Waste asphalt recycling device and method

Abstract

The invention discloses a waste asphalt recycling and reusing device and method, and relates to the technical field of waste asphalt recycling, the waste asphalt recycling and reusing device comprises a bottom plate, a crushing box is arranged at the top of the bottom plate at one end, a cover plate is arranged at the top of the crushing box, a feeding hopper capable of being opened and closed is arranged above the cover plate, and an atomizing nozzle is arranged on the inner side of the feeding hopper; a crushing mechanism is arranged in the crushing box, a discharging opening is formed in the position, located below the crushing box, in the bottom plate, a vibration screening box is arranged at the bottom of the discharging opening, a vibration screening mechanism is arranged in the vibration screening box, a feeding door capable of being automatically opened and closed is arranged on the side face of the vibration screening box at one end, a stirring box is arranged on the side face of the feeding door, and a stirring mechanism is arranged in the stirring box. A detachable activated carbon filter screen is arranged at the position, located on the top face of the bottom plate at the other end, above the stirring box, and a smoke exhaust port is formed in the upper portion of the activated carbon filter screen.

Description

Technical Field

[0001] The present invention relates to the technical field of waste asphalt recycling and reuse, and particularly to a waste asphalt recycling and reuse device and method. Background Art

[0002] In today's society, with the acceleration of the urbanization process and the continuous improvement of transportation infrastructure, the paving and maintenance of asphalt roads have become important links in road construction. However, this has led to the generation of a large amount of waste asphalt. If these waste materials are not properly treated, they will not only occupy precious land resources but also may cause environmental pollution. To address this challenge, a new type of waste asphalt recycling and reuse device and method has emerged, providing strong technical support for green transportation construction. However, the existing waste asphalt recycling and reuse devices still have many deficiencies and drawbacks and urgently need to be improved and optimized;

[0003] The existing waste asphalt recycling and reuse devices have a relatively simple structure, and the treatment effect on waste asphalt is not ideal. Some devices are prone to secondary pollution during the treatment process, such as dust and waste gas, which have an adverse impact on the environment. Secondly, the existing devices have problems with poor crushing and screening effects. On the one hand, the crushing particle size is uneven, affecting the subsequent treatment effect. On the other hand, the screening efficiency is low, making it difficult to effectively separate asphalt particles of different particle sizes, resulting in unstable quality of the recycled asphalt, as well as the problem of uneven heating during stirring. Summary of the Invention

[0004] A waste asphalt recycling and reuse device and method proposed by the present invention solve the problems in the existing waste asphalt recycling and reuse devices and methods, such as the relatively simple device structure being prone to secondary pollution, and the poor crushing and screening effects and uneven heating.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A waste asphalt recycling and reuse device and method, including a bottom plate. At one end, a crushing box is provided on the top of the bottom plate, and a cover plate is provided on the top of the crushing box. Above the cover plate, an openable and closable feed hopper is provided, and an atomizing nozzle is provided inside the feed hopper. A crushing mechanism is provided inside the crushing box, and a discharge port is provided inside the bottom plate below the crushing box. A vibrating sieve box is provided at the bottom of the discharge port, and a vibrating sieve mechanism is provided inside the vibrating sieve box. An automatically openable and closable feed door is provided on one side of the vibrating sieve box, and a stirring box is provided on the side of the feed door. A stirring mechanism is provided inside the stirring box, and a detachable activated carbon filter screen is provided on the top surface of the other end of the bottom plate above the stirring box. A smoke exhaust port is provided above the activated carbon filter screen.

[0007] Preferably, a slideway is arranged inside the upper part of the feed hopper, and a sealing plate matching the slideway is arranged inside the feed hopper and is slidably connected. A water inlet pipe is arranged on the side of the atomizing nozzle outside the feed hopper.

[0008] Preferably, the crushing mechanism includes a first driving motor, a crushing roller, and a rotating shaft. Crushing rollers are arranged on both sides inside the crushing box. The side of the crushing roller is connected to the inside of the crushing box through the rotating shaft, and the rotating shaft on the side of one end of the crushing roller extends outside the crushing box. A first driving motor is arranged outside the crushing box, and the output end of the first driving motor is connected to the rotating shaft to form a crushing structure.

