concrete production line has at least the following beneficial effects: (1) The present invention sets up a vibration separation mechanism, a blower mechanism and a mixing mechanism. The mixing mechanism can reuse the hot air generated by combustion in the production line to provide hot air for the blower mechanism. The vibration separation mechanism is combined with the blower mechanism. While vibrating and screening, hot air with controllable direction and temperature can be blown into the vibration separation mechanism. This can blow away impurities and prevent blockage, thus achieving the comprehensive removal of impurities in asphalt waste and effectively improving the quality of asphalt waste as recycled material.

[0017] (2) This invention, through the combination of a vibration separation mechanism and a blower mechanism, allows for the simultaneous blowing of controlled-temperature hot air from both above and below the vibrating screen. The horizontal airflow from above blows away the light impurities that have been shaken up, which are then collected by a bag filter. The upward-sloping hot air from below not only further blows up impurities but also dries the screen, effectively preventing fine materials from adhering and clogging. Simultaneously, materials of different masses move along different trajectories under the influence of the airflow, achieving precise separation by mass. This, in turn, reduces the particle size range of asphalt waste and improves its quality.

[0018] In addition, the horizontal hot air, in conjunction with the array of baffles, blows the lighter asphalt waste towards the side closer to the air outlet, so that the lighter asphalt waste passes through fewer baffles and thus stays on the vibrating screen for a shorter time. This allows the residence time of the asphalt waste on the vibrating screen to be controlled according to the quality of the asphalt waste, thereby controlling the moisture content of asphalt waste with different particle sizes.

[0019] (3) By setting up a mixing mechanism, the waste heat emitted from combustion on the asphalt concrete production line is introduced through a hot air pipe and mixed with fresh air from a cold air pipe. After being regulated by a heat-resistant fan and a three-way valve, the mixture is supplied to the blowing mechanism, thereby realizing the recovery and utilization of waste heat and significantly reducing the operating energy consumption of the device. Attached Figure Description

[0020] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the vibration separation mechanism of the present invention; Figure 4 This is a schematic diagram of the overall structure of the blower mechanism and mixing mechanism of the present invention; Figure 5 This is a schematic diagram of the overall structure of the vibration separation mechanism and the blower mechanism of the present invention; Figure 6 This is a schematic diagram of the branch pipe and its connecting parts according to the present invention.Figure 1 ; Figure 7 This is a schematic diagram of the branch pipe and its connecting parts according to the present invention. Figure 2 ; Figure 8 This is a schematic diagram of the enlarged structure of the air outlet component of the present invention. Figure 1 ; Figure 9 This is a schematic diagram of the enlarged structure of the air outlet component of the present invention. Figure 2 ; Figure 10 This is a schematic diagram of the sliding plate and its connecting part of the present invention; Figure 11 This is a schematic cross-sectional view of the air outlet assembly of the present invention.

[0021] In the diagram: 1. Flexible crusher; 2. Vibrating separation mechanism; 3. Bag filter; 4. Blower mechanism; 5. Mixing mechanism; 6. Connecting parts; 21. Vibrating box; 22. Feed inlet; 23. Vibrating screen; 24. Baffle; 25. Air inlet duct; 26. Air outlet duct; 27. Baffle curtain; 41. Air distribution duct; 42. Branch pipe; 43. Regulating valve; 44. Air outlet assembly; 45. Inclined plate; 46. Sliding groove; 47. Sliding plate; 48. Connecting rod; 49. Lead screw; 410. Fixing block; 51. Mixing box; 52. Hot air duct; 53. Cold air duct; 54. Air outlet duct; 55. Heat-resistant fan; 56. Three-way valve; 57. Exhaust duct. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-11 An asphalt waste removal device for an environmentally friendly asphalt concrete production line includes a flexible crusher 1, used to crush asphalt waste to ensure that the particle size of the recovered asphalt waste meets the addition standards. The flexible crusher 1 is connected to a vibrating separation mechanism 2, which, through vibration and a screen, can screen the crushed asphalt waste, removing small particles that do not meet the particle size requirements, thereby enhancing the stability of the asphalt waste particle size and thus improving the performance and stability of the added asphalt concrete.

