Waste asphalt mixture aggregate separation equipment

Abstract

The invention relates to the technical field of asphalt recovery, and discloses waste asphalt mixture aggregate separation equipment which comprises a separation box with an annular heater arranged on the inner wall. The centrifugal barrel is rotationally connected into the separation box and located in the annular heater, sieve holes are evenly distributed in the side wall of the centrifugal barrel, and a top cover is arranged at the top of the centrifugal barrel; the stirring shaft longitudinally penetrates into the centrifugal barrel, and a plurality of stirring rods are arranged on the stirring shaft; the inner gear ring is arranged on a top cover of the centrifugal barrel, the driving gear is arranged on the stirring shaft and located above the centrifugal barrel, the transmission gear is rotationally connected to the top of an inner cavity of the separation box, and the transmission gear is meshed with the inner gear ring and the transmission gear; the driving part is arranged on the centrifugal shell, the driving part is connected with the stirring shaft, and the driving part is used for driving the stirring shaft to rotate; according to the waste asphalt mixture aggregate separation equipment, asphalt aggregates can be prevented from being bonded into large-size lumps under the action of the stirring mechanism, the heating time of the asphalt aggregates is shortened, and the energy consumption of the equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of asphalt recycling, and particularly relates to an aggregate separation device for waste asphalt mixture. Background Art

[0002] Waste asphalt mixed aggregate refers to asphalt mixture that has been used and recycled from roads or other projects. Its components mainly include asphalt and granular aggregate. In order to achieve resource reuse and waste treatment, the asphalt component is often separated from the mixture and recycled. The previous separation methods for asphalt and aggregate mainly include thermal separation, solvent extraction, and cold separation.

[0003] In the prior art, the aggregate separation device for waste asphalt mixture using the thermal separation method mainly consists of a heating mechanism, a stirring mechanism, and a screening mechanism arranged in a separation box (such as patents with publication numbers: CN118813280A and CN117139323A, etc.). By adding the crushed waste asphalt mixture aggregate into the device, the heating mechanism is used to heat the piled waste asphalt mixture aggregate, the stirring mechanism is used to stir the piled asphalt mixture aggregate, and finally, after the waste asphalt mixture aggregate melts, the asphalt and aggregate are separated by the screening mechanism. Although the above separation device can complete the separation work of asphalt and aggregate, since asphalt is a material with a low thermal conductivity and a slow heat transfer speed, it is difficult to make the piled asphalt heat evenly and quickly. In the initial stage of heating, the situation that often occurs is that the melted asphalt mixture aggregate on the periphery and the unmelted asphalt mixture aggregate form a large and viscous mass under the action of the stirring mechanism. This mass of asphalt requires a long heating time for the heat to be transferred to the inside and be completely melted, so as to meet the conditions for screening, which results in high energy consumption of the device. Summary of the Invention

[0004] The present invention provides an aggregate separation device for waste asphalt mixture to solve the above deficiencies in the prior art. The aggregate separation device for waste asphalt mixture can avoid the asphalt aggregate from bonding into a large mass under the action of the stirring mechanism, reduce the heating time of the asphalt aggregate, and reduce the energy consumption of the device.

[0005] The technical solution of the present invention is: an aggregate separation device for waste asphalt mixture, including a separation box, on the inner wall of which an annular heater is provided, and further including:

[0006] A centrifugal barrel, rotatably connected in the separation box, the centrifugal barrel is located inside the annular heater, the side wall of the centrifugal barrel is evenly provided with screen holes, the centrifugal barrel has a top cover, and a feed port is provided on the top cover of the centrifugal barrel;

[0007] The stirring shaft longitudinally penetrates into the centrifugal barrel, and a plurality of stirring rods are provided on the stirring shaft;

[0008] The transmission part includes an internal gear ring, a driving gear and a transmission gear. The internal gear ring is arranged on the top cover of the centrifugal barrel. The driving gear is arranged on the stirring shaft. The driving gear is located above the centrifugal barrel. The transmission gear is rotatably connected to the top of the inner cavity of the separation box. The transmission gear meshes with the internal gear ring and the driving gear respectively;

[0009] The driving part is arranged on the centrifugal housing and is connected to the stirring shaft for driving the stirring shaft to rotate; when the stirring shaft drives the plurality of stirring rods to rotate, the driving gear is used to drive the transmission gear to rotate, so that the internal gear ring and the centrifugal barrel rotate in the opposite direction of the rotation direction of the stirring rods, and further the asphalt melted by the annular heater is thrown out from the sieve holes.

