High-viscosity modified emulsified asphalt cold regeneration equipment

Abstract

The utility model discloses high-viscosity modified emulsified asphalt cold regeneration equipment which comprises a first fixed seat, the side surface of the first fixed seat is fixedly connected with a motor, the output end of the motor is fixedly connected with a first barrel, and the outside of the first barrel is in transmission connection with a conveying belt; and the upper surface of the rack is fixedly connected with a first stirring bin and a second stirring bin, the side surfaces of the second stirring bin are each fixedly connected with two second driving motors, and the output ends of the two second driving motors are fixedly connected with a stirring shaft. By means of the structure, asphalt is conveyed to the first stirring bin through the conveying mechanism to be mixed, the heating device is installed on the water pipe, the situation that the emulsified asphalt becomes sticky due to temperature reduction in the mixing process of the emulsified asphalt is prevented, a heat dissipation structure is additionally arranged on the stirring shaft, and the influence of the temperature is prevented; and the flowing speed and direction of the materials can be changed, so that the interaction between the materials is facilitated, and the mixing uniformity is improved.

Description

Technical Field

[0001] This utility model relates to the field of asphalt recycling technology, and in particular to a cold recycling device for high-viscosity modified emulsified asphalt. Background Technology

[0002] High-viscosity modified emulsified asphalt cold recycling equipment is a specialized device used to mix old asphalt materials with new materials and recycle them at a relatively low temperature. Its main purpose is to achieve resource utilization of asphalt materials, reduce energy consumption and environmental impact during construction, and improve the efficiency and quality of road maintenance and repaving. For example, a stepped emulsified asphalt cold recycling mixing device, application number CN202222547019.0, is disclosed in a patent. This device allows the asphalt inside the mixing tank to be subjected to centrifugal force, thereby reducing obstruction to the central rotating rod, improving mixing efficiency, and reducing asphalt settling. However, it lacks a mechanism for diverting and cooling the flow of materials. During material cutting and mixing, the lack of guidance for the diversion of asphalt materials results in a relatively unidirectional flow of materials, potentially requiring a longer mixing time to achieve the desired mixing effect. Furthermore, excessively high temperatures can affect the mixing shaft, thus impacting overall production progress and efficiency. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a cold recycling equipment for high viscosity modified emulsified asphalt. The asphalt is transported to the first mixing chamber for mixing through a conveying mechanism, and a heating device is installed on the water pipe to prevent the emulsified asphalt from becoming viscous due to temperature drop during mixing. A heat dissipation structure is added to the mixing shaft to prevent the influence of temperature. In addition, the flow speed and direction of the material can be changed by the cooperation of the mixing blades and the distribution plate, thereby facilitating the interaction between materials and improving the mixing uniformity.

[0004] The aforementioned high-viscosity modified emulsified asphalt cold recycling equipment includes: a first fixed base and a second fixed base; a motor is fixedly connected to the side surface of the first fixed base; a first cylinder is fixedly connected to the output end of the motor; a conveyor belt is externally connected to the first cylinder; a second cylinder is internally connected to the conveyor belt; and both ends of the second cylinder are rotatably connected to the second fixed base; a frame; a first mixing chamber and a second mixing chamber are fixedly connected to the upper surface of the frame; the first mixing chamber and the second mixing chamber are fixedly connected through a pipe; a valve body is provided at the connection between the first mixing chamber and the pipe; a first electromagnetic heating wire is provided outside the pipe; an electromagnetic flow meter is provided outside the pipe; a material guide chute is fixedly connected to the side surface of the first mixing chamber; and a first fixed base is fixedly connected to the outside of the first mixing chamber. The system includes a first drive motor, with each output end of the first drive motor fixedly connected to a first stirring shaft. Two second drive motors are fixedly connected to the side surface of each of the second stirring chambers, with their output ends fixedly connected to second stirring shafts. A sleeve is fixedly connected to the outside of each second stirring shaft, and stirring blades are provided on the outside of the sleeve. A heat sink is provided at the connection between the sleeve and the second stirring shaft, and a flow divider is provided on the outside of the second stirring shaft. A water tank is also included, with its lower surface fixedly connected to a frame. A water pump is fixedly connected to the upper surface of the frame, with its input end fixedly connected to the water tank. A water pipe is fixedly connected to the output end of the water pump, with the end of the water pipe furthest from the water pump fixedly connected to the first stirring chamber. A second electromagnetic heating wire is provided on the outside of the water pipe. The asphalt is transported to the first mixing chamber by a conveying mechanism for mixing. A heating device is installed on the water pipe to prevent the emulsified asphalt from becoming viscous due to temperature drop during mixing. A heat dissipation structure is added to the second mixing shaft to prevent the influence of temperature. In addition, the flow speed and direction of the material can be changed by the cooperation of the mixing blades and the distribution plate, which facilitates the interaction between materials and improves the uniformity of mixing.