[0009] Preferably, the vibrating sieve mechanism includes a high-pressure water pipe, a connecting pipe, a nozzle, a sieve plate, a damping telescopic rod, a spring, an installation groove, a vibrator, and a drain port. A high-pressure water pipe is arranged inside the vibrating sieve box outside the discharge port. Nozzles are arranged at the bottom of the high-pressure water pipe. A connecting pipe is arranged outside the vibrating sieve box, and the connecting pipe is connected to the high-pressure water pipe. A drain port is arranged at the bottom of the vibrating sieve box.

[0010] Preferably, an installation groove is arranged on the inner side of one end of the vibrating sieve box, and multiple groups of damping telescopic rods are arranged inside the installation groove. Springs are arranged outside the damping telescopic rods, and a sieve plate is arranged on the side of the damping telescopic rod. A vibrator is arranged outside the vibrating sieve box on the side of the other end of the sieve plate to form a vibrating sieve structure.

[0011] Preferably, a through groove is arranged on the inner side of one end of the vibrating sieve box, and a feed door is arranged inside the through groove. An electric telescopic rod is connected to the bottom of the feed door outside the vibrating sieve box.

[0012] Preferably, a push plate is arranged on the inner side of the other end of the vibrating sieve box, and groove blocks are arranged on both sides of the push plate. Groove channels matching the groove blocks are arranged on both sides inside the vibrating sieve box and are slidably connected. A lead screw is arranged inside one end of the groove channel, a threaded hole matching the lead screw is arranged inside the groove block, and a second driving motor is connected to the side of the lead screw outside the vibrating sieve box to form a feeding structure.

[0013] Preferably, the stirring mechanism includes stirring blades, a stirring shaft, a heater, a third driving motor, a discharge port, and a knob valve. Third driving motors are arranged on both sides of the top of the bottom plate above the stirring box. The output end of the third driving motor is connected to a stirring shaft, and the stirring shaft is located inside the stirring box. Multiple groups of stirring blades are arranged outside the stirring shaft, and a heater is arranged inside the stirring blades to form a stirring structure. A discharge port is arranged at the bottom of the stirring box, and a knob valve is arranged outside the discharge port.

[0014] Preferably, a support frame is provided at the bottom of the bottom plate, and a support top is provided at the bottom of the support frame. A gas filter box is provided on the top surface of the bottom plate between the third drive motors. A plurality of placement grooves are provided inside the gas filter box, and activated carbon filter meshes are movably clamped inside the placement grooves.

[0015] A method for recycling and reusing waste asphalt includes the following steps:

[0016] S1. First, place the device at a designated site. Then connect the water inlet pipe and the connecting pipe to the high-pressure water pump, and turn on the atomizing nozzle to perform atomized water spraying.

[0017] S2. During operation, pour the waste asphalt into the crushing box through the feed hopper. The atomizing nozzle uses the atomized water droplets to adsorb the dust in the surrounding environment.

[0018] S3. Then start the first drive motor to slide the sealing plate. The first drive motor drives the crushing rollers to crush the waste asphalt into an appropriate particle size. Then it enters the vibrating sieve box. The high-pressure water pipe sprays and washes through the nozzles. The vibrator cooperates with the damping telescopic rod and the spring to perform screening through the sieve plate.

[0019] S4. Then start the second drive motor. The electric telescopic rod contracts the feed door. The second drive motor drives the lead screw to move the push plate in the channel, and sends the screened asphalt into the mixing box. Start the third drive motor. The third drive motor drives the mixing blades and the mixing shaft to cooperate with the heater for heating and stirring. The gas filter box cooperates with the activated carbon filter mesh for filtering to ensure that no secondary pollution is caused to the environment.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. For the waste asphalt recycling and reusing device and method, the sieve plate inside the vibrating sieve box vibrates through the vibrator and the elastic action of the spring, and cooperates with the high-pressure water pipe and the nozzles for spraying and washing, which efficiently realizes the screening of waste asphalt. By optimizing the crushing particle size and screening efficiency, the quality and stability of the recycled asphalt are improved. At the same time, the gas filter box and the detachable activated carbon filter mesh effectively control the dust gas during the crushing, screening and stirring processes, reduce environmental pollution, effectively avoid secondary pollution, and the detachable setting ensures the filtering effect.

