Asphalt plant mixing hot regeneration drying roller

Abstract

The utility model relates to the technical field of regeneration drying rollers, in particular to an asphalt plant mixing hot regeneration drying roller which comprises a drying roller body, a mixing and stirring mechanism, a first scraping cleaning rod, a discharging mechanism and a second scraping cleaning rod. A mixing and stirring mechanism and a first scraping and cleaning rod are arranged in the drying roller body, so that insufficient stirring caused by adhesion of the asphalt to the inner wall can be avoided while sufficient stirring of the asphalt is realized, heat is isolated, and the heating time is prolonged; and meanwhile, a discharging mechanism and a second scraping cleaning rod are arranged at a discharging opening, auxiliary discharging is achieved through the discharging mechanism when asphalt is collected, the discharging efficiency is improved while asphalt accumulation is avoided, the asphalt collecting difficulty is reduced, and the actual work requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of regeneration drying drums, in particular to a hot-mix regeneration drying drum for an asphalt plant. Background Art

[0002] Asphalt plant hot recycling is to dig up or mill the old asphalt concrete pavement surface layer, recycle it and concentrate it in the mixing yard, carry out pre-treatment such as crushing and screening as needed, and then add a certain proportion of new aggregate, new asphalt, regeneration agent, etc., and heat and mix it with special recycled asphalt concrete mixing equipment. After that, it is transported to the construction site and paved to form a new asphalt concrete pavement structure layer with certain road performance.

[0003] At present, asphalt plants usually choose to regenerate the old asphalt concrete by heating it in a drying drum after planing and milling. For example, the Chinese utility model patent with application number 202021792170.5 provides an old asphalt recycling mixer, which melts the asphalt by setting an electric heating pipe and fully mixes the asphalt and the regeneration agent by setting stirring blades in the inner tank to achieve asphalt recovery.

[0004] However, when collecting asphalt using the existing method, there is a problem that asphalt accumulates at the discharge port and cannot be discharged in time, which reduces the asphalt collection efficiency. In addition, when asphalt is recovered, asphalt easily adheres to the inner wall of the discharge port, further increasing the difficulty of asphalt collection, and therefore cannot meet actual production needs. Utility Model Content

[0005] The utility model aims to provide a hot-mix regeneration drying drum for an asphalt plant to solve the technical problem that the asphalt is difficult to collect.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An asphalt plant hot regeneration drying drum comprises a drying drum body, a mixing and stirring mechanism, a first scraping and cleaning rod, a discharge mechanism and a second scraping and cleaning rod;

[0008] A discharge port is provided at the bottom of the drying drum body, the mixing and stirring mechanism is coaxially connected to the drying drum body, the mixing and stirring mechanism is connected to the first scraper cleaning rod and both are arranged inside the drying drum body, and the first scraper cleaning rod is in contact with the inner wall of the drying drum body;

[0009] The discharging mechanism is connected to the mixing and stirring mechanism, the second scraper and cleaning rod is connected to the discharging mechanism, the second scraper and cleaning rod and the discharging mechanism are both arranged inside the discharging port, and the second scraper and cleaning rod contacts the inner wall of the discharging port.

[0010] It is further defined that the mixing and stirring mechanism includes a stirring drive and a stirring shaft blade, the stirring drive is connected to the top inside the drying drum body, the stirring shaft blade is connected to the output end of the stirring drive, the first scraper cleaning rod is connected to the stirring shaft blade through a first connecting rod, and the first scraper cleaning rod is located on the outside of the stirring shaft blade; the discharge mechanism is connected to the bottom end of the stirring shaft blade.

[0011] It is further defined that the stirring drive is connected to the drying drum body through a connecting frame.

[0012] It is further defined that the outer side of the drying drum body is sleeved with a protective steel plate and a rubber outer layer, and the rubber outer layer is sleeved on the outer side of the protective steel plate.

[0013] It is further defined that a temperature insulation plate is provided between the inner wall of the drying drum body and the outer wall of the drying drum body.

