Recovery device for waste asphalt mixture

Abstract

The invention discloses a waste asphalt mixture recovery device. The device comprises a waste asphalt recovery machine body; the feeding and adding mechanism is fixedly connected to the middle of the upper end of the waste asphalt recycling machine body in a penetrating mode, the feeding and adding mechanism can add a waste asphalt mixture into the waste asphalt recycling machine body, and the added waste asphalt mixture can be rotationally crushed through the two asphalt mixture crushing mechanisms; the recycling and grinding mechanism can receive and grind the crushed waste asphalt mixture in the waste asphalt recycling machine body, the bottom discharging mechanism can receive and discharge the waste asphalt mixture ground by the recycling and grinding mechanism, and the pneumatic separation mechanism can blow out gas at the left end of the bottom discharging mechanism. And the asphalt material collecting trolley is located on the outer side of the waste asphalt recycling machine body, so that the separated asphalt materials are conveniently received, and efficient recycling is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of waste asphalt recovery, and in particular to a device for recovering waste asphalt mixture. Background Art

[0002] Waste asphalt refers to used asphalt mixture, which contains a certain proportion of asphalt and aggregate. The recycling and reuse of waste asphalt can reduce the demand for new aggregate and new asphalt, reduce the mining and production costs of raw materials, and reduce damage to the environment. When recycling waste asphalt, a waste asphalt mixture recovery device is required.

[0003] The existing Chinese patent CN221518441U disclosed an asphalt recovery device from waste asphalt mixture on August 13, 2024, including a support frame, an iron chip separation assembly and an impurity separation assembly; the support frame: a processing cylinder is fixedly connected to the middle of its top plate, and a crushing roller is symmetrically rotatably connected between the front and rear side walls of the processing cylinder. The rear end of the core shaft of the crushing roller is provided with a gear, and the two gears are meshed and connected. A motor three is provided at the upper end of the front side of the processing cylinder, and the rear end of the output shaft of the motor three is fixedly connected to the front end of the crushing roller on the right. A material guide hopper is provided in the middle of the inner wall surface of the processing cylinder, and a material extraction pipe is provided at the lower end of the front side wall of the processing cylinder. A heating plate is provided in the internal array of the bottom wall of the processing cylinder; the iron chip separation assembly: rotatably connected to the middle between the front and rear side walls of the processing cylinder.

[0004] However, the above-mentioned device uses heated asphalt for recycling, and the heated asphalt has high adhesion, so during the recycling process, the adhered asphalt material cannot be effectively recycled, which is not very efficient in recycling. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for recycling waste asphalt mixtures to solve the problem that the above-mentioned device proposed in the above-mentioned background technology uses heated asphalt for recycling during recycling, and the heated asphalt has high adhesion, so during the recycling process, the adhered asphalt material cannot be effectively recycled, which is not very efficient.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a device for recycling waste asphalt mixture, comprising:

[0007] Waste asphalt recycling machine body;

[0008] A feed adding mechanism, which is fixedly connected to the middle of the upper end of the waste asphalt recovery machine body;

[0009] Asphalt mixture crushing mechanism, two said asphalt mixture crushing mechanisms are symmetrically and fixedly connected to the waste asphalt recycling machine body, and the said asphalt mixture crushing mechanism is located below the feeding and adding mechanism;

[0010] Recycling and grinding mechanism, the said recycling and grinding mechanism is installed and connected inside the waste asphalt recycling machine body, and the said recycling and grinding mechanism is located below the asphalt mixture crushing mechanism;

[0011] Bottom discharge mechanism, the said bottom discharge mechanism is fixedly connected through the lower end of the recycling and grinding mechanism;

[0012] Pneumatic separation mechanism, the said pneumatic separation mechanism is installed and connected to the left end of the bottom discharge mechanism, and the said pneumatic separation mechanism is connected to the external blower pipe;

[0013] Asphalt material collection trolley, the said asphalt material collection trolley is located outside the waste asphalt recycling machine body.

[0014] Among them, the said waste asphalt recycling machine body includes an asphalt recycling machine case, a collecting conical shell is fixedly connected through the inner side of the lower end of the asphalt recycling machine case, a belt material conveyor is fixedly connected to the asphalt recycling machine case below the collecting conical shell, an inclined discharge plate is fixedly connected below the discharge end of the belt material conveyor, an asphalt material collection trolley is placed below the inclined discharge plate, a feeding and adding mechanism is installed on the inner side of the upper end of the asphalt recycling machine case, an asphalt mixture crushing mechanism is installed on the inner side of the upper end of the asphalt recycling machine case, and a recycling and grinding mechanism is installed on the asphalt recycling machine case below the asphalt mixture crushing mechanism.

