A thermally recycled asphalt mixture production equipment

Abstract

This utility model discloses a hot recycled asphalt mixture production equipment, relating to the field of asphalt recycling. It solves the problem that existing devices are unable to efficiently heat-melt and mix recycled asphalt according to demand, and adopts the following solution: It includes a mixing cylinder, with a drive motor fixedly installed at the bottom. An agitator for stirring the asphalt material is fixedly installed inside the mixing cylinder at the output end of the drive motor. A heating structure for heat-melting the recycled asphalt material is assembled at the top of the mixing cylinder. The heating structure includes a heating frame and a pressing seat that moves up and down inside it. The heating frame also has a material hole for discharging asphalt binder. This hot recycled asphalt mixture production equipment, through the overall structure of the heating structure, can heat-melt the recycled asphalt placed inside the heating frame by electric heating, and efficiently mix the heat-melted binder-like asphalt using the components in the mixing cylinder.

Description

Technical Field

[0001] This utility model relates to the field of asphalt recycling technology, specifically to a hot recycled asphalt mixture production equipment. Background Technology

[0002] Recycled asphalt mixture refers to a mixture made by excavating, recycling, crushing, and screening old asphalt pavement, and then mixing it with recycling agents, new asphalt materials, and new aggregates in a certain proportion. The recycling of asphalt pavement can save a lot of raw materials such as asphalt and sand, save on project investment, and at the same time help to dispose of waste and protect the environment.

[0003] A search revealed that patent application number 202121346132.1 discloses a hot recycled asphalt mixture production equipment. The equipment includes: a base plate; two vertical blocks, both fixedly mounted on the top of the base plate; a transfer cylinder rotatably mounted between the two vertical blocks, with one side of the cylinder open; a rotating rod rotatably mounted inside the transfer cylinder, one end of which extends outside the cylinder; a first motor mounted on one side of the transfer cylinder, its output shaft fixedly connected to one end of the rotating rod; a cover plate mounted on one side of the transfer cylinder, adapted to the cylinder; and two hydraulic cylinders fixedly mounted on the transfer cylinder. This invention provides a hot recycled asphalt mixture production equipment that is convenient to use, simultaneously meets the needs of crushing and screening, and improves operational efficiency.

[0004] In the field of road construction and maintenance engineering, the recycling of asphalt has become an important direction for achieving resource recycling and sustainable development. Existing patent applications, based on the design of various components, achieve the crushing and screening processes of recycled asphalt. However, key aspects of the recycled asphalt processing flow still need improvement. According to industry process requirements, recycled asphalt must be heated to a gel-like state before subsequent mixing processes can proceed to ensure its performance meets recycling standards. However, in actual operation, how to achieve efficient heating of recycled asphalt, ensuring uniform heating and rapid attainment of a suitable gel-like state while avoiding localized overheating that could degrade asphalt performance; and how to design an efficient mixing scheme after the asphalt has reached a gel-like state, enabling rapid and uniform mixing of asphalt with other additives to improve mixing efficiency and quality, have become core bottlenecks restricting the development of recycled asphalt recycling technology and hindering its widespread application. These issues urgently need to be overcome through technological innovation and patent development.

[0005] Therefore, we propose a hot recycled asphalt mixture production equipment. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a hot recycled asphalt mixture production equipment, which solves the problem that existing devices are unable to efficiently heat-melt and mix recycled asphalt according to demand.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a hot recycled asphalt mixture production equipment, including a mixing cylinder, a drive motor is fixedly installed at the bottom of the mixing cylinder, a stirring frame for stirring asphalt material is fixedly installed at the output end of the drive motor and located inside the mixing cylinder, and a heating structure for hot melting processing of recycled asphalt material is assembled at the top of the mixing cylinder.

[0008] The heating structure includes a heating frame and a pressing seat that moves up and down inside it. Recycled asphalt material is placed inside the heating frame, and the heating frame is also provided with a material hole for draining asphalt adhesive.

[0009] As a preferred embodiment of this utility model, heating resistance wires are provided on the side of the heating frame seat and the inner side of the pressing seat, and an electric heating seat electrically connected to the corresponding heating resistance wire is fixedly installed on the outer wall of the mixing cylinder.

[0010] The heating resistance wires in the heating frame and pressing base enable the electric heating base to heat up the recycled asphalt material placed inside the heating frame, thus achieving the effect of pre-crushing.