[0024] Please see Figure 3The vibration separation mechanism 2 includes a vibration box 21, on which a vibration motor and a spring are fixedly installed to provide vibration for the vibration box 21. A feed inlet 22 is fixedly opened at one end of the vibration box 21, and the feed inlet 22 is connected to the flexible crusher 1 to convey the material crushed by the flexible crusher 1 into the vibration box 21 along the feed inlet 22.

[0025] In this embodiment, multiple vibrating screens 23 are fixedly installed inside the vibrating box 21. Preferably, there are two vibrating screens 23, and the apertures of the two vibrating screens 23 are different, with the aperture of the upper vibrating screen 23 being larger than that of the lower vibrating screen 23. The vibrating screens 23 are inclined, and their highest point is located on one side of the feed inlet 22, so that the crushed asphalt waste can move down along the vibrating screens 23 under the combined action of vibration and gravity, achieving the effects of screening and conveying.

[0026] It is worth noting that multiple baffles 24 are provided on the vibrating screen 23. These baffles 24 are arranged in an array, and their lengths gradually decrease along the inclined direction of the vibrating screen 23. Furthermore, one end of each baffle 24 is located on the same straight line. The baffles 24 can block asphalt waste that is stuck together, preventing it from moving downwards. Simultaneously, the gradually decreasing length of the baffles 24 ensures that they no longer obstruct asphalt waste that meets the particle size requirements, thus accelerating the screening efficiency.

[0027] In this embodiment, the vibrating box 21 has an outlet at the end away from the feed inlet 22, and the outlet is located above the vibrating screen 23. The outlet is used to discharge asphalt waste that meets the particle size standard. In addition, multiple baffles 27 are fixedly installed on the outlet. The baffles 27 are made of flexible materials, such as rubber. The baffles 27 do not block the discharge of asphalt waste, but can also block external impurities and air.

[0028] Please see Figure 2 The vibrating box 21 has an air inlet slot 25 and an air outlet slot 26 on both sides of the vibrating screen 23. A blower mechanism 4 is connected to the air inlet slot 25 to provide hot air to the upper and lower parts of the vibrating screen 23 for dehumidifying and removing impurities from the asphalt waste. A bag filter 3 is connected to the air outlet slot 26 to collect impurities and discharge hot air.

[0029] It should be noted that the blower mechanism 4 is mounted on the ground via a mounting bracket (not shown in the figure), and the vibration box 21, the bag filter 3, and the blower mechanism 4 are all connected by connectors 6, which are made of flexible, heat-resistant materials such as rubber. This ensures that the vibration of the vibration box 21 will not affect the operation of the bag filter 3 or the blower mechanism 4. Furthermore, the connection has good sealing properties, preventing air leakage and other problems.

[0030] Please see Figure 5 The blower mechanism 4 includes an air distribution duct 41, on which multiple branch pipes 42 are fixedly installed, and on each branch pipe 42 a regulating valve 43 is fixedly installed, so that the air volume on the branch pipe 42 can be adjusted by adjusting the opening of the regulating valve 43.

[0031] Please see Figure 6 and Figure 7 The branch pipe 42 is connected to an air outlet assembly 44, which is sealed between the connector 6 and the air inlet groove 25, so that hot air can be blown into the vibrating screen 23 through the air outlet assembly 44 along the connector 6 and the air inlet groove 25.

[0032] It is worth noting that there are two types of air outlet components 44: one type has an isosceles trapezoidal cross-section, and the other type has a trapezoidal cross-section with staggered ends. The air outlet component 44 with the isosceles trapezoidal cross-section is located above the vibrating screen 23, while the air outlet component 44 with the staggered ends is located below the vibrating screen 23.

