A nanocellulose dosing and mixing device for asphalt modification

Abstract

The application relates to the technical field of feeding devices, in particular to a nano-cellulose quantitative feeding and mixing equipment for asphalt modification, which comprises a mounting frame, a material containing barrel mounted on the mounting frame, a hollow containing cavity with a horizontal bottom wall formed in the material containing barrel, a plurality of quantitative cylinders connected with the material containing barrel, a quantitative cylinder inner cavity communicated with the containing cavity, a feeding ring provided with at least one arc-shaped through slot, a communication position of the material containing barrel and the quantitative cylinder located in a rotating area of the arc-shaped through slot, a rotating gap left between the feeding ring and a top wall of the quantitative cylinder, a driving mechanism for driving the feeding ring to rotate, the driving mechanism connected with the material containing barrel, a discharging mechanism for plugging a lower end outlet of the quantitative cylinder, the discharging mechanism connected with the material containing barrel and the quantitative cylinder, a plurality of adjusting mechanisms for separating the quantitative cylinder inner cavities, the adjusting mechanisms connected with the quantitative cylinder, and the application has the effect of improving the precision of nano-cellulose quantitative feeding.

Description

Technical Field

[0001] This application relates to the field of feeding device technology, and in particular to a quantitative feeding and mixing device for asphalt modification nanocellulose. Background Technology

[0002] Nanocellulose is mainly extracted from waste straw, wood pulp or cotton fiber. The micro-nano-scale three-dimensional network structure of nanocellulose forms a skeleton in asphalt, fills the pores and restricts the flow of asphalt molecular chains, thereby improving the deformation resistance and density of asphalt. Asphalt with added nanocellulose can have its high-temperature performance, low-temperature crack resistance and durability significantly improved.

[0003] To incorporate nanocellulose into asphalt, a feeding machine is disclosed in the prior art, which includes a feeding barrel, an agitator, and a drive mechanism. The upper and lower ends of the feeding barrel have a first inlet and a first outlet, respectively, both of which are connected to a receiving cavity. Vertically, the agitator is closer to the first outlet than the first inlet. The drive mechanism includes a transmission part and a drive part, which are connected to the agitator. The drive part is located on the circumferential outer side of the feeding barrel, while the transmission part is located inside the feeding barrel. The transmission part includes a first connecting ring, a second connecting ring, and multiple connecting arms. The first connecting ring is fixedly connected to the agitator. The second connecting ring is sleeved on the radial outer side of the first connecting ring and spaced apart from it. The second connecting ring is connected to the drive part. Each connecting arm connects the first connecting ring and the second connecting ring. Any two adjacent connecting arms are spaced apart circumferentially along the first connecting ring to form a hollow section.

[0004] Regarding the aforementioned technologies, the powdered nanocellulose in the inner cavity of the feeding tank is moved by the stirring part, and then the discharge port at the lower end is opened. The powdered nanocellulose in the inner cavity of the feeding tank is discharged by gravity. The weight of the added nanocellulose is controlled by controlling the opening time of the discharge port. However, as the volume of the powdered nanocellulose in the inner cavity of the feeding tank changes, the discharge speed of the nanocellulose falling through the discharge port will change. At the same time, it will also be affected by the obstruction of powder arching at the discharge port, resulting in low accuracy of the added weight of nanocellulose. Utility Model Content

[0005] To improve the accuracy of quantitative feeding of nanocellulose, this application provides a nanocellulose quantitative feeding and mixing device for asphalt modification.

[0006] The present application provides a quantitative feeding and mixing device for asphalt modification using nanocellulose, which adopts the following technical solution:

[0007] A device for quantitative feeding and mixing of nanocellulose for asphalt modification, comprising:

[0008] Mounting frame, on which a material container is mounted, the material container being hollow and forming a receiving cavity with a horizontal bottom wall;

[0009] Multiple metering cylinders are connected to the material container, and the inner cavity of the metering cylinder is in communication with the receiving cavity;

[0010] The feeding ring has at least one arc-shaped groove, the connection between the material container and the metering cylinder is located within the rotation area of ​​the arc-shaped groove, and a rotation gap is left between the feeding ring and the top wall of the metering cylinder.

[0011] A drive mechanism for driving the feed ring to rotate, the drive mechanism being connected to the material container and the feed ring;

[0012] A discharge mechanism for sealing the lower outlet of a metering cylinder, wherein the discharge mechanism is connected to the container and the metering cylinder.

