Softening mechanism for asphalt cold patch recycling

Abstract

The utility model relates to bitumen processing technical field especially, relate to a kind of softening mechanism for asphalt cold patch material recycling, the softening mechanism for asphalt cold patch material recycling includes installation frame, the installation frame is equipped with crushing box, the crushing box upper portion is provided with feeding hopper. Through feeding hopper, the cold asphalt cold patch material to be handled is input crushing box, crushing box inside can first carry out crushing treatment to the cold patch material of block or condensation, it is decomposed into smaller particle, by driving motor work, drive stirring conveying shaft rotation, and then drive stirring push fan blade rotation, the cold patch material that enters heating cylinder interior is stirred, so that cold patch material can be fully contacted with inner cylinder inner wall and softened, and the material is pushed to guide tube by upper softening component, and enters lower softening component by guide tube, which is equivalent to extending the length of overall heating section, the material is subjected to double heating process in the upper and lower softening components, and the heating time and heating uniformity are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of asphalt processing technology, and in particular to a softening mechanism for recycling cold asphalt patching material. Background Technology

[0002] Cold patch asphalt is a type of asphalt material made from asphalt and cold patching agents. It can generally be used in a temperature range of -20℃ to 50℃. No tack coat is needed for road repairs; it can be used immediately upon application and requires no heavy equipment, allowing for quick traffic resumption and significantly alleviating traffic congestion caused by road repairs. However, after prolonged storage, the cold patching agent in cold patch asphalt will evaporate, and the bagged material will harden, failing to meet usage standards. To prevent resource waste, it can be recycled, reprocessed with appropriate cold patching agents, and softened.

[0003] A softening device for cold asphalt patch material, disclosed in CN216799651U, uses a second auger to push out a softening mechanism to complete the softening operation, facilitating the reprocessing of hardened cold asphalt patch material and making it easier to handle expired cold asphalt patch material. The crushing component of this softening device can shear and break up lumpy cold asphalt patch material, facilitating subsequent softening operations. The conveyor belt of the conveying mechanism is arranged in a mesh pattern, which facilitates the dripping of liquid substances such as cold patch agent into the storage tank for recycling. However, due to the high hardness of cold asphalt, the heating section on the conveying cylinder of these existing softening devices is relatively short, resulting in poor heating and softening effects, which affects the subsequent addition of cold patch agent. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the existing technology, due to the high hardness of cold asphalt, the heating section on the conveying cylinder of these softening devices is too short, resulting in poor heating and softening effect and affecting the effect of subsequent addition of cold patching agent. The invention provides a softening mechanism for recycling cold asphalt patching material, which solves the problem of short heating section in traditional devices and ensures that cold asphalt is fully softened.

[0005] To achieve the above objectives, this utility model provides a softening mechanism for recycling cold asphalt patching material, including an installation frame. A crushing box is installed on the installation frame, and a feeding hopper is provided above the crushing box. The discharge end of the crushing box is connected to an upper softening component. The upper softening component is connected to a lower softening component through a guide pipe. The upper and lower softening components are fixed inside the installation frame by an installation plate. A discharge pipe is provided at one end of the lower softening component. The upper softening component includes a drive motor, which is connected to the installation frame. One end of the drive motor is connected to a mixing and conveying shaft. A heating cylinder is provided on the outside of the mixing and conveying shaft, and mixing and pushing blades are provided on the mixing and conveying shaft.

[0006] As a further description of the above technical solution: both the upper softening component and the lower softening component are provided with air guide pipes, the air guide pipes are connected to the exhaust box, and the exhaust box is provided with a filter screen and an activated carbon plate.

[0007] As a further description of the above technical solution: the heating cylinder includes an outer cylinder and an inner cylinder, the inner cylinder is wrapped around the outside of the stirring and conveying shaft, and a heating wire is provided between the outer cylinder and the inner cylinder.

[0008] As a further description of the above technical solution: the lower softening component has the same structure as the upper softening component, and the pushing direction of the fan blades inside the lower softening component is opposite to the pushing direction of the fan blades inside the upper softening component.

[0009] As a further description of the above technical solution: a crushing shaft is provided inside the crushing box, and crushing blades are provided on the crushing shaft. The crushing shaft is connected to the driving component.

[0010] As a further description of the above technical solution: the crushing box includes an upper shell and a lower shell, the lower shell is connected to the mounting frame, one side of the upper shell is rotatably connected to the lower shell through a rotating shaft, and the other side of the upper shell is detachably connected to the lower shell through bolts.

[0011] As a further description of the above technical solution: the feeding hopper includes a vertical hopper and a horizontal hopper, the lower end of the vertical hopper is connected to the upper shell, and the upper end of the vertical hopper is connected to the horizontal hopper.

