Waste asphalt energy-saving type recycling device for street renovation construction

Abstract

The energy-saving waste asphalt recycling device for street renovation construction comprises a main box body, a crushing assembly is installed in the main box body, the upper end of the main box body is fixedly connected with a pre-crushing cylinder, and the pre-crushing cylinder communicates with the main box body through a communicating opening; the pre-crushing mechanism comprises a feeding opening formed in the upper end of a pre-crushing cylinder, the inner top of the pre-crushing cylinder is rotationally connected with a rotating pipe, the outer side of the lower end part of the rotating pipe is fixedly connected with a plurality of crushing cutters at equal intervals, the inner wall of the pre-crushing cylinder is fixedly connected with a separation plate, and a plurality of through openings are formed in the separation plate; and the driving mechanism is used for driving the rotating pipe, so that the pre-crushing operation is realized. In the actual using process, the device can cool a crushing structure, the situation of asphalt adhesion is avoided, in addition, dust falling can be conducted in the crushing process, and the surrounding environment is prevented from being affected.

Description

Technical Field

[0001] The invention relates to the field of asphalt recovery, and in particular to an energy-saving recycling device for waste asphalt used in street improvement construction. Background Art

[0002] With the acceleration of urbanization, street improvement projects are becoming more and more frequent. In the process of street renovation, expansion and other improvement, a large amount of waste asphalt will be generated. If these waste asphalt are not properly handled, it will not only cause a waste of resources, but also have a serious negative impact on the environment; In the recycling process of waste asphalt, crushing is a key link. When traditional crushing devices crush waste asphalt, due to the intense friction between the crushed parts and the asphalt, a large amount of heat will be generated, causing the temperature of the asphalt to rise. When the temperature of the asphalt rises to a certain level, it will become sticky and easily adhere to the crushed parts, which will not only affect the normal operation of the crushed parts and reduce the crushing efficiency, but also increase the maintenance cost and downtime of the equipment. A large amount of dust will be generated during the crushing process of waste asphalt. This dust will not only pollute the environment of the construction site and affect the health of the construction workers, but may also drift to the surrounding areas, causing adverse effects on the living environment and air quality of the residents. Therefore, how to solve the above problems needs to be considered. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an energy-saving recycling device for waste asphalt used in street improvement construction. During actual use, the device can cool the crushing structure to avoid the occurrence of asphalt adhesion. In addition, it can also reduce dust during the crushing process to avoid affecting the surrounding environment.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A device for recycling waste asphalt used in street renovation construction that is energy-saving comprises a main box body, a crushing assembly is installed inside the main box body, a pre-crushing cylinder is fixedly connected to the upper end of the main box body, and the pre-crushing cylinder is connected to the main box body through a connecting port; a pre-crushing mechanism, the pre-crushing mechanism comprises a feeding port arranged at the upper end of the pre-crushing cylinder, a rotating tube is rotatably connected to the inner top of the pre-crushing cylinder, a plurality of crushing knives are fixedly connected to the outer side of the lower end portion of the rotating tube at equal intervals, a separation plate is fixedly connected to the inner wall of the pre-crushing cylinder, and a plurality of through openings are formed on the separation plate; a driving mechanism, the driving mechanism is used to drive the rotating tube to realize the pre-crushing operation, the driving mechanism comprises a driving motor installed at the upper end of the pre-crushing cylinder, the upper end of the rotating tube passes through the pre-crushing cylinder and is connected to the output shaft of the driving motor through a transmission member; a cooling mechanism, the cooling mechanism is used to cool the crushing structure to avoid the situation in which the asphalt cutting friction heats up and adheres to the crushing parts.

[0005] Preferably, the transmission member includes two belt pulleys, the two belt pulleys are drivingly connected by a transmission belt, and the two belt pulleys are respectively installed on the output shaft of the driving motor and the rotating tube.

[0006] Preferably, a collection box is fixedly connected to the right side of the main box body, a sealing door is arranged on the front side of the collection box, the left side of the collection box is communicated with the inside of the main box body through a connection port, and two collection boxes are symmetrically placed at the inner bottom of the collection box.

[0007] Preferably, the cooling mechanism includes a high-pressure box fixedly connected to the right side of the main box body, a vertical plate is fixedly connected to the upper end of the high-pressure box, two first piston cylinders are symmetrically and fixedly connected to the left side of the vertical plate, a slidable first piston block is arranged in each first piston cylinder, a U-shaped rod is fixedly connected to the left sides of the two first piston blocks together, a crankshaft is installed on the output shaft of the driving motor, the crankshaft is L-shaped, a connecting rod is rotatably connected to the crankshaft, and the other end of the connecting rod is rotatably connected to the U-shaped rod.