[0013] By adopting the above technical solution, the required total volume of nanocellulose powder is first calculated. Then, the inner cavity of the metering cylinder is divided by an adjustment mechanism to obtain the effective inner cavity volume of multiple metering cylinders. Initial nanocellulose powder is then fed into the receiving cavity through a feeding port on the top wall of the receiving cylinder. A drive mechanism then drives the feeding ring to rotate. As the feeding ring rotates, the nanocellulose powder passes through the arc-shaped groove into the metering cylinder. After the feeding ring rotates a certain number of times, the metering cylinder is filled with nanocellulose powder, and the feeding ring also flushes the nanocellulose powder with the top wall of the metering cylinder. At this point, the feeding ring is rotated again to seal the upper inlet of the metering cylinder. Then, the discharge mechanism opens the lower outlet of the metering cylinder, and the nanocellulose powder is discharged from the metering cylinder into the asphalt mixing tank, completing the quantitative feeding of nanocellulose. The total amount of material fed in one operation is equal to the sum of the effective inner volumes of multiple metering cylinders. The designed metering and mixing equipment for asphalt modification of nanocellulose provides the installation height for the container via a mounting frame. The container forms a cavity for storing nanocellulose powder, and the metering cylinder forms a temporary storage cavity for each single feeding of nanocellulose powder. A feed ring allows the nanocellulose powder from the cavity to enter the inner cavity of the metering cylinder and closes the upper inlet of the metering cylinder. A drive mechanism rotates the feed ring, and a discharge mechanism opens and closes the lower outlet of the metering cylinder, thus completing the single metering of nanocellulose and improving the accuracy of the metering. An adjustment mechanism changes the volume of the temporarily stored nanocellulose powder in the metering cylinder, i.e., the effective inner volume, thereby changing the total amount fed each time.

[0014] In one specific implementation, at least one stirring bar is connected to the feed ring, with one end of the stirring bar located near the end of the arc-shaped through groove and the other end tilted upwards to directly above the arc-shaped through groove.

[0015] By adopting the above technical solution, the designed stirring bar can firstly stir the nanocellulose powder in the container as the feed ring rotates, reducing the possibility of nanocellulose powder bridging. At the same time, it can also press the nanocellulose powder in the container into the metering cylinder using the inclined surface.

[0016] In one specific implementation, the stirring bar has multiple material passage holes.

[0017] By adopting the above technical solution, the designed material passage hole can improve the stirring effect of nanocellulose powder in the container.

[0018] In one specific implementation, the drive mechanism includes:

[0019] A drive motor is connected to the top wall of the container and is coaxially arranged with the container.

[0020] A rotating rod is rotatably connected to the material container and coaxially connected to the output shaft of the drive motor. The rotating rod is also coaxially and fixedly connected to the feed ring.

[0021] By adopting the above technical solution, the designed drive mechanism can drive the rotating rod to rotate through the drive motor, and the rotating rod can simultaneously drive the feed ring to rotate.

[0022] In one specific implementation scheme, the discharge mechanism includes:

[0023] The discharge motor is connected to the bottom wall of the container, and the output shaft of the discharge motor is coaxial with the output shaft of the drive motor.

[0024] A sealing ring is coaxially arranged and connected to the output shaft of the discharge motor. A rotation gap is left between the sealing ring and the bottom wall of the metering cylinder, and multiple arc-shaped discharge grooves are coaxially opened on the sealing ring.

[0025] By adopting the above technical solution, the designed discharge mechanism can drive the sealing ring to rotate through the discharge motor. The sealing ring, in conjunction with the arc-shaped discharge trough opened on it, can realize the opening and closing of the lower outlet of the metering cylinder.

[0026] In one specific implementation, the sealing ring is connected to multiple elastic striking rods, and the rotation of the sealing ring can cause the elastic striking rods to collide with the outer wall of the metering cylinder.

[0027] By adopting the above technical solution, the designed elastic striking rod can strike the metering cylinder, thereby reducing the possibility of nanocellulose powder adhering to the inner wall of the metering cylinder.

[0028] In one specific implementation, a wear plate is detachably connected to the outer wall of the metering cylinder, and the elastic striking rod collides with the outer wall of the metering cylinder through the wear plate.

[0029] By adopting the above technical solution, the designed wear plate can extend the service life of the metering cylinder.

