Secondary heating device for SBS (Styrene Butadiene Styrene) modified asphalt

Abstract

The utility model discloses a secondary heating device for SBS (Styrene Butadiene Styrene) modified asphalt, which belongs to the technical field of secondary heating of the SBS modified asphalt and comprises a tank body, a feeding hole is formed in the side wall of the upper end of the tank body, and a discharge hole is formed in the lower end of the tank body; the heating assembly is mounted in the tank body and is used for dynamically heating asphalt in the tank body; the cleaning assembly is installed inside the tank body in a sliding mode and used for cleaning the asphalt on the inner wall of the tank body and the heating assembly when the asphalt is discharged, the middle heating rod and the peripheral heating rods are driven by the installation frame to rotate, heat can be evenly dispersed, and the heating efficiency is improved.

Description

Technical Field

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

[0002] Existing asphalt secondary heating devices generally use static heating, which results in a significantly higher temperature near the heat source compared to areas further away, leading to uneven internal temperature distribution within the asphalt. This necessitates gradual heat diffusion within the asphalt, resulting in low heating efficiency. Therefore, this invention provides a secondary heating device for SBS modified asphalt. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a secondary heating device for SBS modified asphalt. By using a mounting frame to drive the central heating rod and the peripheral heating rod to rotate, heat can be evenly distributed, thereby improving heating efficiency.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides a secondary heating device for SBS modified asphalt, comprising:

[0005] The tank body has a feed inlet on the upper side wall and a discharge outlet at the lower end;

[0006] A heating assembly, installed inside the tank, dynamically heats the asphalt inside the tank.

[0007] A cleaning assembly, which is slidably mounted inside the tank, is used to clean the asphalt from the inner wall of the tank and the heating assembly when asphalt is discharged.

[0008] Preferably, the heating assembly includes:

[0009] Mounting bracket, which is installed inside the tank;

[0010] An intermediate heating rod is fixedly installed at the center of the mounting bracket.

[0011] Multiple peripheral heating rods are fixedly mounted on the mounting bracket and distributed around the circumference of the central heating rod;

[0012] The intermediate heating rod and the peripheral heating rod are electric heating devices.

[0013] Preferably, the mounting bracket is rotatably mounted inside the tank and driven by a motor mounted on the upper surface of the tank.

[0014] Preferably, a connecting shaft is fixedly connected to the mounting bracket, the upper end of the connecting shaft passes through the tank body and is fixedly connected to a driven gear, the driven gear meshes with a driving gear fixedly installed on the motor shaft, a brush module is installed on the connecting shaft, and the intermediate heating rod and multiple peripheral heating rods are connected to an external power source through the brush module.

[0015] Preferably, a support frame is symmetrically provided above the drive gear. The support frame is U-shaped, with its open end fixedly connected to the tank body and its closed end supporting the motor.

[0016] Preferably, the cleaning component includes:

[0017] The scraper is installed inside the tank and its outer ring surface is in contact with the inner wall of the tank. The scraper is provided with through holes that are adapted to the central heating rod and multiple peripheral heating rods.

[0018] The upper end of the tank is provided with an air inlet pipe, and the upper side of the scraper is provided with a settling groove.

[0019] Preferably, the outer sides of the intermediate heating rod and the multiple peripheral heating rods are provided with reinforcing rings, and the reinforcing rings are fixedly installed on the wall of the settling tank.

[0020] Preferably, a groove is provided on the inner side of the feed inlet and on the inner wall of the tank. A spring plate is provided inside the groove, and a protrusion is provided on the spring plate. The protrusion is fixedly connected to the groove wall. The spring plate presses against the groove wall under its own elastic force. The diameter of the spring plate is larger than the inner diameter of the feed inlet.

[0021] Preferably, the scraper is made of an elastic material.

[0022] Preferably, a threaded heating wire is provided below the feed inlet and inside the side wall of the tank.

[0023] The beneficial effects of this utility model are as follows:

[0024] This invention achieves dynamic heat conduction in the asphalt heating process through the coordinated design of the central heating rod and the peripheral heating rod, along with a rotatable mounting bracket. Compared with traditional static heating, it can evenly distribute heat and improve heating efficiency.

[0025] This invention, through the design of a scraper, enables the simultaneous cleaning of residual asphalt on the inner wall of the tank and the surface of the heating rod during the asphalt discharge process, thereby avoiding the problem of asphalt residue adhering to the inner wall of the tank and the surface of the heating rod, which reduces the service life of the equipment. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a secondary heating device for SBS modified asphalt provided in an embodiment of this utility model.

[0028] Figure 2 This is a top view of the present invention.

[0029] Figure 3 This utility model Figure 2 Sectional view at point AA.

[0030] Figure 4 This is a schematic diagram of the installation of the spring plate of this utility model.

