Modified asphalt premixing kettle

Abstract

The utility model relates to the technical field of asphalt processing, and discloses a modified asphalt premixing kettle which comprises a kettle body, the top of the kettle body is in threaded connection with an end cover, a first motor is fixedly installed in the middle of the top of the end cover, a driving rod is arranged at the bottom of the first motor, an assembly plate is fixedly installed at the bottom of the driving rod, and the assembly plate is fixedly connected with the top of the kettle body. A plurality of stirring rods are fixedly mounted at the bottom of the assembly plate, a second motor is fixedly mounted in the middle of the bottom of the kettle body, a rotating shaft is arranged at the top of the second motor, and a spiral conveying plate is fixedly mounted on the surface of the rotating shaft. Through the structural design of the first motor, the driving rod, the assembly plate, the stirring rod, the second motor, the rotating shaft and the spiral conveying plate, the multi-dimensional stirring function is realized, so that a shearing force and a convection effect can be generated on asphalt during rotation, and the asphalt and ingredients are ensured to be more comprehensively mixed in the inner cavity of the kettle body.

Description

Technical Field

[0001] This utility model relates to the field of asphalt processing technology, and more specifically, to a modified asphalt premixing kettle. Background Technology

[0002] With the rapid growth of highway construction in my country, road transport has become increasingly busy. Rutting, cracking, potholes, and other defects in asphalt pavements are severe. To comprehensively improve the performance of asphalt pavements, the use of modified asphalt is one effective measure. Currently, the most commonly used modified asphalts include SBR, PE, EVA, rubber powder, and SBS. SBS, due to its excellent bidirectional modification properties (i.e., the ability to simultaneously change the high-temperature and low-temperature properties of the base asphalt), has been widely used in recent years. SBS modified asphalt is prepared using styrene-butadiene-styrene block copolymer (SBS) as a modifier. Through a physical blending process, SBS adsorbs aromatic hydrocarbons and resins from the asphalt, undergoing swelling to form a new colloidal structure system, i.e., forming a network structure within the asphalt, thus comprehensively improving the performance of the asphalt.

[0003] Commercially available modified asphalt premixing kettles typically use a single stirring rod to mix the asphalt. When the asphalt is mixed with the ingredients, the asphalt inside the kettle is pulled by the stirring rod and tends to form a flow pattern that follows the rotation of the stirring rod. As a result, the mixing area is mainly concentrated around the stirring rod, while the asphalt in areas far from the stirring rod may not be fully mixed. Consequently, it takes a long time for the asphalt and ingredients to be fully mixed, especially in hard-to-reach areas such as the bottom and corners of the kettle, where ingredients may accumulate or the asphalt may not completely coat the ingredients. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a modified asphalt premixing kettle, which has the advantages of improving mixing efficiency and uniformity.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modified asphalt premixing kettle, comprising a kettle body, an end cap threadedly connected to the top of the kettle body, a first motor fixedly installed at the middle part of the top of the end cap, a drive rod provided at the bottom of the first motor, an assembly plate fixedly installed at the bottom of the drive rod, a plurality of stirring rods fixedly installed at the bottom of the assembly plate, a second motor fixedly installed at the middle part of the bottom of the kettle body, a rotating shaft provided at the top of the second motor, and a spiral conveying plate fixedly installed on the surface of the rotating shaft.

[0006] As a preferred embodiment of this utility model, a feed pipe is fixedly installed on one side of the top of the end cap, and a scraper is fixedly installed on the bottom of the stirring rod.

[0007] As a preferred embodiment of this utility model, an L-tube is fixedly installed on one side of the top of the reactor body, a material collection hopper is fixedly installed on the top of the L-tube, and a discharge pipe is fixedly installed at the bottom of the other side of the reactor body.

[0008] As a preferred embodiment of this utility model, a slot is provided at the top of the discharge pipe, and a sealing plate is movably installed inside the slot.

[0009] As a preferred embodiment of this utility model, a base is fixedly installed at the bottom of the vessel body, a limiting plate is fixedly installed at the top edge of the base, and a plurality of heating rods are fixedly installed inside the limiting plate.

[0010] As a preferred embodiment of this utility model, a bearing is provided at the top of the rotating shaft, and the bearing is fixedly connected to the assembly plate.