[0030] In one specific implementation, the adjusting mechanism includes:

[0031] Two regulating motors are connected to the metering cylinder;

[0032] Two circular rotating rods pass through and are rotatably connected to the metering cylinder, and the two circular rotating rods are arranged parallel to each other with a rotational clearance. The protruding ends of the circular rotating rods are coaxially connected to the output shaft of the regulating motor.

[0033] Two sector-shaped sealing plates are located inside the metering cylinder. The straight ends of the sector-shaped sealing plates are connected to the circular rotating rod, and the arc-shaped ends of the sector-shaped sealing plates can abut against the inner wall of the metering cylinder.

[0034] By adopting the above technical solution and designing the adjustment mechanism, the volume of the nanocellulose powder temporarily stored in the metering cylinder can be changed, thereby realizing the change of the total amount of material fed each time.

[0035] In one specific implementation, the top wall of the metering cylinder is flush with the bottom wall of the receiving cavity.

[0036] By adopting the above technical solution, the metering cylinder with its top wall flush with the bottom wall of the receiving cavity can facilitate the entry of nanocellulose powder from the receiving container into the metering cylinder.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. The designed nanocellulose quantitative feeding and mixing equipment for asphalt modification includes a mounting frame that provides the installation height for the container, which forms a cavity for storing nanocellulose powder. A metering cylinder forms a temporary storage cavity for single-use nanocellulose powder feeding. A feed ring allows the nanocellulose powder from the container to enter the metering cylinder cavity and closes the upper inlet of the metering cylinder. A drive mechanism rotates the feed ring, and a discharge mechanism opens and closes the lower outlet of the metering cylinder, thus coordinating with the feed ring to complete single-use quantitative feeding of nanocellulose and improve the accuracy of nanocellulose quantitative feeding. An adjustment mechanism changes the volume of the temporarily stored nanocellulose powder in the metering cylinder, i.e., the effective inner cavity volume, thereby changing the total amount fed each time.

[0039] 2. The designed nanocellulose quantitative feeding and mixing equipment for asphalt modification uses a stirring bar to first stir the nanocellulose powder in the container by rotating the feed ring, reducing the possibility of nanocellulose powder bridging. At the same time, the nanocellulose powder in the container can also be pressed into the quantitative cylinder by the inclined surface.

[0040] 3. The designed nanocellulose quantitative feeding and mixing equipment for asphalt modification can drive the sealing ring to rotate through the discharge motor. The sealing ring, in conjunction with the arc-shaped discharge chute opened on it, can realize the opening and closing of the lower outlet of the quantitative cylinder. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a nanocellulose quantitative feeding and mixing device for asphalt modification according to an embodiment of this application.

[0042] Figure 2 yes Figure 1 The front view in the image.

[0043] Figure 3 yes Figure 2 A cross-sectional view of the hidden mounting bracket.

[0044] Figure 4 yes Figure 3 Schematic diagram of the isometric side.

[0045] Figure 5 Is Figure 4 The front view after adding the elastic striking rod to the original design.

[0046] Figure 6 Is Figure 5 A schematic diagram of the overall structure of a nanocellulose quantitative feeding and mixing device for asphalt modification, with the addition of wear plates.

[0047] Figure 7 yes Figure 6A 3D structural diagram showing the hidden mounting bracket and material container.

[0048] Figure 8 This is a schematic diagram of the overall structure of the metering cylinder and the adjusting mechanism in the embodiments of this application.

[0049] Figure 9 yes Figure 8 The sectional view is used to show the specific structure of the adjustment mechanism.

[0050] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 2. Material container; 3. Metering cylinder; 31. Wear plate; 4. Feeding ring; 41. Arc-shaped through groove; 5. Drive mechanism; 51. Drive motor; 52. Rotating rod; 6. Discharge mechanism; 61. Discharge motor; 62. Sealing ring; 621. Arc-shaped discharge chute; 7. Adjustment mechanism; 71. Adjustment motor; 72. Circular rotating rod; 73. Fan-shaped sealing plate; 8. Stirring bar; 9. Elastic striking rod. Detailed Implementation

[0051] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0052] This application discloses a device for quantitative feeding and mixing of nanocellulose for asphalt modification.

[0053] Reference Figure 1 A device for quantitative feeding and mixing of nanocellulose for asphalt modification includes a mounting frame 1 and a container 2. The container 2 is welded and fixed to the mounting frame 1, so that the bottom wall of the container 2 forms an initial ground clearance. The container 2 is hollow and forms a receiving cavity, and the bottom wall of the receiving cavity is horizontal. The container 2 is cylindrical in shape. A feeding port is opened on the top wall of the container 2, and nanocellulose powder material is fed into the receiving cavity through the feeding port.

