Asphalt mixture separating apparatus
By employing a switchable coarse aggregate unloading support and an asphalt mixture separation device in the asphalt mixture separation equipment, the coarse and fine aggregates are fully mixed and separated, solving the problems of uneven heating and adhesion in traditional equipment, and improving the recycling quality and equipment operation stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HIGH SPEED TRAFFIC CONSTR GRP CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional asphalt mixture recycling equipment suffers from problems such as uneven heating of coarse and fine aggregates, high energy consumption, aging of fine aggregates, and adhesion to equipment parts during the recycling process, leading to a decline in recycling quality and equipment malfunctions.
The system employs a switchable coarse aggregate unloading support and an asphalt mixture separation device. By cooperating with the support through the positioning arm, the motor drives the mixing plate to rotate, achieving full mixing and separation of coarse and fine aggregates and preventing the adhesion of fine aggregates.
It achieves thorough separation of coarse and fine aggregates, avoids problems such as uneven heating and high energy consumption, improves recycling quality, prevents fine aggregate adhesion, and ensures normal equipment operation.
Smart Images
Figure CN224542241U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an asphalt equipment, or more precisely, an asphalt mixture separation equipment. Background Technology
[0002] With the rapid development of highways in my country, major and medium-sized repair projects and reconstruction and expansion projects are increasing, making the efficient recycling and utilization of asphalt mixtures a hot issue. Traditional asphalt mixture recycling equipment typically requires preheating the recycled asphalt mixture to a high temperature before mixing it with new aggregates, mineral powder, and asphalt to produce asphalt mixtures that meet the requirements. However, traditional asphalt mixture recycling has the following problems: During the reheating process, both coarse and fine aggregates are preheated to high temperatures simultaneously, resulting in uneven heating, high energy consumption, and fine aggregates are prone to aging at high temperatures, reducing the quality of the recycled asphalt mixture. After being exposed to high temperatures, the asphalt on the surface of the fine aggregates melts, causing the fine aggregates to adhere to rollers, temporary storage bins, weighing scales, and conveying devices. Over time, the amount of adhered fine aggregates increases, reducing the output of recycled mixtures and affecting the quality of recycled mixtures, and in severe cases, even causing the machine to malfunction. Therefore, it is necessary to separate fine aggregates and coarse aggregates. After the existing asphalt mixture separation equipment has separated the fine aggregates and coarse aggregates, the coarse aggregates will remain in the separation box. Personnel need to use tools to scoop out the remaining coarse aggregates before the new material can be separated, which is quite troublesome. Summary of the Invention
[0003] The purpose of this invention is to provide an asphalt mixture separation device that allows the positioning arm to be manually rotated after the coarse and fine aggregates have been screened, so that one side of the positioning arm aligns with one side of the second support. At this time, the screen is closer to the upper part of the separation and screening box, and the feed pipe is closer to the bottom of the separation and screening box. When the motor is turned on, it drives several mixing plates to rotate clockwise, which in turn drives the coarse aggregate inside the separation and screening box to be discharged from the feed pipe, thus facilitating the separation of new material.
[0004] To achieve the above objectives, this utility model employs the following technical solution: An asphalt mixture separation device includes a screening unit, which includes a fixed base. A switchable coarse aggregate unloading support and an asphalt mixture separation device are mounted on the upper part of the fixed base. The switchable coarse aggregate unloading support includes a column, the lower end of which is connected to the fixed base, and a positioning arm hinged to the upper end of the column. A second support and a first support are connected to both sides of the column, respectively. The second and first supports can cooperate with the sides of the positioning arm. An asphalt mixture separation device is mounted on one end of the positioning arm. The asphalt mixture separation device includes a separation and screening box. A motor is installed inside the separation and screening box, and the motor's housing is connected to the inner wall of the separation and screening box. The motor's output shaft is connected to a turntable. Several agitators are installed on the side of the turntable. One side of the separation and screening box is connected to a feed pipe, and a through hole is opened on the other side of the separation and screening box. A screen is connected inside the through hole, and the outer side of the separation and screening box is connected to the positioning arm.
