Bridge construction asphalt softening stirring device

Abstract

The utility model provides a kind of asphalt softening stirring device for bridge construction, it is related to asphalt processing technical field, including base, base top end is provided with electric annular turntable, electric annular turntable drive ring inside is provided with softening stirring mechanism, softening stirring mechanism is used to store asphalt and stirring auxiliary material;Softening stirring mechanism feed inlet one end is provided with heating mechanism, the utility model can be matched with the drainage hole of inner wall of inner tank feed inlet between outer tank and inner tank airflow cavity, when being sprayed fire heating to inner tank inside, the airflow generated makes the drainage hole produce negative pressure, and then extract airflow cavity internal gas flow, hot air flow enters airflow cavity inside from inner tank discharge port side, the heating temperature of the outer wall of inner tank is carried out, reduce the temperature difference in inner tank, improve the effect of asphalt softening mixing.

Description

Technical Field

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

[0002] During bridge construction, asphalt is needed for paving the bridge deck and filling gaps in the structure, which requires a large amount of asphalt. Asphalt production is generally accomplished using mixing equipment. Asphalt mixing equipment refers to equipment that mixes sand, gravel, fillers (such as stone powder), and asphalt particles in a certain proportion, and then heats and mixes them to form an asphalt mixture.

[0003] In existing technologies, asphalt softening mixing devices generally consist of a mixing drum and a heater. The heater provides hot airflow to the inside of the mixing drum, raising the temperature inside and melting the asphalt particles to coat the auxiliary materials, thus forming asphalt. However, in this method, the heating is mostly done by flame heating, resulting in rapid hot airflow and heat concentration in the middle of the mixing drum, making it difficult to fully exchange heat with the drum wall. This leads to a slow temperature rise at the inner wall of the mixing drum, easily causing uneven temperature distribution inside the drum, which affects the softening of the asphalt and reduces the effectiveness of the asphalt softening and mixing process. Therefore, we propose an asphalt softening mixing device for bridge construction. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing an asphalt softening and mixing device for bridge construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an asphalt softening and mixing device for bridge construction, comprising a base, an electric annular turntable at the top of the base, a softening and mixing mechanism inside the drive ring of the electric annular turntable, the softening and mixing mechanism being used to store asphalt and mixing additives; a heating mechanism being provided at one end of the feed inlet of the softening and mixing mechanism, the heating mechanism being used to heat the interior of the softening and mixing mechanism; and a filtering mechanism being provided at one end of the discharge outlet of the softening and mixing mechanism, the filtering mechanism being used to filter impurities in the flue gas.

[0006] Preferably, the softening and stirring mechanism includes an outer tank fixedly connected to the inside of an electric annular turntable drive ring, an inner tank is provided inside the outer tank, an airflow cavity is formed in the space between the outer tank and the inner tank, a reinforcing rib is connected between the inner wall of the outer tank and the outer wall of the inner tank, the reinforcing rib is spiral in shape, the reinforcing rib divides the space inside the airflow cavity to form a spiral channel, a drainage hole is opened on the inner wall of the inlet of the inner tank, the drainage hole is interconnected with the inside of the airflow cavity, and the side of the airflow cavity near the discharge port of the inner tank is connected to the external space of the outer tank.

[0007] Preferably, the inner tank discharge port extends from the outer tank to form a guide nozzle, and the inner tank inner wall is fixedly connected with a threaded stirring blade.

[0008] Preferably, the heating mechanism includes a mounting plate that fits onto one end of the inner tank inlet. A flamethrower is fixedly connected to one end of the mounting plate, and the flamethrower nozzle is located inside the inner tank inlet. A connecting frame is fixedly connected to the bottom end of the mounting plate, and an extension rod is rotatably connected to the bottom end of the connecting frame via a hinge. One end of the extension rod is fixedly connected to one side of the base.

[0009] Preferably, a support frame is fixedly connected to one side of the base, and a load-bearing rolling bearing is fixedly connected to the top of the support frame. The load-bearing rolling bearing is sleeved on the outer wall of the outer tank.

[0010] Preferably, the filtration mechanism includes a flow guide cap rotatably mounted on one end of the outer tank, a filter screen cylinder fixedly connected to one end of the flow guide cap, and a handle fixedly connected to one end of the filter screen cylinder.

[0011] Preferably, the diameter at the middle of the outer tank and the inner tank is greater than the diameter at both ends.