[0008] Preferably, the right-side space of the upper first piston cylinder is communicated with the outside through a one-way port, the right-side space of the upper first piston cylinder is communicated with the inside of the high-pressure box through a one-way tube, the upper end of the rotating tube is conductive and the lower end is sealed, a rotary joint is installed at the upper end of the rotating tube, a vortex tube is communicated with the upper end of the rotary joint, a cold air end of the vortex tube is communicated with a liquid inlet tube, the high-pressure box is communicated with an air inlet end of the vortex tube through a pressure relief tube, a pressure relief valve is installed inside the pressure relief tube, and a plurality of atomizing nozzles are arranged on the part of the rotating tube located inside the pre-crushing cylinder.

[0009] Preferably, one-way valves are installed inside both the one-way port and the one-way tube, the flow direction of the one-way valve inside the one-way port is unidirectional from the outside into the upper first piston cylinder, and the flow direction of the one-way valve inside the one-way tube is unidirectional from the upper first piston cylinder into the high-pressure box.

[0010] Preferably, a plurality of guide rods are fixedly connected between the upper and lower inner walls of the main box body, a shaking plate is arranged through the plurality of guide rods together, the shaking plate is inclined, and the right side of the shaking plate penetrates through a communication port and extends into the collection box.

[0011] Preferably, a plurality of first separation holes are formed in the part of the shaking plate located inside the main box body, and a plurality of second separation holes are formed in the part of the shaking plate located inside the collection box. The apertures of the plurality of second separation holes are larger than those of the plurality of first separation holes. A second piston cylinder is fixedly connected to the inner bottom of the main box body. A slidable second piston block is arranged in the second piston cylinder. The upper end of the second piston block is fixedly connected to a piston rod, and the upper end of the piston rod is fixedly connected to the lower end of the shaking plate. The inner bottom space of the second piston cylinder is communicated with the first piston cylinder below through a connecting pipe.

[0012] Preferably, a support frame is installed at the lower end of the main box body. The support frame is composed of two cross plates and a plurality of connecting rods. A water storage box is placed on the upper end of the lower cross plate. A communicating pipe is communicated with the inner bottom of the main box body, and the other end of the communicating pipe extends to the inner bottom of the water storage box.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the double-stage crushing design of the pre-crushing cylinder and the main box body, combined with the synergistic effect of the crushing knife and the crushing component, the efficient crushing treatment of waste asphalt is realized. The crushed asphalt is classified by the shaking plate and finally collected into collection boxes of different specifications, completing the classified recycling of asphalt, and significantly improving the recycling efficiency and resource utilization rate.

[0014] 2. The crank-link mechanism is used to drive the piston cylinder to generate high-pressure gas, and cold air is generated through the vortex tube and sprayed out through the atomizing nozzle to continuously cool the crushing knife and the crushing component, avoiding the situation of asphalt softening and adhesion caused by high temperature and ensuring the stability of the crushing process.

[0015] 3. The negative pressure difference generated when the high-speed air flow passes through the vortex tube drives the water body to enter the atomization system through the liquid inlet pipe, and forms water mist under the action of shear force. The atomized water body can not only adsorb the crushing dust and reduce the dust pollution, but also further strengthen the cooling effect by evaporation and heat absorption. In addition, the acoustic barrier formed by the water mist can effectively absorb the sound wave energy, reduce the sound wave reflection and propagation, and significantly reduce the environmental noise of the crushing operation.

[0016] 4. The atomized water body adheres to the surface of the asphalt briefly during the cooling process, and the rapid separation of water and asphalt is realized through the mechanical vibration of the shaking plate. This process can pre-remove some impurities on the surface of the asphalt, reduce the pollution load of the subsequent cleaning process, improve the cleanliness of the recycled asphalt, and provide high-quality raw materials for the subsequent processing.

[0017] 5. After the crushing is completed, by closing the solenoid valve of the liquid inlet pipe, the residual water mist in the main box body and the collection box is completely discharged by the air flow. This design effectively avoids the direct contact of the operator with the residual water body and ensures the operation safety.

