A modified asphalt preparation system and method of use thereof

Abstract

The application relates to a modified asphalt preparation system and a use method thereof, relates to the technical field of asphalt modification, and comprises a placing assembly, a placing cylinder, a stirring assembly and a filtering assembly; the placing assembly comprises a heating table and a control element, the placing cylinder is placed on the heating table, and the control element is used for controlling the heating temperature of the heating table; a cylinder cover is arranged on the placing cylinder, one end of the cylinder cover close to the placing cylinder is rotationally connected with a rotating disc, a rotating driving device is arranged on the rotating disc, a temperature measuring instrument is further arranged on the rotating disc, and the temperature measuring instrument is electrically connected with the control element; the stirring assembly comprises a mounting column and a glass rod, the mounting column is slidably connected with the rotating disc, one end of the mounting column is connected with a pressure sensor, the pressure sensor is electrically connected with the control element, and one end of the glass rod close to the placing cylinder is connected with the mounting column; the filtering assembly is arranged at the top end of the placing cylinder and communicates with the placing cylinder. The application has the effects of facilitating the test on emulsified asphalt and reducing the damage of asphalt smoke gas to the health of operators in the test process.

Description

Technical Field

[0001] This application relates to the field of asphalt modification technology, and in particular to a modified asphalt preparation system and its method of use. Background Technology

[0002] Currently, modified emulsified asphalt is developing rapidly in China. The solid content of emulsified asphalt is an important indicator for characterizing the content of effective components in emulsified asphalt. The solid content of emulsified asphalt is determined by the evaporation dehydration method.

[0003] In related technologies, the heating instrument used in the heating and dehydration test of emulsified asphalt is an electric furnace or a gas furnace for direct heating. During the test, the emulsified asphalt is slowly heated while being stirred. At the beginning of the test, when the sample temperature rises to 100℃ and reaches a boiling state, a large number of bubbles escape from the sample surface, accompanied by a large amount of asphalt fumes. When there are no more large numbers of bubbles on the sample surface and it gradually becomes pasty, the operator needs to adjust the heating temperature. Otherwise, it will quickly exceed the required 163℃±3.0℃, resulting in residual moisture in the sample and affecting the accuracy of the residue content and property test.

[0004] The aforementioned technologies require operators to continuously stir the emulsified asphalt and monitor and adjust its temperature, making the operation inconvenient. As a result, operators need to stay in front of the test bench for extended periods, which can lead to the inhalation of asphalt fumes and harm to their health. Summary of the Invention

[0005] To facilitate testing of emulsified asphalt and reduce the harm of asphalt fumes to operators' health during testing, this application provides a modified asphalt preparation system and its usage method.

[0006] Firstly, this application provides a modified asphalt preparation system, which adopts the following technical solution:

[0007] A modified asphalt preparation system includes a placement component, a placement cylinder, a mixing component, and a filtering component. The placement component includes a heating platform and a control unit. The placement cylinder is placed on the heating platform, and the control unit controls the heating temperature of the heating platform. The placement cylinder has a cover, and a turntable is rotatably connected to one end of the cover near the cylinder. The turntable has a rotation drive for rotating the turntable, and a temperature sensor is also mounted on the turntable and electrically connected to the control unit. The mixing component includes a mounting column and a glass rod. The mounting column is slidably connected to the turntable, and the sliding direction of the mounting column is parallel to the surface of the turntable. A pressure sensor is connected to one end of the mounting column and electrically connected to the control unit. The glass rod is connected to the end of the mounting column near the inside of the placement cylinder and is used to mix the emulsified asphalt. The filtering component is located at the top of the placement cylinder and communicates with it. The filtering component filters the asphalt fumes inside the placement cylinder.

[0008] By adopting the above technical solution, emulsified asphalt is placed in the placement cylinder, and the rotation drive is started. The rotation drive drives the turntable to rotate, the turntable drives the mounting column to rotate, and the mounting column drives the glass rod to rotate. The glass rod stirs the emulsified asphalt. As the viscosity of the emulsified asphalt increases, the resistance received by the glass rod increases, which increases the pressure of the mounting column on the pressure sensor. The pressure sensor transmits the pressure data to the control unit. Combined with the temperature feedback from the thermometer to the control unit, the control unit adjusts the heating temperature of the heating platform to maintain the emulsified asphalt at 120 degrees Celsius to 130 degrees Celsius during the test, which is convenient for testing the emulsified asphalt. At the same time, the filter component can filter the fumes in the placement cylinder, reducing the harm of asphalt fumes to the health of operators during the test.