[0005] To further achieve the purpose of this utility model, the following technical solution can also be adopted: the side periphery of the screen is connected to the inner wall side periphery of the through hole of the separation screening box, the separation screening box is located outside the screen and connected to the fine aggregate cold material bin, the fine aggregate cold material bin is a tubular shell structure, and the screen is located inside the fine aggregate cold material bin.
[0006] The separation and screening box is a cylindrical shell structure, and the central axis of the motor output shaft is collinear with the central axis of the separation and screening box.
[0007] The agitator includes a stirring plate, one side of which is connected to a rotating arm. The side of the stirring plate that engages with the rotating arm is farther from the output shaft of the motor than the other side. A brush is connected to one side of the stirring plate.
[0008] A fan is installed on one side of the separation and screening box, and the output end of the fan is connected to the interior of the separation and screening box.
[0009] The advantages of this invention are as follows: This invention combines a switchable coarse aggregate unloading support with an asphalt mixture separation device. During the screening of coarse and fine aggregates, one side of the positioning arm engages with the first support. At this time, the motor drives the mixing plates to rotate, thus mixing the coarse and fine aggregates inside the separation and screening box. This facilitates more thorough passage of the fine aggregates through the screen, thereby ensuring more complete separation of the coarse and fine aggregates. After the screening of coarse and fine aggregates is complete, the positioning arm can be manually rotated, engaging one side with one side of the second support. At this point, the screen is closer to the upper part of the separation and screening box, and the feed pipe is closer to the bottom. The motor is then turned on, driving several mixing plates to rotate clockwise, which in turn causes the coarse aggregates inside the separation and screening box to be discharged through the feed pipe. This invention facilitates the separation of coarse and fine aggregates, allowing for their separate feeding. This avoids uneven heating of the coarse and fine aggregates, high energy consumption, melting of asphalt on the surface of the fine aggregates, and prevents the fine aggregates from easily adhering to rollers, storage bins, weighing scales, and conveying devices. Attached Figure Description
[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Labeled components: Figure 1 This is a schematic diagram of the installation structure of this utility model; Figure 2 This is a schematic diagram of the screening state structure of this utility model; Figure 3 This is a schematic diagram of the structure of the discharged coarse aggregate of this utility model; Figure 4 for Figure 2 A magnified structural diagram of Part I. Detailed Implementation
[0011] The preferred embodiments of this utility model will be described below with reference to the accompanying drawings. Embodiment 1: Asphalt mixture separation equipment, such as Figures 1-4As shown, the device includes a screening device 1, which includes a fixed base 32. A switchable coarse aggregate unloading support and an asphalt mixture separator are mounted on the upper part of the fixed base 32. The switchable coarse aggregate unloading support includes a column 29, the lower end of which is connected to the fixed base 32, and a positioning arm 28 is hinged to the upper end of the column 29. A second support 31 and a first support 30 are respectively connected to both sides of the column 29. The second support 31 and the first support 30 can respectively cooperate with both sides of the positioning arm 28. One end of the positioning arm 28 is mounted on... An asphalt mixture separation device is provided, comprising a separation and screening box 21, a motor 22 installed inside the separation and screening box 21, the outer shell of the motor 22 being connected to the inner wall of the separation and screening box 21, the output shaft of the motor 22 being connected to a turntable 23, several agitators being installed on the side of the turntable 23, a feed pipe 20 being connected to one side of the separation and screening box 21, a through hole being opened on the other side of the separation and screening box 21, a screen 27 being connected inside the through hole, and a positioning arm 28 being connected to the outer side of the separation and screening box 21.
