Road asphalt recycling equipment

Abstract

The present invention relates to a road asphalt recycling and reproducing equipment, belonging to the technical field of road maintenance. It adopts an integrated module design and is highly applicable to the road maintenance system. The equipment includes a crushing unit group, a cleaning unit group, a drying unit group and a mixing unit group. The crushing unit group is composed of a coarse crushing component and a fine crushing component to achieve step-by-step crushing of waste asphalt pavement. The cleaning unit group effectively cleans the crushed fine asphalt crushed material through the cooperation of the flushing component and the vibration component. The drying unit group uses an inclined conveyor belt and a drying fan to quickly dry the cleaned asphalt material. Finally, the mixing and stirring mechanism of the mixing unit group fully mixes the dried asphalt material for reuse. The entire equipment has a smooth process and strong real-time processing capability, which effectively improves the efficiency and quality of road asphalt recycling and reuse, and provides strong support for the road maintenance system.

Description

Technical Field

[0001] The invention relates to a road surface asphalt recycling and reproducing device, belonging to the technical field of road surface maintenance. Background Art

[0002] Asphalt pavement will inevitably be damaged in various ways during use, among which potholes are one of the most common forms of damage. When repairing existing potholes, it is necessary to use a pavement cutting machine to cut the edges of the potholes. After cutting, the excess asphalt pavement inside the potholes is removed. If the removed asphalt pavement is not processed and stored casually, it will seriously affect the environment. Currently, it is mainly recycled and crushed to form asphalt crushed materials.

[0003] There is a Chinese invention patent with publication number CN110344305A, which is an asphalt mixture regeneration equipment and method. The original material and recycled material are respectively sent into the original drying drum and the recycled drying drum, and the original material is heated and dried by a burner. The dried original hot material enters the original material hot material bin through the original material vibrating screen; the hot air in the original drying drum enters the regeneration drying drum through the transition chamber to heat and dry the recycled material, and the dried regenerated hot material is switched into two regenerated hot material temporary storage bins through the regeneration material dividing mechanism of the transition chamber; regeneration agent is added to the two regenerated hot material temporary storage bins through a regeneration agent adding device; the original hot material, recycled hot material, asphalt, and mineral powder are respectively sent into the original material measuring hopper, the recycled material measuring hopper, the asphalt measuring cylinder, and the mineral powder measuring hopper for weighing and metering. The various raw materials after metering fall into the mixing cylinder respectively, are fully stirred and mixed, and form a qualified regenerated asphalt mixture with strict grading.

[0004] The inventors have discovered that the prior art has at least the following technical problems:

[0005] The current road asphalt recycling process first breaks the road asphalt into asphalt crushed material. However, the subsequent treatment method mainly relies on cold treatment, that is, the asphalt crushed material is cleaned by flushing and washing. After that, the crushed material needs to be dried by drying or airing, and finally mixed into asphalt mixture.

[0006] This treatment method is particularly inconvenient for handling small-scale asphalt crushed materials. There are road builders between road maintenance personnel and asphalt pavement producers. In actual production, road builders purchase from producers and then lay the road surface. Later, road maintenance personnel usually use cold patch materials for repairs. It is difficult for road maintenance personnel to effectively store and manage the small-scale asphalt pavement blocks they remove. Summary of the invention

[0007] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art and provide a road asphalt recycling and reproducing device which adopts an integrated module design, is suitable for road maintenance, performs real-time processing, and has high efficiency.

[0008] The road asphalt recycling and reproducing equipment of the present invention comprises:

[0009] A crushing unit group includes a coarse crushing component, and a fine crushing component is provided at the discharge end of the coarse crushing component;

[0010] The cleaning unit group includes a flushing component arranged at the discharge end of the fine crushing component, and a vibration component is arranged at the lower end of the flushing component. The flushing component cooperates with the vibration component to flush the crushed fine asphalt crushed material;

[0011] The drying unit group includes a conveying assembly installed below the discharge end of the vibration assembly, the conveying assembly includes a conveying belt installed obliquely, and a drying fan is installed above the travel route of the conveying belt;

[0012] The mixing unit group includes a mixing assembly installed at the end of the conveyor belt travel path, and the mixing assembly includes at least one mixing and stirring mechanism.

[0013] Furthermore, the coarse crushing assembly includes a shell I, inside which two coarse crushing rollers are correspondingly installed, between which two coarse crushing rollers are installed two hinged movable jaw plates, one end of the two coarse crushing rollers is connected by gears, and a driving mechanism is installed at the end of one group of crushing rollers away from the gear connection.

