Separation experiment device for determining gradation of modified asphalt mixture

Abstract

The present application relates to the technical field of asphalt extraction, and relates to a separation experiment device for determining the gradation of modified asphalt mixture, which comprises a water tank, the top surface of which is open; a storage tank, which is arranged on the inner side of the water tank and has a gap between the inner wall of the water tank, the inside of the storage tank is provided with a stirring assembly, the outer side wall of the storage tank is provided with an ultrasonic assembly and a discharge port, the discharge port is provided with a filter screen, the inner side wall of the water tank is provided with a baffle, the position of the baffle corresponds to that of the filter screen; a rotary positioner, which is arranged above the water tank and has an output end connected to the top of the storage tank. The storage tank has a spherical structure, and comprises a first shell and a second shell, the first shell and the second shell are detachably connected. In use, the ultrasonic assembly and the storage tank are connected together and can move synchronously, so that the operation steps are simplified, the ultrasonic assembly and the storage tank will not collide, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of asphalt extraction, and in particular to a separation experimental device for modified asphalt mixture gradation determination. BACKGROUND

[0002] The extraction and screening of asphalt mixture can accurately determine the asphalt content, analyze the aggregate gradation, and provide a basis for calculating the volume parameters such as void ratio, and further evaluate the performance of the mixture. This can not only monitor the production process and ensure compliance with construction, but also diagnose the causes of early damage to the pavement and optimize the design. During the extraction and screening process, the mineral aggregates and fibers are intertwined and difficult to separate, which may affect the determination of the true mineral aggregate gradation and fiber content. Therefore, a separation device is needed to separate the mineral aggregates and fibers to accurately determine the gradation of the asphalt mixture. For example, the Chinese utility model patent with the patent application number CN202420123480.X provides a fiber separation device for measuring the gradation of asphalt mixture. In use, the mineral fiber mixture is first loaded into the filter screen, then stirred by the magnetic stirring assembly, then the filter screen is lifted, and the ultrasonic transducer is completely immersed in water, so that the mineral aggregates and fibers are separated.

[0003] The device has the following disadvantages: the ultrasonic transducer and the filter screen are separate, so the positions of the ultrasonic transducer and the filter screen need to be adjusted separately, which is not only cumbersome, but also the ultrasonic transducer and the filter screen are prone to collision, causing damage to the device. SUMMARY

[0004] The purpose of the present application is to provide a separation experimental device for modified asphalt mixture gradation determination, in which the ultrasonic assembly and the storage tank are connected together, so they can move synchronously, which not only simplifies the operation steps, but also prevents the ultrasonic assembly and the storage tank from colliding, prolonging the service life of the present application.

[0005] To achieve the above purpose, the present application provides the following technical solution: a separation experimental device for modified asphalt mixture gradation determination, comprising: a water tank, the top surface of the water tank is open; a storage tank is arranged on the inner side of the water tank, and there is a gap between the inner wall of the water tank and the storage tank, a stirring assembly is arranged in the storage tank, an ultrasonic assembly and a discharge port are arranged on the outer side wall of the storage tank, a filter screen is arranged in the discharge port, a baffle is arranged on the inner side wall of the water tank, and the position of the baffle corresponds to that of the filter screen; a rotary positioner is arranged above the water tank, and the output end of the rotary positioner is connected to the top of the storage tank.

[0006] Preferably, the storage box is in a spherical structure, the storage box comprises a first shell and a second shell, the first shell is detachably connected with the second shell, the volume of the second shell is greater than that of the first shell, the output end of the rotary positioner is connected with the first shell, the ultrasonic wave assembly, the discharge port and the filter screen are all arranged on the second shell, and the first shell is located above the second shell when the baffle is attached to the filter screen.

[0007] Preferably, an inner wall of the first shell is fixedly provided with a receiving box, an opening is formed on a side of the receiving box facing the second shell, and the output end of the stirring assembly extends to the inside of the second shell.