[0015] Among them, the said asphalt material collection trolley includes a trolley outer shell, an outer handle bar is fixedly connected to the outer wall of the trolley outer shell, a rotating universal wheel is rotatably installed at the lower end of the trolley outer shell, and a storage and collection cavity is opened on the inner side of the upper end of the trolley outer shell.

[0016] Among them, the said feeding and adding mechanism includes a U-shaped connecting pipe fixedly connected through the asphalt recycling machine case, a pipe U-shaped mounting plate is fixedly connected through the upper end of the U-shaped connecting pipe, a bottom cone pipe is fixedly connected through the lower end of the U-shaped connecting pipe, and the U-shaped connecting pipe is connected to the external waste asphalt adding pipe through the pipe U-shaped mounting plate.

[0017] Among them, the said asphalt mixture crushing mechanism includes a crushing motor installed on the outer wall of the asphalt recycling machine case by screws, a crushing roller is rotatably installed on the asphalt recycling machine case at the output shaft end of the crushing motor, and the crushing motor and the crushing roller are fixedly connected through a coupling.

[0018] Among them, the recycling and grinding mechanism includes a crushing and collecting shell. Both ends of the crushing and collecting shell are fixedly connected with connecting end plates. The crushing and collecting shell is fixedly connected inside the asphalt recycling machine case through the connecting end plates. A horn-shaped collecting cavity is opened on the inner side of the upper end of the crushing and collecting shell. A grinding cavity is opened inside the crushing and collecting shell. A grinding roller is rotatably installed on the crushing and collecting shell inside the grinding cavity. A first coupling is fixedly connected to the rear end of the grinding roller. A grinding motor is installed on the outer wall of the asphalt recycling machine case by screws at the rear end of the first coupling. A bottom discharging mechanism is fixedly connected through the lower end of the crushing and collecting shell.

[0019] Among them, the bottom discharging mechanism includes a crushed stone discharge pipe fixedly connected through the lower end of the crushing and collecting shell. A top collecting cavity is opened on the inner side of the upper end of the crushed stone discharge pipe. A discharge groove cavity communicating with the top collecting cavity is opened on the inner side of the lower end of the crushed stone discharge pipe. An asphalt material discharge hole is opened on the inner side of the right end of the crushed stone discharge pipe. A pneumatic separation mechanism aligned with the asphalt material discharge hole is installed on the inner side of the left end of the crushed stone discharge pipe.

[0020] Among them, an asphalt material dropping gap is opened between the right end of the top collecting cavity and the asphalt recycling machine case.

[0021] Among them, the pneumatic separation mechanism includes a hollow cover plate fixedly connected to the crushed stone discharge pipe. An air inlet connecting pipe passing through the asphalt recycling machine case is fixedly connected through the left end of the hollow cover plate. A hollowed-out panel is fixedly connected to the inner end of the hollow cover plate.

[0022] In summary, due to the adoption of the above technology, the beneficial effects of the present invention are as follows:

[0023] 1. In the present invention, the feeding and adding mechanism can add waste asphalt mixture into the waste asphalt recycling machine body. The added waste asphalt mixture can be rotationally crushed by two asphalt mixture crushing mechanisms. The recycling and grinding mechanism can receive the crushed waste asphalt mixture inside the waste asphalt recycling machine body for grinding. The bottom discharging mechanism can receive the waste asphalt mixture ground by the recycling and grinding mechanism for discharging. The pneumatic separation mechanism can blow out gas at the left end of the bottom discharging mechanism, so as to pneumatically separate the crushed stones and asphalt materials after grinding. The asphalt material collecting trolley is located outside the waste asphalt recycling machine body, which is convenient for receiving the separated asphalt materials, thus facilitating efficient recycling.