[0014] Furthermore, the fine crushing assembly includes a shell II mounted on the lower end of the shell I, two fine crushing rollers are mounted inside the shell II, one end of the two fine crushing rollers is connected by gears, an input gear is mounted on the end of one of the fine crushing rollers away from the gear connection, and an output gear is mounted on the end corresponding to the coarse crushing roller, and the output gear is connected to the input gear through an idler gear;

[0015] A gathering frame is provided between shells I and II, and is used to gather the coarse asphalt crushed material so that it enters the working area of ​​the two fine crushing rollers.

[0016] Furthermore, the flushing component includes a shell III, an inclined material baffle plate is provided at the upper end of the shell III, and a flushing nozzle is correspondingly installed at the lower end of the material baffle plate.

[0017] Furthermore, the vibration assembly includes a shell IV installed at the lower end of the shell III, and a tilted vibration plate is elastically installed inside the shell IV. A plurality of water drop holes are opened on the vibration plate, and the vibration plate is correspondingly arranged below the flushing nozzle.

[0018] Furthermore, the vibration plate is arranged to be gradually inclined downward from the middle to both ends, and a vibrator is installed at the lower end of the middle position of the vibration plate. When the fine asphalt crushed material falls onto the vibration plate, it slowly moves to both sides under the action of the vibrator.

[0019] Furthermore, the flushing assembly also includes a shell V installed at the lower end of the shell IV, a water tank is installed inside the shell V, two obliquely arranged guide plates are provided at both ends of the water tank, the guide plates are arranged at both ends of the vibration plate accordingly, and a gap is left between the guide plates and the vibration plate.

[0020] Furthermore, a filter mechanism is installed in the water tank, and the filter mechanism includes a filter box that is slidably pushed into the water tank, and filter materials are laid in the filter box.

[0021] Furthermore, the conveying assembly includes a shell VI, in which an inclined triangular plate is installed, and one end of the conveying belt is correspondingly installed below the triangular plate.

[0022] The mixing assembly includes a shell VII installed at the lower end of the shell VI, a mixing and stirring mechanism installed inside the shell VII, and the other end of the conveyor belt is further installed at the upper end of the shell VII. The shell VII is located below the conveyor belt and has a material gathering port correspondingly arranged therein.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention can directly add the road asphalt removed from the potholes through the crushing unit group, the cleaning unit group, the drying unit group and the mixing unit group, process the road asphalt into asphalt crushed material through the crushing unit group, clean the asphalt crushed material through the cleaning unit group to remove impurities and dust on the surface of the asphalt crushed material, and finally add other ingredients and the asphalt crushed material through the mixing unit group to process it into cold patch material, which can be directly used when repairing the potholes, realizing real-time processing and making the construction more convenient for road maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0026] Figure 2 is a full cross-sectional schematic diagram of embodiment 1 of the present invention;

[0027] Figure 3 This is one of the schematic diagrams of the structure of the crushing unit group according to Example 1 of the present invention;

[0028] Figure 4 This is the second schematic diagram of the structure of the crushing unit group according to the first embodiment of the present invention;

[0029] Figure 5 Schematic diagram of the structure of the coarse crushing assembly of Example 1 of the present invention;

[0030] Figure 6 is a right side view of the coarse crushing assembly of Example 1 of the present invention;

[0031] Figure 7 yes Figure 6 Full section view at AA in the middle;

[0032] Figure 8 This is one of the structural schematic diagrams of the fine crushing unit group of Example 1 of the present invention;

[0033] Fig. 9 This is the second structural schematic diagram of the fine crushing unit group of Example 1 of the present invention;

[0034] Fig.10 This is one of the schematic diagrams of the cleaning unit group structure of Example 1 of the present invention;

[0035] Fig.11 is a schematic structural diagram of a conveying assembly according to Embodiment 1 of the present invention;

[0036] Fig.12 This is the second structural schematic diagram of the cleaning unit group according to the first embodiment of the present invention;

[0037] Fig.13 Schematic diagram of the internal structure of the cleaning unit group according to Embodiment 1 of the present invention;

[0038] Fig.14 is a schematic structural diagram of a vibration assembly according to Embodiment 1 of the present invention;

[0039] Fig.15 is a schematic diagram of the structure of the filtering mechanism of Example 1 of the present invention;

[0040] Fig.16 is a schematic diagram of the structure of a set plate according to Embodiment 1 of the present invention;

