A dispersion cooler for asphalt mix

Abstract

The utility model discloses a kind of dispersing cooling machine for asphalt mixture, belong to asphalt recycling technical field, the equipment includes rack, is equipped with crushing device, dispersing device, cleaning assembly and cooling assembly on rack.Crushing device is broken material by two reverse rotation's rotary roller and staggered crushing tooth disc, cooperate limiting tooth plate and clean adhering asphalt on tooth disc;Dispersing device is divided chamber by filter screen, realizes classification screening when conveying roller conveys material, and plug plate device guides different granularity material and discharges from corresponding discharge port;Cleaning assembly is driven by electric push rod to swing along guide rail by cleaning scraper, cooperate bristle and clean screen filter hole;Cooling assembly is sprayed by water pump to the cooling water of water storage tank body through spraying channel, realizes material cooling and screen flushing cooperation.The utility model solves the problem of existing equipment crushing adhesion, low screening precision, screen easy to block, low cooling efficiency, can improve processing efficiency and continuity, reduce energy consumption and maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of asphalt recycling technology, and in particular relates to a dispersion cooler for asphalt mixtures. Background Technology

[0002] During road maintenance and repair, a large amount of waste asphalt mixture is generated. Recycling and reusing it can reduce resource waste and environmental pollution, and has significant economic and environmental value. Currently, the treatment of waste asphalt mixture usually requires multiple processes such as crushing, dispersing, and cooling. Existing treatment equipment has the following shortcomings: In the crushing process, the teeth of traditional crushing devices are prone to sticking with asphalt, causing the crushing efficiency to decrease over time and requiring frequent shutdowns for cleaning. In the dispersion and screening stage, the particle size classification accuracy of the material is low, and materials of different sizes are easily mixed, affecting the subsequent recycling effect. The filter screen is easily clogged by fine particles, requiring regular manual cleaning, which increases maintenance costs and downtime. The cooling system has poor coordination with the crushing and screening processes, resulting in uneven cooling and high water consumption, making it difficult to meet the needs of continuous and efficient processing. Therefore, there is an urgent need for an asphalt mixture processing equipment that can achieve integrated operation of crushing, dispersing, screening and cooling, and has self-cleaning function, low energy consumption and convenient maintenance, so as to improve the recycling efficiency and quality of waste asphalt mixtures. Utility Model Content

[0003] In view of this, in order to solve the above problems, this utility model provides a dispersion cooler for asphalt mixtures.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dispersion cooler for asphalt mixtures, comprising: frame; A crushing device is fixedly installed on the top of the frame and is used to crush materials; A dispersing device is disposed on the top of the frame and below the crushing device. The dispersing device includes a dispersing cylinder. The top of the dispersing cylinder has a feed inlet that communicates with the discharge port of the crushing device. The dispersing cylinder is provided with at least two filter screens, which divide the interior of the dispersing cylinder into multiple chambers. Each chamber is equipped with a conveying roller shaft rotatably mounted on a bearing. A motor II is fixedly mounted on one side of the dispersing cylinder to drive all the conveying roller shafts to rotate synchronously. The material moves under the conveying of the conveying roller shafts and can be screened by the filter screens. A cleaning component, corresponding to the filter screen, is used to clean the mesh of the filter screen; The cooling assembly includes a water storage tank and a water pump, the water pump being used to transport and spray cooling water from the water storage tank onto the material in the dispersion device.

[0005] As a further improvement to the above technical solution: The crushing device includes a crushing box fixedly installed on the top of the frame. Two rotating rollers are arranged in parallel rotation within the crushing box via bearings. Multiple sets of crushing toothed discs are fixedly fitted on the outer circumference of each rotating roller. The crushing toothed discs on the two rotating rollers are staggered. A motor I is fixedly installed on the top of the frame. The output end of the motor I is connected to one of the rotating rollers. The two rotating rollers are connected by meshing gears.