[0022] 2. The mixing blades are internally provided with heaters, which makes the heating speed faster and the heating more uniform, improving the working efficiency of recycling and reusing waste asphalt. At the same time, the double mixing blades and the mixing shaft make the mixing more uniform. At the same time, it also strengthens the treatment of harmful substances during the heating process to ensure that no secondary pollution is caused to the environment. Secondly, a drain port is provided at the bottom of the vibrating sieve box to realize the storage and centralized treatment of the sprayed and washed wastewater. After the pollutants are effectively treated and meet the standards, they are discharged, effectively protecting the environment.

[0023] 3. An atomizing nozzle is provided inside the feed hopper, and a high-pressure water pump is externally connected through a water inlet pipe. The atomized water droplets are used to adsorb the dust in the surrounding environment, thus solving the problem of environmental pollution caused by a large amount of dust generated during feeding, ensuring the physical health of construction workers. At the same time, for the openable feed hopper, the internal sealing plate of the feed hopper is manually moved in the slideway to avoid the situation of waste asphalt splashing and causing danger during crushing, ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the present invention.

[0025] Figure 2 It is a schematic structural diagram of another perspective of the present invention.

[0026] Figure 3 It is a schematic structural diagram of the crushing mechanism of the present invention.

[0027] Figure 4 It is a schematic structural diagram of the stirring mechanism of the present invention.

[0028] Figure 5 It is a schematic disassembled structural diagram of the vibrating screen mechanism of the present invention.

[0029] Figure 6 For the present invention Figure 5 The enlarged view at A in the present invention.

[0030] Figure 7 It is a schematic structural diagram of the feed door of the present invention

[0031] Reference numerals in the drawings: 1, bottom plate; 2, crushing box; 3, cover plate; 4, feed hopper; 5, atomizing nozzle; 6, discharge port; 7, vibrating screen box; 8, feed door; 9, stirring box; 10, activated carbon filter screen; 11, smoke exhaust port; 12, support frame; 13, support top; 14, slideway; 15, sealing plate; 16, water inlet pipe; 17, first driving motor; 18, crushing roller; 19, rotating shaft; 20, high-pressure water pipe; 21, connecting pipe; 22, nozzle; 23, sieve plate; 24, damping telescopic rod; 25, spring; 26, installation groove; 27, vibrator; 28, drain port; 29, through groove; 30, electric telescopic rod; 31, push plate; 32, groove block; 33, groove; 34, lead screw; 35, threaded hole; 36, second driving motor; 37, stirring blade; 38, stirring shaft; 39, heater; 40, third driving motor; 41, gas filtration box; 42, placement groove; 43, discharge port; 44, knob valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] Referring to Figures 1 - 7 , the present invention provides a technical solution: a device and method for recycling waste asphalt, including a bottom plate 1. At one end, a crushing box 2 is provided on the top of the bottom plate 1, and a cover plate 3 is provided on the top of the crushing box 2. Above the cover plate 3, an openable and closable feed hopper 4 is provided, and an atomizing nozzle 5 is provided inside the feed hopper 4. A crushing mechanism is provided inside the crushing box 2, and a discharge port 6 is provided inside the bottom plate 1 below the crushing box 2. A vibrating sieve box 7 is provided at the bottom of the discharge port 6, and a vibrating sieve mechanism is provided inside the vibrating sieve box 7. An automatically openable feed door 8 is provided on one side of the vibrating sieve box 7, and a mixing box 9 is provided on the side of the feed door 8. A mixing mechanism is provided inside the mixing box 9, and a detachable activated carbon filter screen 10 is provided on the top surface of the other end of the bottom plate 1 above the mixing box 9. The activated carbon in the activated carbon filter screen 10 has a strong adsorption capacity, which can effectively adsorb harmful components such as organic matter and sulfide in the gas, effectively avoiding harm to the environment. A smoke exhaust port 11 is provided above the activated carbon filter screen 10. A support frame 12 is provided at the bottom of the bottom plate 1, and a support top 13 is provided at the bottom of the support frame 12 to ensure the overall stability of the device. A slideway 14 is provided inside the upper part of the feed hopper 4, and a sealing plate 15 matching the slideway 14 is provided inside the feed hopper 4 and is slidably connected. An inlet pipe 16 is provided outside the feed hopper 4 on the side of the atomizing nozzle 5. The atomized water droplets are used to adsorb the dust in the surrounding environment, thus solving the problem of environmental pollution caused by a large amount of dust generated during feeding.

