A method for removing asphaltic material particles

Abstract

The application discloses a kind of asphalt rubber particle removal methods, belong to asphalt coiled material manufacturing technical field, including the following steps: S1, feeding: setting first cleaning roller and second cleaning roller of opposite rotation, so that asphalt rubber material enters the gap between first cleaning roller and second cleaning roller from top;S2, particle removal: first cleaning roller extrudes asphalt rubber material to the direction of second cleaning roller, and the particle in asphalt rubber material is pressed into the annular groove on the outer wall of second cleaning roller;S3, scraping: provide left scraper assembly, first cleaning roller and second cleaning roller continuously rotate, so that left scraper assembly is inserted into annular groove, and the particle in annular groove is scraped off, reduces the particulate matter in asphalt rubber material, and improves the surface quality of production asphalt coiled material.

Description

Technical Field

[0001] This invention relates to the field of asphalt roll manufacturing technology, and specifically to a method for removing asphalt rubber particles. Background Technology

[0002] Asphalt roofing membranes generally refer to asphalt waterproofing membranes. These are roll-formed materials made from asphalt, reinforcing agents, and surface-applied anti-adhesion materials, also known as roofing felt. They are commonly used in adhesive waterproofing layers. Asphalt waterproofing membranes include both reinforced and unreinforced types, and are widely used in waterproofing projects with high requirements and in buildings with complex structures. During the production of asphalt roofing membranes, the asphalt compound undergoes a modification process before being transported to the production line. While the basic modification steps are the same, there are many types of modified asphalt products with different formulations. After mixing, some of the asphalt compound is transferred to the base fabric on the production line. Due to inherent defects in the crushing and mixing processes, a certain amount of particulate matter remains in the asphalt compound. This particulate matter adheres to the base fabric, causing defects such as bulges and pores on the surface of the finished membrane, reducing its surface quality. To improve the yield and surface quality of the finished membrane, it is necessary to remove the particulate matter from the asphalt before coating.

[0003] A patent with publication number CN216068206U discloses a particle screening device for asphalt production, belonging to the field of asphalt production technology. It addresses the problems of existing screening equipment's inability to effectively screen asphalt particles and the short service life of the screens. The device includes a loading assembly comprising a loading box. Inside the loading box, a partition is fixed, dividing the interior into a sliding chamber and a collection chamber. A sliding box is slidably mounted inside the sliding chamber, and a sliding plate is fixed inside the collection chamber. A discharge port is provided at the end face of the loading box. A support plate is fixed above the loading box, and a lifting assembly is mounted on the support plate. Below the lifting assembly is a screening assembly. This device uses a movable screen to screen particles in asphalt material. However, long-term use results in low screening efficiency and requires screen cleaning. The screening effect varies for asphalt compounds with different modified formulations, and the structure is complex and maintenance is cumbersome. Summary of the Invention

[0004] The purpose of this invention is to provide a method for removing asphalt rubber particles, which solves the problems of poor surface quality of finished asphalt rolls caused by the presence of particles in existing asphalt rubber during coating, as well as the complex structure of the screening particles and the need for frequent maintenance.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows:

[0006] A method for removing asphalt rubber particles specifically includes the following steps:

[0007] S1. Feeding: A first and second cleaning rollers rotating in opposite directions are set so that the asphalt material enters from above into the gap between the first and second cleaning rollers;

[0008] S2, Particle Removal: The first cleaning roller squeezes the asphalt compound towards the second cleaning roller, pressing the particles in the asphalt compound into the annular groove on the outer wall of the second cleaning roller;

[0009] S3. Scraping: A left scraper assembly is provided. The first cleaning roller and the second cleaning roller rotate continuously, causing the left scraper assembly to extend into the annular groove and scrape off the particles in the annular groove, thereby improving the utilization rate of asphalt and the surface quality of the asphalt roll.

[0010] Preferably, after step S3, the method further includes: step S4, recycling: the material trough collects granular asphalt rubber for recycling and reuse, thereby reducing environmental pollution.

[0011] Preferably, in step S2, a right scraper assembly is provided that is movably connected to one side of the first cleaning roller. The right scraper assembly contacts the surface of the first cleaning roller. When the first cleaning roller rotates, the right scraper assembly scrapes off the asphalt material on the surface of the first cleaning roller to ensure that the first cleaning roller can maintain stable unloading for a long time.

