Asphalt stirring device

Abstract

The asphalt stirring device comprises a tank body, a stirring mechanism, a scraping mechanism and an airflow stirring assembly, the stirring mechanism comprises a driver, a stirring shaft and stirring rods, the driver is arranged at the top of the tank body, the output end of the driver is connected with the stirring shaft, one ends of the stirring rods are arranged on the stirring shaft at intervals, and the other ends of the stirring rods are connected with the airflow stirring assembly. The scraping mechanism is arranged on the first fixing rod and comprises a connecting rod, a connecting shaft, a first fixing plate and a scraping plate, one end of the connecting rod is arranged on the first fixing rod, the two ends of the connecting shaft are riveted to the connecting rod through nuts, the scraping plate is detachably connected to the fixing plate, and the scraping plate abuts against the inner side wall of the tank body. And after the scraping plate is abraded, the nut at the top of the connecting shaft can be loosened firstly, the scraping plate is pushed to abut against the inner wall of the tank body, and then the nut is tightened again, so that the flexibility of actual use is greatly improved, and asphalt is prevented from being adhered to the inner wall of the tank body due to abrasion of the scraping plate.

Description

Technical Field

[0001] This utility model relates to the field of asphalt processing, and in particular to an asphalt mixing device. Background Technology

[0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a type of high-viscosity organic liquid, which often exists in the form of liquid or semi-solid petroleum. When mixed with mineral materials of different compositions, it can be used to build asphalt pavements with different structures.

[0003] When using asphalt, it needs to be mixed in a mixing tank. However, when using existing asphalt mixing equipment, the asphalt mixture tends to stick to the inner wall of the tank, accumulating over a long period of time, making it difficult to clean. The mixture also tends to cool and harden, affecting the processing progress and resulting in poor performance.

[0004] Currently, a Chinese utility model patent with patent application number "201921249435.4" and patent name "A Novel Asphalt Mixer" discloses a device including a support column, a tank supported on the support column, a feed pipe at one end of the tank extending upward, a discharge port at one end of the tank extending downward, a drive device fixed at one end of the tank extending upward, a rotating shaft at the output end of the drive device that penetrates into the inner cavity of the tank, multiple perforated plates on the rotating shaft, a scraper at the end of the perforated plate away from the rotating shaft, and the working end of the scraper contacting the inner wall of the tank.

[0005] The inventor believes that this design has two problems. First, although the solution can solve the problem of asphalt adhering to the inner wall of the tank by scraping it off with a scraper, the scraper will wear down after long-term operation, and the effect of scraping off asphalt will become worse and worse. Second, the actual mixing effect is very poor. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides an asphalt mixing device.

[0007] The asphalt mixing device provided by this utility model adopts the following technical solution:

[0008] An asphalt mixing device includes a tank, a mixing mechanism, a scraping mechanism, and an airflow mixing assembly. The mixing mechanism includes a driver, a mixing shaft, and mixing rods. The driver is located at the top of the tank, and its output end is connected to the mixing shaft. One end of each of the mixing rods is spaced apart on the mixing shaft, and the other end of each mixing rod is connected to a fixed rod. The scraping mechanism is located on the fixed rod and includes a connecting rod, a connecting shaft, a fixed plate, and a scraper. One end of the connecting rod is located on the fixed rod, and both ends of the connecting shaft are riveted to the connecting rod with nuts. The fixed plate is located on the connecting rod, and the scraper is detachably connected to the fixed plate, with the scraper abutting against the inner wall of the tank.

[0009] Optionally, a second fixing rod is provided at the bottom of the stirring shaft. One end of the second fixing rod is connected to the bottom of the first fixing rod. A downward scraping mechanism is also provided on the second fixing rod, and the scraper of the scraping mechanism abuts against the inner bottom wall of the tank.

[0010] Optionally, the airflow stirring assembly includes an air pump and an air pipe, the stirring shaft and the stirring rod are both hollow, the stirring rod is connected to the stirring shaft, the top of the stirring shaft is connected to the air pump through the air pipe, and the stirring rod is provided with several air jets.

[0011] Optionally, a heating mechanism is also included, which includes a heating cover, a power supply, and a heating copper tube. The heating cover is disposed outside the tank body and forms a partition between the heating cover and the tank body. The heating copper tube is disposed inside the partition. The power supply is disposed on the heating cover and connected to the heating copper tube. A heat-conducting medium is disposed inside the partition.