[0008] Preferably, a side wall of the first shell is provided with an air pressure adjusting assembly, the air pressure adjusting assembly comprises an air isolation assembly and a translational positioner, the air isolation assembly comprises a moving column, an air conveying cavity is arranged in the moving column, and the output end of the translational positioner is connected with the moving column.

[0009] Preferably, a first assembly hole is arranged on the side wall of the first shell, a second assembly hole corresponding in position to the first assembly hole is arranged on the receiving box, a first end portion of the moving column is arranged on the outside of the first shell, a second end portion of the moving column penetrates through the first assembly hole and extends into the second assembly hole, and the moving column can slide along the inner wall of the second assembly hole.

[0010] Preferably, the air isolation assembly further comprises a fixed column, an air storage cavity is arranged in the fixed column, the air storage cavity is in communication with the air conveying cavity, a first end portion of the fixed column is arranged on the outside of the first shell, a second end portion of the fixed column penetrates through the first assembly hole and extends into the second assembly hole, and the fixed column is fixedly connected with the inner wall of the second assembly hole.

[0011] Preferably, the cross sections of the moving column and the fixed column are both semicircular and mirror-symmetric, and the moving column can slide along the outer side wall of the fixed column.

[0012] Preferably, the receiving box and the inner wall of the first shell jointly form an assembly cavity, the stirring assembly comprises a motor, the motor is arranged in the assembly cavity and is fixedly connected with the inner wall of the first shell, the output end of the motor is connected with a first end portion of a first rotating shaft, a second end portion of the first rotating shaft extends to the inside of the receiving box and is connected with a first end portion of a second rotating shaft, a middle portion of the first rotating shaft is rotationally connected with the receiving box, a second end portion of the second rotating shaft is provided with a plurality of stirring paddles, and the second rotating shaft is detachably connected with the first rotating shaft.

[0013] Compared with the prior art, the present application has the advantages of:

[0014] (I) In use, the ultrasonic assembly is connected with the storage box together, so as to move synchronously, which not only simplifies the operation steps, but also avoids the ultrasonic assembly from colliding with the storage box, thereby prolonging the service life of the present application.

[0015] (II) The side wall of the first shell is provided with an air pressure adjusting assembly, which can make the air outside the storage box enter the space between the receiving box and the second shell after the rotary positioner drives the storage box to rotate 90°, so as to facilitate the smooth passing of the mineral aggregate in the storage box through the filter screen. When the rotary positioner drives the storage box to rotate 180°, the translation positioner drives the moving column to move reversely, so that the gas conveying cavity is no longer communicated with the inside of the receiving box, and neither the mineral aggregate nor the fiber can enter the gas conveying cavity, thereby ensuring the normal use of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the axonometric view of the present application;

[0017] Figure 2 is the axonometric view of the water tank in the present application;

[0018] Figure 3 is the axonometric view of the storage box, the ultrasonic assembly and the rotary positioner in the present application;

[0019] Figure 4 is the axonometric exploded view of the storage box in the present application;

[0020] Figure 5 is the axonometric view of the stirring assembly in the present application;

[0021] Figure 6 is the axonometric view of the air pressure adjusting assembly at one angle in the present application;

[0022] Figure 7 is the axonometric view of the air pressure adjusting assembly at another angle in the present application;

[0023] Figure 8 is the front view of the present application when the baffle and the filter screen are attached;

[0024] Figure 9 is the side view of the present application when the baffle and the filter screen are attached;

[0025] Figure 10 is Figure 9 is the enlarged view of A in the present application;

[0026] Figure 11 is the axonometric view of the present application when the storage box is rotated 90°;

[0027] Figure 12Top view cross-section of the application when the storage box is rotated 90°.

[0028] Figure 13 For Figure 12 Enlarged view at B.

[0029] Figure 14 Axonometric view of the application after the storage box is rotated 180°.