[0012] Preferably, the right scraper assembly is provided with a first blade, a first drive cylinder, and a first limiting rod. The extension and retraction movement of the first drive cylinder pushes the first blade to rotate around its own center. One end of the first blade is attached to the first limiting rod, so that the position of the first blade is fixed. The posture of the first blade is adjusted by rotating the first limiting rod. After the posture of the first blade changes, the distance and angle between the first blade and the surface of the first cleaning roller change, which is used to fine-tune the working state of the first cleaning roller and make scraping smoother.

[0013] Preferably, the left scraper assembly includes a second blade, a second drive cylinder, and a second limiting rod. The extension and retraction movement of the second drive cylinder pushes the second blade to rotate around its own center. One end of the second blade is attached to the second limiting rod, thus fixing the position of the second blade. The angle between the second blade and the surface of the second cleaning roller, as well as the depth of insertion into the annular groove, can be adjusted by adjusting the posture of the second blade. The rubber particles are automatically removed by the rotation of the second cleaning roller, and the action of peeling off the rubber particles can be carried out stably for a long time.

[0014] Preferably, the limiting part at one end of the second blade engages with the second limiting rod to stabilize the posture of the second blade, and the multiple scraping teeth at the other end of the second blade extend into the multiple annular grooves one by one. During the rotation of the second cleaning roller, the asphalt material in the annular grooves is scraped out to clean the roller surface and the material in the annular grooves, ensuring that the second cleaning roller can operate stably for a long time.

[0015] Preferably, a baffle assembly is provided, which encloses both sides of the second and first cleaning rollers. The width of the asphalt discharge towards the base fabric can be controlled by adjusting the spacing of the baffle assembly, and the discharge position of the asphalt compound can be adjusted by adjusting the position of the baffle assembly relative to the second and first cleaning rollers. This allows for rapid adjustment during production and during production switchovers, meeting the needs of producing different types of modified asphalt compounds.

[0016] Preferably, the material blocking assembly includes a left baffle, a left handwheel, a right baffle, a right handwheel, and a guide rod. Rotating the left handwheel pushes the left baffle to move on the guide rod, and rotating the right handwheel pushes the right baffle to move on the guide rod. The position and spacing of the left and right baffles can be controlled to adjust the unloading width and position of the asphalt compound, making it suitable for use in the production of different types of asphalt rolls.

[0017] Preferably, a movable component connected to the first cleaning roller is provided. The movable component moves toward the second cleaning roller, causing the first cleaning roller to move toward the second cleaning roller, thereby changing the distance between the first cleaning roller and the second cleaning roller to control the unloading flow rate of the asphalt compound, thus meeting the needs of producing rolls of different thicknesses.

[0018] Preferably, the moving component includes a drive handwheel, a screw jack, a transmission rod, and a slide. Rotating the drive handwheel drives the transmission rod to rotate, and the transmission rod synchronously drives the screw jack to rotate. The screw jack pushes the slide to move, and the slide drives the first cleaning roller to move toward the second cleaning roller. The distance between the first cleaning roller and the second cleaning roller changes, thereby changing the asphalt unloading flow rate and ensuring the stability of the thickness of the produced roll material.

[0019] Preferably, a power assembly connected to the second cleaning roller is provided, the power assembly driving the second cleaning roller to rotate, the second cleaning roller driving the first cleaning roller to rotate in the same direction at the same speed, and the discharge flow rate of the asphalt compound is adjusted by controlling the speed of the power assembly, which is used to adjust the production speed and control the thickness of the coil coating.

[0020] The beneficial effects of this invention are as follows:

[0021] (1) The asphalt rubber particle removal method uses a first and second cleaning roller rotating in opposite directions to press the particles in the asphalt rubber into the annular groove on the second cleaning roller for collection. The extrusion method can uniformly remove particles of different diameters. Taking advantage of the compressibility and varying sizes of asphalt particles, this method can be used for particle removal in the production of modified asphalt with different formulations. Adjusting the distance between the first and second cleaning rollers can also control the flow rate of asphalt adhering to the base fabric surface, thereby controlling the thickness of the asphalt roll. After the first and second cleaning rollers collect the asphalt particles, the right and left scraper components continuously scrape the particles from the roller surface and the annular groove into the material trough. After a certain amount of asphalt particles are collected in the material trough, they are recycled and refined, allowing the asphalt to be reused, improving the utilization rate of asphalt and reducing environmental pollution. This asphalt particle removal method can maintain a stable particle removal effect even after long-term use, which can reduce the occurrence of cavitation and bulging on the surface of the produced asphalt roll.