[0033] Please see Figure 11 The isosceles trapezoidal air outlet component 44 allows hot air to converge, and the blown hot air is a transverse wind parallel to the vibrating screen 23. This blows away the asphalt waste that has been shaken up on the vibrating screen 23, thus removing light impurities from the asphalt waste and blowing smaller particles away from the air inlet sluice 25. At the same time, the hot air blowing can dry the asphalt waste, separating any particles that are stuck together, thereby achieving precise separation of asphalt waste particles.

[0034] In this embodiment, the trapezoidal structure of the air outlet component 44 located below the vibrating screen 23 is specifically such that the angle of the lower inclined side of the trapezoid is greater than the angle of the upper inclined side, so that when the hot air converges, it will blow along the inclined upward direction, thereby drying the vibrating screen 23 and blowing the asphalt waste on the vibrating screen 23 from bottom to top. It can blow up the light material while better dehumidifying the asphalt waste and avoiding clogging on the surface of the vibrating screen 23.

[0035] Please see Figure 8 and Figure 9 Multiple evenly distributed inclined plates 45 are fixedly installed inside the air outlet assembly 44. The inclined plates 45 can divide the space inside the air outlet assembly 44 into multiple even spaces. The inclined direction of the inclined plates 45 is close to the feed inlet 22 of the vibration box 21, so that the hot air blows towards the feed inlet 22, realizing the opposite blowing of the asphalt waste, which can effectively improve the drying and impurity removal efficiency.

[0036] In this embodiment, the air outlet assembly 44 is provided with a sliding groove 46, and a sliding plate 47 is slidably installed in the sliding groove 46. By adjusting the position of the sliding plate 47 in the sliding groove 46, the opening of the sliding groove 46 can be adjusted. In conjunction with the regulating valve 43, the hot air volume and wind speed can be adjusted.

[0037] In this embodiment, a connecting rod 48 is fixedly installed at the top of the sliding plate 47. Both ends of the connecting rod 48 are threadedly connected to lead screws 49. By rotating the lead screws 49, the threaded connection between the lead screws 49 and the connecting rod 48 causes the connecting rod 48 to move, which in turn causes the sliding plate 47 to move, thus adjusting the position of the sliding plate 47. A fixing block 410 is rotatably installed at the bottom of the lead screw 49 and is fixedly mounted on the mounting bracket. The fixing block 410 serves to install and limit the lead screw 49, ensuring that the lead screw 49 can only rotate.

[0038] Please see Figure 4 The air distribution duct 41 is connected to a mixing mechanism 5 via a pipe. The mixing mechanism 5 is used to recover and reuse the hot gas emitted after combustion, and can control the temperature of the hot gas. This prevents the hot gas temperature from being too high, which could cause partial melting of the asphalt, leading to screen blockage and clumping.

[0039] Please see Figure 4 The mixing mechanism 5 includes a mixing box 51, with a hot air pipe 52 and a cold air pipe 53 fixedly connected to the upper and lower ends of the mixing box 51, respectively. Both the hot air pipe 52 and the cold air pipe 53 are equipped with valves, so that the opening of the hot air pipe 52 and the cold air pipe 53 can be adjusted. In addition, the hot air pipe 52 is connected to the exhaust port of the combustion chamber, and the cold air pipe 53 is in communication with the outside air.

[0040] In this embodiment, an air outlet pipe 54 is also fixedly installed on the mixing box 51. The air outlet pipe 54 is connected to a heat-resistant fan 55, which can extract the hot air from the mixing box 51. The air outlet of the heat-resistant fan 55 is connected to a three-way valve 56 through a pipe. The other two ends of the three-way valve 56 are respectively connected to an air distribution pipe 41 and an exhaust pipe 57. The exhaust pipe 57 is used to discharge the hot air and prevent excessive internal air pressure.