[0014] It is further defined that a photovoltaic panel and a battery electrically connected to the photovoltaic panel are disposed on the top of the drying drum body, and the battery is electrically connected to the stirring drive.

[0015] It is further defined that the photovoltaic panel is detachably connected to the drying drum body.

[0016] It is further defined that fixed slots are provided on opposite sides of the photovoltaic panel, and two fixed plug-ins are provided on the outer side of the photovoltaic panel, one end of the fixed plug-in cooperates with the corresponding fixed slot, and the other end of the fixed plug-in is elastically connected to the drying drum body, and a toggle rod is provided on the fixed plug-in.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. By arranging a mixing and stirring mechanism and a first scraper and cleaning rod inside the drying drum body, the asphalt can be fully stirred while avoiding the asphalt adhering to the inner wall, resulting in insufficient stirring and isolating heat, thereby increasing the heating time. At the same time, by arranging a discharge mechanism and a second scraper and cleaning rod at the discharge port, the asphalt can be assisted in discharge through the discharge mechanism during collection, thereby avoiding asphalt accumulation and improving discharge efficiency, reducing the difficulty of asphalt collection, and meeting actual work needs.

[0019] 2. The utility model can convert solar energy into electrical energy and store it in a battery by setting up a photovoltaic panel, thereby realizing energy storage and power supply, and promoting environmental protection; the plug-in state of the fixed plug-in and the fixed slot can be controlled by a toggle rod, which is convenient for fixing the photovoltaic panel and facilitating the subsequent removal and replacement of the photovoltaic panel.

[0020] 3. The utility model uses a thermal insulation plate to protect and isolate the temperature of the drying drum body, thereby reducing heat loss; a protective steel plate is used to provide rigid support and protection for the drying drum body; the rubber outer layer prevents the drying drum body from direct contact with the outside world, plays an isolating and protective role, and improves the overall protection of the drying drum body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0022] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0023] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0024] Figure 4 It is a schematic diagram of the top view of the structure of the drying drum body, the insulation plate, the protective steel plate and the rubber outer layer connected to the utility model;

[0025] Figure 5 This is a front view structural diagram of the connection between the drying drum body and the rubber outer layer of the utility model;

[0026] In the figure: 1. Drying drum body; 2. Insulation plate; 3. Protective steel plate; 4. Rubber outer layer; 5. Pressure cover; 6. Photovoltaic panel; 7. Battery; 8. Connecting frame; 9. Stirring drive; 10. Stirring shaft blade; 11. First connecting rod; 12. First scraper cleaning rod; 13. Discharge port; 14. Discharge mechanism; 15. Movable groove; 16. Limiting block; 1601. Toggle rod; 1602. Fixed plug-in; 17. Spring; 18. Sliding rod; 19. Fixed slot; 20. Second connecting rod; 21. Second scraper cleaning rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5The utility model provides an asphalt plant-mixed hot regeneration drying drum, comprising a drying drum body 1, a mixing and stirring mechanism, a first scraper cleaning rod 12, a discharge mechanism 14 and a second scraper cleaning rod 21; the drying drum body 1 is used to provide a heating environment to melt and recycle asphalt, a pressure cover 5 is provided on the top of the drying drum body 1, which is convenient for cleaning and maintenance of the inside of the drying drum body 1, and a feed port is provided on the pressure cover 5 for convenient feeding, and a discharge port 13 is provided at the bottom of the drying drum body 1 for discharging the melted asphalt.

[0029] Among them, the mixing and stirring mechanism is arranged inside the drying drum body 1, and the mixing and stirring mechanism is connected to the bottom of the pressure cover 5, so that the mixing and stirring mechanism and the drying drum body 1 are coaxially arranged, and the first scraper cleaning rod 12 is connected to the mixing and stirring mechanism. The first scraper cleaning rod 12 is located on the outside of the mixing and stirring mechanism. The first scraper cleaning rod 12 contacts the inner wall of the drying drum body 1 and is used to scrape off the asphalt adhered to the inner wall of the drying drum body 1 when the mixing and stirring mechanism is stirring to avoid sticking to the wall.