[0022] (2) In this method for removing asphalt rubber particles, the contact distance between the scraper assembly and the roller surface or the annular groove can be adjusted by adjusting the posture of the right scraper assembly and the left scraper assembly. This can determine the scraping thickness and depth, so that the scraper can fully remove the rubber on the first and second cleaning rollers. The stable distance between the cleaning rollers ensures that the amount of asphalt rubber particles removed is stable and the asphalt flow rate is constant, resulting in high uniformity of asphalt coating and good quality of rolled material. By adjusting the degree of insertion of the scraper teeth on the second blade into the annular groove, the rubber adhering in the annular groove can be completely removed. This method can be used to clean the annular groove, which is convenient for post-use maintenance and reduces the difficulty of operation for maintenance personnel.

[0023] (3) The method for removing asphalt particles controls the position of asphalt adhering to the base fabric and the width of the produced roll by adjusting the left and right baffles between the first and second cleaning rollers, so as to meet the needs of producing asphalt rolls of different widths. When the base fabric is replaced or the base fabric is shifted, the direction of asphalt discharge can be finely adjusted. The distance between the first and second cleaning rollers and the rotation speed of the first and second cleaning rollers can be adjusted by adjusting the rotation speed of the moving component and the power component. The discharge flow rate of asphalt can be precisely controlled by the distance and rotation speed control, the discharge flow rate of asphalt can be stabilized, and the uniformity of asphalt drop on the surface of the base fabric can be guaranteed. Attached Figure Description

[0024] Figure 1 A flowchart of the asphalt binder particle removal method provided by the present invention;

[0025] Figure 2 An isometric view of the asphalt rubber particle removal device provided by the present invention;

[0026] Figure 3 This is a front view of the asphalt particle removal device provided by the present invention;

[0027] Figure 4 This is a side view of the asphalt rubber particle removal device provided by the present invention;

[0028] Figure 5 This is a top view of the asphalt particle removal device provided by the present invention;

[0029] Figure 6 for Figure 3 Cross-sectional view along the upper AA line;

[0030] Figure 7 An isometric view of the particulate cleaner provided by the present invention;

[0031] Figure 8 A front view of the particulate cleaner provided by the present invention;

[0032] Figure 9 for Figure 8 Cross-sectional view along the upper BB line;

[0033] Figure 10 An isometric view of the second cleaning roller provided by the present invention;

[0034] Figure 11 A front view of the second cleaning roller provided by the present invention;

[0035] Figure 12 for Figure 10 Cross-sectional view along the upper CC line;

[0036] Figure 13 An isometric view of the second scraper provided by the present invention.

[0037] Figure label:

[0038] 1. Frame; 2. Fabric feeding device; 21. Guide roller; 22. Pressure roller assembly; 221. Lifter; 222. Pressure roller; 223. Roller groove; 23. Coating support roller; 24. Power roller; 241. Upper roller; 242. Lower roller; 243. Pressure regulating cylinder; 3. Particle remover; 31. First removal roller; 32. Second removal roller; 321. Roller; 322. Roller shaft; 323. Circular groove; 33. Power assembly; 34. Material blocking assembly; 341. Left baffle; 342. Left handwheel; 34 3. Right baffle; 344. Right handwheel; 345. Guide rod; 35. Moving assembly; 351. Drive handwheel; 352. Screw jack; 353. Transmission rod; 354. Slide; 36. Right scraper assembly; 361. First blade; 362. First drive cylinder; 363. First limit rod; 37. Left scraper assembly; 371. Second blade; 372. Second drive cylinder; 373. Second limit rod; 374. Limiting part; 375. Scraper tooth; 4. Material trough; 41. Roller conveyor; 42. Roller. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] like Figures 1-13 As shown, this invention discloses a method for removing asphalt rubber particles, specifically including the following steps:

[0042] S1, Feeding: A first cleaning roller 31 and a second cleaning roller 32 rotating in opposite directions are set up so that the asphalt adhesive enters from above into the gap between the first cleaning roller 31 and the second cleaning roller 32, flows downward through the gap between the first cleaning roller 31 and the second cleaning roller 32, and the base fabric is below the first cleaning roller 31 and the second cleaning roller 32. After the asphalt adhesive is mixed, it falls onto the base fabric after passing through the first cleaning roller 31 and the second cleaning roller 32.