[0034] Referring to Figure 3 , the crushing mechanism includes a first driving motor 17, a crushing roller 18, and a rotating shaft 19. Crushing rollers 18 are provided on both sides inside the crushing box 2. The side of the crushing roller 18 is connected to the inside of the crushing box 2 through the rotating shaft 19, and the rotating shaft 19 on the side of one end of the crushing roller 18 extends outside the crushing box 2. A first driving motor 17 is provided outside the crushing box 2, and the output end of the first driving motor 17 is connected to the rotating shaft 19 to form a crushing structure, crushing the waste asphalt into an appropriate particle size and performing screening and grading to prepare for subsequent treatment.

[0035] Referring to Figure 5 , Figure 6 , Figure 7, the vibrating sieve mechanism includes a high-pressure water pipe 20, a connecting pipe 21, a nozzle 22, a sieve plate 23, a damping telescopic rod 24, a spring 25, a mounting groove 26, a vibrator 27, and a drain port 28. The high-pressure water pipe 20 is arranged inside the vibrating sieve box 7 outside the discharge port 6. The nozzle 22 is arranged at the bottom of the high-pressure water pipe 20. The connecting pipe 21 is arranged outside the vibrating sieve box 7, and the connecting pipe 21 is connected to the high-pressure water pipe 20. The drain port 28 is arranged at the bottom of the vibrating sieve box 7; a mounting groove 26 is arranged inside one end of the vibrating sieve box 7, and multiple groups of damping telescopic rods 24 are arranged inside the mounting groove 26. Springs 25 are arranged outside the damping telescopic rods 24, and a sieve plate 23 is arranged on the side of the damping telescopic rod 24. A vibrator 27 is arranged outside the vibrating sieve box 7 on the side of the other end of the sieve plate 23 to form a vibrating sieve structure; a through groove 29 is arranged inside one end of the vibrating sieve box 7, and a feeding door 8 is arranged inside the through groove 29. The bottom of the feeding door 8 is connected to an electric telescopic rod 30 outside the vibrating sieve box 7; a push plate 31 is arranged inside the other end of the vibrating sieve box 7, and groove blocks 32 are arranged on both sides of the push plate 31. Groove channels 33 matching the groove blocks 32 are arranged on both sides inside the vibrating sieve box 7 and are in sliding connection. A lead screw 34 is arranged inside one end of the groove channel 33, a threaded hole 35 matching the lead screw 34 is arranged inside the groove block 32, and a second driving motor 36 is connected to the side of the lead screw 34 outside the vibrating sieve box 7 to form a feeding structure, which helps to improve the screening efficiency of waste asphalt and improve the quality and stability of recycled asphalt.

[0036] Referring to Figure 4 , the stirring mechanism includes stirring blades 37, a stirring shaft 38, a heater 39, a third driving motor 40, a discharge port 43, and a knob valve 44. The third driving motor 40 is arranged on both sides of the top of the bottom plate 1 above the stirring box 9. The output end of the third driving motor 40 is connected to the stirring shaft 38, and the stirring shaft 38 is located inside the stirring box 9. Multiple groups of stirring blades 37 are arranged outside the stirring shaft 38, and a heater 39 is arranged inside the stirring blades 37 to form a stirring structure. The discharge port 43 is arranged at the bottom of the stirring box 9, and the knob valve 44 is arranged outside the discharge port 43; a gas filter box 41 is arranged on the top surface of the bottom plate 1 between the third driving motors 40, and multiple groups of placement grooves 42 are arranged inside the gas filter box 41. Activated carbon filter meshes 10 are arranged inside the placement grooves 42 in an activity clamping connection, making the stirring more uniform. At the same time, it also strengthens the treatment of harmful substances during the heating process to ensure that no secondary pollution is caused to the environment.