[0006] Furthermore, multiple limiting toothed plates are fixedly installed on both opposite inner sidewalls of the crushing chamber. The toothed structure of the limiting toothed plates is interlocked with the teeth of the crushing disc to scrape off the asphalt material adhering to the teeth of the crushing disc.

[0007] Furthermore, the cleaning assembly includes two sets of guide rails fixedly disposed at the bottom of each of the filter screens, a cleaning scraper slidably disposed on the two sets of guide rails, and a driving component for driving the cleaning scraper to reciprocate along the guide rails. The top of the cleaning scraper is provided with bristles that contact the bottom surface of the filter screen, and the bristles are used to clean the mesh of the filter screen.

[0008] Furthermore, the driving component is an electric push rod, and a blocking plate device is provided at the bottom of each filter screen inside the dispersion cylinder. The blocking plate device includes a connected guide plate and a protective baffle. A guide opening is provided on the guide plate. The cylinder of the electric push rod is rotatably connected between the guide plate and the protective baffle through a fixed bracket. The push rod end of the electric push rod is rotatably connected to the cleaning scraper through a connecting block. When the electric push rod extends or retracts, it can drive the cleaning scraper to move along the guide rail and make the connecting block move along the guide opening.

[0009] Furthermore, the cleaning scraper has a spray channel inside, and several spray holes are opened at the top of the spray channel. The spray channel is connected to the drain end of the water pump through a connecting pipe. The cleaning scraper sprays cooling water during the swinging cleaning process, so that the cooling water is sprayed evenly.

[0010] Furthermore, the number of filter screens is two, which divides the dispersion cylinder into three chambers. Each chamber has an independent discharge port at its bottom, which can distinguish different materials.

[0011] Furthermore, the motor II drives all the conveying roller shafts to rotate synchronously via a chain drive mechanism.

[0012] The embodiments of this utility model have the following beneficial effects: 1. Through two counter-rotating rotating rollers and staggered crushing discs, the material is continuously sheared and squeezed. The limiting tooth plates on the side wall of the crushing box clean the asphalt adhering to the teeth in time, effectively avoiding blockage. The crushing efficiency is significantly improved compared with traditional equipment, and the particle size of the crushed material is more uniform, laying the foundation for subsequent dispersion treatment. 2. The filter screen inside the dispersion cylinder divides the chamber. During the process of the conveying roller pushing the material to move, materials of different particle sizes are separated through the corresponding screen. The guide plate of the blocking device and the protective baffle cooperate to form an independent discharge channel, so that materials of each level are discharged in categories. The screening accuracy is high, which meets the differentiated needs of material particle size in different scenarios. 3. The electric push rod of the cleaning component drives the cleaning scraper to swing back and forth along the guide rail. The top bristles are in close contact with the filter screen, which can remove the clogging particles in the mesh in time. The guide plate ensures that the swing is unobstructed. Combined with the cooling water sprayed from the spray channel, the cleaning effect is further enhanced, the number of downtimes caused by screen clogging is greatly reduced, and the continuous running time of the equipment is extended. This invention utilizes the synergistic operation of crushing, screening, cleaning, and cooling to not only efficiently crush materials and achieve precise grading, but also reduce blockages and downtime through a dynamic cleaning and cooling synergistic mechanism, thereby improving continuous operation efficiency. At the same time, it has a stable structure, is easy to maintain, and reduces energy consumption and labor costs, making it suitable for large-scale asphalt mixture processing.

[0013] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a three-dimensional structural schematic diagram of a dispersion cooler for asphalt mixtures according to the present invention. Figure 2 This is a schematic diagram of the dispersion device structure of a dispersion and cooling machine for asphalt mixtures according to the present invention. Figure 3 This is a cross-sectional structural schematic diagram of the dispersion device of a dispersion and cooling machine for asphalt mixtures according to the present invention. Figure 4This is a partial structural diagram of the dispersion device of a dispersion and cooling machine for asphalt mixtures according to the present invention. Figure 5 This is a schematic diagram of the cleaning component structure of a dispersion cooler for asphalt mixtures according to the present invention. Figure 6 This is a partial cross-sectional view of the cleaning scraper of a dispersion cooler for asphalt mixtures according to the present invention. Figure 7 This is a partial structural diagram of the crushing device of a dispersion and cooling machine for asphalt mixtures according to the present invention.

