A road asphalt mixture recycling processing device

Abstract

The utility model relates to a kind of road asphalt mixture regeneration processing device, the top of base frame is fixedly installed with shell box, the top opening position of shell box is fixedly installed with assembly pipe, the top end of assembly pipe extends to the upper of shell box and is fixedly installed with conical tube II, barrier pipe is fixedly installed in shell box, separation mechanism is installed in barrier pipe, separation mechanism is used to separate asphalt and stone, the processing device further includes the crushing mechanism for being set in conical tube II, the crushing mechanism is used to preselect crushing to the asphalt pavement of recycling, so as to subsequent separation of asphalt and stone, separation mechanism top end extends to conical tube II and is connected with crushing mechanism;The device is suitable for the regeneration processing of waste asphalt mixture, effectively solve the problem that the crushing effect and separation effect are not good when separating asphalt and stone, reduce the asphalt recovery quality.

Description

Technical Field

[0001] This utility model belongs to the field of road construction technology and relates to a road asphalt mixture recycling processing device. Background Technology

[0002] In the field of road construction, asphalt pavement is widely used due to its advantages such as good smoothness, skid resistance, and driving comfort. However, as roads age, asphalt pavement gradually shows signs of aging and damage, requiring repair or renovation. This repair or renovation process generates a large amount of waste asphalt mixture. Directly discarding this waste asphalt mixture not only wastes resources but also pollutes the environment.

[0003] To achieve resource recycling and environmental protection, the reprocessing of waste asphalt mixtures has become an important treatment method. Currently, some asphalt mixture recycling equipment already exists on the market. These devices typically use a method of first crushing the waste asphalt pavement, then melting the asphalt through heating, and finally using a screen to separate the asphalt from the aggregate to achieve asphalt recycling.

[0004] However, existing asphalt mixture recycling equipment has some problems in practical use. For example, the crushing effect is not ideal; large asphalt pavement still contains large particles after crushing, which leads to uneven heating of the asphalt during subsequent heating and affects the asphalt's heat-melting efficiency. The separation effect is also poor; asphalt and aggregate are not easily separated during the separation process, resulting in a large amount of aggregate mixed in the recycled asphalt, which reduces the quality of the recycled asphalt. Therefore, a road asphalt mixture recycling equipment is needed to solve the above-mentioned problems. Utility Model Content

[0005] In view of this, in order to solve the problem that the existing methods of separating asphalt and stone have poor crushing and separation effects, which reduce the quality of asphalt recycling, this utility model provides a road asphalt mixture recycling processing device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A road asphalt mixture recycling processing device includes a base frame, a housing fixedly installed on the top of the base frame, an assembly pipe fixedly installed at the top opening of the housing, the top end of the assembly pipe extending above the housing and fixedly installed with a tapered pipe II, a barrier pipe fixedly installed inside the housing, and a separation mechanism installed inside the barrier pipe. The separation mechanism is used to separate asphalt from aggregate. The processing device also includes:

[0008] The crushing mechanism is installed inside the conical tube II. One side of the crushing mechanism extends to the outside of the conical tube II and is connected to one side of the conical tube II. The crushing mechanism is used to pre-crush the recycled asphalt pavement so that the asphalt and stone can be separated in the future. The top of the separation mechanism extends into the conical tube II and is connected to the crushing mechanism.

[0009] Furthermore, the separation mechanism includes a conical tube I fixedly installed inside the barrier tube, a separation screen tube fixedly installed at the bottom end of the conical tube I, the separation screen tube being used to filter and separate asphalt and stone, a centrifugal assembly installed inside the assembly tube, the top end of the centrifugal assembly being connected to the bottom of the crushing mechanism, the bottom of the centrifugal assembly extending into the separation screen tube, and the centrifugal assembly contacting the inner wall of the separation screen tube.

[0010] Beneficial effects: The separation screen allows the pulverized asphalt pavement to fall into the screen. At this time, the centrifugal component rotates after receiving power from the pulverizing mechanism, which centrifuges the pulverized asphalt pavement. This allows the asphalt to be heated to the point of melting and then separated from the stone. The molten asphalt can pass through the separation screen and be separated from the stone, thus facilitating the recycling of asphalt.