[0054] Reference Figure 2 Furthermore, in order to achieve single-quantitative feeding of nanocellulose powder, multiple metering cylinders 3 are also included. The metering cylinders 3 are welded and fixed to the container 2, and the inner cavity of the metering cylinder 3 is connected to the container cavity. The top wall of the metering cylinder 3 is flush with the bottom wall of the container cavity to facilitate the complete emptying of nanocellulose powder in the container 2. The multiple metering cylinders 3 are evenly distributed in a circle around the same central axis. In this application, the number of metering cylinders 3 can be two, three, or other numbers. In this embodiment, the number of metering cylinders 3 is four.

[0055] Reference Figure 3In order to facilitate the sealing of the lower outlet of the metering cylinder 3, so that the nanocellulose powder in the metering cylinder 3 is discharged only after reaching a certain volume, a discharge mechanism 6 for sealing the lower outlet of the metering cylinder 3 is also included. The discharge mechanism 6 is connected to the container 2 and the metering cylinder 3.

[0056] Reference Figure 3 and Figure 4 Specifically, the discharge mechanism 6 includes a discharge motor 61 and a sealing ring 62. The discharge mechanism 6 is bolted to the bottom wall of the container 2, and the output shaft of the discharge motor 61 is coaxially arranged with the central shaft of multiple metering cylinders 3. The sealing ring 62 is connected to the output shaft of the discharge motor 61 by a connecting rod, and the sealing ring 62 is coaxially arranged with the output shaft of the discharge motor 61. A rotation gap is left between the sealing ring 62 and the bottom wall of the metering cylinder 3, and the distance of the rotation gap is small to control the nanocellulose powder to be difficult to pass through. Multiple arc-shaped discharge grooves 621 are coaxially opened on the sealing ring 62. After the sealing ring 62 rotates, the inner cavity of the metering cylinder 3 is connected to the outside through the arc-shaped discharge grooves 621.

[0057] Reference Figure 5 Furthermore, to reduce the possibility of nanocellulose powder adhering to the inner cavity of the metering cylinder 3, multiple elastic striking rods 9 are welded and fixed to the sealing ring 62. After the sealing ring 62 rotates, the elastic striking rods 9 can collide with the outer wall of the metering cylinder 3, thereby causing the nanocellulose adhering to the inner cavity of the metering cylinder 3 to fall off. In this application, the elastic striking rods 9 are made of deformable material, so that they can deform after colliding with the outer wall of the metering cylinder 3 and thus pass over the metering cylinder 3. Alternatively, the elastic striking rods 9 and the sealing ring 62 are connected by a torsion spring, thereby achieving the purpose of the elastic striking rods 9 passing over the metering cylinder 3.

[0058] Reference Figure 6 Furthermore, a wear plate 31 is detachably connected to the outer wall of the metering cylinder 3. The elastic striking rod 9 collides with the outer wall of the metering cylinder 3 through the wear plate 31, thereby reducing the wear of the metering cylinder 3 and extending its service life. In this application, the wear plate 31 and the metering cylinder 3 can be bolted together, embedded and fixed, or detachably connected in other ways. In this embodiment, the wear plate 31 and the metering cylinder 3 are embedded and fixed.

[0059] Reference Figure 7In order to facilitate the feeding of nanocellulose powder from the container 2 into the metering cylinder 3 and to close the upper inlet of the metering cylinder 3 when the lower outlet of the metering cylinder 3 is opened, a feeding ring 4 and a drive mechanism 5 are also included. The feeding ring 4 is coaxially arranged with the output shaft of the discharge motor 61, and at least one arc-shaped through groove 41 is provided on the feeding ring 4. The connection between the container 2 and the metering cylinder 3 is located in the rotation area of ​​the arc-shaped through groove 41, that is, the inner cavity of the metering cylinder 3 is connected to the inner cavity of the container 2 through the arc-shaped through groove 41, and a rotation gap is left between the feeding ring 4 and the top wall of the metering cylinder 3.

[0060] Reference Figure 7 Furthermore, at least one stirring bar 8 is welded and fixed on the feed ring 4. One end of the stirring bar 8 is positioned close to the end of the arc-shaped through groove 41, and the other end of the stirring bar 8 is inclined upwards to directly above the arc-shaped through groove 41. Thus, during the rotation of the feed ring 4, the inclined surface of the stirring bar 8 applies pressure to the nanocellulose powder, causing it to pass through the arc-shaped through groove 41 and enter the inner cavity of the metering cylinder 3. In addition, the stirring bar 8 is provided with multiple material passage holes to improve the stirring and crushing effect of the nanocellulose powder in the container 2 and reduce the possibility of arching of the nanocellulose powder in the container 2.