[0030] Reference signs include:

[0031] 1 - water tank, 11 - baffle, 2 - storage box, 21 - first housing, 211 - first assembly hole, 22 - second housing, 221 - discharge port, 23 - filter screen, 24 - clamping ring, 25 - receiving box, 251 - second assembly hole, 26 - assembly cavity, 3 - stirring assembly, 31 - motor, 32 - first rotating shaft, 33 - second rotating shaft, 34 - stirring paddle, 4 - ultrasonic assembly, 41 - extension rod, 42 - ultrasonic transducer, 5 - rotary positioner, 6 - air pressure regulating assembly, 61 - air isolation assembly, 611 - moving column, 6111 - air conveying cavity, 612 - fixed column, 6121 - air storage cavity, 62 - translational positioner. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0033] Embodiment 1

[0034] Please refer to Figures 1-14The application provides a technical scheme: a separation experiment device for modified asphalt mixture grading determination, which comprises a water tank 1, a storage tank 2, a stirring assembly 3, an ultrasonic assembly 4 and a rotary positioner 5. In use, water is added into the water tank 1 first, and then a mineral fiber mixture is added into the storage tank 2. At this time, the rotary positioner 5 drives the storage tank 2 to rotate until the filter screen 23 on the side wall of the storage tank 2 is attached to the baffle 11 on the inner side wall of the water tank 1, and the baffle 11 blocks the discharge port 221 on the side wall of the storage tank 2. Then the stirring assembly 3 works to stir the mineral fiber mixture in the storage tank 2, and the baffle 11 can prevent the mineral fiber mixture from leaving the storage tank 2 during the stirring process. After the stirring is completed, the rotary positioner 5 first drives the storage tank 2 to rotate by 90°, at this time, the discharge port 221 and the filter screen 23 are moved below the water surface in the water tank 1, and there is a gap between the discharge port 221 and the filter screen 23 and the inner bottom surface of the water tank 1. When the storage tank 2 rotates, the storage tank 2 can drive the ultrasonic assembly 4 to rotate together, so that the output end of the ultrasonic transducer 42 is completely immersed in water, and then the ultrasonic transducer 42 works to separate the mineral and the fiber, and the mineral can smoothly pass through the filter screen 23.

[0035] Please refer to Figures 1-3 、 Figures 8-9 and Figures 11-12 , the ultrasonic assembly 4 comprises an extension rod 41 and an ultrasonic transducer 42, when the rotary positioner 5 drives the storage tank 2 to rotate, the storage tank 2 can drive the extension rod 41 to rotate together, and then drive the ultrasonic transducer 42 to move below the water surface in the water tank 1, and then the ultrasonic transducer 42 works to separate the mineral and the fiber. When it is necessary to adjust the vertical position of the ultrasonic transducer 42, the rotary positioner 5 continues to drive the storage tank 2 to rotate forward or reverse, at this time, the ultrasonic transducer 4 can move upward or downward. In this process, the discharge port 221 and the filter screen 23 are always located below the water surface in the water tank 1.

[0036] Embodiment 2

[0037] Please refer to Figures 1-4 、 Figure 8 、 Figure 11 and Figure 14 , the storage tank 2 has a spherical structure, the storage tank 2 comprises a first shell 21 and a second shell 22, the first shell 21 is detachably connected with the second shell 22. When the rotary positioner 5 drives the storage tank 2 to rotate by 180°, so that the second shell 22 moves above the first shell 21, the second shell 22 can be detached. Thus, the mineral fiber mixture can be added into the first shell 21, or the fiber in the storage tank 2 can be taken away after the mineral and the fiber are separated. A clamping ring 24 is arranged on the outer side wall of the second shell 22, and the filter screen 23 is detachably connected with the clamping ring 24. After the clamping ring 24 is detached from the outer side wall of the second shell 22, the filter screen 23 with different aperture sizes can be replaced.