[0011] Furthermore, the centrifugal assembly includes a support frame fixedly installed inside the assembly tube, a rotating shaft rotatably connected through the support frame, the top end of the rotating shaft being connected to the bottom of the crushing mechanism, the bottom end of the rotating shaft extending into the separation screen tube, and a separation bracket located inside the separation screen tube being fixedly mounted on the rotating shaft, with the outer side of the separation bracket contacting the inner wall of the separation screen tube.

[0012] Beneficial effects: When the rotating shaft moves with the crushing mechanism, it can drive the separation support to rotate. At this time, after the asphalt is melted, it can make the asphalt have centrifugal force. Therefore, the melted asphalt can be separated from the stone through the separation screen tube, which makes it convenient to recycle the asphalt.

[0013] Furthermore, two assembly rings are symmetrically fixedly installed inside the housing. The barrier tubes pass through the two assembly rings and are fixedly connected to the inner walls of the two assembly rings respectively. Multiple electric heating rods are arranged at equal intervals between the two assembly rings, and the top and bottom ends of the electric heating rods are fixedly connected to the sides of the two assembly rings that are close to each other.

[0014] Beneficial effects: The two assembly rings can assist in the installation of the barrier tube and multiple electric heating rods. After the multiple electric heating rods are powered on, they will generate heat, which can pass through the barrier tube to heat the asphalt to a melting state, thus facilitating its separation from the stone.

[0015] Furthermore, a support ring is fixedly fitted on the housing, and two electric telescopic push rods are symmetrically fixedly installed on the top of the support ring. The output shafts of the two electric telescopic push rods extend into the range of the barrier tube and are fixedly installed with the same scraper ring, which is in contact with the inner wall of the barrier tube.

[0016] Beneficial effect: After the asphalt passes through the separating screen tube, its centrifugal force will not disappear immediately. Some of it will adhere to the inner wall of the barrier tube. At this time, by activating two electric telescopic push rods, the scraper ring is driven to move longitudinally along the inner wall of the barrier tube, thereby scraping off the asphalt adhering to the inner wall of the barrier tube.

[0017] Furthermore, a docking collar is fixedly installed through the bottom inner wall of the shell box, and a sealing plate is threadedly connected to the docking collar. The bottom of the sealing plate extends to the bottom of the docking collar. A stop ring is also fixedly installed on the bottom inner wall of the shell box. The stop ring is fixedly connected to the top of the docking collar, and the bottom end of the separating screen tube extends into the stop ring and is fixedly connected to the inner wall of the stop ring.

[0018] Beneficial effects: The stop ring can block the asphalt that is separated into the barrier pipe, and the sealing plate can seal the asphalt pavement that needs to be separated. After centrifugal separation is completed, the separated stone can be taken out by opening the connecting sleeve.

[0019] Furthermore, an annular protective cover is tightly fixed on the docking collar. An oleophobic layer is provided on the inner wall of the bottom slope of the protective cover and the inner wall of the annular protective cover. Multiple discharge through holes are equally spaced on the bottom inner wall of the housing. The top of the annular protective cover is fixedly connected to the bottom of the housing. The multiple discharge through holes are all connected to the annular protective cover. An asphalt pump is fixedly installed on the base frame. A conveying conduit is fixedly installed on the inlet of the asphalt pump. The top end of the conveying conduit extends into the annular protective cover and is fixedly connected to the inner wall of the bottom side of the annular protective cover.

[0020] Beneficial effects: The separated asphalt can fall onto the bottom inner wall of the shell box. The bottom of the shell box is equipped with a corresponding oleophobic layer, which can maintain the asphalt's good fluidity on the bottom inner wall of the shell box. This allows the asphalt to flow into the annular shroud through multiple discharge holes. Then, by starting the asphalt pump, suction is generated, which can draw out the asphalt that has fallen into the annular shroud through the conveying pipe, thereby enabling the timely output of the separated molten asphalt.

[0021] Furthermore, the crushing mechanism includes a conical grinding disc fixedly installed at the top of the rotating shaft. The conical grinding disc is located inside the conical tube II and cooperates with the inner wall of the conical tube II, enabling it to crush the recycled asphalt pavement. An assembly base plate is fixedly mounted on the conical tube II. A drive motor is fixedly mounted on one side of the bottom of the assembly base plate. The output shaft of the drive motor extends to the top of the assembly base plate. An assembly shaft is fixedly mounted at the center of the top of the conical grinding disc. Synchronous pulleys are fixedly mounted on both the assembly shaft and the output shaft of the drive motor. The same synchronous transmission belt is driven by the two synchronous pulleys.