[0012] Optionally, the heating cover is provided with an insulation layer on the outside.

[0013] Optionally, a feeding port is provided on the top of the tank, and a feeding baffle is provided at the feeding port.

[0014] Optionally, a discharge port is provided at the bottom of the tank.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] 1. Ensure that the scraper is always in tight contact with the inner wall of the tank. When the scraper is worn, you can first loosen the nut at the top of the coupling, push the scraper to press against the inner wall of the tank, and then tighten the nut again. When the scraper is severely worn, the scraper can be removed from the fixing plate for replacement, which greatly improves the flexibility of actual use and prevents asphalt from adhering to the inner wall of the tank due to scraper wear.

[0017] 2. The hollow design of the mixing rod and the airflow mixing can achieve a more uniform mixing effect. The airflow enters the mixing tank through the hollow channel of the mixing rod, disperses the asphalt particles and promotes their movement in the mixing tank. This allows the asphalt to be better dispersed and mixed, achieving a uniform mixing effect. Furthermore, the airflow entering the mixing tank through the hollow channel of the mixing rod forms vortices or turbulence, increasing the mixing effect. This can reduce mixing time and improve production efficiency.

[0018] 3. By setting up a heating mechanism, the power supply can heat the heating copper tube. The heat-conducting medium inside the partition is usually water. By heating the asphalt, its temperature can be increased and its viscosity reduced, making it easier to flow and stir. An insulation layer is set on the outside of the heating cover. The insulation layer can effectively reduce heat loss and prevent the external environment from affecting the temperature of the asphalt inside the heating cover. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an asphalt mixing device.

[0020] Figure 2 This is a schematic diagram of a partially cut-open asphalt mixing plant.

[0021] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0022] Explanation of reference numerals in the attached drawings: 1. Tank body; 2. Stirring mechanism; 21. Driver; 22. Stirring shaft; 23. Stirring rod; 231. Jet nozzle; 3. Scraping mechanism; 31. Connecting rod; 32. Connecting shaft; 33. Fixed plate one; 34. Scraper; 4. Fixed rod one; 5. Fixed rod two; 6. Heating mechanism; 61. Heating cover; 62. Power supply; 63. Heating copper pipe; 64. Partition; 7. Insulation layer; 8. Feeding port; 9. Feed baffle; 10. Discharge port. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] This utility model discloses an asphalt mixing device. (Refer to...) Figure 1-3 An asphalt mixing device includes a tank 1, a mixing mechanism 2, a scraping mechanism 3, and an airflow mixing assembly. The mixing mechanism 2 includes a driver 21, a mixing shaft 22, and mixing rods 23. The driver 21 is located on the top of the tank 1, and its output end is connected to the mixing shaft 22. One end of several mixing rods 23 is spaced apart on the mixing shaft 22, and the other end of each mixing rod 23 is connected to a fixed rod 4. The scraping mechanism 3 is mounted on the fixed rod 4 and includes a connecting rod 31, a connecting shaft 32, a fixed plate 33, and a scraper 34. One end of the connecting rod 31 is mounted on the fixed rod 4, and both ends of the connecting shaft 32 are mounted on the fixed rod 4. The scraper 34 is riveted to the connecting rod 31 by a nut, and the fixing plate is set on the connecting rod 31. The scraper 34 is detachably connected to the fixing plate and abuts against the inner wall of the tank 1. This design ensures that the scraper 34 is always in tight contact with the inner wall of the tank 1. When the scraper 34 is worn, the nut at the top of the connecting shaft 32 can be loosened first, and the scraper 34 can be pushed to press against the inner wall of the tank 1. Then the nut can be tightened again. When the scraper 34 is severely worn, it can be removed from the fixing plate for replacement, which greatly improves the flexibility of actual use and prevents asphalt from adhering to the inner wall of the tank 1 due to the wear of the scraper 34.

[0027] A fixing rod 22 is provided at the bottom of the mixing shaft 22. One end of the fixing rod 25 is connected to the bottom of the fixing rod 1 4. A downward scraping mechanism 3 is also provided on the fixing rod 25. The scraper 34 of the scraping mechanism 3 abuts against the inner bottom wall of the tank 1. The scraping mechanism 3 is designed at the bottom so that the asphalt can be scraped off the inner wall of the tank 1 in an all-round way.

