Lignin fiber blowing temporary storage device for high-position asphalt mixing station

Abstract

The invention discloses a lignin fiber blowing temporary storage device for a high-position asphalt mixing station, and relates to the field of asphalt mixing station feeding systems.The lignin fiber blowing temporary storage device comprises a stirring tank and a discharging pipe installed at the top of the stirring tank, and a temporary storage tank is arranged above the discharging pipe and is in butt joint with the discharging pipe through an electromagnetic butterfly valve; a feeding pipe and an exhaust pipe are mounted at the top of the buffer storage tank; the feeding mechanism is used for completely feeding the fiber materials in the buffer storage tank into the stirring tank, the feeding mechanism is mounted on the inner side of the buffer storage tank, and the feeding mechanism comprises a rotating rod rotationally mounted on the top of the inner wall of the buffer storage tank; by means of the feeding mechanism, fiber materials can be fed into the buffer storage tank from the feeding pipe through high-pressure gas, the gas is discharged outwards from the exhaust pipe, the fiber materials are temporarily stored in the buffer storage tank, then the fiber materials in a stirring state are discharged into the stirring tank through the electromagnetic butterfly valve, and therefore the effect of timely feeding is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of asphalt mixing station feeding system, in particular to a lignin fiber blowing and buffering device for high-position asphalt mixing station. BACKGROUND

[0002] The asphalt mixing station is a device for producing asphalt mixture by mixing mineral aggregate, asphalt and other additives. Its main principle is to mix mineral aggregate, asphalt and other additives in a certain proportion, and then heat, dry, screen and other processes under specific conditions to finally produce mixture meeting the requirements of road construction.

[0003] When the conventional asphalt mixing station produces asphalt mixture, an external blowing machine is generally used to add lignin fiber into the mixing barrel. If the total height of the mixing station is high, the material blowing of the external blowing machine will inevitably have problems such as long time and incomplete blowing due to insufficient lift. Moreover, the power and lift of the feeding machine are limited, so the feeding and batching time of the ordinary mixing station is prolonged to completely deliver all the lignin fiber in the pipeline, resulting in delayed mixing time and affecting the time efficiency and production capacity. SUMMARY

[0004] The purpose of the present application is to provide a lignin fiber blowing and buffering device for high-position asphalt mixing station to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: A lignin fiber blowing and buffering device for high-position asphalt mixing station, comprising: a stirring tank and a discharge pipe fixedly installed on the top of the stirring tank, a buffering storage tank is arranged above the discharge pipe, and the buffering storage tank is connected to the discharge pipe through an electromagnetic butterfly valve, a feeding pipe and an exhaust pipe are fixedly installed on the top of the buffering storage tank; further comprising: a feeding mechanism for feeding the fiber material in the buffering storage tank into the stirring tank, the feeding mechanism is installed on the inner side of the buffering storage tank, the feeding mechanism comprises a rotating shaft rotatably installed on the top of the inner wall of the buffering storage tank, and the rotating shaft can stir the fiber material in the buffering storage tank; a filtering mechanism for filtering the air entering the exhaust pipe, the filtering mechanism is installed on the end of the exhaust pipe, and the filtering mechanism comprises a filter screen arranged on the end of the exhaust pipe, and the filter screen can prevent the fiber material from entering the exhaust pipe; a shaking mechanism for unblocking the filter screen, the shaking mechanism is installed on the inner side of the exhaust pipe, and the shaking mechanism comprises a plurality of knock plates symmetrically arranged on the inner side of the exhaust pipe, and the knock plates can shake and unblock the filter screen.

[0006] Preferably, the feeding mechanism further comprises a plurality of mounting rings vertically and equidistantly fixedly installed outside the rotating rod, a plurality of mounting rods centrally and symmetrically distributed are rotatably installed outside the mounting rings, a plurality of stirring rods are equidistantly fixedly installed outside the mounting rods, a plurality of positioning rings vertically and equidistantly distributed are fixedly installed inside the buffer storage tank, the positions of the positioning rings correspond to the positions of the mounting rings one by one, mounting cavities are formed inside the positioning rings, and tooth rings are fixedly installed inside the mounting cavities, one end of the mounting rod extends to the inside of the positioning ring, and a conical wheel fixedly installed at the end of the mounting rod close to the positioning ring is engaged with the tooth ring, a driving motor is fixedly installed at the top of the buffer storage tank, and the output end of the driving motor is fixedly connected with the top end of the rotating rod.