[0005] Furthermore, the inlet of the feed chute is located on the side of the conveyor belt, and the cross-section of the feed chute is trapezoidal. This guides the material to flow in a predetermined direction, reducing material spillage and splashing during transport.

[0006] Furthermore, the first fixed base, the second fixed base, the motor, the first cylinder, the conveyor belt, and the second cylinder constitute a conveying mechanism. There are two conveying mechanisms, located on the sides of the first mixing chamber and the second mixing chamber, respectively. The first and second cylinders provide power to the conveyor belt, enabling it to stably transport the asphalt raw materials.

[0007] Furthermore, the first stirring shaft is rotatably connected to the first stirring chamber at its output end away from the first drive motor, and the second stirring shaft is rotatably connected to the second stirring chamber at its end away from the second drive motor. The two second drive motors rotate in opposite directions. The first stirring chamber provides rotational support for the first stirring shaft, and the second stirring chamber provides rotational support for the second stirring shaft, enabling it to perform stable stirring motion.

[0008] Furthermore, baffles are fixedly connected to both sides of the first fixed seat, and the side of the baffle away from the first fixed seat is fixedly connected to the second fixed seat. This restricts the movement range of the asphalt raw material and prevents it from scattering to both sides due to vibration or external force during transportation.

[0009] Furthermore, a discharge port is provided on the side surface of the second mixing chamber, and a discharge valve is provided at the connection between the discharge port and the second mixing chamber. The discharge port ensures that the mixture can be discharged smoothly and evenly after mixing. The discharge valve can be opened or closed to adjust the discharge speed and amount of the mixture.

[0010] Furthermore, a control panel is installed on the outside of the first mixing chamber, and the control panel is electrically connected to the valve body. The control panel can automatically control the opening and closing of the valve body, thereby realizing the automatic discharge of asphalt mixture.

[0011] Furthermore, a flow sensor is installed inside the first mixing chamber, and the flow sensor is electrically connected to an electromagnetic flow meter. The flow sensor can sense the flow of materials inside the mixing chamber in real time, thereby realizing real-time monitoring of material flow.

[0012] Beneficial effects: Compared with existing technologies, this new high-viscosity modified emulsified asphalt cold recycling equipment transports asphalt to the first mixing chamber for mixing via a conveying mechanism. A heating device is installed on the water pipe to prevent the emulsified asphalt from becoming viscous due to temperature drop during mixing. A heat dissipation structure is added to the second mixing shaft to prevent the influence of temperature. In addition, the cooperation between the mixing blades and the distribution plate can change the flow speed and direction of the material, thereby facilitating the interaction between materials and improving the mixing uniformity. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a complete structural diagram of the high-viscosity modified emulsified asphalt cold recycling equipment of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the high-viscosity modified emulsified asphalt cold recycling equipment of this utility model;

[0016] Figure 3This is a structural diagram of the internal structure of the first mixing chamber of the high-viscosity modified emulsified asphalt cold recycling equipment of this utility model;

[0017] Figure 4 This is a structural diagram of the mixing mechanism of the high-viscosity modified emulsified asphalt cold recycling equipment of this utility model;

[0018] Figure 5 This is a structural diagram of the sleeve of the high-viscosity modified emulsified asphalt cold recycling equipment of this utility model.