[0043] S2, Particle Removal: The asphalt rubber compound is discharged downward onto the base fabric by the squeezing and centrifugal action of the first cleaning roller 31 and the second cleaning roller 32. At the same time, the first cleaning roller 31 squeezes the asphalt rubber compound towards the second cleaning roller 32, pressing the particles in the asphalt rubber compound into the annular groove 323 on the outer wall of the second cleaning roller 32. The first cleaning roller 31 and the second cleaning roller 32 can squeeze asphalt particles of different diameters, making them embedded in the annular groove 323.

[0044] S3, scraping: The first cleaning roller 31 and the second cleaning roller 32 rotate continuously, providing the left scraper assembly 37. The left scraper assembly 37 extends into the annular groove 323 and scrapes the particles in the annular groove 323 into the material trough 4. The left scraper assembly 37 scrapes the asphalt rubber material on the outer wall of the second cleaning roller 32 and in the annular groove 323, ensuring that the second cleaning roller 32 can work continuously and stably.

[0045] S4. Recycling: The material tank 4 collects granular asphalt binder for recycling and reuse. After refining the granular asphalt binder, it is added back into the asphalt binder, which improves the utilization rate of asphalt and reduces environmental pollution in production.

[0046] Preferably, in step S2, a right scraper assembly 36 is provided that is movably connected to one side of the first cleaning roller 31. The right scraper assembly 36 contacts the surface of the first cleaning roller 31, and scrapes off the asphalt adhesive on the surface of the first cleaning roller 31 when the first cleaning roller 31 rotates.

[0047] The right scraper assembly 36 is equipped with a first blade 361, a first drive cylinder 362, and a first limiting rod 363. The first drive cylinder 362 extends and retracts, causing the first blade 361 to rotate around its center. One end of the first blade 361 is attached to the first limiting rod 363, thus fixing the position of the first blade 361. The posture of the first blade 361 is adjusted by rotating the first limiting rod 363. After the posture of the first blade 361 changes, the distance and angle between it and the surface of the first cleaning roller 31 change. The larger the angle between the first blade 361 and the surface tangent of the first cleaning roller 31, the smaller the resistance, the closer the distance, and the better the scraping effect.

[0048] The left scraper assembly 37 includes a second blade 371, a second drive cylinder 372, and a second limiting rod 373. The second drive cylinder 372 extends and retracts to drive the second blade 371 to rotate around its own center. One end of the second blade 371 is attached to the second limiting rod 373, thus fixing the position of the second blade 371. By adjusting the posture of the second blade 371, the angle between the second blade 371 and the surface of the second cleaning roller 32 and the depth of insertion into the annular groove 323 can be adjusted. The larger the tangential angle between the second blade 371 and the surface of the second cleaning roller 32, the smaller the gap left, the closer the blade is to the surface of the second cleaning roller 32, and the higher the degree of cleaning.

[0049] The limiting part 374 at one end of the second blade 371 engages with the second limiting rod 373 to stabilize the posture of the second blade 371. The multiple scraping teeth 375 at the other end of the second blade 371 extend into the multiple annular grooves 323 in a corresponding manner. During the rotation of the second cleaning roller 32, the asphalt material in the annular grooves 323 is scraped out. The scraped material falls into the material trough 4 along the blade direction of the second blade 371.

[0050] Preferably, a baffle assembly 34 is provided, which encloses both sides of the second cleaning roller 32 and the first cleaning roller 31. The spacing of the baffle assembly 34 is adjusted to control the width of the asphalt discharge towards the base fabric. The position of the baffle assembly 34 relative to the second cleaning roller 32 and the first cleaning roller 31 is adjusted to move the asphalt discharge position. The baffle assembly 34, together with the first cleaning roller 31 and the second cleaning roller 32, forms a silo for storing asphalt, which can buffer a certain amount of asphalt and ensure the continuity of asphalt discharge.

[0051] The baffle assembly 34 includes a left baffle 341, a left handwheel 342, a right baffle 343, a right handwheel 344, and a guide rod 345. Rotating the left handwheel 342 pushes the left baffle 341 to move on the guide rod 345, and rotating the right handwheel 344 pushes the right baffle 343 to move on the guide rod 345. By controlling the position and spacing of the left baffle 341 and the right baffle 343, the unloading width and unloading position of the asphalt compound can be adjusted. The volume of the hopper can be precisely adjusted through the handwheel, thereby improving the uniformity of asphalt unloading onto the base fabric.