[0018] In summary, when the device is in use, it has the effects of energy conservation and environmental protection, reducing the dust and noise pollution caused to the surrounding environment, and avoiding the situation where the asphalt is softened by heat and affects crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural diagram of an energy-saving recycling device for waste asphalt used in street renovation construction proposed by the present invention; Figure 2 is Figure 1 a schematic sectional view; Figure 3 is Figure 2 a front view; Figure 4 is a sectional view of the second piston cylinder and the shaking plate; Figure 5 is Figure 1 a schematic diagram of the rear structure; Figure 6 is a schematic structural diagram of the cooling mechanism; Figure 7 is Figure 6 a partial sectional view.

[0020] In the figure: 1 main box body, 2 support frame, 3 collection box, 4 pre-crushing cylinder, 5 feeding port, 6 high-pressure box, 7 vertical plate, 8 connecting pipe, 9 rotating pipe, 10 liquid inlet pipe, 11 water storage box, 12 communicating pipe, 13 collection box, 14 crushing assembly, 15 shaking plate, 16 first separation hole, 17 second separation hole, 18 communication port, 19 separation plate, 20 crushing knife, 21 atomizing nozzle, 22 guide rod, 23 piston rod, 24 second piston cylinder, 25 second piston block, 26 pressure relief pipe, 27 pressure relief valve, 28 driving motor, 29 transmission part, 30 rotary joint, 31 vortex tube, 32 crankshaft, 33 connecting rod, 34 U-shaped rod, 35 first piston cylinder, 36 one-way port, 37 first piston block, 38 one-way pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Referring to Figures 1-6 , an energy-saving recycling device for waste asphalt used in street renovation construction includes a main box body 1, a crushing assembly 14 is installed inside the main box body 1, a pre-crushing cylinder 4 is fixedly connected to the upper end of the main box body 1, and the pre-crushing cylinder 4 is communicated with the main box body 1 through a communication port 18; As an embodiment of the present invention, a pre-crushing mechanism is also included. The pre-crushing mechanism includes a feeding port 5 arranged at the upper end of a pre-crushing cylinder 4. The feeding port 5 is sealable and can be sealed during crushing. A rotating tube 9 is rotatably connected to the inner top of the pre-crushing cylinder 4. A plurality of crushing knives 20 are fixedly connected to the outer side of the lower end of the rotating tube 9 at equal intervals. A separation plate 19 is fixedly connected to the inner wall of the pre-crushing cylinder 4. The separation plate 19 is provided with a plurality of openings. The pre-crushed asphalt can pass through the plurality of openings on the separation plate 19. As an embodiment of the present invention, it also includes a driving mechanism, which is used to drive the rotating tube 9 to achieve the pre-crushing operation. The driving mechanism includes a driving motor 28 installed at the upper end of the pre-crushing cylinder 4. The upper end of the rotating tube 9 passes through the pre-crushing cylinder 4 and is connected to the output shaft of the driving motor 28 through a transmission member 29. The transmission member 29 includes two pulleys, which are connected through a transmission belt. The two pulleys are respectively installed on the output shaft of the driving motor 28 and the rotating tube 9. As an embodiment of the present invention, a collection box 3 is fixedly connected to the right side of the main box body 1, a sealing door is arranged on the front side of the collection box 3, the left side of the collection box 3 is connected to the inside of the main box body 1 through a connection port, two collection boxes 13 are symmetrically placed on the inner bottom of the collection box 3, and the end of the subsequent shaking plate 15 is just located at the position where the two collection boxes 13 contact; As an embodiment of the present invention, it also includes a cooling mechanism, which is used to cool the crushing structure to avoid the situation where the asphalt cutting friction heats up and adheres to the crushing parts. The cooling mechanism includes a high-pressure box 6 fixedly connected to the right side of the main box body 1. The high-pressure box 6 stores high-pressure gas, which is close to the release threshold of the pressure relief valve 27 in the initial state. The upper end of the high-pressure box 6 is fixedly connected to a vertical plate 7, and the left side of the vertical plate 7 is symmetrically fixedly connected to two first piston cylinders 35. A slidable first piston block 37 is provided in each first piston cylinder 35. The left sides of the two first piston blocks 37 are commonly fixedly connected to a U-shaped rod 34. The output shaft of the drive motor 28 is equipped with a crankshaft 32, and the crankshaft 32 is L-shaped. A connecting rod 33 is rotatably connected to the crankshaft 32. The other end of the connecting rod 33 is rotatably connected to the U-shaped rod 34. The crankshaft is L-shaped. When it rotates, the U-shaped rod 34 can be reciprocated left and right through the connecting rod 33. The right side space of the first piston cylinder 35 at the top is connected to the outside through the one-way port 36, and the right side space of the first piston cylinder 35 at the top is connected to the inside of the high-pressure box 6 through the one-way pipe 38. The upper end of the rotating tube 9 is connected and the lower end is sealed. The upper end of the rotating tube 9 is installed with a rotary joint 30, and the upper end of the rotary joint 30 is connected with a vortex tube 31, that is, connected with the cold end of the vortex tube 31. The vortex tube 31 has a cold end and a hot end. When the high-pressure airflow is injected, the hot end releases high-temperature gas. The cold end releases low-temperature gas, and the cold air end of the vortex tube 31 is connected to the liquid inlet pipe 10, on which a solenoid valve is installed. The other end of the liquid inlet pipe 10 is connected to the external water tank, and a one-way valve for the water tank to enter the cold air end of the vortex tube 31 in one direction is installed inside the liquid inlet pipe 10. The high-pressure box 6 is connected to the air inlet end of the vortex tube 31 through the pressure relief pipe 26, and a pressure relief valve 27 is installed inside the pressure relief pipe 26. The rotating tube 9 is located inside the pre-crushing cylinder 4 and is provided with a plurality of atomizing nozzles 21; As an embodiment of the present invention, a one-way valve is installed inside the one-way port 36 and the one-way tube 38. The one-way valve inside the one-way port 36 flows in a one-way direction from the outside to the upper first piston cylinder 35, and the one-way valve inside the one-way tube 38 flows in a one-way direction from the upper first piston cylinder 35 to the high-pressure box 6. As an implementation manner of the present invention, a plurality of guide rods 22 are fixedly connected between the upper and lower inner walls of the main box body 1. A plurality of guide rods 22 commonly penetrate through a shaking plate 15. The shaking plate 15 is inclined. The right side of the shaking plate 15 penetrates through the communication port and extends into the collection box 3. A plurality of first separation holes 16 are formed in the part of the shaking plate 15 located inside the main box body 1. A plurality of second separation holes 17 are formed in the part of the shaking plate 15 located inside the collection box 3. The first separation holes 16 are used to separate the adhered water bodies. The second separation holes 17 are used to classify the cross-sectioned asphalt. The diameters of the plurality of second separation holes 17 are larger than the diameters of the plurality of first separation holes 16. A second piston cylinder 24 is fixedly connected to the inner bottom of the main box body 1. A slidable second piston block 25 is arranged in the second piston cylinder 24. The upper end of the second piston block 25 is fixedly connected to a piston rod 23. The upper end of the piston rod 23 is fixedly connected to the lower end of the shaking plate 15. The inner bottom space of the second piston cylinder 24 is communicated with the lower first piston cylinder 35 through a connecting pipe 8. A support frame 2 is installed at the lower end of the main box body 1. The support frame 2 is composed of two cross plates and a plurality of connecting rods. A water storage box 11 is placed on the upper end of the lower cross plate. The water storage box 11 is filled with water. A communication pipe 12 is communicated with the inner bottom of the main box body 1. The communication pipe 12 is a flexible pipe. The other end of the communication pipe 12 extends to the inner bottom of the water storage box 11.