[0009] Optionally, the turntable is provided with a sliding arc groove, the mounting column is located in the sliding arc groove and can slide along the sliding arc groove, an elastic guide is provided in the sliding arc groove, one end of the elastic guide is connected to the mounting column and the other end is connected to the turntable, and the pressure sensor is located between the elastic guide and the turntable.

[0010] By adopting the above technical solution, the elastic guide can transmit the pressure on the mounting column to the pressure sensor on the one hand, and stabilize the mounting column on the other hand, reducing the possibility of the mounting column shaking violently in the sliding arc groove.

[0011] Optionally, the center of the sliding arc groove coincides with the center of the turntable.

[0012] By adopting the above technical solution, the coincidence of the centers makes the sliding trajectory of the installation column the same as the rotation trajectory of the turntable, which facilitates the uniform mixing of emulsified asphalt.

[0013] Optionally, the elastic guide includes a first connecting arm, a second connecting arm, and an elastic support. The first connecting arm is connected to a mounting post, and the second connecting arm is slidably connected to the end of the first connecting arm away from the mounting post. A compression cavity is formed at the end of the second connecting arm near the first connecting arm, and the elastic support is disposed in the compression cavity. One end of the elastic support is connected to the first connecting arm, and the end of the elastic support away from the first connecting arm is connected to a pressure sensor. The compression direction of the elastic support is the same as the sliding direction of the second connecting arm.

[0014] By adopting the above technical solution, after the viscosity of the emulsified asphalt increases, the glass rod drives the mounting column to slide in the sliding arc groove. The mounting column squeezes the first connecting arm, and the first connecting arm squeezes the elastic support, causing the first connecting arm to slide along the second connecting arm. The first and second connecting arms guide the mounting column on the one hand, and transmit the pressure received to the pressure sensor on the other hand, so that the glass rod can stably stir the emulsified asphalt while providing pressure data to the control components.

[0015] Optionally, the elastic support includes a first elastic element and a telescopic tube, both of which have the same curvature as the second connecting arm, and the first elastic element is sleeved on the telescopic tube.

[0016] By adopting the above technical solution, when the first connecting arm slides along the second connecting arm, it squeezes both the first elastic element and the telescopic tube, and the telescopic tube guides the first elastic element.

[0017] Optionally, the cylinder cover has a placement hole, the mounting column passes through the placement hole and abuts against the turntable, the top surface of the mounting column is flush with the bottom surface of the cylinder cover, the end of the glass rod away from the mounting column leaves a stirring gap with the bottom of the placement cylinder, the mounting column is slidably connected to the first connecting arm, the sliding direction of the mounting column is parallel to the axis of the mounting column, a second elastic element is provided between the mounting column and the turntable, the second elastic element is used to support the mounting column, the compression direction of the second elastic element is the same as the sliding direction of the mounting column.

[0018] By adopting the above technical solution, after placing the emulsified asphalt in the placement cylinder, the cylinder cover is fastened, and the glass rod and the mounting column are inserted into the placement hole through the placement hole. The mounting column is pressed at regular intervals, and the mounting column squeezes the second elastic element, which reduces the stirring gap between the glass rod and the bottom of the placement cylinder. The glass rod contacts and stirs the bottom surface of the placement cylinder, reducing the possibility of the emulsified asphalt sticking to the bottom of the placement cylinder.

[0019] Optionally, at least two stirring components are symmetrically arranged along the axis of the placement cylinder, and the at least two stirring components are installed in the same way as the turntable.

[0020] By adopting the above technical solution, the two symmetrically arranged mixing components facilitate the uniform mixing of emulsified asphalt.

[0021] Optionally, a first fixing component is provided between the placement cylinder and the heating table, the first fixing component is used to fix the placement cylinder, and a second fixing component is provided on the cylinder cover, the second fixing component is used to fix the cylinder cover.