[0052] Preferably, a movable component 35 connected to the first cleaning roller 31 is provided. The movable component 35 moves toward the second cleaning roller 32, driving the first cleaning roller 31 to move toward the second cleaning roller 32, thereby changing the distance between the first cleaning roller 31 and the second cleaning roller 32 to control the discharge flow rate and discharge state of the asphalt compound.

[0053] The movable component 35 includes a drive handwheel 351, a screw jack 352, a transmission rod 353, and a slide 354. Rotating the drive handwheel 351 drives the transmission rod 353 to rotate, which in turn drives the screw jack 352 to rotate. The screw jack 352 pushes the slide 354 to move, and the slide 354 drives the first cleaning roller 31 to move toward the second cleaning roller 32. The distance between the first cleaning roller 31 and the second cleaning roller 32 changes, thereby changing the asphalt discharge flow rate. By fine-tuning the distance according to the size of the particles in the asphalt compound, the particle removal effect can be optimized.

[0054] Preferably, a power assembly 33 connected to the second cleaning roller 32 is provided. The power assembly 33 drives the second cleaning roller 32 to rotate, and the second cleaning roller 32 drives the first cleaning roller 31 to rotate in the same direction at the same speed. Changing the speed of the power assembly 33 can adjust the discharge flow rate of the asphalt compound. The power assembly 33 provides power for the rotation of the first cleaning roller 31 and the second cleaning roller 32.

[0055] The detailed working process of this asphalt adhesive removal method is as follows:

[0056] Asphalt compound falls from above onto the first cleaning roller 31 and the second cleaning roller 32. Under the combined action of gravity and the rotation of the rollers, it flows downwards. Rotating the left handwheel 342 or the right handwheel 344 adjusts the positions of the left baffle 341 and the right baffle 343, controlling the width and position of the asphalt compound. After being squeezed by the first and second cleaning rollers 31 and 32, the width of the asphalt compound is limited to the gap between the two rollers. The flow rate of the asphalt is controlled by adjusting the rotation speed of the rollers. During the rotation of the second cleaning roller 32, particles from the asphalt compound are removed from the annular groove 323. Once filled, adjust the positions of the right scraper assembly 36 and the left scraper assembly 37 so that the first blade 361 contacts the surface of the first cleaning roller 31. During rotation, remove the asphalt material adhering to the surface of the first cleaning roller 31. The scraping teeth 375 on the second blade 371 enter the annular groove 323, scraping the asphalt particles squeezed into the annular groove 323 into the material trough 4, ensuring that the asphalt flow channel is stable. The first cleaning roller 31 and the second cleaning roller 32 rotate continuously, releasing the asphalt material onto the base fabric. The asphalt particles are collected and fall uniformly into the material trough 4 for recycling and reuse.

[0057] This method for removing asphalt particles can also be used to remove particulate impurities from rolls of other modified granular materials, thereby improving the smoothness of the produced roll surface and preventing the occurrence of local pitting and bulging.

[0058] Example 2

[0059] This invention also discloses an asphalt coating machine for removing asphalt particles. The asphalt coating machine includes a frame 1, a feeding device 2, a particle remover 3, and a material trough 4. The feeding device 2 is disposed in the frame 1, and the particle remover 3 is disposed above the feeding device 2. It can collect granular material from the asphalt adhesive that is about to fall onto the base fabric, and can also control the width of the asphalt adhering to the base fabric and the flow rate of the asphalt adhesive. The material trough 4 is disposed below the particle remover 3 and below the feeding device 2. The particle remover 3 includes a first removal roller 31 and a second removal roller 32. The first cleaning roller 31 and the second cleaning roller 32 can rotate synchronously in opposite directions. The first cleaning roller 31 is slidably connected above the fabric feeding device 2 and can move toward the second cleaning roller 32. The second cleaning roller 32 includes multiple annular grooves 323, which are arranged around the axis of the second cleaning roller 32 on the outer wall of the second cleaning roller 32. The pressure of the rotation between the two rollers presses the particles in the asphalt compound into the annular grooves 323, and the annular grooves 323 remove the granular asphalt. The second cleaning roller 32 is the last step for asphalt to adhere to the base fabric, and plays the role of removing impurities in the asphalt and uniform flow.