[0041] It should be noted that a temperature monitor is installed between the heat-resistant fan 55 and the mixing box 51 to monitor the temperature inside the pipes. Excessively hot or cold air is directly discharged through the exhaust pipe 57. By adjusting the valves on the hot air pipe 52 and the cold air pipe 53, the volume of hot air and air entering the mixing box 51 can be controlled, thereby achieving control of the hot air temperature.

[0042] The working principle of an asphalt waste removal device in an environmentally friendly asphalt concrete production line is as follows: The asphalt concrete production equipment operates, and the combustion chamber neutralizes toxic and harmful gases. The generated hot air is discharged into the atmosphere through pipes. The heat-resistant fan 55 is started, causing the hot air and air generated by combustion to enter the mixing box 51 through the hot air pipe 52 and cold air pipe 53 respectively for mixing. The mixture is then transported through the outlet pipe 54 and a three-way valve 56. The temperature of the mixed hot air is monitored before it enters the distribution pipe 41; it only enters the distribution pipe 41 after the temperature reaches a set range.

[0043] Adjusting the regulating valve 43 and the lead screw 49, the regulating valve 43 can adjust the air intake of the branch pipe 42, and the rotation of the lead screw 49 can drive the connecting rod 48 to move. The displacement of the connecting rod 48 drives the sliding plate 47 to move along the sliding groove 46, thereby controlling the air intake of the air outlet assembly 44.

[0044] Hot air enters the distribution duct 41 through the pipe under the action of the heat-resistant fan 55, and then enters the vibrating box 21 through the branch pipe 42, the air outlet component 44 and the inclined plate 45. Because the air outlet components 44 above and below the vibrating screen 23 have different cross sections, the airflow direction above the vibrating screen 23 is parallel to the vibrating screen 23 and laterally towards the feed inlet 22. The airflow direction below the vibrating screen 23 is both parallel to the vibrating screen 23 and laterally towards the feed inlet 22 and perpendicular to the vibrating screen 23.

[0045] The flexible crusher 1 and the vibrating motor operate. The flexible crusher 1 crushes the asphalt waste and then conveys it to the vibrating screen 23. The vibrating motor drives the vibrating screen 23 to vibrate. When the vibrating screen 23 vibrates, it shakes the asphalt waste on the screen surface. Due to the varying mass of the asphalt waste, the shaking height varies. Asphalt waste that is stuck together has a larger mass and a lower shaking height, making it unable to pass through the baffle 24, it is blocked above the baffle 24. Asphalt waste smaller than the maximum particle size shakes higher than the baffle 24 and moves downward through the baffle 24 under the action of gravity.

[0046] Furthermore, when the vibrating screen 23 is working, the asphalt waste is simultaneously subjected to both horizontal hot air from above and upward hot air from below. This blows light impurities in the asphalt waste laterally into the air outlet duct 26, where they are collected by the bag filter 3. Additionally, the horizontal hot air blows lighter asphalt waste towards the side closer to the air outlet duct 26, reducing the number of baffles 24 that the lighter waste passes through and thus shortening its residence time on the vibrating screen 23. This allows for control of the residence time of the asphalt waste on the vibrating screen 23 based on its quality, thereby achieving a consistent overall dryness of the asphalt waste. The rising hot air from the bottom blows hot air onto the bottom of the asphalt waste and the screen openings of the vibrating screen 23, accelerating the removal of impurities and preventing screen clogging.

[0047] After impurity removal, the asphalt waste is discharged through the baffle 27 and then enters the elevator for secondary utilization. It should be noted that the particle size range of the asphalt waste discharged from the end of the vibrating screen 23 near the air outlet 26 is different from that of the end near the air inlet 25, but both are within the particle size range for asphalt waste recycling, and can be used separately or in combination.