[0022] Beneficial effects: After the large pieces of asphalt pavement to be crushed are put into the conical tube II, the drive motor is started. At this time, the conical grinding disc is driven to rotate through the transmission of two synchronous pulleys and synchronous transmission belt. Since the conical grinding disc cooperates with the inner wall of the conical tube II, the large pieces of asphalt pavement can be rotated and crushed into small pieces. After crushing, they can fall into the separation screen tube through the assembly pipe and the conical tube I. Thus, when heating the asphalt on the road surface, the heating area of ​​the asphalt can be increased, and the hot melting efficiency of the asphalt can be improved.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. The road asphalt mixture recycling processing device disclosed in this utility model has a separation screen tube in the separation mechanism. After the crushed asphalt pavement falls into the separation screen tube, the centrifugal component rotates after receiving power from the crushing mechanism. This centrifugal motion can be performed on the crushed asphalt pavement, so that the asphalt can be separated from the stone after being heated to the point of melting. The melted asphalt can pass through the separation screen tube and separate from the stone, thus facilitating the recycling of asphalt.

[0025] 2. The road asphalt mixture recycling processing device disclosed in this utility model allows large blocks of asphalt pavement to be crushed to be placed into the conical tube II. By starting the drive motor, the conical grinding disc can be rotated through two synchronous pulleys and a synchronous transmission belt. Since the conical grinding disc cooperates with the inner wall of the conical tube II, it can rotate and crush the large blocks of asphalt pavement into small particles. After crushing, the particles fall into the separation screen tube through the assembly pipe and the conical tube I. This increases the heating area of ​​the asphalt and improves the hot melting efficiency of the asphalt when it is heated.

[0026] 3. The road asphalt mixture recycling processing device disclosed in this utility model effectively crushes the asphalt pavement through a conical grinding disc, improving the hot melting efficiency; it uses a centrifugal component to efficiently separate the molten asphalt from the aggregate, improving the recycling quality; the scraper ring can prevent asphalt from adhering to the inner wall; the asphalt pump can output molten asphalt in a timely manner; and the protective cover can ensure operational safety, solving the problems of poor crushing and separation effects and resource waste in existing devices.

[0027] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of the road asphalt mixture recycling and processing device of this utility model. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the structure of the road asphalt mixture recycling and processing device of this utility model. Figure 2 ;

[0031] Figure 3 This utility model Figure 2 A three-dimensional schematic diagram of the connection structure between the central drive motor and the conical grinding disc;

[0032] Figure 4 This is a front-view schematic diagram of the internal structure of the road asphalt mixture recycling and processing device of this utility model;

[0033] Figure 5 This is a side view schematic diagram of the internal mechanism of the road asphalt mixture recycling and processing device of this utility model;

[0034] Figure 6 This is a schematic diagram of the connection structure of the drive motor, conical grinding disc, rotating shaft and separation bracket in this utility model;

[0035] Figure 7 This is a schematic diagram of the connection structure between the conical tube I and the separating screen tube in this utility model.

[0036] Reference numerals: 1. Base frame; 2. Shell box; 3. Assembly ring; 4. Barrier tube; 5. Electric heating rod; 6. Conical tube I; 7. Separating screen tube; 8. Stop ring; 9. Connecting collar; 10. Sealing plate; 11. Discharge through hole; 12. Annular protective cover; 13. Conveying conduit; 14. Assembly tube; 15. Conical tube II; 16. Support frame; 17. Rotating shaft; 18. Separating bracket; 19. Conical grinding disc; 20. Assembly base plate; 21. Drive motor; 22. Assembly shaft; 23. Synchronous pulley; 24. Synchronous transmission belt; 25. Protective cover; 26. Injection conduit; 27. Support ring sleeve; 28. Electric telescopic push rod; 29. ​​Scraper ring; 30. Asphalt pump. Detailed Implementation

[0037] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0038] like Figures 1-3 The road asphalt mixture recycling processing device shown has an overall structure supported by a base frame 1. A housing 2 is fixedly installed on the top of the base frame 1. An assembly pipe 14 is fixedly installed at the top opening of the housing 2. The top end of the assembly pipe 14 extends above the housing 2 and is fixedly installed with a tapered pipe II 15. A barrier pipe 4 is fixedly installed inside the housing 2. A separation mechanism for separating asphalt from aggregate is installed inside the barrier pipe 4. A crushing mechanism is installed inside the tapered pipe II 15. One side of the crushing mechanism extends to the outside of the tapered pipe II 15 and connects to one side of the tapered pipe II 15. The top end of the separation mechanism extends into the tapered pipe II 15 and connects to the crushing mechanism. The crushing mechanism can pre-crush the recycled asphalt pavement for subsequent separation operations.