[0031] Figure 5 This is a schematic diagram showing the connection between the mounting bracket, the intermediate heating rod, and the peripheral heating rod of this utility model.

[0032] Figure 6 This is a schematic diagram of the scraper of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Tank body, 2. Inlet, 3. Outlet, 4. Mounting frame, 5. Intermediate heating rod, 6. Peripheral heating rod, 7. Motor, 8. Connecting shaft, 9. Driven gear, 10. Driven gear, 11. Scraper, 12. Air inlet pipe, 13. Settling trough, 14. Reinforcing ring, 15. Spring plate, 16. Heating wire, 17. Support frame. Detailed Implementation

[0035] 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.

[0036] This utility model provides a secondary heating device for SBS modified asphalt, such as... Figures 1 to 6 As shown.

[0037] Example 1:

[0038] A secondary heating device for SBS modified asphalt includes a tank 1. The upper side wall of the tank 1 has an inlet 2, and the lower end has an outlet 3. An electric valve is installed inside the outlet 3 to control its opening and closing. The electric valve is existing technology and widely used, therefore it will not be described in detail here, nor is it shown in the accompanying drawings. A rotatable heating assembly is installed inside the tank 1. The heating assembly includes a mounting frame 4, which is rotatably installed inside the tank 1. A central heating rod 5 is fixedly connected to the center of the lower side of the mounting frame 4. Multiple peripheral heating rods 6 are distributed around the central heating rod 5 and are fixedly installed on the mounting frame 4. The distribution of the central heating rod 5 and the peripheral heating rods 6 allows the heat source to evenly cover the inside of the tank 1, improving heating efficiency.

[0039] A connecting shaft 8 is fixedly connected to the upper side of the mounting bracket 4. The upper end of the connecting shaft 8 passes through the tank body 1 and is fixedly connected to a driven gear 9. The driven gear 9 is rotatably mounted on the upper end face of the tank body 1 and meshes with the driving gear 10, which is also rotatably mounted on the upper end face of the tank body 1. The driving gear 10 is fixedly connected to the motor shaft of the motor 7. The rotation of the motor shaft of the motor 7 can drive the mounting bracket 4 to rotate through the driving gear 10 and the driven gear 9, thereby enabling the intermediate heating rod 5 and the peripheral heating rod 6 to rotate inside the tank body 1, achieving dynamic heating and further improving the heating efficiency.

[0040] The drive gear 10 is symmetrically provided with support frames 17. The two support frames 17 are symmetrical about the center of the drive gear 10. The support frame 17 is U-shaped. The open end is fixedly connected to the upper end face of the tank body 1. The support frame 17 spans the drive gear 10 and leaves a gap between it and the drive gear 10 to avoid interfering with the rotation of the drive gear 10. The closed end of the support frame 17 is fixedly connected to the housing of the motor 7 to support and fix the motor 7.

[0041] The intermediate heating rod 5 and the multiple peripheral heating rods 6 are electric heating devices (i.e., heating resistors, which generate heat when energized). The intermediate heating rod 5 and the multiple peripheral heating rods 6 are electrically connected to the brush module mounted on the connecting shaft 8. The brush module is connected to an external power source and can stably provide power to the intermediate heating rod 5 and the multiple peripheral heating rods 6 during the rotation of the mounting frame 4. The brush module is existing technology and is now widely used, so it will not be described in detail in this utility model, nor is it shown in the accompanying drawings.

[0042] Example 2:

[0043] The cleaning assembly includes a scraper 11, which is made of an elastic material (such as elastic rubber). The scraper 11 is installed inside the tank 1, with its outer ring surface fitting against the inner side wall of the tank 1. The scraper 11 has through holes that are adapted to the central heating rod 5 and multiple peripheral heating rods 6. The upper end of the tank 1 is provided with an air inlet pipe 12, and the upper side of the scraper 11 is provided with a groove 13.

[0044] When asphalt needs to be discharged, open the electric valve inside the discharge port 3, and then pump air into the tank 1 through the air inlet pipe 12. This increases the air pressure inside the settling tank 13, allowing the scraper 11 to slide downwards stably and scrape off the asphalt from the inner wall of the tank 1, the middle heating rod 5, and the peripheral heating rod 6. This ensures that the asphalt inside the tank 1 can be discharged more thoroughly, preventing asphalt residue from adhering to the inner wall of the tank and the surface of the heating rods, which would reduce the service life of the equipment.

[0045] The scraper 11 is made of elastic rubber, which allows the scraper 11 to fit better against the lower side wall of the tank 1, ensuring that there are no dead corners in the cleaning.

[0046] Reinforcing rings 14 are fitted on the outer sides of the intermediate heating rod 5 and the peripheral heating rod 6. The reinforcing rings 14 are fixedly installed on the inner wall of the settling tank 13, which allows the scraper 11 to better clean the asphalt adhering to the intermediate heating rod 5 and the peripheral heating rod 6.