[0007] Preferably, the filtering mechanism further comprises a mounting frame fixedly installed inside the exhaust pipe, a rotating shaft is rotatably installed inside the mounting frame, a driven fan is fixedly installed outside the rotating shaft, a fixed cylinder located below the mounting frame is fixedly installed inside the exhaust pipe, the filter screen is arranged inside the fixed cylinder, a positioning frame is fixedly installed inside the fixed cylinder, the top of the filter screen is in contact with the bottom of the positioning frame, a rotating block is rotatably installed inside the positioning frame, a first supporting rod is fixedly installed at the top of the rotating block, and a prismatic block is fixedly installed at the end of the first supporting rod away from the rotating block, an installation cavity for installing the prismatic block and the first supporting rod is formed at the bottom end of the rotating shaft, a scraping piece is fixedly installed at the end of the rotating block away from the first supporting rod, and the top of the scraping piece is in contact with the bottom of the filter screen.

[0008] Preferably, the filtering mechanism further comprises a metal outer ring fixedly installed outside the filter screen, a metal inner ring is fixedly installed inside the filter screen, the rotating block is rotatably installed inside the metal inner ring, the outer side of the metal outer ring is in contact with the inner side of the fixed cylinder, a plurality of U-shaped sliding plates centrally and symmetrically distributed are fixedly installed between the metal outer ring and the metal inner ring, a sliding cavity for limiting sliding of the U-shaped sliding plate is formed inside the positioning frame, a second supporting rod is fixedly installed at the top of the U-shaped sliding plate, a pressing ball is fixedly installed at the end of the second supporting rod away from the U-shaped sliding plate, a first spring is fixedly installed between the pressing ball and the U-shaped sliding plate, a sliding groove for limiting sliding of the pressing ball is formed at the top of the positioning frame, the knocking plate is located above the positioning frame, the knocking plate is fixedly installed outside the rotating shaft, and the number of the knocking plates corresponds to the number of the pressing balls.

[0009] Preferably, sealing rings are fixedly installed between the mounting rods outside the same mounting ring, and the sealing rings are rotatably installed outside the positioning rings.

[0010] Preferably, a scraping strip is fixedly installed between the vertically corresponding mounting rods, and the outer side of the scraping strip is in contact with the inner side of the positioning ring and the buffer storage tank.

[0011] Preferably, a support cylinder is fixedly installed on the top of the inner wall of the buffer storage tank, and the support cylinder is sleeved on the outer side of the rotating rod.

[0012] Preferably, two limiting rings in symmetrical distribution are fixedly installed on the outer side of the rotating shaft, and the outer side of the limiting ring is in contact with the outer side of the mounting frame.

[0013] Preferably, a guide cylinder is fixedly installed on the bottom of the fixed cylinder, and the inner diameter of the guide cylinder is the same as the inner diameter of the fixed cylinder.

[0014] Preferably, a second spring is fixedly installed between the bottom of the prismatic block and the installation cavity of the rotating shaft.

[0015] Compared with the prior art, the present application has the following beneficial effects: 1、The feeding mechanism can first send the fiber material from the feeding pipe into the buffer storage tank through high-pressure gas, and discharge the gas outward from the exhaust pipe, so that the fiber material is temporarily stored in the buffer storage tank, and then the fiber material in the stirring state is discharged into the stirring tank through the electromagnetic butterfly valve, thereby achieving the effect of timely feeding.

[0016] 2、The filtering mechanism can intercept the fiber strip in the air when the air enters the exhaust pipe, avoid the fiber strip entering the exhaust pipe, and make the plurality of scraping pieces make circular motion along the bottom of the filter screen, so as to facilitate cleaning the fiber strip adhered to the filter screen, thereby facilitating the effect of timely discharging air and improving the safety of the buffer storage tank.