[0010] In at least one embodiment of the present invention, a plurality of longitudinal guide rods are provided at the bottom end of the internal gear ring. The plurality of guide rods penetrate into the centrifugal barrel. The centrifugal barrel is slidably connected to the plurality of guide rods and the stirring shaft. A first spring is sleeved between the centrifugal barrel and the internal gear ring on the plurality of guide rods. An end face bearing abutted against the internal gear ring is provided at the top of the inner cavity of the separation box. A vibration mechanism is further connected to the centrifugal barrel. The vibration mechanism includes: a butting ring and a plurality of rollers. The butting ring is arranged below the centrifugal barrel in the separation box. A wavy slide rail is provided at the top of the butting ring. The plurality of rollers are all rotatably connected to the bottom of the centrifugal barrel. The plurality of rollers are all embedded in the wavy slide rail.

[0011] In at least one embodiment of the present invention, the bottom end of the stirring shaft penetrates out of the centrifugal barrel. The stirring shaft is a hollow shaft. The plurality of stirring rods are all pipe bodies. The plurality of stirring rods communicate with the inner cavity of the stirring shaft. A plurality of air outlet holes are provided on the plurality of stirring rods. The bottom end of the stirring shaft is communicated with a compressed air assembly. The compressed air assembly is used to introduce high-pressure gas into the stirring shaft.

[0012] In at least one embodiment of the present invention, a mounting disc is rotatably connected below the centrifugal barrel on the stirring shaft. A plurality of sliding rods are provided at the bottom of the centrifugal barrel. The sliding rods pass through the mounting disc. A second spring is sleeved between the mounting disc and the centrifugal barrel on the plurality of sliding rods. The compressed air assembly includes: a compressed air cylinder and a piston. The compressed air cylinder is longitudinally rotatably connected to the bottom end of the stirring shaft. A one-way air outlet valve communicating with the inner cavity of the stirring shaft is provided in the compressed air cylinder. A one-way air inlet valve is provided on the side wall of the compressed air cylinder. The piston is arranged in the compressed air cylinder. A piston rod passing through the compressed air cylinder is provided on the piston. The plurality of sliding rods are connected to the piston rod.

[0013] In at least one embodiment of the present invention, a receiving ring is provided on the inner wall of the separation box, the abutment ring is arranged on the top of the receiving ring, the receiving ring is provided with an annular receiving groove, and the receiving groove is connected to a discharge pipe passing through the separation box.

[0014] In at least one embodiment of the present invention, the distance between the ends of the plurality of stirring rods away from the stirring shaft and the inner wall of the centrifugal barrel is 4 cm to 6 cm.

[0015] In at least one embodiment of the present invention, the bottom ends of the wave-shaped slide rails on the abutment ring are all bar-shaped teeth, and the plurality of rollers are all toothed rollers meshing with the bar-shaped teeth.

[0016] In at least one embodiment of the present invention, the plurality of stirring rods are perpendicular to the stirring shaft, and the air outlet holes on the plurality of stirring rods are oriented toward the bottom of the inner cavity of the centrifugal barrel.

[0017] In at least one embodiment of the present invention, a discharge port is provided at the bottom of the centrifugal barrel, a fan-shaped discharge door is hinged on the discharge port, an electromagnet is provided at the bottom of the centrifugal barrel, a connecting block matching the fan-shaped discharge door is provided on the fan-shaped discharge door, a closing rod is vertically provided on the inner wall of the receiving ring, a one-way bearing is provided on the stirring shaft, and the driving gear is mounted on the one-way bearing.

[0018] In at least one embodiment of the present invention, when the centrifugal bucket moves to the uppermost position, the stirring rod located at the lowermost position on the stirring shaft fits against the bottom of the inner cavity of the centrifugal bucket.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention provides a centrifugal barrel rotatably connected to a separation box, a stirring shaft longitudinally arranged in the centrifugal barrel, and a transmission part composed of an inner gear ring, a driving gear and a transmission gear. When the stirring shaft drives the stirring rod to stir the asphalt mixture aggregate in the centrifugal barrel, the stirring shaft will drive the driving gear to rotate at the same time, and the driving gear drives the inner gear ring to rotate through the transmission gear, so that the inner gear ring drives the centrifugal barrel to rotate in the opposite direction of the rotation direction of the stirring shaft. The centrifugal force generated during the rotation of the centrifugal barrel will cause the asphalt melted on the periphery to quickly separate from the sieve hole of the centrifugal barrel, so as to avoid the asphalt aggregate being bonded into a large mass under the action of the stirring mechanism, resulting in too long a heating time of the equipment, so as to facilitate the rapid heating and melting of the remaining aggregate in the centrifugal barrel. At the same time, the stirring rod can stir at a faster speed relative to the asphalt mixture aggregate in the centrifugal barrel, so as to accelerate the rapid heating of the asphalt mixture aggregate inside, thereby reducing the heating time of the asphalt aggregate as a whole and reducing the energy consumption of the equipment.

