A mixing device for producing special bitumen

Abstract

This utility model discloses a mixing device for producing special asphalt, including a mixing tank, a top cover, and a rotating shaft. The top cover is rotatably connected to the top of the mixing tank via a first sealed bearing. A feed inlet is provided on the top of the top cover. A spherical block is fixedly fitted onto the side of the rotating shaft. This utility model utilizes an inclined rotating shaft that rotates around the spherical block in an inclined state. The rotation of the shaft drives the inclined stirring blades to rotate around the axis of the mixing tank, greatly improving the mixing efficiency. Simultaneously, the rotation of the stirring blades around the axis of the mixing tank, along with the conical toothed ring and connecting gear, drives the rotating shaft to rotate. This rotation, in turn, drives the stirring blades to rotate around the shaft, increasing the mixing shear force on the special asphalt. Combined with the rotation of the mixing tank driven by the gear, this further enhances the mixing effect on the special asphalt. This solves the problem that existing mixing devices using simple paddle mixers cannot quickly mix special asphalt, and insufficient mixing also affects the quality of the special asphalt.

Description

Technical Field

[0001] This utility model relates to the field of asphalt mixing technology, and in particular to a mixing device for producing special asphalt. Background Technology

[0002] Special asphalt is made from the residue after crude oil distillation through oxidation or solvent deasphalting processes. Its main components are asphaltenes, gums, and saturated / aromatic components. It is a black, viscous liquid or semi-solid. Special asphalt is made by adding polymers (SBS, SBR), rubber powder, resins, or nanomaterials to ordinary asphalt to improve its performance defects and meet the needs of special scenarios. Currently, the production of special asphalt, such as modified asphalt or high-viscosity asphalt, usually adopts a hot melt mixing process, which mainly includes raw material preheating, additive metering and addition, high-temperature stirring, and homogenization.

[0003] Specialty asphalt is produced through melt mixing. The core mixing device is mostly a vertical mixing tank, which is equipped with multiple layers of blades and uses a motor to drive material circulation. Simple mixing methods cannot quickly mix specialty asphalt, which increases the mixing time. Moreover, simple mixing methods also result in insufficient mixing of specialty asphalt, affecting its quality.

[0004] Therefore, how to provide a mixing device for producing special asphalt is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a mixing device for producing special asphalt. This invention solves the problem that existing mixing devices using simple paddle mixing cannot quickly mix special asphalt, and the insufficient mixing also affects the quality of the special asphalt.

[0006] A mixing device for producing special asphalt according to an embodiment of the present invention includes a mixing tank, a top cover, and a rotating shaft. The top cover is rotatably connected to the top of the mixing tank via a first sealed bearing. A feed inlet is provided on the top of the top cover. A spherical block is fixedly sleeved on the side of the rotating shaft, and the top cover is rotatably sleeved on the surface of the spherical block. The rotating shaft is inclinedly arranged inside the mixing tank, and a stirring blade is provided on the surface of the rotating shaft inside the mixing tank. A connecting frame is provided on the surface of both the mixing tank and the top cover. The mixing tank is stably placed on the ground via the connecting frame, and a discharge port is provided at the bottom of the mixing tank. The top cover is provided with a driving component, which is rotatably sleeved on the surface of the rotating shaft.

[0007] The tilt angle of the shaft is 20 degrees.

[0008] The drive assembly includes a drive motor, a drive gear, a fixed base, and a rotating gear. The drive motor is fixedly mounted on the top of the top cover with its output shaft facing upwards. The drive gear is fixedly connected to the output shaft end of the drive motor. The fixed base is fixedly connected to the top of the top cover. The rotating gear is rotatably connected to the top of the fixed base through a first bearing. The drive gear and the rotating gear mesh with each other. The rotating gear is rotatably sleeved on the surface of the rotating shaft located above the top cover through a second bearing.

[0009] A conical toothed ring is fixedly connected to the inner wall of the fixed base, and a connecting gear is fixedly sleeved on the side of the rotating shaft at the position corresponding to the conical gear. The connecting gear and the conical gear mesh with each other.

[0010] The connecting frame includes a rotating ring and a mounting frame. The mounting frame is fixedly connected to the top of the top cover, and the rotating ring is rotatably sleeved on the surface of the mixing tank through a second bearing. The side of the rotating ring is fixedly connected to the inner side of the mounting frame.