[0024] 2. In the present invention, with the pneumatic separation mechanism structure, pneumatic separation is facilitated. The pneumatic separation mechanism can receive external gas through the air inlet connecting pipe and then transport it into the hollow cover plate. The gas inside the hollow cover plate can be discharged through the holes of the hollow panel, which is convenient for separating the grinding materials falling inside the gravel discharge pipe. Since the masses of the asphalt material and the gravel material are different, pneumatic separation can be carried out. The light asphalt material can be blown out, while the gravel falls vertically for discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structure schematic diagram of a waste asphalt mixture recycling device of the present invention;

[0026] Figure 2 is a side sectional structure schematic diagram of a waste asphalt mixture recycling device of the present invention;

[0027] Figure 3 is a combined structure schematic diagram of a recycling and grinding mechanism, a pneumatic separation mechanism and a bottom discharge mechanism of a waste asphalt mixture recycling device of the present invention;

[0028] Figure 4 is a combined structure schematic diagram of a pneumatic separation mechanism and a bottom discharge mechanism of a waste asphalt mixture recycling device of the present invention;

[0029] Figure 5 is a structure schematic diagram of a pneumatic separation mechanism of a waste asphalt mixture recycling device of the present invention;

[0030] Figure 6 is a structure schematic diagram of an asphalt material collection trolley of a waste asphalt mixture recycling device of the present invention;

[0031] Figure 7 is a structure schematic diagram of a feeding and adding mechanism of a waste asphalt mixture recycling device of the present invention.

[0032] In the figure: 1. Pipe loop mounting plate; 11. Loop connecting pipe; 12. Bottom cone pipe; 2. Asphalt recycling machine case; 21. Converging cone shell; 22. Belt material conveyor; 23. Inclined discharge plate; 3. Crushing motor; 31. Crushing roller; 4. Gravel discharge pipe; 5. Crushing and converging shell; 51. Grinding roller; 511. Grinding cavity; 52. Horn converging cavity; 53. Connecting end plate; 54. First coupling; 55. Grinding motor; 6. Trolley shell; 61. Storage and collection cavity; 62. Outer handle; 63. Rotating universal wheel; 7. Air inlet connecting pipe; 71. Hollow cover plate; 72. Hollow panel; 8. Discharge groove cavity; 81. Asphalt material discharge hole; 82. Top collection cavity. DETAILED DESCRIPTION OF THE INVENTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0034] Embodiment 1

[0035] Refer to Figures 1-7 , a recycling device for waste asphalt mixture, comprising a waste asphalt recycling machine body, a feeding and adding mechanism, an asphalt mixture crushing mechanism, a recycling and grinding mechanism, a bottom discharging mechanism, a pneumatic separation mechanism, and an asphalt material collecting trolley.

[0036] The feeding and adding mechanism is fixedly connected through the middle of the upper end of the waste asphalt recycling machine body. The feeding and adding mechanism can add the waste asphalt mixture into the waste asphalt recycling machine body. Two asphalt mixture crushing mechanisms are symmetrically fixedly connected to the waste asphalt recycling machine body. The added waste asphalt mixture can be rotationally crushed through the two asphalt mixture crushing mechanisms. The asphalt mixture crushing mechanism is located below the feeding and adding mechanism, so as to facilitate corresponding reception for crushing. The recycling and grinding mechanism is installed and connected inside the waste asphalt recycling machine body. The recycling and grinding mechanism can receive the crushed waste asphalt mixture inside the waste asphalt recycling machine body for grinding. The recycling and grinding mechanism is located below the asphalt mixture crushing mechanism and can correspondingly receive the crushed material for grinding. The bottom discharging mechanism is fixedly connected through the lower end of the recycling and grinding mechanism. The bottom discharging mechanism can receive the waste asphalt mixture ground by the recycling and grinding mechanism for discharging. The pneumatic separation mechanism is installed and connected to the left end of the bottom discharging mechanism. The pneumatic separation mechanism can blow out gas at the left end of the bottom discharging mechanism, so as to pneumatically separate the crushed stones and asphalt materials after grinding. The pneumatic separation mechanism is connected to an external blower pipe, so as to facilitate receiving gas for conveying and separating. The asphalt material collecting trolley is located outside the waste asphalt recycling machine body and is convenient for receiving the separated asphalt materials.