[0047] Inside the feed inlet 2, and on the inner wall of the tank body 1, there is a groove. Inside the groove, there is a spring plate 15. The spring plate 15 is made of spring steel sheet and has a protrusion. The protrusion is fixedly connected to the groove wall. The spring plate 15 presses against the groove wall under its own elastic force. The diameter of the spring plate 15 is larger than the inner diameter of the feed inlet 2. Under normal conditions, the spring plate 15 is pressed tightly against the inner wall of the groove by its own elastic force, sealing the feed inlet 2 channel. When feeding, the external pressure forces the spring plate 15 to flip inward and open. After feeding stops, the spring plate 15 automatically resets to prevent the backflow of high temperature asphalt vapor.

[0048] Meanwhile, as the scraper 11 moves downward, the air entering the tank 1 through the air inlet pipe 12 will not be discharged through the feed inlet 2, thus enabling the scraper 11 to move downward stably.

[0049] Example 3:

[0050] Based on Example 1, to further improve heating efficiency, a spiral heating wire 16 is pre-embedded inside the side wall of the tank 1 below the feed inlet 2. The heating wire 16 extends spirally around the circumference of the tank 1, and provides localized auxiliary heating to the asphalt in the feed inlet 2 area after being energized. The spiral arrangement of the heating wire 16 increases the heating contact area, further improving heating efficiency.

[0051] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A secondary heating device for SBS modified asphalt, characterized by, include: The tank (1) has an inlet (2) on the upper side wall and an outlet (3) on the lower side. A heating component is installed inside the tank (1) to dynamically heat the asphalt inside the tank (1); A cleaning assembly is slidably installed inside the tank (1) for cleaning the asphalt on the inner wall of the tank (1) and the heating assembly when the asphalt is discharged.

2. The SBS modified asphalt secondary heating device of claim 1, wherein, The heating component includes: Mounting bracket (4), which is installed inside the tank body (1); The intermediate heating rod (5) is fixedly installed at the center of the mounting bracket (4); Multiple peripheral heating rods (6) are fixedly installed on the mounting bracket (4) and distributed around the central heating rod (5). The intermediate heating rod (5) and the peripheral heating rod (6) are electric heating devices.

3. The SBS modified asphalt secondary heating device of claim 2, wherein, The mounting bracket (4) is rotatably mounted inside the tank (1) and is driven by a motor (7) mounted on the upper end face of the tank (1).

4. The SBS modified asphalt secondary heating device of claim 3, wherein, A connecting shaft (8) is fixedly connected to the mounting bracket (4). The upper end of the connecting shaft (8) passes through the tank body (1) and is fixedly connected to a driven gear (9). The driven gear (9) meshes with the driving gear (10) fixedly installed on the motor shaft of the motor (7). A brush module is installed on the connecting shaft (8). The intermediate heating rod (5) and multiple peripheral heating rods (6) are connected to the external power supply through the brush module.

5. The SBS modified asphalt secondary heating device of claim 4, wherein, The drive gear (10) is symmetrically provided with a support frame (17) above it. The support frame (17) is U-shaped, with its open end fixedly connected to the tank body (1) and its closed end supporting the motor (7).

6. The SBS modified asphalt secondary heating device of claim 2, wherein, The cleaning component includes: Scraper (11), the scraper (11) is installed inside the tank (1), and the outer ring surface of the scraper (11) is in contact with the inner side wall of the tank (1). The scraper (11) is provided with through holes that are compatible with the intermediate heating rod (5) and multiple peripheral heating rods (6). The upper end of the tank (1) is provided with an air inlet pipe (12), and the upper side of the scraper (11) is provided with a sink trough (13).

7. The SBS modified asphalt secondary heating device of claim 6, wherein, The outer sides of the intermediate heating rod (5) and the multiple peripheral heating rods (6) are provided with reinforcing rings (14), which are fixedly installed on the wall of the settling tank (13).

8. The SBS modified asphalt secondary heating device of claim 6, wherein, The feed inlet (2) is located on the inner side of the inner wall of the tank (1) and a groove is provided. A spring plate (15) is provided inside the groove. A protrusion is provided on the spring plate (15). The protrusion is fixedly connected to the groove wall. The spring plate (15) presses against the groove wall under its own elastic force. The diameter of the spring plate (15) is larger than the inner diameter of the feed inlet (2).

9. The SBS modified asphalt secondary heating device of claim 6, wherein, The scraper (11) is made of elastic material.

10. The SBS modified asphalt secondary heating device of claim 1, wherein, A threaded heating wire (16) is provided below the feed inlet (2) and inside the side wall of the tank body (1).

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