[0022] By adopting the above technical solution, the first fixing component can improve the stability of the placement cylinder on the heating platform, and the second fixing component can improve the stability of the cylinder cover on the placement cylinder.

[0023] On the other hand, this application also provides a method of use applicable to one of the modified bitumen preparation systems described above.

[0024] A method for using a modified asphalt preparation system, the operation steps of which are as follows:

[0025] S1. Place the emulsified asphalt to be tested into the placement cylinder, fasten the cylinder cover onto the placement cylinder, and set the heating temperature;

[0026] S2. Start the rotary drive. The rotary drive drives the mounting column and glass rod to stir the emulsified asphalt.

[0027] S3. During stirring, the pressure sensor sends a signal to the controller based on the pressure value generated by the installed column during stirring, and the controller adjusts the heating temperature based on the pressure data;

[0028] S31. The greater the pressure sensed by the pressure sensor, the higher the viscosity of the emulsified asphalt, and the higher the temperature inside the placement cylinder. The temperature measuring instrument measures the temperature of the emulsified asphalt, and the control unit can adjust the temperature of the heating platform in real time according to the pressure data and temperature data, so that the temperature inside the placement cylinder is maintained between 120 degrees Celsius and 130 degrees Celsius.

[0029] S5. When the pressure on the pressure sensor increases, the filter assembly is activated to filter the large amount of smoke generated by the emulsified asphalt.

[0030] By adopting the above technical solution, the pressure sensor and temperature measuring instrument transmit data to the control unit. The control unit adjusts the temperature of the heating platform in real time according to the pressure and temperature data, so that the temperature inside the placement cylinder is maintained between 120 degrees Celsius and 130 degrees Celsius. The emulsified asphalt is continuously stirred, so that the emulsified asphalt meets the test standard for ductility, which is convenient for testing the emulsified asphalt.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. By setting up a placement component, a placement cylinder, a mixing component, and a filtering component, emulsified asphalt is placed in the placement cylinder. The placement component heats the placement cylinder, and the mixing component stirs the emulsified asphalt during heating. A thermometer installed on the placement cylinder monitors the temperature of the emulsified asphalt. The mounting column and glass rod in the mixing component can monitor the viscosity of the emulsified asphalt during stirring, so as to adjust the heating temperature of the placement component and facilitate the testing of the emulsified asphalt. The filtering component absorbs and filters the fumes generated after heating the emulsified asphalt during stirring, reducing the harm of asphalt fumes to the health of operators during the test.

[0033] 2. By setting an elastic guide between the mounting column and the turntable, the elastic guide guides the mounting column on the one hand and improves the stability of the mounting column in the sliding arc groove on the other hand. The viscosity of the emulsified asphalt increases, the resistance increases when the glass rod is stirring, and the glass rod drives the mounting column to slide closer to the pressure sensor. While the mounting column slides, the elastic guide buffers the mounting column and slowly transmits the pressure on the mounting column to the pressure sensor. Attached Figure Description

[0034] Figure 1This is a schematic diagram of a modified asphalt preparation system according to an embodiment of this application.

[0035] Figure 2 This is a front sectional view of a modified asphalt preparation system according to an embodiment of this application.

[0036] Figure 3 This is a partial perspective sectional view of a modified asphalt preparation system according to an embodiment of this application.

[0037] Figure 4 This is a partial three-dimensional sectional view from another perspective of a modified asphalt preparation system according to an embodiment of this application.

[0038] Figure 5 This is a partial perspective sectional view of a modified asphalt preparation system according to an embodiment of this application.

[0039] Figure 6 yes Figure 5 Enlarged view of part A in the middle.

[0040] Explanation of reference numerals in the attached drawings: 1. Placement component; 11. Heating platform; 12. Control component; 2. Placement cylinder; 21. Cylinder cover; 211. Placement hole; 22. Turntable; 221. Sliding arc groove; 23. Rotation drive; 24. Stirring gap; 3. Stirring component; 31. Mounting column; 311. Limiting plate; 312. Second elastic element; 32. Glass rod; 4. Filter assembly; 41. Filter element; 42. Smoke purifier; 5. Pressure sensor; 6. First fixing element; 61. Clamping block; 62. Screw; 63. First fixing plate; 7. Second fixing element; 71. Fixing seat; 72. Fixing bolt; 8. Elastic guide element; 81. First connecting arm; 82. Second connecting arm; 83. Extrusion chamber; 84. Elastic support; 841. First elastic element; 842. Telescopic tube; 9. Thermometer. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0042] This application discloses a modified asphalt preparation system.