[0012] With the rapid development of highways in my country, major and medium-sized repair projects and reconstruction and expansion projects are increasing, making the efficient recycling and utilization of asphalt mixtures a hot issue. Traditional asphalt mixture recycling equipment typically requires preheating the recycled asphalt mixture to a high temperature before mixing it with new aggregates, mineral powder, and asphalt to produce asphalt mixtures that meet the requirements. However, traditional asphalt mixture recycling has the following problems: During the reheating process, both coarse and fine aggregates are preheated to high temperatures simultaneously, resulting in uneven heating, high energy consumption, and fine aggregates are prone to aging at high temperatures, reducing the quality of the recycled asphalt mixture. After being exposed to high temperatures, the asphalt on the surface of the fine aggregates melts, causing the fine aggregates to adhere to rollers, temporary storage bins, weighing scales, and conveying devices. Over time, the amount of adhered fine aggregates increases, reducing the output of recycled mixtures and affecting the quality of recycled mixtures, and in severe cases, even causing the machine to malfunction. Therefore, it is necessary to separate fine aggregates and coarse aggregates. After the existing asphalt mixture separation equipment has separated the fine aggregates and coarse aggregates, the coarse aggregates will remain in the separation box. Personnel need to use tools to scoop out the remaining coarse aggregates before the new material can be separated, which is quite troublesome.
[0013] This invention combines a switchable coarse aggregate unloading bracket with an asphalt mixture separation device. During the screening of coarse and fine aggregates, one side of the positioning arm 28 engages with the first bracket 30. At this time, the motor 22 drives the mixing plate 25 to rotate, thus mixing the coarse and fine aggregates inside the separation and screening box 21. This facilitates the more thorough passage of fine aggregates through the screen 27, thereby ensuring more complete separation of coarse and fine aggregates. After the screening of coarse and fine aggregates is complete, the positioning arm 28 can be manually rotated, engaging one side of the positioning arm 28 with one side of the second bracket 31. At this point, the screen 27 is closer to the upper part of the separation and screening box 21, and the feed pipe 20 is closer to the bottom of the separation and screening box 21. The motor 22 is then activated, driving several mixing plates 25 to rotate clockwise, causing the coarse aggregates inside the separation and screening box 21 to be discharged through the feed pipe 20. This invention facilitates the separation of coarse and fine aggregates, allowing for their separate feeding. This avoids uneven heating of the coarse and fine aggregates, high energy consumption, melting of asphalt on the surface of the fine aggregates, and prevents the fine aggregates from easily adhering to rollers, storage bins, weighing scales, and conveying devices.
[0014] Specific material selection and feasibility analysis: The samples we actually produced used the attached drawings of the instruction manual as the drawings, and were implemented according to the proportions and matching methods of each component in the attached drawings. The connections used were common methods such as strong adhesive connection, welding, riveting, flange connection, and one-piece molding connection. In actual production, the corresponding connection method, thickness, and strength of the connection point can be selected according to the actual connection strength requirements without creative innovation. The upper part of the fixing frame 34 is connected to the fixed end of the second conveyor belt 5 and several springs 33. One end of the springs 33 is connected to the outside of the fine aggregate temporary storage bin 6. This utility model adds a combination of a switchable coarse aggregate unloading bracket and an asphalt mixture separation device. When screening coarse and fine aggregates, one side of the positioning arm 28 can cooperate with the first bracket 30. At this time, the device uses the self-weight of the asphalt mixture separation device to maintain the asphalt mixture. Figure 2 In this state, motor 22 drives the stirring plate 25 to rotate, thereby stirring the coarse and fine aggregates inside the separation and screening box 21. This facilitates the fine aggregates to pass more fully through the screen 27, thus facilitating a more thorough separation of the coarse and fine aggregates. After the coarse and fine aggregates have been screened, the positioning arm 28 can be manually rotated, allowing one side of the positioning arm 28 to engage with one side of the second support 31, achieving... Figure 3In this state, the screen 27 is closer to the upper