[0011] The top of the drive gear is provided with a first pulley, and the inner side of the mounting bracket is rotatably connected to the position of the first pulley. The top of the drive shaft is fixedly connected to a second pulley. The surfaces of the second pulley and the first pulley are movably fitted with connecting belts. The bottom of the drive shaft is provided with a driving gear. The side of the mixing tank is fixedly connected to the position of the driving gear, and the ring teeth mesh with the driving gear.

[0012] A scraper is fixedly connected to the bottom of the top cover at a position corresponding to the inner wall of the mixing tank, and the side of the scraper is movably connected to the inner wall of the mixing tank.

[0013] The beneficial effects of this utility model are:

[0014] By setting an inclined rotating shaft, which rotates around a spherical block in an inclined state, the rotation of the shaft drives the stirring blades to move synchronously. The inclined stirring blades rotate around the axis of the mixing tank, which greatly improves the mixing efficiency. At the same time, the rotating blades rotate around the axis of the mixing tank, and the shaft rotates on its own through the conical toothed ring and connecting gear. The rotation of the shaft on its own drives the stirring blades to rotate around the shaft, further increasing the mixing shear force on the special asphalt. Combined with the rotation of the mixing tank driven by the gear, the mixing effect on the special asphalt is further enhanced. This solves the problem that the existing mixing devices using simple paddle mixing cannot quickly mix special asphalt and the insufficient mixing also affects the quality of the special asphalt.

[0015] By installing a scraper, the scraper scrapes the inner wall of the mixing tank as the tank rotates, making it difficult for special asphalt to adhere to the inner wall of the mixing tank. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a mixing device for producing special asphalt, as proposed in this utility model.

[0018] Figure 2 This is a three-dimensional cross-sectional view of the rotating shaft and drive component positions in a mixing device for producing special asphalt, as proposed in this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram showing the connection state of the rotating shaft, drive motor, drive gear and mixing blade in a mixing device for producing special asphalt according to the present invention.

[0020] Figure 4 This is a three-dimensional cross-sectional view of the rotating shaft and conical toothed ring positions in a mixing device for producing special asphalt, as proposed in this utility model.

[0021] The attached diagram shows: 1. Mixing tank; 2. Top cover; 3. Rotating shaft; 4. Spherical block; 5. Stirring blade; 6. Connecting frame; 7. Feed inlet; 8. Drive assembly; 9. Drive motor; 10. Drive gear; 11. Fixed base; 12. Rotating gear; 13. Conical gear ring; 14. Connecting gear; 15. Rotating ring; 16. Mounting frame; 17. First pulley; 18. Drive shaft; 19. Second pulley; 20. Connecting belt; 21. Drive gear; 22. Ring gear; 23. Scraper. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] refer to Figure 1-4 In this embodiment, the system includes a mixing tank 1, a top cover 2, and a rotating shaft 3. The top cover 2 is rotatably connected to the top of the mixing tank 1 via a first sealed bearing. The top of the top cover 2 is provided with a feed inlet 7. A spherical block 4 is fixedly sleeved on the side of the rotating shaft 3. The top cover 2 is rotatably sleeved on the surface of the spherical block 4. The rotating shaft 3 is inclined inside the mixing tank 1 at an angle of 20 degrees. A stirring blade 5 is provided on the surface of the rotating shaft 3 inside the mixing tank 1. A connecting frame 6 is provided on the surface of both the mixing tank 1 and the top cover 2. The mixing tank 1 is stably placed on the ground via the connecting frame 6. A discharge port is provided at the bottom of the mixing tank 1.

[0024] The top cover 2 is provided with a driving assembly 8, which is rotatably sleeved on the surface of the rotating shaft 3. The driving assembly 8 includes a drive motor 9, a drive gear 10, a fixed seat 11, and a rotating gear 12. The drive motor 9 is fixedly installed on the top of the top cover 2 with its output shaft facing upward. The drive gear 10 is fixedly connected to the output shaft end of the drive motor 9. The fixed seat 11 is fixedly connected to the top of the top cover 2. The rotating gear 12 is rotatably connected to the top of the fixed seat 11 through a first bearing. The drive gear 10 and the rotating gear 12 mesh with each other. The rotating gear 12 is rotatably sleeved on the surface of the rotating shaft 3 located above the top cover 2 through a second bearing.