[0041] Fig.17 Schematic diagram of the structure of the mixing and stirring mechanism of Example 1 of the present invention;

[0042] Fig.18 is a schematic diagram of the working structure of embodiment 1 of the present invention;

[0043] In the figure:

[0044] 1. Coarse crushing assembly; 11. Shell I; 111. Triangular support seat; 12. Coarse crushing roller; 121. Driving mechanism; 122. Output gear; 13. Moving jaw plate; 14. Elastic member;

[0045] 2. Fine crushing assembly; 21. Shell II; 22. Fine crushing roller; 221. Input gear; 23. Aggregate frame;

[0046] 3. Flushing assembly; 31. Shell III; 32. Material baffle plate; 33. Flushing nozzle; 34. Shell V; 35. Filter mechanism; 36. Water tank; 37. Guide plate; 38. Water pump;

[0047] 4. Vibration assembly; 41. Shell IV; 42. Vibration plate; 421. Gap; 43. Vibrator;

[0048] 5. Drying fan;

[0049] 6. Conveying assembly; 61. Shell VI; 62. Triangular plate; 63. Conveying belt;

[0050] 7. Mixing assembly; 71. Shell VII; 711. Guide column; 72. Mixing and stirring mechanism; 721. Mounting frame; 722. Driving motor; 723. Stirring rod; 724. Stirring barrel; 73. Material gathering port;

[0051] 8. Support frame. DETAILED DESCRIPTION

[0052] Example 1

[0053] like Figures 1 to 18 As shown, the road asphalt recycling and reproducing equipment of the present invention comprises:

[0054] The crushing unit group includes a coarse crushing component 1, and a fine crushing component 2 is provided at the discharge end of the coarse crushing component 1; the heat generation of the road asphalt during crushing can be greatly reduced through graded crushing; and the quality after crushing is higher;

[0055] The cleaning unit group includes a flushing component 3 arranged at the discharge end of the fine crushing component 2, and a vibration component 4 is correspondingly arranged at the lower end of the flushing component 3. The flushing component 3 cooperates with the vibration component 4 to flush the crushed fine asphalt crushed material;

[0056] The drying unit group includes a conveying assembly 6 installed below the discharge end of the vibration assembly 4, the conveying assembly 6 includes a conveying belt 63 installed obliquely, and a drying fan 5 is installed above the travel route of the conveying belt 63;

[0057] The mixing unit group includes a mixing assembly 7 installed at the end of the travel path of the conveyor belt 63 , and the mixing assembly 7 includes at least one mixing and stirring mechanism 72 .

[0058] like Figure 3 to Figure 7 As shown, the coarse crushing assembly 1 includes a shell body Ⅰ11, two coarse crushing rollers 12 are correspondingly installed inside the shell body Ⅰ11, two hinged movable jaw plates 13 are installed between the two coarse crushing rollers 12, one end of the two coarse crushing rollers 12 are connected by gears, and a driving mechanism 121 is installed at the end of one group of crushing rollers away from the gear connection.

[0059] The driving mechanism 121 comprises a motor, an output end of the motor is connected to a reduction box, and the motor is connected to the coarse crushing roller 12 via the reduction box.

[0060] like Figure 7 As shown, a triangular support seat 111 is fixed to the lower end of the shell Ⅰ11, and a row of elastic members 14 are installed on the triangular support seat 111. The elastic member 14 includes a base installed on the triangular support seat 111, and a compression spring is installed on the base. A pressure head is installed at the other end of the compression spring. The pressure head supports the movable jaw plate 13 through elastic force to avoid material jamming.

[0061] The fine crushing assembly 2 includes a shell II 21 mounted on the lower end of the shell I 11, and two fine crushing rollers 22 are correspondingly mounted inside the shell II 21. One end of the two fine crushing rollers 22 is connected with gears, and an input gear 221 is mounted on the end of one of the fine crushing rollers 22 away from the gear connection, and an output gear 122 is mounted on the end corresponding to the coarse crushing roller 12, and the output gear 122 is connected to the input gear 221 through an idler gear;

[0062] A gathering frame 23 is provided between the shell Ⅰ11 and the shell Ⅱ21. The gathering frame 23 is used to gather the coarse asphalt crushed material so that it enters the working area of ​​the two fine crushing rollers 22. The gathering frame 23 prevents the material from falling outside the fine crushing rollers 22.