[0030] The discharge mechanism 14 is connected to the mixing mechanism, and the discharge mechanism 14 is coaxially arranged with the discharge port 13. The second scraper cleaning rod 21 is arranged on the outside of the discharge mechanism 14. The second scraper cleaning rod 21 contacts the inner wall of the discharge port 13, and is used to scrape off the asphalt adhered to the inner wall of the discharge port 13 to avoid blockage and ensure the discharge efficiency.

[0031] Further description, the mixing and stirring mechanism includes a stirring drive 9 and a stirring shaft blade 10. The fixed end of the stirring drive 9 is connected to the bottom of the pressure cover 5 through a connecting frame 8, and the output end of the stirring drive 9 is connected to the stirring shaft blade 10. The stirring shaft blade 10 is vertically arranged inside the drying drum body 1, and is used to stir the incoming material so that it is heated evenly and the melting efficiency is improved.

[0032] The top of the discharge mechanism 14 is connected to the bottom of the stirring shaft blade 10. The discharge mechanism 14 can assist in discharging the asphalt, thereby improving the collection efficiency of the asphalt, avoiding blockage, and reducing the difficulty of collection.

[0033] The first scraper cleaning rod 12 is connected to the stirring shaft blade 10 through the first connecting rod 11, and the number of the first scraper cleaning rod 12 is at least one. When the number of the first scraper cleaning rod 12 is two or more, the first scraper cleaning rod 12 is arranged at equal intervals around the axis of the stirring shaft blade 10; similarly, the second scraper cleaning rod 21 is connected to the discharge mechanism 14 through the second connecting rod 20, and the number of the second scraper cleaning rod 21 is at least one. When the number of the second scraper cleaning rod 21 is two or more, the second scraper cleaning rod 21 is arranged at equal intervals around the axis of the discharge mechanism 14.

[0034] Further explanation, in order to improve the reliability of the drying drum body 1, a protective steel plate 3 and a rubber outer layer 4 are selected to be sequentially sleeved on the outside of the drying drum body 1 from the inside to the outside; in order to reduce the heat exchange between the drying drum body 1 and the outside, an insulation board 2 is selected to be embedded in the drying drum body 1, and at this time, the insulation board 2 is located between the inner wall of the drying drum body 1 and the outer wall of the drying drum body 1.

[0035] In order to reduce electricity cost, a photovoltaic panel 6 and a battery 7 electrically connected to the photovoltaic panel 6 are provided on the pressure cover 5 . The battery 7 is electrically connected to the stirring drive 9 to supply power to the stirring drive 9 .

[0036] A photovoltaic placement groove is provided on the pressure cover 5, and the photovoltaic panel 6 is optionally installed in the photovoltaic placement groove. The battery 7 is located below the photovoltaic panel 6, and the battery 7 can also be selectively placed in the photovoltaic placement groove.

[0037] In order to facilitate the disassembly and assembly of the photovoltaic panel 6, the photovoltaic panel 6 and the pressure cover 5 are selected to be disassembled and connected. At this time, fixed slots 19 are preset on the left and right sides of the photovoltaic panel 6, and a movable slot 15 is opened on the pressure cover 5. The number of movable slots 15 is two, and the two movable slots 15 are arranged one by one opposite to the corresponding fixed slots 19. A limit block 16 and a slide bar 18 are arranged in the movable slot 15. The slide bar 18 is arranged horizontally, and the limit block 16 is slidably connected to the slide bar 18. One end of the limit block 16 is connected to one end of the movable slot 15 through a spring 17, and the other end of the limit block 16 is connected to a fixed plug-in 1602. The fixed plug-in 1602 passes through the movable slot 15 and cooperates with the corresponding fixed slot 19. The top of the limit block 16 is connected to a toggle rod 1601, and the top of the toggle rod 1601 extends to the top of the movable slot 15.