[0021] 2. The present invention is provided with an abutting ring with a wavy slide rail below the centrifugal barrel, a roller matching with the centrifugal barrel at the bottom of the centrifugal barrel, and an internal gear ring supported by a guide rod and a spring at the top of the centrifugal barrel. During the rotation of the centrifugal barrel, multiple rollers slide in the wavy slide rail. Under the action of the wavy slide rail, while the centrifugal barrel rotates around the stirring shaft, it also makes a vertical movement relative to the stirring shaft, thereby driving the asphalt mixture aggregate in the centrifugal barrel to vibrate up and down, making the asphalt mixture aggregate looser, accelerating the heat melting of the asphalt mixture aggregate, and at the same time, the vibration of the centrifugal barrel can make the melted asphalt flow out of the centrifugal barrel quickly, so as to enable the subsequent remaining asphalt mixture aggregate to be heated and melted quickly, further reducing the heating time of the asphalt aggregate and lowering the energy consumption of the equipment.

[0022] 3. The present invention sets the stirring shaft and multiple stirring rods to be hollow and connected in a communicating form, sets multiple air outlet holes on each stirring rod, rotatably connects a compressed air cylinder with a one-way intake valve and a one-way exhaust valve at the bottom of the stirring shaft, and under the cooperation of a sliding rod connected to the piston rod at the bottom of the centrifugal barrel, the sliding rod makes a vertical movement relative to the compressed air cylinder driven by the centrifugal barrel, and then drives the piston to make a vertical movement in the compressed air cylinder through the piston rod, pressing the high-temperature gas in the separation box into the stirring shaft, and finally discharging it into the asphalt mixture aggregate from the air outlet holes of the stirring rod. The high-temperature gas can make the asphalt mixture aggregate looser, facilitating its rapid heating, and at the same time accelerating the rapid melting inside the asphalt mixture aggregate; reducing the heating time of the asphalt aggregate and lowering the energy consumption of the equipment.

[0023] 4. The present invention is provided with a discharge port at the bottom of the centrifugal barrel, a sector-shaped discharge door controlled by an electromagnet to be closed is hinged in the discharge port, and a one-way bearing for sleeving an active gear is arranged on the stirring shaft. And under the cooperation of the closing rod, after the separation of asphalt and aggregate is completed and the aggregate in the centrifugal barrel needs to be discharged, the sector-shaped discharge door can be opened by the electromagnet, and at the same time, the stirring shaft is driven to reverse by the driving part. Due to the action of the one-way bearing, the centrifugal barrel does not rotate, and then the stirring shaft drives the stirring rod to push the aggregate in the centrifugal barrel out of the discharge port. After the discharge of the aggregate in the separation barrel is completed, the driving part is controlled to rotate forward to drive the separation barrel to rotate forward. The sector-shaped discharge door will abut against the discharge rod, causing the sector-shaped discharge door to deflect and complete the closing under the action of the electromagnet, so as to facilitate the next separation work; the entire discharge process can be completed only by controlling the forward and reverse rotation of the electromagnet and the driving part, making the operation and use of the equipment more convenient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall front sectional structure of the present invention.

[0025] Figure 2 For the present invention Figure 1Local structure diagram Figure 1 .

[0026] Figure 3 It is a schematic diagram of a top view and a cross-sectional structure of the present invention.

[0027] Figure 4 For the present invention Figure 1 Local structure diagram Figure 2 .

[0028] Figure 5 For the present invention Figure 4 Schematic diagram of the detailed structure at point A in the middle.

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure viewed from above of the present invention.

[0030] Description of reference numerals:

[0031] 1. Separation box; 11. Ring heater; 2. Centrifugal barrel; 21. Feed port; 22. Sliding rod; 3. Stirring shaft; 31. Stirring rod; 32. Mounting plate; 4. Transmission unit; 41. Internal gear ring; 411. Guide rod; 412. End bearing; 42. Driving gear; 43. Transmission gear; 5. Drive unit; 6. Vibration mechanism; 61. Abutment ring; 62. Roller; 7. Compressed air assembly; 71. Compressed air cylinder; 72. Piston; 721. Piston rod; 8. Receiver ring; 81. Receiver groove; 82. Discharge pipe; 9. Fan-shaped discharge door; 91. Electromagnet; 92. Connecting block; 93. Door closing rod; 94. One-way bearing. DETAILED DESCRIPTION

[0032] The drawings in the present invention are not drawn strictly according to the actual scale, and the specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structures.