part of the separation and screening box 21, and the feed pipe 20 is closer to the bottom of the separation and screening box 21. The motor 22 is then turned on, driving several stirring plates 25 to rotate clockwise. This allows the coarse aggregate inside the separation and screening box 21 to be discharged through the feed pipe 20. This invention facilitates the separation of coarse and fine aggregates, allowing for separate feeding and avoiding uneven heating of the coarse and fine aggregates, high energy consumption, melting of the asphalt on the surface of the fine aggregates, and adhesion of the fine aggregates to the drum, temporary storage bin, weighing scale, and conveying device. A first conveyor belt 3 is installed on one side of the screening device 1, and a lifting device 4 is installed at the outlet of the first conveyor belt 3. The outlet of the first conveyor belt 3 cooperates with the inlet of the lifting device 4, allowing the material output from the first conveyor belt 3 to enter the inlet of the lifting device 4. A second conveyor belt 5 is installed at the outlet end of the lifting device 4, allowing the material output from the lifting device 4 to fall onto the second conveyor belt 5. A fine aggregate storage bin 6, an open-top shell structure, is installed below the outlet end of the second conveyor belt 5. A first gate valve 7 is installed at the bottom of the fine aggregate storage bin 6. A first vibration device 14 is installed on the outside of the fine aggregate storage bin 6. A first spiral conveyor device 18, including a motor, is installed inside the fine aggregate storage bin 6. The motor's housing is connected to the inner wall of the fine aggregate storage bin 6, and the motor's output shaft is connected to... The auger's output direction faces the bottom of the fine aggregate storage bin 6. The inlet of the first gate valve 7 is connected to the interior of the fine aggregate storage bin 6, and the outlet of the first gate valve 7 is connected to the inlet of the fine aggregate metering bin 8. The outer side of the fine aggregate metering bin 8 is connected to the second vibration device 15. The interior of the fine aggregate metering bin 8 is equipped with a second spiral conveying device 19, which includes a motor. The motor housing is connected to the inner wall of the fine aggregate metering bin 8, and the motor's output shaft is connected to the auger. The auger's output direction faces the bottom of the fine aggregate metering bin 8. A second gate valve 10 is installed at the bottom of the fine aggregate metering bin 8. The inlet of the second gate valve 10 is connected to the interior of the fine aggregate metering bin 8, and the outlet of the second gate valve 10 is connected to pipe 11. The outer side of pipe 11 is connected to the third vibration device 16, and the outlet of pipe 11 is connected to the third gate valve 12. The inlet of the third gate valve 12 is connected to pipe 11, and the outlet of the third gate valve 12 is connected to the inlet of the mixing pot 13. The production method of the cold-feeding equipment applied to asphalt mixture recycling includes the following steps: 1. Set the amount of fine aggregate required for each feeding in the integrated control system; 2. Feed the fine aggregate into the screening device 1 to screen out the asphalt mixture with oversized particles; 3. The material passes through the fine aggregate cold silo to the first conveyor belt 3 of the lifting device, and then through the lifting device 4 to the fine aggregate temporary storage silo 6. 4. After the fine aggregate arrives at the fine aggregate temporary storage bin 6, the first gate valve 7 is opened and the first vibration device 14 is turned on. The fine aggregate enters the fine aggregate metering bin 8 from the fine aggregate temporary storage bin 6 through the first spiral conveying device 18. When the fine aggregate metering bin 8 reaches 80% of the set value, the speed at which the fine aggregate enters the metering bin is controlled. 5 When the fine aggregate in the fine aggregate metering bin 8 reaches the set value, close the first gate valve 7 and the first vibration device 14, open the second gate valve 10, and start the second vibration device 15. If the first gate valve 7 is not closed, the valve 10 will not be able to open. 6. Fine aggregate enters the metering bin 8 from the fine aggregate metering bin 8 via the first screw conveyor 19 and then proceeds to the pipe 11, where the second gate valve 10 and the vibration device 15 connect. If the second gate valve 10 is not closed, the first gate valve 7 will not be able to open. 7. After the fine aggregate enters the metering bin and pipe 11, open the third gate valve 12 and start the third vibration device 16 to allow the fine aggregate to enter the mixing pot. 8. After mixing one batch, repeat steps 2-7 for the next batch. Controller 17 is used to control the operation of the motor.