[0023] In the present invention, an appropriate amount of sheet-shaped waste asphalt is put into the feeding port 5 and enters the pre-crushing cylinder 4. Then the feeding port 5 is sealed. The driving motor 28 drives the rotating pipe 9 to rotate through the transmission member 29. The crushing knife 20 on the outer side of the lower end of the rotating pipe 9 pre-crushes the asphalt. The pre-crushed asphalt enters the communication port 18 through the through hole 19 on the separation plate 19. The pre-crushed asphalt enters the main box body 1 through the communication port 18. The crushing assembly 14 installed inside the main box body 1 further crushes the asphalt. When the driving motor 28 rotates, the crankshaft 32 on the output shaft of the driving motor 28 rotates accordingly. The U-shaped rod 34 is driven to move left and right reciprocally through the connecting rod 33. The U-shaped rod 34 drives the two first piston blocks 37 to reciprocate in the first piston cylinder 35. The space on the right side of the upper first piston cylinder 35 inhales gas from the outside through the one-way port 36, and then presses the gas into the high-pressure box 6 through the one-way pipe 38, so that the air pressure inside the high-pressure box 6 increases. Since there is already high-pressure gas in the high-pressure box 6 and it is close to the pressure relief threshold, the high-pressure box 6 quickly reaches the release threshold as the gas is injected. When the air pressure inside the high-pressure box 6 reaches the release threshold of the pressure relief valve 27, the high-pressure gas enters the intake end of the vortex tube 31 through the pressure relief pipe 26. The cold end of the vortex tube 31 generates low-temperature gas, which is sprayed out from the atomizing nozzle 21 on the rotating pipe 9. These airflows will finally be discharged from the communication pipe 12. After passing through the pre-crushing cylinder 4 and the main box body 1, they will cool the crushing knife 20 in the pre-crushing cylinder 4 and the crushing assembly 14 in the main box body 1. By using this method, the situation where high temperature affects crushing can be avoided. Furthermore, when the high-speed air flow is discharged from the cold air end of the vortex tube 31, due to the lower air pressure generated by the high-speed air flow, the water body can be supplemented through the liquid inlet pipe 10 by using the negative pressure difference. After the water body enters the vortex tube 31, it is atomized under the action of a large shear force and finally presents an atomized state. Along with the air flow, it enters the pre-crushing cylinder 4. The atomized water body can adsorb the dust generated by crushing, achieving the effect of dust reduction. In addition, the atomized water body is extremely easy to evaporate in an environment of high temperature and high air flow velocity, thereby further absorbing heat and cooling down, improving the actual cooling effect. In addition, during the above process, the atomized water body will adhere to the crushed asphalt at one step; The crushed asphalt falls on the vibrating plate 15. The first piston block 37 below reciprocates left and right, which will cause the lower first piston cylinder 35 and the second piston cylinder 24 to continuously exchange gases. Driven by the second piston block 25 and the piston rod 23, the vibrating plate 15 vibrates up and down. The water in the asphalt flows into the bottom of the main box body 1 through the first separation hole 16 on the vibrating plate 15, and then flows into the water storage box 11 through the connecting pipe 12. During this process, the water body adheres to the asphalt and then is shaken off, which can achieve the operation of pre-cleaning the asphalt and facilitate the cleanliness of the subsequent cleaning process. The asphalt with the shaken-off water body enters the two collection boxes 13 in the collection box 3 through the second separation hole 17 on the vibrating plate 15 to complete the classification and recycling of the asphalt; It should be noted that since the atomized water body fills the pre-crushing cylinder 4 and the main box body 1, the water mist can form an acoustic barrier, reducing the reflection and propagation of sound waves, thereby reducing the environmental noise and the noise generated by the overall crushing, so as to achieve the purpose of reducing the environmental noise; After the entire crushing process is completed, the solenoid valve on the liquid inlet pipe 10 can be closed. At this time, only gas is ejected from the rotating pipe 9, and the gas finally discharges from the connecting pipe 12. By using this method, the residual atomized water body inside the main box body 1 and the collection box 3 can be discharged, avoiding the influence of the atomized water body on the operator when the sealed door is opened to take out the collection box 13 later.

