Hot mixing machine for producing oil-based asphalt warm mixing agent

Abstract

The utility model discloses a hot mixer for producing an oil-based asphalt warm mixing agent, which belongs to the technical field of hot mixing of the oil-based asphalt warm mixing agent and comprises a support, a moving wheel, a mixing control box, a hand wheel, a U-shaped frame and a mixing drum, the moving wheel is positioned at the lower end of the support, the mixing control box and the hand wheel are mounted on the side wall of the support, the hand wheel penetrates through the support and is connected with the U-shaped frame, and the U-shaped frame is connected with the mixing drum. The mixing drum is mounted in the U-shaped frame; a heating control box is mounted on the U-shaped frame, and a wiring ring sleeved with the stirring barrel is arranged on the U-shaped frame. The stirring assembly plays a key role in the whole process. A mixture in the stirring cavity can be pushed into the flowing cavity and enters the heating cavity to be heated again. And through continuous pushing and circulation, the heated mixture is pushed back to the stirring cavity, so that the circular flow of the mixture in the stirring barrel is realized. The circular flow not only improves the hot mixing efficiency, but also ensures the uniformity and consistency of the mixture in the stirring process.

Description

Technical Field

[0001] The utility model relates to the technical field of hot mixing of oil-based asphalt warm mix agents, in particular to a hot mixer used for producing oil-based asphalt warm mix agents. Background Art

[0002] Oil-based warm mix asphalt is a new type of asphalt additive. Based on the theory of interfacial chemistry, the hydrophilic group of the surfactant captures trace moisture on the surface of the stone, produces a lubricating effect between the asphalt films, and thus enhances the asphalt's ability to coat the stone. Compared with traditional hot mix asphalt, oil-based warm mix asphalt can reduce the production, paving and compaction temperature of asphalt mixture by 30°C or more, significantly improving construction efficiency and extending the construction season.

[0003] In the process of heating asphalt, the uniformity of the temperature distribution of the hot mixer is crucial. Uneven heating may cause some parts of the asphalt to be overheated while other parts are underheated, which makes the mixing between the asphalt and the warm mix agent inadequate. Some asphalt may react prematurely due to excessive temperature, while other parts cannot be fully integrated with the warm mix agent due to insufficient temperature. This uneven mixing not only affects the performance and quality of warm mix asphalt, making it unable to meet engineering requirements, but may also lead to reduced production efficiency, extended production cycle, increased production costs, and even affect the progress of the project.

[0004] Therefore, in order to ensure the effective application of oil-based asphalt warm mix and improve construction efficiency, the temperature control and mixing uniformity of the hot mixer are crucial. This requires operators to have superb skills and rich experience to cope with the challenges that may arise in the actual production process. Utility Model Content

[0005] The main purpose of the utility model is to provide a hot mixer for producing oil-based asphalt warm mix agent, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A hot mixer for producing oil-based asphalt warm mix agent, comprising a bracket, a moving wheel, a stirring control box, a hand wheel, a U-shaped frame and a stirring drum, wherein the moving wheel is located at the lower end of the bracket, the stirring control box and the hand wheel are installed on the side wall of the bracket, the hand wheel passes through the bracket and is connected to the U-shaped frame, and the stirring drum is installed in the U-shaped frame;

[0008] A heating control box is installed on the U-shaped frame, and a wiring ring for sleeve-mounting a mixing drum is provided on the U-shaped frame. A partition is provided on one side of the mixing drum, and the partition divides the inner cavity of the mixing drum into a heating cavity, a mixing cavity and a flow cavity. The flow cavity is located between the partition and the bottom of the mixing drum, and the oil-based asphalt warm mix agent in the mixing cavity flows to the heating cavity for heating;

[0009] A fixed tube is provided at the other end of the bracket, and a bearing assembly is provided at the inner end of the fixed tube. The round tube of the U-shaped frame is inserted into the bearing assembly. A servo motor is connected to the outer end of the fixed tube, and the output end of the servo motor extends to the mixing drum and is connected to the mixing assembly. The servo motor drives the mixing assembly to rotate and drives the oil-based asphalt warm mix agent to flow into the flow chamber, and then flows back to the mixing chamber from the upper end of the heating chamber. The hand wheel drives the mixing drum to rotate and discharge through the U-shaped frame.

[0010] In the preferred embodiment of the present application, a bearing device is provided at the connection between the bracket and the handwheel, the handwheel and the U-shaped frame are fixed by bolts, the U-shaped frame and the wiring ring are fixed by bolts, and a wiring hole is provided on the inner wall of the wiring ring;

[0011] In the preferred embodiment of the present application, the wires of the heating control box are inserted into the wiring loop, arranged along the wiring loop, and then extended from the wiring loop and connected to the heater in the mixing drum;

[0012] In a preferred embodiment of the present application, the partition is welded on the inner wall of the mixing drum, the mixing assembly includes a mixing rod and a mixing blade, the mixing blade is arranged on the mixing rod, the mixing rod is connected to the output end of the servo motor by a bolt, the other end of the mixing rod is mounted on the partition, and the mixing rod, the mixing drum and the partition are mechanically sealed;