[0039] like Figure 4 , 5 The separation mechanism shown includes a conical tube I6 fixedly installed inside the barrier tube 4, and a separation screen tube 7 (e.g., ...) fixedly installed at the bottom end of the conical tube I6. Figure 7As shown, the separation screen tube 7 is used to filter and separate asphalt and aggregate. A centrifugal assembly is installed inside the assembly tube 14. The top of the centrifugal assembly is connected to the bottom of the crushing mechanism, and the bottom of the centrifugal assembly extends into the separation screen tube 7, contacting the inner wall of the separation screen tube 7. When the crushed asphalt pavement falls into the separation screen tube 7, the centrifugal assembly rotates after receiving power from the crushing mechanism, centrifuging the crushed asphalt pavement. After the asphalt is heated to melting, it can separate from the aggregate. The molten asphalt can pass through the separation screen tube 7 to achieve separation from the aggregate, facilitating asphalt recycling.

[0040] The centrifugal assembly includes a support frame 16 fixedly installed inside the assembly tube 14. A rotating shaft 17 is rotatably connected through the support frame 16. The top end of the rotating shaft 17 is connected to the bottom of the crushing mechanism, and the bottom end of the rotating shaft 17 extends into the separation screen tube 7. Multiple sets of separation brackets 18 (such as...) located inside the separation screen tube 7 are fixedly fitted onto the rotating shaft 17. Figure 6 As shown, the outer side of the separating support 18 is in contact with the inner wall of the separating screen tube 7. When the rotating shaft 17 moves with the crushing mechanism, it will drive the separating support 18 to rotate. At this time, after the asphalt melts, it can make the asphalt have centrifugal force, so that the melted asphalt can be separated from the stone through the separating screen tube 7, which is convenient for the asphalt to be recycled.

[0041] Two assembly rings 3 are symmetrically fixedly installed inside the housing 2. A barrier tube 4 passes through each of the two assembly rings 3 and is fixedly connected to the inner wall of each ring 3. Multiple electric heating rods 5 are evenly spaced between the two assembly rings 3, with their top and bottom ends fixedly connected to the adjacent sides of the two assembly rings 3. The two assembly rings 3 assist in the installation of the barrier tubes 4 and the multiple electric heating rods 5. The electric heating rods 5 are connected to an external power source. When the multiple electric heating rods 5 are energized, they generate heat, which passes through the barrier tubes 4 to heat the asphalt to a molten state, facilitating its separation from the aggregate.

[0042] A support ring sleeve 27 is fixedly fitted onto the housing 2. Two electric telescopic push rods 28 are symmetrically fixedly installed on the top of the support ring sleeve 27. The output shafts of both electric telescopic push rods 28 extend into the range of the barrier tube 4 and are fixedly installed with the same scraper ring 29, which is in contact with the inner wall of the barrier tube 4. After the asphalt passes through the separating screen tube 7, its centrifugal force does not immediately disappear, and some of it will adhere to the inner wall of the barrier tube 4. At this time, by activating the two electric telescopic push rods 28, the scraper ring 29 is driven to move longitudinally along the inner wall of the barrier tube 4, which can scrape off the asphalt adhering to the inner wall of the barrier tube 4.

[0043] A connecting ring 9 is fixedly installed through the bottom inner wall of the shell box 2. A sealing plate 10 is threadedly connected to the connecting ring 9, and the bottom of the sealing plate 10 extends to the bottom of the connecting ring 9. A stop ring 8 is also fixedly installed on the bottom inner wall of the shell box 2. The stop ring 8 is fixedly connected to the top of the connecting ring 9, and a gap is left between the stop ring 8 and the bottom inner wall of the shell box 2 to facilitate the flow of molten asphalt along the discharge hole 11. The bottom end of the separating screen tube 7 extends into the stop ring 8 and is fixedly connected to the inner wall of the stop ring 8. The stop ring 8 can block the asphalt separated into the barrier tube 4, and the sealing plate 10 can seal the asphalt pavement that needs to be separated. After centrifugal separation, the sealing plate 10 is rotated to remove it from the connecting ring 9 (the sealing plate 10 and the connecting ring 9 are threadedly connected), so that the connecting ring 9 is in a conductive state, and the separated stone can be taken out.