[0017] 3、The material shaking mechanism can make the plurality of knocking plates contact with the plurality of pressing balls during the rotation of the rotating shaft, and the pressing balls cooperate with the metal outer ring and the metal inner ring to make the filter screen in a shaking state, so as to facilitate the discharge of the small fiber strip inside the filter screen and ensure the long-term use of the filter screen, thereby improving the durability of the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the local cross-sectional structure of the buffer storage tank and the feeding pipe in the present application; Figure 3 It is a schematic diagram of the local cross-sectional structure of the positioning ring and the mounting rod in the present application; Figure 4 It is Figure 3 an enlarged structure schematic diagram of area A in the present application; Figure 5It is a local section structure schematic diagram of the exhaust pipe and the mounting frame in the application. Figure 6 It is a local section structure schematic diagram of the positioning frame and the metal outer ring in the application. Figure 7 It is a local section structure schematic diagram of the fixed cylinder and the guide cylinder in the application. Figure 8 It is a local section structure schematic diagram of the prismatic block and the rotating shaft in the application.

[0019] In the figure: 1, stirring tank; 2, feeding pipe; 3, buffer storage tank; 4, electromagnetic butterfly valve; 5, feeding pipe; 6, exhaust pipe; 7, rotating rod; 8, filter screen; 9, knock plate; 10, mounting ring; 11, mounting rod; 12, stirring rod; 13, positioning ring; 14, tooth ring; 15, conical wheel; 16, driving motor; 17, mounting frame; 18, rotating shaft; 19, driven fan; 20, fixed cylinder; 21, positioning frame; 22, rotating block; 23, first supporting rod; 24, prismatic block; 25, scraper; 26, metal outer ring; 27, metal inner ring; 28, U-shaped sliding plate; 29, second supporting rod; 30, pressing ball; 31, first spring; 32, scraping strip; 33, supporting cylinder; 34, limiting ring; 35, guide cylinder; 36, second spring; 37, sealing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0021] Embodiment one: please refer to Figures 1-8 , a kind of lignin fiber blowing buffer device for high bituminous mixing station in the figure, including stirring tank 1 and fixedly installed in the top of stirring tank 1 feeding pipe 2, the top of feeding pipe 2 is provided with buffer storage tank 3, and buffer storage tank 3 is connected with feeding pipe 2 by electromagnetic butterfly valve 4, the top of buffer storage tank 3 is fixedly installed with feeding pipe 5 and exhaust pipe 6, and the fiber material weighed by high-pressure gas is transported into buffer storage tank 3 from feeding pipe 5, and high-pressure gas can be discharged outward from exhaust pipe 6, to avoid that the air pressure in buffer storage tank 3 is too large, then the fiber material in buffer storage tank 3 is discharged into stirring tank 1 by electromagnetic butterfly valve 4.