[0011] As a preferred embodiment of this utility model, an L-shaped support is fixedly installed on the top of the heating frame, and a hydraulic cylinder assembly is fixedly installed at the center of the top of the support, with a pressure seat fixedly connected to the bottom end of the output shaft of the hydraulic cylinder assembly.

[0012] The support and its hydraulic cylinder assembly facilitate the adjustment of the height of the pressing seat, so as to squeeze the asphalt material between the pressing seat and the bottom of the inner end of the heating frame seat downward, thereby increasing the contact area between them and further enhancing the heat melting effect on the recycled asphalt material.

[0013] As a preferred embodiment of this utility model, the bottom of the inner side of the heating frame is provided with material balls distributed in a filling manner, and the bottom plate of the heating frame is provided with material holes located outside the material balls and distributed in a filling manner.

[0014] The addition of material balls increases the contact area between the heating element and the recycled asphalt, thus enhancing the hot-melting effect. Meanwhile, the material holes facilitate the injection of the molten gel-like asphalt into the mixing cylinder for subsequent thorough mixing.

[0015] As a preferred embodiment of this utility model, the bottom of the mixing cylinder is supported by three sets of inclined L-shaped frames, and a discharge pump is also fixedly installed on the output end of the mixing cylinder.

[0016] Among them, the three sets of L-shaped frames can provide stable support for the mixing cylinder from the bottom side, ensuring its operational stability.

[0017] As a preferred embodiment of the present invention, the stirring frame includes a main rotating shaft fixedly mounted on the output shaft of the drive motor and a stirring rod assembly disposed on its outer wall, wherein the stirring rod assembly consists of an upper inclined stirring rod distributed in a ring at the top and a lower inclined stirring rod on the bottom side.

[0018] The mixing structure enables efficient mixing of recycled asphalt binder inside the mixing drum, facilitating its subsequent secondary recycling.

[0019] This utility model provides a hot recycled asphalt mixture production equipment. It has the following beneficial effects:

[0020] This hot recycled asphalt mixture production equipment, through the overall design of the heating structure, can heat-melt the recycled asphalt placed inside the heating frame by electric heating, and use the components in the mixing cylinder to efficiently mix the heat-melted gel-like asphalt, thus solving the problem that existing equipment is unable to efficiently heat-melt and mix recycled asphalt according to demand. Attached Figure Description

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

[0022] Figure 2 This is a schematic diagram of the inner structure of the mixing cylinder of this utility model;

[0023] Figure 3 This is a schematic diagram of the heating structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the inner side of the heating structure of this utility model.

[0025] In the diagram: 1. Mixing cylinder; 11. Discharge pump; 12. Drive motor; 13. Stirring frame; 2. Heating structure; 21. Heating frame seat; 22. Support; 23. Hydraulic cylinder group; 24. Pressing seat; 25. Material ball; 26. Material hole; 3. Electric heating seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a hot recycled asphalt mixture production equipment, including a mixing cylinder 1, a drive motor 12 fixedly installed at the bottom of the mixing cylinder 1, a stirring frame 13 located inside the mixing cylinder 1 for stirring asphalt material fixedly installed at the output end of the drive motor 12, and a heating structure 2 for hot melting processing of recycled asphalt material assembled at the top of the mixing cylinder 1; the heating structure 2 includes a heating frame 21 and a pressing seat 24 that moves up and down inside it, recycled asphalt material is placed inside the heating frame 21, and a material hole 26 for draining asphalt adhesive is also provided in the heating frame 21;

[0028] The hot recycled asphalt mixture production equipment, through the overall structure of the heating structure 2, can heat-melt the recycled asphalt placed inside the heating frame 21 by electric heating, and use the components in the mixing cylinder 1 to efficiently mix the heat-melted gel-like asphalt, thus solving the problem that existing devices are unable to efficiently heat-melt and mix recycled asphalt according to demand.

[0029] Example 2:

[0030] Heating resistance wires are provided on the side of the heating frame 21 and the inside of the pressing seat 24, and an electric heating seat 3 that is electrically connected to the corresponding heating resistance wire is fixedly installed on the outer wall of the mixing cylinder 1. The heating resistance wires in the heating frame 21 and the pressing seat 24 can be heated by the electric heating seat 3 to heat the recycled asphalt material placed inside the heating frame 21, thereby achieving the effect of pre-crushing.

[0031] An L-shaped support 22 is fixedly installed on the top of the heating frame 21. A hydraulic cylinder assembly 23 is fixedly installed at the center of the top of the support 22, and a pressure seat 24 is fixedly connected to the bottom of the output shaft of the hydraulic cylinder assembly 23. The support 22 and the hydraulic cylinder assembly 23 on it facilitate the adjustment of the height of the pressure seat 24, so as to squeeze the asphalt material between the pressure seat 24 and the bottom of the inner end of the heating frame 21 downward, increase the contact area between them, and further increase the heat melting effect on the recycled asphalt material.