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Inside", "outside", "above", "below", "far", "near", "front", "rear", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0035] Combined Figures 1 to 6 As shown, a waste asphalt mixture aggregate separation device includes a separation tank 1. An annular heater 11 is provided on the inner wall of the separation tank 1. The annular heater 11 is a heat source for melting the asphalt mixture aggregate. A concrete-polyurethane thermal insulation layer is provided on the outer wall of the separation tank 1. A loading port is opened at the top of the separation tank 1. A loading door is hinged inside the loading port. The thermal insulation layer and the loading door are both used to reduce the heat dissipation in the separation tank 1, thereby reducing the energy consumption of the device. It further includes:

[0036] A centrifugal barrel 2 is rotatably connected in the separation tank 1. The centrifugal barrel 2 is located inside the annular heater 11. Sieve holes are evenly distributed on the side wall of the centrifugal barrel 2. Specifically, the diameter of the sieve holes is 0.01 mm to 0.03 mm. The centrifugal barrel 2 has a top cover. A feed inlet 21 is provided on the top cover of the centrifugal barrel 2. The feed inlet 21 is slightly larger than the loading port at the top of the separation tank 1.

[0037] A stirring shaft 3 longitudinally penetrates into the centrifugal barrel 2. A plurality of stirring rods 31 are provided on the stirring shaft 3. The stirring rods 31 are used to stir the asphalt mixture aggregate so that the asphalt mixture aggregate can be quickly heated and melted. Specifically, the stirring shaft 3 and the stirring rods 31 are made of a high-hardness metal alloy, and the high-hardness metal alloy has high hardness and wear resistance, so as to reduce the wear of the asphalt mixture aggregate on it.

[0038] The transmission part 4 includes an internal gear ring 41, a driving gear 42 and a transmission gear 43. The internal gear ring 41 is arranged on the top cover of the centrifugal barrel 2. The driving gear 42 is arranged on the stirring shaft 3. The driving gear 42 is located above the centrifugal barrel 2. The transmission gear 43 is rotatably connected to the top of the inner cavity of the separation box 1. The transmission gear 43 meshes with the internal gear ring 41 and the transmission gear 43 respectively. Specifically, to ensure more stable transmission, four transmission gears 43 are provided. The four transmission gears 43 are evenly arranged between the internal gear ring 41 and the driving gear 42. While the stirring shaft 3 drives the stirring rod 31 to stir the asphalt mixture aggregate in the centrifugal barrel 2, it will drive the driving gear 42 to rotate. The driving gear 42 drives a plurality of transmission gears 43 to rotate. The plurality of transmission gears 43 drive the internal gear ring 41 to rotate. The internal gear ring 41 drives the centrifugal barrel 2 to rotate. The rotation direction of the centrifugal barrel 2 is opposite to that of the driving gear 42, thereby increasing the stirring speed of the stirring rod 31 for the asphalt mixture aggregate.

[0039] The driving part 5 is arranged on the centrifugal housing 1. The driving part 5 is connected to the stirring shaft 3. The driving part 5 is used to drive the stirring shaft 3 to rotate. The driving part 5 is a low-speed high-torque motor. The driving part 5 can provide sufficient torque for the movement of the equipment. Although the rotation speed of the driving part 5 is low, due to the action of the internal gear ring 41, the driving gear 42 and the transmission gear 43, during the forward rotation of the driving part 5, the rotation directions of the stirring shaft 3 and the centrifugal barrel 2 are opposite. The stirring rod 31 arranged on the stirring shaft 3 can still stir the asphalt mixture aggregate in the centrifugal barrel 2 at a relatively high speed, so that the asphalt mixture aggregate can be heated quickly and evenly, reducing the heating time of the equipment and lowering the energy consumption of the equipment.