[0022] The feeding mechanism comprises a rotating rod 7 rotatably installed on the top of the inner wall of the buffer storage tank 3, which can stir the fiber material in the buffer storage tank 3; the feeding mechanism further comprises a plurality of mounting rings 10 vertically and equidistantly fixedly installed on the outer side of the rotating rod 7, a plurality of mounting rods 11 centrally and symmetrically arranged are rotatably installed on the outer side of the mounting ring 10, a plurality of stirring rods 12 are fixedly installed on the outer side of the mounting rod 11 in a staggered manner, when the rotating rod 7 rotates, the mounting ring 10 can drive the mounting rod 11 to rotate, the mounting rod 11 can drive the stirring rod 12 to stir and mix the fiber material in the buffer storage tank 3, which facilitates the rapid discharge of the fiber material in the buffer storage tank 3 into the stirring tank 1; a plurality of positioning rings 13 vertically and equidistantly arranged are fixedly installed on the inner side of the buffer storage tank 3, the positions of the positioning rings 13 correspond to the positions of the mounting rings 10 one by one, an installation cavity is formed in the inner side of the positioning ring 13, and a tooth ring 14 is fixedly installed in the inner side of the installation cavity; one end of the mounting rod 11 extends to the inner side of the positioning ring 13, and a tapered wheel 15 engaged with the tooth ring 14 is fixedly installed on the end of the mounting rod 11 close to the positioning ring 13; when the mounting rod 11 moves along the inner side of the positioning ring 13, the tapered wheel 15 can move along the surface of the tooth ring 14, the tooth ring 14 drives the tapered wheel 15 to rotate, the tapered wheel 15 drives the mounting rod 11 to rotate, the mounting rod 11 drives the stirring rod 12 to rotate, the stirring efficiency of the stirring rod 12 is improved, the fiber material is kept in a flowing state, the fiber material is discharged rapidly, and thus the fiber material is discharged into the stirring tank 1 in time; a driving motor 16 is fixedly installed on the top of the buffer storage tank 3, the output end of the driving motor 16 is fixedly connected with the top end of the rotating rod 7, so that the driving motor 16 can drive the rotating rod 7 to rotate; a sealing ring 37 is fixedly installed between the mounting rods 11 on the same mounting ring 10, the sealing ring 37 is rotatably installed on the outer side of the positioning ring 13, so that the sealing ring 37 provides sealing for the positioning ring 13 and prevents the fiber material from entering the positioning ring 13; a scraping strip 32 is fixedly installed between the vertically corresponding mounting rods 11, and the outer side of the scraping strip 32 is in contact with the inner side of the positioning ring 13 and the buffer storage tank 3, so that the mounting rod 11 can drive the scraping strip 32 to move along the outer side of the buffer storage tank 3 and the positioning ring 13, and the fiber strips on the inner side of the buffer storage tank 3 and the positioning ring 13 are scraped downward; a supporting cylinder 33 is fixedly installed on the top of the inner wall of the buffer storage tank 3, the supporting cylinder 33 is sleeved on the outer side of the rotating rod 7, so that the supporting cylinder 33 provides support for the outer side of the rotating rod 7 and improves the stability of the rotation of the rotating rod 7.

[0023] Embodiment two: please refer to Figures 2-8The embodiment further illustrates the first embodiment. The filtering mechanism in the drawing includes a filter screen 8 arranged at the end of the exhaust pipe 6, which can prevent the fiber material from entering the exhaust pipe 6. The filtering mechanism further includes a mounting frame 17 fixedly arranged on the inner side of the exhaust pipe 6. The inner side of the mounting frame 17 is rotatably arranged with a rotating shaft 18. The outer side of the rotating shaft 18 is fixedly arranged with a driven fan 19. The airflow entering the exhaust pipe 6 can drive the rotating shaft 18 to rotate through the driven fan 19. The inner side of the exhaust pipe 6 is fixedly arranged with a fixed cylinder 20 below the mounting frame 17. The filter screen 8 is arranged on the inner side of the fixed cylinder 20. The inner side of the fixed cylinder 20 is fixedly arranged with a positioning frame 21. The top of the filter screen 8 is in contact with the bottom of the positioning frame 21. The inner side of the positioning frame 21 is rotatably arranged with a rotating block 22. The top of the rotating block 22 is fixedly arranged with a first supporting rod 23. The end of the first supporting rod 23 away from the rotating block 22 is fixedly arranged with a prismatic block 24. The bottom end of the rotating shaft 18 is arranged with an installation cavity for the prismatic block 24 and the first supporting rod 23. When the rotating shaft 18 rotates, the prismatic block 24 can be driven to rotate. The prismatic block 24 drives the rotating block 22 to rotate through the first supporting rod 23. The end of the rotating block 22 away from the first supporting rod 23 is fixedly arranged with a scraping piece 25. The top of the scraping piece 25 is in contact with the bottom of the filter screen 8. When the rotating block 22 rotates, the scraping piece 25 can make circular motion along the bottom of the filter screen 8. The scraping piece 25 scrapes the fiber strips adhered to the bottom of the filter screen 8 downward. The outer side of the rotating shaft 18 is fixedly arranged with two limiting rings 34 symmetrically distributed. The outer side of the limiting ring 34 is in contact with the outer side of the mounting frame 17, which improves the stability of the rotating shaft 18.