[0043] Reference Figure 1 , Figure 2A modified asphalt preparation system includes a placement component 1, a placement cylinder 2, a stirring component 3, and a filtering component 4. The placement component 1 includes a heating platform 11 and a control component 12. The heating platform 11 is a temperature-controlled heating furnace, and the placement cylinder 2 is placed on the heating platform 11. The control component 12 is used to control the heating temperature of the heating platform 11, and the control component 12 is a PLC controller. A cylinder cover 21 is coaxially provided on the placement cylinder 2. A transparent observation area is provided on the cylinder cover 21. The transparent observation area is transparent glass bonded to the cylinder cover 21. A turntable 22 is rotatably connected to one end of the cylinder cover 21 near the placement cylinder 2 via a bearing. A rotation drive 23 is provided on the turntable 22. The rotation drive 23 is a servo motor that drives the rotation drive 23, which can drive the turntable 22 to rotate. A thermometer 9 is also fixedly connected to the turntable 22 by bolts. The thermometer 9 is an infrared thermometer and is electrically connected to the control component 12.

[0044] Reference Figure 2 , Figure 3 Two stirring components 3 are symmetrically arranged along the axis of the placement cylinder 2, and the two stirring components 3 are installed in the same way with the turntable 22. The stirring component 3 includes a mounting column 31 and a glass rod 32. A placement hole 211 is opened on the cylinder cover 21. The mounting column 31 passes through the placement hole 211 and abuts against the turntable 22. A limiting piece 311 is integrally formed on the top of the mounting column 31. The limiting piece 311 is used to snap the mounting column 31 onto the cylinder cover 21. The top surface of the limiting piece 311 is flush with the bottom surface of the cylinder cover 21. The mounting column 31 is slidably connected to the turntable 22. The sliding trajectory of the mounting column 31 is arc-shaped and concentric with the rotation trajectory of the rotation drive 23. One end of the mounting post 31 is connected to a pressure sensor 5, which is electrically connected to the control component 12. The pressure data of the pressure sensor 5 can be transmitted to the control component 12. The glass rod 32 is fixedly connected to the end of the mounting post 31 near the placement cylinder 2 by a clamp. The glass rod 32 is used to stir emulsified asphalt. The end of the glass rod 32 away from the mounting post 31 has a stirring gap 24 between it and the bottom of the placement cylinder 2.

[0045] Reference Figure 2 A first fixing member 6 is provided between the placement cylinder 2 and the heating table 11. In this embodiment, four first fixing members 6 are provided. The four first fixing members 6 are circumferentially arranged at equal intervals along the axis of the placement cylinder 2. The first fixing component is used to fix the placement cylinder 2. The first fixing member 6 includes a pressing block 61, a screw 62 and a first fixing plate 63. The pressing block 61 is located on the periphery of the placement cylinder 2. The screw 62 passes through the first fixing plate 63 and is rotatably connected to the pressing block 61 through a rotating block. The screw 62 is threadedly connected to the first fixing plate 63.

[0046] Reference Figure 3The cylinder cover 21 is provided with a second fixing member 7. In this embodiment, four second fixing members 7 are provided. The four second fixing members 7 are circumferentially arranged at equal intervals along the axis of the placement cylinder 2. The second fixing members 7 are used to fix the cylinder cover 21. The second fixing member 7 includes a fixing seat 71 and a fixing bolt 72. The fixing seat 71 is "L" shaped. The fixing bolt 72 passes through the fixing seat 71 laterally and abuts against the circumferential side wall of the cylinder cover 21. The cylinder cover 21 is in the shape of an inverted "C" and is fastened to the top of the placement cylinder 2.