[0061] Reference Figure 7 Specifically, the drive mechanism 5 is connected to the material container 2 and the feed ring 4, and is used to drive the feed ring 4 to rotate. The drive mechanism 5 includes a drive motor 51 and a rotating rod 52. The drive motor 51 is bolted to the top wall of the material container 2 and is coaxially arranged with the material container 2. The rotating rod 52 is rotatably connected to the material container 2 through a sealed bearing, and the rotating rod 52 is coaxially connected to the output shaft of the drive motor 51 through a coupling. The rotating rod 52 is welded and fixed to the feed ring 4 through a connecting rod.

[0062] Reference Figure 8 and Figure 9 In order to adjust the effective inner volume of the metering cylinder 3 and thus adjust the total amount of nanocellulose dispensed in a single operation, multiple adjustment mechanisms 7 are also included. The adjustment mechanisms 7 are connected to the metering cylinder 3. In this application, the number of adjustment mechanisms 7 and the number of metering cylinders 3 may be the same or different. In this embodiment, the number of adjustment mechanisms 7 and the number of metering cylinders 3 are the same.

[0063] Reference Figure 8 and Figure 9Specifically, the adjustment mechanism 7 includes an adjustment motor 71, a circular rotating rod 72, and a sector-shaped sealing plate 73. There are two adjustment motors 71, two circular rotating rods 72, and two sector-shaped sealing plates 73. The adjustment motor 71 is connected to the metering cylinder through a support bar. The circular rotating rod 72 passes through and is rotatably connected to the metering cylinder 3. The two circular rotating rods 72 are arranged in parallel and are close together with a rotation gap, so that the rotation of the two circular rotating rods 72 will not interfere. The extended end of the circular rotating rod 72 is coaxially connected to the output shaft of the adjustment motor 71. The sector-shaped sealing plate 73 is located in the inner cavity of the metering cylinder 3, and the straight end of the sector-shaped sealing plate 73 is welded and fixed to the circular rotating rod 72. The arc-shaped end of the sector-shaped sealing plate 73 can abut against the inner wall of the metering cylinder 3 after rotation, thereby realizing the separation of the inner cavity of the metering cylinder 3. At this time, the inner cavity of the metering cylinder 3 above the sector-shaped sealing plate 73 is the effective inner cavity volume of a single metering cylinder.

[0064] The implementation principle of a nanocellulose quantitative feeding and mixing device for asphalt modification according to an embodiment of this application is as follows: First, the required total volume of nanocellulose powder is calculated. Then, the inner cavity of the quantitative cylinder 3 is divided by the adjusting mechanism 7 to obtain the effective inner cavity volume of multiple quantitative cylinders 3. Then, the initial nanocellulose powder is fed into the receiving cavity through the feeding port opened on the top wall of the receiving tank 2. Then, the feeding ring 4 is driven to rotate by the driving mechanism 5. While the feeding ring 4 is rotating, the nanocellulose powder passes through the arc-shaped through groove 41 and enters the quantitative cylinder 3. After the feeding ring 4 rotates a certain number of times, the quantitative cylinder 3 is filled with nanocellulose powder, and the feeding ring 4 will also make the nanocellulose powder in the quantitative cylinder 3 flush with the top wall of the quantitative cylinder 3. At this time, the feeding ring 4 is rotated again to block the upper inlet of the quantitative cylinder 3. Then, the outlet at the lower end of the quantitative cylinder 3 is opened by the discharging mechanism 6, and the nanocellulose powder is discharged from the outlet. The nanocellulose is discharged from the metering cylinder 3 and falls into the asphalt mixing tank, completing the quantitative feeding of nanocellulose. The total amount of feeding in one operation is equal to the sum of the inner cavities of multiple metering cylinders 3. The mounting frame 1 provides the installation height for the container 2, which forms a cavity for storing nanocellulose powder. The metering cylinder 3 forms a temporary storage cavity for storing nanocellulose powder fed in one operation. The feed ring 4 allows the nanocellulose powder in the container cavity to enter the inner cavity of the metering cylinder 3 and closes the upper inlet of the metering cylinder 3. The drive mechanism 5 drives the feed ring 4 to rotate, and the discharge mechanism 6 opens and closes the lower outlet of the metering cylinder 3, thus completing the quantitative feeding of nanocellulose in one operation and improving the accuracy of the quantitative feeding of nanocellulose. The adjustment mechanism 7 can change the volume of the nanocellulose powder temporarily stored in the metering cylinder 3, i.e., the effective inner cavity volume, thereby changing the total amount of feeding each time.