[0024] The above is only the preferred specific implementation manner 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 and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An energy-saving recycling device for waste asphalt used in street improvement construction, characterized in that: include: A main box (1), wherein a crushing assembly (14) is installed inside the main box (1), a pre-crushing cylinder (4) is fixedly connected to the upper end of the main box (1), and the pre-crushing cylinder (4) is connected to the main box (1) via a communication port (18); A pre-crushing mechanism, the pre-crushing mechanism comprising a feeding port (5) arranged at the upper end of a pre-crushing cylinder (4), a rotating tube (9) being rotatably connected to the inner top of the pre-crushing cylinder (4), a plurality of crushing knives (20) being fixedly connected at equal intervals to the outer side of the lower end portion of the rotating tube (9), a separation plate (19) being fixedly connected to the inner wall of the pre-crushing cylinder (4), and a plurality of through openings being formed on the separation plate (19); a driving mechanism, the driving mechanism being used to drive the rotating tube (9) so as to realize the pre-crushing operation, the driving mechanism comprising a driving motor (28) mounted on the upper end of the pre-crushing cylinder (4), the upper end of the rotating tube (9) passing through the pre-crushing cylinder (4) and being connected to the output shaft of the driving motor (28) via a transmission member (29); The cooling mechanism is used to cool the crushing structure to prevent the asphalt from adhering to the crushing parts due to frictional heating during cutting.

