A mixing device for modified asphalt production

Abstract

This utility model discloses a mixing device for modified asphalt production, relating to the field of asphalt production technology. It includes a base and a heated mixing tank. The heated mixing tank is mounted on top of the base, and a feed inlet is installed above the heated mixing tank. A mixing assembly is installed inside the heated mixing tank, and a first bevel gear is mounted on the mixing assembly. A crushing assembly is mounted inside the feed inlet via a bearing seat. A connecting plate is mounted on the right side of the base, and a groove is formed on the upper surface of the connecting plate. A collection box is located above the connecting plate, and a conveying assembly is mounted on the left side of the collection box. A receiving box is mounted on the right side of the base. In this mixing device for modified asphalt production, the crushing assembly inside the feed inlet achieves synchronous crushing through the transmission of the first and second bevel gears, breaking the solid asphalt raw material into fine particles, increasing the contact area with the modifier, shortening the mixing time, and reducing energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of asphalt production technology, specifically to a mixing device for modified asphalt production. Background Technology

[0002] In the field of road engineering, modified asphalt, with its excellent high-temperature stability, low-temperature crack resistance, and fatigue resistance, has become a key material for improving pavement quality. Modified asphalt is produced by adding modifiers such as rubber, resin, and polymers to base asphalt and then uniformly dispersing them through high-temperature mixing, thereby improving the pavement performance of the asphalt. However, traditional modified asphalt mixing equipment faces many technical bottlenecks in the production process, making it difficult to meet the quality requirements and large-scale production needs of modern transportation for high-performance modified asphalt.

[0003] For example, Chinese utility model patent application number 201922143432.9 discloses an asphalt mixing device that can simultaneously introduce steam to heat the asphalt, resulting in more uniform heating and reducing the occurrence of localized sintering and crust formation. A baffle is installed at the asphalt inlet to effectively prevent sudden boiling within the tank, making the mixing operation safer and increasing production efficiency. However, this device still has certain drawbacks:

[0004] When solid asphalt raw materials are added, if the raw materials are not crushed and are directly put into the mixing device, it is difficult for them to come into rapid contact with the modifier and base asphalt, which affects the mixing efficiency. At the same time, the mixing process of large-particle raw materials requires more electrical energy.

[0005] Therefore, we propose a mixing device for modified asphalt production to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a mixing device for modified asphalt production, in order to solve the problem mentioned in the background art that when solid asphalt raw materials are fed into the mixing device without crushing them, it is difficult for them to quickly come into contact with the modifier and base asphalt, which affects the mixing efficiency. At the same time, the mixing process of large-particle raw materials requires more electrical energy.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a mixing device for modified asphalt production, comprising a base and a heated mixing tank, wherein the heated mixing tank is installed above the base and a feed inlet is installed above the heated mixing tank, a mixing assembly is provided inside the heated mixing tank and a first bevel gear is installed on the mixing assembly, and a crushing assembly is installed inside the feed inlet via a bearing seat;

[0008] A connecting plate is installed on the right side of the base, and a groove is provided on the upper surface of the connecting plate. A collection box is provided above the connecting plate, and a conveying component is installed on the left side of the collection box. A receiving box is installed on the right side of the base.

[0009] Preferably, a discharge pipe is installed on the lower right side of the heating and mixing tank, and a control valve is installed on the discharge pipe.

[0010] By adopting the above structural design, a small amount of material is first discharged to the receiving box for quality inspection, which avoids the production of unqualified materials in batches, reduces raw material waste, and facilitates real-time adjustment of mixing parameters to ensure the stability of finished product quality.

[0011] Preferably, a mounting bracket is installed above the heating and stirring tank, and a servo motor is installed above the mounting bracket. The servo motor is connected to the stirring assembly via an output shaft.

[0012] With the above structural design, the precise speed regulation function of the servo motor can adjust the stirring speed according to the characteristics of the raw materials, adapt to the mixing requirements of different modifiers, and ensure the uniformity of stirring.