[0012] Preferably, the support frame is L-shaped as a whole, and the support frame and the base are an integral structure.

[0013] Beneficial effects:

[0014] 1. This utility model utilizes the airflow cavity between the outer and inner tanks, which, in conjunction with the drainage hole on the inner wall of the inner tank's inlet, allows the airflow generated during the flame heating of the inner tank to create negative pressure in the drainage hole. This draws gas from the airflow cavity, allowing the hot airflow to enter the airflow cavity from the inner tank's discharge port side, heating the outer wall of the inner tank, reducing temperature differences inside the inner tank, and improving the asphalt softening and mixing effect.

[0015] 2. This utility model features reinforcing ribs connecting the inner wall of the outer tank and the outer wall of the inner tank, which enhances the connection strength between the two tanks and prevents them from separating. The spiral-shaped reinforcing ribs also divide the space inside the airflow chamber into spiral channels, allowing the hot airflow to flow in a spiral pattern. This increases the flow path and residence time between the hot airflow and the outer wall of the inner tank, resulting in a more uniform temperature rise inside the inner tank and improved asphalt softening and mixing effects.

[0016] 3. This utility model uses an outer tank with a central diameter larger than the diameters at both ends and an inner tank. When the heater heats the inside of the inner tank, the hot airflow expands from one end of the inner tank to the middle of the inner tank, and is then compressed and discharged from the other end of the inner tank. This increases the residence time of the hot air inside the inner tank, thereby improving the heating efficiency inside the inner tank. Attached Figure Description

[0017] Figure 1 This is a first three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0019] Figure 3 A cross-sectional view of the softening stirring mechanism;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the heating mechanism;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the filtration mechanism.

[0022] Legend:

[0023] 1. Base; 2. Electric annular turntable; 3. Softening and stirring mechanism; 4. Heating mechanism; 5. Filtering mechanism; 6. Outer tank; 7. Inner tank; 8. Airflow chamber; 9. Reinforcing rib; 10. Drain hole; 11. Handle; 12. Feed guide nozzle; 13. Mounting plate; 14. Flamethrower; 15. Connecting frame; 16. Extension rod; 17. Support frame; 18. Load-bearing rolling bearing; 19. Threaded stirring blade; 20. Drain cover; 21. Filter screen cylinder. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0026] Reference Figures 1-5 An asphalt softening and mixing device for bridge construction includes a base 1, an electric annular turntable 2 at the top of the base 1, a softening and mixing mechanism 3 inside the drive ring of the electric annular turntable 2, the softening and mixing mechanism 3 for storing asphalt and mixing additives, a heating mechanism 4 at one end of the feed inlet of the softening and mixing mechanism 3 for heating the interior of the softening and mixing mechanism 3, and a filtering mechanism 5 at one end of the discharge outlet of the softening and mixing mechanism 3 for filtering impurities in the flue gas.

[0027] The electric annular turntable 2 at the top of the base 1 drives the softening and mixing mechanism 3 to rotate, thereby using the rotation of the softening and mixing mechanism 3 and its internal structure to mix the asphalt. The heating mechanism 4 set at one end of the feed port of the softening and mixing mechanism 3 can heat up the inside of the softening and mixing mechanism 3, thereby softening the asphalt and coating the auxiliary materials. The filter mechanism 5 set at one end of the discharge port of the softening and mixing mechanism 3 can filter the gas generated during the mixing and softening of the asphalt, avoiding the situation where asphalt or auxiliary materials splash out due to the influence of airflow, which would pollute and affect the construction environment.