2. The energy-saving recycling device for waste asphalt used in street improvement construction according to claim 1 is characterized in that: The transmission member (29) comprises two pulleys, the two pulleys are connected via a transmission belt, and the two pulleys are respectively mounted on the output shaft of the drive motor (28) and the rotating tube (9).

3. The energy-saving recycling device for waste asphalt used in street improvement construction according to claim 1 is characterized in that: A collection box (3) is fixedly connected to the right side of the main box body (1), a sealing door is provided on the front side of the collection box (3), the left side of the collection box (3) is connected to the inside of the main box body (1) via a connection port, and two collection boxes (13) are symmetrically placed on the inner bottom of the collection box (3).

4. The energy-saving recycling device for waste asphalt used in street improvement construction according to claim 3 is characterized in that: The cooling mechanism comprises a high-pressure box (6) fixedly connected to the right side of the main box body (1); a vertical plate (7) is fixedly connected to the upper end of the high-pressure box (6); two first piston cylinders (35) are symmetrically fixedly connected to the left side of the vertical plate (7); each of the first piston cylinders (35) is provided with a slidable first piston block (37); a U-shaped rod (34) is fixedly connected to the left side of the two first piston blocks (37); a crankshaft (32) is installed on the output shaft of the drive motor (28); the crankshaft (32) is L-shaped; a connecting rod (33) is rotatably connected to the crankshaft (32); the other end of the connecting rod (33) is rotatably connected to the U-shaped rod (34).

5. The energy-saving recycling device for waste asphalt used in street improvement construction according to claim 4 is characterized in that: The right side space of the first piston cylinder (35) located at the top is connected to the outside through a one-way port (36), and the right side space of the first piston cylinder (35) located at the top is connected to the inside of the high-pressure box (6) through a one-way pipe (38). The upper end of the rotating tube (9) is conductive and the lower end is sealed. A rotating joint (30) is installed at the upper end of the rotating tube (9). The upper end of the rotating joint (30) is connected to a vortex tube (31). The cold air end of the vortex tube (31) is connected to a liquid inlet pipe (10). The high-pressure box (6) is connected to the air inlet end of the vortex tube (31) through a pressure relief pipe (26). A pressure relief valve (27) is installed inside the pressure relief pipe (26). The rotating tube (9) located inside the pre-crushing cylinder (4) is provided with a plurality of atomizing nozzles (21).

6. The energy-saving recycling device for waste asphalt used in street improvement construction according to claim 5 is characterized in that: One-way valves are installed inside the one-way port (36) and the one-way tube (38). The one-way valve inside the one-way port (36) allows flow from the outside to one-way into the upper first piston cylinder (35), while the one-way valve inside the one-way tube (38) allows flow from the upper first piston cylinder (35) to one-way into the high-pressure box (6).

7. The energy-saving recycling device for waste asphalt used in street improvement construction according to claim 4 is characterized in that: A plurality of guide rods (22) are fixedly connected between the upper and lower inner walls of the main box body (1), and a shaking plate (15) is provided through the plurality of guide rods (22). The shaking plate (15) is arranged in an inclined manner, and the right side of the shaking plate (15) passes through a connecting port and extends into the interior of the collection box (3).

8. The energy-saving recycling device for waste asphalt used in street improvement construction according to claim 7 is characterized in that: The shaking plate (15) is located in the inner part of the main box body (1) and is provided with a plurality of first separation holes (16); the shaking plate (15) is located in the inner part of the collecting box (3) and is provided with a plurality of second separation holes (17); the apertures of the plurality of second separation holes (17) are larger than the apertures of the plurality of first separation holes (16); a second piston cylinder (24) is fixedly connected to the bottom of the inner part of the main box body (1); a slidable second piston block (25) is arranged in the second piston cylinder (24); the upper end of the second piston block (25) is fixedly connected to a piston rod (23); the upper end of the piston rod (23) is fixedly connected to the lower end of the shaking plate (15); the bottom space in the second piston cylinder (24) is connected to the first piston cylinder (35) below via a connecting pipe (8).

9. The energy-saving recycling device for waste asphalt used in street improvement construction according to claim 1, characterized in that: A support frame (2) is installed at the lower end of the main box body (1), and the support frame (2) is composed of two horizontal plates and a plurality of connecting rods. A water storage box (11) is placed at the upper end of the horizontal plate located below. The inner bottom of the main box body (1) is connected to a connecting pipe (12), and the other end of the connecting pipe (12) extends to the inner bottom of the water storage box (11).

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