[0028] The airflow mixing assembly includes an air pump and an air pipe (not shown in the figure). Both the mixing shaft 22 and the mixing rod 23 are hollow. The mixing rod 23 is connected to the mixing shaft 22. The top of the mixing shaft 22 is connected to the air pump through the air pipe. Several air jets 231 are opened on the mixing rod 23. Through the hollow design of the mixing rod 23 and the airflow mixing, a more uniform mixing effect can be achieved. The airflow enters the mixing tank through the hollow channel of the mixing rod 23, disperses the asphalt particles and promotes their movement in the mixing tank. This allows the asphalt to be better dispersed and mixed, achieving a uniform mixing effect. Furthermore, the airflow enters the mixing tank through the hollow channel of the mixing rod 23, forming vortices or turbulence, increasing the mixing effect. This can reduce mixing time and improve production efficiency.

[0029] The tank body 1 also includes a heating mechanism 6, which includes a heating cover 61, a power supply 62, and a heating copper pipe 63. The heating cover 61 is located outside the tank body 1 and forms a partition 64 with the tank body 1. The heating copper pipe 63 is located inside the partition 64. The power supply 62 is located on the heating cover 61 and is connected to the heating copper pipe 63. A heat-conducting medium is provided inside the partition 64. By setting up the heating mechanism 6, the power supply 62 can heat the heating copper pipe 63. The heat-conducting medium inside the partition 64 is usually water. By heating the asphalt, its temperature can be increased and its viscosity reduced, making it easier to flow and stir. An insulation layer 7 is provided outside the heating cover 61. The insulation layer 7 can effectively reduce heat loss and prevent the external environment from affecting the temperature of the asphalt inside the heating cover 61.

[0030] The top of the tank 1 is equipped with a feeding port 8, and a feeding baffle 9 is installed at the feeding port 8 to facilitate the pouring of asphalt.

[0031] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An asphalt mixing device, characterized in that: The system includes a tank (1), a stirring mechanism (2), a scraping mechanism (3), and an airflow stirring assembly. The stirring mechanism (2) includes a driver (21), a stirring shaft (22), and stirring rods (23). The driver (21) is located on the top of the tank (1), and its output end is connected to the stirring shaft (22). One end of several stirring rods (23) is spaced apart on the stirring shaft (22), and the other end of each stirring rod (23) is connected to a fixing rod (4). The scraping mechanism... (3) The scraping mechanism (3) is set on the fixed rod (4). The scraping mechanism (3) includes a connecting rod (31), a connecting shaft (32), a fixed plate (33) and a scraper (34). One end of the connecting rod (31) is set on the fixed rod (4). Both ends of the connecting shaft (32) are riveted to the connecting rod (31) by nuts. The fixed plate is set on the connecting rod (31). The scraper (34) is detachably connected to the fixed plate. The scraper (34) abuts against the inner wall of the tank (1).

2. The asphalt mixing device according to claim 1, characterized in that: The bottom of the stirring shaft (22) is provided with a fixing rod two (5), one end of the fixing rod two (5) is connected to the bottom of the fixing rod one (4), and the fixing rod two (5) is also provided with a downward scraping mechanism (3), the scraper (34) of the scraping mechanism (3) abuts against the inner bottom wall of the tank (1).

3. The asphalt mixing device according to claim 1, characterized in that: The airflow stirring assembly includes an air pump and an air pipe. The stirring shaft (22) and the stirring rod (23) are both hollow. The stirring rod (23) is connected to the stirring shaft (22). The top of the stirring shaft (22) is connected to an air pump through an air pipe. The stirring rod (23) has several air jets (231).

4. The asphalt mixing device according to claim 1, characterized in that: It also includes a heating mechanism (6), which includes a heating cover (61), a power supply (62) and a heating copper tube (63). The heating cover (61) is disposed outside the tank body (1) and forms a partition (64) with the tank body (1). The heating copper tube (63) is disposed inside the partition (64). The power supply (62) is disposed on the heating cover (61) and connected to the heating copper tube (63). A heat-conducting medium is disposed inside the partition (64).

5. An asphalt mixing device according to claim 4, characterized in that: The heating cover (61) is provided with an insulation layer (7) on the outside.

6. An asphalt mixing device according to claim 1, characterized in that: The tank (1) is provided with a feeding port (8) at the top, and a feeding baffle (9) is provided at the feeding port (8).

7. An asphalt mixing device according to claim 1, characterized in that: The tank (1) is provided with a discharge port (10) at the bottom.

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