[0063] like Figure 11-12 As shown, the flushing assembly 3 includes a shell III 31, an inclined material baffle plate 32 is provided at the upper end of the shell III 31, and a flushing nozzle 33 is correspondingly installed at the lower end of the material baffle plate 32. The material baffle plate 32 allows the fine asphalt crushed materials to fall in a row, which is convenient for the flushing nozzle 33 to work.

[0064] like Figure 2 or Fig.14 As shown, the vibration assembly 4 includes a shell body IV41 installed at the lower end of the shell body III31, and a tilted vibration plate 42 is elastically installed inside the shell body IV41. The tilt angle of the vibration plate 42 determines the moving speed of the fine asphalt crushed material. A plurality of drainage holes are opened on the vibration plate 42, and the vibration plate 42 is correspondingly arranged below the flushing nozzle 33.

[0065] like Figure 2 or Fig.14 As shown, the vibration plate 42 is arranged to be gradually inclined downward from the middle to the two ends, and a vibrator 43 is installed at the lower end of the middle position of the vibration plate 42. When the fine asphalt crushed material falls onto the vibration plate 42, it slowly moves to both sides under the action of the vibrator 43.

[0066] like Fig.14As shown, the flushing assembly 3 also includes a shell V34 installed at the lower end of the shell IV41, and a water tank 36 is installed inside the shell V34. Two inclined guide plates 37 are provided at both ends of the water tank 36. The guide plates 37 are arranged at the two ends of the vibration plate 42 respectively, and a gap 421 is left between the guide plates 37 and the vibration plate 42. The gap 421 allows water to flow downward into the water tank 36. At the same time, the fine asphalt crushed material will fall forward onto the guide plates 37 through vibration inertia, and then fall from both ends of the guide plates 37.

[0067] A filter mechanism 35 is installed in the water tank 36. The filter mechanism 35 includes a filter box that is slidably pushed into the water tank 36. Filter material is laid in the filter box for easy cleaning.

[0068] A water pump 38 is installed outside the water tank 36. The water pump 38 pumps water out from the bottom of the water tank and sends it into the flushing nozzle 33 for circulating flushing.

[0069] like Fig.16 As shown, the conveying assembly 6 includes a shell VI 61, in which an inclined triangular plate 62 is installed, and one end of a conveyor belt 63 is installed correspondingly below the triangular plate 62. Through the arrangement of the triangular plate 62, the fine asphalt crushed materials falling from both sides of the water tank 36 can fall evenly onto the conveyor belt 63 to avoid accumulation at one place of the conveyor belt 63.

[0070] The mixing assembly 7 includes a shell VII71 installed at the lower end of the shell VI61, a mixing and stirring mechanism 72 installed inside the shell VII71, the other end of the conveyor belt 63 installed at the upper end of the shell VII71, and a material gathering port 73 corresponding to the shell VII71 located below the conveyor belt 63.

[0071] The mixing and stirring mechanism 72 includes a mounting frame 721, on which a driving motor 722 is mounted, and an output end of the driving motor 722 is connected to a stirring rod 723, and a stirring barrel 724 is mounted on the outside of the stirring rod 723. The stirring barrel 724 is fixed to the inside of the shell Ⅶ71, and guide columns 711 are installed on the two inner side walls at the upper end of the shell Ⅶ71. The mounting frame 721 is slidably mounted on the guide columns 711 and fixed by screws, which is convenient for assembly and disassembly, and it is more convenient to clean the stirring barrel 724.

[0072] A support frame 8 is installed at the lower end of the shell VII71.

[0073] The shell Ⅰ11, the shell Ⅱ21, the shell Ⅲ31, the shell Ⅳ41, the shell Ⅴ34 and the shell Ⅵ61 are connected in sequence from top to bottom.

[0074] Working process or working principle:

[0075] like Fig.18As shown, the block-shaped road asphalt is sent from the workbench to the coarse crushing component 1, and after the first crushing, it enters the fine crushing component 2 through the gathering frame 23. After the second crushing, asphalt crushed materials are formed and fall onto the vibration plate 42. At this time, the flushing nozzle 33 flushes the asphalt crushed materials that fall on the vibration plate 42. The asphalt crushed materials move to both sides along the vibration plate 42, and fall onto the triangular plate 62 from both sides of the water tank 36. The triangular plate 62 spreads the asphalt crushed materials on the conveyor belt 63, and finally enters the mixing barrel 724 from the gathering port 73. Other ingredients can be added from the gathering port 73 at the other end, and finally the asphalt crushed materials are bagged from the lower end.