[0012] As a further description of the above technical solution: a control box and a control panel are provided on the mounting frame.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] This invention uses a feeding hopper to feed cold asphalt patching material into a crushing chamber. Inside the crushing chamber, lumpy or agglomerated cold patching material is first crushed into smaller particles. A drive motor rotates the mixing and conveying shaft, which in turn rotates the mixing and pushing fan blades to stir the cold patching material entering the heating cylinder. This allows the cold patching material to fully contact and soften with the inner wall of the cylinder. The upper softening component pushes the material to the guide pipe, and through the guide pipe, it enters the lower softening component. This effectively extends the overall heating section length. The material undergoes a double heating process in the upper and lower softening components, significantly improving the heating time and heating uniformity. This solves the problem of short heating sections in traditional devices and ensures that the cold asphalt is fully softened. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the softening mechanism in one embodiment of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the upper and middle softening components;

[0017] Figure 3 for Figure 1 Schematic diagram of the structure of the intermediate crushing box;

[0018] Figure 4 for Figure 1 A schematic diagram of the structure of the central exhaust box.

[0019] Legend:

[0020] 1. Mounting frame; 2. Crushing box; 3. Feeding hopper; 4. Upper softening component; 5. Feed guide pipe; 6. Lower softening component; 7. Mounting plate; 8. Discharge pipe; 9. Air guide pipe; 10. Exhaust box; 11. Filter screen; 12. Activated carbon plate; 13. Crushing shaft; 14. Drive component; 15. Control box; 16. Control panel; 201. Upper shell; 202. Lower shell; 203. Rotating shaft; 204. Bolt; 31. Vertical bucket; 32. Horizontal bucket; 41. Drive motor; 42. Stirring and conveying shaft; 43. Heating cylinder; 44. Stirring and pushing fan blades; 45. Outer cylinder; 46. Inner cylinder; 47. Heating wire. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" 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 mechanical connection or an electrical 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 according to the specific circumstances.

[0024] like Figure 1-4 As shown, this utility model discloses a softening mechanism for recycling asphalt cold patching material, including an installation frame 1, a crushing box 2 installed on the installation frame 1, a feeding hopper 3 above the crushing box 2, the discharge end of the crushing box 2 connected to an upper softening component 4, the upper softening component 4 connected to a lower softening component 6 via a guide pipe 5, the upper softening component 4 and the lower softening component 6 fixed inside the installation frame 1 by an installation plate 7, and a discharge pipe 8 provided at one end of the lower softening component 6; the upper softening component 4 includes a drive motor 41, the drive motor 41 is connected to the installation frame 1, one end of the drive motor 41 is connected to a mixing conveyor shaft 42, a heating cylinder 43 is provided on the outside of the mixing conveyor shaft 42, a mixing and pushing fan blade 44 is provided on the mixing conveyor shaft 42, the heating cylinder 43 includes an outer cylinder 45 and an inner cylinder 46, the inner cylinder 46 is wrapped around the outside of the mixing conveyor shaft 42, and a heating wire 47 is provided between the outer cylinder 45 and the inner cylinder 46.

[0025] In the technical solution of this utility model, the cold asphalt patch material to be processed is fed into the crushing box 2 through the feeding hopper 3. The crushing box 2 can first crush the blocky or agglomerated cold patch material into smaller particles, providing a more uniform material base for the subsequent softening process and avoiding insufficient softening of large pieces of material due to small heating area. The drive motor 41 drives the stirring and conveying shaft 42 to rotate, which in turn drives the stirring and pushing fan blades 44 to rotate, stirring the cold patch material entering the heating cylinder 43. This makes the cold patch material flow strongly, allowing it to fully contact and soften with the inner wall of the inner cylinder 46. The upper softening component 4 pushes the material to the guide pipe 5. After entering the lower softening component 6 through the guide pipe 5, the reverse pushing fan blades cause the material to undergo another heating and conveying path, which is equivalent to extending the overall heating section length. The material undergoes a dual heating process of "forward pushing + reverse pushing" in the upper and lower softening components, significantly improving the heating time and heating uniformity, solving the problem of short heating section in traditional devices, and ensuring that the cold asphalt is fully softened.

[0026] Specifically, the lower softening component 6 has the same structure as the upper softening component 4, but the pushing direction of the fan blades inside the lower softening component 6 is opposite to the pushing direction of the fan blades inside the upper softening component 4.

[0027] The mounting frame 1 is equipped with a control box 15 and a control panel 16; the device can be controlled to operate through the control box 15, and the relevant parameters can be controlled through the control panel 16.

[0028] like Figure 1 and Figure 4As shown, both the upper softening component 4 and the lower softening component 6 are equipped with air guide pipes 9, which are connected to the exhaust box 10. The exhaust box 10 is equipped with a filter screen 11 and an activated carbon plate 12. The vapor generated inside the upper softening component 4 and the lower softening component 6 can be introduced into the exhaust box 10 through the air guide pipes 9. The filter screen 11 and the activated carbon plate 12 inside the exhaust box 10 can adsorb harmful gases in the gas, so that the gas is purified before being discharged, thus avoiding pollution of the working environment.

[0029] like Figure 1 and Figure 3 As shown, a crushing shaft 13 is installed inside the crushing box 2, and crushing blades are installed on the crushing shaft 13. The crushing shaft 13 is connected to the driving component 14. The operation of the driving component 14 drives the crushing shaft 13 and the crushing blades to rotate, which can crush the incoming recycled material and accelerate the subsequent softening efficiency.