[0019] Legend:

[0020] 1. First fixed base; 2. Second fixed base; 3. Motor; 4. First cylinder; 5. Conveyor belt; 6. Second cylinder; 7. Frame; 8. First mixing chamber; 9. Second mixing chamber; 10. Pipeline; 11. Valve body; 12. First electromagnetic heating wire; 13. Electromagnetic flow meter; 14. Feed chute; 15. First drive motor; 16. First stirring shaft; 17. Second drive motor; 18. Second stirring shaft; 19. Water tank; 20. Water pump; 21. Water pipe; 22. Second electromagnetic heating wire; 23. Baffle; 24. Discharge port; 25. Discharge valve; 26. Control panel; 27. Flow sensor; 28. Sleeve; 29. ​​Stirring blades; 30. Heat sink; 31. Diverter plate. Detailed Implementation

[0021] Specific Implementation Method 1: This embodiment is applicable to small-to-medium scale asphalt cold recycling projects (such as municipal road repair), refer to... Figure 1-5 The high-viscosity modified emulsified asphalt cold recycling equipment includes: a first fixed seat 1 and a second fixed seat 2. A motor 3 is fixedly connected to the side surface of the first fixed seat 1. A first cylinder 4 is fixedly connected to the output end of the motor 3. A conveyor belt 5 is connected to the outside of the first cylinder 4. A second cylinder 6 is connected to the inside of the conveyor belt 5. The two ends of the second cylinder 6 are rotatably connected to the second fixed seat 2. Baffles 23 are fixedly connected to both sides of the first fixed seat 1. The side of the baffle 23 away from the first fixed seat 1 is fixedly connected to the second fixed seat 2. The first fixed seat 1, the second fixed seat 2, the motor 3, the first cylinder 4, the conveyor belt 5 and the second cylinder 6 form a conveying mechanism. There are two conveying mechanisms. The two conveying mechanisms are located on the sides of the first mixing chamber 8 and the second mixing chamber 9, respectively.

[0022] Specific implementation method 2: Start the motor 3 to drive the first cylinder 4 so that the conveyor belt 5 can move, and cooperate with the second cylinder 6 to provide transmission support for the conveyor belt 5, so that the conveyor belt 5 can carry the asphalt raw material to the designated position.

[0023] A frame 7 has a first mixing chamber 8 and a second mixing chamber 9 fixedly connected to its upper surface. The first mixing chamber 8 and the second mixing chamber 9 are fixedly connected by a pipe 10. A valve body 11 is installed at the connection between the first mixing chamber 8 and the pipe 10. A first electromagnetic heating wire 12 and an electromagnetic flow meter 13 are installed outside the pipe 10. A flow sensor 27 is installed inside the first mixing chamber 8 and is electrically connected to the electromagnetic flow meter 13. A material guide chute 14 is fixedly connected to the side surface of the first mixing chamber 8. The inlet of the material guide chute 14 is located on the side of the conveyor belt 5. The cross-section of the material guide chute 14 is trapezoidal. A first drive motor 15 is fixedly connected to the outside of the first mixing chamber 8. A first mixing shaft 16 is fixedly connected to each output end of the first drive motor 15. The side surface of the second mixing chamber 9... Each unit is fixedly connected to two second drive motors 17. The output ends of the two second drive motors 17 are fixedly connected to a second stirring shaft 18. A sleeve 28 is fixedly connected to the outside of the second stirring shaft 18. Stirring blades 29 are provided on the outside of the sleeve 28. A heat sink 30 is provided at the connection between the sleeve 28 and the second stirring shaft 18. A flow divider 31 is provided on the outside of the second stirring shaft 18. The output end of the first stirring shaft 16 away from the first drive motor 15 is rotatably connected to the first stirring chamber 8. The end of the second stirring shaft 18 away from the second drive motor 17 is rotatably connected to the second stirring chamber 9. The two second drive motors 17 rotate in opposite directions. The heat sink 30 is made of aluminum alloy with a surface area ≥ 0.5 m². The blades of the flow divider 31 are inclined at a 45° angle and number 6-8, which can improve the mixing uniformity.