[0060] The first cleaning roller 31 is a mirror roller with a smooth surface, resistant to chemical corrosion, and has a long service life. It is combined with the second cleaning roller 32 with annular grooves 323 to complete the feeding and removal of granular adhesive materials. The second cleaning roller 32 also includes a roller 321 and a roller shaft 322. The roller shaft 322 is installed at both ends of the roller 321 and is mounted on the frame 1 through bearing seats. The roller 321 is a hollow roller to reduce inertia, and the annular grooves 323 are arranged on the outer wall of the roller 321.

[0061] Preferably, the particle remover 3 includes a right scraper assembly 36 and a left scraper assembly 37. The right scraper assembly 36 is movably connected to one side of the first cleaning roller 31 and can contact the surface of the first cleaning roller 31 to clean the asphalt material adhering to the surface of the first cleaning roller 31, ensuring the smoothness of the surface of the first cleaning roller 31 and stabilizing the flow rate of asphalt feed. The left scraper assembly 37 is movably connected to one side of the second cleaning roller 32 and can extend into the annular groove 323 to scrape the asphalt material and impurities in the annular groove 323 into the feed trough 4, so that the second cleaning roller 32 can continuously play the role of removing particles.

[0062] The right scraper assembly 36 includes a first blade 361, a first drive cylinder 362, and a first limiting rod 363. One end of the first drive cylinder 362 is connected to the top of the first cleaning roller 31, and the other end is rotatably connected to the first blade 361. The first limiting rod 363 spans the frame 1 and is rotatably connected to one side of the first cleaning roller 31. One end of the first blade 361 is L-shaped and matches the first limiting rod 363. By adjusting the angle of the first limiting rod 363 and the extension / retraction length of the first drive cylinder 362, the contact angle and approach distance between the first blade 361 and the first cleaning roller 31 are adjusted to ensure the right scraper assembly 361... 6. The left scraper assembly 37 can reliably remove the adhesive material from the surface of the first cleaning roller 31. The left scraper assembly 37 includes a second blade 371, a second drive cylinder 372, and a second limiting rod 373. One end of the second drive cylinder 372 is connected to the top of the second cleaning roller 32, and the other end is rotatably connected to the second blade 371. The second limiting rod 373 spans the frame 1 and is rotatably connected to one side of the second cleaning roller 32. The extension and retraction of the second drive cylinder 372 and the rotation of the second limiting rod 373 can adjust the posture of the second blade 371, so that the second blade 371 can accurately extend into the annular groove 323 to remove the asphalt particles in the groove, ensuring continuous working stability.

[0063] Preferably, the second blade 371 includes a limiting part 374 and a plurality of scraping teeth 375. The limiting part 374 is disposed at one end of the second blade 371 and is bent into shape. The second limiting rod 373 is a square tube. The corner of the limiting part 374 and the second limiting rod 373 are engaged to ensure the stability of the second blade 371 during operation. The plurality of scraping teeth 375 are disposed at the other end of the second blade 371. The outward end of the scraping teeth 375 is sharpened to form a sharp corner. The sharp corner extends into the annular groove 323 to complete the scraping of asphalt rubber particles.

[0064] Preferably, the particle remover 3 is also provided with a baffle assembly 34. The baffle assembly 34 is located between the first removal roller 31 and the second removal roller 32, and closes the two sides of the second removal roller 32 and the first removal roller 31 to prevent asphalt material leakage. The baffle assembly 34 includes a left baffle 341, a left handwheel 342, a right baffle 343, a right handwheel 344 and a guide rod 345. The guide rod 345 spans the frame 1 and is located above the first removal roller 31 to ensure the accuracy of the movement of the left baffle 341 and the right baffle 343 and prevent asphalt leakage. The left baffle 341 and the right baffle 343 are slidably connected to the guide rod 345. The left baffle 341 is connected to the left handwheel 342 and the right baffle 343 is connected to the right handwheel 344. The width of the asphalt material falling downward can be controlled by the left handwheel 342 and the right handwheel 344, so that it can be used to produce asphalt rolls of different widths.