[0015] In the diagram: 1. Frame; 2. Crushing device; 21. Crushing box; 22. Rotating roller; 23. Crushing toothed disc; 24. Limiting toothed plate; 25. Motor I; 26. Gear; 3. Dispersing device; 31. Dispersing cylinder; 32. Feed inlet; 33. Conveying roller; 34. Motor II; 35. Filter screen; 36. Discharge outlet; 37. Blocking plate device; 371. Guide plate; 372. Protective baffle; 373. Guide port; 4. Water pump; 5. Connecting pipe; 6. Water storage tank; 7. Cleaning scraper; 71. Brush; 72. Spraying channel; 8. Connecting block; 9. Fixed bracket; 10. Electric push rod; 11. Guide rail. Detailed Implementation

[0016] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0017] Example 1: Please refer to Figures 1-7 As shown, this embodiment provides a dispersion cooler for asphalt mixtures, including a frame 1. The frame 1 is welded from steel and has an overall rectangular frame structure. The four corners of the bottom are fixed to the ground by expansion bolts, which can stably support the weight of the upper devices. Even when the equipment vibrates during operation, it can maintain the stability of the overall structure and avoid affecting the matching accuracy of the components due to shaking. The crushing device 2 is fixed to the top of the frame 1. Its crushing chamber 21 is a rectangular structure welded from steel plates, with wear-resistant liners welded to the inner wall. These liners reduce direct wear from materials on the inside of the chamber, extending its service life. Two rotating rollers 22 are arranged in parallel inside the crushing chamber 21, with bearings at both ends mounted in bearing seats on the side walls of the chamber. The bearings ensure smooth rotation of the rotating rollers 22 and reduce energy loss due to friction. Multiple sets of crushing toothed discs 23 are evenly distributed axially on the outer wall of each rotating roller 22. The crushing toothed discs 23 on the two sets of rotating rollers 22 are arranged in a staggered pattern. When material enters between the two rotating rollers 22, the staggered teeth act like scissors, shearing and squeezing the material, thus breaking large pieces of asphalt mixture into smaller particles. Motor I 25 is bolted to the top of the frame 1 near the crushing chamber 21. Its output shaft is connected to one end of one of the rotating roller shafts 22 via a coupling. Each of the two rotating roller shafts 22 has a meshing gear 26 installed at the same end. When motor I 25 starts, power is transmitted to one of the rotating roller shafts 22 through the coupling, and then the meshing of the gears 26 drives the other rotating roller shaft 22 to rotate in the opposite direction. This ensures that the two roller shafts rotate at the same speed, ensuring that the material is subjected to uniform force during the crushing process, resulting in a more stable crushing effect. In one aspect of this embodiment, multiple limiting toothed plates 24 are fixed on the inner walls of both sides of the crushing chamber 21, corresponding to the positions of the crushing toothed discs 23 of the rotating roller shaft 22. The edges of the toothed discs are provided with tooth-shaped structures adapted to the crushing toothed discs 23, and are staggered with each other. When the rotating roller shaft 22 rotates, the crushing toothed discs 23 will continuously move relative to the limiting toothed plates 24. The edges of the toothed discs can accurately scrape across the sides of the teeth, scraping off the asphalt adhering to them, avoiding the accumulation of asphalt on the teeth, preventing the crushing effect from being affected by the narrowing of the tooth spacing, and also reducing the frequency of manual cleaning. The dispersing device 3 is installed on top of the frame 1, directly below the crushing device 2. Its dispersing cylinder 31 is a cylindrical structure made of stainless steel. Stainless steel has good corrosion resistance, can resist corrosive components that may be contained in the asphalt mixture, and is also easy to clean. The top of the dispersing cylinder 31 is provided with a feed inlet 32 ​​near the discharge port of the crushing chamber 21. The feed inlet 32 ​​is connected to the bottom of the crushing chamber 21 through a funnel-shaped channel. The funnel-shaped design can guide