[0025] In practice, the drive motor 9 starts, which drives the drive gear 10 to rotate. The drive gear 10 rotates, which in turn drives the rotating gear 12 to rotate. The rotating gear 12 rotates, which in turn drives the inclined shaft 3 to rotate around the spherical block 4. The rotation of the shaft 3 around the spherical block 4 causes the spherical block 4 to rotate on the top cover 2. The rotation of the inclined shaft 3 causes the stirring blade 5 to rotate around the center of the mixing tank 1. Here, the stirring blade 5 does not rotate on its own; it rotates under the drive of the shaft 3. The shaft 3 does not rotate on its own either. In this way, the inclined shaft 3 and the inclined stirring blade 5 stir the special asphalt in the mixing tank 1, so that it is mixed quickly.

[0026] refer to Figure 1-4 In this embodiment, a conical toothed ring 13 is fixedly connected to the inner wall of the fixed base 11, and a connecting gear 14 is fixedly sleeved on the side of the rotating shaft 3 at the position corresponding to the conical gear. The connecting gear 14 meshes with the conical gear.

[0027] In specific operation, since the fixed seat 11 is stationary, the rotating shaft 3 rotates around the spherical block 4 instead of rotating on its own axis. Here, a connecting gear 14 is set on the surface of the rotating shaft 3 so that it meshes with the conical gear ring 13. Since the conical gear ring 13 is fixedly connected to the inner wall of the fixed seat 11 and does not move, the rotating shaft 3 will drive the connecting gear 14 to rotate synchronously when it rotates around the spherical block 4. Since the position of the connecting gear 14 will change when the rotating shaft 3 rotates, the connecting gear 14 will rotate on the conical gear ring 13 through the conical gear. The rotation of the connecting gear 14 will drive the rotating shaft 3 to rotate on its own axis. The rotation of the rotating shaft 3 will drive the mixing blade 5 to rotate around the rotating shaft 3. In this way, the mixing blade 5 rotates around the center of the mixing tank 1 and also rotates on its own axis, which further improves the mixing effect of the special asphalt.

[0028] refer to Figure 1-4In this embodiment, the connecting frame 6 includes a rotating ring 15 and a mounting frame 16. The mounting frame 16 is fixedly connected to the top of the top cover 2. The rotating ring 15 is rotatably sleeved on the surface of the mixing tank 1 through a second bearing. The side of the rotating ring 15 is fixedly connected to the inner side of the mounting frame 16. A first pulley 17 is provided on the top of the drive gear 10. A transmission shaft 18 is rotatably connected to the inner side of the mounting frame 16 corresponding to the position of the first pulley 17. A second pulley 19 is fixedly connected to the top of the transmission shaft 18. A connecting belt 20 is movably sleeved on the surfaces of the second pulley 19 and the first pulley 17. A driving gear 21 is provided at the bottom of the transmission shaft 18. A ring tooth 22 is fixedly connected to the side of the mixing tank 1 corresponding to the position of the driving gear 21. The ring tooth 22 meshes with the driving gear 21.

[0029] In practice, the mounting bracket 16 and the rotating ring 15 are both components used to stabilize the top cover 2 and the mixing tank 1. When the drive gear 10 rotates, it drives the first pulley 17 to rotate. The rotation of the first pulley 17 drives the second pulley 19 to rotate through the connecting belt 20. The rotation of the second pulley 19 drives the drive gear 21 to rotate through the drive shaft 18. The rotation of the drive gear 21 drives the mixing tank 1 to rotate on the top cover 2 and the rotating ring 15. The rotation of the mixing tank 1 drives the special asphalt to move, further driving the special asphalt to move and contact with the mixing blade 5, further increasing the mixing effect of the special asphalt.

[0030] refer to Figure 1-4 In this embodiment, a scraper 23 is fixedly connected to the bottom of the top cover 2 at a position corresponding to the inner wall of the mixing tank 1, and the side of the scraper 23 is movably connected to the inner wall of the mixing tank 1.

[0031] In practice, since the top cover 2 remains stationary while the mixing tank 1 rotates, the scraper 23 remains stationary. As the mixing tank 1 rotates, the scraper 23 scrapes off the special asphalt adhering to the inner wall of the mixing tank 1, thereby improving the cleanliness of the inner wall of the mixing tank 1 and avoiding the problem of special asphalt adhering to the inner wall of the mixing tank 1 and being difficult to clean.