[0038] Working process:

[0039] The stirring drive 9 drives the stirring shaft blade 10 and the discharge mechanism 14 to rotate. In cooperation with the first scraper cleaning rod 12 and the second scraper cleaning rod 21, the asphalt adhered to the inner wall of the drying drum body 1 and the discharge port 13 can be effectively scraped off to avoid unnecessary residual effects, unnecessary pollution and waste. The setting of the discharge mechanism 14 can guide the asphalt material passing through the discharge port 13.

[0040] The photovoltaic panel 6 can convert solar energy into electrical energy and store it in the storage battery 7, thereby realizing energy storage and power supply and reducing electricity costs.

[0041] When the photovoltaic panel 6 is disassembled, assembled, or replaced, the limit block 16 can be controlled to move in the movable groove 15 by using the toggle rod 1601, thereby changing the plug-in state of the fixed plug-in 1602 and the fixed slot 19, making it easier to disassemble and assemble the photovoltaic panel 6, so as to facilitate subsequent disassembly and replacement of the photovoltaic panel 6.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An asphalt plant hot regeneration drying drum, characterized in that: It comprises a drying drum body (1), a mixing and stirring mechanism, a first scraper and cleaning rod (12), a discharge mechanism (14) and a second scraper and cleaning rod (21); The bottom of the drying drum body (1) is provided with a discharge port (13); the mixing and stirring mechanism is coaxially connected to the drying drum body (1); the mixing and stirring mechanism is connected to a first scraper cleaning rod (12) and both are arranged inside the drying drum body (1); the first scraper cleaning rod (12) is in contact with the inner wall of the drying drum body (1); The discharge mechanism (14) is connected to the mixing and stirring mechanism, and the second scraper and cleaning rod (21) is connected to the discharge mechanism (14). The second scraper and cleaning rod (21) and the discharge mechanism (14) are both arranged inside the discharge port (13), and the second scraper and cleaning rod (21) is in contact with the inner wall of the discharge port (13).

2. The asphalt plant hot regeneration drying drum according to claim 1 is characterized in that: The mixing and stirring mechanism comprises a stirring drive (9) and a stirring shaft blade (10), wherein the stirring drive (9) is connected to the top of the drying drum body (1), the stirring shaft blade (10) is connected to the output end of the stirring drive (9), the first scraper cleaning rod (12) is connected to the stirring shaft blade (10) via a first connecting rod (11), and the first scraper cleaning rod (12) is located on the outside of the stirring shaft blade (10); and the discharge mechanism (14) is connected to the bottom end of the stirring shaft blade (10).

3. The asphalt plant hot regeneration drying drum according to claim 2, characterized in that: The stirring drive (9) is connected to the drying drum body (1) via a connecting frame (8).

4. The asphalt plant hot regeneration drying drum according to claim 2, characterized in that: The outer side of the drying drum body (1) is provided with a protective steel plate (3) and a rubber outer layer (4), and the rubber outer layer (4) is provided on the outer side of the protective steel plate (3).

5. The asphalt plant hot regeneration drying drum according to claim 2, characterized in that: A temperature insulation plate (2) is provided between the inner wall of the drying drum body (1) and the outer wall of the drying drum body (1).

6. The asphalt plant hot regeneration drying drum according to claim 2, characterized in that: A photovoltaic panel (6) and a storage battery (7) electrically connected to the photovoltaic panel (6) are arranged on the top of the drying drum body (1); the storage battery (7) is electrically connected to the stirring drive (9).

7. The asphalt plant hot regeneration drying drum according to claim 6, characterized in that: The photovoltaic panel (6) is detachably connected to the drying drum body (1).

8. The asphalt plant hot regeneration drying drum according to claim 7, characterized in that: The photovoltaic panel (6) is provided with fixed slots (19) on opposite sides, and two fixed plug-ins (1602) are provided on the outer side of the photovoltaic panel (6), one end of the fixed plug-in (1602) cooperates with the corresponding fixed slot (19), and the other end of the fixed plug-in (1602) is elastically connected to the drying drum body (1), and a toggle rod (1601) is provided on the fixed plug-in (1602).

Images