[0011] As a preferred embodiment of this utility model, a plurality of support legs are fixedly installed at the bottom of the base, and a positioning plate is fixedly installed at the bottom of each support leg.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the structural design of a first motor, drive rod, assembly plate, stirring rod, second motor, rotating shaft, and spiral conveying plate, and through the cooperation between the structures, achieves a multi-dimensional stirring function. This can generate shear force and convection effect on the asphalt during rotation, thereby ensuring that the asphalt and ingredients are more thoroughly mixed in the inner cavity of the reactor. At the same time, the cooperation between the stirring rod and the spiral stirrer forms a complementary stirring effect, making the stirring process more efficient.

[0014] 2. This utility model achieves the function of cleaning the inner wall of the bottom of the vessel by setting up a scraper. This can be used in conjunction with the spiral conveyor plate to clean and discharge the asphalt at the bottom of the vessel, thereby ensuring the cleanliness of the inner wall of the bottom of the vessel. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model from below;

[0018] Figure 4 This is a cross-sectional planar structural diagram of the present invention;

[0019] Figure 5 This is an enlarged structural diagram of the base of this utility model.

[0020] In the diagram: 1. Kettle body; 2. End cover; 3. First motor; 4. Drive rod; 5. Assembly plate; 6. Stirring rod; 7. Second motor; 8. Rotary shaft; 9. Screw conveyor plate; 10. Feed pipe; 11. Scraper; 12. L-tube; 13. Collection hopper; 14. Discharge pipe; 15. Slot; 16. Sealing plate; 17. Base; 18. Limiting plate; 19. Heating rod; 20. Bearing; 21. Support leg; 22. Positioning plate. 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] like Figures 1 to 5 As shown, this utility model provides a modified asphalt premixing kettle, including a kettle body 1. The top of the kettle body 1 is threadedly connected to an end cover 2. A first motor 3 is fixedly installed in the middle part of the top of the end cover 2. A drive rod 4 is provided at the bottom of the first motor 3. An assembly plate 5 is fixedly installed at the bottom of the drive rod 4. Several stirring rods 6 are fixedly installed at the bottom of the assembly plate 5. A second motor 7 is fixedly installed in the middle part of the bottom of the kettle body 1. A rotating shaft 8 is provided at the top of the second motor 7. A spiral conveying plate 9 is fixedly installed on the surface of the rotating shaft 8.

[0023] The system achieves multi-dimensional mixing through the cooperation of the first motor 3, drive rod 4, assembly plate 5, stirring rod 6, second motor 7, rotating shaft 8, and spiral conveyor plate 9. This generates shear force and convection on the rotating asphalt, ensuring that the asphalt and ingredients are more thoroughly mixed in the inner cavity of the reactor body 1. At the same time, the cooperation between the stirring rod 6 and the spiral agitator 9 creates a complementary mixing effect, making the mixing process more efficient.

[0024] A feed pipe 10 is fixedly installed on one side of the top of the end cap 2, and a scraper 11 is fixedly installed on the bottom of the stirring rod 6.

[0025] The scraper 11 is used to clean the bottom inner wall of the vessel body 1, which can be used in conjunction with the spiral conveyor plate 9 to clean and discharge the asphalt at the bottom of the vessel body 1, thereby ensuring the cleanliness of the bottom inner wall of the vessel body 1.

[0026] An L-tube 12 is fixedly installed on one side of the top of the vessel body 1, a collection hopper 13 is fixedly installed on the top of the L-tube 12, and a discharge pipe 14 is fixedly installed at the bottom of the other side of the vessel body 1.

[0027] The L-pipe 12 and the collection hopper 13 facilitate the limiting and guidance of the asphalt, allowing it to enter the inner cavity of the reactor body 1 stably and preventing the filter asphalt from splashing into the surrounding environment during the transportation process.

[0028] A slot 15 is provided at the top of the discharge pipe 14, and a sealing plate 16 is movably installed inside the slot 15.

[0029] The slot 15 and sealing plate 16 facilitate the quick closure of the inner cavity of the reactor body 1, thereby ensuring temperature control of the inner cavity of the reactor body 1 during asphalt processing.

[0030] A base 17 is fixedly installed at the bottom of the vessel body 1, and a limiting plate 18 is fixedly installed at the top edge of the base 17. Several heating rods 19 are fixedly installed inside the limiting plate 18.