[0037] The waste asphalt recycling machine body includes an asphalt recycling machine case 2. A collecting conical shell 21 is fixedly connected through the inner side of the lower end of the asphalt recycling machine case 2. The asphalt materials falling inside the asphalt recycling machine case 2 can be collected and discharged through the collecting conical shell 21. A belt material conveyor 22 is fixedly connected to the asphalt recycling machine case 2 below the collecting conical shell 21. The collecting conical shell 21 can convey the collected asphalt materials onto the belt material conveyor 22, and then through the belt material conveyor 22, they can be output to a designated position for collection. An inclined discharge plate 23 is fixedly connected below the discharge end of the belt material conveyor 22. The inclined discharge plate 23 can receive the asphalt materials discharged by the belt material conveyor 22. An asphalt material collection trolley is placed below the inclined discharge plate 23. The asphalt materials received by the inclined discharge plate 23 can be discharged into the asphalt material collection trolley for collection. A feed addition mechanism is installed on the inner side of the upper end of the asphalt recycling machine case 2, which is convenient for adding corresponding materials for recycling treatment. An asphalt mixture crushing mechanism is installed on the inner side of the upper end of the asphalt recycling machine case 2, so as to facilitate crushing. A recycling grinding mechanism is installed on the asphalt recycling machine case 2 below the asphalt mixture crushing mechanism, so as to facilitate grinding.

[0038] Refer to Figures 1-5 As shown, the bottom discharge mechanism includes a crushed stone discharge pipe 4 fixedly connected through the lower end of the crushing and collecting shell 5. The crushed stone discharge pipe 4 can receive the materials ground by the crushing and collecting shell 5. A top collection cavity 82 is opened on the inner side of the upper end of the crushed stone discharge pipe 4. The crushed stone discharge pipe 4 can collect correspondingly through the top collection cavity 82. A discharge groove cavity 8 communicating with the top collection cavity 82 is opened on the inner side of the lower end of the crushed stone discharge pipe 4. The crushed stone discharge pipe 4 can discharge the crushed crushed stone materials through the discharge groove cavity 8. An asphalt material discharge hole 81 is opened on the inner side of the right end of the crushed stone discharge pipe 4. The crushed stone discharge pipe 4 can discharge the pneumatically separated asphalt materials through the asphalt material discharge hole 81. A pneumatic separation mechanism aligned with the asphalt material discharge hole 81 is installed on the inner side of the left end of the crushed stone discharge pipe 4. The pneumatic separation mechanism can blow out gas to conduct pneumatic classification on the materials falling inside the crushed stone discharge pipe 4;

[0039] An asphalt material falling gap is opened between the right end of the top collection cavity 82 and the asphalt recycling machine case 2, which is convenient for the separated asphalt materials to fall.

[0040] The pneumatic separation mechanism includes a hollow cover plate 71 fixedly connected to the gravel discharge pipe 4. The hollow cover plate 71 can be stably placed on the gravel discharge pipe 4. At the left end of the hollow cover plate 71, an air intake connecting pipe 7 passing through the asphalt recycling machine case 2 is fixedly connected. The gas received by the air intake connecting pipe 7 can be transported into the hollow cover plate 71. At the inner end of the hollow cover plate 71, a hollowed-out panel 72 is fixedly connected. The gas inside the hollow cover plate 71 can be discharged through the holes of the hollowed-out panel 72, which is convenient for separating the grinding materials falling inside the gravel discharge pipe 4. The masses of the asphalt materials and the gravel materials are inconsistent, so pneumatic separation can be carried out. The light asphalt materials can be blown out, while the gravels fall vertically for discharge.

[0041] Working principle: The feeding and adding mechanism can add waste asphalt mixture into the waste asphalt recycling machine body. The added waste asphalt mixture can be rotationally crushed by two asphalt mixture crushing mechanisms. The recycling and grinding mechanism can receive the crushed waste asphalt mixture inside the waste asphalt recycling machine body for grinding. The bottom discharging mechanism can receive the waste asphalt mixture ground by the recycling and grinding mechanism for discharging. The pneumatic separation mechanism can blow out gas at the left end of the bottom discharging mechanism, so as to pneumatically separate the ground gravel and asphalt materials. The asphalt material collecting trolley is located outside the waste asphalt recycling machine body, which is convenient for receiving the separated asphalt materials.

[0042] Embodiment 2

[0043] Refer to Figure 1 、 Figure 2 and Figure 6 , a waste asphalt mixture recycling device. Compared with Embodiment 1, the asphalt material collecting trolley includes a trolley outer shell 6. An outer handle bar 62 is fixedly connected to the outer wall of the trolley outer shell 6. Through the outer handle bar 62 at the outer end of the trolley outer shell 6, it is convenient for personnel to hold and push. A rotating universal wheel 63 is rotatably installed at the lower end of the trolley outer shell 6. The trolley outer shell 6 can turn and move through the rotating universal wheel 63 at the lower end. A storage and collection cavity 61 is opened at the inner side of the upper end of the trolley outer shell 6, which is convenient for receiving materials for storage.