[0047] Reference Figure 2 , Figure 3 The filter assembly 4 is located at the top of the placement cylinder 2 and communicates with it. The filter assembly 4 is used to filter the asphalt fumes inside the placement cylinder 2. The filter assembly 4 includes a filter element 41, an exhaust element, and a smoke purifier 42. The filter element 41 is fixedly connected to the cylinder cover 21 by bolts. The filter element 41 is a fume filter, and one end of the filter element 41 extends out of the cylinder cover 21. The exhaust element and the smoke purifier 42 are integrated. The smoke purifier 42 is a small smoke purifier. The exhaust element communicates with the smoke purifier 42. The exhaust element and the filter element 41 are connected by a connecting pipe. The exhaust element is not shown in the figure.

[0048] Reference Figure 4 The turntable 22 has a sliding arc groove 221, the center of which coincides with the center of the turntable 22. The mounting post 31 is located in the sliding arc groove 221 and can slide along the sliding arc groove 221. An elastic guide 8 is provided in the sliding arc groove 221. One end of the elastic guide 8 is connected to the mounting post 31 and the other end is connected to the turntable 22. The pressure sensor 5 is located between the elastic guide 8 and the turntable 22.

[0049] Furthermore, referring to Figure 4 The elastic guide 8 includes a first connecting arm 81, a second connecting arm 82, and an elastic support 84. Both the first connecting arm 81 and the second connecting arm 82 are arc-shaped plates. The first connecting arm 81 is connected to the mounting post 31, and the second connecting arm 82 is slidably connected to the end of the first connecting arm 81 away from the mounting post 31. The first connecting arm 81 and the second connecting arm 82 are concentrically arranged and can slide along their respective circumferences in an arc. The first connecting arm 81 and the second connecting arm 82 are slidably connected via a slider-slider connection. A compression chamber 83 is formed at the end of the second connecting arm 82 near the first connecting arm 81. The elastic support 84 is located within the compression chamber 83. One end of the elastic support 84 is connected to the first connecting arm 81, and the end of the elastic support 84 away from the first connecting arm 81 abuts against a pressure sensor 5. The compression direction of the elastic support 84 is the same as the sliding direction of the second connecting arm 82. The pressure sensor 5 is fixedly connected to the compression chamber 83 by bolts and is located between the elastic support 84 and the second connecting arm 82.

[0050] When the resistance on the glass rod 32 increases, the glass rod 32 drives the mounting column 31 to slide within the sliding arc groove 221. The sliding direction of the mounting column 31 is opposite to the rotation direction of the turntable 22. When the mounting column 31 slides under pressure, it pushes the first connecting arm 81 to slide along the second connecting arm 82, and at the same time squeezes the elastic support 84. The elastic support 84 transmits the pressure to the pressure sensor 5, and the pressure sensor 5 transmits the pressure data to the control component 12, so that the control component 12 can control the temperature of the heating platform 11. At the same time, the thermometer 9 continuously measures the temperature of the emulsified asphalt in the placement cylinder 2 and feeds the temperature data back to the control component 12. The control component 12 combines the pressure data and temperature data to control the temperature of the heating platform 11, so as to facilitate the testing of the emulsified asphalt.

[0051] Reference Figure 4 The elastic support 84 includes a first elastic element 841 and a telescopic tube 842. The first elastic element 841 and the telescopic tube 842 have the same curvature as the second connecting arm 82. The first elastic element 841 is sleeved on the telescopic tube 842. The first elastic element 841 is a semi-circular helical spring. The telescopic tube 842 guides the first elastic element 841.

[0052] Reference Figure 5 , Figure 6 The mounting post 31 is slidably connected to the first connecting arm 81. The sliding direction of the mounting post 31 is parallel to its axis. A second elastic element 312 is provided between the mounting post 31 and the turntable 22 to support the mounting post 31. The compression direction of the second elastic element 312 is the same as the sliding direction of the mounting post 31. By pressing the mounting post 31 downwards, the end of the glass rod 32 away from the mounting post 31 abuts against the bottom of the placement cylinder 2, which facilitates the stirring of the bottom of the placement cylinder 2 by the glass rod 32 and reduces the possibility of the glass rod 32 being damaged by continuous friction with the bottom of the placement cylinder 2.