[0040] As an alternative embodiment, a plurality of longitudinal guide rods 411 are provided at the bottom end of the internal gear ring 41. The plurality of guide rods 411 penetrate into the centrifugal barrel 2. The centrifugal barrel 2 is slidably connected to the plurality of guide rods 411 and the stirring shaft 3. A first spring is sleeved between the centrifugal barrel 2 and the internal gear ring 41 on the plurality of guide rods 411. An end face bearing 412 that abuts against the internal gear ring 41 is provided at the top of the inner cavity of the separation box 1. The internal gear ring 41 always abuts against the end face bearing 412 to ensure that the internal gear ring 41 is always in a meshing state with the plurality of transmission gears 43. A vibration mechanism 6 is further connected to the centrifugal barrel 2. The vibration mechanism 6 includes: a butting ring 61 and a plurality of rollers 62. The butting ring 61 is arranged below the centrifugal barrel 2 in the separation box 1. A wavy slide rail is provided at the top of the butting ring 61. The plurality of rollers 62 are all rotatably connected to the bottom of the centrifugal barrel 2. The plurality of rollers 62 are all embedded in the wavy slide rail. During the rotation of the centrifugal barrel 2, the plurality of rollers 62 slide in the wavy slide rail. Under the action of the wavy slide rail, the centrifugal barrel 2 makes a vertical movement relative to the stirring shaft 3 while rotating around the stirring shaft 3, thereby driving the asphalt mixture aggregate in the centrifugal barrel 2 to vibrate up and down to accelerate the heating and melting of the asphalt mixture aggregate.

[0041] As an alternative embodiment, the bottom end of the stirring shaft 3 passes through the centrifugal barrel 2. The stirring shaft 3 is a hollow shaft, and multiple stirring rods 31 are all tube bodies. The multiple stirring rods 31 communicate with the inner cavity of the stirring shaft 3. Multiple air outlet holes are provided on the multiple stirring rods 31. The bottom end of the stirring shaft 3 is communicated with a compressed air assembly 7. The compressed air assembly 7 is used to introduce high-pressure gas into the stirring shaft 3, so that the asphalt mixture aggregate in the centrifugal barrel 2 is loose and porous, and then is quickly heated and melted.

[0042] As an alternative embodiment, a mounting disc 32 is rotatably connected below the centrifugal barrel 2 on the stirring shaft 3. A plurality of sliding rods 22 are provided at the bottom of the centrifugal barrel 2. The sliding rods 22 pass through the mounting disc 32. Second springs are sleeved between the mounting disc 32 and the centrifugal barrel 2 on the plurality of sliding rods 22. The compressed air assembly 7 includes: a compressed air cylinder 71 and a piston 72. The compressed air cylinder 71 is longitudinally rotatably connected to the bottom end of the stirring shaft 3. A one-way air outlet valve communicating with the inner cavity of the stirring shaft 3 is provided in the compressed air cylinder 71. A one-way air inlet valve is provided on the side wall of the compressed air cylinder 71. The piston 72 is arranged in the compressed air cylinder 71. A piston rod 721 passing through the compressed air cylinder 71 is provided on the piston 72. The plurality of sliding rods 22 are connected to the piston rod 721; preferably, a plurality of mounting rings are provided on the circumferential direction of the compressed air cylinder 71. The plurality of mounting rings correspond to the plurality of sliding rods 22 one by one. Each sliding rod 22 passes through the corresponding mounting ring. A disc body is connected to the bottom end of the piston rod 721. The plurality of sliding rods 22 are all fixedly connected to the disc body. The plurality of sliding rods 22 are driven by the centrifugal barrel 2 to move up and down. Since the compressed air cylinder 71 is rotatably connected to the bottom end of the stirring shaft 3, the plurality of sliding rods 22 will drive the compressed air cylinder 71 and the centrifugal barrel 2 to rotate together through the disc body, the piston rod 721 and the piston 72. At this time, the plurality of sliding rods 22 move up and down relative to the compressed air cylinder 71, and then drive the piston 72 to move up and down in the compressed air cylinder 71 through the disc body. Due to the action of the one-way air outlet valve and the one-way air outlet valve, the high-temperature gas in the separation box 1 is pressed into the stirring shaft 3, and finally discharged into the asphalt mixture aggregate from the air outlet holes of the stirring rods 31. The high-temperature gas can make the asphalt mixture aggregate looser, facilitate its rapid heating, and at the same time accelerate the rapid melting inside the asphalt mixture aggregate.

[0043] As an alternative embodiment, a receiving ring 8 is provided on the inner wall of the separation box 1. The abutting ring 61 is arranged on the top of the receiving ring 8. The receiving ring 8 and the abutting ring 61 are integrally formed. An annular receiving groove 81 is provided on the receiving ring 8. The longitudinal projection of the outer wall of the centrifugal barrel 2 falls into the receiving groove 81. A discharge pipe 82 passing through the separation box 1 is communicated with the receiving groove 81; the asphalt liquid thrown out due to the rotation of the centrifugal barrel 2 will fall into the receiving groove 81 and finally be discharged from the separation box 1 through the discharge pipe 82.