[0065] 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 device for quantitative feeding and mixing of nanocellulose for asphalt modification, characterized in that: include: Mounting frame (1), on which a container (2) is mounted, the container (2) being hollow and forming a receiving cavity with a horizontal bottom wall; Multiple metering cylinders (3) are connected to the material container (2), and the inner cavity of the metering cylinder (3) is connected to the receiving cavity; Feeding ring (4), at least one arc-shaped through groove (41) is provided on the feeding ring (4), the connection between the material container (2) and the metering cylinder (3) is located in the rotation area of ​​the arc-shaped through groove (41), and a rotation gap is left between the feeding ring (4) and the top wall of the metering cylinder (3). A drive mechanism (5) for driving the feed ring (4) to rotate, the drive mechanism (5) is connected to the container (2), and the drive mechanism (5) is connected to the feed ring (4); The discharge mechanism (6) is used to block the lower outlet of the metering cylinder (3). The discharge mechanism (6) is connected to the container (2) and the metering cylinder (3). Multiple adjustment mechanisms (7) for separating the inner cavity of the metering cylinder (3) are connected to the metering cylinder (3).

2. The nanocellulose quantitative feeding and mixing equipment for asphalt modification according to claim 1, characterized in that: At least one stirring bar (8) is connected to the feed ring (4). One end of the stirring bar (8) is located near the end of the arc-shaped through groove (41), and the other end is inclined upward to the top of the arc-shaped through groove (41).

3. The nanocellulose quantitative feeding and mixing equipment for asphalt modification according to claim 2, characterized in that: The stirring bar (8) has multiple material passage holes.

4. The nanocellulose quantitative feeding and mixing equipment for asphalt modification according to any one of claims 1-3, characterized in that: The drive mechanism (5) includes: A drive motor (51) is connected to the top wall of the container (2) and is coaxially arranged with the container (2); Rotating rod (52) is rotatably connected to the material container (2), and the rotating rod (52) is coaxially connected to the output shaft of the drive motor (51). The rotating rod (52) is coaxially set and fixedly connected to the feed ring (4).

5. The nanocellulose quantitative feeding and mixing equipment for asphalt modification according to claim 4, characterized in that: The discharge mechanism (6) includes: The discharge motor (61) is connected to the bottom wall of the container (2), and the output shaft of the discharge motor (61) is coaxial with the output shaft of the drive motor (51); The sealing ring (62) is coaxially arranged and connected to the output shaft of the discharge motor (61). There is a rotation gap between the sealing ring (62) and the bottom wall of the metering cylinder (3), and multiple arc-shaped discharge grooves (621) are coaxially opened on the sealing ring (62).

6. The nanocellulose quantitative feeding and mixing equipment for asphalt modification according to claim 5, characterized in that: The sealing ring (62) is connected to multiple elastic striking rods (9), and the rotation of the sealing ring (62) can cause the elastic striking rods (9) to collide with the outer wall of the metering cylinder (3).

7. The nanocellulose quantitative feeding and mixing equipment for asphalt modification according to claim 6, characterized in that: A wear plate (31) is detachably connected to the outer wall of the metering cylinder (3), and the elastic striking rod (9) collides with the outer wall of the metering cylinder (3) through the wear plate (31).

8. The nanocellulose quantitative feeding and mixing equipment for asphalt modification according to claim 1, characterized in that: The adjustment mechanism (7) includes: Two regulating motors (71) are connected to the metering cylinder (3); Two circular rotating rods (72) pass through and are rotatably connected to the metering cylinder (3), and the two circular rotating rods (72) are arranged in parallel with a rotation gap. The extended end of the circular rotating rod (72) is coaxially connected to the output shaft of the regulating motor (71). Two fan-shaped sealing plates (73) are located in the inner cavity of the metering cylinder (3). The straight end of the fan-shaped sealing plate (73) is connected to the circular rotating rod (72), and the arc-shaped end of the fan-shaped sealing plate (73) can abut against the inner wall of the metering cylinder (3).

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