[0024] Specific implementation method 3: Start the first drive motor 15 to drive the first stirring shaft 16 to stir the material, and use the flow sensor 27 to detect the internal material and display it on the electromagnetic flow meter 13. After one stirring is completed, the asphalt is transported through the pipeline 10. At the same time, the second electromagnetic heating wire 22 is connected to the power supply to keep the transported asphalt at a certain temperature to prevent solidification. Then the asphalt enters the second mixing chamber 9. Start the second drive motor 17 to drive the second stirring shaft 18 to rotate in two directions. The diversion plate 31 outside the second stirring shaft 18 diverts the material and stirs the internal material through the stirring blades 29, so that the asphalt is stirred more evenly.

[0025] Water tank 19, the lower surface of water tank 19 is fixedly connected to frame 7, water pump 20 is fixedly connected to the upper surface of frame 7, the input end of water pump 20 is fixedly connected to water tank 19, the output end of water pump 20 is fixedly connected to water pipe 21, the end of water pipe 21 away from water pump 20 is fixedly connected to first mixing chamber 8, and a second electromagnetic heating wire 22 is provided on the outside of water pipe 21.

[0026] The water pump 20 is started to transport water in the water tank 19 through the water pipe 21, and the first electromagnetic heating wire 12 is connected to the power supply so that the heated water is added to the first mixing chamber 8.

[0027] The second mixing chamber 9 has a discharge port 24 on its side surface. A discharge valve 25 is provided at the connection between the discharge port 24 and the second mixing chamber 9. A control panel 26 is provided on the outside of the first mixing chamber 8. The control panel 26 is electrically connected to the valve body 11.

[0028] In this scheme, the first electromagnetic heating wire 12 and the second electromagnetic heating wire 22 have segmented power control, and the second stirring shaft 18 is equipped with heat sink 30. By adjusting the electromagnetic heating power (3.5-4.5kW / m²) and the reverse rotation speed of the second stirring shaft (40-60rpm), the high viscosity modified emulsified asphalt (viscosity ≥2500 mPa·s) is ensured to be uniformly mixed during the cold recycling process, while avoiding overheating of the stirring shaft due to increased load.

[0029] Specific Implementation Method Four: The control panel 26 can automatically control the opening and closing of the valve body 11, thereby realizing the automatic discharge of asphalt mixture, allowing asphalt to enter the second mixing chamber 9 from the first mixing chamber 8 through the pipe 10. The first mixing chamber 8 and the second mixing chamber 9 are connected by the pipe 10, and the pipe 10 has integrated electromagnetic heating wires 12 and is equipped with a heat insulation layer.

[0030] For fast-setting emulsified asphalt, since its initial setting time is ≤20 minutes, this embodiment adopts a series design of two mixing chambers, with the first mixing chamber 8 premixing and the second mixing chamber 9 final mixing, and the insulation layer of the pipeline 10 (thermal conductivity ≤0.05W / m·K) to achieve continuous feeding and uninterrupted discharge (capacity ≥5t / h).