[0032] The working principle of this utility model is as follows:

[0033] First, the start of the drive motor 9 drives the rotating shaft 3 to rotate around the spherical block 4 via the drive gear 10 and the transmission gear. Simultaneously, the rotating shaft 3 rotates around the spherical block 4, causing the stirring blades 5 to rotate around the center of the mixing tank 1 instead of rotating on their own axis. This tilting motion increases the mixing efficiency of the special asphalt. Furthermore, the conical toothed ring 13 drives the rotating shaft 3 to rotate on its own axis via the connecting gear 14. This rotation of the rotating shaft 3, in turn, causes the stirring blades 5 to rotate around the rotating shaft 3. Thus, the stirring blades 5 and the rotating shaft 3 not only rotate around the spherical block 4 but also rotate on their own axis, further enhancing the mixing of the special asphalt and improving the mixing efficiency. At the same time, the rotation of the drive gear 10 drives the gear 21 to rotate via the first pulley 17, the connecting belt 20, and the second pulley 19. The rotation of the gear 21 drives the ring gear 22 to rotate, which in turn drives the mixing tank 1 to rotate. The rotation of the mixing tank 1 causes the special asphalt inside to rotate, which, combined with the stirring of the stirring blades 5, greatly improves the mixing efficiency of the special asphalt.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mixing device for producing special asphalt, characterized in that, The mixture includes a mixing tank (1), a top cover (2), and a rotating shaft (3). The top cover (2) is rotatably connected to the top of the mixing tank (1) via a first sealed bearing. A feed inlet (7) is provided on the top of the top cover (2). A spherical block (4) is fixedly sleeved on the side of the rotating shaft (3). The top cover (2) is rotatably sleeved on the surface of the spherical block (4). The rotating shaft (3) is inclinedly arranged inside the mixing tank (1). A stirring blade (5) is provided on the surface of the rotating shaft (3) inside the mixing tank (1). A connecting frame (6) is provided on the surface of both the mixing tank (1) and the top cover (2). The mixing tank (1) is stably placed on the ground via the connecting frame (6). A discharge port is provided at the bottom of the mixing tank (1). The top cover (2) is provided with a driving component (8), which is rotated and sleeved on the surface of the rotating shaft (3).

2. The mixing device for producing special asphalt according to claim 1, characterized in that, The tilt of the shaft (3) is 20 degrees.

3. A mixing device for producing special asphalt according to claim 2, characterized in that, The drive assembly (8) includes a drive motor (9), a drive gear (10), a fixed seat (11), and a rotating gear (12). The drive motor (9) is fixedly installed on the top of the top cover (2) with its output shaft facing upward. The drive gear (10) is fixedly connected to the output shaft end of the drive motor (9). The fixed seat (11) is fixedly connected to the top of the top cover (2). The rotating gear (12) is rotatably connected to the top of the fixed seat (11) through a first bearing. The drive gear (10) and the rotating gear (12) mesh with each other. The rotating gear (12) is rotatably sleeved on the surface of the rotating shaft (3) located above the top cover (2) through a second bearing.

4. A mixing device for producing special asphalt according to claim 3, characterized in that, The inner wall of the fixed base (11) is fixedly connected with a conical toothed ring (13), and a connecting gear (14) is fixedly sleeved on the side of the rotating shaft (3) at the position corresponding to the conical gear. The connecting gear (14) meshes with the conical gear.

5. A mixing device for producing special asphalt according to claim 4, characterized in that, The connecting frame (6) includes a rotating ring (15) and a mounting frame (16). The mounting frame (16) is fixedly connected to the top of the top cover (2). The rotating ring (15) is rotatably sleeved on the surface of the mixing tank (1) through a second bearing. The side of the rotating ring (15) is fixedly connected to the inner side of the mounting frame (16).

6. A mixing device for producing special asphalt according to claim 5, characterized in that, The top of the drive gear (10) is provided with a first pulley (17). The inner side of the mounting bracket (16) is rotatably connected to the position of the first pulley (17). The top of the drive shaft (18) is fixedly connected to a second pulley (19). The surfaces of the second pulley (19) and the first pulley (17) are movably fitted with connecting belts (20). The bottom end of the drive shaft (18) is provided with a driving gear (21). The side of the mixing tank (1) is fixedly connected to the position of the driving gear (21). The ring tooth (22) meshes with the driving gear (21).

7. A mixing device for producing special asphalt according to claim 6, characterized in that, A scraper (23) is fixedly connected to the bottom of the top cover (2) at the position corresponding to the inner wall of the mixing tank (1), and the side of the scraper (23) is movably connected to the inner wall of the mixing tank (1).

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