[0013] In the preferred embodiment of the present application, flanges are provided at both ends of the fixed tube, which are connected to the bearing assembly by bolts, a U-shaped frame is arranged between the hand wheel and the bearing assembly, and the fixed tube is connected to the servo motor by bolts;

[0014] In the preferred embodiment of the present application, the mixing drum is fixed to the U-shaped frame by bolts, and the tipping is restricted by a wiring ring.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, the design of the heating chamber is crucial because it ensures that the oil-based asphalt warm mix agent can be evenly heated during the mixing process. Through the function of the heating chamber, the heat can be quickly and evenly transferred to the warm mix agent in the mixing chamber, thereby avoiding the problem of local overheating or uneven heating. This design not only improves the mixing efficiency, but also ensures the quality of the warm mix agent.

[0017] In order to further optimize the process and improve production efficiency, the interior of the mixing drum is divided into three independent functional areas: heating chamber, stirring chamber and flow chamber. This partition design allows each area to play its unique role without interfering with each other. The heating chamber is responsible for providing uniform heat, the stirring chamber is responsible for stirring the mixture, and the flow chamber plays a role in connection and circulation.

[0018] The stirring assembly plays a key role in the whole process. It can push the mixture in the stirring chamber into the flow chamber and allow it to enter the heating chamber for reheating. Through continuous pushing and circulation, the heated mixture is pushed back into the stirring chamber, realizing the circulation of the mixture in the mixing barrel. This circulation not only improves the efficiency of hot mixing, but also ensures the uniformity and consistency of the mixture during the stirring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a diagram showing the overall structure of the utility model;

[0021] Figure 3 This is a diagram showing the stirring assembly, stirring drum and partition of the utility model;

[0022] Figure 4 This is a front cross-sectional view of the mixing drum and partition of the utility model.

[0023] In the figure: 1. bracket; 2. moving wheel; 3. stirring control box; 4. hand wheel; 5. U-shaped frame; 6. stirring drum; 7. heating control box; 8. wiring ring; 9. partition; 10. stirring assembly; 11. servo motor; 12. fixed tube; 13. bearing assembly; 14. heating chamber; 15. flow chamber; 16. stirring chamber. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1 - Figure 4As shown, a hot mixer for the production of oil-based asphalt warm mix agent mainly includes the following components: a bracket 1 is the main structure of the whole equipment, providing support and installation foundation; a moving wheel 2 is located at the lower end of the bracket 1, which is convenient for the movement and positioning of the equipment; a stirring control box 3 is used to control the key parameters of the stirring process; a hand wheel 4 is installed on the side wall of the bracket 1, and the rotation speed and direction of the stirring drum 6 can be adjusted by turning; a U-shaped frame 5 connects the hand wheel 4 and the stirring drum 6 to ensure the stable rotation of the stirring drum 6; a partition 9 is provided inside the stirring drum 6, which divides the drum into a heating chamber 14, a stirring chamber 16 and a flow chamber 15, which are used for heating and stirring the oil-based asphalt warm mix agent. Mixing; the heating control box 7 is used to control the heating process in the heating chamber 14; the wiring ring 8 is sleeved on the mixing drum 6, and is used to organize and fix the wires of the heating control box 7; the partition 9 divides the inside of the mixing drum 6 into different areas to achieve heating and mixing of the oil-based asphalt warm mix agent; the fixed pipe 12 is provided at the other end of the bracket 1 for supporting and installing the servo motor 11 and the bearing assembly 13; the bearing assembly 13 is installed at the inner end of the fixed pipe 12, and cooperates with the round pipe of the U-shaped frame 5 to ensure the smooth rotation of the mixing drum 6; the servo motor 11 is connected to the stirring assembly 10 through the output end to drive the oil-based asphalt warm mix agent in the mixing drum 6 to stir;

[0026] The stirring assembly 10 includes a stirring rod and a stirring blade, which are used to stir and push the oil-based asphalt warm mix agent; in addition, a bearing device is provided at the connection between the bracket 1 and the handwheel 4 to ensure smooth rotation; the U-shaped frame 5 and the wiring ring 8 and the stirring drum 6 are all fixed by bolts to ensure the stability and safety of the structure; the wires of the heating control box 7 are arranged through the wiring ring 8 and connected to the heater in the stirring drum 6 to realize the heating function; flanges are provided at both ends of the fixed pipe 12, which are connected to the bearing assembly 13 by bolts to ensure the stability of the installation.

[0027] The entire hot mixer drives the stirring assembly 10 to rotate through the servo motor 11, so that the oil-based asphalt warm mix agent is evenly heated and stirred in the mixing drum 6, and then the rotation speed and direction are controlled by the hand wheel 4. Finally, the heating process is controlled by the heating control box 7 to complete the production of the oil-based asphalt warm mix agent.