[0037] Specifically, for the method of the waste asphalt recycling and reuse device, first place the device at a designated site, then connect the water inlet pipe 16 and the connecting pipe 21 to a high-pressure water pump, and open the atomizing nozzle 5 to perform atomizing water spraying;

[0038] During operation, waste asphalt is poured into the crushing box 2 through the feed hopper 4. The atomizing nozzle 5 uses atomized water droplets to adsorb dust in the surrounding environment. Then, the first driving motor 17 is started to slide the sealing plate 15, and the first driving motor 17 drives the crushing roller 18 to crush the waste asphalt into an appropriate particle size. Immediately afterwards, it enters the vibrating sieve box 7. The high-pressure water pipe 20 sprays and washes through the nozzle 22. The vibrator 27 cooperates with the damping telescopic rod 24 and the spring 25 to screen through the sieve plate 23. Then, the second driving motor 36 is started, and the electric telescopic rod 30 contracts the feed door 8. The second driving motor 36 drives the lead screw 34 to move the push plate 31 in the channel 33, and the screened asphalt is sent into the mixing box 9. The third driving motor 40 is started, and the third driving motor 40 drives the mixing blades 37 and the mixing shaft 38 to cooperate with the heater 39 for heating and mixing. The gas filtration box 41 cooperates with the activated carbon filter screen 10 for filtration to ensure that no secondary pollution is caused to the environment.

[0039] The above is only a 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 and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A waste asphalt recycling and reuse device, comprising a bottom plate (1), characterized in that: A crushing box (2) is arranged on the top of the bottom plate (1) at one end, and a cover plate (3) is arranged on the top of the crushing box (2); an openable and closable feeding hopper (4) is arranged above the cover plate (3), and an atomizing nozzle (5) is arranged inside the feeding hopper (4); a crushing mechanism is arranged inside the crushing box (2); a discharge port (6) is arranged inside the bottom plate (1) below the crushing box (2); a vibration screening box (7) is arranged at the bottom of the discharge port (6), and a vibration screening mechanism is arranged inside the vibration screening box (7); an automatically opening and closing feeding door (8) is arranged on the side of the vibration screening box (7) at one end, and a stirring box (9) is arranged on the side of the feeding door (8), and a stirring mechanism is arranged inside the stirring box (9); a detachable activated carbon filter (10) is arranged on the top surface of the bottom plate (1) at the other end above the stirring box (9), and a smoke exhaust port (11) is arranged above the activated carbon filter (10).

2. The waste asphalt recovery and reuse device according to claim 1, characterized in that: A slideway (14) is arranged on the inner side above the feed hopper (4), and a sealing plate (15) matching the slideway (14) is arranged inside the feed hopper (4) in a sliding connection, and a water inlet pipe (16) is arranged on the side of the atomizing nozzle (5) outside the feed hopper (4).

3. The waste asphalt recovery and reuse device according to claim 1, characterized in that: The crushing mechanism comprises a first drive motor (17), a crushing roller (18), and a rotating shaft (19), and crushing rollers (18) are arranged on both sides of the crushing box (2), the side of the crushing roller (18) is connected to the inside of the crushing box (2) through the rotating shaft (19), and the rotating shaft (19) on the side of the crushing roller (18) at one end extends to the outside of the crushing box (2), and the first drive motor (17) is arranged on the outside of the crushing box (2), and the output end of the first drive motor (17) is connected to the rotating shaft (19) to form a crushing structure.

4. The waste asphalt recovery and reuse device according to claim 1, characterized in that: The vibrating screen mechanism comprises a high-pressure water pipe (20), a connecting pipe (21), a nozzle (22), a screen plate (23), a damping telescopic rod (24), a spring (25), a mounting groove (26), a vibrator (27), and a drain port (28); a high-pressure water pipe (20) is arranged outside the discharge port (6) and inside the vibrating screen box (7); a nozzle (22) is arranged at the bottom of the high-pressure water pipe (20); a connecting pipe (21) is arranged outside the vibrating screen box (7); the connecting pipe (21) is connected to the high-pressure water pipe (20), and a drain port (28) is arranged at the bottom of the vibrating screen box (7).