[0028] like Figures 1-3 As shown, the softening and mixing mechanism 3 includes an outer tank 6 fixedly connected to the drive ring of the electric annular turntable 2. An inner tank 7 is disposed inside the outer tank 6. An airflow chamber 8 is formed between the outer tank 6 and the inner tank 7. The airflow chamber 8 is used for hot airflow to heat the inner tank 7, increasing its temperature and preventing the asphalt from sticking due to low inner wall temperature, which would affect the asphalt softening and mixing effect. A reinforcing rib 9 connects the inner wall of the outer tank 6 and the outer wall of the inner tank 7. The reinforcing rib 9 strengthens the connection between the outer tank 6 and the inner tank 7, preventing them from separating. The reinforcing rib 9 is spiral-shaped, dividing the space inside the airflow chamber 8 into a spiral channel. This spiral channel allows the hot airflow to flow in a spiral shape, increasing the contact area between the hot airflow and the outer wall of the inner tank 7, thus increasing the heating efficiency of the inner tank 7. The inner wall of the feed inlet of tank 7 is provided with a flow guide hole 10, which is connected to the interior of the airflow chamber 8. The side of the airflow chamber 8 near the discharge port of the inner tank 7 is connected to the external space of the outer tank 6. When the inner tank 7 is heated by flame, the airflow generated can create a negative pressure in the flow guide hole 10, thereby drawing gas from the airflow chamber 8 and driving the hot air to flow. The hot airflow enters the airflow chamber 8 from the discharge port of the inner tank 7. The discharge port of the inner tank 7 extends from the outer tank 6 to form a guide nozzle 12. The guide nozzle 12 can prevent material from entering the interior of the airflow chamber 8 during the discharge process. The inner wall of the inner tank 7 is fixedly connected with a threaded stirring blade 19. The threaded stirring blade 19 is connected to the internal structure of the concrete mixing drum. During the forward rotation of the inner tank 7, it can stir and mix the asphalt and other auxiliary materials. When it rotates in the reverse direction, it can discharge the asphalt and other auxiliary materials inside.

[0029] like Figure 2 and Figure 4As shown, the heating mechanism 4 includes a mounting plate 13 that fits against one end of the inlet of the inner tank 7. A flamethrower 14 is fixedly connected to one end of the mounting plate 13. The flamethrower 14 has its flame tube located inside the inlet of the inner tank 7. A connecting frame 15 is fixedly connected to the bottom end of the mounting plate 13. An extension rod 16 is rotatably connected to the bottom end of the connecting frame 15 via a hinge. One end of the extension rod 16 is fixedly connected to one side of the base 1. The top end of the extension rod 16 is connected to the connecting frame 15 via a hinge, which facilitates the movement of the mounting plate 13 by flipping it over, so that the flamethrower 14 can be removed from the inlet of the inner tank 7, making it easier to add raw materials. The hinge in the hinge connection method involved in this utility model is an existing device with a locking and limiting function, which will not be described in detail here.

[0030] like Figures 1-2 As shown, a support frame 17 is fixedly connected to one side of the base 1, and a load-bearing rolling bearing 18 is fixedly connected to the top of the support frame 17. The load-bearing rolling bearing 18 is sleeved on the outer wall of the outer tank 6. The load-bearing rolling bearing 18 fixedly connected to the top of the support frame 17 can provide support to the outer tank 6, thereby increasing the load-bearing capacity of the outer tank 6 and preventing the center of gravity of the outer tank 6 and the internal material from shifting, which would cause the outer tank 6 to tilt, thereby causing excessive lateral force on the electric annular turntable 2 and resulting in damage to the electric annular turntable 2.

[0031] like Figure 2 and Figure 5 As shown, the filtration mechanism 5 includes a flow guide cover 20 rotatably mounted on one end of the outer tank 6. A filter screen cylinder 21 is fixedly connected to one end of the flow guide cover 20, and a handle 11 is fixedly connected to one end of the filter screen cylinder 21. The flow guide cover 20 at one end of the outer tank 6 can cover the discharge port of the outer tank 6, and the filter screen cylinder 21 at one end of the flow guide cover 20 is used to filter the flue gas discharged from the outer tank 6.

[0032] like Figures 1-3 As shown, the diameter of the middle part of the outer tank 6 and the inner tank 7 is larger than the diameter of the two ends. When the inner tank 7 is heated, the hot air will extend to the middle of the inner tank 7 at one end, and then be compressed and discharged from the other end of the inner tank 7. This increases the residence time of the hot air inside the inner tank 7, thereby improving the heating efficiency inside the inner tank 7.

[0033] like Figures 1-2 As shown, the support frame 17 is L-shaped and is an integral structure with the base 1. The L-shaped support frame 17 and the base 1 support each other, which improves the stability and load-bearing strength of the base 1.