[0031] The base 17 and the limiting plate 18 facilitate the limiting of the reactor body 1, thereby ensuring the stability of the device during asphalt processing and increasing the safety of the device. The heating rod 19 facilitates the heating of the reactor body 1, thereby helping to accelerate the heating process of the mixture in the modified asphalt premix reactor.

[0032] A bearing 20 is provided on the top of the rotating shaft 8, and the bearing 20 is fixedly connected to the mounting plate 5.

[0033] The bearing 20 provides stable support and limit for the rotating shaft 8, thereby ensuring the stability of the spiral conveyor plate 9 during rotation and ensuring that the asphalt can be effectively subjected to shear force and convection.

[0034] Several support legs 21 are fixedly installed on the bottom of the base 17, and positioning plates 22 are fixedly installed on the bottom of the support legs 21.

[0035] The support legs 21 and positioning plate 22 provide stable support for the base 17, preventing the device from shaking or shifting during use, thereby improving the overall stability of the device.

[0036] The working principle and usage process of this utility model are as follows: When using this device, the asphalt is limited by the collection hopper 13, and the asphalt enters the inner cavity of the reactor body 1 through the L-pipe 12. The reactor body 1 is heated by the heating rod 19. The first motor 3 and the second motor 7 are started. The first motor 3 drives the assembly plate 5 to rotate through the drive rod 4. The assembly plate 5 drives the stirring rod 6 to stir the asphalt. The feed pipe 10 adds the ingredients, which enter the inner cavity of the reactor body 1 and come into contact with the asphalt. The stirring rod 6 mixes the asphalt with the ingredients. The second motor 7 drives the spiral conveyor plate 9 to rotate through the rotating shaft 8. The drive rod 4 and the rotating shaft 8 rotate in opposite directions. The spiral conveyor plate 9 generates a reverse rotational force on the asphalt, which causes a violent disturbance to the asphalt during rotation. At the same time, its spiral shape drives the asphalt at the bottom to flip upward, ensuring that the asphalt can come into contact with the ingredients. The mixed asphalt is released from the reactor body 1 through the discharge pipe 14. The spiral conveyor plate 9, in conjunction with the scraper 11, cleans the asphalt remaining on the inner wall of the bottom of the reactor body 1.

[0037] 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.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modified asphalt premix kettle comprising a kettle body (1), characterized in that: The top of the kettle body (1) is threadedly connected with an end cover (2), the middle part of the top of the end cover (2) is fixedly installed with a first motor (3), the bottom of the first motor (3) is provided with a driving rod (4), the bottom of the driving rod (4) is fixedly installed with an assembly plate (5), the bottom of the assembly plate (5) is fixedly installed with a plurality of stirring rods (6), the middle part of the bottom of the kettle body (1) is fixedly installed with a second motor (7), the top of the second motor (7) is provided with a rotating shaft (8), and the surface of the rotating shaft (8) is fixedly installed with a spiral conveying plate (9).

2. The modified bitumen premix kettle of claim 1, wherein: The top of the end cover (2) is fixedly installed with a feeding pipe (10) on one side, and the bottom of the stirring rod (6) is fixedly installed with a scraper (11).

3. The modified bitumen premix kettle of claim 1, wherein: The top of the kettle body (1) is fixedly installed with an L-shaped pipe (12) on one side, the top of the L-shaped pipe (12) is fixedly installed with a material collecting hopper (13), and the bottom of the other side of the kettle body (1) is fixedly installed with a discharging pipe (14).

4. The modified bitumen premix kettle of claim 3, wherein: The top of the discharging pipe (14) is provided with a clamping groove (15), and the sealing plate (16) is movably installed in the clamping groove (15).

5. The modified bitumen premix kettle of claim 1, wherein: The bottom of the kettle body (1) is fixedly installed with a base (17), the top edge of the base (17) is fixedly installed with a limiting plate (18), and the inside of the limiting plate (18) is fixedly installed with a plurality of heating rods (19).

6. The modified bitumen premix kettle of claim 1, wherein: The top of the rotating shaft (8) is provided with a bearing (20), and the bearing (20) is fixedly connected with the assembly plate (5).

7. The modified bitumen premix kettle of claim 5, wherein: The bottom of the base (17) is fixedly installed with a plurality of supporting legs (21), and the bottom of the supporting leg (21) is fixedly installed with a positioning plate (22).

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