[0044] An annular cover 12 is tightly fixed on the docking collar 9. An oil-repellent layer is provided on the inner wall of the bottom slope of the protective cover 25 and the inner wall of the annular cover 12. Multiple discharge through holes 11 are evenly spaced on the bottom inner wall of the housing box 2. The top of the annular cover 12 is fixedly connected to the bottom of the housing box 2. The multiple discharge through holes 11 are all connected to the annular cover 12. An asphalt pump 30 is fixedly installed on the base frame 1. A conveying conduit 13 is fixedly installed on the inlet of the asphalt pump 30. The top end of the conveying conduit 13 extends into the annular cover 12 and is fixedly connected to the inner wall of the bottom side of the annular cover 12. The separated asphalt can fall onto the bottom inner wall of the shell box 2. The bottom of the shell box 2 is provided with a corresponding oleophobic layer, which can maintain good fluidity of the asphalt on the bottom inner wall of the shell box 2, so that the asphalt can flow into the annular cover 12 through multiple discharge holes 11. Then, by starting the asphalt pump 30 to generate suction, the asphalt falling into the annular cover 12 can be sucked out through the conveying pipe 13, thereby timely outputting the separated molten asphalt.

[0045] The crushing mechanism includes a conical grinding disc 19 fixedly mounted on the top of a rotating shaft 17. The conical grinding disc 19 is located inside a conical tube II 15 and cooperates with the inner wall of the conical tube II 15, enabling it to crush recycled asphalt pavement. An assembly base plate 20 is fixedly mounted on the conical tube II 15. A drive motor 21 is fixedly mounted on one side of the bottom of the assembly base plate 20. The output shaft of the drive motor 21 extends above the assembly base plate 20. An assembly shaft 22 is fixedly mounted at the center of the top of the conical grinding disc 19. Synchronous pulleys 23 are fixedly mounted on both the assembly shaft 22 and the output shaft of the drive motor 21. The same synchronous transmission belt 24 is driven by the two synchronous pulleys 23. After the large pieces of asphalt pavement to be crushed are placed into the conical tube II 15, the drive motor 21 is started. At this time, the conical grinding disc 19 is driven to rotate through the transmission of the two synchronous pulleys 23 and the synchronous transmission belt 24. Since the conical grinding disc 19 cooperates with the inner wall of the conical tube II 15, it can rotate and crush the large pieces of asphalt pavement into small pieces. After crushing, they can fall into the separation screen tube 7 through the assembly pipe 14 and the conical tube I 6. Thus, when heating the asphalt on the road surface, the heating area of ​​the asphalt can be increased, and the hot melting efficiency of the asphalt can be improved.

[0046] A protective cover 25 is fixedly installed on the top of the assembly base plate 20. An injection conduit 26 is fixedly installed through the inner wall of the top of the protective cover 25, which can easily deliver large pieces of asphalt pavement into the conical tube II 15. The top of the assembly shaft 22 is rotatably connected to the inner wall of the top of the protective cover 25. The protective cover 25 can protect the conical grinding disc 19, the two synchronous pulleys 23, and the synchronous transmission belt 24, thereby preventing workers from directly contacting the conical grinding disc 19, the synchronous pulleys 23, and the synchronous transmission belt 24 when recycling asphalt pavement, thus achieving a protective effect.

[0047] To ensure the proper functioning of the device, the material of the barrier tube 4 should have good thermal conductivity to efficiently transfer heat from the electric heating rod 5 to the inside of the device. The melting temperature of asphalt is usually between 140°C and 180°C, and the surface temperature of the electric heating rod may be even higher. Therefore, the barrier tube should be able to work stably in an environment above 200°C for a long time, and the material of the barrier tube 4 should be heat resistant. At the same time, considering that the asphalt may contain a small amount of corrosive components, the material of the barrier tube 4 also needs to be corrosion resistant. In this embodiment, the material of the barrier tube 4 is stainless steel 304.