[0031] Working principle: First, the asphalt raw material is piled on the conveyor belt 5. Then, the motor 3 is started to drive the first cylinder 4. Under the transmission of the first cylinder 4, the conveyor belt 5, and the second cylinder 6, the asphalt raw material is transported through the conveyor belt 5 to the inside of the guide chute 14, and then enters the first mixing chamber 8. The water pump 20 is started to transport water from the water tank 19 through the water pipe 21. At the same time, the first electromagnetic heating wire 12 is connected to the power supply, so that the heated water is added to the first mixing chamber 8. Then, the first drive motor 15 is started to drive the first mixing shaft 16 to stir the material, and the flow sensor 27 is used to stir the material. The internal materials are monitored and displayed on the electromagnetic flowmeter 13. After the first mixing is completed, the valve body 11 is opened through the control panel 26 to allow the asphalt to be transported through the pipeline 10. At the same time, the second electromagnetic heating wire 22 is connected to the power supply to maintain the transported asphalt at a certain temperature to prevent solidification. Then the asphalt enters the second mixing chamber 9, and the second drive motor 17 is started to drive the second mixing shaft 18 to rotate in two directions, thereby mixing the internal materials. After the second mixing is completed, the discharge valve 25 is opened so that the internal materials can be discharged through the discharge port 24.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A cold recycling equipment for high-viscosity modified emulsified asphalt, characterized in that, include: A first fixed seat (1) and a second fixed seat (2) are provided. A motor (3) is fixedly connected to the side surface of the first fixed seat (1). A first cylinder (4) is fixedly connected to the output end of the motor (3). A conveyor belt (5) is connected to the outside of the first cylinder (4). A second cylinder (6) is connected to the inside of the conveyor belt (5). Both ends of the second cylinder (6) are rotatably connected to the second fixed seat (2). A frame (7) is provided, on the upper surface of which a first mixing chamber (8) and a second mixing chamber (9) are fixedly connected. The first mixing chamber (8) and the second mixing chamber (9) are fixedly connected through a pipe (10). A valve body (11) is provided at the connection between the first mixing chamber (8) and the pipe (10). A first electromagnetic heating wire (12) is provided outside the pipe (10). An electromagnetic flow meter (13) is provided outside the pipe (10). A guide chute (14) is fixedly connected to the side surface of the first mixing chamber (8). A first drive motor (15) is fixedly connected to the outside of the first mixing chamber (8). The output ends of the first drive motor (15) are fixedly connected to the first stirring shaft (16), and the side surface of the second stirring chamber (9) is fixedly connected to two second drive motors (17). The output ends of the two second drive motors (17) are fixedly connected to the second stirring shaft (18). The outside of the second stirring shaft (18) is fixedly connected to the sleeve (28). The outside of the sleeve (28) is provided with stirring blades (29). The connection between the sleeve (28) and the second stirring shaft (18) is provided with heat sinks (30). The outside of the second stirring shaft (18) is provided with a flow divider (31). Water tank (19), the lower surface of the water tank (19) is fixedly connected to the frame (7), the upper surface of the frame (7) is fixedly connected to the water pump (20), the input end of the water pump (20) is fixedly connected to the water tank (19), the output end of the water pump (20) is fixedly connected to the water pipe (21), the end of the water pipe (21) away from the water pump (20) is fixedly connected to the first mixing chamber (8), and a second electromagnetic heating wire (22) is provided on the outside of the water pipe (21).

2. The high-viscosity modified emulsified asphalt cold recycling equipment according to claim 1, characterized in that, The inlet of the guide trough (14) is located on the side of the conveyor belt (5), and the cross-section of the guide trough (14) is a trapezoidal structure.

3. The high-viscosity modified emulsified asphalt cold recycling equipment according to claim 1, characterized in that, The first fixed seat (1), the second fixed seat (2), the motor (3), the first cylinder (4), the conveyor belt (5) and the second cylinder (6) form a conveying mechanism. There are two conveying mechanisms, which are located on the sides of the first mixing chamber (8) and the second mixing chamber (9), respectively.

4. The high-viscosity modified emulsified asphalt cold recycling equipment according to claim 1, characterized in that, The first stirring shaft (16) is rotatably connected to the first stirring chamber (8) at the output end away from the first drive motor (15), and the second stirring shaft (18) is rotatably connected to the second stirring chamber (9) at the end away from the second drive motor (17). The two second drive motors (17) rotate in opposite directions.

5. The high-viscosity modified emulsified asphalt cold recycling equipment according to claim 1, characterized in that, Both sides of the first fixed seat (1) are fixedly connected with baffles (23), and the side of the baffle (23) away from the first fixed seat (1) is fixedly connected to the second fixed seat (2).

6. The high-viscosity modified emulsified asphalt cold recycling equipment according to claim 1, characterized in that, The side surface of the second mixing chamber (9) is provided with a discharge port (24), and a discharge valve (25) is provided at the connection between the discharge port (24) and the second mixing chamber (9).

7. The high-viscosity modified emulsified asphalt cold recycling equipment according to claim 1, characterized in that, The first mixing chamber (8) is provided with a control panel (26) on its exterior, and the control panel (26) is electrically connected to the valve body (11).

8. The high-viscosity modified emulsified asphalt cold recycling equipment according to claim 1, characterized in that, The first mixing chamber (8) is equipped with a flow sensor (27), which is electrically connected to the electromagnetic flow meter (13).

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