[0015] Example 2: Asphalt mixture separation equipment, such as Figures 1-4 As shown, the device includes a screening device 1, which includes a fixed base 32. A switchable coarse aggregate unloading support and an asphalt mixture separator are mounted on the upper part of the fixed base 32. The switchable coarse aggregate unloading support includes a column 29, the lower end of which is connected to the fixed base 32, and a positioning arm 28 is hinged to the upper end of the column 29. A second support 31 and a first support 30 are respectively connected to both sides of the column 29. The second support 31 and the first support 30 can respectively cooperate with both sides of the positioning arm 28. One end of the positioning arm 28 is mounted on... An asphalt mixture separation device is provided, comprising a separation and screening box 21. A motor 22 is installed inside the separation and screening box 21, and the outer casing of the motor 22 is connected to the inner wall of the separation and screening box 21. The output shaft of the motor 22 is connected to a turntable 23, and several agitators are installed on the side of the turntable 23. One side of the separation and screening box 21 is connected to a feed pipe 20, and the other side of the separation and screening box 21 has a through hole, through which a screen 27 is connected. The outer side of the separation and screening box 21 is connected to a positioning arm 28. The side of the screen 27 is connected to the inner wall of the through hole in the separation and screening box 21. The separation and screening box 21, located outside the screen 27, is connected to a fine aggregate cold storage bin 2. The fine aggregate cold storage bin 2 is a tubular shell structure, and the screen 27 is located inside the fine aggregate cold storage bin 2.
[0016] The fine aggregate cold hopper 2 of this invention allows fine aggregate passing through the screen 27 to be discharged in a concentrated manner.
[0017] Example 3: Asphalt mixture separation equipment, such as Figures 1-4 As shown, the device includes a screening device 1, which includes a fixed base 32. A switchable coarse aggregate unloading support and an asphalt mixture separator are mounted on the upper part of the fixed base 32. The switchable coarse aggregate unloading support includes a column 29, the lower end of which is connected to the fixed base 32, and a positioning arm 28 is hinged to the upper end of the column 29. A second support 31 and a first support 30 are respectively connected to both sides of the column 29. The second support 31 and the first support 30 can respectively cooperate with both sides of the positioning arm 28. One end of the positioning arm 28 is mounted on... An asphalt mixture separator is provided, comprising a separation and screening box 21. A motor 22 is installed inside the separation and screening box 21, with the outer casing of the motor 22 connected to the inner wall of the separation and screening box 21. The output shaft of the motor 22 is connected to a turntable 23, and several agitators are installed on the side of the turntable 23. One side of the separation and screening box 21 is connected to a feed pipe 20, and the other side of the separation and screening box 21 has a through hole through which a screen 27 is connected. The outer side of the separation and screening box 21 is connected to a positioning arm 28. The separation and screening box 21 is a cylindrical shell structure, and the central axis of the output shaft of the motor 22 is collinear with the central axis of the separation and screening box 21.
[0018] The separation and screening box 21 of this utility model has a cylindrical shell structure, which facilitates the mixing plate 25 to fully mix the coarse and fine aggregates.
[0019] Example 4: Asphalt mixture separation equipment, such as Figures 1-4 As shown, the device includes a screening device 1, which includes a fixed base 32. A switchable coarse aggregate unloading support and an asphalt mixture separator are mounted on the upper part of the fixed base 32. The switchable coarse aggregate unloading support includes a column 29, the lower end of which is connected to the fixed base 32, and a positioning arm 28 is hinged to the upper end of the column 29. A second support 31 and a first support 30 are respectively connected to both sides of the column 29. The second support 31 and the first support 30 can respectively cooperate with both sides of the positioning arm 28. One end of the positioning arm 28 is mounted on... An asphalt mixture separator is provided, comprising a separation and screening box 21. A motor 22 is installed inside the separation and screening box 21, and the outer casing of the motor 22 is connected to the inner wall of the separation and screening box 21. The output shaft of the motor 22 is connected to a turntable 23. Several agitators are installed on the side of the turntable 23. One side of the separation and screening box 21 is connected to a feed pipe 20, and the other side of the separation and screening box 21 has a through hole through which a screen 27 is connected. The outer side of the separation and screening box 21 is connected to a positioning arm 28. Each agitator includes a mixing plate 25, one side of which is connected to a rotating arm 24. The side of the mixing plate 25 that engages with the rotating arm 24 is farther from the output shaft of the motor 22 than the other side. A brush 26 is connected to one side of the mixing plate 25.