[0030] like Figure 1 and Figure 3 As shown, the crushing box 2 includes an upper shell 201 and a lower shell 202. The lower shell 202 is connected to the mounting frame 1. One side of the upper shell 201 is rotatably connected to the lower shell 202 via a rotating shaft 203, and the other side of the upper shell 201 is detachably connected to the lower shell 202 via bolts 204. By removing the bolts 204, the upper shell 201 can be easily opened via the rotating shaft 203, making it convenient to inspect and replace the crushing shaft 13 and crushing blades inside the crushing box 2.

[0031] like Figure 1 and Figure 3 As shown, the feeding hopper 3 includes a vertical hopper 31 and a horizontal hopper 32. The lower end of the vertical hopper 31 is connected to the upper shell 201, and the upper end of the vertical hopper 31 is connected to the horizontal hopper 32. The combination of the vertical hopper 31 and the horizontal hopper 32 allows the recycled material to be smoothly introduced into the crushing box 2 from above, effectively guiding the recycled material into the shell from above, reducing waste or deviation of material during the conveying process. The horizontal hopper 32 effectively prevents the recycled material from splashing out during the crushing process.

[0032] Working principle: The cold asphalt patch material to be processed is fed into the crushing box 2 through the feeding hopper 3. The crushing box 2 can first crush the blocky or agglomerated cold patch material into smaller particles, providing a more uniform material base for the subsequent softening process and avoiding insufficient softening of large pieces of material due to small heating area. The drive motor 41 drives the stirring and conveying shaft 42 to rotate, which in turn drives the stirring and pushing fan blades 44 to rotate, stirring the cold patch material entering the heating cylinder 43. This makes the cold patch material flow strongly, allowing it to fully contact and soften with the inner wall of the inner cylinder 46. The upper softening component 4 pushes the material to the guide pipe 5. After entering the lower softening component 6 through the guide pipe 5, the reverse pushing fan blades cause the material to undergo another heating and conveying path, which is equivalent to extending the overall heating section length. The material undergoes a dual heating process of "forward pushing + reverse pushing" in the upper and lower softening components, significantly improving the heating time and heating uniformity, solving the problem of short heating section in traditional devices, and ensuring that the cold asphalt is fully softened.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A softening mechanism for recycling cold asphalt patching material, characterized in that, The system includes an installation frame (1), on which a crushing box (2) is installed. A feeding hopper (3) is provided above the crushing box (2). The discharge end of the crushing box (2) is connected to an upper softening component (4). The upper softening component (4) is connected to a lower softening component (6) through a guide pipe (5). The upper softening component (4) and the lower softening component (6) are fixed inside the installation frame (1) by an installation plate (7). A discharge pipe (8) is provided at one end of the lower softening component (6). The upper softening component (4) includes a drive motor (41), which is connected to the mounting frame (1). One end of the drive motor (41) is connected to the stirring conveyor shaft (42). A heating cylinder (43) is provided on the outside of the stirring conveyor shaft (42), and stirring pusher blades (44) are provided on the stirring conveyor shaft (42).

2. The softening mechanism for recycling cold asphalt patching material according to claim 1, characterized in that: Both the upper softening component (4) and the lower softening component (6) are provided with air guide pipes (9), which are connected to the exhaust box (10). The exhaust box (10) is provided with a filter screen (11) and an activated carbon plate (12).

3. The softening mechanism for recycling cold asphalt patching material according to claim 1, characterized in that: The heating cylinder (43) includes an outer cylinder (45) and an inner cylinder (46). The inner cylinder (46) is wrapped around the outside of the stirring conveyor shaft (42). A heating wire (47) is provided between the outer cylinder (45) and the inner cylinder (46).

4. The softening mechanism for recycling cold asphalt patching material according to claim 1, characterized in that: The lower softening component (6) has the same structure as the upper softening component (4), and the pushing direction of the fan blades inside the lower softening component (6) is opposite to the pushing direction of the fan blades inside the upper softening component (4).

5. The softening mechanism for recycling cold asphalt patching material according to claim 1, characterized in that: The crushing box (2) is equipped with a crushing shaft (13), and the crushing shaft (13) is equipped with crushing blades. The crushing shaft (13) is connected to the drive component (14).

6. The softening mechanism for recycling cold asphalt patching material according to claim 1, characterized in that: The crushing box (2) includes an upper shell (201) and a lower shell (202). The lower shell (202) is connected to the mounting frame (1). One side of the upper shell (201) is rotatably connected to the lower shell (202) through a rotating shaft (203). The other side of the upper shell (201) is detachably connected to the lower shell (202) through bolts (204).

7. The softening mechanism for recycling cold asphalt patching material according to claim 6, characterized in that: The feeding hopper (3) includes a vertical hopper (31) and a horizontal hopper (32). The lower end of the vertical hopper (31) is connected to the upper shell (201), and the upper end of the vertical hopper (31) is connected to the horizontal hopper (32).

8. The softening mechanism for recycling cold asphalt patching material according to claim 1, characterized in that: The mounting frame (1) is equipped with a control box (15) and a control panel (16).

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