[0028] Working process: First, move the hot mixer to the predetermined working position. The moving wheel 2 can be used to easily move the device to the desired position, and then the moving wheel 2 can be locked or other fixed methods can be used to ensure that the device is stable and motionless; the initial rotation speed and direction of the mixing drum 6 are set through the mixing control box 3. At the same time, the heating control box 7 is activated to prepare to heat the heating chamber 14; the servo motor 11 is connected to the mixing assembly 10 through the output end to start driving the mixing drum 6 to rotate. At the same time, the heating control box 7 sends a command to the heater to start heating the heating chamber 14; the oil-based asphalt warm mix agent to be treated is added to the mixing chamber 16 of the mixing drum 6; as the mixing drum 6 rotates, the stirring rod and stirring blades in the stirring assembly 10 start to work to stir the oil-based asphalt warm mix agent. At the same time, the heating function of the heating chamber 14 enables the warm mix agent in the mixing chamber 16 to be evenly heated; through the hand wheel 4, the operator can adjust the rotation speed and direction of the mixing drum 6 as needed to ensure that the oil-based asphalt warm mix agent obtains the best mixing effect; during the entire mixing and heating process, the operator needs to constantly monitor the situation in the mixing drum 6, and make necessary adjustments to the mixing and heating process through the mixing control box 3 and the heating control box 7; when the oil-based asphalt warm mix agent reaches the predetermined mixing and heating effect, the operator stops the servo motor 11 and discharges the processed warm mix agent from the flow chamber 15 through a specific discharge mechanism or opening; after the production is completed, the equipment needs to be cleaned and maintained to ensure its continuous and stable operation. This includes cleaning the mixing drum 6 and other related parts, checking the wear of each part, and performing necessary maintenance and replacement; the hot mixer completes the production process of the oil-based asphalt warm mix agent, ensuring uniform heating and mixing of the product, thereby meeting the production requirements.

[0029] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0030] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A hot mixer for producing oil-based asphalt warm mix agent, comprising a support (1), a moving wheel (2), a stirring control box (3), a hand wheel (4), a U-shaped frame (5) and a stirring drum (6), wherein the moving wheel (2) is located at the lower end of the support (1), the stirring control box (3) and the hand wheel (4) are mounted on the side wall of the support (1), the hand wheel (4) passes through the support (1) and is connected to the U-shaped frame (5), and the stirring drum (6) is mounted in the U-shaped frame (5), characterized in that: A heating control box (7) is installed on the U-shaped frame (5), and a wiring ring (8) for sleeve-mounting a mixing drum (6) is provided on the U-shaped frame (5). A partition (9) is provided on one side of the mixing drum (6). The partition (9) divides the inner cavity of the mixing drum (6) into a heating cavity (14), a mixing cavity (16) and a flow cavity (15). The flow cavity (15) is located between the partition (9) and the bottom of the mixing drum (6) and allows the oil-based asphalt warm mix agent in the mixing cavity (16) to flow into the heating cavity (14) for heating. The other end of the bracket (1) is provided with a fixed tube (12), and the inner end of the fixed tube (12) is provided with a bearing assembly (13). The round tube of the U-shaped frame (5) is inserted into the bearing assembly (13). The outer end of the fixed tube (12) is connected to a servo motor (11), and the output end of the servo motor (11) extends to the mixing drum (6) and is connected to a mixing assembly (10). The servo motor (11) drives the mixing assembly (10) to rotate and drives the oil-based asphalt warm mix agent to flow into the flow chamber (15), and then flows back from the upper end of the heating chamber (14) to the mixing chamber (16). The hand wheel (4) drives the mixing drum (6) to rotate and discharge materials through the U-shaped frame (5).

2. A hot mixer for producing oil-based asphalt warm mix agent according to claim 1, characterized in that: A bearing device is provided at the connection between the bracket (1) and the hand wheel (4); the hand wheel (4) and the U-shaped frame (5) are fixed by bolts; the U-shaped frame (5) and the wiring ring (8) are fixed by bolts; and a wiring hole is provided on the inner wall of the wiring ring (8).

3. A hot mixer for producing oil-based asphalt warm mix according to claim 2, characterized in that: The wires of the heating control box (7) are inserted into the wiring ring (8), arranged along the wiring ring (8), and then extend out from the wiring ring (8) and connected to the heater in the mixing drum (6).

4. A hot mixer for producing oil-based asphalt warm mix agent according to claim 3, characterized in that: The partition (9) is welded to the inner wall of the mixing drum (6); the mixing assembly (10) comprises a mixing rod and a mixing blade; the mixing blade is arranged on the mixing rod; the mixing rod is connected to the output end of the servo motor (11) via a bolt; the other end of the mixing rod is mounted on the partition (9); and a mechanical seal is formed between the mixing rod, the mixing drum (6) and the partition (9).

5. A hot mixer for producing oil-based warm mix asphalt according to claim 4, characterized in that: Both ends of the fixed tube (12) are provided with flanges, which are connected to the bearing assembly (13) via bolts; the U-shaped frame (5) is erected between the hand wheel (4) and the bearing assembly (13); and the fixed tube (12) is connected to the servo motor (11) via bolts.

6. A hot mixer for producing oil-based asphalt warm mix agent according to claim 5, characterized in that: The mixing drum (6) is fixed to the U-shaped frame (5) by bolts, and is restricted from tipping over by a wiring ring (8).

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