[0044] As an alternative embodiment, the distance between the end of each of the plurality of stirring rods 31 away from the stirring shaft 3 and the inner wall of the centrifugal barrel 2 is 4 cm to 6 cm. Preferably, the distance between the end of the stirring rod 31 and the inner wall of the centrifugal barrel 2 is 5 cm, so as to prevent the stirring rod 31 from directly contacting the molten asphalt at the initial stage of asphalt aggregate melting, thereby bonding into a large-mass agglomerate and prolonging the heating time of the asphalt.

[0045] As an alternative embodiment, the bottom ends of the wavy slide rails on the abutting ring 61 are all strip teeth, and the plurality of rollers 62 are all toothed rollers meshing with the strip teeth; the arrangement of the strip teeth and the toothed rollers can ensure that the centrifugal barrel 2 rotates more stably on the wavy slide rail, preventing static friction between the rollers 62 and the wavy slide rail, thus affecting the normal operation of the centrifugal barrel 2.

[0046] As an alternative embodiment, the plurality of stirring rods 31 are all perpendicular to the stirring shaft 3, and the air outlet holes on the plurality of stirring rods 31 all face the bottom of the inner cavity of the centrifugal barrel 2; the downward arrangement of the air outlet holes on the stirring rods 31 and the action of gas flow can prevent the molten asphalt from blocking the air outlet holes as much as possible, and at the same time make the high-temperature gas coming out of the air outlet holes act on the inside of the asphalt waste as much as possible to accelerate the rapid melting of the asphalt waste.

[0047] As an alternative embodiment, as Figure 6 shown, a discharge port is provided at the bottom of the centrifugal barrel 2, a sector-shaped discharge door 9 is hinged on the discharge port, an electromagnet 91 is provided at the bottom of the centrifugal barrel 2, a connecting block 92 matching the sector-shaped discharge door 9 is provided on the sector-shaped discharge door 9, a closing rod 93 is vertically provided on the inner wall of the receiving ring 8, the closing rod 93 is close to the bottom of the centrifugal barrel 2, a one-way bearing 94 is provided on the stirring shaft 3, and the driving gear 42 is sleeved on the one-way bearing 94. When the driving part 5 rotates forward, the one-way bearing 94 is self-locking, and when the driving part 5 rotates reversely, the one-way bearing 94 rotates; preferably, two discharge ports are provided at the bottom of the centrifugal barrel 2, and sector-shaped discharge doors 9 are hinged on both discharge ports. The opening position of one sector-shaped discharge door 9 is close to the hinge of the other sector-shaped discharge door 9. When the sector-shaped discharge door 9 needs to be closed, the driving part 5 rotates forward to drive the centrifugal barrel 2 to rotate forward. Under the action of the closing rod 93, the two sector-shaped discharge doors 9 are closed and are both fixed on the centrifugal barrel 2 by the electromagnet 91.

[0048] As an alternative embodiment, when the centrifugal barrel 2 moves to the uppermost position, the lowermost stirring rod 31 on the stirring shaft 3 fits against the bottom of the inner cavity of the centrifugal barrel 2; during the process of the driving part 5 driving the stirring shaft 3 to rotate reversely, due to the reverse rotation of the one-way bearing 94, the centrifugal barrel 2 does not rotate, and the stirring rod 31 can rotate while fitting against the bottom of the inner cavity of the centrifugal barrel 2, and can quickly discharge all the aggregates in the centrifugal barrel 2 through the discharge port at the bottom of the centrifugal barrel 2.

[0049] As an alternative embodiment, a material receiving box is provided below the receiving ring 8 in the separation box 1. The material receiving box is used to receive the remaining aggregate after the asphalt is separated. The inner cavity diameter of the material receiving box is larger than the inner diameter of the receiving ring 8, and a discharge door for the material receiving box to enter and exit is provided on the side wall of the separation box 1.

[0050] The working principle and usage method of this embodiment are as follows:

[0051] The present invention provides a waste asphalt mixture aggregate separation device. When the waste asphalt mixture aggregate separation device is in use, the loading door on the separation box 1 is opened, and the crushed asphalt mixture aggregate is loaded into the centrifugal barrel 2 through the loading port and the feeding port 21 on the centrifugal barrel 2. Subsequently, the loading door is closed, and then the annular heater 11 is started for heating. During the heating of the asphalt mixture aggregate, the driving part 5 is started to rotate forward. The driving part 5 drives the stirring rod 31 to stir the asphalt mixture aggregate through the stirring shaft 3. At the same time, due to the self-locking of the one-way bearing 94, the stirring shaft 3 also drives the driving gear 42 to rotate through the one-way bearing 94. The driving gear 42 drives the internal gear ring 41 to rotate through a plurality of transmission gears 43, so that the internal gear ring 41 drives the centrifugal barrel 2 to rotate in the direction opposite to the rotation direction of the stirring shaft 3 through a plurality of guide rods 411, thereby relatively increasing the stirring speed of the stirring rod 31 for the asphalt mixture aggregate, enabling the asphalt mixture aggregate to be heated and melted quickly.