[0024] Example three: please refer to Figures 5-8The embodiment further illustrates other embodiments. The material shaking mechanism in the drawing includes a plurality of knock plates 9 arranged in a central symmetry inside the exhaust pipe 6, which can shake the filter screen 8 to clear the blockage. The material shaking mechanism further includes a metal outer ring 26 fixedly installed outside the filter screen 8, and a metal inner ring 27 fixedly installed inside the filter screen 8. The rotating block 22 is rotatably installed inside the metal inner ring 27. The outer side of the metal outer ring 26 is in contact with the inner side of the fixed cylinder 20. A plurality of U-shaped sliding plates 28 arranged in a central symmetry are fixedly installed between the metal outer ring 26 and the metal inner ring 27. The inner side of the positioning frame 21 is provided with a sliding cavity for limiting the sliding of the U-shaped sliding plate 28. The top of the U-shaped sliding plate 28 is fixedly installed with a second supporting rod 29. The end of the second supporting rod 29 away from the U-shaped sliding plate 28 is fixedly installed with a pressing ball 30. The first spring 31 is fixedly installed between the pressing ball 30 and the U-shaped sliding plate 28. The top of the positioning frame 21 is provided with a sliding groove for limiting the sliding of the pressing ball 30. The knock plate 9 is located above the positioning frame 21 and is fixedly installed outside the rotating shaft 18. The number of knock plates 9 corresponds to the number of pressing balls 30. When the rotating shaft 18 rotates, the knock plate 9 can be in contact with the pressing ball 30 to push the pressing ball 30 to move downward. The pressing ball 30 compresses the first spring 31 and pushes the U-shaped sliding plate 28 to move along the sliding cavity of the positioning frame 21 through the second supporting rod 29. The U-shaped sliding plate 28 drives the filter screen 8 to move along the inner side of the fixed cylinder 20 through the metal outer ring 26 and the metal inner ring 27. When the knock plate 9 moves away from the pressing ball 30, the pressing ball 30 is reset by the rebound force of the first spring 31. The pressing ball 30 can reset the U-shaped sliding plate 28 through the second supporting rod 29 to reset the filter screen 8 upward. Thus, the filter screen 8 can be in an up-and-down shaking state with the circumferential movement of the knock plate 9, which facilitates the discharge of the fiber material inside the filter screen 8 and avoids blockage. The bottom of the fixed cylinder 20 is fixedly installed with a guide cylinder 35, and the inner diameter of the guide cylinder 35 is the same as the inner diameter of the fixed cylinder 20. When the metal outer ring 26 moves downward, it can enter the guide cylinder 35 to provide guidance for the movement of the metal outer ring 26. The bottom of the prismatic block 24 is fixedly installed with the second spring 36 between the mounting cavity of the rotating shaft 18. When the metal inner ring 27 moves downward, it can drive the rotating block 22 to move downward. The rotating block 22 pulls the prismatic block 24 downward through the first supporting rod 23. The prismatic block 24 can compress the second spring 36. The prismatic block 24 can reset the rotating block 22 through the first supporting rod 23, and the scraping piece 25 can be close to the filter screen 8.