the crushed material smoothly into the dispersing cylinder 31 and avoid material accumulation and blockage at the inlet. In one aspect of this embodiment, two filter screens 35 are arranged parallel to each other along the length of the dispersion cylinder 31, dividing the interior of the dispersion cylinder 31 into three independent chambers. Each chamber is equipped with a conveying roller 33, with both ends of the roller mounted on the side wall of the dispersion cylinder 31 via bearings. Helical blades are welded to the surface of the roller. When the conveying roller 33 rotates, the helical blades push the material to move axially. During the movement, the material continuously contacts the screens. Particles smaller than the screen aperture will pass through the screens and fall to the bottom, while larger particles will continue to be conveyed until they are discharged at the end of the chamber, thus achieving the classification and treatment of materials of different particle sizes. Motor II 34 is fixed to the outside of one end of the dispersing cylinder 31, and its output shaft is connected to the three conveying roller shafts 33 through a chain drive mechanism. The chain drive ensures the stability of power transmission, keeps the three conveying roller shafts 33 rotating synchronously, ensures that the material is conveyed at the same speed in the three chambers, and ensures the uniformity of the screening effect. In one aspect of this embodiment, the cleaning assembly is installed at the bottom of the filter screen 35. Two sets of parallel guide rails 11 are provided below each set of filter screens 35, and the guide rails 11 are fixed to the inner wall of the dispersion cylinder 31 by bolts. A cleaning scraper 7 spans across the two sets of guide rails 11, and has a slider adapted to the guide rails 11 inside. The cooperation between the slider and the guide rails 11 ensures that the cleaning scraper 7 moves along a fixed trajectory. Brush bristles 71 are fixed to the top of the cleaning scraper 7, and the tips of the bristles 71 contact the bottom surface of the filter screen 35. When the cleaning scraper 7 moves, the bristles 71 can sweep across the bottom surface of the screen, cleaning out the fine particles clogging the screen holes and preventing screen clogging from affecting the screening efficiency. The cleaning scraper 7 has a spray channel 72 inside and multiple spray holes on its top. The water storage tank 6 of the cooling component is placed at the bottom of the frame 1, with a water inlet on the top and a water outlet on one side. The water pump 4 is fixed to the side of the water storage tank 6, with its inlet connected to the water storage tank 6 via a pipe and its outlet connected to the spray channel 72 of the cleaning scraper 7 via a connecting pipe 5. When the water pump 4 is working, cooling water enters the spray channel 72 through the connecting pipe 5 and is then sprayed out from the spray holes. The sprayed water can directly spray onto the material, and the evaporation of the water carries away the heat from the material, thus cooling it.

[0018] This invention can be used in the field of dispersion and cooling machines for asphalt mixtures, and can also be applied to other fields of this invention.

[0019] Example 2: This example is a further improvement on the previous example: as follows Figures 1-7 As shown.

[0020] In one aspect of this embodiment, a blocking device 37 is installed at the bottom port of each filter screen 35. The blocking device 37 consists of a guide plate 371 and a protective baffle 372. The upper end of the guide plate 371 is connected to the edge of the filter screen 35, and the side is connected to the port of the dispersion cylinder 31. The protective baffle 372 is vertically fixed to the outside of the guide plate 371 and connected to the bottom of the dispersion cylinder 31. The two sets of blocking devices 37 cooperate to divide the bottom of the dispersion cylinder 31 into three independent discharge ports 36. Each discharge port 36 corresponds to a chamber, and materials of different particle sizes can be discharged from their respective discharge ports 36, avoiding the mixing of materials of different particle sizes and improving the purity of the material after screening.