[0053] The implementation principle of the modified asphalt preparation system in this application embodiment is as follows: Emulsified asphalt is placed in the placement cylinder 2, and the rotation drive 23 and heating table 11 are started. The rotation drive 23 drives the turntable 22 to rotate. When the turntable 22 rotates, it drives the mounting column 31 and glass rod 32 to stir the emulsified asphalt. Over time, the emulsified asphalt changes from a liquid state to a paste state, then to a gel state, and finally back to a liquid state. Therefore, the resistance applied to the stirring rod is different when the emulsified asphalt is in different states. Therefore, when the emulsified asphalt is in a gel state, the glass rod 32 drives the mounting column 31 to slide along the sliding arc groove 221. The pressure sensor 5 is activated, thus applying pressure to the pressure sensor 5. The pressure sensor 5 feeds back the pressure data to the control unit 12, which controls the temperature of the heating platform 11. At the same time, the thermometer 9 measures the temperature of the emulsified asphalt in real time and transmits the temperature data to the control unit 12. The control unit 12 controls the temperature of the heating platform 11 so that the temperature of the emulsified asphalt does not exceed 160 degrees Celsius, thus facilitating the testing of the emulsified asphalt. The filter assembly 4 absorbs and filters the fumes in the placement cylinder 2 during the heating process of the emulsified asphalt, reducing the harm of asphalt fumes to the health of operators during the test.

[0054] In addition, this application also discloses the operating steps of a method for using a modified asphalt preparation system:

[0055] S1. Place the emulsified asphalt to be tested into the placement cylinder 2, fasten the cylinder cover 21 onto the placement cylinder 2, and set the heating temperature;

[0056] S2. Start the rotary drive 23. The rotary drive 23 drives the mounting column 31 and glass rod 32 to stir the emulsified asphalt. The heating of the emulsified asphalt is divided into five stages. In the first stage of heating, the emulsified asphalt is in a liquid state and the heating temperature is 120 degrees Celsius. In the second stage of heating, the emulsified asphalt gradually becomes viscous, and the heating temperature is still 120 degrees Celsius. In the third stage of heating, the emulsified asphalt is in a paste state and the heating temperature is 120 degrees Celsius to 130 degrees Celsius, which is 125 degrees Celsius in this embodiment. In the fourth stage of heating, the emulsified asphalt is in a gel state. At this time, the glass rod 32 experiences greater resistance, and the heating temperature is controlled at 120 degrees Celsius to 130 degrees Celsius, which is 125 degrees Celsius in this embodiment. In the fifth stage of heating, the emulsified asphalt gradually becomes liquid again and the heating is completed.

[0057] S3. During stirring, the pressure sensor 5 sends a signal to the controller based on the pressure value generated by the mounting column 31 during stirring. The controller then adjusts the heating temperature based on the pressure data.

[0058] S31. When the pressure sensor 5 senses the greater pressure, the higher the viscosity of the emulsified asphalt, the temperature inside the placement cylinder 2 will rise. The thermometer 9 will measure the temperature of the emulsified asphalt, and the control unit 12 can adjust the temperature of the heating table 11 in real time according to the pressure data and temperature data, so that the temperature inside the placement cylinder 2 is maintained between 120 degrees Celsius and 130 degrees Celsius.