[0025] Working principle: first, through the high pressure air after the fiber material from the weighing pipe 5 into the buffer storage tank 3, air into the exhaust pipe 6, and through the filter screen 8 of the fiber strip in the air filtration, make air from the exhaust pipe 6, at the same time, the airflow generated by the driven fan 19 rotation, driven fan 19 drive shaft 18 rotation, shaft 18 through the prismatic block 24 drive first branch 23 rotation, first branch 23 drive rotating block 22 along the metal inner ring 27 inside rotation, rotating block 22 drive wiper 25 along the bottom of the filter screen 8 do circular motion, the filter screen 8 bottom of the fiber strip adhered to scrape off, at the same time, the rotating shaft 18 drive multiple knock plate 9 do synchronous circular motion, when the knock plate 9 and the pressure ball 30 contact, knock plate 9 push the pressure ball 30 along the slide slot in the positioning frame 21 down, the pressure ball 30 drive second branch 29 move, and compress the first spring 31, the second branch 29 push the U-shaped slide plate 28 along the slide cavity in the positioning frame 21 move, make the U-shaped slide plate 28 through the metal outer ring 26 and metal inner ring 27 drive filter screen 8 along the inside of the fixed cylinder 20 move, and when the knock plate 9 away from the pressure ball 30, use the first spring 31 reset the pressure ball 30, the pressure ball 30 through the second branch 29 pull the U-shaped slide plate 28 reset, the U-shaped slide plate 28 can be through the metal inner ring 27 and metal outer ring 26 pull the filter screen 8 reset, thus, with the rotation of the rotating shaft 18, the filter screen 8 can be in the state of up and down shaking, and cooperate with the wiper 25 on the bottom of the filter screen 8 cleaning, avoid the filter screen 8 appear blockage, then, drive motor 16 drive rotating rod 7 rotation, rotating rod 7 drive multiple installation ring 10 synchronous rotation, make the installation ring 10 drive installation rod 11 do circular motion, installation rod 11 drive conical wheel 15 along the surface of the gear ring 14 movement, make the gear ring 14 drive conical wheel 15 rotation, conical wheel 15 can drive installation rod 11 rotation, make installation rod 11 drive multiple stirring rod 12 rotation, installation rod 11 can cooperate with the stirring rod 12 in the buffer storage tank 3 of the fiber material stirring, keep the fiber material in the state of flow, finally, the electromagnetic butterfly valve 4 open, make the fiber material in the buffer storage tank 3 through the discharge pipe 2 into the stirring tank 1 processing, and the next batch of fiber material into the buffer storage tank 3 for temporary storage, so as to achieve the effect of timely feeding.

[0026] It should be noted that in this article, such as first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0027] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous changes, modifications, substitutions and variations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A lignin fiber blowing and buffering device for high-level asphalt mixing plants, characterized in that, include: A mixing tank (1) and a discharge pipe (2) installed on the top of the mixing tank (1). A slow storage tank (3) is provided above the discharge pipe (2), and the slow storage tank (3) is connected to the discharge pipe (2) through a solenoid butterfly valve (4). A feed pipe (5) and an exhaust pipe (6) are installed on the top of the slow storage tank (3). Also includes: A feeding mechanism is used to completely feed the fiber material in the slow storage tank (3) into the mixing tank (1). The feeding mechanism is installed on the inner side of the slow storage tank (3). The feeding mechanism includes a rotating rod (7) that is rotatably installed on the top of the inner wall of the slow storage tank (3). The rotating rod (7) can stir the fiber material in the slow storage tank (3). A filter mechanism is used to filter the air entering the exhaust pipe (6). The filter mechanism is installed at the end of the exhaust pipe (6). The filter mechanism includes a filter screen (8) disposed at the end of the exhaust pipe (6). The filter screen (8) can prevent fibrous material from entering the exhaust pipe (6). The shaking mechanism is used to clear the blockage of the filter screen (8). The shaking mechanism is installed on the inside of the exhaust pipe (6). The shaking mechanism includes a plurality of tapping plates (9) arranged symmetrically on the inside of the exhaust pipe (6). The tapping plates (9) can shake the filter screen (8) to clear the blockage.

2. The lignin fiber blowing and buffering device for high-level asphalt mixing plants according to claim 1, characterized in that: The feeding mechanism also includes multiple mounting rings (10) that are vertically and equidistantly installed on the outside of the rotating rod (7). Multiple mounting rods (11) that are centrally symmetrically distributed are rotatably installed on the outside of the mounting rings (10). Multiple stirring rods (12) are installed on the outside of the mounting rods (11). Multiple positioning rings (13) that are vertically and equidistantly distributed are installed on the inside of the slow storage tank (3). The positions of the positioning rings (13) correspond one-to-one with the positions of the mounting rings (10). An installation cavity is opened on the inside of the positioning rings (13). A toothed ring (14) is installed on the inside of the installation cavity. One end of the mounting rod (11) extends to the inside of the positioning ring (13). A conical wheel (15) that meshes with the toothed ring (14) is installed on one end of the mounting rod (11). A drive motor (16) is installed on the top of the slow storage tank (3). The output end of the drive motor (16) is fixedly connected to the top of the rotating rod (7).