[0044] The feeding and adding mechanism includes a U-shaped connecting pipe 11 fixedly connected through the asphalt recycling machine case 2. The U-shaped connecting pipe 11 can be stably placed. At the upper end of the U-shaped connecting pipe 11, a pipe U-shaped mounting plate 1 is fixedly connected. The U-shaped connecting pipe 11 is convenient for connecting with the outside through the pipe U-shaped mounting plate 1. The U-shaped connecting pipe 11 is connected to the external waste asphalt adding pipe through the pipe U-shaped mounting plate 1. The U-shaped connecting pipe 11 is convenient for receiving the materials transported by the external waste asphalt adding pipe. At the lower end of the U-shaped connecting pipe 11, a bottom cone pipe 12 is fixedly connected. The U-shaped connecting pipe 11 is convenient for collecting and discharging materials between the two asphalt mixture crushing mechanisms for crushing.

[0045] Embodiment III

[0046] Refer to Figures 1-5 , a recycling device for waste asphalt mixture. Compared with Embodiment II, the asphalt mixture crushing mechanism of this embodiment includes a crushing motor 3 installed on the outer wall of the asphalt recycling machine case 2 by screws. The output shaft end of the crushing motor 3 is rotatably installed on the asphalt recycling machine case 2 with a crushing roller 31. The crushing motor 3 and the crushing roller 31 are fixedly connected by a coupling. When the output shaft of the crushing motor 3 rotates, it can drive the coupling to rotate, and the coupling drives the crushing roller 31 to rotate, so that the crushing roller 31 can rotate and crush inside the asphalt recycling machine case 2.

[0047] The recycling and grinding mechanism includes a crushing collection shell 5. Both ends of the crushing collection shell 5 are fixedly connected with connecting end plates 53. The crushing collection shell 5 is conveniently fixedly connected to the outside through the connecting end plates 53. The crushing collection shell 5 is fixedly connected inside the asphalt recycling machine case 2 through the connecting end plates 53, so that the crushing collection shell 5 can be stably placed inside the asphalt recycling machine case 2 to receive materials. A horn collection cavity 52 is opened on the inner side of the upper end of the crushing collection shell 5. Through the area of the horn collection cavity 52 of the crushing collection shell 5, the crushed waste asphalt mixture can be received. A grinding cavity 511 is opened inside the crushing collection shell 5. A grinding roller 51 is rotatably installed on the crushing collection shell 5 inside the grinding cavity 511. When the waste asphalt mixture falls into the grinding cavity 511, it can be rotationally ground by the rotation of the grinding roller 51. A first coupling 54 is fixedly connected to the rear end of the grinding roller 51. When the first coupling 54 rotates, it can drive the grinding roller 51 to rotate. A grinding motor 55 is installed on the outer wall of the asphalt recycling machine case 2 by screws at the rear end of the first coupling 54. The first coupling 54 rotates through the rotation of the output shaft of the grinding motor 55. A bottom discharge mechanism is fixedly connected through the lower end of the crushing collection shell 5. The crushing collection shell 5 can discharge the ground waste asphalt mixture into the bottom discharge mechanism.

[0048] ) As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

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

Claims

1. A recycling device for waste asphalt mixture, characterized in that, Comprising: Waste asphalt recycling machine body; Feeding and adding mechanism, which is fixedly connected through the middle of the upper end of the waste asphalt recycling machine body; Asphalt mixture crushing mechanism, two of which are symmetrically fixedly connected to the waste asphalt recycling machine body, and the asphalt mixture crushing mechanism is located below the feeding and adding mechanism; Recycling and grinding mechanism, which is installed and connected inside the waste asphalt recycling machine body, and the recycling and grinding mechanism is located below the asphalt mixture crushing mechanism; Bottom discharging mechanism, which is fixedly connected through the lower end of the recycling and grinding mechanism; Pneumatic separation mechanism, which is installed and connected to the left end of the bottom discharging mechanism, and the pneumatic separation mechanism is connected to an external blower pipe; Asphalt material collecting trolley, which is located outside the waste asphalt recycling machine body.