[0034] The working principle of this utility model is as follows: Asphalt and auxiliary materials are injected into the inner tank 7 through the inlet at one end. Then, the connecting frame 15, which is installed by a hinge at the top of the extension rod 16, is rotated so that the flame tube of the flamethrower 14 is inserted into the inlet of the inner tank 7. The electric annular turntable 2 is turned on, causing the outer tank 6 and the inner tank 7 to rotate. The threaded stirring blades 19 inside the inner tank 7 are used to stir and mix the asphalt and other auxiliary materials. Then, the flamethrower 14 is turned on, and the flame and high-temperature airflow generated by the flamethrower 14 enter the inner tank 7 to heat the inside of the inner tank 7 and soften the asphalt. During the heating process inside the inner tank 7, the flamethrower 14 brings in the high-temperature air from inside the inner tank 7. The flow will be discharged from the discharge port at the other end of the inner tank 7. During the flow of high temperature air, the guide hole 10 can generate negative pressure, thereby drawing the gas inside the airflow chamber 8 and driving the hot air flow. The hot air flow enters the airflow chamber 8 from the discharge port side of the inner tank 7 to heat the inner tank 7 and increase the temperature of the inner wall of the inner tank 7. Excess gas will be filtered through the filter screen 21 at one end of the discharge port of the inner tank 7 and discharged. After the asphalt softening and mixing is completed, the flamethrower 14 is turned off, the handle 11 is rotated to remove the guide cover 20 and the filter screen 21, and the electric annular turntable 2 is adjusted to rotate in the opposite direction to discharge the material inside the inner tank 7 through the guide nozzle 12 at one end of the discharge port.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An asphalt softening and mixing device for bridge construction, characterized in that: Includes a base (1), the top of which is provided with an electric annular turntable (2), the electric annular turntable (2) is driven by a softening and stirring mechanism (3) inside, the softening and stirring mechanism (3) is used to store asphalt and mixing additives; The softening and stirring mechanism (3) is provided with a heating mechanism (4) at one end of the feed inlet. The heating mechanism (4) is used to heat the inside of the softening and stirring mechanism (3). The softening and stirring mechanism (3) has a filter mechanism (5) at one end of its discharge port, which is used to filter impurities in the flue gas.

2. The asphalt softening and mixing device for bridge construction according to claim 1, characterized in that: The softening and stirring mechanism (3) includes an outer tank (6) fixedly connected to the drive ring of the electric annular turntable (2). An inner tank (7) is provided inside the outer tank (6). An airflow cavity (8) is formed in the space between the outer tank (6) and the inner tank (7). A reinforcing rib (9) is connected between the inner wall of the outer tank (6) and the outer wall of the inner tank (7). The reinforcing rib (9) is spiral in shape. The reinforcing rib (9) divides the space inside the airflow cavity (8) to form a spiral channel. A drainage hole (10) is provided on the inner wall of the feed inlet of the inner tank (7). The drainage hole (10) is connected to the inside of the airflow cavity (8). The side of the airflow cavity (8) near the discharge port of the inner tank (7) is connected to the external space of the outer tank (6).

3. The asphalt softening and mixing device for bridge construction according to claim 2, characterized in that: The discharge port of the inner tank (7) extends from the outer tank (6) to form a guide nozzle (12), and the inner wall of the inner tank (7) is fixedly connected with a threaded stirring blade (19).

4. The asphalt softening and mixing device for bridge construction according to claim 2, characterized in that: The heating mechanism (4) includes a mounting plate (13) attached to one end of the inlet of the inner tank (7). A flamethrower (14) is fixedly connected to one end of the mounting plate (13). The flamethrower (14) has its flame tube inside the inlet of the inner tank (7). A connecting frame (15) is fixedly connected to the bottom end of the mounting plate (13). An extension rod (16) is rotatably connected to the bottom end of the connecting frame (15) via a hinge. One end of the extension rod (16) is fixedly connected to one side of the base (1).

5. The asphalt softening and mixing device for bridge construction according to claim 2, characterized in that: A support frame (17) is fixedly connected to one side of the base (1), and a load-bearing rolling bearing (18) is fixedly connected to the top of the support frame (17). The load-bearing rolling bearing (18) is sleeved on the outer wall of the outer tank (6).

6. The asphalt softening and mixing device for bridge construction according to claim 2, characterized in that: The filtration mechanism (5) includes a flow guide cover (20) rotatably mounted on one end of the outer tank (6), a filter screen cylinder (21) is fixedly connected to one end of the flow guide cover (20), and a handle (11) is fixedly connected to one end of the filter screen cylinder (21).

7. The asphalt softening and mixing device for bridge construction according to claim 2, characterized in that: The diameter of the middle part of the outer tank (6) and the inner tank (7) is greater than the diameter of the two ends.

8. The asphalt softening and mixing device for bridge construction according to claim 5, characterized in that: The support frame (17) is L-shaped, and the support frame (17) and the base (1) are an integral structure.

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