[0048] Small and heavier impurities such as soil and fine stones will fall below the vibrating box 21 and be removed, thus preventing impurities from affecting the production of asphalt concrete.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing asphalt waste in an environmentally friendly asphalt concrete production line, characterized in that, include: Flexible crusher (1) is used for crushing asphalt waste; Vibration separation mechanism (2) is used for screening and conveying asphalt waste; Bag filter (3) is used to collect impurities in asphalt waste; The blower mechanism (4) is used to blow hot air onto asphalt waste; The flexible crusher (1) and the vibration separation mechanism (2) are connected. The vibration separation mechanism (2) is fixedly connected to the bag filter (3) and the blower mechanism (4) by a connector (6). The blower mechanism (4) is fixedly installed on the ground by a mounting bracket.

2. The asphalt waste removal device in an environmentally friendly asphalt concrete production line according to claim 1, characterized in that: The vibration separation mechanism (2) includes a vibration box (21), a plurality of vibrating screens (23) are fixedly installed inside the vibration box (21), and a plurality of baffles (24) are fixedly installed on the vibrating screens (23).

3. The asphalt waste removal device in an environmentally friendly asphalt concrete production line according to claim 2, characterized in that: The baffles (24) are arranged in an array, and the length of the baffles (24) gradually decreases.

4. The asphalt waste removal device in an environmentally friendly asphalt concrete production line according to claim 2, characterized in that: The blower mechanism (4) includes an air distribution pipe (41), on which multiple branch pipes (42) are fixedly installed, and on which regulating valves (43) are fixedly installed. The branch pipes (42) are arranged parallel to the vibrating screen (23), and an air outlet assembly (44) is fixedly connected to the air distribution pipe (41).

5. The asphalt waste removal device in an environmentally friendly asphalt concrete production line according to claim 4, characterized in that: There are two sets of air outlet components (44). One set of air outlet components (44) is located above the vibrating screen (43) and has an isosceles trapezoidal cross section. The other set of air outlet components (44) is located below the vibrating screen (43) and has a trapezoidal cross section with staggered ends.

6. The asphalt waste removal device in an environmentally friendly asphalt concrete production line according to claim 4, characterized in that: Multiple inclined plates (45) are fixedly installed inside the air outlet assembly (44). A sliding groove (46) is provided on the air outlet assembly (44). A sliding plate (47) is fixedly installed inside the sliding groove (46). A connecting rod (48) is fixedly installed at the top of the sliding plate (47).

7. The asphalt waste removal device in an environmentally friendly asphalt concrete production line according to claim 6, characterized in that: Both ends of the connecting rod (48) are threaded with lead screws (49), and a fixing block (410) is rotatably installed at the bottom end of the lead screw (49). The fixing block (410) is fixedly installed on the mounting frame.

8. The asphalt waste removal device in an environmentally friendly asphalt concrete production line according to claim 4, characterized in that: It also includes a mixing mechanism (5), which includes a mixing box (51), one end of which is fixedly installed with a hot air pipe (52), the other end of which is fixedly installed with a cold air pipe (53), an air outlet pipe (54) fixedly installed on the body of the mixing box (51), and a heat-resistant fan (55) fixedly installed on the air outlet pipe (54).

9. The asphalt waste removal device in an environmentally friendly asphalt concrete production line according to claim 8, characterized in that: The heat-resistant fan (55) is connected to a three-way valve (56) via a pipe. One end of the three-way valve (56) is connected to an exhaust pipe (57), and the other end of the three-way valve (56) is fixedly connected to an air distribution pipe (41).

10. The asphalt waste removal device in an environmentally friendly asphalt concrete production line according to claim 4, characterized in that: The vibrating box (21) has an air inlet slot (25) on one side, which is connected to the air outlet assembly (44). The vibrating box (21) has an air outlet slot (26) on the other side, which is connected to the bag filter (3). The vibrating box (21) has a feed inlet (22) at one end, which is connected to the flexible crusher (1). The vibrating box (21) has an outlet at the other end, and multiple baffles (27) are fixedly installed on the outlet.

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