2. The recycling device for waste asphalt mixture according to claim 1, wherein: The waste asphalt recycling machine body includes an asphalt recycling machine case (2), a converging conical shell (21) is fixedly connected through the inner side of the lower end of the asphalt recycling machine case (2), a belt material conveyor (22) is fixedly connected to the asphalt recycling machine case (2) below the converging conical shell (21), an inclined discharge plate (23) is fixedly connected below the discharge end of the belt material conveyor (22), an asphalt material collecting trolley is placed below the inclined discharge plate (23), a feeding and adding mechanism is installed on the inner side of the upper end of the asphalt recycling machine case (2), an asphalt mixture crushing mechanism is installed on the inner side of the upper end of the asphalt recycling machine case (2), and a recycling and grinding mechanism is installed on the asphalt recycling machine case (2) below the asphalt mixture crushing mechanism.

3. A recycling device for waste asphalt mixture according to claim 1 or 2, characterized in that: The asphalt material collecting trolley includes a trolley outer shell (6), an outer handle bar (62) is fixedly connected to the outer wall of the trolley outer shell (6), a rotating universal wheel (63) is rotatably installed at the lower end of the trolley outer shell (6), and a storage and collection cavity (61) is formed inside the upper end of the trolley outer shell (6).

4. The recycling device for waste asphalt mixture according to claim 2, characterized in that: The feeding and adding mechanism includes a U-shaped connecting pipe (11) fixedly connected through the asphalt recycling machine case (2), a pipe U-shaped mounting plate (1) is fixedly connected through the upper end of the U-shaped connecting pipe (11), a bottom conical pipe (12) is fixedly connected through the lower end of the U-shaped connecting pipe (11), and the U-shaped connecting pipe (11) is connected to an external waste asphalt adding pipe through the pipe U-shaped mounting plate (1).

5. A recycling device for waste asphalt mixture according to claim 1 or 2, characterized in that: The asphalt mixture crushing mechanism includes a crushing motor (3) installed on the outer wall of the asphalt recycling machine case (2) by screws, a crushing roller (31) is rotatably installed on the asphalt recycling machine case (2) at the output shaft end of the crushing motor (3), and the crushing motor (3) and the crushing roller (31) are fixedly connected by a coupling.

6. The recycling device for waste asphalt mixture according to claim 2, characterized in that: The recycling and grinding mechanism includes a crushing and collecting shell (5). Both ends of the crushing and collecting shell (5) are fixedly connected with connecting end plates (53). The crushing and collecting shell (5) is fixedly connected inside the asphalt recycling machine box (2) through the connecting end plates (53). A horn-shaped collecting cavity (52) is arranged inside the upper end of the crushing and collecting shell (5). A grinding cavity (511) is arranged inside the crushing and collecting shell (5). A grinding roller (51) is rotatably installed on the crushing and collecting shell (5) inside the grinding cavity (511). A first coupling (54) is fixedly connected to the rear end of the grinding roller (51). A grinding motor (55) is installed on the outer wall of the asphalt recycling machine box (2) by screws at the rear end of the first coupling (54). A bottom discharge mechanism is fixedly connected through the lower end of the crushing and collecting shell (5).

7. The recycling device for waste asphalt mixture according to claim 6, wherein: The bottom discharge mechanism includes a crushed stone discharge pipe (4) fixedly connected through the lower end of the crushing and collecting shell (5). A top collecting cavity (82) is arranged inside the upper end of the crushed stone discharge pipe (4). A discharge groove cavity (8) communicating with the top collecting cavity (82) is arranged inside the lower end of the crushed stone discharge pipe (4). An asphalt material discharge hole (81) is arranged inside the right end of the crushed stone discharge pipe (4). A pneumatic separation mechanism is installed inside the left end of the crushed stone discharge pipe (4) opposite to the asphalt material discharge hole (81).

8. The recycling device for waste asphalt mixture according to claim 7, wherein: An asphalt material dropping gap is arranged between the right end of the top collecting cavity (82) and the asphalt recycling machine box (2).

9. The recycling device for waste asphalt mixture according to claim 7, wherein: The pneumatic separation mechanism includes a hollow cover plate (71) fixedly connected to the crushed stone discharge pipe (4). An air inlet connecting pipe (7) passing through the asphalt recycling machine box (2) is fixedly connected through the left end of the hollow cover plate (71). A hollow panel (72) is fixedly connected to the inner end of the hollow cover plate (71).

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