[0013] Preferably, the crushing component is horizontally arranged inside the feed inlet, and a second bevel gear is installed at the right end of the crushing component. The second bevel gear is perpendicular to and meshes with the first bevel gear. A bearing guide seat is installed above the heating and stirring tank, and the crushing component is rotatably connected to the bearing guide seat.

[0014] By adopting the above structural design, the power of the stirring component is synchronously transmitted to the crushing component through the bevel gear transmission, eliminating the need for an additional power source. This simplifies the structure while achieving the crushing function and reducing equipment costs.

[0015] Preferably, a limiting block is installed below the collection box, and the limiting block engages with a groove on the connecting plate, with the limiting block and the groove being rotatably connected.

[0016] The above structural design allows for flexible adjustment of the material collection box angle. The tilted conveying components utilize gravity to enable materials to slide down without power, while also supporting quick replacement of the material collection box, thus improving discharge efficiency.

[0017] Preferably, the left side of the collection box has a through groove, the conveying component is connected to the through groove, and the conveying component has a smooth inclined structure design.

[0018] With the above structural design, the modified asphalt output from the discharge pipe can be quickly guided by the conveying component and transported to the inside of the collection box, thereby realizing the collection of modified asphalt.

[0019] Preferably, the receiving box has a slot on its rear side, a piston plate is installed inside the receiving box, a cylinder is installed below the connecting plate, and the cylinder is connected to the piston plate via a telescopic rod. Sealing gaskets are provided around the piston plate. A waste box is installed above the connecting plate, the waste box is located behind the receiving box and abuts against it, and the height of the receiving box is less than the height of the slot on the receiving box.

[0020] The above structural design can automatically clean up residual materials in the receiving box. The sealing gasket around the piston plate ensures no leakage, and the waste material falls directly into the waste box through the slot, improving cleaning efficiency.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the mixing device for modified asphalt production:

[0022] 1. Crushing pretreatment to improve mixing efficiency: The crushing components in the feed inlet achieve synchronous crushing through the transmission of the first bevel gear and the second bevel gear, crushing the solid asphalt raw material into fine particles, increasing the contact area with the modifier, shortening the mixing time, and reducing energy consumption;

[0023] 2. Convenient material discharge: The angle of the material collection box can be adjusted by the rotational connection between the limit block and the groove, and the inclined conveying component ensures that the material slides down smoothly. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the heating and stirring tank of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the feed inlet of this utility model;

[0026] Figure 3 This is a partial cross-sectional view of the present invention.

[0027] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0028] Figure 5 This is a schematic diagram showing the position of the limiting block below the collection box and the groove on the connecting plate of this utility model.