5. The waste asphalt recovery and reuse device according to claim 4, characterized in that: A mounting groove (26) is arranged inside the vibration screen box (7) at one end, and a plurality of groups of damping telescopic rods (24) are arranged inside the mounting groove (26), a spring (25) is arranged outside the damping telescopic rod (24), and a screen plate (23) is arranged on the side of the damping telescopic rod (24), and a vibrator (27) is arranged on the side of the screen plate (23) at the other end, which is located outside the vibration screen box (7), to form a vibration screen structure.

6. The waste asphalt recovery and reuse device according to claim 1, characterized in that: A through slot (29) is provided inside the vibration screen box (7) at one end, and a feed door (8) is provided inside the through slot (29); the bottom of the feed door (8) is located outside the vibration screen box (7) and is connected to an electric telescopic rod (30).

7. The waste asphalt recovery and reuse device according to claim 6, characterized in that: A push plate (31) is arranged inside the vibration screen box (7) at the other end, and groove blocks (32) are arranged on both sides of the push plate (31), grooves (33) matching the groove blocks (32) are arranged on both sides of the vibration screen box (7) to be slidably connected, and a screw rod (34) is arranged inside the groove (33) at one end, and a threaded hole (35) matching the screw rod (34) is arranged inside the groove block (32), and the side of the screw rod (34) is located outside the vibration screen box (7) and is connected to a second drive motor (36) to form a feeding structure.

8. The waste asphalt recovery and reuse device according to claim 1, characterized in that: The stirring mechanism comprises a stirring blade (37), a stirring shaft (38), a heater (39), a third driving motor (40), a discharge port (43), and a knob valve (44), and the third driving motor (40) is arranged on both sides of the top of the bottom plate (1) above the stirring box (9), the output end of the third driving motor (40) is connected to the stirring shaft (38), and the stirring shaft (38) is located inside the stirring box (9), a plurality of stirring blades (37) are arranged outside the stirring shaft (38), and a heater (39) is arranged inside the stirring blades (37) to form a stirring structure, and a discharge port (43) is arranged at the bottom of the stirring box (9), and a knob valve (44) is arranged outside the discharge port (43).

9. The waste asphalt recovery and reuse device according to claim 1, characterized in that: A support frame (12) is arranged at the bottom of the base plate (1), and a support top (13) is arranged at the bottom of the support frame (12); a gas filter box (41) is arranged on the top surface of the base plate (1) between the third drive motor (40), and a plurality of groups of placement grooves (42) are arranged inside the gas filter box (41); an activated carbon filter screen (10) is arranged inside the placement groove (42) in a movable snap-on manner.

10. A method based on the waste asphalt recovery and reuse device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, place the device at a designated location, then connect the water inlet pipe (16) and the connecting pipe (21) to a high-pressure water pump, turn on the atomizing nozzle (5), and spray water by atomization; S2, when working, the waste asphalt is poured into the crushing box (2) through the feed hopper (4), and the atomizing nozzle (5) uses atomized water droplets to absorb dust in the surrounding environment; S3, then start the first drive motor (17), slide the sealing plate (15), and the first drive motor (17) drives the crushing roller (18) to crush the waste asphalt into a suitable particle size, and then enter the vibration screen box (7), the high-pressure water pipe (20) sprays through the nozzle (22), and the vibrator (27) cooperates with the damping telescopic rod (24) and the spring (25) to screen through the screen plate (23); S4, then start the second drive motor (36), the electric telescopic rod (30) retracts the feed door (8), the second drive motor (36) drives the screw rod (34) to move the push plate (31) in the groove (33), and the screened asphalt is sent into the mixing box (9), and start the third drive motor (40), the third drive motor (40) drives the stirring blade (37), the stirring shaft (38) cooperates with the heater (39) to heat and stir, and the gas filter box (41) cooperates with the activated carbon filter (10) to filter, so as to ensure that no secondary pollution is caused to the environment.

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