Heat tracing device for recycling asphalt mixture

Abstract

The utility model discloses an asphalt mixture recycling heat tracing device which comprises a machine frame, the top of the machine frame is fixedly connected with a smashing mechanism, and the bottom of the machine frame is rotationally connected with a stirring mechanism. The smashing mechanism comprises a smashing box, two smashing rollers which rotate relatively are arranged in the smashing box, and the stirring mechanism comprises a shell and a stirring barrel installed in the shell; the tail part of the stirring barrel is fixedly connected with the output end of a second driving motor, and a plurality of electric heating plates are arranged between the inner side wall and the outer side wall of the stirring barrel. According to the utility model, the crushing mechanism is arranged at the top of the rack, and the two crushing rollers of the crushing mechanism can synchronously and relatively rotate, so that the asphalt mixture is effectively crushed; meanwhile, the stirring mechanism is arranged at the bottom of the rack, the crushed asphalt mixture can be stirred, the electric heating plate is arranged between the inner side wall and the outer side wall, heat tracing can be conducted on the asphalt mixture, and the fluidity and uniformity of the asphalt mixture are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt processing equipment, specifically to a heat tracing device for the reuse of asphalt mixtures. Background Technology

[0002] In the field of road construction and maintenance, asphalt mixtures are used in enormous quantities as a crucial road building material. With the continuous advancement of road construction and frequent renovations of existing roads, large quantities of old asphalt mixtures are discarded, resulting not only in resource waste but also a severe burden on the environment. Therefore, realizing the reuse of asphalt mixtures can significantly reduce production costs and aligns with the concept of green and environmentally friendly development, making it an important direction for the industry's development.

[0003] However, used asphalt mixtures are often in a lumpy and hardened state, making it difficult to achieve uniform mixing if directly stirred, thus compromising the quality of the reused product. Furthermore, asphalt mixtures are extremely sensitive to temperature. Improper temperature control during mixing can easily lead to increased viscosity and decreased flowability due to temperature drops. This not only increases the difficulty and efficiency of mixing but may also affect the final performance of the mixture, failing to meet the actual needs of road construction.

[0004] Based on the above, this utility model proposes a heating device for the reuse of asphalt mixtures, which can effectively solve the above problems. Utility Model Content

[0005] This utility model addresses the shortcomings of the existing technology by providing a heating device for the reuse of asphalt mixtures.

[0006] This utility model is achieved through the following technical solution:

[0007] A heating device for the reuse of asphalt mixtures includes a frame, a crushing mechanism fixedly connected to the top of the frame, and a stirring mechanism rotatably connected to the bottom of the frame. The crushing mechanism includes a crushing box with a feed inlet at the top and a discharge hopper at the bottom. Inside the crushing box are two relatively rotating crushing rollers. One end of one crushing roller is fixedly connected to the output of a first drive motor, and the other end is fixedly connected to a first gear. The first gear meshes with a second gear, which is fixedly connected to one end of the other crushing roller. The stirring mechanism includes a housing and a stirring drum installed inside the housing. The tail end of the stirring drum is fixedly connected to the output of a second drive motor, which is fixedly connected to the rear of the housing. The inner sidewall of the stirring drum is a regular polygon, and the outer sidewall is circular. Multiple electric heating plates are arranged between the inner and outer sidewalls of the stirring drum.

[0008] According to the above technical solution, as a further preferred technical solution, the bottom two sides of the outer shell are respectively fixedly connected with rotating shafts that are rotatably connected to the frame.

[0009] According to the above technical solution, as a further preferred technical solution, a driving mechanism for driving and stirring mechanism to rotate is provided on the top side of the outer shell; the driving mechanism includes a first rotating seat fixedly connected to the outer shell, the first rotating seat being rotatably connected to the telescopic end of the driving cylinder, a collar being fixedly connected to the outer side wall of the driving cylinder, and the collar being rotatably connected to a second rotating seat.

[0010] According to the above technical solution, as a further preferred technical solution, the inside of the stirring drum is provided with multiple lifting plates; the lifting plates are triangular, and the multiple lifting plates are evenly distributed at equal angles with the center of the inner bottom wall of the stirring drum as the center, and the two sides of the lifting plates are fixedly connected to the inner side wall and the inner bottom wall of the stirring drum, respectively.