[0029] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0030] In the diagram: 1. Base; 2. Heating and mixing tank; 3. Feed inlet; 4. Mounting frame; 5. Servo motor; 6. Mixing assembly; 7. First bevel gear; 8. Crushing assembly; 9. Second bevel gear; 10. Bearing guide seat; 11. Discharge pipe; 12. Control valve; 13. Connecting plate; 14. Groove; 15. Collection box; 16. Limiting block; 17. Conveying assembly; 18. Receiving box; 19. Slot; 20. Piston plate; 21. Cylinder; 22. Telescopic rod; 23. Waste bin. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] Please see Figures 1-5This utility model provides a technical solution: a mixing device for modified asphalt production, comprising a base 1, a heated mixing tank 2, a feed inlet 3, a mounting frame 4, a servo motor 5, a mixing assembly 6, a first bevel gear 7, a crushing assembly 8, a second bevel gear 9, a bearing guide seat 10, a discharge pipe 11, a control valve 12, a connecting plate 13, a groove 14, a collection box 15, a limiting block 16, a conveying assembly 17, and a receiving box 18. The heated mixing tank 2 is installed above the base 1. A discharge pipe 11 is installed on the lower right side of the heating mixing tank 2, and a control valve 12 is installed on the discharge pipe 11. After the modified asphalt is mixed, the control valve 12 is opened to convey a small amount of modified asphalt through the discharge pipe 11 to the receiving box 18. The modified asphalt in the receiving box 18 is observed to see if it meets the requirements. A feed inlet 3 is installed on the top of the heating mixing tank 2. A mixing component 6 is installed inside the heating mixing tank 2, and a first bevel gear 7 is installed on the mixing component 6. A mounting bracket 4 is installed on the top of the heating mixing tank 2. A servo motor 5 is installed above the mounting frame 4, and the lower part of the servo motor 5 is connected to the mixing assembly 6 via an output shaft. The servo motor 5 drives the mixing assembly 6 to rotate via the output shaft. The mixing assembly 6 stirs the modified asphalt in the heated mixing tank 2. A crushing assembly 8 is installed inside the feed inlet 3 via a bearing seat. The crushing assembly 8 is horizontally set inside the feed inlet 3. A second bevel gear 9 is installed at the right end of the crushing assembly 8. The second bevel gear 9 is perpendicular to and meshes with the first bevel gear 7. A bearing guide seat 10 is installed above the heated mixing tank 2. The crushing assembly 8 is rotatably connected to the bearing guide seat 10. Solid asphalt raw material is fed into the feed inlet 3. The servo motor 5 is started, and its output shaft drives the mixing assembly 6 to rotate. At the same time, the first bevel gear 7 on the mixing assembly 6 drives the second bevel gear 9 to rotate, thereby driving the crushing assembly 8 to rotate at high speed in the feed inlet 3 to crush the fed solid raw material. The crushed particles fall into the heated mixing tank 2.

[0034] A connecting plate 13 is installed on the right side of the base 1, and a groove 14 is formed on the upper surface of the connecting plate 13. A collection box 15 is set above the connecting plate 13, and a conveying assembly 17 is installed on the left side of the collection box 15. A receiving box 18 is installed on the right side of the base 1. A limiting block 16 is installed below the collection box 15. The limiting block 16 engages with the groove 14 on the connecting plate 13, and the limiting block 16 is rotatably connected to the groove 14. When the modified asphalt in the receiving box 18 meets the requirements, the collection box 15 is conveyed through the groove 14 below the base 15. The limiting block 16 rotates along the groove 14, moving the conveying component 17 on the collection box 15 to a position directly below the discharge pipe 11. A through groove is provided on the left side of the collection box 15, and the conveying component 17 is connected to the through groove. The conveying component 17 has a smooth inclined structure design. When the conveying component 17 is directly below the discharge pipe 11, the control valve 12 on the discharge pipe 11 is opened, and the modified asphalt in the heated mixing tank 2 is conveyed to the interior of the collection box 15 through the discharge pipe 11, thereby facilitating the collection of the modified asphalt.

[0035] Example 2

[0036] Please see Figure 6 This utility model provides a technical solution: a mixing device for modified asphalt production, including a slot 19, a piston plate 20, a cylinder 21, a telescopic rod 22, and a waste bin 23. The difference between this embodiment and Embodiment 1 is that:

[0037] A slot 19 is provided on the rear side of the receiving box 18. A piston plate 20 is provided inside the receiving box 18. A cylinder 21 is installed below the connecting plate 13, and the cylinder 21 is connected to the piston plate 20 via a telescopic rod 22. Sealing gaskets are provided around the piston plate 20. A waste bin 23 is installed above the connecting plate 13. The waste bin 23 is located behind the receiving box 18 and abuts against it. The height of the receiving box 18 is less than the height of the slot 19 on the receiving box 18. When it is necessary to clean the residual waste in the receiving box 18, the cylinder 21 is activated, and the telescopic rod 22 pushes the piston plate 20 to push the waste out of the slot 19 and fall into the waste bin 23 on the rear side. At the same time, a scraper can be used manually to scrape out the waste above the piston plate 20, realizing convenient cleaning of waste.