[0065] Preferably, the particle remover 3 further includes a moving assembly 35, which is mounted on the frame 1. The moving assembly 35 includes a drive handwheel 351, a screw jack 352, a transmission rod 353, and a slide 354. The ends of the first cleaning roller 31 are respectively mounted on the slide 354. The screw jack 352 is connected to the slide 354. The drive handwheel 351 is connected to the screw jack 352. Both ends of the transmission rod 353 are respectively connected to the screw jack 352. The drive handwheel 351 can simultaneously push the second cleaning roller 32 to move, thereby adjusting the flow rate of the asphalt compound and controlling the screening of particles in the asphalt compound. The screw jack 352 has a self-locking capability, which can keep the distance between the two rollers stable during production.

[0066] Preferably, the asphalt particle removal method is further provided with a power assembly 33, which is connected to the second cleaning roller 32. The second cleaning roller 32 meshes with the end gear teeth of the first cleaning roller 31. The power assembly 33 is a geared motor, which is connected to the second cleaning roller 32 through a chain to provide the feeding speed. The speed of the geared motor can also control the flow rate of asphalt.

[0067] Furthermore, the cross-section of the annular groove 323 is an outward flared shape, that is, the cross-section of a single annular groove 323 is trapezoidal. The trapezoidal cross-section is used to collect rubber particles, which makes it easier for the second blade 371 to extend into the annular groove 323 for cleaning, reducing the difficulty of cleaning and improving the cleanliness after cleaning. The annular grooves 323 are evenly distributed in the direction of the axis of the second cleaning roller 32.

[0068] Preferably, the material trough 4 includes a roller conveyor 41 installed below the material trough 4 and a roller 42 installed at the bottom of the material trough 4. The material trough 4 is located to the side and below the second cleaning roller 32, and is vertically downward to the left scraper assembly 37. The material trough 4 uses the roller 42 to slide on the roller conveyor 41 to complete the receiving and feeding of material. After a certain amount of granular asphalt rubber is collected in the material trough 4, the granular asphalt rubber can be crushed and reused, which improves the utilization rate of asphalt rubber.

[0069] Preferably, the fabric feeding device 2 includes a guide roller 21, a pressure roller assembly 22, a coating support roller 23, and a power roller 24 arranged in sequence, used to complete the introduction of the base fabric, the application of asphalt, and the discharge of the asphalt roll material. The guide roller 21 is installed at one end of the fabric output. The pressure roller assembly 22 includes a lifter 221 and a pressure roller 222. The pressure roller 222 is connected to the lifter 221 and can be raised and lowered in a direction perpendicular to the fabric surface. The pressure roller 222 is located above the base fabric and below the other rollers. The pressure on the fabric surface can be adjusted by adjusting the height of the pressure roller 222, which is used to smooth and press the asphalt on the fabric surface. The pressure roller 222 is provided with a hollowed-out roller groove 223 for suction. Excess asphalt material is removed to prevent it from accumulating on the fabric surface. The diameter of the coating support roller 23 is larger than that of the other rollers and is located below the fabric surface. It works with the power roller 24 to ensure the stability of the fabric surface during asphalt coating and prevent quality defects caused by fabric collapse. The power roller 24 includes an upper roller 241, a lower roller 242, and a pressure regulating cylinder 243. The upper roller 241 and the lower roller 242 rotate in opposite directions and are engaged by gears at their ends, so that the two rollers rotate at the same speed. The upper roller 241 is connected to the pressure regulating cylinder 243. Driven by the pressure regulating cylinder 243, the upper roller 241 can move in a direction perpendicular to the fabric surface to adjust the pressure applied to the fabric, so that the base fabric can remain flat.

[0070] The working process of this coating machine is as follows:

[0071] The base fabric passes under the particle remover 3 via the power roller 24 and is then supported by the coating support roller 23. The coating area of ​​the base fabric remains horizontal. After passing the coating support roller 23, the base fabric moves downward under the action of the pressure roller assembly 22 while the fabric surface remains taut. Finally, it is horizontally discharged outward via the guide roller 21. Meanwhile, the asphalt above the particle remover 3 is crushed into a certain thickness of asphalt material and falls onto the surface of the base fabric as the first removal roller 31 and the second removal roller 32 rotate at a constant speed, thus completing the action of removing particles and releasing asphalt.