[0021] In one aspect of this embodiment, two fixed brackets 9 are fixed to the outer side of the guide plate 371 of the blocking device 37. One end of the electric push rod 10 is installed between the two fixed brackets 9 via a pin. A connecting block 8 is welded to one side of the cleaning scraper 7, and the output end of the electric push rod 10 is connected to the connecting block 8 via a pin. A guide opening 373 is provided at the top of the guide plate 371, and the curvature of the guide opening 373 is consistent with the swing trajectory of the cleaning scraper 7. When the electric push rod 10 extends or retracts, it drives the cleaning scraper 7 to swing back and forth in an arc along the guide rail 11. The guide opening 373 provides space for the swing of the cleaning scraper 7, avoiding collision with the guide plate 371. This reciprocating swinging method allows the bristles 71 to fully cover the bottom of the screen, ensuring that the screen holes in each area are cleaned.

[0022] Working Principle: Waste asphalt mixture is first fed into the crushing chamber 21 of the crushing device 2. After the motor I 25 starts, it drives one of the rotating roller shafts 22 to rotate via a coupling. The gear 26 at the other end of the rotating roller shaft 22 meshes with the gear 26 of the other rotating roller shaft 22, causing the two rotating roller shafts 22 to rotate synchronously in opposite directions. The crushing toothed discs 23 on the outer wall of the rotating roller shaft 22 rotate with the shaft. The two sets of staggered crushing toothed discs 23 exert a shearing and squeezing effect on the material entering between them, breaking large pieces of mixture into smaller particles. During this process, the limiting toothed plate 24 on the inner wall of the crushing chamber 21 maintains a staggered movement with the crushing toothed discs 23. The edge of the toothed disc continuously scrapes the side of the crushing toothed disc 23, scraping off the adhering asphalt, avoiding blockage between the teeth, and ensuring stable crushing efficiency.

[0023] The crushed material passes through the outlet at the bottom of the crushing chamber 21 and falls into the dispersion cylinder 31 of the dispersion device 3 below via the feed inlet 32. Two filter screens 35 inside the dispersion cylinder 31 divide the cylinder into three chambers. In each chamber, the conveying rollers 33, driven by the motor II 34 (rotating synchronously via chain drive), propel the material axially using spiral blades on their surface. During this movement, particles smaller than the mesh size of the filter screens 35 pass through and fall to the bottom, while larger particles continue to be conveyed to the end of the chamber. A baffle plate device 37 separates the material in different chambers, ultimately allowing the three different particle sizes to be discharged from their respective outlets 36, achieving graded collection.

[0024] To prevent material blockage from affecting the screening effect of the filter screen 35, the cleaning components operate synchronously. The electric push rod 10 is fixed on the fixed bracket 9 on the outside of the guide plate 371, and its output end is connected to the cleaning scraper 7 through the connecting block 8. When the electric push rod 10 extends or retracts, the cleaning scraper 7 moves in a reciprocating arc along the guide rail 11, and the bristles 71 at the top make close contact with the bottom surface of the filter screen 35, sweeping away the fine particles embedded in the mesh. The guide opening 373 at the top of the guide plate 371 provides movement space for the cleaning scraper 7, ensuring that it does not interfere with other components during the swinging process and continuously maintains the screen's permeability.

[0025] The cooling function is achieved through a cooling component: cooling water in the water storage tank 6 is drawn by the water pump 4 and transported through the connecting pipe 5 to the spray channel 72 inside the cleaning scraper 7, and then sprayed out from the spray hole at the top of the spray channel 72. Part of the sprayed cooling water is directly sprayed onto the material inside the dispersion cylinder 31, absorbing the heat of the material through heat exchange and reducing the material temperature.