[0048] Similarly, the separation support 18 and the separation screen tube 7 are made of high-carbon manganese steel (such as 65Mn), which is wear-resistant and high-temperature resistant. The surface of the conical grinding disc 19 can be welded with a tungsten carbide wear-resistant layer, which has extremely high wear resistance. The scraper ring 29 is made of polytetrafluoroethylene (PTFE) material, which has high-temperature resistance and non-stick properties.

[0049] When the road asphalt mixture recycling processing device is used, the large blocks of asphalt pavement to be recycled are put into the conical tube II 15 through the injection pipe 26. At this time, the drive motor 21 is started, and the output shaft of the drive motor 21 rotates, which drives the synchronous pulley 23 fixedly mounted on it to rotate. Since the synchronous pulley 23 is connected to the synchronous pulley 23 fixedly mounted on the assembly shaft 22 through the synchronous transmission belt 24, it will drive the assembly shaft 22 to rotate, which in turn causes the conical grinding disc 19 fixedly mounted on the top of the rotating shaft 17 to rotate. Since the conical grinding disc 19 is located inside the conical tube II 15 and cooperates with the inner wall of the conical tube II 15, it can rotate and crush the large blocks of asphalt pavement into small blocks of particles. The crushed small blocks of asphalt pavement fall into the separation screen tube 7 through the assembly pipe 14 and the conical tube I 6 fixedly mounted in the barrier pipe 4.

[0050] Meanwhile, multiple electric heating rods 5 are energized to generate heat. The heat passes through the barrier tube 4 to heat the asphalt and stone mixture that falls into the separation screen tube 7, causing the asphalt to melt. Since the top of the rotating shaft 17 is connected to the bottom of the conical grinding disc 19 in the crushing mechanism, the rotating shaft 17 will rotate when the conical grinding disc 19 rotates. A separation bracket 18 located inside the separation screen tube 7 is fixedly mounted on the rotating shaft 17. The outer side of the separation bracket 18 is in contact with the inner wall of the separation screen tube 7. The rotation of the rotating shaft 17 drives the separation bracket 18 to rotate, causing centrifugal motion on the crushed asphalt pavement. At this time, the melted asphalt has centrifugal force and can pass through the separation screen tube 7 to separate from the stone, while the stone remains inside the separation screen tube 7.

[0051] The stop ring 8 installed on the bottom inner wall of the housing 2 can block the asphalt that has separated into the barrier pipe 4. The separated asphalt falls on the bottom inner wall of the housing 2. Because the bottom of the housing 2 is provided with a corresponding oleophobic layer, the asphalt can maintain good fluidity on the bottom inner wall of the housing 2. The asphalt flows through multiple discharge holes 11 that are equally spaced on the bottom inner wall of the housing 2 into the annular protective cover 12 that is connected to the discharge holes 11 and whose top is fixedly connected to the bottom of the housing 2. Then, the asphalt pump 30 fixedly installed on the base frame 1 is started. The inlet of the asphalt pump 30 generates suction through the conveying pipe 13, which sucks out the asphalt that has fallen into the annular protective cover 12 through the conveying pipe 13, so as to realize the timely output of the separated molten asphalt.

[0052] After passing through the separating screen 7, the centrifugal force of the asphalt does not immediately disappear; some of it adheres to the inner wall of the barrier tube 4. At this point, two electric telescopic push rods 28 are activated. The output shafts of the two electric telescopic push rods 28 drive a scraper ring 29, which is in contact with the inner wall of the barrier tube 4, to move longitudinally along the inner wall of the barrier tube 4, scraping off the asphalt adhering to the inner wall of the barrier tube 4. After centrifugal separation is completed, the separated stone can be removed by opening the sealing plate 10, which is threadedly connected to the mating collar 9 fixedly installed through the top inner wall of the housing 2. Furthermore, the protective cover 25 fixedly installed on the top of the mounting base 20 can protect the conical grinding disc 19, the two synchronous pulleys 23, and the synchronous transmission belt 24, preventing workers from directly contacting these components, thus achieving a protective effect.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A road asphalt mixture recycling processing device, comprising a housing (2) and an assembly pipe (14) that penetrates and is fixedly connected to the housing (2), characterized in that, A conical tube II (15) with a built-in crushing mechanism is fixedly installed at the top of the assembly tube (14). A barrier tube (4) is fixedly installed inside the housing box (2). A separation mechanism is installed inside the barrier tube (4). The separation mechanism includes a conical tube I (6) fixedly installed inside the barrier tube (4). A separation screen tube (7) is fixedly installed at the bottom of the conical tube I (6). A centrifugal assembly is installed inside the assembly tube (14). The top of the centrifugal assembly is connected to the bottom of the crushing mechanism. The bottom of the centrifugal assembly extends into the separation screen tube (7). The crushing mechanism includes a conical grinding disc (19) fixedly installed at the top of the rotating shaft (17). The conical grinding disc (19) is located inside the conical tube II (15) and cooperates with the inner wall of the conical tube II (15).