[0020] When the mixing plate 25 of this invention rotates to mix coarse and fine aggregates, it can simultaneously drive the brush 26 to brush the surface of the screen 27, thereby preventing coarse aggregates from accumulating on the surface of the screen 27, avoiding easy clogging of the screen 27, and improving the permeability of the screen 27 to fine aggregates. The side of the mixing plate 25 that cooperates with the rotating arm 24 is farther from the output shaft of the motor 22 than the other side, which facilitates... Figure 2 When the mixing plate 25 rotates counterclockwise, it can lift up the coarse and fine aggregates, thereby allowing them to be fully dispersed and facilitating the screen 27 to fully screen them.
[0021] Example 5: Asphalt mixture separation equipment, such as Figures 1-4 As shown, the device includes a screening device 1, which includes a fixed base 32. A switchable coarse aggregate unloading support and an asphalt mixture separator are mounted on the upper part of the fixed base 32. The switchable coarse aggregate unloading support includes a column 29, the lower end of which is connected to the fixed base 32, and a positioning arm 28 is hinged to the upper end of the column 29. A second support 31 and a first support 30 are respectively connected to both sides of the column 29. The second support 31 and the first support 30 can respectively cooperate with both sides of the positioning arm 28. One end of the positioning arm 28 is mounted on... An asphalt mixture separator is provided, comprising a separation and screening box 21. A motor 22 is installed inside the separation and screening box 21, with the outer casing of the motor 22 connected to the inner wall of the separation and screening box 21. The output shaft of the motor 22 is connected to a turntable 23, and several agitators are installed on the side of the turntable 23. A feed pipe 20 is connected to one side of the separation and screening box 21, and a through hole is opened on the other side of the separation and screening box 21, through which a screen 27 is connected. The outer side of the separation and screening box 21 is connected to a positioning arm 28. A blower 33 is installed on one side of the separation and screening box 21, and the output end of the blower 33 is connected to the interior of the separation and screening box 21.
[0022] The fan 33 of this utility model can be in the position of this device. Figure 3 When the state is activated, airflow is introduced into the separation and screening box 21, thereby assisting in blowing out the coarse aggregate inside the separation and screening box 21.
[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.
Claims
1. An asphalt mixture separation device, characterized in that: The device includes a screening device (1), which includes a fixed base (32). A switchable coarse aggregate unloading support and an asphalt mixture separation device are installed on the upper part of the fixed base (32). The switchable coarse aggregate unloading support includes a column (29). The lower end of the column (29) is connected to the fixed base (32), and the upper end of the column (29) is hinged to a positioning arm (28). The two sides of the column (29) are respectively connected to a second support (31) and a first support (30). The second support (31) and the first support (30) can cooperate with the two sides of the positioning arm (28) respectively. One end of the positioning arm (28) Install an asphalt mixture separation device, which includes a separation and screening box (21). A motor (22) is installed inside the separation and screening box (21). The outer shell of the motor (22) is connected to the inner wall of the separation and screening box (21). The output shaft of the motor (22) is connected to a turntable (23). Several agitators are installed on the side of the turntable (23). One side of the separation and screening box (21) is connected to a feed pipe (20). A through hole is opened on the other side of the separation and screening box (21). A screen (27) is connected inside the through hole. The outer side of the separation and screening box (21) is connected to a positioning arm (28).
2. The asphalt mixture separation equipment according to claim 1, characterized in that: The side periphery of the screen (27) is connected to the inner wall periphery of the through hole of the separation screening box (21). The separation screening box (21) is located outside the screen (27) and connected to the fine aggregate cold material bin (2). The fine aggregate cold material bin (2) is a tubular shell structure, and the screen (27) is located inside the fine aggregate cold material bin (2).
3. The asphalt mixture separation equipment according to claim 1, characterized in that: The separation and screening box (21) is a cylindrical shell structure, and the central axis of the output shaft of the motor (22) is collinear with the central axis of the separation and screening box (21).
4. The asphalt mixture separation equipment according to claim 1, characterized in that: The stirrer includes a stirring plate (25), one side of which is connected to a rotating arm (24). The side of the stirring plate (25) that is engaged with the rotating arm (24) is farther from the output shaft of the motor (22) than the other side. A brush (26) is connected to one side of the stirring plate (25).
5. The asphalt mixture separation equipment according to claim 1, characterized in that: A fan (33) is installed on one side of the separation and screening box (21), and the output end of the fan (33) is connected to the interior of the separation and screening box (21).