[0026] However, as is well known to those skilled in the art, the working principles and wiring methods of motor I 25, motor II 34, water pump 4 and electric push rod 10 are commonplace and belong to conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A dispersion cooler for asphalt mixtures, characterized in that, include: Rack (1); The crushing device (2) is fixedly installed on the top of the frame (1) and is used to crush materials; A dispersing device (3) is set on the top of the frame (1) and below the crushing device (2). The dispersing device (3) includes a dispersing cylinder (31). The top of the dispersing cylinder (31) is provided with a feed inlet (32) that communicates with the discharge port of the crushing device (2). The dispersing cylinder (31) is provided with at least two filter screens (35). The filter screens (35) divide the interior of the dispersing cylinder (31) into multiple chambers. Each chamber is provided with a conveying roller (33) rotatably arranged by a bearing. A motor II (34) is fixedly arranged on one side of the dispersing cylinder (31) for driving all the conveying rollers (33) to rotate synchronously. The material moves under the conveying of the conveying rollers (33) and can be screened by the filter screens (35). A cleaning component, provided corresponding to the filter screen (35), is used to clean the mesh of the filter screen (35); The cooling assembly includes a water storage tank (6) and a water pump (4), the water pump (4) being used to transport and spray cooling water from the water storage tank (6) onto the material in the dispersing device (3).

2. The dispersion cooler for asphalt mixtures according to claim 1, characterized in that, The crushing device (2) includes a crushing box (21) fixedly installed on the top of the frame (1). Two rotating rollers (22) are arranged in parallel rotation through bearings inside the crushing box (21). Multiple sets of crushing toothed discs (23) are fixedly sleeved on the outer periphery of each rotating roller (22). The crushing toothed discs (23) on the two rotating rollers (22) are staggered. A motor I (25) is fixedly installed on the top of the frame (1). The output end of the motor I (25) is connected to one of the rotating rollers (22) for transmission. The two rotating rollers (22) are connected to each other for transmission through meshing gears (26).

3. The dispersion and cooling machine for asphalt mixtures according to claim 2, characterized in that, Multiple limiting toothed plates (24) are fixedly provided on the two opposite inner sidewalls of the crushing box (21). The toothed structure of the limiting toothed plate (24) is interlocked with the teeth of the crushing toothed disc (23) to scrape off the asphalt material adhering to the teeth of the crushing toothed disc (23).

4. The dispersion cooler for asphalt mixtures according to claim 1, characterized in that, The cleaning assembly includes two sets of guide rails (11) fixedly disposed at the bottom of each of the filter screens (35), a cleaning scraper (7) slidably disposed on the two sets of guide rails (11), and a driving component for driving the cleaning scraper (7) to reciprocate along the guide rails (11). The top of the cleaning scraper (7) is provided with bristles (71) that contact the bottom surface of the filter screen (35).

5. The dispersion cooler for asphalt mixtures according to claim 4, characterized in that, The driving component is an electric push rod (10). A blocking device (37) is provided at the bottom of each filter screen (35) in the dispersion cylinder (31). The blocking device (37) includes a connected guide plate (371) and a protective baffle (372). A guide opening (373) is provided on the guide plate (371). The cylinder of the electric push rod (10) is rotatably connected between the guide plate (371) and the protective baffle (372) through a fixed bracket (9). The push rod end of the electric push rod (10) is rotatably connected to the cleaning scraper (7) through a connecting block (8). When the electric push rod (10) extends or retracts, it can drive the cleaning scraper (7) to move along the guide rail (11) and make the connecting block (8) move along the guide opening (373).

6. The dispersion cooler for asphalt mixtures according to claim 4 or 5, characterized in that, The cleaning scraper (7) has a spray channel (72) inside, and the top of the spray channel (72) has several spray holes. The spray channel (72) is connected to the drain end of the water pump (4) through a connecting pipe (5).

7. The dispersion cooler for asphalt mixtures according to claim 1, characterized in that, The number of filter screens (35) is two, which divide the dispersion cylinder (31) into three chambers, and each chamber has an independent discharge port (36) at the bottom.

8. The dispersion cooler for asphalt mixtures according to claim 1, characterized in that, The motor II (34) drives all the conveying rollers (33) to rotate synchronously via a chain drive mechanism.

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