2. The road asphalt mixture recycling and processing device as described in claim 1, characterized in that, The centrifugal assembly is in contact with the inner wall of the separation sieve tube (7), including a support frame (16) fixedly installed in the assembly tube (14), a rotating shaft (17) is rotatably connected through the support frame (16), the top end of the rotating shaft (17) is connected to the bottom of the conical grinding disc (19), the bottom end of the rotating shaft (17) extends into the separation sieve tube (7), and a separation bracket (18) located in the separation sieve tube (7) is fixedly fitted on the rotating shaft (17), and the outer side of the separation bracket (18) is in contact with the inner wall of the separation sieve tube (7).

3. The road asphalt mixture recycling and processing device as described in claim 1, characterized in that, Two assembly rings (3) are symmetrically fixedly installed inside the housing (2). The barrier tube (4) passes through the two assembly rings (3) respectively and is fixedly connected to the inner wall of the two assembly rings (3). Multiple electric heating rods (5) are arranged at equal intervals between the two assembly rings (3). The top and bottom of the electric heating rods (5) are fixedly connected to the side of the two assembly rings (3) that are close to each other.

4. The road asphalt mixture recycling and processing device as described in claim 1, characterized in that, The housing (2) is fixedly fitted with a support ring sleeve (27). Two electric telescopic push rods (28) are symmetrically fixedly installed on the top of the support ring sleeve (27). The output shafts of the two electric telescopic push rods (28) extend into the barrier tube (4) and are fixedly installed with the same scraper ring (29). The scraper ring (29) is in contact with the inner wall of the barrier tube (4).

5. The road asphalt mixture recycling and processing device as described in claim 2, characterized in that, A docking collar (9) is fixedly installed through the bottom inner wall of the housing (2). A sealing plate (10) is threadedly connected to the docking collar (9). The bottom of the sealing plate (10) extends to the bottom of the docking collar (9). A stop ring (8) is fixedly installed on the bottom inner wall of the housing (2). The stop ring (8) is fixedly connected to the top of the docking collar (9). The bottom end of the separating screen tube (7) extends into the stop ring (8) and is fixedly connected to the inner wall of the stop ring (8).

6. The road asphalt mixture recycling and processing apparatus as described in claim 5, characterized in that, The annular cover (12) is tightly fixed on the docking collar (9). Multiple discharge holes (11) are evenly spaced on the inner wall of the bottom of the housing (2). The top of the annular cover (12) is fixedly connected to the bottom of the housing (2). All discharge holes (11) are connected to the annular cover (12). An asphalt pump (30) is fixedly installed on the base frame (1). A conveying conduit (13) is fixedly installed on the inlet of the asphalt pump (30). The top of the conveying conduit (13) extends into the annular cover (12) and is fixedly connected to the inner wall of one side of the bottom of the annular cover (12).

7. The road asphalt mixture recycling and processing apparatus as described in claim 1, characterized in that, An assembly base plate (20) is fixedly mounted on the tapered tube II (15). A drive motor (21) is fixedly mounted on one side of the bottom of the assembly base plate (20). The output shaft of the drive motor (21) extends to the top of the assembly base plate (20). An assembly shaft (22) is fixedly mounted at the center of the top of the tapered grinding disc (19). Synchronous pulleys (23) are fixedly mounted on both the assembly shaft (22) and the output shaft of the drive motor (21). The same synchronous transmission belt (24) is mounted on the two synchronous pulleys (23).

8. The road asphalt mixture recycling and processing apparatus as described in claim 1, characterized in that, The bottom of the housing (2) is provided with a base frame (1) for supporting the housing (2).

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