[0072] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A method for removing asphalt rubber particles, specifically comprising the following steps: S1. Feeding: A first cleaning roller (31) and a second cleaning roller (32) rotating in opposite directions are set so that the asphalt rubber enters from above into the gap between the first cleaning roller (31) and the second cleaning roller (32); S2, Particle removal: The first cleaning roller (31) squeezes the asphalt rubber material towards the second cleaning roller (32), pressing the particles in the asphalt rubber material into the annular groove (323) on the outer wall of the second cleaning roller (32); S3, scraping: A left scraper assembly (37) is provided, wherein the first cleaning roller (31) and the second cleaning roller (32) rotate continuously, so that the left scraper assembly (37) extends into the annular groove (323) to scrape off the particles in the annular groove (323); A baffle assembly (34) is provided, which encloses both sides of the second cleaning roller (32) and the first cleaning roller (31). The width of the asphalt discharge towards the base fabric can be controlled by adjusting the spacing of the baffle assembly (34). The discharge position of the asphalt compound can be adjusted by adjusting the position of the baffle assembly (34) relative to the second cleaning roller (32) and the first cleaning roller (31).

2. The method for removing asphalt rubber particles according to claim 1, characterized in that: After step S3, the following steps are also included: Step S4, recycling: The material trough (4) collects the scraped granular asphalt material for recycling and reuse.

3. The method for removing asphalt rubber particles according to any one of claims 1-2, characterized in that: In step S2, a right scraper assembly (36) is provided that is movably connected to one side of the first cleaning roller (31). The right scraper assembly (36) contacts the surface of the first cleaning roller (31). When the first cleaning roller (31) rotates, the right scraper assembly (36) scrapes off the asphalt adhesive on the surface of the first cleaning roller (31).

4. The method for removing asphalt rubber particles according to claim 3, characterized in that: The right scraper assembly (36) is provided with a first blade (361), a first drive cylinder (362) and a first limiting rod (363). The first drive cylinder (362) moves in a telescopic motion to push the first blade (361) to rotate around its own center. One end of the first blade (361) is attached to the first limiting rod (363), so that the position of the first blade (361) is fixed. The posture of the first blade (361) is adjusted by rotating the first limiting rod (363). After the posture of the first blade (361) changes, the distance and angle between the first blade (361) and the surface of the first cleaning roller (31) change.

5. The method for removing asphalt rubber particles according to claim 4, characterized in that: The left scraper assembly (37) includes a second blade (371), a second drive cylinder (372), and a second limiting rod (373). The second drive cylinder (372) moves in a telescopic motion to push the second blade (371) to rotate around its own center. One end of the second blade (371) is attached to the second limiting rod (373), so that the position of the second blade (371) is fixed. The angle between the second blade (371) and the surface of the second cleaning roller (32) and the depth of the blade (371) into the annular groove (323) can be adjusted by adjusting the posture of the second blade (371).

6. The method for removing asphalt rubber particles according to claim 5, characterized in that: After the limiting part (374) at one end of the second blade (371) overlaps and engages with the second limiting rod (373), the posture of the second blade (371) is stabilized. The multiple scraping teeth (375) at the other end of the second blade (371) extend into the multiple annular grooves (323) in a corresponding manner. During the rotation of the second cleaning roller (32), the asphalt rubber in the annular grooves (323) is scraped out.

7. The method for removing asphalt rubber particles according to claim 1, characterized in that: The material blocking assembly (34) includes a left baffle (341), a left handwheel (342), a right baffle (343), a right handwheel (344), and a guide rod (345). Rotating the left handwheel (342) pushes the left baffle (341) to move on the guide rod (345), and rotating the right handwheel (344) pushes the right baffle (343) to move on the guide rod (345). The position and spacing of the left baffle (341) and the right baffle (343) can be controlled to adjust the unloading width and unloading position of the asphalt adhesive.

8. The method for removing asphalt rubber particles according to claim 7, characterized in that: A movable component (35) connected to the first cleaning roller (31) is provided. The movable component (35) moves toward the second cleaning roller (32), thereby driving the first cleaning roller (31) to move toward the second cleaning roller (32), thereby changing the distance between the first cleaning roller (31) and the second cleaning roller (32) to control the discharge flow rate of the asphalt compound.

9. The method for removing asphalt rubber particles according to claim 1, characterized in that: A power assembly (33) connected to the second cleaning roller (32) is provided. The power assembly (33) drives the second cleaning roller (32) to rotate. The second cleaning roller (32) drives the first cleaning roller (31) to rotate in the same direction at the same speed. The discharge flow rate of the asphalt compound is adjusted by controlling the speed of the power assembly (33).

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