3. A lignin fiber blowing and buffering device for high-level asphalt mixing plants according to claim 2, characterized in that: The filtration mechanism further includes a mounting bracket (17) installed inside the exhaust pipe (6). A rotating shaft (18) is rotatably mounted inside the mounting bracket (17), and a driven fan (19) is mounted outside the rotating shaft (18). A fixed cylinder (20) is fixedly mounted inside the exhaust pipe (6). The filter screen (8) is disposed inside the fixed cylinder (20). A positioning frame (21) is installed inside the fixed cylinder (20), and the top of the filter screen (8) contacts the bottom of the positioning frame (21). A rotating block (22) is rotatably mounted on the inner side of the positioning frame (21). A first support rod (23) is fixedly mounted on the top of the rotating block (22), and a prism block (24) is mounted on one end of the first support rod (23). An installation cavity for mounting the prism block (24) and the first support rod (23) is opened at the bottom end of the rotating shaft (18). A scraper (25) is mounted on the end of the rotating block (22) away from the first support rod (23), and the top of the scraper (25) is in contact with the bottom of the filter screen (8).

4. A lignin fiber blowing and buffering device for a high-level asphalt mixing plant according to claim 3, characterized in that: The shaking mechanism also includes a metal outer ring (26) installed on the outside of the filter screen (8), a metal inner ring (27) installed on the inside of the filter screen (8), the rotating block (22) being rotatably installed on the inside of the metal inner ring (27), the outside of the metal outer ring (26) contacting the inside of the fixed cylinder (20), a plurality of U-shaped sliding plates (28) being installed between the metal outer ring (26) and the metal inner ring (27), and the inner side of the positioning frame (21) being provided with a space for the U-shaped sliding plates (28). The sliding cavity is limited by the sliding. A second support rod (29) is installed on the top of the U-shaped sliding plate (28). A pressure ball (30) is installed at one end of the second support rod (29). A first spring (31) is installed between the pressure ball (30) and the U-shaped sliding plate (28). A sliding groove is opened on the top of the positioning frame (21) for the pressure ball (30) to be limited and slid. The knocking plate (9) is fixedly installed on the outside of the rotating shaft (18). The number of knocking plates (9) corresponds to the number of pressure balls (30).

5. A lignin fiber blowing and buffering device for a high-level asphalt mixing plant according to claim 2, characterized in that: A sealing ring (37) is installed between the mounting rods (11) on the outside of the same mounting ring (10), and the sealing ring (37) is rotatably mounted on the outside of the positioning ring (13).

6. A lignin fiber blowing and buffering device for a high-level asphalt mixing plant according to claim 2, characterized in that: A scraper (32) is installed between the vertically corresponding mounting rods (11), and the outer side of the scraper (32) is in contact with the positioning ring (13) and the inner side of the slow storage tank (3).

7. A lignin fiber blowing and buffering device for a high-level asphalt mixing plant according to claim 2, characterized in that: The inner wall of the slow storage tank (3) is fitted with a support cylinder (33), which is sleeved on the outside of the rotating rod (7).

8. A lignin fiber blowing and buffering device for a high-level asphalt mixing plant according to claim 3, characterized in that: Two limiting rings (34) are installed on the outer side of the rotating shaft (18), and the outer side of the limiting rings (34) is in contact with the outer side of the mounting bracket (17).

9. A lignin fiber blowing and buffering device for a high-level asphalt mixing plant according to claim 4, characterized in that: The bottom of the fixed cylinder (20) is equipped with a guide cylinder (35), and the inner diameter of the guide cylinder (35) is the same as the inner diameter of the fixed cylinder (20).

10. A lignin fiber blowing and buffering device for a high-level asphalt mixing plant according to claim 4, characterized in that: A second spring (36) is installed between the bottom of the prism block (24) and the mounting cavity of the rotating shaft (18).

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