[0052] During the rotation of the centrifugal barrel 2, a plurality of rollers 62 at the bottom of the centrifugal barrel 2 slide in the wavy slide rail. Under the action of the wavy slide rail, while the centrifugal barrel 2 rotates around the stirring shaft 3, it also makes a vertical movement relative to the stirring shaft 3, thereby driving the asphalt mixture aggregate in the centrifugal barrel 2 to vibrate up and down to accelerate the heating and melting of the asphalt mixture aggregate.

[0053] And during the vertical movement of the centrifugal barrel 2, since the air compression cylinder 71 is rotatably connected to the bottom end of the stirring shaft 3, the centrifugal barrel 2 will drive the piston rod 721 to move up and down when moving up and down, so that the piston rod 721 drives the piston 72 in the air compression cylinder 71 to move up and down. At the same time, under the action of the one-way intake valve and the one-way exhaust valve of the air compression cylinder 71, the piston 72 can press the hot air in the separation box 1 into the stirring shaft 3. The hot air enters the inner cavity of the stirring rod 31 through the cavity in the stirring shaft 3, and finally the hot air is discharged from the air outlet holes on the stirring rod 31, so that the inside of the asphalt mixture aggregate can be quickly heated. In summary, the asphalt mixture aggregate is quickly heated and melted under the combined action of rapid stirring, vibration and the introduction of hot air. The melted asphalt mixture aggregate is thrown out under the action of the rotation of the centrifugal barrel 2 to realize the separation of the asphalt mixture aggregate; the thrown-out asphalt flows into the receiving groove 81 on the receiving ring 8, and finally the asphalt flows out of the separation box through the discharge pipe 82.

[0054] When it is necessary to discharge the aggregate in the centrifugal barrel 2 after the separation of asphalt from the asphalt mixture aggregate in the centrifugal barrel 2, when the centrifugal barrel 2 moves to the highest point under the action of the corrugated slide rail, the driving part 5 is closed. At this time, the stirring rod 31 at the bottom abuts against the bottom of the centrifugal barrel 2. Then, the electromagnetic iron 91 is energized to open the sector-shaped discharge door 9, and then the aggregate is discharged from the discharge port. During the discharge of the aggregate, the driving part 5 can be started to reverse to drive the stirring shaft 3 to reverse. During the reverse rotation of the stirring shaft 3, since the one-way bearing 94 rotates, the driving gear 42 does not rotate, so that the centrifugal barrel 2 does not rotate. The stirring rod 31 is driven to rotate by the stirring shaft 3 to pick out the aggregate in the centrifugal barrel 2, and finally the cleaning work of the remaining aggregate in the centrifugal barrel 2 is completed. Then, the electromagnetic iron 91 is started, and the stirring shaft 3 is driven to rotate forward again by the driving part 5. The working principle is the same as above, to drive the centrifugal barrel 2 to rotate forward, and to drive the sector-shaped discharge door 9 to close under the action of the closing rod 93, which is convenient for the next separation work of the waste asphalt mixture aggregate.

[0055] The above embodiments are only specific implementation manners of the present invention patent, which are used to illustrate the technical solutions of the present invention patent, rather than limiting it. The protection scope of the present invention patent is not limited thereto. Although the present invention patent has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or make equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions implemented by the present invention patent, and should all be covered by the protection scope of the present invention.

Claims

1. An aggregate separation device for waste asphalt mixture, comprising a separation box (1), wherein an annular heater (11) is provided on the inner wall of the separation box (1), and it is characterized in that, Further comprising: A centrifugal barrel (2), rotatably connected inside the separation box (1), and sieve holes are arranged on the side wall of the centrifugal barrel (2); A stirring shaft (3), longitudinally arranged inside the centrifugal barrel (2), and a plurality of stirring rods (31) are arranged on the stirring shaft (3); A transmission part (4), including an internal gear ring (41), a driving gear (42) and a transmission gear (43), the internal gear ring (41) is arranged on the centrifugal barrel (2), the driving gear (42) is arranged on the stirring shaft (3), the driving gear (42) is located above the centrifugal barrel (2), the transmission gear (43) is rotatably connected to the top of the inner cavity of the separation box (1), and the transmission gear (43) is respectively meshed with the internal gear ring (41) and the transmission gear (43); When the stirring shaft (3) drives the plurality of stirring rods (31) to rotate, the driving gear (42) is used to drive the transmission gear (43) to rotate, so that the internal gear ring (41) and the centrifugal barrel (2) rotate in the opposite direction of the rotation direction of the stirring rods (31), and further the asphalt melted by the annular heater (11) is thrown out from the sieve holes.