[0038] Please refer to Figures 1-5 , Figures 8-9 , Figures 11-12 and Figure 14 , the inner wall of the first shell 21 is fixedly provided with a receiving box 25, the receiving box 25 and the inner wall of the first shell 21 form an assembly cavity 26, and the stirring assembly 3 comprises a motor 31, a first rotating shaft 32, a second rotating shaft 33 and a plurality of stirring paddles 34. The motor 31 is arranged in the assembly cavity 26, and the first rotating shaft 32 is rotatably arranged at the center of the receiving box 25. When the storage box 2 is rotated by 180°, and the second shell 22 is removed, the second rotating shaft 33 and the plurality of stirring paddles 34 are removed from the first rotating shaft 32, so that the mineral fiber mixture can be more conveniently added to the first shell 21, or the fiber in the storage box 2 can be taken out, and then the second rotating shaft 33, the plurality of stirring paddles 34 and the second shell 22 can be assembled back. When the stirring assembly 3 works, the output end of the motor 31 drives the first rotating shaft 32 and the second rotating shaft 33 to rotate together, the second rotating shaft 33 drives the plurality of stirring paddles 34 to rotate, and the stirring work of the mineral fiber mixture is completed.

[0039] Embodiment 3

[0040] Please refer to Figures 1-13 , the sidewall of the first shell 21 is provided with an air pressure adjusting assembly 6, when the rotary positioner 5 drives the storage box 2 to rotate by 90°, the air pressure adjusting assembly 6 can make the air outside the storage box 2 enter the space between the receiving box 25 and the second shell 22, so that the mineral in the storage box 2 can smoothly pass through the filter screen 23. The air pressure adjusting assembly 6 comprises an air isolation assembly 61 and a translation positioner 62, the air isolation assembly 61 comprises a moving column 611, the inside of the moving column 611 is provided with a gas conveying cavity 6111, and the output end of the translation positioner 62 is connected with the moving column 611. When the rotary positioner 5 drives the storage box 2 to rotate by 90°, the translation positioner 62 drives the moving column 611 to move forward, the gas conveying cavity 6111 is in communication with the inside of the receiving box 25, and the air outside the storage box 2 can smoothly enter the inside of the receiving box 25 through the gas conveying cavity 6111. When the rotary positioner 5 drives the storage box 2 to rotate by 180°, the translation positioner 62 drives the moving column 611 to move reversely, the gas conveying cavity 6111 is no longer in communication with the inside of the receiving box 25, and neither the mineral nor the fiber can enter the gas conveying cavity 6111, so that the normal use of the present application is ensured.

[0041] Please refer to Figures 1-14The first housing 21 has a first mounting hole 211 on its side wall, and the receiving box 25 has a second mounting hole 251. The air-blocking assembly 61 also includes a fixed post 612, and the movable post 611 can slide along the inner wall of the second mounting hole 251. The fixed post 612 is fixedly connected to the inner wall of the second mounting hole 251. Both the movable post 611 and the fixed post 612 have sufficient length to extend to the outside of the first housing 21 through the first mounting hole 211. When the output end of the translation adjuster 62 is in the shortened state, the movable post 611 extends into the interior of the receiving box 25, and at this time the air delivery chamber 6111 communicates with the interior of the receiving box 25. When the output end of the translation adjuster 62 is in the extended state, the movable post 611 and the fixed post 612 cooperate to block the second mounting hole 251, so the air delivery chamber 6111 is not communicated with the interior of the receiving box 25. The fixed column 612 has an internal air storage chamber 6121. Regardless of the movement of the moving column 611, the air delivery chamber 6111 and the air storage chamber 6121 are always connected. The cooperation of the air storage chambers 6121 and 6121 increases the air storage capacity inside the air-sealing component 61. External air can enter the air-sealing component 61 through the air storage chamber 6121 and then quickly enter the space between the receiving box 25 and the second housing 22 through the air delivery chamber 6111, facilitating the smooth passage of the ore in the storage box 2 through the filter screen 23. Both the moving column 611 and the fixed column 612 have semi-circular cross-sections and are mirror-symmetrical. Therefore, the moving column 611 and the fixed column 612 can completely block the second assembly hole 251. Furthermore, when the translation adjuster 62 moves the moving column 611, the moving column 611 can slide along the outer wall of the fixed column 612, making the movement of the moving column 611 more stable.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A separation experimental apparatus for determining the gradation of modified asphalt mixtures, characterized in that, include: A water tank, wherein the top surface of the water tank is open; A storage tank is located inside the water tank and has a gap with the inner wall of the water tank. The storage tank is equipped with a stirring assembly inside. An ultrasonic component and a discharge port are provided on the outer wall of the storage tank. A filter screen is provided inside the discharge port. A baffle is provided on the inner wall of the water tank, and the position of the baffle corresponds to that of the filter screen. A rotary positioner is located above the water tank, and the output end of the rotary positioner is connected to the top of the storage bin.