[0011] According to the above technical solution, as a further preferred technical solution, a sealing door is rotatably connected to the front side of the stirring tank.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] This utility model provides a heating device for the reuse of asphalt mixtures. A crushing mechanism is installed at the top of the frame, with two crushing rollers rotating synchronously relative to each other to effectively crush the asphalt mixture. Simultaneously, a stirring mechanism is installed at the bottom of the frame. The stirring drum of the stirring mechanism is driven by a second drive motor to stir the crushed asphalt mixture. An electric heating plate is installed between the inner and outer walls to heat the asphalt mixture inside the stirring drum, preventing the asphalt mixture from cooling down during stirring and affecting the stirring and reuse effect, thus ensuring the fluidity and uniformity of the asphalt mixture. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the crushing mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the stirring mechanism of this utility model;

[0017] Figure 4 for Figure 3 Internal structure diagram;

[0018] Figure 5This is a schematic diagram of the drive mechanism structure of this utility model; Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0020] A heating device for the reuse of asphalt mixtures includes a frame 1. A crushing mechanism 2 is fixedly connected to the top of the frame 1, and a stirring mechanism 3 is rotatably connected to the bottom of the frame 1. The crushing mechanism 2 includes a crushing box 21, with a feed inlet 22 at the top and a discharge hopper 23 at the bottom. Inside the crushing box 21 are two relatively rotating crushing rollers 24. One end of one crushing roller 24 is fixedly connected to the output end of a first drive motor 25, and the other end is fixedly connected to a first gear 26. The first gear 26 is meshed with a second gear 27, and the second gear 27 is fixedly connected to one end of another crushing roller 24; the stirring mechanism 3 includes a housing 31 and a stirring cylinder 32 installed inside the housing 31; the tail of the stirring cylinder 32 is fixedly connected to the output end of a second drive motor 33, and the second drive motor 33 is fixedly connected to the rear of the housing 31; the inner sidewall of the stirring cylinder 32 is a regular polygon, and the outer sidewall is circular; a plurality of electric heating plates 34 are provided between the inner sidewall and the outer sidewall of the stirring cylinder 32.

[0021] This invention features a crushing mechanism 2 at the top of the frame 1, with two crushing rollers 24 rotating synchronously relative to each other to effectively crush the asphalt mixture. Simultaneously, a stirring mechanism 3 is installed at the bottom of the frame 1. The stirring drum 32 of the stirring mechanism 3 is driven by a second drive motor 33 to stir the crushed asphalt mixture. An electric heating plate 34 is installed between the inner and outer walls to heat the asphalt mixture inside the stirring drum 32, preventing the asphalt mixture from being affected by temperature drops during stirring and ensuring the fluidity and uniformity of the asphalt mixture.

[0022] Furthermore, in another embodiment, rotating shafts 4, which are rotatably connected to the frame 1, are fixedly connected to both sides of the bottom of the outer casing 31. A driving mechanism 5 for driving the stirring mechanism 3 to rotate is provided on one side of the top of the outer casing 31; the driving mechanism 5 includes a first rotating seat 51 fixedly connected to the outer casing 31, the first rotating seat 51 being rotatably connected to the telescopic end of the driving cylinder 52, and a collar 53 fixedly connected to the outer side wall of the driving cylinder 52, the collar 53 being rotatably connected to a second rotating seat 54.

[0023] By setting a rotating shaft 4 and a drive mechanism 5, the extension and retraction of the drive cylinder 52 can drive the stirring mechanism 3 to rotate. The rotation angle and position of the stirring mechanism 3 can be precisely controlled as needed to meet different operational requirements. For example, the angle of the stirring drum can be adjusted during unloading to make unloading smoother, thereby improving the operability and automation of the device.

[0024] Furthermore, in another embodiment, the interior of the stirring drum 32 is provided with a plurality of lifting plates 35; the lifting plates 35 are triangular in shape, and the plurality of lifting plates 35 are evenly distributed at equal angles with the center of the inner bottom wall of the stirring drum 32 as the center, and the two sides of the lifting plates 35 are fixedly connected to the inner side wall and the inner bottom wall of the stirring drum 32, respectively.

[0025] By setting up the lifting plate 35, the lifting plate 35 can lift and throw the asphalt mixture during the rotation of the mixing drum 32, which increases the agitation and mixing degree of the material, makes the asphalt mixture more uniform, improves the mixing quality, and is conducive to the reuse of asphalt mixture.

[0026] Furthermore, in another embodiment, a sealing door 36 is rotatably connected to the front side of the stirring tank 32.

[0027] By setting a sealing door 36, the mixing drum 32 can be kept sealed during the mixing process, preventing material leakage and heat loss, and ensuring mixing effect and safety.