[0059] S5. When the pressure on the pressure sensor 5 increases, the filter assembly 4 is activated to filter the large amount of smoke generated by the emulsified asphalt.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modified asphalt preparation system, characterized in that: It includes a placement component (1), a placement cylinder (2), a stirring component (3), and a filtering component (4); The placement assembly (1) includes a heating platform (11) and a control unit (12). The placement cylinder (2) is placed on the heating platform (11), and the control unit (12) is used to control the heating temperature of the heating platform (11). The placement cylinder (2) is provided with a cylinder cover (21). The cylinder cover (21) is rotatably connected to a turntable (22) at one end near the placement cylinder (2). The turntable (22) is provided with a rotation drive (23), which is used to rotate the turntable (22). The turntable (22) is also provided with a thermometer (9), which is electrically connected to the control unit (12). The mixing assembly (3) includes a mounting column (31) and a glass rod (32). The mounting column (31) is slidably connected to the turntable (22). The sliding direction of the mounting column (31) is parallel to the surface of the turntable (22). One end of the mounting column (31) is connected to a pressure sensor (5). The pressure sensor (5) is electrically connected to the control component (12). The glass rod (32) is connected to one end of the mounting column (31) near the inside of the placement cylinder (2). The glass rod (32) is used to mix emulsified asphalt. The filter assembly (4) is located at the top of the placement cylinder (2) and is connected to the placement cylinder (2). The filter assembly (4) is used to filter the asphalt fumes in the placement cylinder (2). The turntable (22) is provided with a sliding arc groove (221), the mounting column (31) is located in the sliding arc groove (221) and can slide along the sliding arc groove (221), the sliding arc groove (221) is provided with an elastic guide (8), one end of the elastic guide (8) is connected to the mounting column (31) and the other end is connected to the turntable (22), and the pressure sensor (5) is located between the elastic guide (8) and the turntable (22); The elastic guide (8) includes a first connecting arm (81), a second connecting arm (82), and an elastic support (84). The first connecting arm (81) is connected to the mounting post (31). The second connecting arm (82) is slidably connected to the end of the first connecting arm (81) away from the mounting post (31). The end of the second connecting arm (82) near the first connecting arm (81) is provided with a compression cavity (83). The elastic support (84) is located in the compression cavity (83). One end of the elastic support (84) is connected to the first connecting arm (81). The end of the elastic support (84) away from the first connecting arm (81) is connected to the pressure sensor (5). The compression direction of the elastic support (84) is the same as the sliding direction of the second connecting arm (82). The elastic support (84) includes a first elastic element (841) and a telescopic tube (842). The first elastic element (841) and the telescopic tube (842) have the same curvature as the second connecting arm (82). The first elastic element (841) is sleeved on the telescopic tube (842).

2. The modified asphalt preparation system according to claim 1, characterized in that: The center of the sliding arc groove (221) coincides with the center of the turntable (22).

3. The modified asphalt preparation system according to claim 1, characterized in that: The cylinder cover (21) has a placement hole (211). The mounting column (31) passes through the placement hole (211) and abuts against the turntable (22). The top surface of the mounting column (31) is flush with the bottom surface of the cylinder cover (21). The end of the glass rod (32) away from the mounting column (31) leaves a stirring gap (24) with the bottom of the placement cylinder (2). The mounting column (31) is slidably connected to the first connecting arm (81). The sliding direction of the mounting column (31) is parallel to the axis of the mounting column (31). A second elastic element (312) is provided between the mounting column (31) and the turntable (22). The second elastic element (312) is used to support the mounting column (31). The compression direction of the second elastic element (312) is the same as the sliding direction of the mounting column (31).

4. The modified asphalt preparation system according to claim 1, characterized in that: At least two stirring components (3) are symmetrically arranged along the axis of the placement cylinder (2), and at least two stirring components (3) are installed in the same way as the turntable (22).

5. The modified asphalt preparation system according to claim 1, characterized in that: A first fixing member (6) is provided between the placement cylinder (2) and the heating table (11). The first fixing member is used to fix the placement cylinder (2). A second fixing member (7) is provided on the cylinder cover (21). The second fixing member (7) is used to fix the cylinder cover (21).

6. A method of using a modified asphalt preparation system, for using the modified asphalt preparation system of claim 4 above, characterized in that, The operation steps are as follows: S1. Place the emulsified asphalt to be tested into the placement cylinder (2), fasten the cylinder cover (21) onto the placement cylinder (2), and set the heating temperature; S2. Start the rotary drive (23). The rotary drive (23) drives the mounting column (31) and the glass rod (32) to stir the emulsified asphalt. S3. During stirring, the pressure sensor (5) sends a signal to the controller based on the pressure value generated by the mounting column (31) during stirring. The controller adjusts the heating temperature based on the pressure data. S31. When the pressure sensor (5) senses the greater pressure, the higher the viscosity of the emulsified asphalt, the temperature inside the placement cylinder (2) will rise. The thermometer (9) will measure the temperature of the emulsified asphalt, and the control unit (12) will adjust the temperature of the heating platform (11) in real time according to the pressure data and temperature data, so that the temperature inside the placement cylinder (2) is maintained between 120 degrees Celsius and 130 degrees Celsius. S5. When the pressure on the pressure sensor (5) increases, the filter assembly (4) is activated to filter the large amount of smoke generated by the emulsified asphalt.

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