2. The waste asphalt mixture aggregate separation equipment according to claim 1, characterized in that, A plurality of longitudinal guide rods (411) are arranged at the bottom end of the internal gear ring (41), and the plurality of guide rods (411) penetrate into the centrifugal barrel (2). The centrifugal barrel (2) is slidably connected to the plurality of guide rods (411) and the stirring shaft (3). A first spring is sleeved between the centrifugal barrel (2) and the internal gear ring (41) on the plurality of guide rods (411). An end face bearing (412) abutting against the internal gear ring (41) is arranged at the top of the inner cavity of the separation box (1). A vibration mechanism (6) is further connected to the centrifugal barrel (2). The vibration mechanism (6) includes: a butting ring (61) and a plurality of rollers (62). The butting ring (61) is arranged below the centrifugal barrel (2) inside the separation box (1). A wavy slide rail is arranged at the top of the butting ring (61). The plurality of rollers (62) are all rotatably connected to the bottom of the centrifugal barrel (2), and the plurality of rollers (62) are all embedded in the wavy slide rail.

3. The aggregate separation device for waste asphalt mixture according to claim 2, wherein The bottom end of the stirring shaft (3) penetrates out of the centrifugal barrel (2). The stirring shaft (3) is a hollow shaft. The plurality of stirring rods (31) are all tube bodies. The plurality of stirring rods (31) are communicated with the inner cavity of the stirring shaft (3). A plurality of air outlet holes are arranged on each stirring rod (31). The bottom end of the stirring shaft (3) is communicated with a compressed air assembly (7), and the compressed air assembly (7) is used to introduce high-pressure gas into the stirring shaft (3).

4. The waste asphalt mixture aggregate separation device according to claim 3, wherein, A plurality of sliding rods (22) are arranged at the bottom of the centrifugal barrel (2). The compressed air assembly (7) includes: a compressed air cylinder (71) and a piston (72). The compressed air cylinder (71) is longitudinally and rotatably connected to the bottom end of the stirring shaft (3). A one-way air outlet valve communicated with the inner cavity of the stirring shaft (3) is arranged inside the compressed air cylinder (71). A one-way air inlet valve is arranged on the side wall of the compressed air cylinder (71). The piston (72) is arranged inside the compressed air cylinder (71). A piston rod (721) passing through the compressed air cylinder (71) is arranged on the piston (72). The plurality of sliding rods (22) are connected to the piston rod (721).

5. The aggregate separation device for waste asphalt mixture according to claim 2, wherein An abutting ring (61) is arranged on the top of a receiving ring (8) provided on the inner wall of the separation box (1). An annular receiving groove (81) is provided on the receiving ring (8), and a discharge pipe (82) passing through the separation box (1) is communicated with the receiving groove (81).

6. The aggregate separation device for waste asphalt mixture according to claim 2, wherein, The bottom ends of the wavy slide rails on the abutting ring (61) are all strip-shaped teeth, and a plurality of the rollers (62) are all toothed rollers meshing with the strip-shaped teeth.

7. The aggregate separation device for waste asphalt mixture according to claim 3, characterized in that, A plurality of the stirring rods (31) are all perpendicular to the stirring shaft (3), and the air outlet holes on the plurality of the stirring rods (31) all face the inner cavity bottom of the centrifugal barrel (2).

8. The aggregate separation device for waste asphalt mixture according to claim 5, characterized in that, A discharge port is provided at the bottom of the centrifugal barrel (2). A sector-shaped discharge door (9) is hinged in the discharge port. An electromagnet (91) is provided at the bottom of the centrifugal barrel (2). A connecting block (92) matching with the sector-shaped discharge door (9) is provided on the sector-shaped discharge door (9). A closing rod (93) is vertically provided on the inner wall of the receiving ring (8). A one-way bearing (94) is provided on the stirring shaft (3), and the driving gear (42) is sleeved on the one-way bearing (94).

9. The aggregate separation device for waste asphalt mixture according to claim 8, characterized in that, When the centrifugal barrel (2) moves to the uppermost position, the lowermost stirring rod (31) on the stirring shaft (3) is attached to the inner cavity bottom of the centrifugal barrel (2).

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