[0038] Working principle: When using this modified asphalt production mixing device, firstly, solid asphalt raw materials are fed into the feed inlet 3, and the servo motor 5 is started. Its output shaft drives the mixing component 6 to rotate. At the same time, the first bevel gear 7 on the mixing component 6 drives the second bevel gear 9 to rotate, thereby driving the crushing component 8 to rotate at high speed in the feed inlet 3 to crush the fed solid raw materials. The crushed particles fall into the heated mixing tank 2. After the modified asphalt is mixed, the control valve 12 is opened, and a small amount of modified asphalt is conveyed to the receiving box 1 through the discharge pipe 11. 8. Observe whether the modified asphalt in the receiving box 18 meets the requirements. When the modified asphalt in the receiving box 18 meets the requirements, rotate the collection box 15 along the groove 14 via the lower limiting block 16, move the conveying assembly 17 on the collection box 15 to be located directly below the discharge pipe 11, and then open the control valve 12 on the discharge pipe 11. The modified asphalt in the heated mixing tank 2 is conveyed to the inside of the collection box 15 through the discharge pipe 11, thereby facilitating the collection of modified asphalt. The collection box 15 can be disassembled and replaced, thus completing a series of operations. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mixing device for producing modified asphalt, comprising a base (1) and a heated mixing tank (2), wherein the heated mixing tank (2) is mounted above the base (1), and a feed inlet (3) is mounted above the heated mixing tank (2), characterized in that: The heating and stirring tank (2) is equipped with a stirring assembly (6), and a first bevel gear (7) is installed on the stirring assembly (6). The feed inlet (3) is equipped with a crushing assembly (8) through a bearing seat. A connecting plate (13) is installed on the right side of the base (1), and a groove (14) is provided on the upper surface of the connecting plate (13). A collection box (15) is provided above the connecting plate (13), and a conveying assembly (17) is installed on the left side of the collection box (15). A receiving box (18) is installed on the right side of the base (1).

2. The mixing device for modified asphalt production according to claim 1, characterized in that: A discharge pipe (11) is installed on the lower right side of the heating and stirring tank (2), and a control valve (12) is installed on the discharge pipe (11).

3. The mixing device for modified asphalt production according to claim 2, characterized in that: A mounting bracket (4) is installed above the heating and stirring tank (2), and a servo motor (5) is installed above the mounting bracket (4), and the servo motor (5) is connected to the stirring assembly (6) below through an output shaft.

4. The mixing device for producing modified asphalt according to claim 1, characterized in that: The crushing component (8) is horizontally arranged inside the feed inlet (3). A second bevel gear (9) is installed at the right end of the crushing component (8). The second bevel gear (9) is perpendicular to and meshes with the first bevel gear (7). A bearing guide seat (10) is installed above the heating and stirring tank (2). The crushing component (8) is rotatably connected to the bearing guide seat (10).

5. The mixing device for producing modified asphalt according to claim 1, characterized in that: A limiting block (16) is installed below the collection box (15). The limiting block (16) is engaged with the groove (14) on the connecting plate (13). The limiting block (16) and the groove (14) are rotatably connected.

6. The mixing device for producing modified asphalt according to claim 1, characterized in that: The left side of the collection box (15) is provided with a through groove, and the conveying component (17) is connected to the through groove. The conveying component (17) has a smooth inclined structure design.

7. The mixing device for producing modified asphalt according to claim 1, characterized in that: The receiving box (18) has a slot (19) on its rear side. A piston plate (20) is installed inside the receiving box (18). A cylinder (21) is installed below the connecting plate (13). The cylinder (21) is connected to the piston plate (20) via a telescopic rod (22). Sealing gaskets are provided around the piston plate (20). A waste bin (23) is installed above the connecting plate (13). The waste bin (23) is located behind the receiving box (18) and abuts against it. The height of the receiving box (18) is less than the height of the slot (19) on the receiving box (18).

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