2. The separation experimental apparatus for determining the gradation of modified asphalt mixtures according to claim 1, characterized in that, The storage bin has a spherical structure and includes a first shell and a second shell. The first shell and the second shell are detachably connected. The volume of the second shell is larger than that of the first shell. The output end of the rotary adjuster is connected to the first shell. The ultrasonic component, the discharge port and the filter screen are all located on the second shell. When the baffle is in contact with the filter screen, the first shell is located above the second shell.

3. The separation experimental apparatus for determining the gradation of modified asphalt mixtures according to claim 2, characterized in that, A receiving box is fixedly installed on the inner wall of the first housing. The receiving box is open on the side facing the second housing, and the output end of the stirring assembly extends into the inner side of the second housing.

4. The separation experimental apparatus for determining the gradation of modified asphalt mixtures according to claim 3, characterized in that, The first housing has a pressure regulating component on its side wall. The pressure regulating component includes an air-blocking component and a translational positioner. The air-blocking component includes a moving column. The moving column has an air supply chamber inside. The output end of the translational positioner is connected to the moving column. When the moving column moves to the inside of the receiving box, the inside of the storage box communicates with the outside through the air supply chamber.

5. The separation experimental apparatus for determining the gradation of modified asphalt mixtures according to claim 4, characterized in that, The first housing has a first assembly hole on its side wall, and the receiving box has a second assembly hole corresponding to the position of the first assembly hole. The first end of the moving column is located on the outside of the first housing, and the second end of the moving column passes through the first assembly hole and extends into the second assembly hole. The moving column can slide along the inner wall of the second assembly hole.

6. The separation experimental apparatus for determining the gradation of modified asphalt mixtures according to claim 5, characterized in that, The air-sealing assembly further includes a fixing column, the fixing column having an air storage chamber inside, the air storage chamber communicating with the air delivery chamber, the first end of the fixing column being located on the outside of the first housing, the second end of the fixing column passing through the first assembly hole and extending into the second assembly hole, the fixing column being fixedly connected to the inner wall of the second assembly hole.

7. The separation experimental apparatus for determining the gradation of modified asphalt mixtures according to claim 6, characterized in that, Both the movable column and the fixed column have semi-circular cross sections and are mirror-symmetrical. The movable column can slide along the outer wall of the fixed column.

8. The separation experimental apparatus for determining the gradation of modified asphalt mixtures according to claim 3, characterized in that, The receiving box and the inner wall of the first housing form an assembly cavity. The stirring assembly includes a motor, which is located in the assembly cavity and fixedly connected to the inner wall of the first housing. The output end of the motor is connected to the first end of the first rotating shaft. The second end of the first rotating shaft extends to the inner side of the receiving box and is connected to the first end of the second rotating shaft. The middle part of the first rotating shaft is rotatably connected to the receiving box. The second end of the second rotating shaft is provided with a plurality of stirring paddles. The second rotating shaft is detachably connected to the first rotating shaft.

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