[0032] The bottom of the inner side of the heating frame 21 is provided with material balls 25 distributed in a filling pattern, and the bottom plate of the heating frame 21 is provided with material holes 26 located outside the material balls 25 and distributed in a filling pattern. The material balls 25 can further increase the contact area between the heating part and the recycled asphalt material, thereby increasing the hot melting effect. The material holes 26 facilitate the injection of the molten gel-like asphalt into the mixing cylinder 1 for subsequent thorough mixing.

[0033] The bottom of the mixing cylinder 1 is supported by three sets of inclined L-shaped frames, and a discharge pump 11 is also fixedly installed on the output end of the mixing cylinder 1; the three sets of L-shaped frames can provide stable support for the mixing cylinder 1 from the bottom side, ensuring its working stability.

[0034] The mixing frame 13 includes a main rotating shaft fixedly mounted on the output shaft of the drive motor 12 and a mixing rod assembly disposed on its outer wall. The mixing rod assembly consists of an upper inclined mixing rod arranged in a ring at the top and a lower inclined mixing rod on the bottom. The structure of the mixing frame 13 enables efficient mixing of the recycled asphalt rubber material inside the mixing cylinder 1, so as to facilitate its secondary recycling.

[0035] The working principle and usage process of this utility model are as follows: When the device is required to work, the recovered asphalt material is placed inside the heating frame 21, and the hydraulic cylinder group 23 drives the pressing seat 24 to press down, increasing the contact area between the asphalt material and the inner wall of the heating frame 21 and the bottom surface of the pressing seat 24, so as to achieve efficient heat melting of the recovered asphalt. At the same time, the gel-like asphalt liquid after heat melting is automatically injected into the inner side of the mixing cylinder 1 through the material hole 26. Then, the drive motor 12 at the bottom of the mixing cylinder 1 drives the stirring frame 13 to rotate, so as to efficiently stir and mix the gel-like asphalt inside the mixing cylinder 1. Finally, the discharge pump 11 outputs the mixed liquid.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hot recycled asphalt mixture production plant, characterized by: The mixture includes a mixing cylinder (1), a drive motor (12) is fixedly installed at the bottom of the mixing cylinder (1), a stirring frame (13) for stirring asphalt material is fixedly installed at the output end of the drive motor (12) located inside the mixing cylinder (1), and a heating structure (2) for hot melting processing of recycled asphalt material is assembled at the top of the mixing cylinder (1). The heating structure (2) includes a heating frame (21) and a pressing seat (24) that moves up and down inside. The heating frame (21) contains recycled asphalt material, and the heating frame (21) also has a material hole (26) for draining asphalt adhesive.

2. A hot recycled asphalt mix production apparatus according to claim 1, characterized in that: Heating resistance wires are provided on the side of the heating frame (21) and the inside of the pressing seat (24), and an electric heating seat (3) electrically connected to the corresponding heating resistance wire is fixedly installed on the outer wall of the mixing cylinder (1).

3. A hot recycled asphalt mix production apparatus as claimed in claim 1, wherein: The top of the heating frame (21) is fixedly installed with an L-shaped support (22), and a hydraulic cylinder assembly (23) is fixedly installed at the center of the top of the support (22), and a pressure seat (24) is fixedly connected to the bottom of the output shaft of the hydraulic cylinder assembly (23).

4. A hot recycled asphalt mix production apparatus as defined in claim 1, wherein: The bottom of the inner side of the heating frame (21) is provided with material balls (25) distributed in a filling manner, and the bottom plate of the heating frame (21) is provided with material holes (26) located outside the material balls (25) and distributed in a filling manner.

5. A hot recycled asphalt mix production apparatus as claimed in claim 1, wherein: The bottom of the mixing cylinder (1) is supported by three sets of inclined L-shaped frames, and a discharge pump (11) is also fixedly installed on the output end of the mixing cylinder (1).

6. A hot recycled asphalt mix production apparatus as defined in claim 1, wherein: The stirring frame (13) includes a main rotating shaft fixedly mounted on the output shaft of the drive motor (12) and a stirring rod assembly disposed on its outer wall. The stirring rod assembly consists of an upper inclined stirring rod distributed in a ring at the top and a lower inclined stirring rod on the bottom side.

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