[0028] The working principle of one embodiment of this utility model is as follows:

[0029] First, the asphalt mixture to be processed is fed into the feed inlet 22 at the top of the crushing mechanism 2. One of the crushing rollers 24 of the first drive motor 25 rotates. Since the other end of the crushing roller 24 is fixedly connected to the first gear 26, which meshes with the second gear 27, the rotation of the first gear 26 will drive the second gear 27 to rotate relative to it. The two relatively rotating crushing rollers 24 squeeze and crush the asphalt mixture entering the crushing box 21. The crushed material falls into the mixing drum 32 of the mixing mechanism 3 below through the discharge hopper 23 at the bottom of the crushing box 21. After a certain amount is reached in the mixing drum 32, the sealing door 36 is manually closed. Then the drive mechanism 5 starts to work. The extension and retraction of the drive cylinder 52 will drive the mixing mechanism 3 to rotate around the rotating shaft 4 in an inclined upward state. Then the mixing mechanism 3 starts to work. The second drive motor 33 drives the mixing drum 32 to rotate. Multiple lifting plates 35 set inside the mixing drum 32 will lift and scatter the asphalt mixture at the bottom and side walls as the mixing drum 32 rotates, increasing the degree of mixing of the material and making the asphalt mixture more uniform. During the mixing process, multiple electric heating plates 34 between the inner and outer walls of the mixing drum 32 are energized and heated to heat the asphalt mixture inside the mixing drum 32, ensuring the reuse effect of the asphalt mixture. After the mixing is completed, the sealing door 36 is manually opened, and the drive mechanism 5 works again, driving the mixing mechanism 3 to rotate around the rotating shaft 4 in a tilted downward state, so that the asphalt mixture inside the mixing drum 32 can be poured out smoothly. After all the asphalt mixture has been poured out, the drive mechanism 5 drives the mixing mechanism 3 back to the initial state.

[0030] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the asphalt mixture reuse heat tracing device of this utility model, and can produce the positive effects described in this utility model.

[0031] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0032] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A heating device for the reuse of asphalt mixtures, characterized in that: The device includes a frame (1), a crushing mechanism (2) fixedly connected to the top of the frame (1), and a stirring mechanism (3) rotatably connected to the bottom of the frame (1); the crushing mechanism (2) includes a crushing box (21), a feed inlet (22) opened at the top of the crushing box (21), and a discharge hopper (23) provided at the bottom of the crushing box (21); the crushing box (21) is equipped with two relatively rotating crushing rollers (24) inside, one end of one crushing roller (24) is fixedly connected to the output end of a first drive motor (25), and the other end is fixedly connected to a first gear (26), the first gear (26) A second gear (27) is meshed with the second gear (27), which is fixedly connected to one end of another crushing roller (24); the stirring mechanism (3) includes a housing (31) and a stirring cylinder (32) installed inside the housing (31); the tail of the stirring cylinder (32) is fixedly connected to the output end of a second drive motor (33), which is fixedly connected to the rear of the housing (31); the inner sidewall of the stirring cylinder (32) is a regular polygon and the outer sidewall is circular; a plurality of electric heating plates (34) are provided between the inner sidewall and the outer sidewall of the stirring cylinder (32).

2. The asphalt mixture reuse heat tracing device according to claim 1, characterized in that: The bottom sides of the outer shell (31) are respectively fixedly connected to rotating shafts (4) that are rotatably connected to the frame (1).

3. The asphalt mixture reuse heat tracing device according to claim 1, characterized in that: The top side of the outer shell (31) is provided with a drive mechanism (5) for driving the stirring mechanism (3) to rotate; the drive mechanism (5) includes a first rotating seat (51) fixedly connected to the outer shell (31), the first rotating seat (51) being rotatably connected to the telescopic end of the drive cylinder (52), a collar (53) being fixedly connected to the outer side wall of the drive cylinder (52), and the collar (53) being rotatably connected to a second rotating seat (54).

4. The asphalt mixture reuse heat tracing device according to claim 1, characterized in that: The stirring cylinder (32) is provided with a plurality of lifting plates (35); the lifting plates (35) are triangular in shape, and the plurality of lifting plates (35) are evenly distributed at equal angles with the center of the inner bottom wall of the stirring cylinder (32) as the center, and the two sides of the lifting plates (35) are fixedly connected to the inner side wall and the inner bottom wall of the stirring cylinder (32) respectively.

5. The asphalt mixture reuse heat tracing device according to claim 1, characterized in that: A sealing door (36) is rotatably connected to the front side of the stirring drum (32).

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