[0076] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A road asphalt recycling and reproducing equipment, characterized in that: include, A crushing unit group comprises a coarse crushing component (1), wherein a fine crushing component (2) is provided at the discharge end of the coarse crushing component (1); The cleaning unit group comprises a flushing component (3) arranged at the discharge end of the fine crushing component (2), a vibration component (4) correspondingly arranged at the lower end of the flushing component (3), and the flushing component (3) cooperates with the vibration component (4) to flush the crushed fine asphalt crushed material; A drying unit group, comprising a conveying assembly (6) installed below the discharge end of the vibration assembly (4), the conveying assembly (6) comprising a conveying belt (63) installed in an inclined manner, and a drying fan (5) is installed above the travel route of the conveying belt (63); A mixing unit group, comprising a mixing assembly (7) mounted to the end of the travel path of the conveyor belt (63), the mixing assembly (7) comprising at least one mixing and stirring mechanism (72); The conveying assembly (6) comprises a housing VI (61), wherein an inclined triangular plate (62) is installed in the housing VI (61), and one end of a conveying belt (63) is correspondingly installed below the triangular plate (62); The mixing assembly (7) comprises a shell VII (71) mounted correspondingly at the lower end of the shell VI (61), a mixing and stirring mechanism (72) mounted inside the shell VII (71), the other end of the conveyor belt (63) mounted at the upper end of the shell VII (71), and a material gathering port (73) disposed correspondingly below the conveyor belt (63) in the shell VII (71); The mixing and stirring mechanism (72) comprises a mounting frame (721), a driving motor (722) is mounted on the mounting frame (721), a stirring rod (723) is connected to the output end of the driving motor (722), a stirring barrel (724) is sleeved on the outside of the stirring rod (723), the stirring barrel (724) is fixed to the inside of the shell VII (71), guide columns (711) are mounted on two inner side walls at the upper end of the shell VII (71), and the mounting frame (721) is slidably mounted on the guide columns (711); The coarse crushing assembly (1) comprises a housing I (11), two coarse crushing rollers (12) are correspondingly mounted inside the housing I (11), two hinged movable jaw plates (13) are mounted between the two coarse crushing rollers (12), one end of the two coarse crushing rollers (12) is connected by gears, and a driving mechanism (121) is mounted on the end of one of the coarse crushing rollers (12) away from the gear connection; The fine crushing assembly (2) comprises a housing II (21) mounted on the lower end of the housing I (11), two fine crushing rollers (22) are mounted inside the housing II (21), one end of the two fine crushing rollers (22) are connected by gears, an input gear (221) is mounted on the end of one of the fine crushing rollers (22) away from the gear connection, an output gear (122) is mounted on the end corresponding to the coarse crushing roller (12), and the output gear (122) is connected to the input gear (221) via an idler gear; A material gathering frame (23) is provided between the shell I (11) and the shell II (21), and the material gathering frame (23) is used to gather the coarse asphalt crushed material so that it enters the working area of ​​the two fine crushing rollers (22); The flushing assembly (3) comprises a shell III (31), an inclined material baffle plate (32) is provided at the upper end of the shell III (31), and a flushing nozzle (33) is correspondingly mounted at the lower end of the material baffle plate (32); The vibration assembly (4) comprises a shell body IV (41) mounted on the lower end of the shell body III (31), a vibration plate (42) arranged obliquely is elastically mounted inside the shell body IV (41), a plurality of water drop holes are formed on the vibration plate (42), and the vibration plate (42) is arranged correspondingly below the flushing nozzle (33).

2. The road asphalt recycling and reproducing equipment according to claim 1, characterized in that: The vibration plate (42) is arranged to be gradually inclined downward from the middle to the two ends. A vibrator (43) is installed at the lower end of the middle position of the vibration plate (42). When the fine asphalt crushed material falls onto the vibration plate (42), it slowly moves to both sides under the action of the vibrator (43).

3. The road asphalt recycling and reproducing equipment according to claim 2 is characterized in that: The flushing assembly (3) further comprises a housing V (34) mounted on the lower end of the housing IV (41), a water tank (36) being mounted inside the housing V (34), two obliquely arranged guide plates (37) being provided at both ends of the water tank (36), the guide plates (37) being arranged at the corresponding ends of the vibration plate (42), and a gap (421) being left between the guide plates (37) and the vibration plate (42).

4. The road asphalt recycling and reproducing equipment according to claim 3 is characterized in that: A filter mechanism (35) is installed in the water tank (36), and the filter mechanism (35) comprises a filter box that is slidably pushed into the water tank (36), and filter material is laid in the filter box.

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